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In cd475b3b038 (refs: add ability for backends to special-case reading
of symbolic refs, 2022-03-01) when the "read_symbolic_ref" callback
was added we'd fall back on "refs_read_raw_ref" if there wasn't any
backend implementation of "read_symbolic_ref".
As discussed in the preceding commit this would only happen if we were
running the "debug" backend, e.g. in the "setup for ref completion"
test in t9902-completion.sh with:
GIT_TRACE_REFS=1 git fetch --no-tags other
Let's improve the trace output, but and also eliminate the
now-redundant refs_read_raw_ref() fallback case. As noted in the
preceding commit the "packed" backend will never call
refs_read_symbolic_ref() (nor is it ever going to). For any future
backend such as reftable it's OK to ask that they either implement
this (or a wrapper) themselves.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the stub BUG(...) functions previously used by the "struct
ref_storage_be refs_be_packed" backend.
We never call any functions in the packed backend by using it as a
"normal" primary ref store, instead we'll always initialize a "files"
backend ref-store.
It will then via the "packed_ref_store" member of "struct
files_ref_store" call selected functions in the "packed" backend, and
we'll in addition call others via wrappers in refs.c.
So while these would arguably give us *slightly* more meaningful error
messages we'll NULL the missing members in the initializer anyway, so
we'll reliably get a segfault if we're ever changing the backend and
having it call something it doesn't have.
So there's no need for this verbose boilerplate, and as shown in a
subsequent commit it might even lead to some confusion about the
packed backend being a "real" backend. Let's make it clear that it's
not.
As an aside, this also fixes a warning emitted by SunCC in at least
versions 12.5 and 12.6 of Oracle Developer Studio:
"refs/packed-backend.c", line 1599: warning: Function has no return statement : packed_create_symref
"refs/packed-backend.c", line 1606: warning: Function has no return statement : packed_rename_ref)
"refs/packed-backend.c", line 1613: warning: Function has no return statement : packed_copy_ref
"refs/packed-backend.c", line 1648: warning: Function has no return statement : packed_create_reflog
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change a few miscellaneous non-designated initializer assignments to
use designated initializers.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the definition of the three refs backends we currently carry to
use designated initializers.
The "= NULL" assignments being retained here are redundant, and could
be removed, but let's keep them for clarity. All of these backends
define almost all fields, so we're not saving much in terms of line
count by omitting these, but e.g. for "refs_be_debug" it's immediately
apparent that we're omitting "init" when comparing its assignment to
the others.
This is a follow-up to similar work merged in bd4232fac33 (Merge
branch 'ab/struct-init', 2021-07-16), a4b9fb6a5cf (Merge branch
'ab/designated-initializers-more', 2021-10-18) and a30321b9eae (Merge
branch 'ab/designated-initializers' into
ab/designated-initializers-more, 2021-09-27).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This reverts commit f2a454e0a5 (unpack-trees: improve performance of
next_cache_entry, 2021-11-29).
The "hint" value was originally needed to improve performance in 'git reset
-- <pathspec>' caused by 'cache_bottom' lagging behind its correct value
when using a sparse index. The 'cache_bottom' tracking has since been
corrected, removing the need for an additional "pseudo-cache_bottom"
tracking variable.
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Correct tracking of the 'cache_bottom' for cases where sparse directories
are present in the index.
BACKGROUND
----------
The 'unpack_trees_options.cache_bottom' is a variable that tracks the
in-progress "bottom" of the cache as 'unpack_trees()' iterates through the
contents of the index. Most importantly, this value informs the sequential
return values of 'next_cache_entry()' which, in the "diff cache" usage of
'unpack_callback()', are either unpacked as-is or are passed into the diff
machinery.
The 'cache_bottom' is intended to track the position of the first entry in
the index that has not yet been diffed or unpacked. It is advanced in two
main ways: either it is incremented when an index entry is marked as "used"
(in 'mark_ce_used()'), indicating that it was unpacked or diffed, or when a
directory is unpacked, in which case it is increased by an amount equaling
the number of index entries inside that tree.
