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11292 commits

Author SHA1 Message Date
Junio C Hamano
0e074fb4e5 Merge branch 'rs/ls-tree-prefix-simplify'
Code simplification.

* rs/ls-tree-prefix-simplify:
  ls-tree: simplify prefix handling
2023-07-17 11:30:42 -07:00
Junio C Hamano
b00ec259e7 Merge branch 'jk/fsck-indices-in-worktrees'
Code clarification.

* jk/fsck-indices-in-worktrees:
  fsck: avoid misleading variable name
2023-07-08 11:23:08 -07:00
Junio C Hamano
7f5ad0ca8d Merge branch 'js/empty-index-fixes'
A few places failed to differenciate the case where the index is
truly empty (nothing added) and we haven't yet read from the
on-disk index file, which have been corrected.

* js/empty-index-fixes:
  commit -a -m: allow the top-level tree to become empty again
  split-index: accept that a base index can be empty
  do_read_index(): always mark index as initialized unless erroring out
2023-07-08 11:23:07 -07:00
René Scharfe
7b7203e78a ls-tree: simplify prefix handling
git ls-tree has two prefixes: The one handed to cmd_ls_tree(), i.e. the
current subdirectory in the repository (if any) and the "display" prefix
used by the show_tree_*() functions.  The option --full-name clears the
last one, i.e. it shows full paths, and --full-tree clears both, i.e. it
acts as if the command was started in the root of the repository.

The show_tree_*() functions use the ls_tree_options members chomp_prefix
and ls_tree_prefix to determine their prefix values.  Calculate it once
in cmd_ls_tree() instead, once the main prefix value is finalized.

This allows chomp_prefix to become a local variable.  Stop using
strlen(3) to determine its initial value -- we only care whether we got
a non-empty string, not precisely how long it is.

Rename ls_tree_prefix to prefix to demonstrate that we converted all
users and because the ls_tree_ part is no longer necessary since
030a3d5d9e (ls-tree: use a "struct options", 2023-01-12) turned it from
a global variable to a struct member.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-07 11:57:13 -07:00
Junio C Hamano
b3d1c85d48 Merge branch 'gc/config-context'
Reduce reliance on a global state in the config reading API.

* gc/config-context:
  config: pass source to config_parser_event_fn_t
  config: add kvi.path, use it to evaluate includes
  config.c: remove config_reader from configsets
  config: pass kvi to die_bad_number()
  trace2: plumb config kvi
  config.c: pass ctx with CLI config
  config: pass ctx with config files
  config.c: pass ctx in configsets
  config: add ctx arg to config_fn_t
  urlmatch.h: use config_fn_t type
  config: inline git_color_default_config
2023-07-06 11:54:48 -07:00
Junio C Hamano
a9cc3b8fc7 Merge branch 'tl/notes-separator'
'git notes append' was taught '--separator' to specify string to insert
between paragraphs.

* tl/notes-separator:
  notes: introduce "--no-separator" option
  notes.c: introduce "--[no-]stripspace" option
  notes.c: append separator instead of insert by pos
  notes.c: introduce '--separator=<paragraph-break>' option
  t3321: add test cases about the notes stripspace behavior
  notes.c: use designated initializers for clarity
  notes.c: cleanup 'strbuf_grow' call in 'append_edit'
2023-07-06 11:54:47 -07:00
Junio C Hamano
67e7305e64 Merge branch 'cw/strbuf-cleanup'
Move functions that are not about pure string manipulation out of
strbuf.[ch]

* cw/strbuf-cleanup:
  strbuf: remove global variable
  path: move related function to path
  object-name: move related functions to object-name
  credential-store: move related functions to credential-store file
  abspath: move related functions to abspath
  strbuf: clarify dependency
  strbuf: clarify API boundary
2023-07-06 11:54:46 -07:00
Junio C Hamano
da269af920 Merge branch 'rs/strbuf-expand-step'
Code clean-up around strbuf_expand() API.

