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The commit labels used to explain each side of conflicted hunks
placed by the sequencer machinery have been made more readable by
humans.
* en/sequencer-merge-labels:
sequencer: avoid garbled merge machinery messages due to commit labels
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Code clean-up.
* rs/preserve-merges-unused-code-removal:
rebase: remove unused function reschedule_last_action
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Code clean-up.
* rs/upload-pack-sigchain-fix:
upload-pack: remove superfluous sigchain_pop() call
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"git diff [<tree-ish>] $path" for a $path that is marked with i-t-a
bit was not showing the mode bits from the working tree.
* rp/ita-diff-modefix:
diff-lib: use worktree mode in diffs from i-t-a entries
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Updates to "git merge" tests, in preparation for a new merge
strategy backend.
* en/merge-tests:
t6425: be more flexible with rename/delete conflict messages
t642[23]: be more flexible for add/add conflicts involving pair renames
t6422, t6426: be more flexible for add/add conflicts involving renames
t6423: add an explanation about why one of the tests does not pass
t6416, t6423: clarify some comments and fix some typos
t6422: fix multiple errors with the mod6 test expectations
t6423: fix test setup for a couple tests
t6416, t6422: fix incorrect untracked file count
t6422: fix bad check against missing file
t6418: tighten delete/normalize conflict testcase
Collect merge-related tests to t64xx
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Earlier, to countermand the implicit "-m" option when the
"--first-parent" option is used with "git log", we added the
"--[no-]diff-merges" option in the jk/log-fp-implies-m topic. To
leave the door open to allow the "--diff-merges" option to take
values that instructs how patches for merge commits should be
computed (e.g. "cc"? "-p against first parent?"), redefine
"--diff-merges" to take non-optional value, and implement "off"
that means the same thing as "--no-diff-merges".
* so/log-diff-merges-opt:
t/t4013: add test for --diff-merges=off
doc/git-log: describe --diff-merges=off
revision: change "--diff-merges" option to require parameter
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"git log --first-parent -p" showed patches only for single-parent
commits on the first-parent chain; the "--first-parent" option has
been made to imply "-m". Use "--no-diff-merges" to restore the
previous behaviour to omit patches for merge commits.
* jk/log-fp-implies-m:
doc/git-log: clarify handling of merge commit diffs
doc/git-log: move "-t" into diff-options list
doc/git-log: drop "-r" diff option
doc/git-log: move "Diff Formatting" from rev-list-options
log: enable "-m" automatically with "--first-parent"
revision: add "--no-diff-merges" option to counteract "-m"
log: drop "--cc implies -m" logic
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NULL dereference fix.
* ma/stop-progress-null-fix:
progress: don't dereference before checking for NULL
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Test framework update.
* es/test-cmp-typocatcher:
test_cmp: diagnose incorrect arguments
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Recent versions of "git diff-files" shows a diff between the index
and the working tree for "intent-to-add" paths as a "new file"
patch; "git apply --cached" should be able to take "git diff-files"
and should act as an equivalent to "git add" for the path, but the
command failed to do so for such a path.
* rp/apply-cached-with-i-t-a:
t4140: test apply with i-t-a paths
apply: make i-t-a entries never match worktree
apply: allow "new file" patches on i-t-a entries
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"git bisect" learns the "--first-parent" option to find the first
breakage along the first-parent chain.
* al/bisect-first-parent:
bisect: combine args passed to find_bisection()
bisect: introduce first-parent flag
cmd_bisect__helper: defer parsing no-checkout flag
rev-list: allow bisect and first-parent flags
t6030: modernize "git bisect run" tests
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Mark error message for i18n.
* jk/sideband-error-l10n:
sideband: mark "remote error:" prefix for translation
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A no-op replacement function implemented as a C preprocessor macro
does not perform as good a job as one implemented as a "static
inline" function in catching errors in parameters; replace the
former with the latter in <git-compat-util.h> header.
