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"git fetch --set-upstream" did not check if there is a current
branch, leading to a segfault when it is run on a detached HEAD,
which has been corrected.
* ab/fetch-set-upstream-while-detached:
pull, fetch: fix segfault in --set-upstream option
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Teach diff and blame to work well with sparse index.
* ld/sparse-diff-blame:
blame: enable and test the sparse index
diff: enable and test the sparse index
diff: replace --staged with --cached in t1092 tests
repo-settings: prepare_repo_settings only in git repos
test-read-cache: set up repo after git directory
commit-graph: return if there is no git directory
git: ensure correct git directory setup with -h
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"git name-rev" has been tweaked to give output that is shorter and
easier to understand.
* en/name-rev-shorter-output:
name-rev: prefer shorter names over following merges
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"git fetch" without the "--update-head-ok" option ought to protect
a checked out branch from getting updated, to prevent the working
tree that checks it out to go out of sync. The code was written
before the use of "git worktree" got widespread, and only checked
the branch that was checked out in the current worktree, which has
been updated.
(originally called ak/fetch-not-overwrite-any-current-branch)
* ak/protect-any-current-branch:
branch: protect branches checked out in all worktrees
receive-pack: protect current branch for bare repository worktree
receive-pack: clean dead code from update_worktree()
fetch: protect branches checked out in all worktrees
worktree: simplify find_shared_symref() memory ownership model
branch: lowercase error messages
receive-pack: lowercase error messages
fetch: lowercase error messages
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Extend the signing of objects with SSH keys and learn to pay
attention to the key validity time range when verifying.
* fs/ssh-signing-key-lifetime:
ssh signing: verify ssh-keygen in test prereq
ssh signing: make fmt-merge-msg consider key lifetime
ssh signing: make verify-tag consider key lifetime
ssh signing: make git log verify key lifetime
ssh signing: make verify-commit consider key lifetime
ssh signing: add key lifetime test prereqs
ssh signing: use sigc struct to pass payload
t/fmt-merge-msg: make gpgssh tests more specific
t/fmt-merge-msg: do not redirect stderr
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When "git log" implicitly enabled the "decoration" processing
without being explicitly asked with "--decorate" option, it failed
to read and honor the settings given by the "--decorate-refs"
option.
* jk/log-decorate-opts-with-implicit-decorate:
log: load decorations with --simplify-by-decoration
log: handle --decorate-refs with userformat "%d"
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Code clean-up.
* ab/die-with-bug:
object.c: use BUG(...) no die("BUG: ...") in lookup_object_by_type()
pathspec: use BUG(...) not die("BUG:%s:%d....", <file>, <line>)
strbuf.h: use BUG(...) not die("BUG: ...")
pack-objects: use BUG(...) not die("BUG: ...")
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"git worktree add" showed "Preparing worktree" message to the
standard output stream, but when it failed, the message from die()
went to the standard error stream. Depending on the order the
stdio streams are flushed at the program end, this resulted in
confusing output. It has been corrected by sending all the chatty
messages to the standard error stream.
* es/worktree-chatty-to-stderr:
git-worktree.txt: add missing `-v` to synopsis for `worktree list`
worktree: send "chatty" messages to stderr
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Prepare tests on ref API to help testing reftable backends.
* hn/reflog-tests:
refs/debug: trim trailing LF from reflog message
test-ref-store: tweaks to for-each-reflog-ent format
t1405: check for_each_reflog_ent_reverse() more thoroughly
test-ref-store: don't add newline to reflog message
show-branch: show reflog message
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When the "git push" command is killed while the receiving end is
trying to report what happened to the ref update proposals, the
latter used to die, due to SIGPIPE. The code now ignores SIGPIPE
to increase our chances to run the post-receive hook after it
happens.
* rj/receive-pack-avoid-sigpipe-during-status-reporting:
receive-pack: ignore SIGPIPE while reporting status to client
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API clean-up.