* rs/strbuf-expand-step:
  strbuf: simplify strbuf_expand_literal_cb()
  replace strbuf_expand() with strbuf_expand_step()
  replace strbuf_expand_dict_cb() with strbuf_expand_step()
  strbuf: factor out strbuf_expand_step()
  pretty: factor out expand_separator()
2023-07-06 11:54:45 -07:00
Junio C Hamano
89d62d5e8e Merge branch 'bc/more-git-var'
Add more "git var" for toolsmiths to learn various locations Git is
configured with either via the configuration or hardcoded defaults.

* bc/more-git-var:
  var: add config file locations
  var: add attributes files locations
  attr: expose and rename accessor functions
  var: adjust memory allocation for strings
  var: format variable structure with C99 initializers
  var: add support for listing the shell
  t: add a function to check executable bit
  var: mark unused parameters in git_var callbacks
2023-07-04 16:08:18 -07:00
Junio C Hamano
a1264a08a1 Merge branch 'en/header-split-cache-h-part-3'
Header files cleanup.

* en/header-split-cache-h-part-3: (28 commits)
  fsmonitor-ll.h: split this header out of fsmonitor.h
  hash-ll, hashmap: move oidhash() to hash-ll
  object-store-ll.h: split this header out of object-store.h
  khash: name the structs that khash declares
  merge-ll: rename from ll-merge
  git-compat-util.h: remove unneccessary include of wildmatch.h
  builtin.h: remove unneccessary includes
  list-objects-filter-options.h: remove unneccessary include
  diff.h: remove unnecessary include of oidset.h
  repository: remove unnecessary include of path.h
  log-tree: replace include of revision.h with simple forward declaration
  cache.h: remove this no-longer-used header
  read-cache*.h: move declarations for read-cache.c functions from cache.h
  repository.h: move declaration of the_index from cache.h
  merge.h: move declarations for merge.c from cache.h
  diff.h: move declaration for global in diff.c from cache.h
  preload-index.h: move declarations for preload-index.c from elsewhere
  sparse-index.h: move declarations for sparse-index.c from cache.h
  name-hash.h: move declarations for name-hash.c from cache.h
  run-command.h: move declarations for run-command.c from cache.h
  ...
2023-06-29 16:43:21 -07:00
Eric Sunshine
6e6a529b57 fsck: avoid misleading variable name
When reporting a problem, `git fsck` emits a message such as:

    missing blob 1234abcd (:file)

However, this can be ambiguous when the problem is detected in the index
of a worktree other than the one in which `git fsck` was invoked. To
address this shortcoming, 592ec63b38 (fsck: mention file path for index
errors, 2023-02-24) enhanced the output to mention the path of the index
when the problem is detected in some other worktree:

    missing blob 1234abcd (.git/worktrees/wt/index:file)

Unfortunately, the variable in fsck_index() which controls whether the
index path should be shown is misleadingly named "is_main_index" which
can be misunderstood as referring to the main worktree (i.e. the one
housing the .git/ repository) rather than to the current worktree (i.e.
the one in which `git fsck` was invoked). Avoid such potential confusion
by choosing a name more reflective of its actual purpose.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-29 13:58:57 -07:00
Johannes Schindelin
2ee045eea1 commit -a -m: allow the top-level tree to become empty again
In 03267e8656 (commit: discard partial cache before (re-)reading it,
2022-11-08), a memory leak was plugged by discarding any partial index
before re-reading it.

The problem with this memory leak fix is that it was based on an
incomplete understanding of the logic introduced in 7168624c35 (Do not
generate full commit log message if it is not going to be used,
2007-11-28).

That logic was introduced to add a shortcut when committing without
editing the commit message interactively. A part of that logic was to
ensure that the index was read into memory:

	if (!active_nr && read_cache() < 0)
		die(...)

Translation to English: If the index has not yet been read, read it, and
if that fails, error out.

