The multi-pack-index command supports working with arbitrary object
directories via the `--object-dir` flag. Though this has historically
worked in arbitrary repositories (including when the command itself was
run outside of a Git repository), this has been somewhat of an accident.
For example, running:
git multi-pack-index write --object-dir=/path/to/repo/objects
outside of a Git repository causes a BUG(). This is because the
top-level `cmd_multi_pack_index()` function stops parsing when it sees
"write", and then fills in the default object directory (the result of
calling `get_object_directory()`) before handing off to
`cmd_multi_pack_index_write()`. But there is no repository to
initialize, and so calling `get_object_directory()` results in a BUG()
(indicating that the current repository is not initialized).
Another case where this doesn't quite work as expected is when operating
in a SHA-256 repository. To see the failure, try this in your shell:
git init --object-format=sha256 repo
git -C repo commit --allow-empty base
git -C repo repack -d
git multi-pack-index --object-dir=$(pwd)/repo/.git/objects write
and observe that we cannot open the `.idx` file in "repo", because the
outermost process assumes that any repository that it works in also uses
the default value of `the_hash_algo` (at the time of writing, SHA-1).
There may be compelling reasons for trying to work around these bugs,
but working in arbitrary `--object-dir`'s is non-standard enough (and
likewise, these bugs prevalent enough) that I don't think any workflows
would be broken by abandoning this behavior.
Accordingly, restrict the `multi-pack-index` builtin to only work when
inside of a Git repository (i.e., its main utility becomes selecting
which alternate to operate in), which avoids both of the bugs above.
(Note that you can still trigger a bug when writing a MIDX in an
alternate which does not use the same object format as the repository
which it is an alternate of, but that is an unrelated bug to this one).
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In both protocol v0 and v2, upload-pack writes one pktline packet per
advertised ref to stdout. That means one or two write(2) syscalls per
ref. This is problematic if these writes become network sends with
high overhead.
This commit changes both send_ref callbacks to use buffered IO using
stdio.
To give an example of the impact: I set up a single-threaded loop that
calls ls-remote (with HTTP and protocol v2) on a local GitLab
instance, on a repository with 11K refs. When I switch from Git
v2.32.0 to this patch, I see a 40% reduction in CPU time for Git, and
65% for Gitaly (GitLab's Git RPC service).
So using buffered IO not only saves syscalls in upload-pack, it also
saves time in things that consume upload-pack's output.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jacob Vosmaer <jacob@gitlab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This adds three new functions to pkt-line.c: packet_fwrite,
packet_fwrite_fmt and packet_fflush. Besides writing a pktline flush
packet, packet_fflush also flushes the stdio buffer of the stream.
Helped-by: Patrick Steinhardt <ps@pks.im>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jacob Vosmaer <jacob@gitlab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Expand the section about namespaces in the documentation of
`transfer.hideRefs` to point out the subtle differences between
`upload-pack` and `receive-pack`.
ffcfb68176 (upload-pack.c: treat want-ref relative to namespace,
2021-07-30) taught `upload-pack` to reject `want-ref`s for hidden refs,
which is now mentioned. It is clarified that at no point the name of a
hidden ref is revealed, but the object id it points to may.
Signed-off-by: Kim Altintop <kim@eagain.st>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When 'upload-pack' runs within the context of a git namespace, treat any
'want-ref' lines the client sends as relative to that namespace.
Also check if the wanted ref is hidden via 'hideRefs'. If it is hidden,
respond with an error as if the ref didn't exist.
Helped-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Kim Altintop <kim@eagain.st>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Assembling a "raw" fetch command to be fed directly to "test-tool serve-v2"
is extracted into a test helper.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Kim Altintop <kim@eagain.st>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the free_mailmap_entry() code added in 0925ce4d49 (Add map_user()
and clear_mailmap() to mailmap, 2009-02-08) the intent was clearly to
clear the "me" structure, but while we freed parts of the
mailmap_entry structure, we didn't free the structure itself. The same
goes for the "mailmap_info" structure.
This brings the number of SANITIZE=leak failures in t4203-mailmap.sh
down from 50 to 49. Not really progress as far as the number of
failures is concerned, but as far as I can tell this fixes all leaks
in mailmap.c itself. There's still users of it such as builtin/log.c
that call read_mailmap() without a clear_mailmap(), but that's on
them.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"enum" keyword will be introduced in PHP 8.1.
https://wiki.php.net/rfc/enumerations
Signed-off-by: USAMI Kenta <tadsan@zonu.me>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 7f40759496 (fast-export: tighten anonymize_mem() interface to
handle only strings, 2020-06-23) changed the interface used in anonymizing
strings, but failed to update the size of annotated tag messages to match
the new anonymized string.