* ab/run-command:
run-command API: remove "env" member, always use "env_array"
difftool: use "env_array" to simplify memory management
run-command API: remove "argv" member, always use "args"
run-command API users: use strvec_push(), not argv construction
run-command API users: use strvec_pushl(), not argv construction
run-command tests: use strvec_pushv(), not argv assignment
run-command API users: use strvec_pushv(), not argv assignment
upload-archive: use regular "struct child_process" pattern
worktree: stop being overly intimate with run_command() internals
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"Zealous diff3" style of merge conflict presentation has been added.
* en/zdiff3:
update documentation for new zdiff3 conflictStyle
xdiff: implement a zealous diff3, or "zdiff3"
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"git submodule deinit" for a submodule whose .git metadata
directory is embedded in its working tree refused to work, until
the submodule gets converted to use the "absorbed" form where the
metadata directory is stored in superproject, and a gitfile at the
top-level of the working tree of the submodule points at it. The
command is taught to convert such submodules to the absorbed form
as needed.
* mp/absorb-submodule-git-dir-upon-deinit:
submodule: absorb git dir instead of dying on deinit
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A small simplification of API.
* hn/create-reflog-simplify:
refs: drop force_create argument of create_reflog API
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Various operating modes of "git reset" have been made to work
better with the sparse index.
* vd/sparse-reset:
unpack-trees: improve performance of next_cache_entry
reset: make --mixed sparse-aware
reset: make sparse-aware (except --mixed)
reset: integrate with sparse index
reset: expand test coverage for sparse checkouts
sparse-index: update command for expand/collapse test
reset: preserve skip-worktree bit in mixed reset
reset: rename is_missing to !is_in_reset_tree
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On platforms where ulong is shorter than size_t, code paths that
shifted 1 or 1U to the left lacked the necessary cast to size_t,
which have been corrected.
* po/size-t-for-vs:
object-file.c: LLP64 compatibility, upcast unity for left shift
diffcore-delta.c: LLP64 compatibility, upcast unity for left shift
repack.c: LLP64 compatibility, upcast unity for left shift
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The advice message given by "git pull" when the user hasn't made a
choice between merge and rebase still said that the merge is the
default, which no longer is the case. This has been corrected.
* ah/advice-pull-has-no-preference-between-rebase-and-merge:
pull: don't say that merge is "the default strategy"
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Leakfix.
* ab/checkout-branch-info-leakfix:
checkout: fix "branch info" memory leaks
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"git var GIT_DEFAULT_BRANCH" is a way to see what name is used for
the newly created branch if "git init" is run.
* tw/var-default-branch:
var: add GIT_DEFAULT_BRANCH variable
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Doc update.
* ja/doc-cleanup:
init doc: --shared=0xxx does not give umask but perm bits
doc: git-init: clarify file modes in octal.
doc: git-http-push: describe the refs as pattern pairs
doc: uniformize <URL> placeholders' case
doc: use three dots for indicating repetition instead of star
doc: git-ls-files: express options as optional alternatives
doc: use only hyphens as word separators in placeholders
doc: express grammar placeholders between angle brackets
doc: split placeholders as individual tokens
doc: fix git credential synopsis
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To be able to extend the payload metadata with things like its creation
timestamp or the creators ident we remove the payload parameters to
check_signature() and use the already existing sigc->payload field
instead, only adding the length field to the struct. This also allows
us to get rid of the xmemdupz() calls in the verify functions. Since
sigc is now used to input data as well as output the result move it to
the front of the function list.
- Add payload_length to struct signature_check
- Populate sigc.payload/payload_len on all call sites
- Remove payload parameters to check_signature()
- Remove payload parameters to internal verify_* functions and use sigc
instead
- Remove xmemdupz() used for verbose output since payload is now already
populated.
