Running `git fetch --unshallow` on a repo that is not in fact shallow
produces a fatal error message. Add a helper to rev-parse that scripters
can use to determine whether a repo is shallow or not.
Signed-off-by: Øystein Walle <oystwa@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, rev-parse only interprets a space ' ' character as the
delimiter between the option spec and the help text. So if a tab
character is placed between the option spec and the help text, it will
be interpreted as part of the long option name or as part of the arg
hint. If it is interpreted as part of the long option name, then
rev-parse will produce what will be interpreted as multiple arguments
on the command line.
For example, the following option spec (note: there is a <tab> between
"frotz" and "enable"):
frotz enable frotzing
will produce the following set expression when --frotz is used:
set -- --frotz --
instead of this:
set -- --frotz enable --
Mark t1502.2 as fixed.
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When searching for flag characters in the option spec, we should ensure
the search stays within the bounds of the option spec and does not enter
the help text portion of the spec. So when we find the boundary white
space marking the start of the help text, let's mark it with a nul
character. Then when we search for flag characters starting from the
beginning of the string we'll stop at the nul and won't enter the help
text.
Now, the following option spec:
exclame this does something!
will produce this 'set' expression when --exclame is specified:
set -- --exclame --
instead of this one:
set -- --exclame this does something --
Mark t1502.4 and t1502.5 as fixed.
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Unlike "git commit-tree < file", "git commit-tree -F file" did not
pass the contents of the file verbatim and instead completed an
incomplete line at the end, if exists. The latter has been updated
to match the behaviour of the former.
* rk/commit-tree-make-F-verbatim:
commit-tree: do not complete line in -F input
Many leaks of strbuf have been fixed.
* rs/strbuf-leakfix: (34 commits)
wt-status: release strbuf after use in wt_longstatus_print_tracking()
wt-status: release strbuf after use in read_rebase_todolist()
vcs-svn: release strbuf after use in end_revision()
utf8: release strbuf on error return in strbuf_utf8_replace()
userdiff: release strbuf after use in userdiff_get_textconv()
transport-helper: release strbuf after use in process_connect_service()
sequencer: release strbuf after use in save_head()
shortlog: release strbuf after use in insert_one_record()
sha1_file: release strbuf on error return in index_path()
send-pack: release strbuf on error return in send_pack()
remote: release strbuf after use in set_url()
remote: release strbuf after use in migrate_file()
remote: release strbuf after use in read_remote_branches()
refs: release strbuf on error return in write_pseudoref()
notes: release strbuf after use in notes_copy_from_stdin()
merge: release strbuf after use in write_merge_heads()
merge: release strbuf after use in save_state()
mailinfo: release strbuf on error return in handle_boundary()
mailinfo: release strbuf after use in handle_from()
help: release strbuf on error return in exec_woman_emacs()
...
As "git commit" to conclude a conflicted "git merge" honors the
commit-msg hook, "git merge" that recoreds a merge commit that
cleanly auto-merges should, but it didn't.
* sb/merge-commit-msg-hook:
builtin/merge: honor commit-msg hook for merges
Many of our programs consider that it is OK to release dynamic
storage that is used throughout the life of the program by simply
exiting, but this makes it harder to leak detection tools to avoid
reporting false positives. Plug many existing leaks and introduce
a mechanism for developers to mark that the region of memory
pointed by a pointer is not lost/leaking to help these tools.
* jk/leak-checkers:
add UNLEAK annotation for reducing leak false positives
set_git_dir: handle feeding gitdir to itself
repository: free fields before overwriting them
reset: free allocated tree buffers
reset: make tree counting less confusing
config: plug user_config leak
update-index: fix cache entry leak in add_one_file()
add: free leaked pathspec after add_files_to_cache()
test-lib: set LSAN_OPTIONS to abort by default
test-lib: --valgrind should not override --verbose-log
"git -c submodule.recurse=yes pull" did not work as if the
"--recurse-submodules" option was given from the command line.
This has been corrected.
* nm/pull-submodule-recurse-config:
pull: honor submodule.recurse config option
pull: fix cli and config option parsing order
Our hashmap implementation in hashmap.[ch] is not thread-safe when
adding a new item needs to expand the hashtable by rehashing; add
an API to disable the automatic rehashing to work it around.
* jh/hashmap-disable-counting:
hashmap: add API to disable item counting when threaded
The long-standing rule that an in-core lockfile instance, once it
is used, must not be freed, has been lifted and the lockfile and
tempfile APIs have been updated to reduce the chance of programming
errors.
* jk/incore-lockfile-removal:
stop leaking lock structs in some simple cases
ref_lock: stop leaking lock_files
lockfile: update lifetime requirements in documentation
tempfile: auto-allocate tempfiles on heap
tempfile: remove deactivated list entries
tempfile: use list.h for linked list
tempfile: release deactivated strbufs instead of resetting
tempfile: robustify cleanup handler
tempfile: factor out deactivation
tempfile: factor out activation
tempfile: replace die("BUG") with BUG()
tempfile: handle NULL tempfile pointers gracefully
tempfile: prefer is_tempfile_active to bare access
lockfile: do not rollback lock on failed close
tempfile: do not delete tempfile on failed close
always check return value of close_tempfile
verify_signed_buffer: prefer close_tempfile() to close()
setup_temporary_shallow: move tempfile struct into function
setup_temporary_shallow: avoid using inactive tempfile
write_index_as_tree: cleanup tempfile on error
Earlier in this codepath, we (ab)used "%<len>c" to read the hostname
recorded in the lockfile into locking_host[HOST_NAME_MAX + 1] while
substituting <len> with the actual value of HOST_NAME_MAX.
This turns out to be incorrect, as it is an instruction to read
exactly the specified number of bytes. Because we are trying to
read at most that many bytes, we should be using "%<len>s" instead.
Helped-by: A. Wilcox <awilfox@adelielinux.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
`git describe --match` with multiple patterns matches only first pattern.
If it fails, next patterns are not tried.
Fix it, add test cases and update existing test which has wrong
expectation.
Signed-off-by: Max Kirillov <max@max630.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The return value of write_in_full() is either "-1", or the
requested number of bytes[1]. If we make a partial write
before seeing an error, we still return -1, not a partial
value. This goes back to f6aa66cb95 (write_in_full: really
write in full or return error on disk full., 2007-01-11).
So checking anything except "was the return value negative"
is pointless. And there are a couple of reasons not to do
so:
1. It can do a funny signed/unsigned comparison. If your
"len" is signed (e.g., a size_t) then the compiler will
promote the "-1" to its unsigned variant.
This works out for "!= len" (unless you really were
trying to write the maximum size_t bytes), but is a
bug if you check "< len" (an example of which was fixed
recently in config.c).
We should avoid promoting the mental model that you
need to check the length at all, so that new sites are
not tempted to copy us.
2. Checking for a negative value is shorter to type,
especially when the length is an expression.
3. Linus says so. In d34cf19b89 (Clean up write_in_full()
users, 2007-01-11), right after the write_in_full()
semantics were changed, he wrote:
I really wish every "write_in_full()" user would just
check against "<0" now, but this fixes the nasty and
stupid ones.
Appeals to authority aside, this makes it clear that
writing it this way does not have an intentional
benefit. It's a historical curiosity that we never
bothered to clean up (and which was undoubtedly
cargo-culted into new sites).
So let's convert these obviously-correct cases (this
includes write_str_in_full(), which is just a wrapper for
write_in_full()).
[1] A careful reader may notice there is one way that
write_in_full() can return a different value. If we ask
write() to write N bytes and get a return value that is
_larger_ than N, we could return a larger total. But
besides the fact that this would imply a totally broken
version of write(), it would already invoke undefined
behavior. Our internal remaining counter is an unsigned
size_t, which means that subtracting too many byte will
wrap it around to a very large number. So we'll instantly
begin reading off the end of the buffer, trying to write
gigabytes (or petabytes) of data.
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We ask to write 41 bytes and make sure that the return value
is at least 41. This is the same "dangerous" pattern that
was fixed in the prior commit (wherein a negative return
value is promoted to unsigned), though it is not dangerous
here because our "41" is a constant, not an unsigned
variable.
But we should convert it anyway to avoid modeling a
dangerous construct.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The MRU cache that keeps track of recently used packs is represented
using two global variables:
struct mru packed_git_mru_storage;
struct mru *packed_git_mru = &packed_git_mru_storage;
Callers never assign to the packed_git_mru pointer, though, so we can
simplify by eliminating it and using &packed_git_mru_storage (renamed
to &packed_git_mru) directly. This variable is only used by the
packfile subsystem, making this a relatively uninvasive change (and
any new unadapted callers would trigger a compile error).
Noticed while moving these globals to the object_store struct.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the user tries to use '--help' option on an aliased command
information about the alias is printed as sshown below,
$ git co --help
`git co' is aliased to `checkout'
This doesn't seem correct as the user has aliased only 'co' and not
'git co'. This might even be incorrect in cases in which the user has
used an alias like 'tgit'.
$ tgit co --help
`git co' is aliased to `checkout'
So, make the message more precise.
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Message and doc updates.
* ma/up-to-date:
treewide: correct several "up-to-date" to "up to date"
Documentation/user-manual: update outdated example output
Killing "git merge --edit" before the editor returns control left
the repository in a state with MERGE_MSG but without MERGE_HEAD,
which incorrectly tells the subsequent "git commit" that there was
a squash merge in progress. This has been fixed.
* mg/killed-merge:
merge: save merge state earlier
merge: split write_merge_state in two
merge: clarify call chain
Documentation/git-merge: explain --continue
"git am -s" has been taught that some input may end with a trailer
block that is not Signed-off-by: and it should refrain from adding
an extra blank line before adding a new sign-off in such a case.
* pw/am-signoff:
am: fix signoff when other trailers are present
"git clone --recurse-submodules --quiet" did not pass the quiet
option down to submodules.
* bw/clone-recursive-quiet:
clone: teach recursive clones to respect -q
Commands like "git rebase" accepted the --rerere-autoupdate option
from the command line, but did not always use it. This has been
fixed.
* pw/sequence-rerere-autoupdate:
cherry-pick/revert: reject --rerere-autoupdate when continuing
cherry-pick/revert: remember --rerere-autoupdate
t3504: use test_commit
rebase -i: honor --rerere-autoupdate
rebase: honor --rerere-autoupdate
am: remember --rerere-autoupdate setting
"git push --recurse-submodules $there HEAD:$target" was not
propagated down to the submodules, but now it is.
* bw/push-options-recursively-to-submodules:
submodule--helper: teach push-check to handle HEAD
The "tag.pager" configuration variable was useless for those who
actually create tag objects, as it interfered with the use of an
editor. A new mechanism has been introduced for commands to enable
pager depending on what operation is being carried out to fix this,
and then "git tag -l" is made to run pager by default.
