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When the reachability bitmap is in effect, the "do not lose
recently created objects and those that are reachable from them"
safety to protect us from races were disabled by mistake, which has
been corrected.
* jk/prune-with-bitmap-fix:
prune: save reachable-from-recent objects with bitmaps
pack-bitmap: clean up include_check after use
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Doc update.
* po/diff-patch-doc:
doc: point to diff attribute in patch format docs
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The reflog expiry machinery has been taught to emit trace events.
* hn/trace-reflog-expiry:
refs/debug: trace into reflog expiry too
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Tweak a few tests for "log --format=..." that show timestamps in
various formats.
* ab/pretty-date-format-tests:
pretty tests: give --date/format tests a better description
pretty tests: simplify %aI/%cI date format test
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"git --config-env var=val cmd" weren't accepted (only
--config-env=var=val was).
* ps/config-env-option-with-separate-value:
git: support separate arg for `--config-env`'s value
git.txt: fix synopsis of `--config-env` missing the equals sign
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The variable `matches` used to hold the return of a `dir_path_match()`
call that was removed in 95c11ecc73 ("Fix error-prone fill_directory()
API; make it only return matches", 2020-04-01). Now `matches` will
always hold 0, which is the value it's initialized with; and the
condition `matches != MATCHED_EXACTLY` will always evaluate to true. So
let's remove this unnecessary variable.
Interestingly, it seems that `matches != MATCHED_EXACTLY` was already
unnecessary before 95c11ecc73. That's because `remove_directories` is
always set to 1 when we have pathspecs; So, in the condition
`!remove_directories && matches != MATCHED_EXACTLY`, we would either:
- have pathspecs (or have been given `-d`) and ignore `matches` because
`remove_directories` is 1; or
- not have pathspecs (nor `-d`) and end up just checking that
`0 != MATCHED_EXACTLY`, as `matches` would never get reassigned
after its zero initialization (because there is no pathspec to match).
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a later change, mailinfo will learn more options, let's switch to our
robust parse_options framework before that step.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a later change, we will use parse_option to parse mailinfo's options.
In mailinfo, both "-u", "-n", and "--encoding" try to set the same
field, with "-u" reset that field to some default value from
configuration variable "i18n.commitEncoding".
Let's delay the setting of that field until we finish processing all
options. By doing that, "i18n.commitEncoding" can be parsed on demand.
More importantly, it cleans the way for using parse_option.
This change introduces some inconsistent brackets "{}" in "if/else if"
construct, however, we will rewrite them in the next few changes.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The interactive machinery does not obey --dry-run. Die appropriately
if both flags are passed.
Signed-off-by: Øystein Walle <oystwa@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the logic of the i18n functions I added in 5e9637c6297 (i18n:
add infrastructure for translating Git with gettext, 2011-11-18) to
use pass-through functions when NO_GETTEXT is defined.
This speeds up the compilation time of commands that use this library
when NO_GETTEXT=Y is in effect. Loading it and POSIX.pm is around 20ms
on my machine, whereas it takes 2ms to just instantiate perl itself.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Regenerate the *.pm files in perl/build/* if the
NO_PERL_CPAN_FALLBACKS flag added to the *.pm files in
1aca69c0195 (perl Git::LoadCPAN: emit better errors under
NO_PERL_CPAN_FALLBACKS, 2018-03-03) is changed.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the logic to generate perl/build/* to regenerate those files if
GIT-PERL-DEFINES changes. This ensures that e.g. changing localedir
will result in correctly re-generated files.
I don't think that ever worked. The brokenness pre-dates my
20d2a30f8ff (Makefile: replace perl/Makefile.PL with simple make
rules, 2017-12-10).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 07d90eadb50 (Makefile: add Perl runtime prefix support,
2018-04-10) we have been declaring PERL_DEFINES right after assigning
to it, with the effect that the first PERL_DEFINES was ignored.
That bug didn't matter in practice since the first line had all the
same variables as the second, so we'd correctly re-generate
everything. It just made for confusing reading.
Let's remove that first assignment, and while we're at it split these
across lines to make them more maintainable.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move the definition of the structure around the open/close/read
functions introduced in 46bf043807c (streaming: a new API to read from
the object store, 2011-05-11) to instead populate "close" and "read"
members in the "struct git_istream".
