| Age | Commit message (Collapse) | Author | Files | Lines |
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Add an option to print the object format used for input, output, or
storage. This allows shell scripts to discover the hash algorithm in
use.
Since the transition plan allows for multiple input algorithms, document
that we may provide multiple results for input, and the format that the
results may take. While we don't support this now, documenting it early
means that script authors can future-proof their scripts for when we do.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A configuration variable tells "git fetch" to write the commit
graph after finishing.
* ds/commit-graph-on-fetch:
fetch: add fetch.writeCommitGraph config setting
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"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
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The internal code originally invented for ".gitignore" processing
got reshuffled and renamed to make it less tied to "excluding" and
stress more that it is about "matching", as it has been reused for
things like sparse checkout specification that want to check if a
path is "included".
* ds/include-exclude:
unpack-trees: rename 'is_excluded_from_list()'
treewide: rename 'exclude' methods to 'pattern'
treewide: rename 'EXCL_FLAG_' to 'PATTERN_FLAG_'
treewide: rename 'struct exclude_list' to 'struct pattern_list'
treewide: rename 'struct exclude' to 'struct path_pattern'
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"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
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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
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Code cleanup.
* rs/get-tagged-oid:
use get_tagged_oid()
tag: factor out get_tagged_oid()
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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
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Resurrect a performance hack.
* nd/switch-and-restore:
checkout: add simple check for 'git checkout -b'
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Straighten out the use of strbuf_detach() API function.
* rs/strbuf-detach:
grep: use return value of strbuf_detach()
log-tree: always use return value of strbuf_detach()
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The list-objects-filter API (used to create a sparse/lazy clone)
learned to take a combined filter specification.
* md/list-objects-filter-combo:
list-objects-filter-options: make parser void
list-objects-filter-options: clean up use of ALLOC_GROW
list-objects-filter-options: allow mult. --filter
strbuf: give URL-encoding API a char predicate fn
list-objects-filter-options: make filter_spec a string_list
list-objects-filter-options: move error check up
list-objects-filter: implement composite filters
list-objects-filter-options: always supply *errbuf
list-objects-filter: put omits set in filter struct
list-objects-filter: encapsulate filter components
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Teach the lazy clone machinery that there can be more than one
promisor remote and consult them in order when downloading missing
objects on demand.
* cc/multi-promisor:
Move core_partial_clone_filter_default to promisor-remote.c
Move repository_format_partial_clone to promisor-remote.c
Remove fetch-object.{c,h} in favor of promisor-remote.{c,h}
remote: add promisor and partial clone config to the doc
partial-clone: add multiple remotes in the doc
t0410: test fetching from many promisor remotes
builtin/fetch: remove unique promisor remote limitation
promisor-remote: parse remote.*.partialclonefilter
Use promisor_remote_get_direct() and has_promisor_remote()
promisor-remote: use repository_format_partial_clone
promisor-remote: add promisor_remote_reinit()
promisor-remote: implement promisor_remote_get_direct()
Add initial support for many promisor remotes
fetch-object: make functions return an error code
t0410: remove pipes after git commands
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A new "pre-merge-commit" hook has been introduced.
* js/pre-merge-commit-hook:
merge: --no-verify to bypass pre-merge-commit hook
git-merge: honor pre-merge-commit hook
merge: do no-verify like commit
t7503: verify proper hook execution
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xmalloc() used to have a mechanism to ditch memory and address
space resources as the last resort upon seeing an allocation
failure from the underlying malloc(), which made the code complex
and thread-unsafe with dubious benefit, as major memory resource
users already do limit their uses with various other mechanisms.
It has been simplified away.
* jk/drop-release-pack-memory:
packfile: drop release_pack_memory()
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"git rebase --rebase-merges" learned to drive different merge
strategies and pass strategy specific options to them.
* js/rebase-r-strategy:
t3427: accelerate this test by using fast-export and fast-import
rebase -r: do not (re-)generate root commits with `--root` *and* `--onto`
t3418: test `rebase -r` with merge strategies
t/lib-rebase: prepare for testing `git rebase --rebase-merges`
rebase -r: support merge strategies other than `recursive`
t3427: fix another incorrect assumption
t3427: accommodate for the `rebase --merge` backend having been replaced
t3427: fix erroneous assumption
t3427: condense the unnecessarily repetitive test cases into three
t3427: move the `filter-branch` invocation into the `setup` case
t3427: simplify the `setup` test case significantly
t3427: add a clarifying comment
rebase: fold git-rebase--common into the -p backend
sequencer: the `am` and `rebase--interactive` scripts are gone
.gitignore: there is no longer a built-in `git-rebase--interactive`
t3400: stop referring to the scripted rebase
Drop unused git-rebase--am.sh
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"git fetch" learned "--set-upstream" option to help those who first
clone from their private fork they intend to push to, add the true
upstream via "git remote add" and then "git fetch" from it.
