This reverts commit 72a5b561fc, as adding
fixed number of hexdigits more than necessary to make one object name
locally unique does not help in futureproofing the uniqueness of names
we generate today.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* nd/oneline-sha1-name-from-specific-ref:
get_sha1: handle special case $commit^{/}
get_sha1: support $commit^{/regex} syntax
get_sha1_oneline: make callers prepare the commit list to traverse
get_sha1_oneline: fix lifespan rule of temp_commit_buffer variable
Empty regex pattern should always match. But the exact behavior of
regexec() may vary. Because it always matches anyway, we can just
return 'matched' without calling regex machinery.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* nd/extended-sha1-relpath:
get_sha1: teach ":$n:<path>" the same relative path logic
get_sha1: support relative path ":path" syntax
Make prefix_path() return char* without const
Conflicts:
sha1_name.c
This works like ":/regex" syntax that finds a recently created commit
starting from all refs, but limits the discovery to those reachable from
the named commit.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This gives callers more control, i.e. which ref will be searched from.
They must prepare the list ordered by committer date.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is trying to free only what we ourselves read (as opposed to what
we borrowed from commit->buffer) but do so lazily only to work around
the fact that the code has many irregular exit points, and doing it right
makes it necessary to call free() from many different places in the loop.
Rewrite the structure of the code inside the loop so that the variable
has to live within a single iteration, ever. This should make the logic
easier to follow as well.
Also we didn't free a temporary commit list we kept to hold the original
set of commits. Free it.
Noticed-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We taught the object name parser to take ":./<path>", ":../<path>", etc.
and understand them to be relative to the current working directory.
Given that ":<path>" is just a short-hand for ":0:<path>" (i.e. "take
stage #0 of that path"), we should allow ":$n:<path>" to interpret them
the same way.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently :path and ref:path can be used to refer to a specific object
in index or ref respectively. "path" component is absolute path. This
patch allows "path" to be written as "./path" or "../path", which is
relative to user's original cwd.
This does not work in commands for which startup_info is NULL
(i.e. non-builtin ones, it seems none of them needs this anyway).
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jn/thinner-wrapper:
Remove pack file handling dependency from wrapper.o
pack-objects: mark file-local variable static
wrapper: give zlib wrappers their own translation unit
strbuf: move strbuf_branchname to sha1_name.c
path helpers: move git_mkstemp* to wrapper.c
wrapper: move odb_* to environment.c
wrapper: move xmmap() to sha1_file.c
Add commit_list prefix to insert_by_date function and to sort_by_date,
so it's clear that these functions refer to commit_list structure.
Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
strbuf_branchname is a thin wrapper around interpret_branch_name
from sha1_name.o. Most strbuf.o users do not need it.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Even though git makes sure that it uses enough hexdigits to show an
abbreviated object name unambiguously, as more objects are added to the
repository over time, a short name that used to be unique will stop being
unique. Git uses this many extra hexdigits that are more than necessary
to make the object name currently unique, in the hope that its output will
stay unique a bit longer.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We need to get the correct mode when blame reads the source from the
working tree, the index, or trees. This allows us to omit running
textconv filters on symbolic links.
Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru>
Reviewed-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The documentation in revisions.txt did not match the implementation, and
the comment in sha1_name.c was incomplete.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* js/maint-reflog-beyond-horizon:
t1503: fix broken test_must_fail calls
rev-parse: tests git rev-parse --verify master@{n}, for various n
sha1_name.c: use warning in preference to fprintf(stderr
rev-parse: exit with non-zero status if ref@{n} is not valid.
This commit changes sha1_name.c to use warning instead of
fprintf(stderr).
Trailing newlines from message formats have been removed
since warning adds one itself.
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"The current behaviour of ref@{...} syntax parser is suboptimal:
$ git rev-parse --verify jch@{99999} && echo true
warning: Log for 'jch' only has 1368 entries.
cfb88e9a8d
true
It even knows that it is running off the cut-off point; it should just
cause the caller to notice that fact. I don't think changing it to error
out should cause any harm to existing callers."