That logic was incorrect, though: It used `!active_nr` as an indicator
that the index was not yet read. Usually this is not a problem because
in the vast majority of instances, the index contains at least one
entry.

And it was natural to do it this way because at the time that condition
was introduced, the `index_state` structure had no explicit flag to
indicate that it was initialized: This flag was only introduced in
913e0e99b6 (unpack_trees(): protect the handcrafted in-core index from
read_cache(), 2008-08-23), but that commit did not adjust the code path
where no index file was found and a new, pristine index was initialized.

Now, when the index does not contain any entry (which is quite
common in Git's test suite because it starts quite a many repositories
from scratch), subsequent calls to `do_read_index()` will mistake the
index not to be initialized, and read it again unnecessarily.

This is a problem because after initializing the empty index e.g. the
`cache_tree` in that index could have been initialized before a
subsequent call to `do_read_index()` wants to ensure an initialized
index. And if that subsequent call mistakes the index not to have been
initialized, it would lead to leaked memory.

The correct fix for that memory leak is to adjust the condition so that
it does not mistake `active_nr == 0` to mean that the index has not yet
been read.

Using the `initialized` flag instead, we avoid that mistake, and as a
bonus we can fix a bug at the same time that was introduced by the
memory leak fix: When deleting all tracked files and then asking `git
commit -a -m ...` to commit the result, Git would internally update the
index, then discard and re-read the index undoing the update, and fail
to commit anything.

This fixes https://github.com/git-for-windows/git/issues/4462

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-29 12:20:04 -07:00
Glen Choo
8868b1ebfb config: pass kvi to die_bad_number()
Plumb "struct key_value_info" through all code paths that end in
die_bad_number(), which lets us remove the helper functions that read
analogous values from "struct config_reader". As a result, nothing reads
config_reader.config_kvi any more, so remove that too.

In config.c, this requires changing the signature of
git_configset_get_value() to 'return' "kvi" in an out parameter so that
git_configset_get_<type>() can pass it to git_config_<type>(). Only
numeric types will use "kvi", so for non-numeric types (e.g.
git_configset_get_string()), pass NULL to indicate that the out
parameter isn't needed.

Outside of config.c, config callbacks now need to pass "ctx->kvi" to any
of the git_config_<type>() functions that parse a config string into a
number type. Included is a .cocci patch to make that refactor.

The only exceptional case is builtin/config.c, where git_config_<type>()
is called outside of a config callback (namely, on user-provided input),
so config source information has never been available. In this case,
die_bad_number() defaults to a generic, but perfectly descriptive
message. Let's provide a safe, non-NULL for "kvi" anyway, but make sure
not to change the message.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-28 14:06:40 -07:00
Glen Choo
26b669324b config.c: pass ctx with CLI config
Pass config_context when parsing CLI config. To provide the .kvi member,
refactor out kvi_from_param() from the logic that caches CLI config in
configsets. Now that config_context and config_context.kvi is always
present when config machinery calls config callbacks, plumb "kvi" so
that we can remove all calls of current_config_scope() except for
trace2/*.c (which will be handled in a later commit), and remove all
other current_config_*() (the functions themselves and their calls).
Note that this results in .kvi containing a different, more complete
set of information than the mocked up "struct config_source" in
git_config_from_parameters().

Plumbing "kvi" reveals a few places where we've been doing the wrong
thing:

* git_config_parse_parameter() hasn't been setting config source
  information, so plumb "kvi" there too.

* Several sites in builtin/config.c have been calling current_config_*()
  functions outside of config callbacks (indirectly, via the
  format_config() helper), which means they're reading state that isn't
  set correctly:

  * "git config --get-urlmatch --show-scope" iterates config to collect
    values, but then attempts to display the scope after config
    iteration, causing the "unknown" scope to be shown instead of the
    config file's scope. It's clear that this wasn't intended: we knew
    that "--get-urlmatch" couldn't show config source metadata, which is
    why "--show-origin" was marked incompatible with "--get-urlmatch"
    when it was introduced [1]. It was most likely a mistake that we
    allowed "--show-scope" to sneak through.