* cb/fetch-set-upstream:
pull, fetch: add --set-upstream option
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Fix a mismerge that happened in 2.22 timeframe.
* en/checkout-mismerge-fix:
checkout: remove duplicate code
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A mechanism to affect the default setting for a (related) group of
configuration variables is introduced.
* ds/feature-macros:
repo-settings: create feature.experimental setting
repo-settings: create feature.manyFiles setting
repo-settings: parse core.untrackedCache
commit-graph: turn on commit-graph by default
t6501: use 'git gc' in quiet mode
repo-settings: consolidate some config settings
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When doing 'git rebase --autostash <upstream> <master>' with a dirty worktree
a 'HEAD is now at ...' message is emitted, which is pointless as it refers to
the old active branch which isn't actually moved.
This commit removes the 'HEAD is now at...' message.
Signed-off-by: Ben Wijen <ben@wijen.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Consider the following scenario:
git checkout not-the-master
work work work
git rebase --autostash upstream master
Here 'rebase --autostash <upstream> <branch>' incorrectly moves the
active branch (not-the-master) to master (before the rebase).
The expected behavior: (58794775:/git-rebase.sh:526)
AUTOSTASH=$(git stash create autostash)
git reset --hard
git checkout master
git rebase upstream
git stash apply $AUTOSTASH
The actual behavior: (6defce2b:/builtin/rebase.c:1062)
AUTOSTASH=$(git stash create autostash)
git reset --hard master
git checkout master
git rebase upstream
git stash apply $AUTOSTASH
This commit reinstates the 'legacy script' behavior as introduced with
58794775: rebase: implement --[no-]autostash and rebase.autostash
Signed-off-by: Ben Wijen <ben@wijen.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Once upon a time, the code to add an object to our packing list in
pack-objects all lived in a single function. It computed the position
within the hash table once, then used it to check if the object was
already present, and if not, to add it.
Later, in 2834bc27c1 (pack-objects: refactor the packing list,
2013-10-24), this was split into two functions: packlist_find() and
packlist_alloc(). We ended up with an "index_pos" variable that gets
passed through several functions to make it from one to the other.
The resulting code is rather confusing to follow. The "index_pos"
variable is sometimes undefined, if we don't yet have a hash table. This
works out in practice because in that case packlist_alloc() won't use it
at all, since it will have to create/grow the hash table. But it's hard
to verify that, and it does cause gcc 9.2.1's -Wmaybe-uninitialized to
complain when compiled with "-flto -O3" (rightfully, since we do pass
the uninitialized value as a function parameter, even if nobody ends up
using it).
All of this is to save computing the hash index again when we're
inserting into the hash table, which I found doesn't make a measurable
difference in the program runtime (which is not surprising, since we're
doing all kinds of other heavyweight things for each object).
Let's just drop this index_pos variable entirely, simplifying the code
(and pleasing the compiler).
We might be better still refactoring this custom hash table to use one
of our existing implementations (an oidmap, or a kh_oid_map). I stopped
short of that here, but this would be the likely first step towards that
anyway.
Reported-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The only caller of packlist_alloc() already has a "struct object_id",
and we immediately copy the hash they pass us into our own object_id.
Let's avoid the unnecessary round-trip to a raw sha1 pointer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We try to parse the "author" line out of a commit buffer. We handle the
case that split_ident_line() doesn't work, but we don't do any error
checking that we found an "author" line in the first place! This would
cause us to segfault on such a corrupt object.
Let's put in an explicit NULL check (we can just die(), which is what a
bogus split would do, too). As a bonus, this silences a warning when
compiling with gcc 9.2.1 using "-flto -O3", which claims that ident_len
may be uninitialized (it would only be if we had a NULL here).
Reported-by: Stephan Beyer <s-beyer@gmx.net>
Helped-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Avoid derefencing ->tagged without checking for NULL by using the
convenience wrapper for getting the ID of the tagged object. It die()s
when encountering a broken tag instead of segfaulting.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The first consumer of pattern-matching filenames was the
.gitignore feature. In that context, storing a list of patterns
as a 'struct exclude_list' makes sense. However, the
sparse-checkout feature then adopted these structures and methods,
but with the opposite meaning: these patterns match the files
that should be included!
