With the codebase firmly C99 compatible and most compilers supporting
newer versions by default, it could help bring visibility to problems.
Reverse the DEVOPTS=pedantic flag to provide a fallback for people stuck
with gcc < 5 or some other compiler that either doesn't support this flag
or has issues with it, and while at it also enable -Wpedantic which used
to be controversial[1] when Apple compilers and clang had widely divergent
version numbers.
Ideally any compiler found to have issues with these flags will be added
to an exception, and indeed, one was added to safely process windows
headers that would use non standard print identifiers, but it is expected
that more will be needed, so it could be considered a weather balloon.
In preparation to building with pedantic mode enabled, change a couple
of places where the current mingw gcc compiler provided with the SDK
reports issues.
A full fix for the incompatible use of (void *) to store function
pointers has been punted, with the minimal change to instead use a
generic function pointer (FARPROC), and therefore the (hopefully)
temporary need to disable incompatible pointer warnings.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
gettext: remove optional non-standard parens in N_() definition
Remove the USE_PARENS_AROUND_GETTEXT_N compile-time option which was
meant to catch an inadvertent mistake which is too obscure to
maintain this facility.
The backstory of how USE_PARENS_AROUND_GETTEXT_N came about is: When I
added the N_() macro in 65784830366 (i18n: add no-op _() and N_()
wrappers, 2011-02-22) it was defined as:
#define N_(msgid) (msgid)
This is non-standard C, as was noticed and fixed in 642f85faab2 (i18n:
avoid parenthesized string as array initializer, 2011-04-07).
I.e. this needed to be defined as:
#define N_(msgid) msgid
Then in e62cd35a3e8 (i18n: log: mark parseopt strings for translation,
2012-08-20) when "builtin_log_usage" was marked for translation the
string concatenation for passing to usage() added in 1c370ea4e51
(Show usage string for 'git log -h', 'git show -h' and 'git diff -h',
2009-08-06) was faithfully preserved:
This was then fixed to be the expected array of usage strings in e66dc0cc4b1 (log.c: fix translation markings, 2015-01-06) rather than
a string with multiple "\n"-delimited usage strings, and finally in 290c8e7a3fe (gettext.h: add parentheses around N_ expansion if
supported, 2015-01-11) USE_PARENS_AROUND_GETTEXT_N was added to ensure
this mistake didn't happen again.
I think that even if this was a N_()-specific issue this
USE_PARENS_AROUND_GETTEXT_N facility wouldn't be worth it, the issue
would be too rare to worry about.
But I also think that 290c8e7a3fe which introduced
USE_PARENS_AROUND_GETTEXT_N misattributed the problem. The issue
wasn't with the N_() macro added in e62cd35a3e8, but that before the
N_() macro existed in the codebase the initial migration to
parse_options() in 1c370ea4e51 continued passsing in a "\n"-delimited
string, when the new API it was migrating to supported and expected
the passing of an array.
Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current implementation of GIT_TEST_FAIL_PREREQS is broken in
that checking for the lack of a prerequisite would not work. Avoid
the use of "if ! test_have_prereq X" in a test script.
* bc/t5607-avoid-broken-test-fail-prereqs:
t5607: avoid using prerequisites to select algorithm
Junio C Hamano [Mon, 30 Aug 2021 23:06:05 +0000 (16:06 -0700)]
Merge branch 'jk/range-diff-fixes'
"git range-diff" code clean-up.
* jk/range-diff-fixes:
range-diff: use ssize_t for parsed "len" in read_patches()
range-diff: handle unterminated lines in read_patches()
range-diff: drop useless "offset" variable from read_patches()
Junio C Hamano [Mon, 30 Aug 2021 23:06:03 +0000 (16:06 -0700)]
Merge branch 'jc/userdiff-pattern-hint'
Remind developers that the userdiff patterns should be kept simple
and permissive, assuming that the contents they apply are always
syntactically correct.
* jc/userdiff-pattern-hint:
userdiff: comment on the builtin patterns
Junio C Hamano [Mon, 30 Aug 2021 23:06:01 +0000 (16:06 -0700)]
Merge branch 'en/merge-strategy-docs'
Documentation updates.