    Fix this by copying the "kvi" value in the collection phase so that
    it can be read back later. This means that we can now support "git
    config --get-urlmatch --show-origin", but that is left unchanged
    for now.

  * "git config --default" doesn't have config source metadata when
    displaying the default value, so "--show-scope" also results in
    "unknown", and "--show-origin" results in a BUG(). Fix this by
    treating the default value as if it came from the command line (e.g.
    like we do with "git -c" or "git config --file"), using
    kvi_from_param().

[1] https://lore.kernel.org/git/20160205112001.GA13397@sigill.intra.peff.net/

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-28 14:06:39 -07:00
Glen Choo
6021e1d158 config.c: pass ctx in configsets
Pass config_context to config callbacks in configset_iter(), trivially
setting the .kvi member to the cached key_value_info. Then, in config
callbacks that are only used with configsets, use the .kvi member to
replace calls to current_config_*(), and delete current_config_line()
because it has no remaining callers.

This leaves builtin/config.c and config.c as the only remaining users of
current_config_*().

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-28 14:06:39 -07:00
Glen Choo
a4e7e317f8 config: add ctx arg to config_fn_t
Add a new "const struct config_context *ctx" arg to config_fn_t to hold
additional information about the config iteration operation.
config_context has a "struct key_value_info kvi" member that holds
metadata about the config source being read (e.g. what kind of config
source it is, the filename, etc). In this series, we're only interested
in .kvi, so we could have just used "struct key_value_info" as an arg,
but config_context makes it possible to add/adjust members in the future
without changing the config_fn_t signature. We could also consider other
ways of organizing the args (e.g. moving the config name and value into
config_context or key_value_info), but in my experiments, the
incremental benefit doesn't justify the added complexity (e.g. a
config_fn_t will sometimes invoke another config_fn_t but with a
different config value).

In subsequent commits, the .kvi member will replace the global "struct
config_reader" in config.c, making config iteration a global-free
operation. It requires much more work for the machinery to provide
meaningful values of .kvi, so for now, merely change the signature and
call sites, pass NULL as a placeholder value, and don't rely on the arg
in any meaningful way.

Most of the changes are performed by
contrib/coccinelle/config_fn_ctx.pending.cocci, which, for every
config_fn_t:

- Modifies the signature to accept "const struct config_context *ctx"
- Passes "ctx" to any inner config_fn_t, if needed
- Adds UNUSED attributes to "ctx", if needed

Most config_fn_t instances are easily identified by seeing if they are
called by the various config functions. Most of the remaining ones are
manually named in the .cocci patch. Manual cleanups are still needed,
but the majority of it is trivial; it's either adjusting config_fn_t
that the .cocci patch didn't catch, or adding forward declarations of
"struct config_context ctx" to make the signatures make sense.

The non-trivial changes are in cases where we are invoking a config_fn_t
outside of config machinery, and we now need to decide what value of
"ctx" to pass. These cases are:

- trace2/tr2_cfg.c:tr2_cfg_set_fl()

  This is indirectly called by git_config_set() so that the trace2
  machinery can notice the new config values and update its settings
  using the tr2 config parsing function, i.e. tr2_cfg_cb().

- builtin/checkout.c:checkout_main()

  This calls git_xmerge_config() as a shorthand for parsing a CLI arg.
  This might be worth refactoring away in the future, since
  git_xmerge_config() can call git_default_config(), which can do much
  more than just parsing.

Handle them by creating a KVI_INIT macro that initializes "struct
key_value_info" to a reasonable default, and use that to construct the
"ctx" arg.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-28 14:06:39 -07:00
Glen Choo
97eeeea2dc config: inline git_color_default_config
git_color_default_config() is a shorthand for calling two other config
callbacks. There are no other non-static functions that do this and it
will complicate our refactoring of config_fn_t so inline it instead.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-28 14:06:38 -07:00
brian m. carlson
ed773a18c6 var: add config file locations
Much like with attributes files, sometimes programs would like to know
the location of configuration files at the global or system levels.
However, it isn't always clear where these may live, especially for the
system file, which may have been hard-coded at compile time or computed
dynamically based on the runtime prefix.