Signed-off-by: Fabian Stelzer <fs@gigacodes.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a segfault in the --set-upstream option added in
24bc1a12926 (pull, fetch: add --set-upstream option, 2019-08-19) added
in v2.24.0.
The code added there did not do the same checking we do for "git
branch" itself since 8efb8899cfe (branch: segfault fixes and
validation, 2013-02-23), which in turn fixed the same sort of segfault
I'm fixing now in "git branch --set-upstream-to", see
6183d826ba6 (branch: introduce --set-upstream-to, 2012-08-20).
The warning message I'm adding here is an amalgamation of the error
added for "git branch" in 8efb8899cfe, and the error output
install_branch_config() itself emits, i.e. it trims "refs/heads/" from
the name and says "branch X on remote", not "branch refs/heads/X on
remote".
I think it would make more sense to simply die() here, but in the
other checks for --set-upstream added in 24bc1a12926 we issue a
warning() instead. Let's do the same here for consistency for now.
There was an earlier submitted alternate way of fixing this in [1],
due to that patch breaking threading with the original report at [2] I
didn't notice it before authoring this version. I think the more
detailed warning message here is better, and we should also have tests
for this behavior.
The --no-rebase option to "git pull" is needed as of the recently
merged 7d0daf3f12f (Merge branch 'en/pull-conflicting-options',
2021-08-30).
1. https://lore.kernel.org/git/20210706162238.575988-1-clemens@endorphin.org/
2. https://lore.kernel.org/git/CAG6gW_uHhfNiHGQDgGmb1byMqBA7xa8kuH1mP-wAPEe5Tmi2Ew@mail.gmail.com/
Reported-by: Clemens Fruhwirth <clemens@endorphin.org>
Reported-by: Jan Pokorný <poki@fnusa.cz>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change this code added in da93d12b004 (pack-objects: be incredibly
anal about stdio semantics, 2006-04-02) to use BUG() instead.
See 1a07e59c3e2 (Update messages in preparation for i18n, 2018-07-21)
for when the "BUG: " prefix was added, and [1] for background on the
Solaris behavior that prompted the exhaustive error checking in this
fgets() loop.
1. https://lore.kernel.org/git/824.1144007555@lotus.CS.Berkeley.EDU/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Enable the sparse index for the 'git blame' command. The index was already
not expanded with this command, so the most interesting thing to do is to
add tests that verify that 'git blame' behaves correctly when the sparse
index is enabled and that its performance improves. More specifically, these
cases are:
1. The index is not expanded for 'blame' when given paths in the sparse
checkout cone at multiple levels.
2. Performance measurably improves for 'blame' with sparse index when given
paths in the sparse checkout cone at multiple levels.
The `p2000` tests demonstrate a ~60% execution time reduction when running
'blame' for a file two levels deep and and a ~30% execution time reduction
for a file three levels deep.
Test before after
----------------------------------------------------------------
2000.62: git blame f2/f4/a (full-v3) 0.31 0.32 +3.2%
2000.63: git blame f2/f4/a (full-v4) 0.29 0.31 +6.9%
2000.64: git blame f2/f4/a (sparse-v3) 0.55 0.23 -58.2%
2000.65: git blame f2/f4/a (sparse-v4) 0.57 0.23 -59.6%
2000.66: git blame f2/f4/f3/a (full-v3) 0.77 0.85 +10.4%
2000.67: git blame f2/f4/f3/a (full-v4) 0.78 0.81 +3.8%
2000.68: git blame f2/f4/f3/a (sparse-v3) 1.07 0.72 -32.7%
2000.99: git blame f2/f4/f3/a (sparse-v4) 1.05 0.73 -30.5%
We do not include paths outside the sparse checkout cone because blame
does not support blaming files that are not present in the working
directory. This is true in both sparse and full checkouts.