* en/merge-strategy-docs:
Update error message and code comment
merge-strategies.txt: add coverage of the `ort` merge strategy
git-rebase.txt: correct out-of-date and misleading text about renames
merge-strategies.txt: fix simple capitalization error
merge-strategies.txt: avoid giving special preference to patience algorithm
merge-strategies.txt: do not imply using copy detection is desired
merge-strategies.txt: update wording for the resolve strategy
Documentation: edit awkward references to `git merge-recursive`
directory-rename-detection.txt: small updates due to merge-ort optimizations
git-rebase.txt: correct antiquated claims about --rebase-merges
Junio C Hamano [Mon, 30 Aug 2021 23:06:01 +0000 (16:06 -0700)]
Merge branch 'en/pull-conflicting-options'
"git pull" had various corner cases that were not well thought out
around its --rebase backend, e.g. "git pull --ff-only" did not stop
but went ahead and rebased when the history on other side is not a
descendant of our history. The series tries to fix them up.
* en/pull-conflicting-options:
pull: fix handling of multiple heads
pull: update docs & code for option compatibility with rebasing
pull: abort by default when fast-forwarding is not possible
pull: make --rebase and --no-rebase override pull.ff=only
pull: since --ff-only overrides, handle it first
pull: abort if --ff-only is given and fast-forwarding is impossible
t7601: add tests of interactions with multiple merge heads and config
t7601: test interaction of merge/rebase/fast-forward flags and options
Junio C Hamano [Tue, 24 Aug 2021 22:32:41 +0000 (15:32 -0700)]
Merge branch 'ps/fetch-pack-load-refs-optim'
Loading of ref tips to prepare for common ancestry negotiation in
"git fetch-pack" has been optimized by taking advantage of the
commit graph when available.
* ps/fetch-pack-load-refs-optim:
fetch-pack: speed up loading of refs via commit graph
Junio C Hamano [Tue, 24 Aug 2021 22:32:40 +0000 (15:32 -0700)]
Merge branch 'jt/push-negotiation-fixes'
Bugfix for common ancestor negotiation recently introduced in "git
push" code path.
* jt/push-negotiation-fixes:
fetch: die on invalid --negotiation-tip hash
send-pack: fix push nego. when remote has refs
send-pack: fix push.negotiate with remote helper
Junio C Hamano [Tue, 24 Aug 2021 22:32:39 +0000 (15:32 -0700)]
Merge branch 'hn/refs-test-cleanup'
A handful of tests that assumed implementation details of files
backend for refs have been cleaned up.
* hn/refs-test-cleanup:
t6001: avoid direct file system access
t6500: use "ls -1" to snapshot ref database state
t7064: use update-ref -d to remove upstream branch
t1410: mark test as REFFILES
t1405: mark test for 'git pack-refs' as REFFILES
t1405: use 'git reflog exists' to check reflog existence
t2402: use ref-store test helper to create broken symlink
t3320: use git-symbolic-ref rather than filesystem access
t6120: use git-update-ref rather than filesystem access
t1503: mark symlink test as REFFILES
t6050: use git-update-ref rather than filesystem access
Junio C Hamano [Tue, 24 Aug 2021 22:32:39 +0000 (15:32 -0700)]
Merge branch 'en/ort-perf-batch-15'
Final batch for "merge -sort" optimization.
* en/ort-perf-batch-15:
merge-ort: remove compile-time ability to turn off usage of memory pools
merge-ort: reuse path strings in pool_alloc_filespec
merge-ort: store filepairs and filespecs in our mem_pool
diffcore-rename, merge-ort: add wrapper functions for filepair alloc/dealloc
merge-ort: switch our strmaps over to using memory pools
merge-ort: set up a memory pool
merge-ort: add pool_alloc, pool_calloc, and pool_strndup wrappers
diffcore-rename: use a mem_pool for exact rename detection's hashmap
merge-ort: rename str{map,intmap,set}_func()
Junio C Hamano [Tue, 24 Aug 2021 22:32:38 +0000 (15:32 -0700)]
Merge branch 'js/expand-runtime-prefix'
Pathname expansion (like "~username/") learned a way to specify a
location relative to Git installation (e.g. its $sharedir which is
$(prefix)/share), with "%(prefix)".
