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The "hint:" messages given by the advice mechanism, when given a
message with a blank line, left a line with trailing whitespace,
which has been cleansed.
* jc/advice-sans-trailing-whitespace:
advice: omit trailing whitespace
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"git apply" failed to extract the filename the patch applied to,
when the change was about an empty file created in or deleted from
a directory whose name ends with a SP, which has been corrected.
* jc/apply-parse-diff-git-header-names-fix:
t4126: fix "funny directory name" test on Windows (again)
t4126: make sure a directory with SP at the end is usable
apply: parse names out of "diff --git" more carefully
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The tests for git-pack-refs(1) with the `core.sharedRepository` config
execute git-pack-refs(1) outside of the shell that has the expected
umask set. This is wrong because we want to test the behaviour of that
command with different umasks. The issue went unnoticed because most
distributions have a default umask of 0022, and we only ever test with
`--shared=true`, which re-adds the group write bit.
Fix the issue by moving git-pack-refs(1) into the umask'd shell and add
a bunch of test cases that exercise behaviour more thoroughly.
Note that we drop the check for whether `core.sharedRepository` was set
to the correct value to make the test setup a bit easier. We should be
able to rely on git-init(1) doing its thing correctly. Furthermore, to
help readability, we convert tests that pass `--shared=true` to instead
pass the equivalent `--shared=group`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have two kinds of `--shared=` tests, one for git-init(1) and one for
git-pack-refs(1). Merge them into a reusable function such that we can
easily add additional testcases with different umasks and flags for the
`--shared=` switch.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Similar to the preceding commit, let's reuse the `compressed` array that
we use to store compressed data in. This results in a small reduction in
memory allocations when writing many refs.
Before:
HEAP SUMMARY:
in use at exit: 671,931 bytes in 151 blocks
total heap usage: 22,620,528 allocs, 22,620,377 frees, 1,245,549,984 bytes allocated
After:
HEAP SUMMARY:
in use at exit: 671,931 bytes in 151 blocks
total heap usage: 22,618,257 allocs, 22,618,106 frees, 1,236,351,528 bytes allocated
So while the reduction in allocations isn't really all that big, it's a
low hanging fruit and thus there isn't much of a reason not to pick it.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While most reftable blocks are written to disk as-is, blocks for log
records are compressed with zlib. To compress them we use `compress2()`,
which is a simple wrapper around the more complex `zstream` interface
that would require multiple function invocations.
One downside of this interface is that `compress2()` will reallocate
internal state of the `zstream` interface on every single invocation.
Consequently, as we call `compress2()` for every single log block which
we are about to write, this can lead to quite some memory allocation
churn.
Refactor the code so that the block writer reuses a `zstream`. This
significantly reduces the number of bytes allocated when writing many
refs in a single transaction, as demonstrated by the following benchmark
that writes 100k refs in a single transaction.
Before:
HEAP SUMMARY:
in use at exit: 671,931 bytes in 151 blocks
total heap usage: 22,631,887 allocs, 22,631,736 frees, 1,854,670,793 bytes allocated
After:
HEAP SUMMARY:
in use at exit: 671,931 bytes in 151 blocks
total heap usage: 22,620,528 allocs, 22,620,377 frees, 1,245,549,984 bytes allocated
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The reftable writer tracks the last key that it has written so that it
can properly compute the compressed prefix for the next record it is
about to write. This last key must be reset whenever we move on to write
the next block, which is done in `writer_reinit_block_writer()`. We do
this by calling `strbuf_release()` though, which needlessly deallocates
the underlying buffer.
Convert the code to use `strbuf_reset()` instead, which saves one
allocation per block we're about to write. This requires us to also
amend `reftable_writer_free()` to release the buffer's memory now as we
previously seemingly relied on `writer_reinit_block_writer()` to release
the memory for us. Releasing memory here is the right thing to do
anyway.
While at it, convert a callsite where we truncate the buffer by setting
its length to zero to instead use `strbuf_reset()`, too.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two code paths which release memory of the reftable writer:
- `reftable_writer_close()` releases internal state after it has
written data.
- `reftable_writer_free()` releases the block that was written to and
the writer itself.
Both code paths free different parts of the writer, and consequently the
caller must make sure to call both. And while callers mostly do this
already, this falls apart when a write failure causes the caller to skip
calling `reftable_write_close()`.