In 17a1bb570b (unpack-trees: preserve cache_bottom, 2021-07-14), it was
identified that sparse directories posed a problem to the above
'cache_bottom' advancement logic - because a sparse directory was both an
index entry that could be "used" and a directory that can be unpacked, the
'cache_bottom' would be incremented too many times. To solve this problem,
the 'mark_ce_used()' advancement of 'cache_bottom' was skipped for sparse
directories.
INCORRECT CACHE_BOTTOM TRACKING
-------------------------------
Skipping the 'cache_bottom' advancement for sparse directories in
'mark_ce_used()' breaks down in two cases:
1. When the 'unpack_trees()' operation is *not* a "cache diff" (because the
directory contents-based incrementing of 'cache_bottom' does not happen).
2. When a cache diff is performed with a pathspec (because
'unpack_index_entry()' will unpack a sparse directory not matched by the
pathspec without performing the directory contents-based increment).
The former luckily does not appear to affect 'git' behavior, likely because
'cache_bottom' is largely unused (non-"cache diff" 'unpack_trees()' uses
'find_index_entry()' - rather than 'next_cache_entry()' - to find the index
entries to unpack).
The latter, however, causes 'cache_bottom' to "lag behind" its intended
position by an amount equal to the number of sparse directories unpacked so
far with 'unpack_index_entry()'. If a repository is structured such that any
sparse directories are ordered lexicographically *after* any
pathspec-matching directories, though, this issue won't present any adverse
behavior.
This was the case with the 't1092-sparse-checkout-compatibility.sh' tests
before the addition of the 'before/' sparse directory (ordered *before* the
in-cone 'deep/' directory), therefore sidestepping the issue. Once the
'before/' directory was added, though, 'cache_bottom' began to lag behind
its intended position, causing 'next_cache_entry()' to return index entries
it had already processed and, ultimately, an incorrect diff.
CORRECTING CACHE_BOTTOM
-----------------------
The problems observed in 't1092' come from 'cache_bottom' lagging behind in
cases where the cache tree-based advancement doesn't occur. To solve this,
then, the fix in 17a1bb570b is "reversed"; rather than skipping
'cache_bottom' advancement in 'mark_ce_used()', we skip the directory
contents-based advancement for sparse directories. Now, every index entry
can be accounted for in 'cache_bottom':
* if you're working with a single index entry, 'cache_bottom' is incremented
in 'mark_ce_used()'
* if you're working with a directory that contains index entries (but is not
one itself), 'cache_bottom' is incremented by the number of entries in
that directory.
Finally, change the 'test_expect_failure' tests in 't1092' failing due to
this bug back to 'test_expect_success'.
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a sparse directory 'before/' containing files 'a' and 'b' to the test
repo used in 't/t1092-sparse-checkout-compatibility.sh'. This is meant to
ensure that no sparse index integrations rely on the in-cone path(s) being
lexicographically first in the repo.
Unfortunately, some existing tests do not handle this repo architecture
properly:
* 'add outside sparse cone'
* 'status/add: outside sparse cone'
* 'reset with pathspecs inside sparse definition'
All three of these are due to the incorrect handling of the
'unpack_trees_options.cache_bottom' when performing a cache diff via
'unpack_trees'. This will be corrected in a future patch; in the meantime,
mark the tests with 'test_expect_failure'.
Finally, update the 'ls-files' and 'root directory cannot be sparse' tests
to include the 'before/' directory in their expected index contents.
Co-authored-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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My a18d66cefb9 (diff.c: free "buf" in diff_words_flush(), 2022-03-04)
has what it retrospect is a rather obvious bug (I don't know what I
was thinking, if it all): We use the "emitted_symbols" allocation in
append_emitted_diff_symbol() N times, but starting with a18d66cefb9
we'd free it after its first use!