If this works out OK, I think there are low-hanging fruits in
other commands like "git branch" that outputs long list in one mode
while taking input in another.
* ma/pager-per-subcommand-action:
git.c: ignore pager.* when launching builtin as dashed external
tag: change default of `pager.tag` to "on"
tag: respect `pager.tag` in list-mode only
t7006: add tests for how git tag paginates
git.c: provide setup_auto_pager()
git.c: let builtins opt for handling `pager.foo` themselves
builtin.h: take over documentation from api-builtin.txt
"git log --tag=no-such-tag" showed log starting from HEAD, which
has been fixed---it now shows nothing.
* jk/rev-list-empty-input:
revision: do not fallback to default when rev_input_given is set
rev-list: don't show usage when we see empty ref patterns
revision: add rev_input_given flag
t6018: flesh out empty input/output rev-list tests
"git commit-tree -F <file>", unlike "cat <file> | git
commit-tree" (i.e. feeding the same contents from the standard
input), added a missing final newline when the input ended in an
incomplete line.
Correct this inconsistency by leaving the incomplete line as-is,
as erring on the side of not touching the input is preferrable
and expected for a plumbing command like "commit-tree".
Signed-off-by: Ross Kabus <rkabus@aerotech.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The original git-shortlog command parsed the output of
git-log, and the logic went something like this:
1. Read stdin looking for "author" lines.
2. Parse the identity into its name/email bits.
3. Apply mailmap to the name/email.
4. Reformat the identity into a single buffer that is our
"key" for grouping entries (either a name by default,
or "name <email>" if --email was given).
The first part happens in read_from_stdin(), and the other
three steps are part of insert_one_record().
When we do an internal traversal, we just swap out the stdin
read in step 1 for reading the commit objects ourselves.
Prior to 2db6b83d18 (shortlog: replace hand-parsing of
author with pretty-printer, 2016-01-18), that made sense; we
still had to parse the ident in the commit message.
But after that commit, we use pretty.c's "%an <%ae>" to get
the author ident (for simplicity). Which means that the
pretty printer is doing a parse/format under the hood, and
then we parse the result, apply the mailmap, and format the
result again.
Instead, we can just ask pretty.c to do all of those steps
for us (including the mailmap via "%aN <%aE>", and not
formatting the address when --email is missing).
And then we can push steps 2-4 into read_from_stdin(). This
speeds up "git shortlog -ns" on linux.git by about 3%, and
eliminates a leak in insert_one_record() of the namemailbuf
strbuf.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It's a common pattern in git commands to allocate some
memory that should last for the lifetime of the program and
then not bother to free it, relying on the OS to throw it
away.
This keeps the code simple, and it's fast (we don't waste
time traversing structures or calling free at the end of the
program). But it also triggers warnings from memory-leak
checkers like valgrind or LSAN. They know that the memory
was still allocated at program exit, but they don't know
_when_ the leaked memory stopped being useful. If it was
early in the program, then it's probably a real and
important leak. But if it was used right up until program
exit, it's not an interesting leak and we'd like to suppress
it so that we can see the real leaks.
This patch introduces an UNLEAK() macro that lets us do so.
To understand its design, let's first look at some of the
alternatives.
Unfortunately the suppression systems offered by
leak-checking tools don't quite do what we want. A
leak-checker basically knows two things:
1. Which blocks were allocated via malloc, and the
callstack during the allocation.
2. Which blocks were left un-freed at the end of the
program (and which are unreachable, but more on that
later).
Their suppressions work by mentioning the function or
callstack of a particular allocation, and marking it as OK
to leak. So imagine you have code like this:
int cmd_foo(...)
{
/* this allocates some memory */
char *p = some_function();
printf("%s", p);
return 0;
}
You can say "ignore allocations from some_function(),
they're not leaks". But that's not right. That function may
be called elsewhere, too, and we would potentially want to
know about those leaks.
So you can say "ignore the callstack when main calls
some_function". That works, but your annotations are
brittle. In this case it's only two functions, but you can
imagine that the actual allocation is much deeper. If any of
the intermediate code changes, you have to update the
suppression.
What we _really_ want to say is that "the value assigned to
p at the end of the function is not a real leak". But
leak-checkers can't understand that; they don't know about
"p" in the first place.
However, we can do something a little bit tricky if we make
some assumptions about how leak-checkers work. They
generally don't just report all un-freed blocks. That would
report even globals which are still accessible when the
leak-check is run. Instead they take some set of memory
(like BSS) as a root and mark it as "reachable". Then they
scan the reachable blocks for anything that looks like a
pointer to a malloc'd block, and consider that block
reachable. And then they scan those blocks, and so on,
transitively marking anything reachable from a global as
"not leaked" (or at least leaked in a different category).
So we can mark the value of "p" as reachable by putting it
into a variable with program lifetime. One way to do that is
to just mark "p" as static. But that actually affects the
run-time behavior if the function is called twice (you
aren't likely to call main() twice, but some of our cmd_*()
functions are called from other commands).
Instead, we can trick the leak-checker by putting the value
into _any_ reachable bytes. This patch keeps a global
linked-list of bytes copied from "unleaked" variables. That
list is reachable even at program exit, which confers
recursive reachability on whatever values we unleak.
In other words, you can do:
int cmd_foo(...)
{
char *p = some_function();
printf("%s", p);
UNLEAK(p);
return 0;
}
to annotate "p" and suppress the leak report.
But wait, couldn't we just say "free(p)"? In this toy
example, yes. But UNLEAK()'s byte-copying strategy has
several advantages over actually freeing the memory:
1. It's recursive across structures. In many cases our "p"
is not just a pointer, but a complex struct whose
fields may have been allocated by a sub-function. And
in some cases (e.g., dir_struct) we don't even have a
function which knows how to free all of the struct
members.
By marking the struct itself as reachable, that confers
reachability on any pointers it contains (including those
found in embedded structs, or reachable by walking
heap blocks recursively.
2. It works on cases where we're not sure if the value is
allocated or not. For example:
char *p = argc > 1 ? argv[1] : some_function();
It's safe to use UNLEAK(p) here, because it's not
freeing any memory. In the case that we're pointing to
argv here, the reachability checker will just ignore
our bytes.
3. Likewise, it works even if the variable has _already_
been freed. We're just copying the pointer bytes. If
the block has been freed, the leak-checker will skip
over those bytes as uninteresting.
4. Because it's not actually freeing memory, you can
UNLEAK() before we are finished accessing the variable.
This is helpful in cases like this:
char *p = some_function();
return another_function(p);
Writing this with free() requires:
int ret;
char *p = some_function();
ret = another_function(p);
free(p);
return ret;
But with unleak we can just write:
char *p = some_function();
UNLEAK(p);
return another_function(p);
This patch adds the UNLEAK() macro and enables it
automatically when Git is compiled with SANITIZE=leak. In
normal builds it's a noop, so we pay no runtime cost.
It also adds some UNLEAK() annotations to show off how the
feature works. On top of other recent leak fixes, these are
enough to get t0000 and t0001 to pass when compiled with
LSAN.
Note the case in commit.c which actually converts a
strbuf_release() into an UNLEAK. This code was already
non-leaky, but the free didn't do anything useful, since
we're exiting. Converting it to an annotation means that
non-leak-checking builds pay no runtime cost. The cost is
minimal enough that it's probably not worth going on a
crusade to convert these kinds of frees to UNLEAKS. I did it
here for consistency with the "sb" leak (though it would
have been equally correct to go the other way, and turn them
both into strbuf_release() calls).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Similar to 65969d43d1 (merge: honor prepare-commit-msg hook, 2011-02-14)
merge should also honor the commit-msg hook: When a merge is stopped due
to conflicts or --no-commit, the subsequent commit calls the commit-msg
hook. However, it is not called after a clean merge. Fix this
inconsistency by invoking the hook after clean merges as well.
This change is motivated by Gerrit's commit-msg hook to install a ChangeId
trailer into the commit message. Without such a ChangeId, Gerrit refuses
to accept any commit by default, such that the inconsistency of (not)
running the commit-msg hook between commit and merge leads to confusion
and might block people from getting their work done.
As the githooks man page is very vocal about the possibility of skipping
the commit-msg hook via the --no-verify option, implement the option
in merge, too.
'git merge --continue' is currently implemented as calling cmd_commit
with no further arguments. This works for most other merge related options,
such as demonstrated via the --allow-unrelated-histories flag in the
test. The --no-verify option however is not remembered across invocations
of git-merge. Originally the author assumed an alternative in which the
'git merge --continue' command accepts the --no-verify flag, but that
opens up the discussion which flags are allows to the continued merge
command and which must be given in the first invocation.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git pull" supports a --recurse-submodules option but does not parse the
submodule.recurse configuration item to set the default for that option.
Meanwhile "git fetch" does support submodule.recurse, producing
confusing behavior: when submodule.recurse is enabled, "git pull"
recursively fetches submodules but does not update them after fetch.
Handle submodule.recurse in "git pull" to fix this.
Reported-by: Magnus Homann <magnus@homann.se>
Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
pull parses first the cli options and then the config option.
The expected behavior is the other way around, so that config
options can not override the cli ones.
This patch changes the parsing order so config options are
parsed first.
Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@morey-chaisemartin.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is to address concerns raised by ThreadSanitizer on the mailing list
about threaded unprotected R/W access to map.size with my previous "disallow
rehash" change (0607e10009).
See:
https://public-inbox.org/git/adb37b70139fd1e2bac18bfd22c8b96683ae18eb.1502780344.git.martin.agren@gmail.com/
Add API to hashmap to disable item counting and thus automatic rehashing.
Also include API to later re-enable them.
When item counting is disabled, the map.size field is invalid. So to
prevent accidents, the field has been renamed and an accessor function
hashmap_get_size() has been added. All direct references to this
field have been been updated. And the name of the field changed
to map.private_size to communicate this.
Here is the relevant output from ThreadSanitizer showing the problem:
WARNING: ThreadSanitizer: data race (pid=10554)
Read of size 4 at 0x00000082d488 by thread T2 (mutexes: write M16):
#0 hashmap_add hashmap.c:209
#1 hash_dir_entry_with_parent_and_prefix name-hash.c:302
#2 handle_range_dir name-hash.c:347
#3 handle_range_1 name-hash.c:415
#4 lazy_dir_thread_proc name-hash.c:471
#5 <null> <null>
Previous write of size 4 at 0x00000082d488 by thread T1 (mutexes: write M31):
#0 hashmap_add hashmap.c:209
#1 hash_dir_entry_with_parent_and_prefix name-hash.c:302
#2 handle_range_dir name-hash.c:347
#3 handle_range_1 name-hash.c:415
#4 handle_range_dir name-hash.c:380
#5 handle_range_1 name-hash.c:415
#6 lazy_dir_thread_proc name-hash.c:471
#7 <null> <null>
Martin gives instructions for running TSan on test t3008 in this post:
https://public-inbox.org/git/CAN0heSoJDL9pWELD6ciLTmWf-a=oyxe4EXXOmCKvsG5MSuzxsA@mail.gmail.com/
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Don't reset the strbufs l2 and l3 before use as if they were static, but
release them at the end instead.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Using for_each_ref_in() with a full refname has always been
a questionable practice, but it became an error with
b9c8e7f2fb (prefix_ref_iterator: don't trim too much,
2017-05-22), making "git rev-parse --bisect" pretty reliably
show a BUG.