Signed-off-by: Lessley Dennington <lessleydennington@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Enable the sparse index within the 'git diff' command. Its implementation
already safely integrates with the sparse index because it shares code
with the 'git status' and 'git checkout' commands that were already
integrated. For more details see:
d76723ee53 (status: use sparse-index throughout, 2021-07-14)
1ba5f45132 (checkout: stop expanding sparse indexes, 2021-06-29)
The most interesting thing to do is to add tests that verify that 'git
diff' behaves correctly when the sparse index is enabled. These cases are:
1. The index is not expanded for 'diff' and 'diff --staged'
2. 'diff' and 'diff --staged' behave the same in full checkout, sparse
checkout, and sparse index repositories in the following partially-staged
scenarios (i.e. the index, HEAD, and working directory differ at a given
path):
1. Path is within sparse-checkout cone
2. Path is outside sparse-checkout cone
3. A merge conflict exists for paths outside sparse-checkout cone
The `p2000` tests demonstrate a ~44% execution time reduction for 'git
diff' and a ~86% execution time reduction for 'git diff --staged' using a
sparse index:
Test before after
-------------------------------------------------------------
2000.30: git diff (full-v3) 0.33 0.34 +3.0%
2000.31: git diff (full-v4) 0.33 0.35 +6.1%
2000.32: git diff (sparse-v3) 0.53 0.31 -41.5%
2000.33: git diff (sparse-v4) 0.54 0.29 -46.3%
2000.34: git diff --cached (full-v3) 0.07 0.07 +0.0%
2000.35: git diff --cached (full-v4) 0.07 0.08 +14.3%
2000.36: git diff --cached (sparse-v3) 0.28 0.04 -85.7%
2000.37: git diff --cached (sparse-v4) 0.23 0.03 -87.0%
Co-authored-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Lessley Dennington <lessleydennington@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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name-rev has a MERGE_TRAVERSAL_WEIGHT to say that traversing a second or
later parent of a merge should be 65535 times more expensive than a
first-parent traversal, as per ac076c29ae8d (name-rev: Fix non-shortest
description, 2007-08-27). The point of this weight is to prefer names
like
v2.32.0~1471^2
over names like
v2.32.0~43^2~15^2~11^2~20^2~31^2
which are two equally valid names in git.git for the same commit. Note
that the first follows 1472 parent traversals compared to a mere 125 for
the second. Weighting all traversals equally would clearly prefer the
second name since it has fewer parent traversals, but humans aren't
going to be traversing commits and they tend to have an easier time
digesting names with fewer segments. The fact that the former only has
two segments (~1471, ^2) makes it much simpler than the latter which has
six segments (~43, ^2, ~15, etc.). Since name-rev is meant to "find
symbolic names suitable for human digestion", we prefer fewer segments.
However, the particular rule implemented in name-rev would actually
prefer
v2.33.0-rc0~11^2~1
over
v2.33.0-rc0~20^2
because both have precisely one second parent traversal, and it gives
the tie breaker to shortest number of total parent traversals. Fewer
segments is more important for human consumption than number of hops, so
we'd rather see the latter which has one fewer segment.
Include the generation in is_better_name() and use a new
effective_distance() calculation so that we prefer fewer segments in
the printed name over fewer total parent traversals performed to get the
answer.
== Side-note on tie-breakers ==
When there are the same number of segments for two different names, we
actually use the name of an ancestor commit as a tie-breaker as well.
For example, for the commit cbdca289fb in the git.git repository, we
prefer the name v2.33.0-rc0~112^2~1 over v2.33.0-rc0~57^2~5. This is
because:
* cbdca289fb is the parent of 25e65b6dd5, which implies the name for
cbdca289fb should be the first parent of the preferred name for
25e65b6dd5
* 25e65b6dd5 could be named either v2.33.0-rc0~112^2 or
v2.33.0-rc0~57^2~4, but the former is preferred over the latter due
to fewer segments
* combine the two previous facts, and the name we get for cbdca289fb
is "v2.33.0-rc0~112^2~1" rather than "v2.33.0-rc0~57^2~5".