* js/expand-runtime-prefix:
expand_user_path: allow in-flight topics to keep using the old name
interpolate_path(): allow specifying paths relative to the runtime prefix
Use a better name for the function interpolating paths
expand_user_path(): clarify the role of the `real_home` parameter
expand_user_path(): remove stale part of the comment
tests: exercise the RUNTIME_PREFIX feature
Junio C Hamano [Tue, 24 Aug 2021 22:32:37 +0000 (15:32 -0700)]
Merge branch 'zh/ref-filter-raw-data'
Prepare the "ref-filter" machinery that drives the "--format"
option of "git for-each-ref" and its friends to be used in "git
cat-file --batch".
* zh/ref-filter-raw-data:
ref-filter: add %(rest) atom
ref-filter: use non-const ref_format in *_atom_parser()
ref-filter: --format=%(raw) support --perl
ref-filter: add %(raw) atom
ref-filter: add obj-type check in grab contents
Junio C Hamano [Tue, 24 Aug 2021 22:32:36 +0000 (15:32 -0700)]
Merge branch 'ab/http-drop-old-curl'
Support for ancient versions of cURL library (pre 7.19.4) has been
dropped.
* ab/http-drop-old-curl:
http: rename CURLOPT_FILE to CURLOPT_WRITEDATA
http: drop support for curl < 7.19.3 and < 7.17.0 (again)
http: drop support for curl < 7.19.4
http: drop support for curl < 7.16.0
http: drop support for curl < 7.11.1
Junio C Hamano [Tue, 24 Aug 2021 22:32:35 +0000 (15:32 -0700)]
Merge branch 'ds/add-with-sparse-index'
"git add" can work better with the sparse index.
* ds/add-with-sparse-index:
add: remove ensure_full_index() with --renormalize
add: ignore outside the sparse-checkout in refresh()
pathspec: stop calling ensure_full_index
add: allow operating on a sparse-only index
t1092: test merge conflicts outside cone
Junio C Hamano [Tue, 24 Aug 2021 22:32:35 +0000 (15:32 -0700)]
Merge branch 'jc/bisect-sans-show-branch'
"git bisect" spawned "git show-branch" only to pretty-print the
title of the commit after checking out the next version to be
tested; this has been rewritten in C.
* jc/bisect-sans-show-branch:
bisect: simplify return code from bisect_checkout()
bisect: do not run show-branch just to show the current commit
René Scharfe [Sat, 14 Aug 2021 20:00:38 +0000 (22:00 +0200)]
oidtree: avoid unaligned access to crit-bit tree
The flexible array member "k" of struct cb_node is used to store the key
of the crit-bit tree node. It offers no alignment guarantees -- in fact
the current struct layout puts it one byte after a 4-byte aligned
address, i.e. guaranteed to be misaligned.
oidtree uses a struct object_id as cb_node key. Since cf0983213c (hash:
add an algo member to struct object_id, 2021-04-26) it requires 4-byte
alignment. The mismatch is reported by UndefinedBehaviorSanitizer at
runtime like this:
hash.h:277:2: runtime error: member access within misaligned address 0x00015000802d for type 'struct object_id', which requires 4 byte alignment
0x00015000802d: note: pointer points here
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior hash.h:277:2 in
We can fix that by:
1. eliminating the alignment requirement of struct object_id,
2. providing the alignment in struct cb_node, or
3. avoiding the issue by only using memcpy to access "k".
Currently we only store one of two values in "algo" in struct object_id.
We could use a uint8_t for that instead and widen it only once we add
support for our twohundredth algorithm or so. That would not only avoid
alignment issues, but also reduce the memory requirements for each
instance of struct object_id by ca. 9%.
Supporting keys with alignment requirements might be useful to spread
the use of crit-bit trees. It can be achieved by using a wider type for
"k" (e.g. uintmax_t), using different types for the members "byte" and
"otherbits" (e.g. uint16_t or uint32_t for each), or by avoiding the use
of flexible arrays like khash.h does.
This patch implements the third option, though, because it has the least
potential for causing side-effects and we're close to the next release.
If one of the other options is implemented later as well to get their
additional benefits we can get rid of the extra copies introduced here.