This gets us rid of an extra pointer deference, and I think makes more
sense. The "close" and "read" functions are the primary interface to
the stream itself.
Let's also populate a "open" callback in the same struct. That's now
used by open_istream() after istream_source() decides what "open"
function should be used. This isn't needed to get rid of the
"stream_vtbl" variables, but makes sense for consistency.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the streaming interface to stop passing around the "struct
object_info" the open() functions.
As seen in 7ef2d9a2604 (streaming: read non-delta incrementally from a
pack, 2011-05-13) which introduced the "st->u.in_pack" assignments
being changed here only the open_istream_pack_non_delta() path need
these.
So let's instead do this when preparing the selected callback in the
istream_source() function. This might also allow the compiler to
reduce the lifetime of the "oi" variable, as we've moved it from
"git_istream()" to "istream_source()".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the {open,close,read}_method_decl() macros added in
46bf043807c (streaming: a new API to read from the object store,
2011-05-11) in favor of inlining the definition of the arguments of
these functions.
Since we'll end up using them via the "{open,close,read}_istream_fn"
types we don't gain anything in the way of compiler checking by using
these macros, and as of preceding commits we no longer need to declare
these argument lists twice. So declaring them at a distance just
serves to make the code less readable.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the indirection of discovering a function pointer to use via an
enum and virtual table. This refactors code added in
46bf043807c (streaming: a new API to read from the object store,
2011-05-11).
We can instead simply return an "open_istream_fn" for use from the
"istream_source()" selector function directly. This allows us to get
rid of the "incore", "loose" and "pack_non_delta" enum
variables. We'll return the functions instead.
The "stream_error" variable in that enum can likewise go in favor of
returning NULL, which is what the open_istream() was doing when it got
that value anyway.
We can thus remove the entire enum, and the "open_istream_tbl" virtual
table that (indirectly) referenced it.
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 46bf043807c (streaming: a new API to read from
the object store, 2011-05-11) to avoid forward declarations of the
functions it uses. We can instead move this code to the bottom of the
file, and thus avoid the open_method_decl() calls.
Aside from the addition of the "static helpers[...]" comment being
added here, and the removal of the forward declarations this is a
move-only change.
The style of the added "static helpers[...]" comment isn't in line
with our usual coding style, but is consistent with several other
comments used in this file, so let's use that style consistently here.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the set_index_sparse_config() function by folding it into
set_sparse_index_config(), which was its only user.
Since 122ba1f7b52 (sparse-checkout: toggle sparse index from builtin,
2021-03-30) the flow of this code hasn't made much sense, we'd get
"enabled" in set_sparse_index_config(), proceed to call
set_index_sparse_config() with it.
There we'd call prepare_repo_settings() and set
"repo->settings.sparse_index = 1", only to needlessly call
prepare_repo_settings() again in set_sparse_index_config() (where it
would early abort), and finally setting "repo->settings.sparse_index =
enabled".
Instead we can just call prepare_repo_settings() once, and set the
variable to "enabled" in the first place.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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For every new branch that git-p4 imports, it needs to find the commit
where it branched off its parent branch. While p4 doesn't record this
information explicitly, the first changelist on a branch is usually an
identical copy of the parent branch.
The method searchParent() tries to find a commit in the history of the
given "parent" branch whose tree exactly matches the initial changelist
of the new branch, "target". The code iterates through the parent
commits and compares each of them to this initial changelist using
diff-tree.
Since we already know the tree object name we are looking for, spawning
diff-tree for each commit is wasteful.
Use the "--format" option of "rev-list" to find out the tree object name
of each commit in the history, and find the tree whose name is exactly
the same as the tree of the target commit to optimize this.
This results in a considerable speed-up, at least on Windows. On one
Windows machine with a fairly large repository of about 16000 commits in
the parent branch, the current code takes over 7 minutes, while the new
code only takes just over 10 seconds for the same changelist:
Before:
$ time git p4 sync
Importing from/into multiple branches
Depot paths: //depot
Importing revision 31274 (100.0%)
Updated branches: b1
real 7m41.458s
user 0m0.000s
sys 0m0.077s
After:
$ time git p4 sync
Importing from/into multiple branches
Depot paths: //depot
Importing revision 31274 (100.0%)
Updated branches: b1
real 0m10.235s
user 0m0.000s
sys 0m0.062s
Signed-off-by: Joachim Kuebart <joachim.kuebart@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When importing a branch from p4, git-p4 searches the history of the parent
branch for the branch point. The test for the complex branch structure
ensures all files have the expected contents, but doesn't examine the
branch structure.