The correct way to free this data would have been to add the free() to
the existing free_diff_words_data() function, so let's do that. The
"ecbdata->diff_words->opt->emitted_symbols" might be NULL, so let's
add a trivial free_emitted_diff_symbols() helper next to the function
that appends to it.
This fixes the "no effect on show from" leak tested for in the
preceding commit. Perhaps confusingly this change will skip that test
under SANITIZE=leak, but otherwise opt-in the
"t4015-diff-whitespace.sh" test.
The reason is that a18d66cefb9 "fixed" the leak in the preceding "no
effect on diff" test, but for the first call to diff_words_flush() the
"wol->buf" would be NULL, so we wouldn't double-free (and
SANITIZE=address would see nothing amiss). With this change we'll
still pass that test, showing that we've also fixed leaks on this
codepath.
We then have to skip the new "no effect on show" test because it
happens to trip over an unrelated memory leak (in revision.c). The
same goes for "move detection with submodules". Both of them pass with
SANITIZE=address though, which would error on the "no effect on show"
test before this change.
Reported-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a failing test which demonstrates a regression in
a18d66cefb ("diff.c: free "buf" in diff_words_flush()", 2022-03-04),
the regression is discussed in detail in the subsequent commit. With
it running `git show --word-diff --color-moved` with SANITIZE=address
would emit:
==31191==ERROR: AddressSanitizer: attempting double-free on 0x617000021100 in thread T0:
#0 0x49f0a2 in free (git+0x49f0a2)
#1 0x9b0e4d in diff_words_flush diff.c:2153:3
#2 0x9aed5d in fn_out_consume diff.c:2354:3
#3 0xe092ab in consume_one xdiff-interface.c:43:9
#4 0xe072eb in xdiff_outf xdiff-interface.c:76:10
#5 0xec7014 in xdl_emit_diffrec xdiff/xutils.c:53:6
[...]
0x617000021100 is located 0 bytes inside of 768-byte region [0x617000021100,0x617000021400)
freed by thread T0 here:
#0 0x49f0a2 in free (git+0x49f0a2)
[...(same stacktrace)...]
previously allocated by thread T0 here:
#0 0x49f603 in __interceptor_realloc (git+0x49f603)
#1 0xde4da4 in xrealloc wrapper.c:126:8
#2 0x995dc5 in append_emitted_diff_symbol diff.c:794:2
#3 0x96c44a in emit_diff_symbol diff.c:1527:3
[...]
This was not caught by the test suite because we test `diff
--word-diff --color-moved` only so far.
Therefore, add a test for `show`, too.
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Make use of "test_hook" in various cases that didn't fit neatly into
preceding commits. Here we need to indent blocks in addition to
changing the test code, or to make other small cosmetic changes.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change tests that used a "mkdir -p .git/hooks && write_script" pattern
to use the new "test_hook" helper instead. The new helper does not
create the .git/hooks directory, rather we assume that the default
template will do so for us.
An upcoming series[1] will extend "test_hook" to operate in a
"--template=" mode, but for now assuming that we have a .git/hooks
already is a safe assumption. If that assumption becomes false in the
future we'll only need to change 'test_hook", instead of all of these
callsites.
1. https://lore.kernel.org/git/cover-00.13-00000000000-20211212T201308Z-avarab@gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor various test code to use the "test_hook" helper. This change:
- Fixes the long-standing issues with those tests using "#!/bin/sh"
instead of "#!$SHELL_PATH". Using "#!/bin/sh" here happened to work
because this code was so simple that it e.g. worked on Solaris
/bin/sh.
- Removes the "mkdir .git/hooks" invocation, as explained in a
preceding commit we'll rely on the default templates to create that
directory for us.