Reported-by: Andrzej Hunt <andrzej@ahunt.org> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jiang Xin [Fri, 13 Aug 2021 23:56:22 +0000 (07:56 +0800)]
Merge branch 'master' of github.com:git/git
* 'master' of github.com:git/git: (51 commits)
Git 2.33-rc2
object-file: use unsigned arithmetic with bit mask
Revert 'diff-merges: let "-m" imply "-p"'
object-store: avoid extra ';' from KHASH_INIT
oidtree: avoid nested struct oidtree_node
Git 2.33-rc1
test: fix for COLUMNS and bash 5
The eighth batch
diff: --pickaxe-all typofix
mingw: align symlinks-related rmdir() behavior with Linux
t7508: avoid non POSIX BRE
use fspathhash() everywhere
t0001: fix broken not-quite getcwd(3) test in bed67874e2
Documentation: render special characters correctly
reset: clear_unpack_trees_porcelain to plug leak
builtin/rebase: fix options.strategy memory lifecycle
builtin/merge: free found_ref when done
builtin/mv: free or UNLEAK multiple pointers at end of cmd_mv
convert: release strbuf to avoid leak
read-cache: call diff_setup_done to avoid leak
...
make sure it uses a supported OS branch and uses all the resources
that can be allocated efficiently.
while only 1GB of memory is needed, 2GB is the minimum for a 2 CPU
machine (the default), but by increasing parallelism wall time has
been reduced by 35%.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teng Long [Thu, 12 Aug 2021 08:59:31 +0000 (16:59 +0800)]
list-objects.c: rename "traverse_trees_and_blobs" to "traverse_non_commits"
Function `traverse_trees_and_blobs` not only works on trees and blobs,
but also on tags, the function name is somewhat misleading. This commit
rename it to `traverse_non_commits`.
Signed-off-by: Teng Long <dyroneteng@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
brian m. carlson [Wed, 11 Aug 2021 23:16:44 +0000 (23:16 +0000)]
t5607: avoid using prerequisites to select algorithm
In this test, we currently use the SHA1 prerequisite to specify the
algorithm we're using to test, since SHA-256 bundles are always v3,
whereas SHA-1 bundles default to v2, and as a result the default output
differs.
However, this causes a problem if we run with GIT_TEST_FAIL_PREREQS set,
since that means that we'll unexpectedly fail the SHA1 prerequisite,
resulting in incorrect expected output. Let's fix this by checking
against the built-in data called "algo", which tells us which algorithm
is in use. This should work in any situation, making our test a little
more robust.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 11 Aug 2021 19:36:17 +0000 (12:36 -0700)]
Merge branch 'cb/many-alternate-optim-fixup'
Build fix.
* cb/many-alternate-optim-fixup:
object-file: use unsigned arithmetic with bit mask
object-store: avoid extra ';' from KHASH_INIT
oidtree: avoid nested struct oidtree_node
Tassilo Horn [Wed, 11 Aug 2021 17:51:04 +0000 (19:51 +0200)]
userdiff: improve java hunk header regex
Currently, the git diff hunk headers show the wrong method signature if the
method has a qualified return type, an array return type, or a generic return
type because the regex doesn't allow dots (.), [], or < and > in the return
type. Also, type parameter declarations couldn't be matched.
Add several t4018 tests asserting the right hunk headers for different cases:
- enum constant change
- change in generic method with bounded type parameters
- change in generic method with wildcard
- field change in a nested class
Signed-off-by: Tassilo Horn <tsdh@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 10 Aug 2021 22:12:01 +0000 (15:12 -0700)]
userdiff: comment on the builtin patterns
Remind developers that they do not need to go overboard to implement
patterns to prepare for invalid constructs. They only have to be
sufficiently permissive, assuming that the payload is syntactically
correct, and that may allow them to be simpler.
Text stolen mostly from, and further improved by, Johannes Sixt.
René Scharfe [Fri, 6 Aug 2021 17:53:47 +0000 (19:53 +0200)]
object-file: use unsigned arithmetic with bit mask
33f379eee6 (make object_directory.loose_objects_subdir_seen a bitmap,
2021-07-07) replaced a wasteful 256-byte array with a 32-byte array
and bit operations. The mask calculation shifts a literal 1 of type
int left by anything between 0 and 31. UndefinedBehaviorSanitizer
doesn't like that and reports:
object-file.c:2477:18: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Make sure to use an unsigned 1 instead to avoid the issue.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Josh Steadmon [Tue, 10 Aug 2021 17:20:39 +0000 (10:20 -0700)]
connect, protocol: log negotiated protocol version
It is useful for performance monitoring and debugging purposes to know
the wire protocol used for remote operations. This may differ from the
version set in local configuration due to differences in version and/or
configuration between the server and the client. Therefore, log the
negotiated wire protocol version via trace2, for both clients and
servers.
Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Tue, 10 Aug 2021 01:01:52 +0000 (21:01 -0400)]
apply: keep buffer/size pair in sync when parsing binary hunks
We parse through binary hunks by looping through the buffer with code
like:
llen = linelen(buffer, size);
...do something with the line...
buffer += llen;
size -= llen;
However, before we enter the loop, there is one call that increments
"buffer" but forgets to decrement "size". As a result, our "size" is off
by the length of that line, and subsequent calls to linelen() may look
past the end of the buffer for a newline.
The fix is easy: we just need to decrement size as we do elsewhere.
This bug goes all the way back to 0660626caf (binary diff: further
updates., 2006-05-05). Presumably nobody noticed because it only
triggers if the patch is corrupted, and even then we are often "saved"
by luck. We use a strbuf to store the incoming patch, so we overallocate
there, plus we add a 16-byte run of NULs as slop for memory comparisons.
So if this happened accidentally, the common case is that we'd just read
a few uninitialized bytes from the end of the strbuf before producing
the expected "this patch is corrupted" error complaint.
However, it is possible to carefully construct a case which reads off
the end of the buffer. The included test does so. It will pass both
before and after this patch when run normally, but using a tool like
ASan shows that we get an out-of-bounds read before this patch, but not
after.
Reported-by: Xingman Chen <xichixingman@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Mon, 9 Aug 2021 22:48:48 +0000 (18:48 -0400)]
range-diff: use ssize_t for parsed "len" in read_patches()
As we iterate through the buffer containing git-log output, parsing
lines, we use an "int" to store the size of an individual line. This
should be a size_t, as we have no guarantee that there is not a
malicious 2GB+ commit-message line in the output.
Overflowing this integer probably doesn't do anything _too_ terrible. We
are not using the value to size a buffer, so the worst case is probably
an out-of-bounds read from before the array. But it's easy enough to
fix.
Note that we have to use ssize_t here, since we also store the length
result from parse_git_diff_header(), which may return a negative value
for error. That function actually returns an int itself, which has a
similar overflow problem, but I'll leave that for another day. Much
of the apply.c code uses ints and should be converted as a whole; in the
meantime, a negative return from parse_git_diff_header() will be
interpreted as an error, and we'll bail (so we can't handle such a case,
but given that it's likely to be malicious anyway, the important thing
is we don't have any memory errors).
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Mon, 9 Aug 2021 22:48:39 +0000 (18:48 -0400)]
range-diff: handle unterminated lines in read_patches()
When parsing our buffer of output from git-log, we have a
find_end_of_line() helper that finds the next newline, and gives us the
number of bytes to move past it, or the size of the whole remaining
buffer if there is no newline.
But trying to handle both those cases leads to some oddities:
- we try to overwrite the newline with NUL in the caller, by writing
over line[len-1]. This is at best redundant, since the helper will
already have done so if it saw a newline. But if it didn't see a
newline, it's actively wrong; we'll overwrite the byte at the end of
the (unterminated) line.
We could solve this just dropping the extra NUL assignment in the
caller and just letting the helper do the right thing. But...
- if we see a "diff --git" line, we'll restore the newline on top of
the NUL byte, so we can pass the string to parse_git_diff_header().
But if there was no newline in the first place, we can't do this.
There's no place to put it (the current code writes a newline
over whatever byte we obliterated earlier). The best we can do is
feed the complete remainder of the buffer to the function (which is,
in fact, a string, by virtue of being a strbuf).
To solve this, the caller needs to know whether we actually found a
newline or not. We could modify find_end_of_line() to return that
information, but we can further observe that it has only one caller.
So let's just inline it in that caller.