Introduce a new function `reftable_writer_release()` that releases all
internal state and call it from both paths. Like this it is fine for the
caller to not call `reftable_writer_close()`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Large parts of the reftable library do not conform to Git's typical code
style. Refactor `writer_flush_nonempty_block()` such that it conforms
better to it and add some documentation that explains some of its more
intricate behaviour.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Large parts of the reftable library do not conform to Git's typical code
style. Refactor `writer_add_record()` such that it conforms better to it
and add some documentation that explains some of its more intricate
behaviour.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In order to write reflog entries we need to compute the committer's
identity as it gets encoded in the log record itself. The reftable
backend does this via `git_committer_info()` and `split_ident_line()` in
`fill_reftable_log_record()`, which use the Git config as well as
environment variables to figure out the identity.
While most callers would only call `fill_reftable_log_record()` once or
twice, `write_transaction_table()` will call it as many times as there
are queued ref updates. This can be quite a waste of effort when writing
many refs with reflog entries in a single transaction.
Refactor the code to pre-compute the committer information. This results
in a small speedup when writing 100000 refs in a single transaction:
Benchmark 1: update-ref: create many refs (HEAD~)
Time (mean ± σ): 2.895 s ± 0.020 s [User: 1.516 s, System: 1.374 s]
Range (min … max): 2.868 s … 2.983 s 100 runs
Benchmark 2: update-ref: create many refs (HEAD)
Time (mean ± σ): 2.845 s ± 0.017 s [User: 1.461 s, System: 1.379 s]
Range (min … max): 2.803 s … 2.913 s 100 runs
Summary
update-ref: create many refs (HEAD) ran
1.02 ± 0.01 times faster than update-ref: create many refs (HEAD~)
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the preceding commit we have disabled name checks in the "reftable"
backend. These checks were responsible for verifying multiple things
when writing records to the reftable stack:
- Detecting file/directory conflicts. Starting with the preceding
commits this is now handled by the reftable backend itself via
`refs_verify_refname_available()`.
- Validating refnames. This is handled by `check_refname_format()` in
the generic ref transacton layer.
The code in the reftable library is thus not used anymore and likely to
bitrot over time. Remove it.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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All the callback functions which write refs in the reftable backend
perform D/F conflict checks via `refs_verify_refname_available()`. But
in reality we perform these D/F conflict checks a second time in the
reftable library via `stack_check_addition()`.
Interestingly, the code in the reftable library is inferior compared to
the generic function:
- It is slower than `refs_verify_refname_available()`, even though
this can probably be optimized.
- It does not provide a proper error message to the caller, and thus
all the user would see is a generic "file/directory conflict"
message.
Disable the D/F conflict checks in the reftable library by setting the
`skip_name_check` write option. This results in a non-negligible speedup
when writing many refs. The following benchmark writes 100k refs in a
single transaction:
Benchmark 1: update-ref: create many refs (HEAD~)
Time (mean ± σ): 3.241 s ± 0.040 s [User: 1.854 s, System: 1.381 s]
Range (min … max): 3.185 s … 3.454 s 100 runs
Benchmark 2: update-ref: create many refs (HEAD)
Time (mean ± σ): 2.878 s ± 0.024 s [User: 1.506 s, System: 1.367 s]
Range (min … max): 2.838 s … 2.960 s 100 runs
Summary
update-ref: create many refs (HEAD~) ran
1.13 ± 0.02 times faster than update-ref: create many refs (HEAD)
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We already perform explicit D/F checks in all reftable callbacks which
write refs, except when writing symrefs. For one this leads to an error
message which isn't perfectly actionable because we only tell the user
that there was a D/F conflict, but not which refs conflicted with each
other. But second, once all ref updating callbacks explicitly check for
D/F conflicts, we can disable the D/F checks in the reftable library
itself and thus avoid some duplicated efforts.
Refactor the code that writes symref tables to explicitly call into
`refs_verify_refname_available()` when writing symrefs.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `write_copy_table()` function is shared between the reftable
implementations for renaming and copying refs. The only difference
between those two cases is that the rename will also delete the old
reference, whereas copying won't.
This has resulted in a bug though where we don't properly verify refname
availability. When calling `refs_verify_refname_available()`, we always
add the old ref name to the list of refs to be skipped when computing
availability, which indicates that the name would be available even if
it already exists at the current point in time. This is only the right
thing to do for renames though, not for copies.