Since other parties cannot intuitively know how Git was compiled and
where it looks for these files, help them by providing variables that
can be queried.  Because we have multiple paths for global config
values, print them in order from highest to lowest priority, and be sure
to split on newlines so that "git var -l" produces two entries for the
global value.

However, be careful not to split all values on newlines, since our
editor values could well contain such characters, and we don't want to
split them in such a case.

Note in the documentation that some values may contain multiple paths
and that callers should be prepared for that fact.  This helps people
write code that will continue to work in the event we allow multiple
items elsewhere in the future.

Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-27 11:31:06 -07:00
brian m. carlson
576a37fccb var: add attributes files locations
Currently, there are some programs which would like to read and parse
the gitattributes files at the global or system levels.  However, it's
not always obvious where these files live, especially for the system
file, which may have been hard-coded at compile time or computed
dynamically based on the runtime prefix.

It's not reasonable to expect all callers of Git to intuitively know
where the Git distributor or user has configured these locations to
be, so add some entries to allow us to determine their location.  Honor
the GIT_ATTR_NOSYSTEM environment variable if one is specified.  Expose
the accessor functions in a way that we can reuse them from within the
var code.

In order to make our paths consistent on Windows and also use the same
form as paths use in "git rev-parse", let's normalize the path before we
return it.  This results in Windows-style paths that use slashes, which
is convenient for making our tests function in a consistent way across
platforms.  Note that this requires that some of our values be freed, so
let's add a flag about whether the value needs to be freed and use it
accordingly.

Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-27 11:31:06 -07:00
brian m. carlson
cdd489eaf9 var: adjust memory allocation for strings
Right now, all of our values are constants whose allocation is managed
elsewhere.  However, in the future, we'll have some variables whose
memory we will need to free.  To keep things consistent, let's make each
of our functions allocate its own memory and make the caller responsible
for freeing it.

Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-27 11:31:06 -07:00
brian m. carlson
f74c90dcf7 var: format variable structure with C99 initializers
Right now, we have only two items in our variable struct.  However, in
the future, we're going to add two more items.  To help keep our diffs
nice and tidy and make this structure easier to read, switch to use
C99-style initializers for our data.

Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-27 11:31:06 -07:00
brian m. carlson
1e65721227 var: add support for listing the shell
On most Unix systems, finding a suitable shell is easy: one simply uses
"sh" with an appropriate PATH value.  However, in many Windows
environments, the shell is shipped alongside Git, and it may or may not
be in PATH, even if Git is.

In such an environment, it can be very helpful to query Git for the
shell it's using, since other tools may want to use the same shell as
well.  To help them out, let's add a variable, GIT_SHELL_PATH, that
points to the location of the shell.

On Unix, we know our shell must be executable to be functional, so
assume that the distributor has correctly configured their environment,
and use that as a basic test.  On Git for Windows, we know that our
shell will be one of a few fixed values, all of which end in "sh" (such
as "bash").  This seems like it might be a nice test on Unix as well,
since it is customary for all shells to end in "sh", but there probably
exist such systems that don't have such a configuration, so be careful
here not to break them.

Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-27 11:31:05 -07:00
Jeff King
4db16f58c7 var: mark unused parameters in git_var callbacks
We abstract the set of variables into a table, with a "read" callback to
provide the value of each. Each callback takes a "flag" argument, but
most callbacks don't make use of it.

This flag is a bit odd. It may be set to IDENT_STRICT, which make sense
for ident-based callbacks, but is just confusing for things like
GIT_EDITOR.