Check for the correct branch structure by making sure that the initial
commit on each branch is empty. This ensures that the initial commit's
parent is indeed the correct branch-off point.
Signed-off-by: Joachim Kuebart <joachim.kuebart@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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xdl_prepare_env() calls xdl_classify_record() which arranges for the
hashes of non-matching lines to be different so lines can be tested
for equality by comparing just their hashes.
This reduces the time taken to calculate the diff of v2.28.0 to
v2.29.0 by ~3-4%.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If find_word_boundaries() encounters a zero length match (which can be
caused by matching a newline or using '*' instead of '+' in the regex)
we stop splitting the input into words which generates an inaccurate
diff. To fix this increment the start point when there is a zero
length match and try a new match. This is safe as posix regular
expressions always return the longest available match so a zero length
match means there are no longer matches available from the current
position.
Commit bf82940dbf1 (color-words: enable REG_NEWLINE to help user,
2009-01-17) prevented matching newlines in negated character classes
but it is still possible for the user to have an explicit newline
match in the regex which could cause a zero length match.
One could argue that having explicit newline matches or using '*'
rather than '+' are user errors but it seems to be better to work
round them than produce inaccurate diffs.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We already have tests for the basic parallel-checkout operations. But
this code can also run be executed by other commands, such as
git-read-tree and git-sparse-checkout, which are currently not tested
with multiple workers. To promote a wider test coverage without
duplicating tests:
1. Add the GIT_TEST_CHECKOUT_WORKERS environment variable, to optionally
force parallel-checkout execution during the whole test suite.
2. Set this variable (with a value of 2) in the second test round of our
linux-gcc CI job. This round runs `make test` again with some
optional GIT_TEST_* variables enabled, so there is no additional
overhead in exercising the parallel-checkout code here.
Note that tests checking out less than two parallel-eligible entries
will fall back to the sequential mode. Nevertheless, it's still a good
exercise for the parallel-checkout framework as the fallback codepath
also writes the queued entries using the parallel-checkout functions
(only without spawning any worker).
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add tests to populate the working tree during clone and checkout using
sequential and parallel mode, to confirm that they produce identical
results. Also test basic checkout mechanics, such as checking for
symlinks in the leading directories and the abidance to --force.
Note: some helper functions are added to a common lib file which is only
included by t2080 for now. But they will also be used by other
parallel-checkout tests in the following patches.
Co-authored-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add tests to confirm that the `struct conv_attrs` data is correctly
passed from the main process to the workers, and that they can properly
convert the blobs before writing them to the working tree.
Also check that parallel-ineligible entries, such as regular files that
require external filters, are correctly smudge and written when
parallel-checkout is enabled.
Co-authored-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow checkout-index to use the parallel checkout framework, honoring
the checkout.workers configuration.
There are two code paths in checkout-index which call
`checkout_entry()`, and thus, can make use of parallel checkout:
`checkout_file()`, which is used to write paths explicitly given at the
command line; and `checkout_all()`, which is used to write all paths in
the index, when the `--all` option is given.
In both operation modes, checkout-index doesn't abort immediately on a
`checkout_entry()` failure. Instead, it tries to check out all remaining
paths before exiting with a non-zero exit code. To keep this behavior
when parallel checkout is being used, we must allow
`run_parallel_checkout()` to try writing the queued entries before we
exit, even if we already got an error code from a previous
`checkout_entry()` call.
However, `checkout_all()` doesn't return on errors, it calls `exit()`
with code 128. We could make it call `run_parallel_checkout()` before
exiting, but it makes the code easier to follow if we unify the exit
path for both checkout-index modes at `cmd_checkout_index()`, and let
this function take care of the interactions with the parallel checkout
API. So let's do that.
With this change, we also have to consider whether we want to keep using
128 as the error code for `git checkout-index --all`, while we use 1 for
`git checkout-index <path>` (even when the actual error is the same).
