Since these macros already take a `keyvar' pointer of a known type,
we can rely on OFFSETOF_VAR to get the correct offset without
relying on non-portable `__typeof__' and `offsetof'.
Argument order is also rearranged, so `keyvar' and `member' are
sequential as they are used as: `keyvar->member'
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
While we cannot rely on a `__typeof__' operator being portable
to use with `offsetof'; we can calculate the pointer offset
using an existing pointer and the address of a member using
pointer arithmetic for compilers without `__typeof__'.
This allows us to simplify usage of hashmap iterator macros
by not having to specify a type when a pointer of that type
is already given.
In the future, list iterator macros (e.g. list_for_each_entry)
may also be implemented using OFFSETOF_VAR to save hackers the
trouble of using container_of/list_entry macros and without
relying on non-portable `__typeof__'.
v3: use `__typeof__' to avoid clang warnings
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
`hashmap_free_entries' behaves like `container_of' and passes
the offset of the hashmap_entry struct to the internal
`hashmap_free_' function, allowing the function to free any
struct pointer regardless of where the hashmap_entry field
is located.
`hashmap_free' no longer takes any arguments aside from
the hashmap itself.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
And add *_entry variants to perform container_of as necessary
to simplify most callers.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Inspired by list_for_each_entry in the Linux kernel.
Once again, these are somewhat compromised usability-wise
by compilers lacking __typeof__ support.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Another step in eliminating the requirement of hashmap_entry
being the first member of a struct.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Using `container_of' can be verbose and choosing names for
intermediate "struct hashmap_entry" pointers is a hard problem.
So introduce "*_entry" APIs inspired by similar linked-list
APIs in the Linux kernel.
Unfortunately, `__typeof__' is not portable C, so we need an
extra parameter to specify the type.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a step towards removing the requirement for
hashmap_entry being the first field of a struct.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is less error-prone than "void *" as the compiler now
detects invalid types being passed.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is less error-prone than "void *" as the compiler now
detects invalid types being passed.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is less error-prone than "const void *" as the compiler
now detects invalid types being passed.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
C compilers do type checking to make life easier for us. So
rely on that and update all hashmap_entry_init callers to take
"struct hashmap_entry *" to avoid future bugs while improving
safety and readability.
Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some tests print a file before searching for a pattern using
test_i18ngrep. This is useful when debugging tests with --verbose when
the pattern is not found as expected.
Since 63b1a175ee (t: make 'test_i18ngrep' more informative on failure,
2018-02-08) test_i18ngrep already shows the contents of a file that
doesn't match the expected pattern, though.
So don't bother doing the same unconditionally up-front. The contents
are not interesting if the expected pattern is found, and showing it
twice if it doesn't match is of no use.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The testsuite will eventually learn how to run using an algorithm other
than SHA-1. In preparation for this, teach the test_oid family of
functions how to look up the empty blob and empty tree values so they
can be used.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test_oid function provides a mechanism for looking up hash algorithm
information, but it doesn't specify a way to discover the hash algorithm
name. Knowing this information is useful if one wants to invoke the
test-tool helper for the algorithm in use, such as in our pack
generation library.
While it's currently possible to inspect the global variable holding
this value, in the future we'll allow specifying an algorithm for
storage and an algorithm for display, so it's better to abstract this
value away. To assist with this, provide a named entry in the
algorithm-specific lookup table that prints the algorithm in use.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the `--immediate` option is in effect, any test failure will
immediately exit the test script. Together with `--write-junit-xml`, we
will want the JUnit-style `.xml` file to be finalized (and not leave the
XML incomplete). Let's make it so.
This comes in particularly handy when trying to debug via Azure
Pipelines, where the JUnit-style XML is consumed to present the test
results in an informative and helpful way.
While at it, also handle the `error()` code path.
The only remaining code path that sets `GIT_EXIT_OK` happens whenever
the trash directory could not be set up, i.e. long before the JUnit XML
was written, therefore we should _not_ try to finalize that XML in that
case.