With this change:
$ git rev-parse --verify jch@{99999} || echo false
fatal: Log for 'jch' only has 1368 entries.
false
$ git rev-parse jch@{99999} || echo false
fatal: Log for 'jch' only has 1368 entries.
false
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The parser tried to clean up the object flags it used while finding
commits with matching string, but was not doing a very good job at it.
This caused "checkout -b new ':/token'", which internally tries to parse
':/token' twice as an object name, to fail when the commit in question
was reachable from only one ref.
The mask bits given to pop_most_recent_commit(&list, MASK) means "I have
already been on the list to be processed, so please do not place me again
even if I am found to be a parent of some other commit on the list." So
mark them when we add them to the list at the beginning.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* cp/textconv-cat-file:
git-cat-file.txt: Document --textconv
t/t8007: test textconv support for cat-file
textconv: support for cat_file
sha1_name: add get_sha1_with_context()
Textconv is defined by the diff driver, which is associated with a pathname,
not a blob. This fonction permits to know the context for the sha1 you're
looking for, especially his pathname
Signed-off-by: Clément Poulain <clement.poulain@ensimag.imag.fr>
Signed-off-by: Diane Gasselin <diane.gasselin@ensimag.imag.fr>
Signed-off-by: Axel Bonnet <axel.bonnet@ensimag.imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This also makes it trigger anywhere in the commit message, rather than
just at the beginning. Which tends to be a lot more useful.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The code to see if user input "git show :path" makes sense tried to access
the index without properly checking the array bound.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint-1.6.6:
dwim_ref: fix dangling symref warning
stash pop: remove 'apply' options during 'drop' invocation
diff: make sure --output=/bad/path is caught
Remove hyphen from "git-command" in two error messages
If we encounter a symref that is dangling, in most cases we will warn
about it. The one exception is a dangling HEAD, as that indicates a
branch yet to be born.
However, the check in dwim_ref was not quite right. If we were fed
something like "HEAD^0" we would try to resolve "HEAD", see that it is
dangling, and then check whether the _original_ string we got was
"HEAD" (which it wasn't in this case). And that makes no sense; the
dangling thing we found was not "HEAD^0" but rather "HEAD".
Fixing this squelches a scary warning from "submodule summary HEAD" (and
consequently "git status" with status.submodulesummary set) in an empty
repo, as the submodule script calls "git rev-parse -q --verify HEAD^0".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Something like foo@{-1} is nonsensical, as the @{-N} syntax
is reserved for "the Nth last branch", and is not an actual
reflog selector. We should not feed such nonsense to
approxidate at all.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously interpret_branch_name would see @{-1} and stop
parsing, leaving the @{u} as cruft that provoked an error.
Instead, we should recurse if there is more to parse.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/maint-reflog-bad-timestamp:
t0101: use a fixed timestamp when searching in the reflog
Update @{bogus.timestamp} fix not to die()
approxidate_careful() reports errorneous date string
The caller will say "It is not a valid object name" if it wants to, and
some callers may even try to see if it names an object and otherwise try to
see if it is a path.
Pointed out by Jeff King.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
For a long time, the time based reflog syntax (e.g. master@{yesterday})
didn't complain when the "human readable" timestamp was misspelled, as
the underlying mechanism tried to be as lenient as possible. The funny
thing was that parsing of "@{now}" even relied on the fact that anything
not recognized by the machinery returned the current timestamp.
Introduce approxidate_careful() that takes an optional pointer to an
integer, that gets assigned 1 when the input does not make sense as a
timestamp.
As I am too lazy to fix all the callers that use approxidate(), most of
the callers do not take advantage of the error checking, but convert the
code to parse reflog to use it as a demonstration.
Tests are mostly from Jeff King.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This teaches @{upstream} syntax to interpret_branch_name(), instead
of dwim_ref() machinery.
There are places in git UI that behaves differently when you give a local
branch name and when you give an extended SHA-1 expression that evaluates
to the commit object name at the tip of the branch. The intent is that
the special syntax such as @{-1} can stand in as if the user spelled the
name of the branch in such places.