Nobody seems to have noticed this case, probably because git-log would
never produce input that doesn't end with a newline. Arguably we could
just return an error as soon as we see that the output does not end in a
newline. But the code to do so actually ends up _longer_, mostly because
of the cleanup we have to do in handling the error.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Mon, 9 Aug 2021 22:47:42 +0000 (18:47 -0400)]
range-diff: drop useless "offset" variable from read_patches()
The "offset" variable was was introduced in 44b67cb62b (range-diff:
split lines manually, 2019-07-11), but it has never done anything
useful. We use it to count up the number of bytes we've consumed, but we
never look at the result. It was probably copied accidentally from an
almost-identical loop in apply.c:find_header() (and the point of that
commit was to make use of the parse_git_diff_header() function which
underlies both).
Because the variable was set but not used, most compilers didn't seem to
notice, but the upcoming clang-14 does complain about it, via its
-Wunused-but-set-variable warning.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jonathan Nieder [Fri, 6 Aug 2021 01:45:23 +0000 (18:45 -0700)]
Revert 'diff-merges: let "-m" imply "-p"'
This reverts commit f5bfcc823ba242a46e20fb6f71c9fbf7ebb222fe, which
made "git log -m" imply "--patch" by default. The logic was that
"-m", which makes diff generation for merges perform a diff against
each parent, has no use unless I am viewing the diff, so we could save
the user some typing by turning on display of the resulting diff
automatically. That wasn't expected to adversely affect scripts
because scripts would either be using a command like "git diff-tree"
that already emits diffs by default or would be combining -m with a
diff generation option such as --name-status. By saving typing for
interactive use without adversely affecting scripts in the wild, it
would be a pure improvement.
The problem is that although diff generation options are only relevant
for the displayed diff, a script author can imagine them affecting
path limiting. For example, I might run
git log -w --format=%H -- README
hoping to list commits that edited README, excluding whitespace-only
changes. In fact, a whitespace-only change is not TREESAME so the use
of -w here has no effect (since we don't apply these diff generation
flags to the diff_options struct rev_info::pruning used for this
purpose), but the documentation suggests that it should work
Suppose you specified foo as the <paths>. We shall call
commits that modify foo !TREESAME, and the rest TREESAME. (In
a diff filtered for foo, they look different and equal,
respectively.)
and a script author who has not tested whitespace-only changes
wouldn't notice.
Similarly, a script author could include
git log -m --first-parent --format=%H -- README
to filter the first-parent history for commits that modified README.
The -m is a no-op but it reflects the script author's intent. For
example, until 1e20a407fe2 (stash list: stop passing "-m" to "git
log", 2021-05-21), "git stash list" did this.
As a result, we can't safely change "-m" to imply "-p" without fear of
breaking such scripts. Restore the previous behavior.
Noticed because Rust's src/bootstrap/bootstrap.py made use of this
same construct: https://github.com/rust-lang/rust/pull/87513. That
script has been updated to omit the unnecessary "-m" option, but we
can expect other scripts in the wild to have similar expectations.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/merge: avoid -Wformat-extra-args from ancient Xcode
d540b70c85 (merge: cleanup messages like commit, 2019-04-17) adds
a way to change part of the helper text using a single call to
strbuf_add_commented_addf but with two formats with varying number
of parameters.
this trigger a warning in old versions of Xcode (ex 8.0), so use
instead two independent calls with a matching number of parameters
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
cf2dc1c238 (speed up alt_odb_usable() with many alternates, 2021-07-07)
introduces a KHASH_INIT invocation with a trailing ';', which while
commonly expected will trigger warnings with pedantic on both
clang[-Wextra-semi] and gcc[-Wpedantic], because that macro has already
a semicolon and is meant to be invoked without one.
while fixing the macro would be a worthy solution (specially considering
this is a common recurring problem), remove the extra ';' for now to
minimize churn.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since c49a177bec (test-lib.sh: set COLUMNS=80 for --verbose
repeatability, 2021-06-29) multiple tests have been failing when using
bash 5 because checkwinsize is enabled by default, therefore COLUMNS is
reset using TIOCGWINSZ even for non-interactive shells.
It's debatable whether or not bash should even be doing that, but for
now we can avoid this undesirable behavior by disabling this option.
Reported-by: Fabian Stelzer <fabian.stelzer@campoint.net> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
[jc: with SZEDER Gábor's suggestion to do this before setting COLUMNS] Signed-off-by: Junio C Hamano <gitster@pobox.com>
projects / thirdparty / git.git / log
