The documentation of -S and -G is very sketchy. Completely rewrite the
sections in Documentation/diff-options.txt and
Documentation/gitdiffcore.txt.
References:
52e9578 ([PATCH] Introducing software archaeologist's tool "pickaxe".)
f506b8e (git log/diff: add -G<regexp> that greps in the patch text)
Inputs-from: Phil Hord <phil.hord@gmail.com>
Co-authored-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, diffcore-pickaxe reports two distinct errors for the same
user error:
$ git log --pickaxe-regex -S'\1'
fatal: invalid pickaxe regex: Invalid back reference
$ git log -G'\1'
fatal: invalid log-grep regex: Invalid back reference
This "log-grep" was only an internal name for the -G feature during
development, and invite confusion with "git log --grep=<pattern>".
Change the error messages to say "invalid regex".
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git difftool' is clearly a frontend to 'git diff' and is used in
exactly the same way, but it uses a misleadingly named completion
function __git_complete_file. It happens to work only because it
calls __git_complete_revlist_file that completes both revs and
paths.
Change it to use __git_complete_revlist_file, just like 'git diff'.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Official support for specifying --work-tree/GIT_WORK_TREE without
--git-dir/GIT_DIR was added with v1.7.4-rc3~2^2~2. Update description
of GIT_WORK_TREE to reflect this.
Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We are dealing with the 'istate' index, not 'the_index'.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
First expected, then actual.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This adds a basic test for --suppress-cc=self
option of git send-email.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
MinGW's bash does not recognize an exit code -1 as failure. See also
47e3de0e (MinGW: truncate exit()'s argument to lowest 8 bits) and 2488df84
(builtin run_command: do not exit with -1). Exit code 1 is good enough.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It's _very_ slow in many cases, and there's really no point in fetching
*everything* from the remote just for completion. In many cases it might
be faster for the user to type the whole thing.
If the user manually specifies 'refs/*', then the full ls-remote
completion is triggered.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* tr/line-log:
git-log(1): remove --full-line-diff description
line-log: fix documentation formatting
log -L: improve comments in process_all_files()
log -L: store the path instead of a diff_filespec
log -L: test merge of parallel modify/rename
t4211: pass -M to 'git log -M -L...' test
log -L: fix overlapping input ranges
log -L: check range set invariants when we look it up
Speed up log -L... -M
log -L: :pattern:file syntax to find by funcname
Implement line-history search (git log -L)
Export rewrite_parents() for 'log -L'
Refactor parse_loc
* rs/tar-tests:
t5000: test long filenames
t5000: simplify tar-tree tests
t5000: use check_tar for prefix test
t5000: factor out check_tar
t5000, t5003: create directories for extracted files lazily
t5000: integrate export-subst tests into regular tests
"git merge @{-1}~22" was rewritten to "git merge frotz@{1}~22"
incorrectly when your previous branch was "frotz" (it should be
rewritten to "git merge frotz~22" instead).
* jc/strbuf-branchname-fix:
strbuf_branchname(): do not double-expand @{-1}~22
"git fetch origin master" unlike "git fetch origin" or "git fetch"
did not update "refs/remotes/origin/master"; this was an early
design decision to keep the update of remote tracking branches
predictable, but in practice it turns out that people find it more
convenient to opportunisticly update them whenever we have a chance,
and we have been updating them when we run "git push" which already
breaks the original "predictability" anyway.
Now such a fetch does update refs/remotes/origin/master.
* jk/fetch-always-update-tracking:
fetch: don't try to update unfetched tracking refs
fetch: opportunistically update tracking refs
refactor "ref->merge" flag
fetch/pull doc: untangle meaning of bare <ref>
t5510: start tracking-ref tests from a known state
Update the test coverage support that was left to bitrot for some
time.
* tr/coverage:
coverage: build coverage-untested-functions by default
coverage: set DEFAULT_TEST_TARGET to avoid using prove
coverage: do not delete .gcno files before building
coverage: split build target into compile and test
"git diff -c -p" was not showing a deleted line from a hunk when
another hunk immediately begins where the earlier one ends.
* mk/combine-diff-context-horizon-fix:
combine-diff.c: Fix output when changes are exactly 3 lines apart
"git log --ancestry-path A...B" did not work as expected, as it did
not pay attention to the fact that the merge base between A and B
was the bottom of the range being specified.
* kb/ancestry-path-threedots:
revision.c: treat A...B merge bases as if manually specified
t6019: demonstrate --ancestry-path A...B breakage
Newer MacOS X encourages the programs to compile and link with
their CommonCrypto, not with OpenSSL.
* da/darwin:
imap-send: eliminate HMAC deprecation warnings on Mac OS X
cache.h: eliminate SHA-1 deprecation warnings on Mac OS X
Makefile: add support for Apple CommonCrypto facility
Makefile: fix default regex settings on Darwin
Mac OS X does not like to write(2) more than INT_MAX number of
bytes.
* fc/macos-x-clipped-write:
compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
Detect "git merge foo" that might have meant "git merge origin/foo"
and give an error message that is more specific than "foo is not
something we can merge".
* vv/help-unknown-ref:
merge: use help_unknown_ref()
help: add help_unknown_ref()
"git clone foo/bar:baz" cannot be a request to clone from a remote
over git-over-ssh specified in the scp style. Detect this case and
clone from a local repository at "foo/bar:baz".