At first glance, it seems like this is just a hack to let us directly
stick the generic git_committer_info() and git_author_info() functions
into our table. And we'd be better off to wrap them with local functions
which pass IDENT_STRICT, and have our callbacks take no option at all.

But that doesn't quite work. We pass IDENT_STRICT when the caller asks
for a specific variable, but otherwise do not (so that "git var -l" does
not bail if the committer ident cannot be formed).

So we really do need to pass in the flag to each invocation, even if the
individual callback doesn't care about it. Let's mark the unused ones so
that -Wunused-parameter does not complain. And while we're here, let's
rename them so that it's clear that the flag values we get will be from
the IDENT_* set. That may prevent confusion for future readers of the
code.

Another option would be to define our own local "strict" flag for the
callbacks, and then have wrappers that translate that to IDENT_STRICT
where it matters. But that would be more boilerplate for little gain
(most functions would still ignore the "strict" flag anyway).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-27 11:31:05 -07:00
Junio C Hamano
e224f26892 Merge branch 'tb/collect-pack-filenames-fix'
Avoid breakage of "git pack-objects --cruft" due to inconsistency
between the way the code enumerates packfiles in the repository.

* tb/collect-pack-filenames-fix:
  builtin/repack.c: only collect fully-formed packs
2023-06-26 09:29:50 -07:00
Junio C Hamano
8d5c5a05d7 Merge branch 'jk/commit-use-no-divider-with-interpret-trailers'
When "git commit --trailer=..." invokes the interpret-trailers
machinery, it knows what it feeds to interpret-trailers is a full
log message without any patch, but failed to express that by
passing the "--no-divider" option, which has been corrected.

* jk/commit-use-no-divider-with-interpret-trailers:
  commit: pass --no-divider to interpret-trailers
2023-06-26 09:29:49 -07:00
Junio C Hamano
4e4fc50cf7 Merge branch 'rj/leakfixes'
Leakfixes

* rj/leakfixes:
  tests: mark as passing with SANITIZE=leak
  config: fix a leak in git_config_copy_or_rename_section_in_file
  branch: fix a leak in cmd_branch
  branch: fix a leak in setup_tracking
  rev-parse: fix a leak with --abbrev-ref
  branch: fix a leak in setup_tracking
  branch: fix a leak in check_tracking_branch
  branch: fix a leak in inherit_tracking
  branch: fix a leak in dwim_and_setup_tracking
  remote: fix a leak in query_matches_negative_refspec
  config: fix a leak in git_config_copy_or_rename_section_in_file
2023-06-23 11:21:17 -07:00
Junio C Hamano
a813d9e239 Merge branch 'sl/worktree-sparse'
"git worktree" learned to work better with sparse index feature.

* sl/worktree-sparse:
  worktree: integrate with sparse-index
2023-06-23 11:21:16 -07:00
Junio C Hamano
5ee8fcdabc Merge branch 'mh/credential-erase-improvements'
* mh/credential-erase-improvements:
  credential: erase all matching credentials
  credential: avoid erasing distinct password
2023-06-23 11:21:16 -07:00
Junio C Hamano
644591bd06 Merge branch 'ds/add-i-color-configuration-fix'
The reimplemented "git add -i" did not honor color.ui configuration.

* ds/add-i-color-configuration-fix:
  add: test use of brackets when color is disabled
  add: check color.ui for interactive add
2023-06-22 16:29:06 -07:00
Junio C Hamano
a9ea4c23dc Merge branch 'ps/cat-file-null-output'
"git cat-file --batch" and friends learned "-Z" that uses NUL
delimiter for both input and output.

* ps/cat-file-null-output:
  cat-file: add option '-Z' that delimits input and output with NUL
  cat-file: simplify reading from standard input
  strbuf: provide CRLF-aware helper to read until a specified delimiter
  t1006: modernize test style to use `test_cmp`
  t1006: don't strip timestamps from expected results
2023-06-22 16:29:06 -07:00
Junio C Hamano
d9f9f6b358 Merge branch 'ds/disable-replace-refs'
Introduce a mechanism to disable replace refs globally and per
repository.