It is tempting to change the `immediate` code path to just hand off to
`error`, simplifying the code in the process. That would, however,
result in a change of behavior (an additional error message) in the test
suite, which is outside of the purview of the current patch series: its
goal is to allow building Git with Visual Studio and testing it with a
portable version of Git for Windows.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git for Windows jumps through hoops to provide a development environment
that allows to build Git and to run its test suite. To that end, an
entire MSYS2 system, including GNU make and GCC is offered as "the Git
for Windows SDK". It does come at a price: an initial download of said
SDK weighs in with several hundreds of megabytes, and the unpacked SDK
occupies ~2GB of disk space.
A much more native development environment on Windows is Visual Studio.
To help contributors use that environment, we already have a Makefile
target `vcxproj` that generates a commit with project files (and other
generated files), and Git for Windows' `vs/master` branch is
continuously re-generated using that target.
The idea is to allow building Git in Visual Studio, and to run
individual tests using a Portable Git.
The one missing thing is a way to run the entire test suite: neither
`make` nor `prove` are required to run Git, therefore Git for Windows
does not support those commands in the Portable Git.
To help with that, add a simple test helper that exercises the
`run_processes_parallel()` function to allow for running test scripts in
parallel (which is really necessary, especially on Windows, as Git's
test suite takes such a long time to run).
This will also come in handy for the upcoming change to our Azure
Pipeline: we will use this helper in a Portable Git to test the Visual
Studio build of Git.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When Git wants to spawn a child Git process inside a worktree's
subdirectory while `GIT_DIR` is set, we need to take care of specifying
the work tree's top-level directory explicitly because it cannot be
discovered: the current directory is _not_ the top-level directory of
the work tree, and neither is it inside the parent directory of
`GIT_DIR`.
This fixes the problem where `git stash apply` would report pretty much
everything deleted or untracked when run inside a worktree's
subdirectory.
To make sure that we do not introduce the "reverse problem", i.e. when
`GIT_WORK_TREE` is defined but `GIT_DIR` is not, we simply make sure
that both are set.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
So far, `--jobs=<n>` only parallelizes submodule fetches/clones, not
`--multiple` fetches, which is unintuitive, given that the option's name
does not say anything about submodules in particular.
Let's change that. With this patch, also fetches from multiple remotes
are parallelized.
For backwards-compatibility (and to prepare for a use case where
submodule and multiple-remote fetches may need different parallelization
limits), the config setting `submodule.fetchJobs` still only controls
the submodule part of `git fetch`, while the newly-introduced setting
`fetch.parallel` controls both (but can be overridden for submodules
with `submodule.fetchJobs`).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a new "discard" event type for trace2 event destinations. When the
trace2 file count check creates a sentinel file, it will include the
normal trace2 output in the sentinel, along with this new discard
event.
Writing this message into the sentinel file is useful for tracking how
often the file count check triggers in practice.
Bump up the event format version since we've added a new event type.
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
trace2 can write files into a target directory. With heavy usage, this
directory can fill up with files, causing difficulty for
trace-processing systems.
This patch adds a config option (trace2.maxFiles) to set a maximum
number of files that trace2 will write to a target directory. The
following behavior is enabled when the maxFiles is set to a positive
integer:
When trace2 would write a file to a target directory, first check
whether or not the traces should be discarded. Traces should be
discarded if:
* there is a sentinel file declaring that there are too many files
* OR, the number of files exceeds trace2.maxFiles.
In the latter case, we create a sentinel file named git-trace2-discard
to speed up future checks.
The assumption is that a separate trace-processing system is dealing
with the generated traces; once it processes and removes the sentinel
file, it should be safe to generate new trace files again.
The default value for trace2.maxFiles is zero, which disables the file
count check.
The config can also be overridden with a new environment variable:
GIT_TRACE2_MAX_FILES.
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The graph coloring logic for octopus merges currently has a bug. This
can be seen git.git with 74c7cfa875 (Merge of
http://members.cox.net/junkio/git-jc.git, 2005-05-05), whose second
child is 211232bae6 (Octopus merge of the following five patches.,
2005-05-05).