The consequence of this bug is quite harmless because the reftable
backend has its own checks for D/F conflicts further down in the call
stack, and thus we refuse the update regardless of the bug. But all the
user gets in this case is an uninformative message that copying the ref
has failed, without any further details.
Fix the bug and only add the old name to the skip-list in case we rename
the ref. Consequently, this error case will now be handled by
`refs_verify_refname_available()`, which knows to provide a proper error
message.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our top-level Makefile follows our generic whitespace rule
established by the top-level .gitattributes file that does not
enforce indent-with-non-tab rule by default, but git-gui is set up
to enforce indent-with-non-tab by default. With the upcoming change
to GNU make, we no longer can reject (and worse, "fix") a patch that
adds whitespace indented lines to the Makefile, so loosen the rule
there for git-gui/Makefile, too.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In GNU Make commit 07fcee35 ([SV 64815] Recipe lines cannot contain
conditional statements, 2023-05-22) and following, conditional
statements may no longer be preceded by a tab character (which Make
refers to as the recipe prefix).
There are a handful of spots in our various Makefile(s) which will break
in a future release of Make containing 07fcee35. For instance, trying to
compile the pre-image of this patch with the tip of make.git results in
the following:
$ make -v | head -1 && make
GNU Make 4.4.90
config.mak.uname:842: *** missing 'endif'. Stop.
The kernel addressed this issue in 82175d1f9430 (kbuild: Replace tabs
with spaces when followed by conditionals, 2024-01-28). Address the
issues in Git's tree by applying the same strategy.
When a conditional word (ifeq, ifneq, ifdef, etc.) is preceded by one or
more tab characters, replace each tab character with 8 space characters
with the following:
find . -type f -not -path './.git/*' -name Makefile -or -name '*.mak' |
xargs perl -i -pe '
s/(\t+)(ifn?eq|ifn?def|else|endif)/" " x (length($1) * 8) . $2/ge unless /\\$/
'
The "unless /\\$/" removes any false-positives (like "\telse \"
appearing within a shell script as part of a recipe).
After doing so, Git compiles on newer versions of Make:
$ make -v | head -1 && make
GNU Make 4.4.90
GIT_VERSION = 2.44.0.414.gfac1dc44ca9
[...]
$ echo $?
0
Reported-by: Dario Gjorgjevski <dario.gjorgjevski@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The excludes_file variable is marked "const char *", but all the
assignments to it are made with a piece of memory allocated just
for it, and the variable is responsible for owning it.
When "core.excludesfile" is read, the code just lost the previous
value, leaking memory. Plug it.
The real problem is that the variable is mistyped; our convention
is to never make a variable that owns the piece of memory pointed
by it as "const". Fixing that would reduce the chance of this kind
of bug happening, and also would make it unnecessary to cast the
constness away while free()ing it, but that would be a much larger
follow-up effort.
Reported-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To reduce the number of on-disk reftables, compaction is performed.
Contiguous tables with the same binary log value of size are grouped
into segments. The segment that has both the lowest binary log value and
contains more than one table is set as the starting point when
identifying the compaction segment.
Since segments containing a single table are not initially considered
for compaction, if the table appended to the list does not match the
previous table log value, no compaction occurs for the new table. It is
therefore possible for unbounded growth of the table list. This can be
demonstrated by repeating the following sequence:
git branch -f foo
git branch -d foo
Each operation results in a new table being written with no compaction
occurring until a separate operation produces a table matching the
previous table log value.
Instead, to avoid unbounded growth of the table list, the compaction
strategy is updated to ensure tables follow a geometric sequence after
each operation by individually evaluating each table in reverse index
order. This strategy results in a much simpler and more robust algorithm
compared to the previous one while also maintaining a minimal ordered
set of tables on-disk.
When creating 10 thousand references, the new strategy has no
performance impact:
Benchmark 1: update-ref: create refs sequentially (revision = HEAD~)
Time (mean ± σ): 26.516 s ± 0.047 s [User: 17.864 s, System: 8.491 s]
Range (min … max): 26.447 s … 26.569 s 10 runs
Benchmark 2: update-ref: create refs sequentially (revision = HEAD)
Time (mean ± σ): 26.417 s ± 0.028 s [User: 17.738 s, System: 8.500 s]
Range (min … max): 26.366 s … 26.444 s 10 runs
Summary
update-ref: create refs sequentially (revision = HEAD) ran
1.00 ± 0.00 times faster than update-ref: create refs sequentially (revision = HEAD~)
Some tests in `t0610-reftable-basics.sh` assert the on-disk state of
tables and are therefore updated to specify the correct new table count.