Commit 03df567fbf (for_each_bisect_ref(): don't trim
refnames, 2017-06-18) fixed this case for revision.c, but
rev-parse handles this option on its own. We can use the
same solution here (and piggy-back on its test).
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We read the tree objects with fill_tree_descriptor(), but
never actually free the resulting buffers, causing a memory
leak. This isn't a huge deal because we call this code at
most twice per program invocation. But it does potentially
double our heap usage if you have large root trees. Let's
free the trees before returning.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Depending on whether we're in --keep mode, git-reset may
feed one or two trees to unpack_trees(). We start a counter
at "1" and then increment it to "2" only for the two-tree
case. But that means we must always subtract one to find the
correct array slot to fill with each descriptor.
Instead, let's start at "0" and just increment our counter
after adding each tree. This skips the extra subtraction,
and will make things much easier when we start to actually
free our tree buffers.
While we're at it, let's make the first allocation use the
slot at "desc + nr", too, even though we know "nr" is 0 at
that point. It makes the two fill_tree_descriptor() calls
consistent (always "desc + nr", followed by always
incrementing "nr").
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We generate filenames for the user_config ("~/.gitconfig")
and the xdg config ("$XDG_CONFIG_HOME/git/config") and then
decide which to use by looking at the filesystem. But after
selecting one, the unused string is just leaked.
This is a tiny leak, but it creates noise in leak-checker
output.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we fail to add the cache entry to the index, we end up
just leaking the struct. We should follow the pattern of the
early-return above and free it.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After run_diff_files, we throw away the rev_info struct,
including the pathspec that we copied into it, leaking the
memory. this is probably not a big deal in practice. We
usually only run this once per process, and the leak is
proportional to the pathspec list we're already holding in
memory.
But it's still a leak, and it pollutes leak-checker output,
making it harder to find important leaks.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that it's safe to declare a "struct lock_file" on the
stack, we can do so (and avoid an intentional leak). These
leaks were found by running t0000 and t0001 under valgrind
(though certainly other similar leaks exist and just don't
happen to be exercised by those tests).
Initializing the lock_file's inner tempfile with NULL is not
strictly necessary in these cases, but it's a good practice
to model. It means that if we were to call a function like
rollback_lock_file() on a lock that was never taken in the
first place, it becomes a quiet noop (rather than undefined
behavior).
Likewise, it's always safe to rollback_lock_file() on a file
that has already been committed or deleted, since that
operation is a noop on an inactive lockfile (and that's why
the case in config.c can drop the "if (lock)" check as we
move away from using a pointer).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous commit taught the tempfile code to give up
ownership over tempfiles that have been renamed or deleted.
That makes it possible to use a stack variable like this:
struct tempfile t;
create_tempfile(&t, ...);
...
if (!err)
rename_tempfile(&t, ...);
else
delete_tempfile(&t);
But doing it this way has a high potential for creating
memory errors. The tempfile we pass to create_tempfile()
ends up on a global linked list, and it's not safe for it to
go out of scope until we've called one of those two
deactivation functions.
Imagine that we add an early return from the function that
forgets to call delete_tempfile(). With a static or heap
tempfile variable, the worst case is that the tempfile hangs
around until the program exits (and some functions like
setup_shallow_temporary rely on this intentionally, creating
a tempfile and then leaving it for later cleanup).
But with a stack variable as above, this is a serious memory
error: the variable goes out of scope and may be filled with
garbage by the time the tempfile code looks at it. Let's
see if we can make it harder to get this wrong.
Since many callers need to allocate arbitrary numbers of
tempfiles, we can't rely on static storage as a general
solution. So we need to turn to the heap. We could just ask
all callers to pass us a heap variable, but that puts the
burden on them to call free() at the right time.
Instead, let's have the tempfile code handle the heap
allocation _and_ the deallocation (when the tempfile is
deactivated and removed from the list).
This changes the return value of all of the creation
functions. For the cleanup functions (delete and rename),
we'll add one extra bit of safety: instead of taking a
tempfile pointer, we'll take a pointer-to-pointer and set it
to NULL after freeing the object. This makes it safe to
double-call functions like delete_tempfile(), as the second
call treats the NULL input as a noop. Several callsites
follow this pattern.
The resulting patch does have a fair bit of noise, as each
caller needs to be converted to handle:
1. Storing a pointer instead of the struct itself.
2. Passing the pointer instead of taking the struct
address.
3. Handling a "struct tempfile *" return instead of a file
descriptor.
We could play games to make this less noisy. For example, by
defining the tempfile like this:
struct tempfile {
struct heap_allocated_part_of_tempfile {
int fd;
...etc
} *actual_data;
}
Callers would continue to have a "struct tempfile", and it
would be "active" only when the inner pointer was non-NULL.
But that just makes things more awkward in the long run.
There aren't that many callers, so we can simply bite
the bullet and adjust all of them. And the compiler makes it
easy for us to find them all.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Conversion from uchar[20] to struct object_id continues; this is to
ensure that we do not assume sizeof(struct object_id) is the same
as the length of SHA-1 hash (or length of longest hash we support).
* po/read-graft-line:
commit: rewrite read_graft_line
commit: allocate array using object_id size
commit: replace the raw buffer with strbuf in read_graft_line
sha1_file: fix definition of null_sha1
"branch --set-upstream" that has been deprecated in Git 1.8 has
finally been retired.
* ks/branch-set-upstream:
branch: quote branch/ref names to improve readability
builtin/branch: stop supporting the "--set-upstream" option
t3200: cleanup cruft of a test
Earlier, dddbad728c ("timestamp_t: a new data type for timestamps",
2017-04-26) changed several types to timestamp_t.
5589e87fd8 ("name-rev: change a "long" variable to timestamp_t",
2017-05-20) cleaned up a missed variable, but both missed a _MAX
constant.
Change the remaining constant to the one appropriate for the current
type
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Killing "git merge --edit" before the editor returns control left
the repository in a state with MERGE_MSG but without MERGE_HEAD,
which incorrectly tells the subsequent "git commit" that there was
a squash merge in progress. This has been fixed.
* mg/killed-merge:
merge: save merge state earlier
merge: split write_merge_state in two
merge: clarify call chain
Documentation/git-merge: explain --continue
Code clean-up to avoid mixing values read from the .gitmodules file
and values read from the .git/config file.
* bw/submodule-config-cleanup:
submodule: remove gitmodules_config
unpack-trees: improve loading of .gitmodules
submodule-config: lazy-load a repository's .gitmodules file
submodule-config: move submodule-config functions to submodule-config.c
submodule-config: remove support for overlaying repository config
diff: stop allowing diff to have submodules configured in .git/config
submodule: remove submodule_config callback routine
unpack-trees: don't respect submodule.update
submodule: don't rely on overlayed config when setting diffopts
fetch: don't overlay config with submodule-config
submodule--helper: don't overlay config in update-clone
submodule--helper: don't overlay config in remote_submodule_branch
add, reset: ensure submodules can be added or reset
submodule: don't use submodule_from_name
t7411: check configuration parsing errors
"git interpret-trailers" has been taught a "--parse" and a few
other options to make it easier for scripts to grab existing
trailer lines from a commit log message.
* jk/trailers-parse:
doc/interpret-trailers: fix "the this" typo
pretty: support normalization options for %(trailers)
t4205: refactor %(trailers) tests
pretty: move trailer formatting to trailer.c
interpret-trailers: add --parse convenience option
interpret-trailers: add an option to unfold values
interpret-trailers: add an option to show only existing trailers
interpret-trailers: add an option to show only the trailers
trailer: put process_trailers() options into a struct
"git interpret-trailers" learned to take the trailer specifications
from the command line that overrides the configured values.
* pb/trailers-from-command-line:
interpret-trailers: fix documentation typo
interpret-trailers: add options for actions
trailers: introduce struct new_trailer_item
trailers: export action enums and corresponding lookup functions
The function close_pack_fd() needs to be temporarily made global. Its
scope will be restored to static in a subsequent commit.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
alloc_packed_git() in packfile.c is duplicated from sha1_file.c. In a
subsequent commit, alloc_packed_git() will be removed from sha1_file.c.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, sha1_file.c and cache.h contain many functions, both related
to and unrelated to packfiles. This makes both files very large and
causes an unclear separation of concerns.
Create a new file, packfile.c, to hold all packfile-related functions
currently in sha1_file.c. It has a corresponding header packfile.h.
In this commit, the pack name-related functions are moved. Subsequent
commits will move the other functions.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Code cleanup.
* jt/subprocess-handshake:
sub-process: refactor handshake to common function
Documentation: migrate sub-process docs to header
convert: add "status=delayed" to filter process protocol
convert: refactor capabilities negotiation
convert: move multiple file filter error handling to separate function
convert: put the flags field before the flag itself for consistent style
t0021: write "OUT <size>" only on success
t0021: make debug log file name configurable
t0021: keep filter log files on comparison
Code clean-up.
* rs/move-array:
ls-files: don't try to prune an empty index
apply: use COPY_ARRAY and MOVE_ARRAY in update_image()
use MOVE_ARRAY
add MOVE_ARRAY
"git commit" when seeing an totally empty message said "you did not
edit the message", which is clearly wrong. The message has been
corrected.
* ks/commit-abort-on-empty-message-fix:
commit: check for empty message before the check for untouched template
Numerous bugs in walking of reflogs via "log -g" and friends have
been fixed.
* jk/reflog-walk:
reflog-walk: apply --since/--until to reflog dates
reflog-walk: stop using fake parents
rev-list: check reflog_info before showing usage
get_revision_1(): replace do-while with an early return
log: do not free parents when walking reflog
log: clarify comment about reflog cycles
revision: disallow reflog walking with revs->limited
t1414: document some reflog-walk oddities
"%C(color name)" in the pretty print format always produced ANSI
color escape codes, which was an early design mistake. They now
honor the configuration (e.g. "color.ui = never") and also tty-ness
of the output medium.