If one runs
git log --graph 74c7cfa875
one can see that the octopus merge is colored incorrectly. In
particular, the horizontal dashes are off by one color. Each horizontal
dash should be the color of the line to their bottom-right. Instead, they
are currently the color of the line to their bottom.
Demonstrate this breakage with a few sets of test cases. These test
cases should show not only simple cases of the bug occuring but trickier
situations that may not be handled properly in any attempt to fix the
bug.
While we're at it, include a passing test case as a canary in case an
attempt to fix the bug breaks existing operation.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In a future test case, we will be extending the commit graph. As a
result, explicitly list the tags that will generate the graph so that
when future additions are made, the current graph illustrations won't be
affected.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Before, the expect files of the test case were being generated in the
setup method. However, it would make more sense to generate these files
within the test cases that actually use them so that it's obvious to
future readers where the expected values are coming from.
Move the generation of the expect files in their own respective test
cases.
While we're at it, we want to establish a pattern in this test suite
that, firstly, a non-colored test case is given then, immediately after,
the colored version is given.
Switch test cases "log --graph with tricky octopus merge, no color" and
"log --graph with tricky octopus merge with colors" so that the "no
color" version appears first.
This patch is best viewed with `--color-moved`.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the previous commit, we extended test_merge() so that it could
perform octopus merges. Now that the restriction is lifted, use
test_merge() to perform the octopus merge instead of manually
duplicating test_merge() functionality.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently test_merge() only allows developers to merge in one branch.
However, this restriction is artificial and there is no reason why it
needs to be this way.
Extend test_merge() to allow the specification of multiple branches so
that octopus merges can be performed.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Multiple changes here:
* add a test for a tag of a blob
* add a test for a tag of a tag of a commit
* add a comment to the tests for (possibly nested) tags of trees,
making it clear that these tests are doing much less than you might
expect
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a new option, --mark-tags, which will output mark identifiers with
each tag object. This improves the incremental export story with
--export-marks since it will allow us to record that annotated tags have
been exported, and it is also needed as a step towards supporting nested
tags.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
fast-import has support for both an --import-marks flag and an
--import-marks-if-exists flag; the latter of which will not die() if the
file does not exist. fast-export only had support for an --import-marks
flag; add an --import-marks-if-exists flag for consistency.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
fast-export and fast-import have nice --import-marks flags which allow
for incremental migrations. However, if there is a mark in
fast-export's file of marks without a corresponding mark in the one for
fast-import, then we run the risk that fast-export tries to send new
objects relative to the mark it knows which fast-import does not,
causing fast-import to fail.
This arises in practice when there is a filter of some sort running
between the fast-export and fast-import processes which prunes some
commits programmatically. Provide such a filter with the ability to
alias pruned commits to their most recent non-pruned ancestor.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Mark identifiers are used in fast-export and fast-import to provide a
label to refer to earlier content. Blobs are given labels because they
need to be referenced in the commits where they first appear with a
given filename, and commits are given labels because they can be the
parents of other commits. Tags were never given labels, probably
because they were viewed as unnecessary, but that presents two problems:
1. It leaves us without a way of referring to previous tags if we
want to create a tag of a tag (or higher nestings).
2. It leaves us with no way of recording that a tag has already been
imported when using --export-marks and --import-marks.
Fix these problems by allowing an optional mark label for tags.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If our input stream includes a tag which is later deleted, we were not
properly deleting it. We did have a step which would delete it, but we
left a tag in the tag list noting that it needed to be updated, and the
updating of annotated tags occurred AFTER ref deletion. So, when we
record that a tag needs to be deleted, also remove it from the list of
annotated tags to update.
While this has likely been something that has not happened in practice,
it will come up more in order to support nested tags. For nested tags,
we either need to give temporary names to the intermediate tags and then
delete them, or else we need to use the final name for the intermediate
tags. If we use the final name for the intermediate tags, then in order
to keep the sanity check that someone doesn't try to update the same tag
twice, we need to delete the ref after creating the intermediate tag.
So, either way nested tags imply the need to delete temporary inner tag
references.