It would be clearer to rename this entire library as a "pattern
matching" library, and the callers apply exclusion/inclusion
logic accordingly based on their needs.
This commit renames several methods defined in dir.h to make
more sense with the renamed 'struct exclude_list' to 'struct
pattern_list' and 'struct exclude' to 'struct path_pattern':
* last_exclude_matching() -> last_matching_pattern()
* parse_exclude() -> parse_path_pattern()
In addition, the word 'exclude' was replaced with 'pattern'
in the methods below:
* add_exclude_list()
* add_excludes_from_file_to_list()
* add_excludes_from_file()
* add_excludes_from_blob_to_list()
* add_exclude()
* clear_exclude_list()
A few methods with the word "exclude" remain. These will
be handled seperately. In particular, the method
"is_excluded()" is concretely about the .gitignore file
relative to a specific directory. This is the important
boundary between library and consumer: is_excluded() cares
about .gitignore, but is_excluded() calls
last_matching_pattern() to make that decision.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The first consumer of pattern-matching filenames was the
.gitignore feature. In that context, storing a list of patterns
as a 'struct exclude_list' makes sense. However, the
sparse-checkout feature then adopted these structures and methods,
but with the opposite meaning: these patterns match the files
that should be included!
It would be clearer to rename this entire library as a "pattern
matching" library, and the callers apply exclusion/inclusion
logic accordingly based on their needs.
This commit replaces 'EXCL_FLAG_' to 'PATTERN_FLAG_' in the
names of the flags used on 'struct path_pattern'.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The first consumer of pattern-matching filenames was the
.gitignore feature. In that context, storing a list of patterns
as a 'struct exclude_list' makes sense. However, the
sparse-checkout feature then adopted these structures and methods,
but with the opposite meaning: these patterns match the files
that should be included!
It would be clearer to rename this entire library as a "pattern
matching" library, and the callers apply exclusion/inclusion
logic accordingly based on their needs.
This commit renames 'struct exclude_list' to 'struct pattern_list'
and renames several variables called 'el' to 'pl'.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The first consumer of pattern-matching filenames was the
.gitignore feature. In that context, storing a list of patterns
as a list of 'struct exclude' items makes sense. However, the
sparse-checkout feature then adopted these structures and methods,
but with the opposite meaning: these patterns match the files
that should be included!
It would be clearer to rename this entire library as a "pattern
matching" library, and the callers apply exclusion/inclusion
logic accordingly based on their needs.
This commit renames 'struct exclude' to 'struct path_pattern'
and renames several variable names to match. 'struct pattern'
was already taken by attr.c, and this more completely describes
that the patterns are specific to file paths.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The commit-graph feature is now on by default, and is being
written during 'git gc' by default. Typically, Git only writes
a commit-graph when a 'git gc --auto' command passes the gc.auto
setting to actualy do work. This means that a commit-graph will
typically fall behind the commits that are being used every day.
To stay updated with the latest commits, add a step to 'git
fetch' to write a commit-graph after fetching new objects. The
fetch.writeCommitGraph config setting enables writing a split
commit-graph, so on average the cost of writing this file is
very small. Occasionally, the commit-graph chain will collapse
to a single level, and this could be slow for very large repos.
For additional use, adjust the default to be true when
feature.experimental is enabled.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Pushes with --all, or refspecs are disallowed when --mirror is given
to 'git push', or when 'remote.<name>.mirror' is set in the config of
the repository, because they can have surprising
effects. 800a4ab399 ("push: check for errors earlier", 2018-05-16)
refactored this code to do that check earlier, so we can explicitly
check for the presence of flags, instead of their sideeffects.
However when 'remote.<name>.mirror' is set in the config, the
TRANSPORT_PUSH_MIRROR flag would only be set after we calling
'do_push()', so the checks would miss it entirely.
This leads to surprises for users [*1*].
Fix this by making sure we set the flag (if appropriate) before
checking for compatibility of the various options.
*1*: https://twitter.com/FiloSottile/status/1163918701462249472
Reported-by: Filippo Valsorda <filippo@ml.filippo.io>
Helped-by: Saleem Rashid
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'git switch' command was created to separate half of the
behavior of 'git checkout'. It specifically has the mode to
do nothing with the index and working directory if the user
only specifies to create a new branch and change HEAD to that
branch. This is also the behavior most users expect from
'git checkout -b', but for historical reasons it also performs
an index update by scanning the working directory. This can be
slow for even moderately-sized repos.