Since compaction is more aggressive in ensuring tables maintain a
geometric sequence, the expected table count is reduced in these tests.
In `reftable/stack_test.c` tests related to `sizes_to_segments()` are
removed because the function is no longer needed. Also, the
`test_suggest_compaction_segment()` test is updated to better showcase
and reflect the new geometric compaction behavior.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In future tests it will be neccesary to create repositories with a set
number of tables. To make this easier, introduce the
`GIT_TEST_REFTABLE_AUTOCOMPACTION` environment variable that, when set
to false, disables autocompaction of reftables.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The reftable stack already has a variable to configure whether or not to
run auto-compaction, but it is inaccessible to users of the library.
There exist use cases where a caller may want to have more control over
auto-compaction.
Move the `disable_auto_compact` option into `reftable_write_options` to
allow external callers to disable auto-compaction. This will be used in
a subsequent commit.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The series was based on maint and fixes all the tests that exist
there, but we have acquired a few more.
I suspect that the values assigned in many of these places are $IFS
safe, and this is primarily to squelch the linter than adding a
necessary workaround for buggy dash.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The series was based on maint and fixes all the tests that exist
there, but we have acquired a few more.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach t/check-non-portable-shell.pl that right hand side of the
assignment done with "local VAR=VAL" need to be quoted. We
deliberately target only VAL that begins with $ so that we can catch
- $variable_reference and positional parameter reference like $4
- $(command substitution)
- ${variable_reference-with_magic}
while excluding
- $'\n' that is a bash-ism freely usable in t990[23]
- $(( arithmetic )) whose result should be $IFS safe.
- $? that also is $IFS safe
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Future-proof test scripts that do
local VAR=VAL
without quoting VAL (which is OK in POSIX but broken in some shells)
that is ${magic-"reference to a parameter"}.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Future-proof test scripts that do
local VAR=VAL
without quoting VAL (which is OK in POSIX but broken in some shells)
that is a $(command substitution).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Future-proof test scripts that do
local VAR=VAL
without quoting VAL (which is OK in POSIX but broken in some shells)
that is a positional parameter, e.g. $4.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Dash bug https://bugs.launchpad.net/ubuntu/+source/dash/+bug/139097
lets the shell erroneously perform field splitting on the expansion
of a command substitution during declaration of a local or an extern
variable.
The explanation was stolen from ebee5580 (parallel-checkout: avoid
dash local bug in tests, 2021-06-06).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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https://lore.kernel.org/git/201307081121.22769.tboegi@web.de/
resulted in 9968ffff (test-lint: detect 'export FOO=bar',
2013-07-08) to add a rule to t/check-non-portable-shell.pl script to
reject
export VAR=VAL
and suggest us to instead write it as two statements, i.e.,
VAR=VAL
export VAR
This however was not spelled out in the CodingGuidelines document.
We may want to re-evaluate the rule since it is from ages ago, but
for now, let's make the written rule and what the automation
enforces consistent.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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- Support multi-line methods by not requiring closing parenthesis.
- Support multiple generics (comma was missing before).
- Add missing `foreach`, `lock` and `fixed` keywords to skip over.
- Remove `instanceof` keyword, which isn't C#.
- Also detect non-method keywords not positioned at the start of a line.
- Added tests; none existed before.
The overall strategy is to focus more on what isn't expected for
method/property definitions, instead of what is, but is fully optional.
Signed-off-by: Steven Jeuris <steven.jeuris@gmail.com>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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date_mode_from_type() modifies a static variable and returns a pointer
to it. This is not thread-safe. Most callers of date_mode_from_type()
use it via the macro DATE_MODE and pass its result on to functions like
show_date(), which take a const pointer and don't modify the struct.
Avoid the static storage by putting the variable on the stack and
returning the whole struct date_mode. Change functions that take a
constant pointer to expect the whole struct instead.
Reduce the cost of passing struct date_mode around on 64-bit systems
by reordering its members to close the hole between the 32-bit wide
.type and the 64-bit aligned .strftime_fmt as well as the alignment
hole at the end. sizeof reports 24 before and 16 with this change
on x64. Keep .type at the top to still allow initialization without
designator -- though that's only done in a single location, in
builtin/blame.c.