Since there is not much value in having code 128 only for `--all`, and
there is no mention about it in the docs (so it's unlikely that changing
it will break any existing script), let's make both modes exit with code
1 on `checkout_entry()` errors.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The following patch will add tests outside t0028 which will also need to
re-encode some strings. Extract the auxiliary encoding functions from
t0028 to a common lib file so that they can be reused.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add tests to confirm that path collisions are properly detected by
checkout workers, both to avoid race conditions and to report colliding
entries on clone.
Co-authored-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Pathspec-limited checkouts (like `git checkout *.txt`) are performed by
a code path that doesn't yet support parallel checkout because it calls
checkout_entry() directly, instead of unpack_trees(). Let's add parallel
checkout support for this code path too.
The transient cache entries allocated in checkout_merged() are now
allocated in a mem_pool which is only discarded after parallel checkout
finishes. This is done because the entries need to be valid when
run_parallel_checkout() is called.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow make_transient_cache_entry() to optionally receive a mem_pool
struct in which it should allocate the entry. This will be used in the
following patch, to store some transient entries which should persist
until parallel checkout finishes.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A HTTP-clone test introduced in 4fe788b1b0 ("builtin/clone.c: add
--reject-shallow option", 2021-04-01) only works in protocol v2, but is
not marked as such.
The aforementioned patch implements --reject-shallow for a variety of
situations, but usage of a protocol that requires a remote helper is not
one of them. (Such an implementation would require extending the remote
helper protocol to support the passing of a "reject shallow" option, and
then teaching it to both protocol-speaking ends.)
For now, to make it pass when GIT_TEST_PROTOCOL_VERSION=0 is passed, add
"-c protocol.version=2". A more complete solution would be either to
augment the remote helper protocol to support this feature or to return
a fatal error when using --reject-shallow with a protocol that uses a
remote helper.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach Git the push.negotiate config variable.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, the packfile negotiation step within a Git fetch cannot be
done independent of sending the packfile, even though there is at least
one application wherein this is useful. Therefore, make it possible for
this negotiation step to be done independently. A subsequent commit will
use this for one such application - push negotiation.
This feature is for protocol v2 only. (An implementation for protocol v0
would require a separate implementation in the fetch, transport, and
transport helper code.)
In the protocol, the main hindrance towards independent negotiation is
that the server can unilaterally decide to send the packfile. This is
solved by a "wait-for-done" argument: the server will then wait for the
client to say "done". In practice, the client will never say it; instead
it will cease requests once it is satisfied.
In the client, the main change lies in the transport and transport
helper code. fetch_refs_via_pack() performs everything needed - protocol
version and capability checks, and the negotiation itself.
There are 2 code paths that do not go through fetch_refs_via_pack() that
needed to be individually excluded: the bundle transport (excluded
through requiring smart_options, which the bundle transport doesn't
support) and transport helpers that do not support takeover. If or when
we support independent negotiation for protocol v0, we will need to
modify these 2 code paths to support it. But for now, report failure if
independent negotiation is requested in these cases.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a new testcase where one side of history renames:
olddir/ -> newdir/
and the other side of history renames:
olddir/a -> olddir/alpha
When using merge.directoryRenames=true, it seems logical to expect the
file to end up at newdir/alpha. Unfortunately, both merge-recursive and
merge-ort currently see this as a rename/rename conflict:
olddir/a -> newdir/a
vs.
olddir/a -> newdir/alpha
Suggesting that there's some extra logic we probably want to add
somewhere to allow this case to run without triggering a conflict. For
now simply document this known issue.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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[PATCH]: contrib/completion/git-completion.bash, there is a construct
where comment lines are placed between the command that is on
the upstream of a pipe and the command that is on the downstream
of a pipe in __git_complete_worktree_paths function.
Unfortunately, this script is also used by Zsh completion, but
Zsh mishandles this construct when "interactive_comments" option is not
set (by default it is off on macOS), resulting in a breakage:
$ git worktree remove [TAB]
$ git worktree remove __git_complete_worktree_paths:7: command not found: #
Move the comment, even though it explains what happens on the
downstream of the pipe and logically belongs where it is right
now, before the entire pipeline, to work around this problem.
Signed-off-by: Sardorbek Imomaliev <sardorbek.imomaliev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `trailer.<token>.command` configuration variable
specifies a command (run via the shell, so it does not have
to be a single name or path to the command, but can be a
shell script), and the first occurrence of substring $ARG is
replaced with the value given to the `interpret-trailer`
command for the token in a '--trailer <token>=<value>' argument.