Technically, we get this for free out of the implementation since we
only keep track of one name for each commit as we walk history (and
re-add parents to the queue if we find a better name for those parents),
but the first bullet point above ensures users get results that feel
more consistent.
== Alternative Ideas and Meanings Discussed ==
One suggestion that came up during review was that shortest
string-length might be easiest for users to consume. However, such a
scheme would be rather computationally expensive (we'd have to track all
names for each commit as we traversed the graph) and would additionally
come with the possibly perplexing result that on a linear segment of
history we could rapidly swap back and forth on names:
MYTAG~3^2 would be preferred over MYTAG~9998
MYTAG~3^2~1 would NOT be preferred over MYTAG~9999
MYTAG~3^2~2 might be preferred over MYTAG~10000
Another item that came up was possible auxiliary semantic meanings for
name-rev results either before or after this patch. The basic answer
was that the previous implementation had no known useful auxiliary
semantics, but that for many repositories (most in my experience), the
new scheme does. In particular, the new name-rev output can often be
used to answer the question, "How or when did this commit get merged?"
Since that usefulness depends on how merges happen within the repository
and thus isn't universally applicable, details are omitted here but you
can see them at [1].
[1] https://lore.kernel.org/git/CABPp-BEeUM+3NLKDVdak90_UUeNghYCx=Dgir6=8ixvYmvyq3Q@mail.gmail.com/
Finally, it was noted that the algorithm could be improved by just
explicitly tracking the number of segments and using both it and
distance in the comparison, instead of giving a magic number that tries
to blend the two (and which therefore might give suboptimal results in
repositories with really huge numbers of commits that periodically merge
older code). However, "[this patch] seems to give us a much better
results than the current code, so let's take it and leave further
futzing outside the scope."
Signed-off-by: Elijah Newren <newren@gmail.com>
Acked-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The order in which the stdout and stderr streams are flushed is not
guaranteed to be the same across platforms or `libc` implementations.
This lack of determinism can lead to anomalous and potentially confusing
output if normal (stdout) output is flushed after error (stderr) output.
For instance, the following output which clearly indicates a failure due
to a fatal error:
% git worktree add ../foo bar
Preparing worktree (checking out 'bar')
fatal: 'bar' is already checked out at '.../wherever'
has been reported[1] on Microsoft Windows to appear as:
% git worktree add ../foo bar
fatal: 'bar' is already checked out at '.../wherever'
Preparing worktree (checking out 'bar')
which may confuse the reader into thinking that the command somehow
recovered and ran to completion despite the error.
This problem crops up because the "chatty" status message "Preparing
worktree" is sent to stdout, whereas the "fatal" error message is sent
to stderr. One way to fix this would be to flush stdout manually before
git-worktree reports any errors to stderr.
However, common practice in Git is for "chatty" messages to be sent to
stderr. Therefore, a more appropriate fix is to adjust git-worktree to
conform to that practice by sending its "chatty" messages to stderr
rather than stdout as is currently the case.
There may be concern that relocating messages from stdout to stderr
could break existing tooling, however, these messages are already
internationalized, thus are unstable. And, indeed, the "Preparing
worktree" message has already been the subject of somewhat significant
changes in 2c27002a0a (worktree: improve message when creating a new
worktree, 2018-04-24). Moreover, there is existing precedent, such as
68b939b2f0 (clone: send diagnostic messages to stderr, 2013-09-18) which
likewise relocated "chatty" messages from stdout to stderr for
git-clone.
[1]: https://lore.kernel.org/git/CA+34VNLj6VB1kCkA=MfM7TZR+6HgqNi5-UaziAoCXacSVkch4A@mail.gmail.com/T/
Reported-by: Baruch Burstein <bmburstein@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before, --reflog option would look for '\t' in the reflog message. As refs.c
already parses the reflog line, the '\t' was never found, and show-branch
--reflog would always say "(none)" as reflog message
Add test.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It's possible to specify --simplify-by-decoration but not --decorate. In
this case we do respect the simplification, but we don't actually show
any decorations. However, it works by lazy-loading the decorations when
needed; this is discussed in more detail in 0cc7380d88 (log-tree: call
load_ref_decorations() in get_name_decoration(), 2019-09-08).