* jk/ref-filter-colors:
ref-filter: consult want_color() before emitting colors
pretty: respect color settings for %C placeholders
rev-list: pass diffopt->use_colors through to pretty-print
for-each-ref: load config earlier
color: check color.ui in git_default_config()
ref-filter: pass ref_format struct to atom parsers
ref-filter: factor out the parsing of sorting atoms
ref-filter: make parse_ref_filter_atom a private function
ref-filter: provide a function for parsing sort options
ref-filter: move need_color_reset_at_eol into ref_format
ref-filter: abstract ref format into its own struct
ref-filter: simplify automatic color reset
t: use test_decode_color rather than literal ANSI codes
docs/for-each-ref: update pointer to color syntax
check return value of verify_ref_format()
"git commit" used to discard the index and re-read from the filesystem
just in case the pre-commit hook has updated it in the middle; this
has been optimized out when we know we do not run the pre-commit hook.
* kw/commit-keep-index-when-pre-commit-is-not-run:
commit: skip discarding the index if there is no pre-commit hook
"git rebase", especially when it is run by mistake and ends up
trying to replay many changes, spent long time in silence. The
command has been taught to show progress report when it spends
long time preparing these many changes to replay (which would give
the user a chance to abort with ^C).
* kw/rebase-progress:
rebase: turn on progress option by default for format-patch
format-patch: have progress option while generating patches
Follow the Oxford style, which says to use "up-to-date" before the noun,
but "up to date" after it. Don't change plumbing (specifically
send-pack.c, but transport.c (git push) also has the same string).
This was produced by grepping for "up-to-date" and "up to date". It
turned out we only had to edit in one direction, removing the hyphens.
Fix a typo in Documentation/git-diff-index.txt while we're there.
Reported-by: Jeffrey Manian <jeffrey.manian@gmail.com>
Reported-by: STEVEN WHITE <stevencharleswhitevoices@gmail.com>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the `git merge` process is killed while waiting for the editor to
finish, the merge state is lost but the prepared merge msg and tree is kept.
So, a subsequent `git commit` creates a squashed merge even when the
user asked for proper merge commit originally.
Demonstrate the problem with a test crafted after the in t7502. The test
requires EXECKEEPSPID (thus does not run under MINGW).
Save the merge state earlier (in the non-squash case) so that it does
not get lost. This makes the test pass.
Reported-by: hIpPy <hippy2981@gmail.com>
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
write_merge_state() writes out the merge heads, mode, and msg. But we
may want to write out heads, mode without the msg. So, split out heads
(+mode) into a separate function write_merge_heads() that is called by
write_merge_state().
No funtional change so far, except when these non-atomic writes are
interrupted: we write heads-mode-msg now when we used to write
heads-msg-mode.
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
prepare_to_commit() cannot be reached in the non-squash case:
It is called by merge_trivial() and finish_automerge() only, but the
calls to the latter are somewhat hard to track:
If option_commit is not set, the code in cmd_merge() uses a fake
conflict return code (ret=1) to avoid writing the tree, which also
avoids setting automerge_was_ok (just as in the proper ret==1 case), so
that finish_automerge() is not called.
To ensure that no code change breaks that assumption, safe-guard
prepare_to_commit() by a BUG() statement.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When checking the conditional of "while (me->remaining)", we did not
hold the lock. Calling find_deltas would still be safe, since it checks
"remaining" (after taking the lock) and is able to handle all values. In
fact, this could (currently) not trigger any bug: a bug could happen if
`remaining` transitioning from zero to non-zero races with the evaluation
of the while-condition, but these are always separated by the
data_ready-mechanism.
Make sure we have the lock when we read `remaining`. This does mean we
release it just so that find_deltas can take it immediately again. We
could tweak the contract so that the lock should be taken before calling
find_deltas, but let's defer that until someone can actually show that
"unlock+lock" has a measurable negative impact.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git am -s" has been taught that some input may end with a trailer
block that is not Signed-off-by: and it should refrain from adding
an extra blank line before adding a new sign-off in such a case.
* pw/am-signoff:
am: fix signoff when other trailers are present
Code clean-up.
* ma/parse-maybe-bool:
parse_decoration_style: drop unused argument `var`
treewide: deprecate git_config_maybe_bool, use git_parse_maybe_bool
config: make git_{config,parse}_maybe_bool equivalent
config: introduce git_parse_maybe_bool_text
t5334: document that git push --signed=1 does not work
Doc/git-{push,send-pack}: correct --sign= to --signed=
"git clone --recurse-submodules --quiet" did not pass the quiet
option down to submodules.
* bw/clone-recursive-quiet:
clone: teach recursive clones to respect -q
"git grep --recurse-submodules" has been reworked to give a more
consistent output across submodule boundary (and do its thing
without having to fork a separate process).
* bw/grep-recurse-submodules:
grep: recurse in-process using 'struct repository'
submodule: merge repo_read_gitmodules and gitmodules_config
submodule: check for unmerged .gitmodules outside of config parsing
submodule: check for unstaged .gitmodules outside of config parsing
submodule: remove fetch.recursesubmodules from submodule-config parsing
submodule: remove submodule.fetchjobs from submodule-config parsing
config: add config_from_gitmodules
cache.h: add GITMODULES_FILE macro
repository: have the_repository use the_index
repo_read_index: don't discard the index
Commands like "git rebase" accepted the --rerere-autoupdate option
from the command line, but did not always use it. This has been
fixed.
* pw/sequence-rerere-autoupdate:
cherry-pick/revert: reject --rerere-autoupdate when continuing
cherry-pick/revert: remember --rerere-autoupdate
t3504: use test_commit
rebase -i: honor --rerere-autoupdate
rebase: honor --rerere-autoupdate
am: remember --rerere-autoupdate setting
"git push --recurse-submodules $there HEAD:$target" was not
propagated down to the submodules, but now it is.
* bw/push-options-recursively-to-submodules:
submodule--helper: teach push-check to handle HEAD
We used to expose the full power of the delayed progress API to the
callers, so that they can specify, not just the message to show and
expected total amount of work that is used to compute the percentage
of work performed so far, the percent-threshold parameter P and the
delay-seconds parameter N. The progress meter starts to show at N
seconds into the operation only if we have not yet completed P per-cent
of the total work.
Most callers used either (0%, 2s) or (50%, 1s) as (P, N), but there
are oddballs that chose more random-looking values like 95%.
For a smoother workload, (50%, 1s) would allow us to start showing
the progress meter earlier than (0%, 2s), while keeping the chance
of not showing progress meter for long running operation the same as
the latter. For a task that would take 2s or more to complete, it
is likely that less than half of it would complete within the first
second, if the workload is smooth. But for a spiky workload whose
earlier part is easier, such a setting is likely to fail to show the
progress meter entirely and (0%, 2s) is more appropriate.
But that is merely a theory. Realistically, it is of dubious value
to ask each codepath to carefully consider smoothness of their
workload and specify their own setting by passing two extra
parameters. Let's simplify the API by dropping both parameters and
have everybody use (0%, 2s).
Oh, by the way, the percent-threshold parameter and the structure
member were consistently misspelled, which also is now fixed ;-)
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This simplifies function declaration and allows for use of strbuf_rtrim
instead of modifying buffer directly.
Signed-off-by: Patryk Obara <patryk.obara@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The '--set-upstream' option of branch was deprecated in b347d06b
("branch: deprecate --set-upstream and show help if we detect
possible mistaken use", 2012-08-30) and has been planned for removal
ever since.
In order to prevent "--set-upstream" on a command line from being taken as
an abbreviated form of "--set-upstream-to", explicitly catch "--set-upstream"
option and die, instead of just removing it from the list of options.
Before this change, an attempt to use "--set-upstream" resulted in:
$ git branch
* master
$ git branch --set-upstream origin/master
The --set-upstream flag is deprecated and will be removed. Consider using --track or --set-upstream-to
Branch origin/master set up to track local branch master.
$ echo $?
0
$ git branch
* master
origin/master
With this change, the behaviour becomes like this:
$ git branch
* master
$ git branch --set-upstream origin/master
fatal: the '--set-upstream' option is no longer supported. Please use '--track' or '--set-upstream-to' instead.
$ echo $?
128
$ git branch
* master
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If there is not a pre-commit hook, there is no reason to discard
the index and reread it.
This change checks to presence of a pre-commit hook and then only
discards the index if there was one.
Signed-off-by: Kevin Willford <kewillf@microsoft.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The last few commits have added command line options that
can turn interpret-trailers into a parsing tool. Since
they'd most often be used together, let's provide a
convenient single option for callers to invoke this mode.
This is implemented as a callback rather than a boolean so
that its effect is applied immediately, as if those options
had been specified. Later options can then override them.
E.g.:
git interpret-trailers --parse --no-unfold
would work.
Let's also update the documentation to make clear that this
parsing mode behaves quite differently than the normal
"add trailers to the input" mode.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The point of "--only-trailers" is to give a caller an output
that's easy for them to parse. Getting rid of the
non-trailer material helps, but we still may see more
complicated syntax like whitespace continuation. Let's add
an option to unfold any continuation, giving the output as a
single "key: value" line per trailer.
As a bonus, this could be used even without --only-trailers
to clean up unusual formatting in the incoming data.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It can be useful to invoke interpret-trailers for the
primary purpose of parsing existing trailers. But in that
case, we don't want to apply existing ifMissing or ifExists
rules from the config. Let's add a special mode where we
avoid applying those rules. Coupled with --only-trailers,
this gives us a reasonable parsing tool.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In theory it's easy for any reader who wants to parse
trailers to do so. But there are a lot of subtle corner
cases around what counts as a trailer, when the trailer
block begins and ends, etc. Since interpret-trailers already
has our parsing logic, let's let callers ask it to just
output the trailers.
They still have to parse the "key: value" lines, but at
least they can ignore all of the other corner cases.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When generating patches for the rebase command, if the user does
not realize the branch they are rebasing onto is thousands of
commits different, there is no progress indication after initial
rewinding message.
The progress meter as presented in this patch assumes the thousands of
patches to have a fine granularity as well as assuming to require all
the same amount of work/time for each, such that a steady progress bar
is achieved.
We do not want to estimate the time for each patch based e.g.
on their size or number of touched files (or parents) as that is too
expensive for just a progress meter.
This patch allows a progress option to be passed to format-patch
so that the user can be informed the progress of generating the
patch. This option is then used by the rebase command when
calling format-patch.
Signed-off-by: Kevin Willford <kewillf@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
All callers of fill_tree_descriptor() have been converted to object_id
already, so convert that function as well. As a nice side-effect we get
rid of NULL checks in tree-diff.c, as fill_tree_descriptor() already
does them for us.
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allow using non-default values for trailers without having to set
them up in .gitconfig first. For example, if you have the following
configuration
trailer.signed-off-by.where = end
you may use "--where before" when a patch author forgets his
Signed-off-by and provides it in a separate email. Likewise for
--if-exists and --if-missing
Reverting to the behavior specified by .gitconfig is done with
--no-where, --no-if-exists and --no-if-missing.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This will provide a place to store the current state of the
--where, --if-exists and --if-missing options.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "tag.pager" configuration variable was useless for those who
actually create tag objects, as it interfered with the use of an
editor. A new mechanism has been introduced for commands to enable
pager depending on what operation is being carried out to fix this,
and then "git tag -l" is made to run pager by default.