This has three downsides:
* The use of $ARG in the mechanism misleads the users that
the value is passed in the shell variable, and tempt them
to use $ARG more than once, but that would not work, as
the second and subsequent $ARG are not replaced.
* Because $ARG is textually replaced without regard to the
shell language syntax, even '$ARG' (inside a single-quote
pair), which a user would expect to stay intact, would be
replaced, and worse, if the value had an unmatched single
quote (imagine a name like "O'Connor", substituted into
NAME='$ARG' to make it NAME='O'Connor'), it would result in
a broken command that is not syntactically correct (or
worse).
* The first occurrence of substring `$ARG` will be replaced
with the empty string, in the command when the command is
first called to add a trailer with the specified <token>.
This is a bad design, the nature of automatic execution
causes it to add a trailer that we don't expect.
Introduce a new `trailer.<token>.cmd` configuration that
takes higher precedence to deprecate and eventually remove
`trailer.<token>.command`, which passes the value as an
argument to the command. Instead of "$ARG", users can
refer to the value as positional argument, $1, in their
scripts. At the same time, in order to allow
`git interpret-trailers` to better simulate the behavior
of `git command -s`, 'trailer.<token>.cmd' will not
automatically execute.
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Christian Couder <christian.couder@gmail.com>
Signed-off-by: ZheNing Hu <adlternative@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the original documentation of `trailer.<token>.command`,
some descriptions are easily misunderstood. So let's modify
it to increase its readability.
In addition, clarify that `$ARG` in command can only be
replaced once.
Signed-off-by: ZheNing Hu <adlternative@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We stopped allowing symlinks for .gitmodules files in 10ecfa7649
(verify_path: disallow symlinks in .gitmodules, 2018-05-04), and we
stopped following symlinks for .gitattributes, .gitignore, and .mailmap
in the commits from 204333b015 (Merge branch 'jk/open-dotgitx-with-nofollow',
2021-03-22). The reasons are discussed in detail there, but we never
adjusted the documentation to let users know.
This hasn't been a big deal since the point is that such setups were
mildly broken and thought to be unusual anyway. But it certainly doesn't
hurt to be clear and explicit about it.
Suggested-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the commits merged in via 204333b015 (Merge branch
'jk/open-dotgitx-with-nofollow', 2021-03-22), we stopped following
symbolic links for .gitattributes, .gitignore, and .mailmap files.
Let's teach fsck to warn that these symlinks are not going to do
anything. Note that this is just a warning, and won't block the objects
via transfer.fsckObjects, since there are reported to be cases of this
in the wild (and even once fixed, they will continue to exist in the
commit history of those projects, but are not particularly dangerous).
Note that we won't add these to the existing gitmodules block in the
fsck code. The logic for gitmodules is a bit more complicated, as we
also check the content of non-symlink instances we find. But for these
new files, there is no content check; we're just looking at the name and
mode of the tree entry (and we can avoid even the complicated name
checks in the common case that the mode doesn't indicate a symlink).
We can reuse the test helper function we defined for .gitmodules, though
(it needs some slight adjustments for the fsck error code, and because
we don't block these symlinks via verify_path()).
Note that I didn't explicitly test the transfer.fsckObjects case here
(nor does the existing .gitmodules test that it blocks a push). The
translation of fsck severities to outcomes is covered in general in
t5504.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have tests that cover various filesystem-specific spellings of
".gitmodules", because we need to reliably identify that path for some
security checks. These are from dc2d9ba318 (is_{hfs,ntfs}_dotgitmodules:
add tests, 2018-05-12), with the actual code coming from e7cb0b4455
(is_ntfs_dotgit: match other .git files, 2018-05-11) and 0fc333ba20
(is_hfs_dotgit: match other .git files, 2018-05-02).
Those latter two commits also added similar matching functions for
.gitattributes and .gitignore. These ended up not being used in the
final series, and are currently dead code. But in preparation for them
being used in some fsck checks, let's make sure they actually work by
throwing a few basic tests at them. Likewise, let's cover .mailmap
(which does need matching code added).