A performance fix for 'git checkout -b' was introduced by
fa655d8411 (checkout: optimize "git checkout -b <new_branch>"
2018-08-16). That change includes details about the config
setting checkout.optimizeNewBranch when the sparse-checkout
feature is required. The way this change detected if this
behavior change is safe was through the skip_merge_working_tree()
method. This method was complex and needed to be updated
as new options were introduced.
This behavior was essentially reverted by 65f099b ("switch:
no worktree status unless real branch switch happens"
2019-03-29). Instead, two members of the checkout_opts struct
were used to distinguish between 'git checkout' and 'git switch':
* switch_branch_doing_nothing_is_ok
* only_merge_on_switching_branches
These settings have opposite values depending on if we start
in cmd_checkout or cmd_switch.
The message for 64f099b includes "Users of big repos are
encouraged to move to switch." Making this change while
'git switch' is still experimental is too aggressive.
Create a happy medium between these two options by making
'git checkout -b <branch>' behave just like 'git switch',
but only if we read exactly those arguments. This must
be done in cmd_checkout to avoid the arguments being
consumed by the option parsing logic.
This differs from the previous change by fa644d8 in that
the config option checkout.optimizeNewBranch remains
deleted. This means that 'git checkout -b' will ignore
the index merge even if we have a sparse-checkout file.
While this is a behavior change for 'git checkout -b',
it matches the behavior of 'git switch -c'.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Elijah Newren <newren@gmail.com>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A common scenario is if a user is working on a topic branch and they
wish to make some changes to intermediate commits or autosquash, they
would run something such as
git rebase -i --onto master... master
in order to preserve the merge base. This is useful when contributing a
patch series to the Git mailing list, one often starts on top of the
current 'master'. While developing the patches, 'master' is also
developed further and it is sometimes not the best idea to keep rebasing
on top of 'master', but to keep the base commit as-is.
In addition to this, a user wishing to test individual commits in a
topic branch without changing anything may run
git rebase -x ./test.sh master... master
Since rebasing onto the merge base of the branch and the upstream is
such a common case, introduce the --keep-base option as a shortcut.
This allows us to rewrite the above as
git rebase -i --keep-base master
and
git rebase -x ./test.sh --keep-base master
respectively.
Add tests to ensure --keep-base works correctly in the normal case and
fails when there are multiple merge bases, both in regular and
interactive mode. Also, test to make sure conflicting options cause
rebase to fail. While we're adding test cases, add a missing
set_fake_editor call to 'rebase -i --onto master...side'.
While we're documenting the --keep-base option, change an instance of
"merge-base" to "merge base", which is the consistent spelling.
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before, when we rebased with a --fork-point invocation where the
fork-point wasn't empty, we would be setting options.restrict_revision.
The fast-forward logic would automatically declare that the rebase was
not fast-forwardable if it was set. However, this was painting with a
very broad brush.
Refine the logic so that we can fast-forward in the case where the
restricted revision is equal to the merge base, since we stop rebasing
at the merge base anyway.
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before, when we had the following graph,
A---B---C (master)
\
D (side)
running 'git rebase --onto master... master side' would result in D
being always rebased, no matter what. However, the desired behavior is
that rebase should notice that this is fast-forwardable and do that
instead.
Add detection to `can_fast_forward` so that this case can be detected
and a fast-forward will be performed. First of all, rewrite the function
to use gotos which simplifies the logic. Next, since the
options.upstream &&
!oidcmp(&options.upstream->object.oid, &options.onto->object.oid)
conditions were removed in `cmd_rebase`, we reintroduce a substitute in
`can_fast_forward`. In particular, checking the merge bases of
`upstream` and `head` fixes a failing case in t3416.
The abbreviated graph for t3416 is as follows:
F---G topic
/
A---B---C---D---E master
and the failing command was
git rebase --onto master...topic F topic
Before, Git would see that there was one merge base (C), and the merge
and onto were the same so it would incorrectly return 1, indicating that
we could fast-forward. This would cause the rebased graph to be 'ABCFG'
when we were expecting 'ABCG'.
With the additional logic, we detect that upstream and head's merge base
is F. Since onto isn't F, it means we're not rebasing the full set of
commits from master..topic. Since we're excluding some commits, a
fast-forward cannot be performed and so we correctly return 0.
Add '-f' to test cases that failed as a result of this change because
they were not expecting a fast-forward so that a rebase is forced.