* jc/noop-with-static-inline:
compat-util: type-check parameters of no-op replacement functions
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The existing backends for "git mergetool" based on variants of vim
have been refactored and then support for "nvim" has been added.
* pd/mergetool-nvimdiff:
mergetools: add support for nvimdiff (neovim) family
mergetool--lib: improve support for vimdiff-style tool variants
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Further preliminary change to refs API.
* hn/reftable-prep-part-2:
Make HEAD a PSEUDOREF rather than PER_WORKTREE.
Modify pseudo refs through ref backend storage
t1400: use git rev-parse for testing PSEUDOREF existence
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Stop when "sendmail.*" configuration variables are defined, which
could be a mistaken attempt to define "sendemail.*" variables.
* dd/send-email-config:
git-send-email: die if sendmail.* config is set
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The logic to find the ref transaction hook script attempted to
cache the path to the found hook without realizing that it needed
to keep a copied value, as the API it used returned a transitory
buffer space. This has been corrected.
* ps/ref-transaction-hook:
t1416: avoid hard-coded sha1 ids
refs: fix interleaving hook calls with reference-transaction hook
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sequencer's get_message() exists to provide good labels on conflict
hunks; see commits
d68565402a ("revert: clarify label on conflict hunks", 2010-03-20)
bf975d379d ("cherry-pick, revert: add a label for ancestor", 2010-03-20)
043a4492b3 ("sequencer: factor code out of revert builtin", 2012-01-11).
for background on this function. These labels are of the form
<commitID>... <commit summary>
or
parent of <commitID>... <commit summary>
These labels are then passed as branch names to the merge machinery.
However, these labels, as formatted, often also serve to confuse. For
example, if we have a rename involved in a content merge, then it
results in text such as the following:
<<<<<<<< HEAD:foo.c
int j;
========
int counter;
>>>>>>>> b01dface... Removed unnecessary stuff:bar.c
Or in various conflict messages, it can make it very difficult to read:
CONFLICT (rename/delete): foo.c deleted in b01dface... Removed
unnecessary stuff and renamed in HEAD. Version HEAD of foo.c left
in tree.
CONFLICT (file location): dir1/foo.c added in b01dface... Removed
unnecessary stuff inside a directory that was renamed in HEAD,
suggesting it should perhaps be moved to dir2/foo.c.
Make a minor change to remove the ellipses and add parentheses around
the commit summary; this makes all three examples much easier to read:
<<<<<<<< HEAD:foo.c
int j;
========
int counter;
>>>>>>>> b01dface (Removed unnecessary stuff):bar.c
CONFLICT (rename/delete): foo.c deleted in b01dface (Removed
unnecessary stuff) and renamed in HEAD. Version HEAD of foo.c left
in tree.
CONFLICT (file location): dir1/foo.c added in b01dface (Removed
unnecessary stuff) inside a directory that was renamed in HEAD,
suggesting it should perhaps be moved to dir2/foo.c.
Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "git blame --first-parent" option was not documented, but now
it is.
* rp/blame-first-parent-doc:
blame-options.txt: document --first-parent option
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Test cleanup.
* ma/test-quote-cleanup:
t4104: modernize and simplify quoting
t: don't spuriously close and reopen quotes
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A new helper function has_object() has been introduced to make it
easier to mark object existence checks that do and don't want to
trigger lazy fetches, and a few such checks are converted using it.
* jt/has_object:
fsck: do not lazy fetch known non-promisor object
pack-objects: no fetch when allow-{any,promisor}
apply: do not lazy fetch when applying binary
sha1-file: introduce no-lazy-fetch has_object()
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Portability fix.
* bc/sha-256-cvs-svn-updates:
git-cvsexportcommit: support Perl before 5.10.1
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The only caller of reschedule_last_action was removed by ef64bb328df
(rebase: strip unused code in git-rebase--preserve-merges.sh,
2018-05-28); remove this unused shell function as well.
Signed-off-by: René Scharfe <l.s.r@web.de>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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CMake support to build with MSVC for Windows bypassing the Makefile.