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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vreportf(), which is used e.g. by die() and warning() by default, calls
vsnprintf(3) to format the message to report. If that call fails, it
only prints the prefix, e.g. "fatal: " or "warning: ". This at least
informs users that they were supposed to get a message and reveals its
severity, but leaves them wondering what it may have been about.
Here's an example where vreportf() tries to print a message with a 2GB
string, which is too much for vsnprintf(3):
$ perl -le 'print "create refs/heads/", "a"x2**31' | git update-ref --stdin
fatal:
At least report the formatting error along with the offending message
(unformatted) to indicate why that message is empty. Use fprintf(3)
instead of error() to get the message out directly and avoid recursing
back into vreportf().
With this patch we get:
$ perl -le 'print "create refs/heads/", "a"x2**31' | git update-ref --stdin
error: unable to format message: invalid ref format: %s
fatal:
... which allows users to at least get an idea of what went wrong.
Suggested-by: Jeff King <peff@peff.net>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As of curl 7.66.0, we don't need to manually specify a "chunked"
Transfer-Encoding header. Instead, modern curl deduces the need for it
in a POST that has a POSTFIELDSIZE of -1 and uses READFUNCTION rather
than POSTFIELDS.
That version is recent enough that we can't just drop the header; we
need to do so conditionally. Since it's only a single line, it seems
like the simplest thing would just be to keep setting it unconditionally
(after all, the #ifdefs are much longer than the actual code). But
there's another wrinkle: HTTP/2.
Curl may choose to use HTTP/2 under the hood if the server supports it.
And in that protocol, we do not use the chunked encoding for streaming
at all. Most versions of curl handle this just fine by recognizing and
removing the header. But there's a regression in curl 8.7.0 and 8.7.1
where it doesn't, and large requests over HTTP/2 are broken (which t5559
notices). That regression has since been fixed upstream, but not yet
released.
Make the setting of this header conditional, which will let Git work
even with those buggy curl versions. And as a bonus, it serves as a
reminder that we can eventually clean up the code as we bump the
supported curl versions.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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core.commentChar used to be limited to a single byte, but has been
updated to allow an arbitrary multi-byte sequence.
* jk/core-comment-string:
config: add core.commentString
config: allow multi-byte core.commentChar
environment: drop comment_line_char compatibility macro
wt-status: drop custom comment-char stringification
sequencer: handle multi-byte comment characters when writing todo list
find multi-byte comment chars in unterminated buffers
find multi-byte comment chars in NUL-terminated strings
prefer comment_line_str to comment_line_char for printing
strbuf: accept a comment string for strbuf_add_commented_lines()
strbuf: accept a comment string for strbuf_commented_addf()
strbuf: accept a comment string for strbuf_stripspace()
environment: store comment_line_char as a string
strbuf: avoid shadowing global comment_line_char name
commit: refactor base-case of adjust_comment_line_char()
strbuf: avoid static variables in strbuf_add_commented_lines()
strbuf: simplify comment-handling in add_lines() helper
config: forbid newline as core.commentChar
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"git config" learned "--comment=<message>" option to leave a
comment immediately after the "variable = value" on the same line
in the configuration file.
* rs/config-comment:
config: allow tweaking whitespace between value and comment
config: fix --comment formatting
config: add --comment option to add a comment
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* ps/pack-refs-auto:
builtin/gc: pack refs when using `git maintenance run --auto`
builtin/gc: forward git-gc(1)'s `--auto` flag when packing refs
t6500: extract objects with "17" prefix
builtin/gc: move `struct maintenance_run_opts`
builtin/pack-refs: introduce new "--auto" flag
builtin/pack-refs: release allocated memory
refs/reftable: expose auto compaction via new flag
refs: remove `PACK_REFS_ALL` flag
refs: move `struct pack_refs_opts` to where it's used
t/helper: drop pack-refs wrapper
refs/reftable: print errors on compaction failure
reftable/stack: gracefully handle failed auto-compaction due to locks
reftable/stack: use error codes when locking fails during compaction
reftable/error: discern locked/outdated errors
reftable/stack: fix error handling in `reftable_stack_init_addition()`
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Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When parsing config keys, the normal pattern is to return 0 after
completing the logic for a specific config key, since no other key will
match. One instance, for "submodule.recurse", was missing this case in
builtin/fetch.c.
This is a very minor change, and will have minimal impact to
performance. This particular block was edited recently in 56e8bb4fb4
(fetch: use `fetch_config` to store "fetch.recurseSubmodules" value,
2023-05-17), which led to some hesitation that perhaps this omission was
on purpose.