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before, can_fast_forward was written with an if-else statement. However,
in the future, we may be adding more termination cases which would lead
to deeply nested if statements.
Refactor to use a goto tower so that future cases can be easily
inserted.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Append the strbuf buffer only after detaching it. There is no practical
difference here, as the strbuf is not empty and no strbuf_ function is
called between storing the pointer to the still attached buffer and
calling strbuf_detach(), so that pointer is valid, but make sure to
follow the standard sequence anyway for consistency.
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Error message update/clarification.
* sg/worktree-remove-errormsg:
worktree remove: clarify error message on dirty worktree
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The code to write commit-graph over given commit object names has
been made a bit more robust.
* sg/commit-graph-validate:
commit-graph: error out on invalid commit oids in 'write --stdin-commits'
commit-graph: turn a group of write-related macro flags into an enum
t5318-commit-graph: use 'test_expect_code'
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"git checkout" and "git restore" to re-populate the index from a
tree-ish (typically HEAD) did not work correctly for a path that
was removed and then added again with the intent-to-add bit, when
the corresponding working tree file was empty. This has been
corrected.
* vn/restore-empty-ita-corner-case-fix:
restore: add test for deleted ita files
checkout.c: unstage empty deleted ita files
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Codepaths to walk tree objects have been audited for integer
overflows and hardened.
* jk/tree-walk-overflow:
tree-walk: harden make_traverse_path() length computations
tree-walk: add a strbuf wrapper for make_traverse_path()
tree-walk: accept a raw length for traverse_path_len()
tree-walk: use size_t consistently
tree-walk: drop oid from traverse_info
setup_traverse_info(): stop copying oid
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"git grep --recurse-submodules" that looks at the working tree
files looked at the contents in the index in submodules, instead of
files in the working tree.
* mt/grep-submodules-working-tree:
grep: fix worktree case in submodules
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Add the --set-upstream option to git pull/fetch
which lets the user set the upstream configuration
(branch.<current-branch-name>.merge and
branch.<current-branch-name>.remote) for the current branch.
A typical use-case is:
git clone http://example.com/my-public-fork
git remote add main http://example.com/project-main-repo
git pull --set-upstream main master
or, instead of the last line:
git fetch --set-upstream main master
git merge # or git rebase
This is mostly equivalent to cloning project-main-repo (which sets
upsteam) and then "git remote add" my-public-fork, but may feel more
natural for people using a hosting system which allows forking from
the web UI.
This functionality is analog to "git push --set-upstream".
Signed-off-by: Corentin BOMPARD <corentin.bompard@etu.univ-lyon1.fr>
Signed-off-by: Nathan BERBEZIER <nathan.berbezier@etu.univ-lyon1.fr>
Signed-off-by: Pablo CHABANNE <pablo.chabanne@etu.univ-lyon1.fr>
Signed-off-by: Matthieu Moy <git@matthieu-moy.fr>
Patch-edited-by: Matthieu Moy <git@matthieu-moy.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both commit a7256debd4b6 ("checkout.txt: note about losing staged
changes with --merge", 2019-03-19) from nd/checkout-m-doc-update and
commit 6eff409e8a76 ("checkout: prevent losing staged changes with
--merge", 2019-03-22) from nd/checkout-m were included in git.git
despite the fact that the latter was meant to be v2 of the former.
The merge of these two topics resulted in a redundant chunk of code;
remove it.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The core.untrackedCache config setting is slightly complicated,
so clarify its use and centralize its parsing into the repo
settings.
The default value is "keep" (returned as -1), which persists the
untracked cache if it exists.
If the value is set as "false" (returned as 0), then remove the
untracked cache if it exists.
If the value is set as "true" (returned as 1), then write the
untracked cache and persist it.
Instead of relying on magic values of -1, 0, and 1, split these
options into an enum. This allows the use of "-1" as a
default value. After parsing the config options, if the value is
unset we can initialize it to UNTRACKED_CACHE_KEEP.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are a few important config settings that are not loaded
during git_default_config. These are instead loaded on-demand.
Centralize these config options to a single scan, and store
all of the values in a repo_settings struct. The values for
each setting are initialized as negative to indicate "unset".
This centralization will be particularly important in a later
change to introduce "meta" config settings that change the
defaults for these config settings.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To avoid data loss, 'git worktree remove' refuses to delete a worktree
if it's dirty or contains untracked files. However, the error message
only mentions that the worktree "is dirty", even if the worktree in
question is in fact clean, but contains untracked files:
$ git worktree add test-worktree
Preparing worktree (new branch 'test-worktree')
HEAD is now at aa53e60 Initial
$ >test-worktree/untracked-file
$ git worktree remove test-worktree/
fatal: 'test-worktree/' is dirty, use --force to delete it
$ git -C test-worktree/ diff
$ git -C test-worktree/ diff --cached
$ # Huh? Where are those dirty files?!