* ss/cmake-build:
ci: modification of main.yml to use cmake for vs-build job
cmake: support for building git on windows with msvc and clang.
cmake: support for building git on windows with mingw
cmake: support for testing git when building out of the source tree
cmake: support for testing git with ctest
cmake: installation support for git
cmake: generate the shell/perl/python scripts and templates, translations
Introduce CMake support for configuring Git
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The component to respond to "git fetch" request is made more
configurable to selectively allow or reject object filtering
specification used for partial cloning.
* tb/upload-pack-filters:
t5616: use test_i18ngrep for upload-pack errors
upload-pack.c: introduce 'uploadpackfilter.tree.maxDepth'
upload-pack.c: allow banning certain object filter(s)
list_objects_filter_options: introduce 'list_object_filter_config_name'
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Doc cleanup around "worktree".
* es/worktree-doc-cleanups:
git-worktree.txt: link to man pages when citing other Git commands
git-worktree.txt: make start of new sentence more obvious
git-worktree.txt: fix minor grammatical issues
git-worktree.txt: consistently use term "working tree"
git-worktree.txt: employ fixed-width typeface consistently
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The final leg of SHA-256 transition.
* bc/sha-256-part-3: (39 commits)
t: remove test_oid_init in tests
docs: add documentation for extensions.objectFormat
ci: run tests with SHA-256
t: make SHA1 prerequisite depend on default hash
t: allow testing different hash algorithms via environment
t: add test_oid option to select hash algorithm
repository: enable SHA-256 support by default
setup: add support for reading extensions.objectformat
bundle: add new version for use with SHA-256
builtin/verify-pack: implement an --object-format option
http-fetch: set up git directory before parsing pack hashes
t0410: mark test with SHA1 prerequisite
t5308: make test work with SHA-256
t9700: make hash size independent
t9500: ensure that algorithm info is preserved in config
t9350: make hash size independent
t9301: make hash size independent
t9300: use $ZERO_OID instead of hard-coded object ID
t9300: abstract away SHA-1-specific constants
t8011: make hash size independent
...
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Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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--diff-merges=off is the only accepted form for now, a synonym for
--no-diff-merges.
This patch is a preparation for adding more values, as well as supporting
--diff-merges=<parent>, where <parent> is single parent number to output diff
against.
Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The test added by e5256c82e5 (refs: fix interleaving hook calls with
reference-transaction hook, 2020-08-07) uses hard-coded sha1 object ids
in its expected output. This causes it to fail when run with
GIT_TEST_DEFAULT_HASH=sha256.
Let's make use of the oid variables we define earlier, as the rest of
the nearby tests do.
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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2997178ee6 (upload-pack: split check_unreachable() in two, prep for
get_reachable_list(), 2016-06-12) moved most code of has_unreachable()
into the new function do_reachable_revlist(). The latter takes care to
ignore SIGPIPE during its operations, and restores the original signal
handler before returning.
However, a sigchain_pop(SIGPIPE) call remained in the error handling
code of has_unreachable(), which does nothing because the stack is
empty after do_reachable_revlist() cleaned up after itself. Remove it.
Signed-off-by: René Scharfe <l.s.r@web.de>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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t6425 was very picky about the exact output message produced by a
rename/delete conflict, in a way that just scratches the surface of the
mess that was built into merge-recursive. The idea was that it would
try to find the possible combinations of different conflict types, and
when more than one was present for one path, it would try to provide a
combined message that covered all the cases.
There's a lot to unravel here...
First, there's a basic conflict type known as modify/delete, which is a
content conflict. It occurs when one side deletes a file, but the other
modifies it.
There is also a path conflict known as a rename/delete. This occurs
when one side deletes a path, and the other renames it. This is not a
content conflict, it is a path conflict. It will often occur in
combination with a content conflict, though, namely a modify/delete. As
such, these two were often combined.
Another type of conflict that can exist is a directory/file conflict.
For example, one side adds a new file at some path, and the other side
of history adds a directory at the same path. The path that was "added"
could have been put there by a rename, though. Thus, we have the
possibility of a single path being affected by a modify/delete, a
rename/delete, and a directory/file conflict.