For the test in "t5402-post-merge-hook.sh" it's easier and more
correct to unroll the for-loop into a test_expect_success, so let's do
that.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor the repository setup code for tests that test hooks the use
of sub-shells when setting up the test repository and hooks, and use
the "test_hook" wrapper instead of "write_scripts".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the "t5516-fetch-push.sh" test code to make use of the new
"test_hook" helper, and to use "test_when_finished" to have tests
clean up their own state, instead of relying on subsequent tests to
clean the trash directory.
Before this each test would have been responsible for cleaning up
after a preceding test (which may or may not have run, e.g. if --run
or "GIT_SKIP_TESTS" was used), now each test will instead clean up
after itself.
In order to use both "test_hook" and "test_when_finished" we need to
move them out of sub-shells, which requires some refactoring.
While we're at it split up the "push with negotiation" test, now the
middle of the test doesn't need to "rm event", and since it delimited
two halves that were testing two different things the end-state is
easier to read and reason about.
While changing these lines make the minor change from "-fr" to "-rf"
as the "rm" argument, some of them used it already, it's more common
in the test suite, and it leaves the end-state of the file with more
consistency.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Amend a test added in 788a776069b (bugreport: collect list of
populated hooks, 2020-05-07) to "test_cmp" for the expected output,
instead of selectively using "grep" to check for specific things we
either expect or don't expect in the output.
As noted in a preceding commit our .git/hooks directory already
contains *.sample hooks, so we have no need to clobber the
prepare-commit-msg.sample hook in particular.
Instead we should assert that those *.sample hooks are not included in
the output, and for good measure let's add a new "unknown-hook", to
check that we only look through our own known hooks. See
cfe853e66be (hook-list.h: add a generated list of hooks, like
config-list.h, 2021-09-26) for how we generate that data.
We're intentionally not piping the "actual" output through "sort" or
similar, we'd also like to check that our reported hooks are sorted.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Stop moving the .git/hooks directory out of the way, or creating it
during test setup. Instead assume that it will contain
harmless *.sample files.
That we can assume that is discussed in point #4 of
f0d4d398e28 (test-lib: split up and deprecate test_create_repo(),
2021-05-10), those parts of this could and should have been done in
that change.
Removing the "mkdir -p" here will then validate that our templates are
being used, since we'd subsequently fail to create a hook in that
directory if it didn't exist. Subsequent commits will have those hooks
created by a "test_hook" wrapper, which will then being doing that
same validation.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change code added in a87679339c0 (test: rename http fetch and push
test files, 2014-02-06) to stop relying on the "exec git
update-server-info" in "templates/hooks--post-update.sample", let's
instead inline the expected hook in the test itself.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Amend a test added in 96e7225b310 (hook: add 'run' subcommand,
2021-12-22) to use a for-loop instead of a copy/pasting the same test
for the four exit codes we test.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a "test_hook" wrapper similar to the existing "test_config"
wrapper added in d960c47a881 (test-lib: add helper functions for
config, 2011-08-17).
This wrapper:
- Will clean up the hook with "test_when_finished", unless --setup is
provided.
- Will error if we clobber a hook, unless --clobber is provided.
- Takes a name like "update" instead of ".git/hooks/update".
- Accepts -C <dir>, like "test_config" and "test_commit".
By using a wrapper we'll be able to easily change all the hook-related
code that assumes that the template-created ".git/hooks" directory is
created by "init", "clone" etc. once another topic follows-up and
changes the test suite to stop creating trash directories using those
templates.
In addition this will make it easy to have the hooks configured using
the "configuration-based hooks" topic, once we get around to
integrating that. I.e. we'll be able to run the tests in a mode where
we sometimes create a .git/hooks/<name>, and other times create a
script in another location, and point the relevant configuration
snippet to it.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Build fix on Windows.
* cb/mingw-gmtime-r:
mingw: avoid fallback for {local,gm}time_r()
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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mingw-w64's pthread_unistd.h had a bug that mistakenly (because there is
no support for the *lockfile() functions required[1]) defined
_POSIX_THREAD_SAFE_FUNCTIONS and that was being worked around since
3ecd153a3b (compat/mingw: support MSys2-based MinGW build, 2016-01-14).