* ma/pager-per-subcommand-action:
git.c: ignore pager.* when launching builtin as dashed external
tag: change default of `pager.tag` to "on"
tag: respect `pager.tag` in list-mode only
t7006: add tests for how git tag paginates
git.c: provide setup_auto_pager()
git.c: let builtins opt for handling `pager.foo` themselves
builtin.h: take over documentation from api-builtin.txt
"git log --tag=no-such-tag" showed log starting from HEAD, which
has been fixed---it now shows nothing.
* jk/rev-list-empty-input:
revision: do not fallback to default when rev_input_given is set
rev-list: don't show usage when we see empty ref patterns
revision: add rev_input_given flag
t6018: flesh out empty input/output rev-list tests
"git commit" when seeing an totally empty message said "you did not
edit the message", which is clearly wrong. The message has been
corrected.
* ks/commit-abort-on-empty-message-fix:
commit: check for empty message before the check for untouched template
Many uses of comparision callback function the hashmap API uses
cast the callback function type when registering it to
hashmap_init(), which defeats the compile time type checking when
the callback interface changes (e.g. gaining more parameters).
The callback implementations have been updated to take "void *"
pointers and cast them to the type they expect instead.
* sb/hashmap-cleanup:
t/helper/test-hashmap: use custom data instead of duplicate cmp functions
name-hash.c: drop hashmap_cmp_fn cast
submodule-config.c: drop hashmap_cmp_fn cast
remote.c: drop hashmap_cmp_fn cast
patch-ids.c: drop hashmap_cmp_fn cast
convert/sub-process: drop cast to hashmap_cmp_fn
config.c: drop hashmap_cmp_fn cast
builtin/describe: drop hashmap_cmp_fn cast
builtin/difftool.c: drop hashmap_cmp_fn cast
attr.c: drop hashmap_cmp_fn cast
Numerous bugs in walking of reflogs via "log -g" and friends have
been fixed.
* jk/reflog-walk:
reflog-walk: apply --since/--until to reflog dates
reflog-walk: stop using fake parents
rev-list: check reflog_info before showing usage
get_revision_1(): replace do-while with an early return
log: do not free parents when walking reflog
log: clarify comment about reflog cycles
revision: disallow reflog walking with revs->limited
t1414: document some reflog-walk oddities
The filter-process interface learned to allow a process with long
latency give a "delayed" response.
* ls/filter-process-delayed:
convert: add "status=delayed" to filter process protocol
convert: refactor capabilities negotiation
convert: move multiple file filter error handling to separate function
convert: put the flags field before the flag itself for consistent style
t0021: write "OUT <size>" only on success
t0021: make debug log file name configurable
t0021: keep filter log files on comparison
Start using selected c99 constructs in small, stable and
essentialpart of the system to catch people who care about
older compilers that do not grok them.
* jk/c99:
clean.c: use designated initializer
strbuf: use designated initializers in STRBUF_INIT
"%C(color name)" in the pretty print format always produced ANSI
color escape codes, which was an early design mistake. They now
honor the configuration (e.g. "color.ui = never") and also tty-ness
of the output medium.
* jk/ref-filter-colors:
ref-filter: consult want_color() before emitting colors
pretty: respect color settings for %C placeholders
rev-list: pass diffopt->use_colors through to pretty-print
for-each-ref: load config earlier
color: check color.ui in git_default_config()
ref-filter: pass ref_format struct to atom parsers
ref-filter: factor out the parsing of sorting atoms
ref-filter: make parse_ref_filter_atom a private function
ref-filter: provide a function for parsing sort options
ref-filter: move need_color_reset_at_eol into ref_format
ref-filter: abstract ref format into its own struct
ref-filter: simplify automatic color reset
t: use test_decode_color rather than literal ANSI codes
docs/for-each-ref: update pointer to color syntax
check return value of verify_ref_format()
Code clean-up.
* rs/move-array:
ls-files: don't try to prune an empty index
apply: use COPY_ARRAY and MOVE_ARRAY in update_image()
use MOVE_ARRAY
add MOVE_ARRAY
Conversion from uchar[20] to struct object_id continues.
* bc/object-id:
sha1_name: convert uses of 40 to GIT_SHA1_HEXSZ
sha1_name: convert GET_SHA1* flags to GET_OID*
sha1_name: convert get_sha1* to get_oid*
Convert remaining callers of get_sha1 to get_oid.
builtin/unpack-file: convert to struct object_id
bisect: convert bisect_checkout to struct object_id
builtin/update_ref: convert to struct object_id
sequencer: convert to struct object_id
remote: convert struct push_cas to struct object_id
submodule: convert submodule config lookup to use object_id
builtin/merge-tree: convert remaining caller of get_sha1 to object_id
builtin/fsck: convert remaining caller of get_sha1 to object_id
Conversion from uchar[20] to struct object_id continues.
* sb/object-id:
tag: convert gpg_verify_tag to use struct object_id
commit: convert lookup_commit_graft to struct object_id
Move the code for releasing tree buffers and commit buffers in
fsck_obj() to the end of the function and make sure it's executed no
matter of an error is encountered or not.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Get rid of a magic string length constant by using skip_prefix() instead
of starts_with().
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We already have two options and are about to add a few more.
To avoid having a huge number of boolean arguments, let's
convert to an options struct which can be passed in.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In addition to adding the missing newline, add the x-ecutable bit
'mode change' character to the error message. This message now has
the same form as similar messages output by 'update-index'.
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If there was no 'Signed-off-by:' trailer but another trailer such as
'Reported-by:' then 'git am --signoff' would add a blank line between
the existing trailers and the added 'Signed-off-by:' line. e.g.
Rebase accepts '--rerere-autoupdate' as an option but only honors
it if '-m' is also given. Fix it for a non-interactive rebase by
passing on the option to 'git am' and 'git cherry-pick'.
Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Fix by using the code provided for this purpose in sequencer.c.
Change the tests so that they check the formatting of the
'Signed-off-by:' lines rather than just grepping for them.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The only difference between these is that the former takes an argument
`name` which it ignores completely. Still, the callers are quite careful
to provide reasonable values for it.
Once in-flight topics have landed, we should be able to remove
git_config_maybe_bool. In the meantime, document it as deprecated in the
technical documentation. While at it, document git_parse_maybe_bool.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach 'git clone --recurse-submodules' to respect the '-q' option by
passing down the quiet flag to the process which handles cloning of
submodules.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that the submodule-config subsystem can lazily read the gitmodules
file we no longer need to explicitly pre-read the gitmodules by calling
'gitmodules_config()' so let's remove it.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In order to use the submodule-config subsystem, callers first need to
initialize it by calling 'repo_read_gitmodules()' or
'gitmodules_config()' (which just redirects to
'repo_read_gitmodules()'). There are a couple of callers who need to
load an explicit revision of the repository's .gitmodules file (grep) or
need to modify the .gitmodules file so they would need to load it before
modify the file (checkout), but the majority of callers are simply
reading the .gitmodules file present in the working tree. For the
common case it would be nice to avoid the boilerplate of initializing
the submodule-config system before using it, so instead let's perform
lazy-loading of the submodule-config system.
Remove the calls to reading the gitmodules file from ls-files to show
that lazy-loading the .gitmodules file works.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Migrate the functions used to initialize the submodule-config to
submodule-config.c so that the callback routine used in the
initialization process can be static and prevent it from being used
outside of initializing the submodule-config through the main API.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove the last remaining caller of 'submodule_config()' as well as the
function itself.
With 'submodule_config()' being removed the submodule-config API can be
a little simpler as callers don't need to worry about whether or not
they need to overlay the repository's config on top of the
submodule-config. This also makes it more difficult to accidentally
add non-submodule specific configuration to the .gitmodules file.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The 'submodule.update' config was historically used and respected by the
'submodule update' command because update handled a variety of different
ways it updated a submodule. As we begin teaching other commands about
submodules it makes more sense for the different settings of
'submodule.update' to be handled by the individual commands themselves
(checkout, rebase, merge, etc) so it shouldn't be respected by the
native checkout command.
Also remove the overlaying of the repository's config (via using
'submodule_config()') from the commands which use the unpack-trees
logic (checkout, read-tree, reset).
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Don't rely on overlaying the repository's config on top of the
submodule-config, instead query the repository's config directly for the
fetch_recurse field.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Don't rely on overlaying the repository's config on top of the
submodule-config, instead query the repository's config directly for the
url and the update strategy configuration.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Don't rely on overlaying the repository's config on top of the
submodule-config, instead query the repository's config directly for the
branch field.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous patch taught `git tag` to only respect `pager.tag` in
list-mode. That patch left the default value of `pager.tag` at "off".
After that patch, it makes sense to let the default value be "on"
instead, since it will help with listing many tags, but will not hurt
users of `git tag -a` as it would have before. Make that change. Update
documentation and tests.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Using, e.g., `git -c pager.tag tag -a new-tag` results in errors such as
"Vim: Warning: Output is not to a terminal" and a garbled terminal.
Someone who makes use of both `git tag -a` and `git tag -l` will
probably not set `pager.tag`, so that `git tag -a` will actually work,
at the cost of not paging output of `git tag -l`.
Use the mechanisms introduced in two earlier patches to ignore
`pager.tag` in git.c and let the `git tag` builtin handle it on its own.
Only respect `pager.tag` when running in list-mode.
There is a window between where the pager is started before and after
this patch. This means that early errors can behave slightly different
before and after this patch. Since operation-parsing has to happen
inside this window, this can be seen with `git -c pager.tag="echo pager
is used" tag -l --unknown-option`. This change in paging-behavior should
be acceptable since it only affects erroneous usages.
Update the documentation and update tests.
If an alias is used to run `git tag -a`, then `pager.tag` will still be
respected. Document this known breakage. It will be fixed in a later
commit. Add a similar test for `-l`, which works.
Noticed-by: Anatoly Borodin <anatoly.borodin@gmail.com>
Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the user gives us no starting point for a traversal, we
want to complain with our normal usage message. But if they
tried to do so with "--all" or "--glob", but that happened
not to match any refs, the usage message isn't helpful. We
should just give them the empty output they asked for
instead.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
cherry-pick and revert should not accept --[no-]rerere-autoupdate once
they have started.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Save the rerere-autoupdate setting so that it is remembered after
stopping for the user to resolve conflicts.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit aee9c7d65 (Submodules: Add the new "ignore" config option for
diff and status) introduced the ignore configuration option for
submodules so that configured submodules could be omitted from the
status and diff commands. Because this flag is respected in the diff
machinery it has the unintended consequence of potentially prohibiting
users from adding or resetting a submodule, even when a path to the
submodule is explicitly given.