This works for basic cases, but will fail to respect any --decorate-refs
option (or its variants). Those are handled only when cmd_log_init()
loads the ref decorations up front, which is only when --decorate is
specified explicitly (or as of the previous commit, when the userformat
asks for %d or similar).
We can solve this by making sure to load the decorations if we're going
to simplify using them but they're not otherwise going to be displayed.
The new test shows a simple case that fails without this patch. Note
that we expect two commits in the output: the one we asked for by
--decorate-refs, and the initial commit. The latter is just a quirk of
how --simplify-by-decoration works. Arguably it may be a bug, but it's
unrelated to this patch (which is just about the loading of the
decorations; you get the same behavior before this patch with an
explicit --decorate).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In order to show ref decorations, we first have to load them. If you
run:
git log --decorate
then git-log will recognize the option and load them up front via
cmd_log_init(). Likewise if log.decorate is set.
If you don't say --decorate explicitly, but do mention "%d" or "%D" in
the output format, like so:
git log --format=%d
then this also works, because we lazy-load the ref decorations. This has
been true since 3b3d443feb (add '%d' pretty format specifier to show
decoration, 2008-09-04), though the lazy-load was later moved into
log-tree.c.
But there's one problem: that lazy-load just uses the defaults; it
doesn't take into account any --decorate-refs options (or its exclude
variant, or their config). So this does not work:
git log --decorate-refs=whatever --format=%d
It will decorate using all refs, not just the specified ones. This has
been true since --decorate-refs was added in 65516f586b (log: add option
to choose which refs to decorate, 2017-11-21). Adding further confusion
is that it _may_ work because of the auto-decoration feature. If that's
in use (and it often is, as it's the default), then if the output is
going to stdout, we do enable decorations early (and so load them up
front, respecting the extra options). But otherwise we do not. So:
git log --decorate-refs=whatever --format=%d >some-file
would typically behave differently than it does when the output goes to
the pager or terminal!
The solution is simple: we should recognize in cmd_log_init() that we're
going to show decorations, and make sure we load them there. We already
check userformat_find_requirements(), so we can couple this with our
existing code there.
There are two new tests. The first shows off the actual fix. The second
makes sure that our fix doesn't cause us to stomp on an existing
--decorate option (see the new comment in the code, as well).
Reported-by: Josh Rampersad <josh.rampersad@voiceflow.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A bare repository won’t have a working tree at "..", but it may still
have separate working trees created with git worktree. We should protect
the current branch of such working trees from being updated or deleted,
according to receive.denyCurrentBranch.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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update_worktree() can only be called with a non-NULL worktree parameter,
because that’s the only case where we set do_update_worktree = 1.
worktree->path is always initialized to non-NULL.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refuse to fetch into the currently checked out branch of any working
tree, not just the current one.
Fixes this previously reported bug:
https://lore.kernel.org/git/cb957174-5e9a-5603-ea9e-ac9b58a2eaad@mathema.de/
As a side effect of using find_shared_symref, we’ll also refuse the
fetch when we’re on a detached HEAD because we’re rebasing or bisecting
on the branch in question. This seems like a sensible change.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Storing the worktrees list in a static variable meant that
find_shared_symref() had to rebuild the list on each call (which is
inefficient when the call site is in a loop), and also that each call
invalidated the pointer returned by the previous call (which is
confusing).