Helped-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Report the current hunk count and total number of hunks for the
current file in the prompt. Also adjust the expected output in
some tests to match.
Signed-off-by: Kunal Tyagi <tyagi.kunal@live.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When parsing the diffs, `range-diff` expects to see the prefixes `a/`
and `b/` in the diff headers.
These prefixes can be forced off via the config setting
`diff.noprefix=true`. As `range-diff` is not prepared for that
situation, this will cause a segmentation fault.
Let's avoid that by passing the `--no-prefix` option to the `git log`
process that generates the diffs that `range-diff` wants to parse.
And of course expect the output to have no prefixes, then.
Reported-by: Michal Suchánek <msuchanek@suse.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test was originally designed for the case where user reported
that setting GIT_SSH to a .bat file with spaces in path fails on
Windows: https://github.com/git-for-windows/git/issues/692
The test has two different problems:
1. It succeeds with AND without fix eb7c7863 that addressed user's
problem. This happens because the core problem was misunderstood,
leading to conclusion that git is unable to start any programs with
spaces in path on Win7. But in fact
a) Bug only affected cmd.exe scripts, such as .bat scripts
b) Bug only happened when cmd.exe received at least two quoted args
c) Bug happened on any Windows (verified on Win10).
Therefore, correct test must involve .bat script and two quoted args.
2. In Visual Studio build, it fails to run, because 'test-fake-ssh.exe'
is copied away from its dependencies 'libiconv.dll' and 'zlib1.dll'.
Fix both problems by using .bat script instead of 'test-fake-ssh.exe'.
NOTE: With this change, the test now correctly fails without eb7c7863.
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In commit 743474cbfa ("merge-recursive: provide a better label for
diff3 common ancestor", 2019-08-17), the label for the common ancestor
was changed from always being
"merged common ancestors"
to instead be based on the number of merge bases:
>=2: "merged common ancestors"
1: <abbreviated commit hash>
0: "<empty tree>"
Unfortunately, this did not take into account that when we have a single
merge base, that merge base could be fake or constructed. In such
cases, this resulted in a label of "00000000". Of course, the previous
label of "merged common ancestors" was also misleading for this case.
Since we have an API that is explicitly about creating fake merge base
commits in merge_recursive_generic(), we should provide a better label
when using that API with one merge base. So, when
merge_recursive_generic() is called with one merge base, set the label
to:
"constructed merge base"
Note that callers of merge_recursive_generic() include the builtin
commands git-am (in combination with git apply --build-fake-ancestor),
git-merge-recursive, and git-stash.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, when promisor_remote_move_to_tail() is called for a
promisor_remote which is currently the final element in promisors, a
cycle is created in the promisors linked list. This cycle leads to a
double free later on in promisor_remote_clear() when the final element
of the promisors list is removed: promisors is set to promisors->next (a
no-op, as promisors->next == promisors); the previous value of promisors
is free()'d; then the new value of promisors (which is equal to the
previous value of promisors) is also free()'d. This double-free error
was unrecoverable for the user without removing the filter or re-cloning
the repo and hoping to miss this edge case.
Now, when promisor_remote_move_to_tail() would be a no-op, just do a
no-op. In cases of promisor_remote_move_to_tail() where r is not already
at the tail of the list, it works as before.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Acked-by: Christian Couder <christian.couder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commits 404ebceda0 ("dir: also check directories for matching
pathspecs", 2019-09-17) and 89a1f4aaf7 ("dir: if our pathspec might
match files under a dir, recurse into it", 2019-09-17) added calls to
match_pathspec() and do_match_pathspec() passing along their pathspec
parameter. Both match_pathspec() and do_match_pathspec() assume the
pathspec argument they are given is non-NULL. It turns out that
unpack-tree.c's verify_clean_subdirectory() calls read_directory() with
pathspec == NULL, and it is possible on case insensitive filesystems for
that NULL to make it to these new calls to match_pathspec() and
do_match_pathspec(). Add appropriate checks on the NULLness of pathspec
to avoid a segfault.