Ensure that submodules can be added or set, even if they are configured
to be ignored, by setting the `DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG` diff
flag.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* bc/object-id:
sha1_name: convert uses of 40 to GIT_SHA1_HEXSZ
sha1_name: convert GET_SHA1* flags to GET_OID*
sha1_name: convert get_sha1* to get_oid*
Convert remaining callers of get_sha1 to get_oid.
builtin/unpack-file: convert to struct object_id
bisect: convert bisect_checkout to struct object_id
builtin/update_ref: convert to struct object_id
sequencer: convert to struct object_id
remote: convert struct push_cas to struct object_id
submodule: convert submodule config lookup to use object_id
builtin/merge-tree: convert remaining caller of get_sha1 to object_id
builtin/fsck: convert remaining caller of get_sha1 to object_id
tag: convert gpg_verify_tag to use struct object_id
commit: convert lookup_commit_graft to struct object_id
* bw/grep-recurse-submodules:
grep: recurse in-process using 'struct repository'
submodule: merge repo_read_gitmodules and gitmodules_config
submodule: check for unmerged .gitmodules outside of config parsing
submodule: check for unstaged .gitmodules outside of config parsing
submodule: remove fetch.recursesubmodules from submodule-config parsing
submodule: remove submodule.fetchjobs from submodule-config parsing
config: add config_from_gitmodules
cache.h: add GITMODULES_FILE macro
repository: have the_repository use the_index
repo_read_index: don't discard the index
Convert grep to use 'struct repository' which enables recursing into
submodules to be handled in-process.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach 'is_staging_gitmodules_ok()' to be able to determine in the
'.gitmodules' file has unstaged changes based on the passed in index
instead of relying on a global variable which is set during the
submodule-config parsing.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove the 'fetch.recursesubmodules' configuration option from the
general submodule-config parsing and instead rely on using
'config_from_gitmodules()' in order to maintain backwards compatibility
with this config being placed in the '.gitmodules' file.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The '.gitmodules' file should only contain information pertinent to
configuring individual submodules (name to path mapping, URL where to
obtain the submodule, etc.) while other configuration like the number of
jobs to use when fetching submodules should be a part of the
repository's config.
Remove the 'submodule.fetchjobs' configuration option from the general
submodule-config parsing and instead rely on using the
'config_from_gitmodules()' in order to maintain backwards compatibility
with this config being placed in the '.gitmodules' file.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We run an early part of "git gc" that deals with refs before
daemonising (and not under lock) even when running a background
auto-gc, which caused multiple gc processes attempting to run the
early part at the same time. This is now prevented by running the
early part also under the GC lock.
* jk/gc-pre-detach-under-hook:
gc: run pre-detach operations under lock
This operation has quadratic complexity, which is especially painful
on Windows, where shell scripts are *already* slow (mainly due to the
overhead of the POSIX emulation layer).
Let's reimplement this with linear complexity (using a hash map to
match the commits' subject lines) for the common case; Sadly, the
fixup/squash feature's design neglected performance considerations,
allowing arbitrary prefixes (read: `fixup! hell` will match the
commit subject `hello world`), which means that we are stuck with
quadratic performance in the worst case.
The reimplemented logic also happens to fix a bug where commented-out
lines (representing empty patches) were dropped by the previous code.
While at it, clarify how the fixup/squash feature works in `git rebase
-i`'s man page.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In particular on Windows, where shell scripts are even more expensive
than on MacOSX or Linux, it makes sense to move a loop that forks
Git at least once for every line in the todo list into a builtin.
Note: The original code did not try to skip unnecessary picks of root
commits but punts instead (probably --root was not considered common
enough of a use case to bother optimizing). We do the same, for now.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In particular on Windows, where shell scripts are even more expensive
than on MacOSX or Linux, it makes sense to move a loop that forks
Git at least once for every line in the todo list into a builtin.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is crucial to improve performance on Windows, as the speed is now
mostly dominated by the SHA-1 transformation (because it spawns a new
rev-parse process for *every* line, and spawning processes is pretty
slow from Git for Windows' MSYS2 Bash).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The first step of an interactive rebase is to generate the so-called "todo
script", to be stored in the state directory as "git-rebase-todo" and to
be edited by the user.
Originally, we adjusted the output of `git log <options>` using a simple
sed script. Over the course of the years, the code became more
complicated. We now use shell scripting to edit the output of `git log`
conditionally, depending whether to keep "empty" commits (i.e. commits
that do not change any files).
On platforms where shell scripting is not native, this can be a serious
drag. And it opens the door for incompatibilities between platforms when
it comes to shell scripting or to Unix-y commands.
Let's just re-implement the todo script generation in plain C, using the
revision machinery directly.
This is substantially faster, improving the speed relative to the
shell script version of the interactive rebase from 2x to 3x on Windows.
Note that the rearrange_squash() function in git-rebase--interactive
relied on the fact that we set the "format" variable to the config setting
rebase.instructionFormat. Relying on a side effect like this is no good,
hence we explicitly perform that assignment (possibly again) in
rearrange_squash().
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* ls/filter-process-delayed:
convert: add "status=delayed" to filter process protocol
convert: refactor capabilities negotiation
convert: move multiple file filter error handling to separate function
convert: put the flags field before the flag itself for consistent style
t0021: write "OUT <size>" only on success
t0021: make debug log file name configurable
t0021: keep filter log files on comparison
Remove the unused variable "heads" from cmd_fsck().
This variable was made unused in commit c3271a0 ("fsck: do not fallback
"git fsck <bogus>" to "git fsck"", 2017-01-17).
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some projects require every commit, even merges, to be signed off
[*1*]. Because "git merge" does not have a "--signoff" option like
"git commit" does, the user needs to add one manually when the
command presents an editor to describe the merge, or later use "git
commit --amend --signoff".
Help developers of these projects by teaching "--signoff" option to
"git merge".
*1* https://public-inbox.org/git/CAHv71zK5SqbwrBFX=a8-DY9H3KT4FEyMgv__p2gZzNr0WUAPUw@mail.gmail.com/T/#u
Requested-by: Dan Kohn <dan@linuxfoundation.org>
Signed-off-by: Łukasz Gryglicki <lukaszgryglicki@o2.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Align argument list and place opening brace on its own line.
Signed-off-by: Dimitrios Christidis <dimitrios@christidis.me>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
By declaring the task_cb parameter of type `void **`, the signature of
the get_next_task method suggests that the "task-specific cookie" can be
defined in that method, and the signatures of the start_failure and of
the task_finished methods declare that parameter of type `void *`,
suggesting that those methods are mere users of said cookie.
That convention makes a total lot of sense, because the tasks are pretty
much dead when one of the latter two methods is called: there would be
little use to reset that cookie at that point because nobody would be
able to see the change afterwards.
However, this is not what the code actually does. For all three methods,
it passes the *address* of pp->children[i].data.
As reasoned above, this behavior makes no sense. So let's change the
implementation to adhere to the convention suggested by the signatures.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 06bf4ad1d (push: propagate remote and refspec with
--recurse-submodules) push was taught how to propagate a refspec down to
submodules when the '--recurse-submodules' flag is given. The only refspecs
that are allowed to be propagated are ones which name a ref which exists
in both the superproject and the submodule, with the caveat that 'HEAD'
was disallowed.
This patch teaches push-check (the submodule helper which determines if
a refspec can be propagated to a submodule) to permit propagating 'HEAD'
if and only if the superproject and the submodule both have the same
named branch checked out and the submodule is not in a detached head
state.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "used" field in struct object is only used by builtin/fsck. Remove
that field and modify builtin/fsck to use a flag instead.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If obj->type == OBJ_TREE, an invocation of fsck_walk() will invoke
parse_tree() and return quickly if that returns nonzero, so it is of no
use for traverse_one_object() to invoke parse_tree() in this situation
before invoking fsck_walk(). Remove that code.
The behavior of traverse_one_object() is changed slightly in that it now
returns -1 instead of 1 in the case that parse_tree() fails, but this is
not an issue because its only caller (traverse_reachable) does not care
about the value as long as it is nonzero.
This code was introduced in commit 271b8d2 ("builtin-fsck: move away
from object-refs to fsck_walk", 2008-02-25). The same issue existed in
that commit.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If done_pbase_paths is NULL then done_pbase_paths_num must be zero and
done_pbase_path_pos() returns -1 without accessing the array, so the
check is not necessary.
If the invariant was violated then the check would make sure we keep
on going and allocate the necessary amount of memory in the next
ALLOC_GROW call. That sounds nice, but all array entries except for
one would contain garbage data.
If the invariant was violated without the check we'd get a segfault in
done_pbase_path_pos(), i.e. an observable crash, alerting us of the
presence of a bug.
Currently there is no such bug: Only the functions check_pbase_path()
and cleanup_preferred_base() change pointer and counter, and both make
sure to keep them in sync. Get rid of the check anyway to allow us to
see if later changes introduce such a defect, and to simplify the code.
Detected by Coverity Scan.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We run an early part of "git gc" that deals with refs before
daemonising (and not under lock) even when running a background
auto-gc, which caused multiple gc processes attempting to run the
early part at the same time. This is now prevented by running the
early part also under the GC lock.
* jk/gc-pre-detach-under-hook:
gc: run pre-detach operations under lock
This is another test balloon to see if we get complaints from people
whose compilers do not support designated initializer for arrays.
The use of the feature is not all that interesting for cases like
the one this patch touches, where the initialized elements of the
array is dense, but it would be nice if we can use the feature to
initialize an array that has elements initialized to interesting
values only sparsely.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The check for whether the template given to 'git commit' is untouched
is done before the empty message check. This results in a wrong error
message being displayed in the following case. When the user removes
everything in template completely to abort the commit he is shown the
"template untouched" error which is wrong. He should be shown the
"empty message" error.
Do the empty message check before checking for an untouched template
thus fixing this issue.
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Exit early when asked to prune an index that contains no entries to
begin with. This avoids pointer arithmetic on istate->cache, which is
possibly NULL in that case.
Found with Clang's UBSan.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Simplify the code for moving members inside of an array and make it more
robust by using the helper macro MOVE_ARRAY. It calculates the size
based on the specified number of elements for us and supports NULL
pointers when that number is zero. Raw memmove(3) calls with NULL can
cause the compiler to (over-eagerly) optimize out later NULL checks.
This patch was generated with contrib/coccinelle/array.cocci and spatch
(Coccinelle).
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We set old_oid to NULL if we found out that it's a corrupt reference.
In that case don't try to access the hash member and pass NULL to
ref_transaction_delete() instead.
Found with Clang's UBSan.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Check if note is NULL, as we already do for different purposes a few
lines above, and pass a NULL pointer to prepare_note_data() in that
case instead of trying to access the hash member.