Instead, make it the caller’s responsibility to pass in the worktrees
list and manage its lifetime.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Documentation/CodingGuidelines says “do not end error messages with a
full stop” and “do not capitalize the first word”. Clean up existing
messages, some of which we will be touching in later steps in the
series, that deviate from these rules in this file, as a preparation for
the main part of the topic.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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|
Documentation/CodingGuidelines says “do not end error messages with a
full stop” and “do not capitalize the first word”. Clean up existing
messages, some of which we will be touching in later steps in the
series, that deviate from these rules in this file, as a preparation for
the main part of the topic.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Visual Studio reports C4334 "was 64-bit shift intended" warning
because of size mismatch.
Promote unity to the matching type to fit with the `&` operator.
Signed-off-by: Philip Oakley <philipoakley@iee.email>
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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"zdiff3" is identical to ordinary diff3 except that it allows compaction
of common lines on the two sides of history at the beginning or end of
the conflict hunk. For example, the following diff3 conflict:
1
2
3
4
<<<<<<
A
B
C
D
E
||||||
5
6
======
A
X
C
Y
E
>>>>>>
7
8
9
has common lines 'A', 'C', and 'E' on the two sides. With zdiff3, one
would instead get the following conflict:
1
2
3
4
A
<<<<<<
B
C
D
||||||
5
6
======
X
C
Y
>>>>>>
E
7
8
9
Note that the common lines, 'A', and 'E' were moved outside the
conflict. Unlike with the two-way conflicts from the 'merge'
conflictStyle, the zdiff3 conflict is NOT split into multiple conflict
regions to allow the common 'C' lines to be shown outside a conflict,
because zdiff3 shows the base version too and the base version cannot be
reasonably split.
Note also that the removing of lines common to the two sides might make
the remaining text inside the conflict region match the base text inside
the conflict region (for example, if the diff3 conflict had '5 6 E' on
the right side of the conflict, then the common line 'E' would be moved
outside and both the base and right side's remaining conflict text would
be the lines '5' and '6'). This has the potential to surprise users and
make them think there should not have been a conflict, but there
definitely was a conflict and it should remain.
Based-on-patch-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Co-authored-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood123@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Leakfix.
* tb/plug-pack-bitmap-leaks:
pack-bitmap.c: more aggressively free in free_bitmap_index()
pack-bitmap.c: don't leak type-level bitmaps
midx.c: write MIDX filenames to strbuf
builtin/multi-pack-index.c: don't leak concatenated options
builtin/repack.c: avoid leaking child arguments
builtin/pack-objects.c: don't leak memory via arguments
t/helper/test-read-midx.c: free MIDX within read_midx_file()
midx.c: don't leak MIDX from verify_midx_file
midx.c: clean up chunkfile after reading the MIDX
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Things like "git -c branch.sort=bogus branch new HEAD", i.e. the
operation modes of the "git branch" command that do not need the
sort key information, no longer errors out by seeing a bogus sort
key.
* jc/fix-ref-sorting-parse:
for-each-ref: delay parsing of --sort=<atom> options
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"git stash" learned the "--staged" option to stash away what has
been added to the index (and nothing else).
* so/stash-staged:
stash: get rid of unused argument in stash_staged()
stash: implement '--staged' option for 'push' and 'save'
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* vd/sparse-reset:
unpack-trees: improve performance of next_cache_entry
reset: make --mixed sparse-aware
reset: make sparse-aware (except --mixed)
reset: integrate with sparse index
reset: expand test coverage for sparse checkouts
sparse-index: update command for expand/collapse test
reset: preserve skip-worktree bit in mixed reset
reset: rename is_missing to !is_in_reset_tree
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Remove the `ensure_full_index` guard on `read_from_tree` and update `git
reset --mixed` to ensure it can use sparse directory index entries wherever
possible. Sparse directory entries are reset using `diff_tree_oid`, which
requires `change` and `add_remove` functions to process the internal
contents of the sparse directory. The `recursive` diff option handles cases
in which `reset --mixed` must diff/merge files that are nested multiple
levels deep in a sparse directory.