The bug was fixed in winphtreads, but as a side effect, leaves the
reentrant functions from time.h no longer visible and therefore breaks
the build.
Since the intention all along was to avoid using the fallback functions,
formalize the use of POSIX by setting the corresponding feature flag and
compile out the implementation for the fallback functions.
[1] https://unix.org/whitepapers/reentrant.html
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This was missed in af6d1d602a8f (Git 2.33.1, 2021-10-12).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Count string_list items in size_t, not "unsigned int".
* ab/string-list-count-in-size-t:
string-list API: change "nr" and "alloc" to "size_t"
gettext API users: don't explicitly cast ngettext()'s "n"
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Code clean-up to allow callers of run_commit_hook() to learn if it
got "success" because the hook succeeded or because there wasn't
any hook.
* ab/racy-hooks:
hooks: fix an obscure TOCTOU "did we just run a hook?" race
merge: don't run post-hook logic on --no-verify
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Updates tests around the use of "test $(git cmd) = constant".
* ab/keep-git-exit-codes-in-tests:
rev-list simplify tests: don't ignore "git" exit code
checkout tests: don't ignore "git <cmd>" exit code
apply tests: don't ignore "git ls-files" exit code, drop sub-shell
gettext tests: don't ignore "test-tool regex" exit code
rev-list tests: don't hide abort() in "test_expect_failure"
diff tests: don't ignore "git rev-list" exit code
notes tests: don't ignore "git" exit code
rev-parse tests: don't ignore "git reflog" exit code
merge tests: use "test_must_fail" instead of ad-hoc pattern
apply tests: use "test_must_fail" instead of ad-hoc pattern
diff tests: don't ignore "git diff" exit code in "read" loop
diff tests: don't ignore "git diff" exit code
read-tree tests: check "diff-files" exit code on failure
tests: use "test_stdout_line_count", not "test $(git [...] | wc -l)"
tests: change some 'test $(git) = "x"' to test_cmp
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Teach "test-chmtime" to work on a directory and use it to avoid
having to wait for a second in a few places in tests.
* tk/t7063-chmtime-dirs-too:
t7063: mtime-mangling instead of delays in untracked cache testing
t/helper/test-chmtime: update mingw to support chmtime on directories
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Fixes to the way generation number v2 in the commit-graph files are
(not) handled.
* ds/commit-graph-gen-v2-fixes:
commit-graph: declare bankruptcy on GDAT chunks
commit-graph: fix generation number v2 overflow values
commit-graph: start parsing generation v2 (again)
commit-graph: fix ordering bug in generation numbers
t5318: extract helpers to lib-commit-graph.sh
test-read-graph: include extra post-parse info
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"git stash drop" is reimplemented as an internal call to
reflog_delete() function, instead of invoking "git reflog delete"
via run_command() API.
* jc/stash-drop:
stash: call reflog_delete() in reflog.c
reflog: libify delete reflog function and helpers
stash: add tests to ensure reflog --rewrite --updatref behavior
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"git remote rename A B", depending on the number of remote-tracking
refs involved, takes long time renaming them. The command has been
taught to show progress bar while making the user wait.
* tb/rename-remote-progress:
builtin/remote.c: show progress when renaming remote references
builtin/remote.c: parse options in 'rename'
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"git read-tree" has been made to be aware of the sparse-index
feature.
* vd/sparse-read-tree:
read-tree: make three-way merge sparse-aware
read-tree: make two-way merge sparse-aware
read-tree: narrow scope of index expansion for '--prefix'
read-tree: integrate with sparse index
read-tree: expand sparse checkout test coverage
read-tree: explicitly disallow prefixes with a leading '/'
status: fix nested sparse directory diff in sparse index
sparse-index: prevent repo root from becoming sparse
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Object-file API shuffling.