Found with Clang's UBSan.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Acked-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Convert the flags for get_oid_with_context and friends to use "OID"
instead of "SHA1" in their names.
This transform was made by running the following one-liner on the
affected files:
perl -pi -e 's/GET_SHA1/GET_OID/g'
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Convert the uses of unsigned char * to struct object_id.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git pull --rebase --recurse-submodules" learns to rebase the
branch in the submodules to an updated base.
* sb/pull-rebase-submodule:
builtin/fetch cleanup: always set default value for submodule recursing
pull: optionally rebase submodules (remote submodule changes only)
builtin/fetch: parse recurse-submodules-default at default options parsing
builtin/fetch: factor submodule recurse parsing out to submodule config
Update the hashmap API so that data to customize the behaviour of
the comparison function can be specified at the time a hashmap is
initialized.
* sb/hashmap-customize-comparison:
hashmap: migrate documentation from Documentation/technical into header
patch-ids.c: use hashmap correctly
hashmap.h: compare function has access to a data field
Code cleanup.
* ab/grep-lose-opt-regflags:
grep: remove redundant REG_NEWLINE when compiling fixed regex
grep: remove regflags from the public grep_opt API
grep: remove redundant and verbose re-assignments to 0
grep: remove redundant "fixed" field re-assignment to 0
grep: adjust a redundant grep pattern type assignment
grep: remove redundant double assignment to 0
When color placeholders like %(color:red) are used in a
ref-filter format, we unconditionally output the colors,
even if the user has asked us for no colors. This usually
isn't a problem when the user is constructing a --format on
the command line, but it means we may do the wrong thing
when the format is fed from a script or alias. For example:
$ git config alias.b 'branch --format=%(color:green)%(refname)'
$ git b --no-color
should probably omit the green color. Likewise, running:
$ git b >branches
should probably also omit the color, just as we would for
all baked-in coloring (and as we recently started to do for
user-specified colors in --pretty formats).
This commit makes both of those cases work by teaching
the ref-filter code to consult want_color() before
outputting any color. The color flag in ref_format defaults
to "-1", which means we'll consult color.ui, which in turn
defaults to the usual isatty() check on stdout. However,
callers like git-branch which support their own color config
(and command-line options) can override that.
The new tests independently cover all three of the callers
of ref-filter (for-each-ref, tag, and branch). Even though
these seem redundant, it confirms that we've correctly
plumbed through all of the necessary config to make colors
work by default.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When rev-list pretty-prints a commit, it creates a new
pretty_print_context and copies items from the rev_info
struct. We don't currently copy the "use_color" field,
though. Nobody seems to have noticed because the only part
of pretty.c that cares is the %C(auto,...) placeholder, and
presumably not many people use that with the rev-list
plumbing (as opposed to with git-log).
It will become more noticeable in a future patch, though,
when we start treating all user-format colors as auto-colors
(in which case it would become impossible to format colors
with rev-list, even with --color=always).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In most commands we load config before parsing command line
options, since it lets the latter override the former with a
simple variable assignment. In the case of for-each-ref,
though, we do it in the reverse order. This is OK with
the current code, since there's no interaction between the
config and command-line options.
However, as the ref-filter code starts to care about config
during verify_ref_format(), we'll want to make sure the
config is loaded. Let's bump the config to the usual spot
near the top of the function.
We can drop the comment there; it's impossible to keep a
"why we load the config" comment like this up to date with
every config option we might be interested in. And indeed,
it's already stale; we'd care about core.abbrev, for
instance, when %(objectname:short) is used.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Back in prehistoric times, our decision on whether or not to
show color by default relied on using a config callback that
either did or didn't load color config like color.diff.
When we introduced color.ui, we put it in the same boat:
commands had to manually respect it by using git_color_config()
or its git_color_default_config() convenience wrapper.
But in 4c7f1819b (make color.ui default to 'auto',
2013-06-10), that changed. Since then, we default color.ui
to auto in all programs, meaning that even plumbing commands
like "git diff-tree --pretty" might colorize the output.
Nobody seems to have complained in the intervening years,
presumably because the "is stdout a tty" check does a good
job of catching the right cases.
But that leaves an interesting curiosity: color.ui defaults
to auto even in plumbing, but you can't actually _disable_
the color via config. So if you really hate color and set
"color.ui" to false, diff-tree will still show color (but
porcelain like git-diff won't). Nobody noticed that either,
probably because very few people disable color.
One could argue that the plumbing should _always_ disable
color unless an explicit --color option is given on the
command line. But in practice, this creates a lot of
complications for scripts which do want plumbing to show
user-visible output. They can't just pass "--color" blindly;
they need to check the user's config and decide what to
send.
Given that nobody has complained about the current behavior,
let's assume it's a good path, and follow it to its
conclusion: supporting color.ui everywhere.
Note that you can create havoc by setting color.ui=always in
your config, but that's more or less already the case. We
could disallow it entirely, but it is handy for one-offs
like:
git -c color.ui=always foo >not-a-tty
when "foo" does not take a --color option itself.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The ref-filter module currently provides a callback suitable
for parsing command-line --sort options. But since git-tag
also supports the tag.sort config option, it needs a
function whose implementation is quite similar, but with a
slightly different interface. The end result is that
builtin/tag.c has a copy-paste of parse_opt_ref_sorting().
Instead, let's provide a function to parse an arbitrary
sort string, which we can then trivially wrap to make the
parse_opt variant.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The ref-filter module provides routines for formatting a ref
for output. The fundamental interface for the format is a
"const char *" containing the format, and any additional
options need to be passed to each invocation of
show_ref_array_item.
Instead, let's make a ref_format struct that holds the
format, along with any associated format options. That will
make some enhancements easier in the future:
1. new formatting options can be added without disrupting
existing callers
2. some state can be carried in the struct rather than as
global variables
For now this just has the text format itself along with the
quote_style option, but we'll add more fields in future patches.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Users of the ref-filter code must call verify_ref_format()
before formatting any refs, but most ignore its return
value. This means we may print an error on a syntactically
bogus pattern, but keep going anyway.
In most cases this results in a fatal error when we actually
try to format a ref. But if you have no refs to show at all,
then the behavior is confusing: git prints the error from
verify_ref_format(), then exits with code 0 without showing
any output. Let's instead abort immediately if we know we
have a bogus format.
We'll output the usage information if we have it handy (just
like the existing call in cmd_for_each_ref() does), and
otherwise just die().
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The rewrite of "git branch --list" using for-each-ref's internals
that happened in v2.13 regressed its handling of color.branch.local;
this has been fixed.
* kn/ref-filter-branch-list:
ref-filter.c: drop return from void function
branch: set remote color in ref-filter branch immediately
branch: use BRANCH_COLOR_LOCAL in ref-filter format
branch: only perform HEAD check for local branches
The rewrite of "git branch --list" using for-each-ref's internals
that happened in v2.13 regressed its handling of color.branch.local;
this has been fixed.
* kn/ref-filter-branch-list:
ref-filter.c: drop return from void function
branch: set remote color in ref-filter branch immediately
branch: use BRANCH_COLOR_LOCAL in ref-filter format
branch: only perform HEAD check for local branches
We normally try to avoid having two auto-gc operations run
at the same time, because it wastes resources. This was done
long ago in 64a99eb47 (gc: reject if another gc is running,
unless --force is given, 2013-08-08).
When we do a detached auto-gc, we run the ref-related
commands _before_ detaching, to avoid confusing lock
contention. This was done by 62aad1849 (gc --auto: do not
lock refs in the background, 2014-05-25).
These two features do not interact well. The pre-detach
operations are run before we check the gc.pid lock, meaning
that on a busy repository we may run many of them
concurrently. Ideally we'd take the lock before spawning any
operations, and hold it for the duration of the program.
This is tricky, though, with the way the pid-file interacts
with the daemonize() process. Other processes will check
that the pid recorded in the pid-file still exists. But
detaching causes us to fork and continue running under a
new pid. So if we take the lock before detaching, the
pid-file will have a bogus pid in it. We'd have to go back
and update it with the new pid after detaching. We'd also
have to play some tricks with the tempfile subsystem to
tweak the "owner" field, so that the parent process does not
clean it up on exit, but the child process does.
Instead, we can do something a bit simpler: take the lock
only for the duration of the pre-detach work, then detach,
then take it again for the post-detach work. Technically,
this means that the post-detach lock could lose to another
process doing pre-detach work. But in the long run this
works out.
That second process would then follow-up by doing
post-detach work. Unless it was in turn blocked by a third
process doing pre-detach work, and so on. This could in
theory go on indefinitely, as the pre-detach work does not
repack, and so need_to_gc() will continue to trigger. But
in each round we are racing between the pre- and post-detach
locks. Eventually, one of the post-detach locks will win the
race and complete the full gc. So in the worst case, we may
racily repeat the pre-detach work, but we would never do so
simultaneously (it would happen via a sequence of serialized
race-wins).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Convert code that divides and rounds up to use DIV_ROUND_UP to make the
intent clearer and reduce the number of magic constants.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An old message shown in the commit log template was removed, as it
has outlived its usefulness.
* ks/commit-assuming-only-warning-removal:
commit-template: distinguish status information unconditionally
commit-template: remove outdated notice about explicit paths
When git-rev-list sees no pending commits, it shows a usage
message. This works even when reflog-walking is requested,
because the reflog-walk code currently puts the reflog tips
into the pending queue.
In preparation for refactoring the reflog-walk code, let's
explicitly check whether we have any reflogs to walk. For
now this is a noop, but the existing reflog tests will make
sure that it kicks in after the refactoring. Likewise, we'll
add a test that "rev-list -g" without specifying any reflogs
continues to fail (so that we know our check does not kick
in too aggressively).
Note that the implementation needs to go into its own
sub-function, as the walk code does not expose its innards
outside of reflog-walk.c.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we're doing a reflog walk (instead of walking the
actual parent pointers), we may see commits multiple times.
For this reason, we hold on to the commit buffer for each
commit rather than freeing it after we've showed the commit.
We should do the same for the parent list. Right now this is
just a minor optimization. But once we refactor how reflog
walks are performed, keeping the parents will avoid
confusing us the second time we see the commit.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we're walking reflogs, we leave the commit buffer and
parents in place. A comment explains that this is due to
"cycles". But the interesting thing is the unsaid
implication: that the cycles (plus our clearing of the SEEN
flag) will cause us to show commits multiple times. Let's
spell it out.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We set the current and local branch colors at the top of the
build_format() function. Let's do the same for the remote
color. This saves a little bit of repetition, but more
importantly it puts all of the color-setting in the same
place. That makes it easier to see that we are coloring all
possibilities.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 949af0684 (branch: use ref-filter printing APIs,
2017-01-10), git-branch's output is generated by passing a
custom format to the ref-filter code. This format forgot to
pass BRANCH_COLOR_LOCAL, meaning that local branches
(besides the current one) were never colored at all.