In case the negation throws anyone off (one of the calls was to
do_match_pathspec() while the other was to !match_pathspec(), yet no
negation of the NULLness of pathspec is used), there are two ways to
understand the differences:
* The code already handled the pathspec == NULL cases before this
series, and this series only tried to change behavior when there was
a pathspec, thus we only want to go into the if-block if pathspec is
non-NULL.
* One of the calls is for whether to recurse into a subdirectory, the
other is for after we've recursed into it for whether we want to
remove the subdirectory itself (i.e. the subdirectory didn't match
but something under it could have). That difference in situation
leads to the slight differences in logic used (well, that and the
slightly unusual fact that we don't want empty pathspecs to remove
untracked directories by default).
Denton found and analyzed one issue and provided the patch for the
match_pathspec() call, SZEDER figured out why the issue only reproduced
for some folks and not others and provided the testcase, and I looked
through the remainder of the series and noted the do_match_pathspec()
call that should have the same check.
Co-authored-by: Denton Liu <liu.denton@gmail.com>
Co-authored-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A configuration variable tells "git fetch" to write the commit
graph after finishing.
* ds/commit-graph-on-fetch:
fetch: add fetch.writeCommitGraph config setting
"git rebase --autostash <upstream> <branch>", when <branch> is
different from the current branch, incorrectly moved the tip of the
current branch, which has been corrected.
* bw/rebase-autostash-keep-current-branch:
builtin/rebase.c: Remove pointless message
builtin/rebase.c: make sure the active branch isn't moved when autostashing
Output from trace2 subsystem is formatted more prettily now.
* jh/trace2-pretty-output:
trace2: cleanup whitespace in perf format
trace2: cleanup whitespace in normal format
quote: add sq_append_quote_argv_pretty()
trace2: trim trailing whitespace in normal format error message
trace2: remove dead code in maybe_add_string_va()
trace2: trim whitespace in region messages in perf target format
trace2: cleanup column alignment in perf target format
"git rebase --keep-base <upstream>" tries to find the original base
of the topic being rebased and rebase on top of that same base,
which is useful when running the "git rebase -i" (and its limited
variant "git rebase -x").
The command also has learned to fast-forward in more cases where it
can instead of replaying to recreate identical commits.
* dl/rebase-i-keep-base:
rebase: teach rebase --keep-base
rebase tests: test linear branch topology
rebase: fast-forward --fork-point in more cases
rebase: fast-forward --onto in more cases
rebase: refactor can_fast_forward into goto tower
t3432: test for --no-ff's interaction with fast-forward
t3432: distinguish "noop-same" v.s. "work-same" in "same head" tests
t3432: test rebase fast-forward behavior
t3431: add rebase --fork-point tests
The command line completion support (in contrib/) learned about the
"--skip" option of "git revert" and "git cherry-pick".
* dl/complete-cherry-pick-revert-skip:
status: mention --skip for revert and cherry-pick
completion: add --skip for cherry-pick and revert
completion: merge options for cherry-pick and revert
Various fixes to codepaths gcc 9 had trouble following dataflow.
* jk/misc-uninitialized-fixes:
pack-objects: drop packlist index_pos optimization
test-read-cache: drop namelen variable
diff-delta: set size out-parameter to 0 for NULL delta
bulk-checkin: zero-initialize hashfile_checkpoint
pack-objects: use object_id in packlist_alloc()
git-am: handle missing "author" when parsing commit
Fix an earlier regression in the test suite, which mistakenly
stopped running HTTPD tests.
* sg/git-test-boolean:
ci: restore running httpd tests
t/lib-git-svn.sh: check GIT_TEST_SVN_HTTPD when running SVN HTTP tests
Start discouraging the use of "git filter-branch".
* en/filter-branch-deprecation:
t9902: use a non-deprecated command for testing
Recommend git-filter-repo instead of git-filter-branch
t6006: simplify, fix, and optimize empty message test
Fix an earlier regression to "git push --all" which should have
been forbidden when the target remote repository is set to be a
mirror.
* tg/push-all-in-mirror-forbidden:
push: disallow --all and refspecs when remote.<name>.mirror is set