The use of pathspecs with `git reset --mixed` introduces scenarios in which
internal contents of sparse directories may be matched by the pathspec. In
order to reset *all* files in the repo that may match the pathspec, the
following conditions on the pathspec require index expansion before
performing the reset:
* "magic" pathspecs
* wildcard pathspecs that do not match only in-cone files or entire sparse
directories
* literal pathspecs matching something outside the sparse checkout
definition
Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
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Disable `command_requires_full_index` repo setting and add
`ensure_full_index` guards around code paths that cannot yet use sparse
directory index entries. `reset --soft` does not modify the index, so no
compatibility changes are needed for it to function without expanding the
index. For all other reset modes (`--mixed`, `--hard`, `--keep`, `--merge`),
the full index is expanded to prevent cache tree corruption and invalid
variable accesses.
Additionally, the `read_cache()` check verifying an uncorrupted index is
moved after argument parsing and preparing the repo settings. The index is
not used by the preceding argument handling, but `read_cache()` must be run
*after* enabling sparse index for the command (so that the index is not
expanded unnecessarily) and *before* using the index for reset (so that it
is verified as uncorrupted).
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the "env" member from "struct child_process" in favor of always
using the "env_array". As with the preceding removal of "argv" in
favor of "args" this gets rid of current and future oddities around
memory management at the API boundary (see the amended API docs).
For some of the conversions we can replace patterns like:
child.env = env->v;
With:
strvec_pushv(&child.env_array, env->v);
But for others we need to guard the strvec_pushv() with a NULL check,
since we're not passing in the "v" member of a "struct strvec",
e.g. in the case of tmp_objdir_env()'s return value.
Ideally we'd rename the "env_array" member to simply "env" as a
follow-up, since it and "args" are now inconsistent in not having an
"_array" suffix, and seemingly without any good reason, unless we look
at the history of how they came to be.
But as we've currently got 122 in-tree hits for a "git grep env_array"
let's leave that for now (and possibly forever). Doing that rename
would be too disruptive.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Amend code added in 03831ef7b50 (difftool: implement the functionality
in the builtin, 2017-01-19) to use the "env_array" in the
run_command.[ch] API. Now we no longer need to manage our own
"index_env" buffer.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change a pattern of hardcoding an "argv" array size, populating it and
assigning to the "argv" member of "struct child_process" to instead
use "strvec_push()" to add data to the "args" member.
As noted in the preceding commit this moves us further towards being
able to remove the "argv" member in a subsequent commit
These callers could have used strvec_pushl(), but moving to
strvec_push() makes the diff easier to read, and keeps the arguments
aligned as before.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change a pattern of hardcoding an "argv" array size, populating it and
assigning to the "argv" member of "struct child_process" to instead
use "strvec_pushl()" to add data to the "args" member.
This implements the same behavior as before in fewer lines of code,
and moves us further towards being able to remove the "argv" member in
a subsequent commit.
Since we've entirely removed the "argv" variable(s) we can be sure
that no potential logic errors of the type discussed in a preceding
commit are being introduced here, i.e. ones where the local "argv" was
being modified after the assignment to "struct child_process"'s
"argv".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This pattern added [1] in seems to have been intentional, but since
[2] and [3] we've wanted do initialization of what's now the "struct
strvec" "args" and "env_array" members. Let's not trample on that
initialization here.
1. 1bc01efed17 (upload-archive: use start_command instead of fork,
2011-11-19)
2. c460c0ecdca (run-command: store an optional argv_array, 2014-05-15)
3. 9a583dc39e (run-command: add env_array, an optional argv_array for
env, 2014-10-19)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
|
Junio C Hamano
Fabian Stelzer
Ævar Arnfjörð Bjarmason
Lessley Dennington
Elijah Newren
Eric Sunshine
Han-Wen Nienhuys
Jeff King
Anders Kaseorg
Philip Oakley
Phillip Wood
Victoria Dye