I didn't bother with the whole battery of tests that we cover for
.gitmodules. These functions are all based on the same generic matcher,
so it's sufficient to test most of the corner cases just once.
Note that the ntfs magic prefix names in the tests come from the
algorithm described in e7cb0b4455 (and are different for each file).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In t7450 we check that both verify_path() and fsck catch malformed
.gitmodules entries in trees. However, we don't check that we catch
filesystem-equivalent forms of these (e.g., ".GITMOD~1" on Windows).
Our name-matching functions are exercised well in t0060, but there's
nothing to test that we correctly call the matching functions from the
actual fsck and verify_path() code.
So instead of testing just .gitmodules, let's repeat our tests for a few
basic cases. We don't need to be exhaustive here (t0060 handles that),
but just make sure we hit one name of each type.
Besides pushing the tests into a function that takes the path as a
parameter, we'll need to do a few things:
- adjust the directory name to accommodate the tests running multiple
times
- set core.protecthfs for index checks. Fsck always protects all types
by default, but we want to be able to exercise the HFS routines on
every system. Note that core.protectntfs is already the default
these days, but it doesn't hurt to explicitly label our need for it.
- we'll also take the filename ("gitmodules") as a parameter. All
calls use the same name for now, but a future patch will extend this
to handle other .gitfoo files. Note that our fake-content symlink
destination is somewhat .gitmodules specific. But it isn't necessary
for other files (which don't do a content check). And it happens to
be a valid attribute and ignore file anyway.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 10ecfa7649 (verify_path: disallow symlinks in .gitmodules,
2018-05-04) made it impossible to load a symlink .gitmodules file into
the index. However, there are no tests of this behavior. Let's make sure
this case is covered. We can easily reuse the test setup created by
the matching b7b1fca175 (fsck: complain when .gitmodules is a symlink,
2018-05-04).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This script has already expanded beyond its original intent of ".. in
submodule names" to include other malicious submodule bits. Let's update
the name and description to reflect that, as well as the fact that we'll
soon be adding similar tests for other dotfiles (.gitattributes, etc).
We'll also renumber it to move it out of the group of submodule-specific
tests.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Many calls to report() in fsck_tree() are kept on a single line and are
quite long. Most were pretty big to begin with, but have gotten even
longer over the years as we've added more parameters. Let's accept the
churn of wrapping them in order to conform to our usual line limits.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit b2f2039c2b (fsck: accept an oid instead of a "struct tree" for
fsck_tree(), 2019-10-18) introduced a new "oid" parameter to
fsck_tree(), and we pass it to the report() function when we find
problems. However, that is shadowed within the tree-walking loop by the
existing "oid" variable which we use to store the oid of each tree
entry. As a result, we may report the wrong oid for some problems we
detect within the loop (the entry oid, instead of the tree oid).
Our tests didn't catch this because they checked only that we found the
expected fsck problem, not that it was attached to the correct object.
Let's rename both variables in the function to avoid confusion. This
makes the diff a little noisy (e.g., all of the report() calls outside
the loop were already correct but need to be touched), but makes sure we
catch all cases and will avoid similar confusion in the future.
And we can update the test to be a bit more specific and catch this
problem.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since GETTEXT_POISON does not exist anymore, there is no point warning
people about whether we should use test_i18ngrep. This is doubly
confusing because the comment was describing why it was OK to use grep,
but it got caught up in the mass conversion of 674ba34038 (fsck: mark
strings for translation, 2018-11-10).
Note there are other uses of test_i18ngrep in this script which are now
obsolete; I'll save those for a mass-cleanup. My goal here was just to
fix the confusing comment in code I'm about to refactor.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Format-patch doesn't have a way to format merges in a way that can be
applied by git-am (or any other tool), and so it just omits them.
However, this may be a surprising implication for users who are not well
versed in how the tool works. Let's add a note to the documentation
making this more clear.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A negative delta depth makes no sense, and the code is not prepared to
handle it. If passed "--depth=-1" on the command line, then this line
from break_delta_chains():
cur->depth = (total_depth--) % (depth + 1);
triggers a divide-by-zero. This is undefined behavior according to the C
standard, but on POSIX systems results in SIGFPE killing the process.
This is certainly one way to inform the use that the command was
invalid, but it's a bit friendlier to just treat it as "don't allow any
deltas", which we already do for --depth=0.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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