Clarify this error message to say that the worktree "contains modified
or untracked files".
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Long ago, in 97bfeb34df (Release pack windows before reporting out of
memory., 2006-12-24), we taught xmalloc() and friends to try unmapping
pack windows when malloc() failed. It's unlikely that his helps a lot in
practice, and it has some downsides. First, the downsides:
1. It makes xmalloc() not thread-safe. We've worked around this in
pack-objects.c, which installs its own locking version of the
try_to_free_routine(). But other threaded code doesn't.
2. It makes the system as a whole harder to reason about. Functions
which allocate heap memory under the hood may have farther-reaching
effects than expected.
That might be worth the tradeoff if there's a benefit. But in practice,
it seems unlikely. We're generally dealing with mmap'd files, so the OS
is going to do a much better job at responding to memory pressure by
dropping individual pages (the exception is systems with NO_MMAP, but
even there the OS can probably respond just as well with swapping).
So the only thing we're really freeing is address space. On 64-bit
systems, we have plenty of that to go around. On 32-bit systems, it
could possibly help. But around the same time we made two other changes:
77ccc5bbd1 (Introduce new config option for mmap limit., 2006-12-23) and
60bb8b1453 (Fully activate the sliding window pack access., 2006-12-23).
Together that means that a 32-bit system should have no more than 256MB
total of packed-git mmaps at one time, split between a few 32MB windows.
It's unlikely we have any address space problems since then, but we
don't have any data since the features were all added at the same time.
Likewise, xmmap() will try to free memory. At first glance, it seems
like we'd need this (when we try to mmap a new window, we might need to
close an old one to save address space on a 32-bit system). But we're
saved again by core.packedGitLimit: if we're going to exceed our 256MB
limit, we'll close an existing window before we even call mmap().
So it seems unlikely that this feature is actually doing anything
useful. And while we don't have reports of it harming anything (probably
because it rarely if ever kicks in), it would be nice to simplify the
system overall. This patch drops the whole try_to_free system from
xmalloc(), as well as the manual pack memory release in xmmap().
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Analogous to commit, introduce a '--no-verify' option which bypasses the
pre-merge-commit hook. The shorthand '-n' is taken by '--no-stat'
already.
[js: * reworded commit message to reflect current state of --no-stat flag
and new hook name
* fixed flag documentation to reflect new hook name
* cleaned up trailing whitespace
* squashed test changes from the original series' patch 4/4
* modified tests to follow pattern from this series' patch 1/4
* added a test case for --no-verify with non-executable hook
* when testing that the merge hook did not run, make sure we
actually have a merge to perform (by resetting the "side" branch
to its original state).
]
Improved-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git-merge does not honor the pre-commit hook when doing automatic merge
commits, and for compatibility reasons this is going to stay.
Introduce a pre-merge-commit hook which is called for an automatic merge
commit just like pre-commit is called for a non-automatic merge commit
(or any other commit).
[js: * renamed hook from "pre-merge" to "pre-merge-commit"
* only discard the index if the hook is actually present
* expanded githooks documentation entry
* clarified that hook should write messages to stderr
* squashed test changes from the original series' patch 4/4
* modified tests to follow new pattern from this series' patch 1/4
* added a test case for non-executable merge hooks
* added a test case for failed merges
* when testing that the merge hook did not run, make sure we
actually have a merge to perform (by resetting the "side" branch
to its original state).
* reworded commit message
]
Improved-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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f8b863598c ("builtin/merge: honor commit-msg hook for merges", 2017-09-07)
introduced the no-verify flag to merge for bypassing the commit-msg
hook, though in a different way from the implementation in commit.c.
Change the implementation in merge.c to be the same as in commit.c so
that both do the same in the same way. This also changes the output of
"git merge --help" to be more clear that the hook return code is
respected by default.
[js: * reworded commit message
* squashed documentation changes from original series' patch 3/4
]
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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brian m. carlson
Junio C Hamano
Ben Wijen
Jeff King
René Scharfe
Derrick Stolee
Thomas Gummerer
Denton Liu
Corentin BOMPARD
Elijah Newren
SZEDER Gábor
Michael J Gruber
Michael J Gruber