However, no later cases within git_fetch_config() will match the key if
equal to "submodule.recurse" and neither will any key matches within the
catch-all git_default_config().
Signed-off-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the function mksnpath(), which has become unused.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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PATH_MAX is not always a hard limit and 'path' in create_one_file()
could be longer -- it's taken from the patch file and allocated
dynamically. Allocate the name of the temporary file on the heap as
well instead of using a fixed-size buffer to avoid that arbitrary limit.
Resist the temptation of using the more convenient mkpath() to avoid
introducing a dependency on a static variable deep inside the apply
machinery.
Take care to work around (arguably buggy) implementations of free(3)
that modify errno, by calling it only after using the errno value.
Suggested-by: Jeff King <peff@peff.net>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When passing untracked path with -u option, it silently succeeds.
There is no error message and the exit code is zero. This is
inconsistent with other instances of git commands where the expected
argument is a known path. In those other instances, we error out when
the path is not known.
Fix this by passing a character array to add_files_to_cache() to
collect the pathspec matching information and report the error if a
pathspec does not match any cache entry. Also add a testcase to cover
this scenario.
Signed-off-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we provide a pathspec which does not match any tracked path
alongside --include, we do not error like without --include. If there
is something staged, it will commit the staged changes and ignore the
pathspec which does not match any tracked path. And if nothing is
staged, it will print the status. Exit code is 0 in both cases (unlike
without --include). This is also described in the TODO comment before
the relevant testcase.
Fix this by passing a character array to add_files_to_cache() to
collect the pathspec matching information and error out if the given
path is untracked. Also, amend the testcase to check for the error
message and remove the TODO comment.
Signed-off-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Unlike "git add" and other end-user facing commands, where it is
diagnosed as an error to give a pathspec with an element that does
not match any path, the diff machinery does not care if some
elements of the pathspec do not match. Given that the diff
machinery is heavily used in pathspec-limited "git log" machinery,
and it is common for a path to come and go while traversing the
project history, this is usually a good thing.
However, in some cases we would want to know if all the pathspec
elements matched. For example, "git add -u <pathspec>" internally
uses the machinery used by "git diff-files" to decide contents from
what paths to add to the index, and as an end-user facing command,
"git add -u" would want to report an unmatched pathspec element.
Add a new .ps_matched member next to the .prune_data member in
"struct rev_info" so that we can optionally keep track of the use of
.prune_data pathspec elements that can be inspected by the caller.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Windows 10 build 17063 introduced support for unix sockets to Windows.
bb390b1 (git-compat-util: include declaration for unix sockets in
windows, 2021-09-14) introduced a way to build git with unix socket
support on Windows, but you still had to decide at build time which
Windows version the compiled executable was supposed to run on.
We can detect at runtime wether the operating system supports unix
sockets and act accordingly for all supported Windows versions.
This fixes https://github.com/git-for-windows/git/issues/3892
Signed-off-by: Matthias Aßhauer <mha1993@live.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow git-cherry-pick(1) to automatically drop redundant commits via
a new `--empty` option, similar to the `--empty` options for
git-rebase(1) and git-am(1). Includes a soft deprecation of
`--keep-redundant-commits` as well as some related docs changes and
sequencer code cleanup.
* bl/cherry-pick-empty:
cherry-pick: add `--empty` for more robust redundant commit handling
cherry-pick: enforce `--keep-redundant-commits` incompatibility
sequencer: do not require `allow_empty` for redundant commit options
sequencer: handle unborn branch with `--allow-empty`
rebase: update `--empty=ask` to `--empty=stop`
docs: clean up `--empty` formatting in git-rebase(1) and git-am(1)
docs: address inaccurate `--empty` default with `--exec`
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The "--pretty=<shortHand>" option of the commands in the "git log"
family, defined as "[pretty] shortHand = <expansion>" should have
been looked up case insensitively, but was not, which has been
corrected.
* bl/pretty-shorthand-config-fix:
pretty: find pretty formats case-insensitively
pretty: update tests to use `test_config`
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Code clean-up.
* rs/strbuf-expand-bad-format:
cat-file: use strbuf_expand_bad_format()
factor out strbuf_expand_bad_format()
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Code clean-up.
* rs/midx-use-strvec-pushf:
midx: use strvec_pushf() for pack-objects base name
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