In part, this was a natural by-product of merge-recursive's design.
Since it was doing a four way merge with the contents of the working
tree being the fourth factor it had to consider, it had working tree
handling spread all over the code. It also had directory/file conflict
handling spread everywhere through all the other types of conflicts.
And our testsuite has a huge number of directory/file conflict tests
because trying to get them right required modifying so many different
codepaths. A natural outgrowth of this kind of structure is conflict
messages that combine all the different types that the current codepath
is considering.
However, if we want to make the different conflict types orthogonal and
avoid repeating ourselves and getting very brittle code, then we need to
split the messages from these different conflict types apart. Besides,
trying to determine all possible permutations is a _royal_ mess. The
code to handle the rename/delete/directory/file conflict output is
already somewhat hard to parse, and is somewhat brittle. But if we
really wanted to go that route, then we'd have to have special handling
for the following types of combinations:
* rename/add/delete:
on side of history that didn't rename the given file, remove the file
instead and place an unrelated file in the way of the rename
* rename/rename(2to1)/mode conflict/delete/delete:
two different files, one executable and the other not, are renamed
to the same location, each side deletes the source file that the
other side renames
* rename/rename(1to2)/add/add:
file renamed differently on each side of history, with each side
placing an unrelated file in the way of the other
* rename/rename(1to2)/content conflict/file location/(D/F)/(D/F)/:
both sides modify a file in conflicting way, both rename that file
but to different paths, one side renames the directory which the
other side had renamed that file into causing it to possibly need a
transitive rename, and each side puts a directory in the way of the
other's path.
Let's back away from this path of insanity, and allow the different
types of conflicts to be handled by separate pieces of non-repeated code
by allowing the conflict messages to be split into their separate types.
(If multiple conflict types affect a single path, the conflict messages
can be printed sequentially.) Start this path with a simple change:
modify this test to be more flexible and accept the output either merge
backend (recursive or the new ort) will produce.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Much like the last commit accepted 'add/add' and 'rename/add'
interchangably, we also want to do the same for 'add/add' and
'rename/rename'. This also allows us to avoid the ambiguity in meaning
with 'rename/rename' (is it two separate files renamed to the same
location, or one file renamed on both sides but differently)?
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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merge-recursive treats an add/add conflict where one of the adds came
from a rename as a separate 'rename/add' type of conflict. However, if
there is not content conflict after the content merge(s), then the file
is not considered to be conflicted. That suggests the conflict type is
really just add/add. Other merge engines might choose to print messages
to the console that just refer to these as add/add conflicts; accept
both types of output.
Note: it could help to notify users if the three-way content merge of
the rename had content conflicts, because when we then go to two-way
merge THAT with the conflicting add we can get nested conflict markers.
merge-recursive, unfortunately, doesn't do that, but other merge engines
could.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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I had long since forgotten the idea behind this test and why it failed,
and took a little while to figure it out. To prevent others from having
to spend a similar time on it, add an explanation in the comments.
However, the reasoning in the explanation makes me question why I
considered it a failure at all. I'm not sure if I had a better reason
when I originally wrote it, but for now just add commentary about the
possible expectations and why it behaves the way it does right now.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This test had multiple issues causing it to fail for the wrong
reason(s):
* rename/rename(1to2) conflicts have always left the original source
path present in the working directory and index (at stage 1). Thus,
the triple rename/rename(1to2) should result in 9 unstaged files,
not 6.
* It messed up the three-way content merge for checking the results of
merging for one of the renames, accidentally turning it into a
two-way merge.
* It got the contents of the base files it was using to compare
against wrong, due to an off-by-one error, and overwrite-redirection
('>') instead of append-redirection ('>>').
* It used slightly too-long conflict markers
* It didn't include filenames in the conflict marker hunks (granted,
that was a shortcoming of the merge-recursive backend for rename/add
and rename/rename(2to1) conflicts, but since it's
test_expect_failure anyway we might as well make it expect our
preferred behavior rather than some compromise that we can't yet
reach anyway).