The name of the branch "frotz" to switch to ("git checkout frotz"), and
the name of the branch "nitfol" to fork a new branch "frotz" from ("git
checkout -b frotz nitfol"), are examples of such places. These places
take only the name of the branch (e.g. "frotz"), and they are supposed to
act differently to an equivalent refname (e.g. "refs/heads/frotz"), so
hooking the @{upstream} and @{-N} syntax to dwim_ref() is insufficient
when we want to deal with cases a local branch is forked from another
local branch and use "forked@{upstream}" to name the forkee branch.
The "upstream" syntax "forked@{u}" is to specify the ref that "forked" is
configured to merge with, and most often the forkee is a remote tracking
branch, not a local branch. We cannot simply return a local branch name,
but that does not necessarily mean we have to returns the full refname
(e.g. refs/remotes/origin/frotz, when returning origin/frotz is enough).
This update calls shorten_unambiguous_ref() to do so.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/checkout-merge-base:
rebase -i: teach --onto A...B syntax
rebase: fix --onto A...B parsing and add tests
"rebase --onto A...B" replays history on the merge base between A and B
"checkout A...B" switches to the merge base between A and B
A new notation '<branch>@{upstream}' refers to the branch <branch> is set
to build on top of. Missing <branch> (i.e. '@{upstream}') defaults to the
current branch.
This allows you to run, for example,
for l in list of local branches
do
git log --oneline --left-right $l...$l@{upstream}
done
to inspect each of the local branches you are interested in for the
divergence from its upstream.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous error message was the same in many situations (unknown
revision or path not in the working tree). We try to help the user as
much as possible to understand the error, especially with the
sha1:filename notation. In this case, we say whether the sha1 or the
filename is problematic, and diagnose the confusion between
relative-to-root and relative-to-$PWD confusion precisely.
The 7 new error messages are tested.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When flipping commits around on topic branches, I often end up doing
this sequence:
* Run "log --oneline next..jc/frotz" to find out the first commit
on 'jc/frotz' branch not yet merged to 'next';
* Run "checkout $that_commit^" to detach HEAD to the parent of it;
* Rebuild the series on top of that commit; and
* "show-branch jc/frotz HEAD" and "diff jc/frotz HEAD" to verify.
Introduce a new syntax to "git checkout" to name the commit to switch to,
to make the first two steps easier. When the branch to switch to is
specified as A...B (you can omit either A or B but not both, and HEAD
is used instead of the omitted side), the merge base between these two
commits are computed, and if there is one unique one, we detach the HEAD
at that commit.
With this, I can say "checkout next...jc/frotz".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we fall back to a standard for_each_reflog_ent() after failing to find
the nth branch switch (or if we had a short reflog) with the call to
for_each_recent_reflog_ent(), we do not need to free the memory allocated
for our strbuf's since a strbuf_reset() will be performed in
grab_nth_branch_switch() before assigning to the entry.
Plus, the strbuf_release() negates the non-zero hint we initially gave to
strbuf_init() just above these lines.
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These allow you to say "git checkout @{-2}" to switch to the branch two
"branch switching" ago by pretending as if you typed the name of that
branch. As it is likely that we will be introducing more short-hands to
write the name of a branch without writing it explicitly, rename the
functions from "nth_last_branch" to more generic "branch_name", to prepare
for different semantics.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
057e713 (Warn use of "origin" when remotes/origin/HEAD is dangling,
2009-02-08) tried to warn dangling refs/remotes/origin/HEAD only when
"origin" was used to refer to it. There was one corner case a symref is
expected to be dangling and this warning is unwarranted: HEAD in an empty
repository.
This squelches the warning for this special case.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous one squelched the diagnositic message we used to issue every
time we enumerated the refs and noticed a dangling ref. This adds the
warning back to the place where the user actually attempts to use it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When get_sha1_basic() is passed a buffer of len 0, it should not
check if buf[len-1] is a curly bracket.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We only accept "checkout: moving from A to B" newer style reflog entries,
in order to pick up A. There is no point computing where B begins at
after running strstr to locate " to ", nor adding 4 and then subtracting 4
from the same pointer.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