* nd/clone-local-with-colon:
clone: allow cloning local paths with colons in them
Optimization for fast-export by avoiding unnecessarily resolving
arbitrary object name and parsing object when only presence and
type information is necessary, etc.
* fc/fast-export-persistent-marks:
fast-{import,export}: use get_sha1_hex() to read from marks file
fast-export: don't parse commits while reading marks file
fast-export: do not parse non-commit objects while reading marks file
Fixes tests added in 1.8.2 era that are broken on BSDs.
* rs/empty-archive:
t5004: resurrect original empty tar archive test
t5004: avoid using tar for checking emptiness of archive
The merge functions duplicate entries as needed and they don't free
them. Release them in unpack_nondirectories, the same function
where they were allocated, after we're done.
As suggested by Felipe, use the same loop style (zero-based for loop)
for freeing as for allocating.
Improved-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change the type merge_fn_t to accept the array of cache_entry pointers
as const pointers to const pointers. This documents the fact that the
merge functions don't modify the cache_entry contents or replace any of
the pointers in the array.
Only a single cast is necessary in unpack_nondirectories because adding
two const modifiers at once is not allowed in C. The cast is safe in
that it doesn't mask any modfication; call_unpack_fn only needs the
array for reading.
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add const to struct cache_entry pointers throughout the tree which are
only used for reading. This allows callers to pass in const pointers.
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Duplicate the merge entry right away and work with that instead of
modifying the entry we got and duplicating it only at the end of
the function. Then mark that pointer const to document that we
don't modify the referenced cache_entry.
This change is safe because all existing merge functions call
merged_entry just before returning (or not at all), i.e. they don't
care about changes to the referenced cache_entry after the call.
unpack_nondirectories and unpack_index_entry, which call the merge
functions through call_unpack_fn, aren't interested in such changes
neither.
The change complicates merged_entry a bit because we have to free the
copy if we error out, but allows callers to pass a const pointer.
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
While we're add it, mark the struct cache_entry pointer of add_entry
const because we only read from it and this allows callers to pass in
const pointers.
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
ie_match_stat and ie_modified only derefence their struct cache_entry
pointers for reading. Add const to the parameter declaration here and
do the same for the static helper function used by them, as it's the
same there as well. This allows callers to pass in const pointers.
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add const for pointers that are only dereferenced for reading by the
inline functions copy_cache_entry and ce_mode_from_stat. This allows
callers to pass in const pointers.
Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The lifetime of the memory pointed to by the refname and sha1
arguments to each_ref_fn was never documented, but some callers used
to assume that it was essentially permanent. In fact the API does
*not* guarantee that these objects live beyond a single callback
invocation.
In the current code, the lifetimes are bound together with the
lifetimes of the ref_caches. Since these are usually long, the
callers usually got away with their sloppiness. But even today, if a
ref_cache is invalidated the memory can be freed. And planned changes
to reference caching, needed to eliminate race conditions, will
probably need to shorten the lifetimes of these objects.
The commits leading up to this have (hopefully) fixed all of the
callers of the for_each_ref()-like functions. This commit does the
last step: documents what each_ref_fn callbacks can assume about
object lifetimes.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The lifetime of the sha1 parameter passed to an each_ref_fn callback
is not guaranteed, so make a copy for later use.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The each_ref_fn add_existing() adds refnames to the existing_refs
list. But the lifetimes of these refnames is not guaranteed by the
refs API, so configure the string_list to make copies as it adds them.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since string_list_add_one_ref() adds refname to the string list, but
the lifetime of refname is limited, it is important that the
string_list passed to string_list_add_one_ref() has strdup_strings
set. Document this fact.
All current callers do the right thing.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Its lifetime is not guaranteed, so make a copy. Free the memory when
the string_list is cleared.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, the memory management of the object_array_entry::name
field was inconsistent and undocumented. object_array_entries are
ultimately created by a single function, add_object_array_with_mode(),
which has an argument "const char *name". This function used to
simply set the name field to reference the string pointed to by the
name parameter, and nobody on the object_array side ever freed the
memory. Thus, it assumed that the memory for the name field would be
managed by the caller, and that the lifetime of that string would be
at least as long as the lifetime of the object_array_entry. But
callers were inconsistent:
* Some passed pointers to constant strings or argv entries, which was
OK.
* Some passed pointers to newly-allocated memory, but didn't arrange
for the memory ever to be freed.
* Some passed the return value of sha1_to_hex(), which is a pointer to
a statically-allocated buffer that can be overwritten at any time.
* Some passed pointers to refnames that they received from a
for_each_ref()-type iteration, but the lifetimes of such refnames is
not guaranteed by the refs API.
Bring consistency to this mess by changing object_array to make its
own copy for the object_array_entry::name field and free this memory
when an object_array_entry is deleted from the array.
Many callers were passing the empty string as the name parameter, so
as a performance optimization, treat the empty string specially.
Instead of making a copy, store a pointer to a statically-allocated
empty string to object_array_entry::name. When deleting such an
entry, skip the free().
Change the callers that were already passing copies to
add_object_array_with_mode() to either skip the copy, or (if the
memory needed to be allocated anyway) freeing the memory itself.
A part of this commit effectively reverts
70d26c6e76 read_revisions_from_stdin: make copies for handle_revision_arg
because the copying introduced by that commit (which is still
necessary) is now done at a deeper level.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