Fix these issues so that a merge backend which correctly handles these
kinds of nested conflicts will pass the test.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit da1e295e00 ("t604[236]: do not run setup in separate tests",
2019-10-22) removed approximately half the tests (which were setup-only
tests) in t6043 by turning them into functions that the subsequent test
would call as their first step. This ensured that any test from this
file could be run entirely independently of all the other tests in the
file. Unfortunately, the call to the new setup function was missed in
two of the test_expect_failure cases. Add them in.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apparently I don't know how to count untracked files, and since the
tests in question were marked as test_expect_failure, no one ever
noticed it until now. Correct the count, as these tests clearly create
three untracked files ('out', 'err', and 'file_count').
(I believe this problem arose because earlier incarnations counted lines
via a pipe to 'wc -l'. Reviewers asked that it be replaced by writing
the output to a file and using test_line_count, but when the temporary
output was added to a separate file, the count of untracked files should
have increased.)
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The testcase only required that the merge complete without conflict,
without specifying what the correct resolution was. Since normalization
changed this from a modify/delete to a not-modified/delete, the correct
resolution is to have the file be removed at the end. Add a check for
this resolution.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The tests for the merge machinery are spread over several places.
Collect them into t64xx for simplicity. Some notes:
t60[234]*.sh:
Merge tests started in t602*, overgrew bisect and remote tracking
tests in t6030, t6040, and t6041, and nearly overtook replace tests
in t6050. This made picking out relevant tests that I wanted to run
in a tighter loop slightly more annoying for years.
t303*.sh:
These started out as tests for the 'merge-recursive' toplevel command,
but did not restrict to that and had lots of overlap with the
underlying merge machinery.
t7405, t7613:
submodule-specific merge logic started out in submodule.c but was
moved to merge-recursive.c in commit 18cfc08866 ("submodule.c: move
submodule merging to merge-recursive.c", 2018-05-15). Since these
tests are about the logic found in the merge machinery, moving these
tests to be with the merge tests makes sense.
t7607, t7609:
Having tests spread all over the place makes it more likely that
additional tests related to a certain piece of logic grow in all those
other places. Much like t303*.sh, these two tests were about the
underlying merge machinery rather than outer levels.
Tests that were NOT moved:
t76[01]*.sh:
Other than the four tests mentioned above, the remaining tests in
t76[01]*.sh are related to non-recursive merge strategies, parameter
parsing, and other stuff associated with the highlevel builtin/merge.c
rather than the recursive merge machinery.
t3[45]*.sh:
The rebase testcases in t34*.sh also test the merge logic pretty
heavily; sometimes changes I make only trigger failures in the rebase
tests. The rebase tests are already nicely coupled together, though,
and I didn't want to mess that up. Similar comments apply for the
cherry-pick tests in t35*.sh.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In `stop_progress()`, we're careful to check that `p_progress` is
non-NULL before we dereference it, but by then we have already
dereferenced it when calling `finish_if_sparse(*p_progress)`. And, for
what it's worth, we'll go on to blindly dereference it again inside
`stop_progress_msg()`.
We could return early if we get a NULL-pointer, but let's go one step
further and BUG instead. The progress API handles NULL just fine, but
that's the NULL-ness of `*p_progress`, e.g., when running with
`--no-progress`. If `p_progress` is NULL, chances are that's a mistake.
For symmetry, let's do the same check in `stop_progress_msg()`, too.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update "git help guides" documentation organization.
* pb/guide-docs:
git.txt: add list of guides
Documentation: don't hardcode command categories twice
help: drop usage of 'common' and 'useful' for guides
command-list.txt: add missing 'gitcredentials' and 'gitremote-helpers'
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Error message fix.
* so/rev-parser-errormessage-fix:
revision: fix die() message for "--unpacked="
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Junio C Hamano
Elijah Newren
René Scharfe
Sergey Organov
Jeff King
Martin Ågren