* ab/object-file-api-updates:
object-file API: pass an enum to read_object_with_reference()
object-file.c: add a literal version of write_object_file_prepare()
object-file API: have hash_object_file() take "enum object_type"
object API: rename hash_object_file_literally() to write_*()
object-file API: split up and simplify check_object_signature()
object API users + docs: check <0, not !0 with check_object_signature()
object API docs: move check_object_signature() docs to cache.h
object API: correct "buf" v.s. "map" mismatch in *.c and *.h
object-file API: have write_object_file() take "enum object_type"
object-file API: add a format_object_header() function
object-file API: return "void", not "int" from hash_object_file()
object-file.c: split up declaration of unrelated variables
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"git config -h" did not describe the "--type" option correctly.
* mf/fix-type-in-config-h:
config: correct "--type" option in "git config -h" output
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Various optimization for "git fetch".
* ps/fetch-mirror-optim:
refs/files-backend: optimize reading of symbolic refs
remote: read symbolic refs via `refs_read_symbolic_ref()`
refs: add ability for backends to special-case reading of symbolic refs
fetch: avoid lookup of commits when not appending to FETCH_HEAD
upload-pack: look up "want" lines via commit-graph
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The untracked cache newly computed weren't written back to the
on-disk index file when there is no other change to the index,
which has been corrected.
* tk/empty-untracked-cache:
untracked-cache: write index when populating empty untracked cache
t7519: populate untracked cache before test
t7519: avoid file to index mtime race for untracked cache
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Test fix-up for a topic already in master.
* ab/grep-patterntype:
log tests: fix "abort tests early" regression in ff37a60c369
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When check_has_commit() is called on a missing submodule, initialization
of the struct repository fails, but it attempts to clear the struct
anyway (which is a fatal error). This bug is masked by its only caller,
submodule_has_commits(), first calling add_submodule_odb(). The latter
fails if the submodule does not exist, making submodule_has_commits()
exit early and not invoke check_has_commit().
Fix this bug, and because calling add_submodule_odb() is no longer
necessary as of 13a2f620b2 (submodule: pass repo to
check_has_commit(), 2021-10-08), remove that call too.
This is the last caller of add_submodule_odb(), so remove that
function. (Submodule ODBs are still added as alternates via
add_submodule_odb_by_path().)
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git fetch --recurse-submodules" only considers populated
submodules (i.e. submodules that can be found by iterating the index),
which makes "git fetch" behave differently based on which commit is
checked out. As a result, even if the user has initialized all submodules
correctly, they may not fetch the necessary submodule commits, and
commands like "git checkout --recurse-submodules" might fail.
Teach "git fetch" to fetch cloned, changed submodules regardless of
whether they are populated. This is in addition to the current behavior
of fetching populated submodules (which is always attempted regardless
of what was fetched in the superproject, or even if nothing was fetched
in the superproject).
A submodule may be encountered multiple times (via the list of
populated submodules or via the list of changed submodules). When this
happens, "git fetch" only reads the 'populated copy' and ignores the
'changed copy'. Amend the verify_fetch_result() test helper so that we
can assert on which 'copy' is being read.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Rearrange functions so that submodule_update() no longer needs to be
forward declared.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This patch completes the conversion past the flag parsing of
`submodule update` by introducing a helper subcommand called
`submodule--helper update`. The behaviour of `submodule update` should
remain the same after this patch.
Prior to this patch, `submodule update` was implemented by piping the
output of `update-clone` (which clones all missing submodules, then
prints relevant information for all submodules) into
`run-update-procedure` (which reads the information and updates the
submodule tree).
With `submodule--helper update`, we iterate over the submodules and
update the submodule tree in the same process. This reuses most of
existing code structure, except that `update_submodule()` now updates
the submodule tree (instead of printing submodule information to be
consumed by another process).
Recursing on a submodule is done by calling a subprocess that launches
`submodule--helper update`, with a modified `--recursive-prefix` and
`--prefix` parameter.