* ds/disable-replace-refs:
  repository: create read_replace_refs setting
  replace-objects: create wrapper around setting
  repository: create disable_replace_refs()
2023-06-22 16:29:06 -07:00
Junio C Hamano
4dd0469328 Merge branch 'ja/worktree-orphan'
'git worktree add' learned how to create a worktree based on an
orphaned branch with `--orphan`.

* ja/worktree-orphan:
  worktree add: emit warn when there is a bad HEAD
  worktree add: extend DWIM to infer --orphan
  worktree add: introduce "try --orphan" hint
  worktree add: add --orphan flag
  t2400: add tests to verify --quiet
  t2400: refactor "worktree add" opt exclusion tests
  t2400: cleanup created worktree in test
  worktree add: include -B in usage docs
2023-06-22 16:29:05 -07:00
Elijah Newren
68d686460f fsmonitor-ll.h: split this header out of fsmonitor.h
This creates a new fsmonitor-ll.h with most of the functions from
fsmonitor.h, though it leaves three inline functions where they were.
Two-thirds of the files that previously included fsmonitor.h did not
need those three inline functions or the six extra includes those inline
functions required, so this allows them to only include the lower level
header.

Diff best viewed with `--color-moved`.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:54 -07:00
Elijah Newren
a034e9106f object-store-ll.h: split this header out of object-store.h
The vast majority of files including object-store.h did not need dir.h
nor khash.h.  Split the header into two files, and let most just depend
upon object-store-ll.h, while letting the two callers that need it
depend on the full object-store.h.

After this patch:
    $ git grep -h include..object-store | sort | uniq -c
          2 #include "object-store.h"
        129 #include "object-store-ll.h"

Diff best viewed with `--color-moved`.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:54 -07:00
Elijah Newren
6723899932 merge-ll: rename from ll-merge
A long term (but rather minor) pet-peeve of mine was the name
ll-merge.[ch].  I thought it made it harder to realize what stuff was
related to merging when I was working on the merge machinery and trying
to improve it.

Further, back in d1cbe1e6d8 ("hash-ll.h: split out of hash.h to remove
dependency on repository.h", 2023-04-22), we have split the portions of
hash.h that do not depend upon repository.h into a "hash-ll.h" (due to
the recommendation to use "ll" for "low-level" in its name[1], but which
I used as a suffix precisely because of my distaste for "ll-merge").
When we discussed adding additional "*-ll.h" files, a request was made
that we use "ll" consistently as either a prefix or a suffix.  Since it
is already in use as both a prefix and a suffix, the only way to do so
is to rename some files.

Besides my distaste for the ll-merge.[ch] name, let me also note that
the files
  ll-fsmonitor.h, ll-hash.h, ll-merge.h, ll-object-store.h, ll-read-cache.h
would have essentially nothing to do with each other and make no sense
to group.  But giving them the common "ll-" prefix would group them.  Using
"-ll" as a suffix thus seems just much more logical to me.  Rename
ll-merge.[ch] to merge-ll.[ch] to achieve this consistency, and to
ensure we get a more logical grouping of files.

[1] https://lore.kernel.org/git/kl6lsfcu1g8w.fsf@chooglen-macbookpro.roam.corp.google.com/

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:54 -07:00
Elijah Newren
dd77d58795 git-compat-util.h: remove unneccessary include of wildmatch.h
The include of wildmatch.h in git-compat-util.h was added in cebcab189a
(Makefile: add USE_WILDMATCH to use wildmatch as fnmatch, 2013-01-01) as
a way to be able to compile-time force any calls to fnmatch() to instead
invoke wildmatch().  The defines and inline function were removed in
70a8fc999d (stop using fnmatch (either native or compat), 2014-02-15),
and this include in git-compat-util.h has been unnecessary ever since.