We can add it in the %(if) block where we decide whether the
branch is "current" or merely "local". Note that this means
the current/local coloring is either/or. You can't set:
[color "branch"]
local = blue
current = bold
and expect the current branch to be "bold blue". This
matches the pre-949af0684 behavior.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When assembling the ref-filter format to show "git branch"
output, we put the "%(if)%(HEAD)" conditional at the start
of the overall format. But there's no point in checking
whether a remote branch matches HEAD, as it never will.
The check should go inside the local conditional; we
assemble that format inside the "local" strbuf.
By itself, this is just a minor optimization. But in a
future patch, we'll need this refactoring to fix
local-branch coloring.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Optimize "what are the object names already taken in an alternate
object database?" query that is used to derive the length of prefix
an object name is uniquely abbreviated to.
* rs/sha1-name-readdir-optim:
sha1_file: guard against invalid loose subdirectory numbers
sha1_file: let for_each_file_in_obj_subdir() handle subdir names
p4205: add perf test script for pretty log formats
sha1_name: cache readdir(3) results in find_short_object_filename()
Introduce a "repository" object to eventually make it easier to
work in multiple repositories (the primary focus is to work with
the superproject and its submodules) in a single process.
* bw/repo-object:
ls-files: use repository object
repository: enable initialization of submodules
submodule: convert is_submodule_initialized to work on a repository
submodule: add repo_read_gitmodules
submodule-config: store the_submodule_cache in the_repository
repository: add index_state to struct repo
config: read config from a repository object
path: add repo_worktree_path and strbuf_repo_worktree_path
path: add repo_git_path and strbuf_repo_git_path
path: worktree_git_path() should not use file relocation
path: convert do_git_path to take a 'struct repository'
path: convert strbuf_git_common_path to take a 'struct repository'
path: always pass in commondir to update_common_dir
path: create path.h
environment: store worktree in the_repository
environment: place key repository state in the_repository
repository: introduce the repository object
environment: remove namespace_len variable
setup: add comment indicating a hack
setup: don't perform lazy initialization of repository state
Some `clean` / `smudge` filters may require a significant amount of
time to process a single blob (e.g. the Git LFS smudge filter might
perform network requests). During this process the Git checkout
operation is blocked and Git needs to wait until the filter is done to
continue with the checkout.
Teach the filter process protocol, introduced in edcc8581 ("convert: add
filter.<driver>.process option", 2016-10-16), to accept the status
"delayed" as response to a filter request. Upon this response Git
continues with the checkout operation. After the checkout operation Git
calls "finish_delayed_checkout" which queries the filter for remaining
blobs. If the filter is still working on the completion, then the filter
is expected to block. If the filter has completed all remaining blobs
then an empty response is expected.
Git has a multiple code paths that checkout a blob. Support delayed
checkouts only in `clone` (in unpack-trees.c) and `checkout` operations
for now. The optimization is most effective in these code paths as all
files of the tree are processed.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git status" has long shown essentially the same message as "git
commit"; the message it gives while preparing for the root commit,
i.e. "Initial commit", was hard to understand for some new users.
Now it says "No commits yet" to stress more on the current status
(rather than the commit the user is preparing for, which is more in
line with the focus of "git commit").
* ks/status-initial-commit:
status: contextually notify user about an initial commit
When using the hashmap a common need is to have access to caller provided
data in the compare function. A couple of times we abuse the keydata field
to pass in the data needed. This happens for example in patch-ids.c.
This patch changes the function signature of the compare function
to have one more void pointer available. The pointer given for each
invocation of the compare function must be defined in the init function
of the hashmap and is just passed through.
Documentation of this new feature is deferred to a later patch.
This is a rather mechanical conversion, just adding the new pass-through
parameter. However while at it improve the naming of the fields of all
compare functions used by hashmaps by ensuring unused parameters are
prefixed with 'unused_' and naming the parameters what they are (instead
of 'unused' make it 'unused_keydata').
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Refactor calls to the grep machinery to always pass opt.ignore_case &
opt.extended_regexp_option instead of setting the equivalent regflags
bits.
The bug fixed when making -i work with -P in commit 9e3cbc59d5 ("log:
make --regexp-ignore-case work with --perl-regexp", 2017-05-20) was
really just plastering over the code smell which this change fixes.
The reason for adding the extensive commentary here is that I
discovered some subtle complexity in implementing this that really
should be called out explicitly to future readers.
Before this change we'd rely on the difference between
`extended_regexp_option` and `regflags` to serve as a membrane between
our preliminary parsing of grep.extendedRegexp and grep.patternType,
and what we decided to do internally.
Now that those two are the same thing, it's necessary to unset
`extended_regexp_option` just before we commit in cases where both of
those config variables are set. See 84befcd0a4 ("grep: add a
grep.patternType configuration setting", 2012-08-03) for the code and
documentation related to that.
The explanation of why the if/else branches in
grep_commit_pattern_type() are ordered the way they are exists in that
commit message, but I think it's worth calling this subtlety out
explicitly with a comment for future readers.
Even though grep_commit_pattern_type() is the only caller of
grep_set_pattern_type_option() it's simpler to reset the
extended_regexp_option flag in the latter, since 2/3 branches in the
former would otherwise need to reset it, this way we can do it in one
place.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The commit template adds the status information without
adding a new line to distinguish them in the absence
of optional parts. This results in difficulty in interpreting
it's content, specifically for inexperienced users.
Unconditionally, add new lines to separate the status message
from the other parts of the commit-template to make it more
readable.
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The notice that "git commit <paths>" default to "git commit
--only <paths>" was there since 756e3ee0 ("Merge branch
'jc/commit'", 2006-02-14). Back then, existing users of Git
expected the command doing "git commit --include <paths>", and
after the behaviour of the command was changed to align with
other people's "$scm commit <paths>", the text was added to help
them transition their expectations.
Remove the message that now has outlived its usefulness.
Signed-off-by: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The helper function utf8_fprintf(fp, ...) has exactly the same
effect to the output stream fp as fprintf(fp, ...) does, and the
only difference is that its return value counts in display columns
consumed (assuming that the payload is encoded in UTF-8), as opposed
to number of bytes.
There is no reason to call it unless the caller cares about its
return value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The check for the default was introduced with 88a21979c5 (fetch/pull:
recurse into submodules when necessary, 2011-03-06), which replaced an
older construct (builtin/fetchs own implementation of the super-prefix)
introduced in be254a0ea9 (Add the 'fetch.recurseSubmodules' config setting,
2010-11-11) which made sense at the time as there was no default fetch
option for submodules at the time.
Set builtin/fetch.c#recurse_submodules_default to the same value as
submodule.c#config_fetch_recurse_submodules which is set via
set_config_fetch_recurse_submodules, such that the condition for checking
whether we have to set the default value becomes unnecessary.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git status" learned to optionally give how many stash entries the
user has in its output.
* lb/status-stash-count:
glossary: define 'stash entry'
status: add optional stash count information
stash: update documentation to use 'stash entry'
has_sha1_file_with_flags() implements many mechanisms in common with
sha1_object_info_extended(). Make has_sha1_file_with_flags() a
convenience function for sha1_object_info_extended() instead.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The result from "git diff" that compares two blobs, e.g. "git diff
$commit1:$path $commit2:$path", used to be shown with the full
object name as given on the command line, but it is more natural to
use the $path in the output and use it to look up .gitattributes.
* jk/diff-blob:
diff: use blob path for blob/file diffs
diff: use pending "path" if it is available
diff: use the word "path" instead of "name" for blobs
diff: pass whole pending entry in blobinfo
handle_revision_arg: record paths for pending objects
handle_revision_arg: record modes for "a..b" endpoints
t4063: add tests of direct blob diffs
get_sha1_with_context: dynamically allocate oc->path
get_sha1_with_context: always initialize oc->symlink_path
sha1_name: consistently refer to object_context as "oc"
handle_revision_arg: add handle_dotdot() helper
handle_revision_arg: hoist ".." check out of range parsing
handle_revision_arg: stop using "dotdot" as a generic pointer
handle_revision_arg: simplify commit reference lookups
handle_revision_arg: reset "dotdot" consistently
"git describe --contains" penalized light-weight tags so much that
they were almost never considered. Instead, give them about the
same chance to be considered as an annotated tag that is the same
age as the underlying commit would.
* jc/name-rev-lw-tag:
name-rev: favor describing with tags and use committer date to tiebreak
name-rev: refactor logic to see if a new candidate is a better name
A common pattern to free a piece of memory and assign NULL to the
pointer that used to point at it has been replaced with a new
FREE_AND_NULL() macro.
* ab/free-and-null:
*.[ch] refactoring: make use of the FREE_AND_NULL() macro
coccinelle: make use of the "expression" FREE_AND_NULL() rule
coccinelle: add a rule to make "expression" code use FREE_AND_NULL()
coccinelle: make use of the "type" FREE_AND_NULL() rule
coccinelle: add a rule to make "type" code use FREE_AND_NULL()
git-compat-util: add a FREE_AND_NULL() wrapper around free(ptr); ptr = NULL
Using "git add d/i/r" when d/i/r is the top of the working tree of
a separate repository would create a gitlink in the index, which
would appear as a not-quite-initialized submodule to others. We
learned to give warnings when this happens.
* jk/warn-add-gitlink:
t: move "git add submodule" into test blocks
add: warn when adding an embedded repository
Fix configuration codepath to pay proper attention to commondir
that is used in multi-worktree situation, and isolate config API
into its own header file.
* bw/config-h:
config: don't implicitly use gitdir or commondir
config: respect commondir
setup: teach discover_git_directory to respect the commondir
config: don't include config.h by default
config: remove git_config_iter
config: create config.h
Code clean-up.
* bw/ls-files-sans-the-index:
ls-files: factor out tag calculation
ls-files: factor out debug info into a function
ls-files: convert show_files to take an index
ls-files: convert show_ce_entry to take an index
ls-files: convert prune_cache to take an index
ls-files: convert ce_excluded to take an index
ls-files: convert show_ru_info to take an index
ls-files: convert show_other_files to take an index
ls-files: convert show_killed_files to take an index
ls-files: convert write_eolinfo to take an index
ls-files: convert overlay_tree_on_cache to take an index
tree: convert read_tree to take an index parameter
convert: convert renormalize_buffer to take an index
convert: convert convert_to_git to take an index
convert: convert convert_to_git_filter_fd to take an index
convert: convert crlf_to_git to take an index
convert: convert get_cached_convert_stats_ascii to take an index
Loose object subdirectories have hexadecimal names based on the first
byte of the hash of contained objects, thus their numerical
representation can range from 0 (0x00) to 255 (0xff). Change the type
of the corresponding variable in for_each_file_in_obj_subdir() and
associated callback functions to unsigned int and add a range check.
Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