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Shourya Shukla <periperidip@gmail.com>
Signed-off-by: Atharva Raykar <raykar.ath@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A later commit will combine the "update-clone" and
"run-update-procedure" commands, so run_update_procedure() will be
removed. Prepare for this by moving as much logic as possible out of
run_update_procedure() and into update_submodule2().
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor 'struct update_data' to hold the parsed args needed by "git
submodule--helper update" and refactor "update-clone" and
"run-update-procedure" (the functions that will be combined to form
"update") to use these options.
For "run-update-procedure", 'struct update_data' already holds its args,
so only arg parsing code needs to be updated.
For "update-clone", move its args from 'struct submodule_update_clone'
into 'struct update_data', and replace them with a pointer to 'struct
update_data'. Its other members hold the submodule iteration state of
"update-clone", so those are unchanged.
Incidentally, since we reformat the designated initializers of the
affected structs, also reformat MODULE_CLONE_DATA_INIT for consistency.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a later commit, update_clone()'s options will be stored in a struct
update_data instead of submodule_update_clone. Preemptively rename the
options struct to "opt" to shrink that commit's diff.
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use die_message() to print the "fatal: " prefix instead of doing it in
git-submodule.sh and remove a now-unnecessary exit code from "git
submodule--helper run-update-procedure".
Also, since die_message() adds the newline for us, replace an invocation
of die_with_status() with printf + exit invocations that do not add a
newline, but are otherwise identical to die_with_status().
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We switch to using the run-command API function that takes a
'struct child process', since we are using a lot of the options. This
will also make it simple to switch over to using 'capture_command()'
when we start handling the output of the command completely in C.
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Shourya Shukla <periperidip@gmail.com>
Signed-off-by: Atharva Raykar <raykar.ath@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* gc/submodule-update-part1:
submodule--helper update-clone: check for --filter and --init
submodule update: add tests for --filter
submodule--helper: remove ensure-core-worktree
submodule--helper update-clone: learn --init
submodule--helper: allow setting superprefix for init_submodule()
submodule--helper: refactor get_submodule_displaypath()
submodule--helper run-update-procedure: learn --remote
submodule--helper: don't use bitfield indirection for parse_options()
submodule--helper: get remote names from any repository
submodule--helper run-update-procedure: remove --suboid
submodule--helper: reorganize code for sh to C conversion
submodule--helper: remove update-module-mode
submodule tests: test for init and update failure output
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If the user suspends git while it is waiting for a keypress reset the
terminal before stopping and restore the settings when git resumes. If
the user tries to resume in the background print an error
message (taking care to use async safe functions) before stopping
again. Ideally we would reprint the prompt for the user when git
resumes but this patch just restarts the read().
The signal handler is established with sigaction() rather than using
sigchain_push() as this allows us to control the signal mask when the
handler is invoked and ensure SA_RESTART is used to restart the
read() when resuming.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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On macos the builtin "add -p" does not handle keys that generate
escape sequences because poll() does not work with terminals
there. Switch to using select() on non-windows platforms to work
around this.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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read_key_without_echo() reads from stdin but uses /dev/tty when it
disables echo. This is unfortunate as there no guarantee that stdin is
the same device as /dev/tty. The perl version of "add -p" uses stdin
when it sets the terminal mode, this commit does the same for the
builtin version. There is still a difference between the perl and
builtin versions though - the perl version will ignore any errors when
setting the terminal mode[1] and will still read single bytes when
stdin is not a terminal. The builtin version displays a warning if
setting the terminal mode fails and switches to reading a line at a
time.
[1] https://github.com/jonathanstowe/TermReadKey/blob/b061c913bbf7ff9bad9b4eea6caae189eacd6063/ReadKey.xs#L1090
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ævar Arnfjörð Bjarmason
Victoria Dye
Michael J Gruber
Johannes Schindelin
Carlo Marcelo Arenas Belón
Junio C Hamano
Glen Choo
Atharva Raykar
Phillip Wood