Remove the include from git-compat-util.h, but add it to the .c files
that had omitted the direct #include they needed.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:54 -07:00
Elijah Newren
88e4e18325 builtin.h: remove unneccessary includes
This also made it clear that a few .c files under builtin/ were
depending upon some headers but had forgotten to #include them.  Add the
missing direct includes while at it.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:54 -07:00
Elijah Newren
df6e874496 diff.h: remove unnecessary include of oidset.h
This also made it clear that several .c files depended upon various
things that oidset included, but had omitted the direct #include for
those headers.  Add those now.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
c339932bd8 repository: remove unnecessary include of path.h
This also made it clear that several .c files that depended upon path.h
were missing a #include for it; add the missing includes while at it.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
0fd2e21571 log-tree: replace include of revision.h with simple forward declaration
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
bc5c5ec044 cache.h: remove this no-longer-used header
Since this header showed up in some places besides just #include
statements, update/clean-up/remove those other places as well.

Note that compat/fsmonitor/fsm-path-utils-darwin.c previously got
away with violating the rule that all files must start with an include
of git-compat-util.h (or a short-list of alternate headers that happen
to include it first).  This change exposed the violation and caused it
to stop building correctly; fix it by having it include
git-compat-util.h first, as per policy.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
08c46a499a read-cache*.h: move declarations for read-cache.c functions from cache.h
For the functions defined in read-cache.c, move their declarations from
cache.h to a new header, read-cache-ll.h.  Also move some related inline
functions from cache.h to read-cache.h.  The purpose of the
read-cache-ll.h/read-cache.h split is that about 70% of the sites don't
need the inline functions and the extra headers they include.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
750324ddb8 merge.h: move declarations for merge.c from cache.h
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
fbffdfb11c preload-index.h: move declarations for preload-index.c from elsewhere
We already have a preload-index.c file; move the declarations for the
functions in that file into a new preload-index.h.  These were
previously split between cache.h and repository.h.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
baf889c2cd sparse-index.h: move declarations for sparse-index.c from cache.h
Note in particular that this reverses the decision made in 118a2e8bde
("cache: move ensure_full_index() to cache.h", 2021-04-01).

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
f5653856c2 name-hash.h: move declarations for name-hash.c from cache.h
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
6cee5ebc7a read-cache: move shared add/checkout/commit code
The function add_files_to_cache(), plus associated helper functions,
were defined in builtin/add.c, but also shared with builtin/checkout.c
and builtin/commit.c.  Move these shared functions to read-cache.c.

Diff best viewed with `--color-moved`.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
50c37ee839 add: modify add_files_to_cache() to avoid globals
The function add_files_to_cache() is used by all three of builtin/{add,
checkout, commit}.c.  That suggests this is common library code, and
should be moved somewhere else, like read-cache.c.  However, the
function and its helpers made use of two global variables that made
straight code movement difficult:
  * the_index
  * include_sparse
The latter was perhaps more problematic since it was only accessible in
builtin/add.c but was still affecting builtin/checkout.c and
builtin/commit.c without this fact being very clear from the code.  I'm
not sure if the other two callers would want to add a `--sparse` flag
similar to add.c to get non-default behavior, but exposing this
dependence will help if we ever decide we do want to add such a flag.

Modify add_files_to_cache() and its helpers to accept the necessary
arguments instead of relying on globals.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
1a40e7be6c read-cache: move shared commit and ls-files code
The function overlay_tree_on_index(), plus associated helper functions,
were defined in builtin/ls-files.c, but also shared with
builtin/commit.c.  Move these shared functions to read-cache.c.

Diff best viewed with `--color-moved`.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00
Elijah Newren
e8cf8ef507 setup: adopt shared init-db & clone code
The functions init_db() and initialize_repository_version() were shared
by builtin/init-db.c and builtin/clone.c, and declared in cache.h.

Move these functions, plus their several helpers only used by these
functions, to setup.[ch].

Diff best viewed with `--color-moved`.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-21 13:39:53 -07:00