As a result, exporting tags having messages longer than 13 characters
would create output that couldn't be parsed by fast-import,
as the data length indicated was larger than the data output.
Reset the message size when anonymizing, and add a tag with a "long"
message to the test.
Signed-off-by: Tal Kelrich <hasturkun@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix a memory leak in a2ba162cda (object-info: support for retrieving
object info, 2021-04-20) which appears to have been based on a
misunderstanding of how the pkt-line.c API works. There is no need to
strdup() input to packet_writer_write(), it's just a printf()-like
format function.
This fixes a potentially large memory leak, since the number of OID
lines the "object-info" call can be arbitrarily large (or a small one
if the request is small).
This makes t5701-git-serve.sh pass again under SANITIZE=leak, as it
did before a2ba162cda.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Bruno Albuquerque <bga@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we fail to start a diff command inside a submodule, immediately
exit the routine rather than trying to finish the command and printing
a second message.
Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If you have ever initialized a submodule, open_submodule will open it.
If you then delete the submodule's worktree directory (but don't
remove it from .gitmodules), git diff --submodule=diff would error out
as it attempted to chdir into the now-deleted working tree directory.
This only matters if the submodules git dir is absorbed. If not, then
we no longer have anywhere to run the diff. But that case does not
trigger this error, because in that case, open_submodule fails, so we
don't resolve a left commit, so we exit early, which is the only thing
we could do.
If absorbed, then we can run the diff from the submodule's absorbed
git dir (.git/modules/sm2). In practice, that's a bit more
complicated, because `git diff` expects to be run from inside a
working directory, not a git dir. So it looks in the config for
core.worktree, and does chdir("../../../sm2"), which is the very dir
that we're trying to avoid visiting because it's been deleted. We
work around this by setting GIT_WORK_TREE (and GIT_DIR) to ".". It is
little weird to set GIT_WORK_TREE to something that is not a working
tree just to avoid an unnecessary chdir, but it works.
Signed-off-by: David Turner <dturner@twosigma.com
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Bring the "commit-graph" command in line with the error output and
general pattern in cmd_multi_pack_index().
Let's test for that output, and also cover the same potential bug as
was fixed in the multi-pack-index command in
88617d11f9 (multi-pack-index: fix potential segfault without
sub-command, 2021-07-19).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change the parse_options() invocation in the commit-graph code to
error on unknown leftover argv elements, in addition to the existing
and implicit erroring via parse_options() on unknown options.
We'd already error in cmd_commit_graph() on e.g.:
git commit-graph unknown verify
git commit-graph --unknown verify
But here we're calling parse_options() twice more for the "write" and
"verify" subcommands. We did not do the same checking for leftover
argv elements there. As a result we'd silently accept garbage in these
subcommands, let's not do that.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rather than guarding all of the !argc with an additional "if" arm
let's do an early goto to "usage". This also makes it clear that
"save_commit_buffer" is not needed in this case.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Refactor the "goto usage" pattern added in
cd57bc41bb (builtin/multi-pack-index.c: display usage on unrecognized
command, 2021-03-30) and 88617d11f9 (multi-pack-index: fix potential
segfault without sub-command, 2021-07-19) to maintain the same
brevity, but in a form that doesn't run afoul of the recommendation in
CodingGuidelines about braces:
When there are multiple arms to a conditional and some of them
require braces, enclose even a single line block in braces for
consistency[...]
Let's also change "argv == 0" to juts "!argv", per:
Do not explicitly compare an integral value with constant 0 or
'\0', or a pointer value with constant NULL[...]
I'm changing this because in a subsequent commit I'll make
builtin/commit-graph.c use the same pattern, having the two similarly
structured commands match aids readability.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make use of the parse_options_concat() so we don't need to copy/paste
common options like --object-dir.
This is inspired by a similar change to "checkout" in 2087182272
(checkout: split options[] array in three pieces, 2019-03-29), and the
same pattern in the multi-pack-index command, see
60ca94769c (builtin/multi-pack-index.c: split sub-commands,
2021-03-30).
A minor behavior change here is that now we're going to list both
--object-dir and --progress first, before we'd list --progress along
with other options.
Co-authored-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we don't handle the -h option here like most parse_options() users
we'll fall through and it'll do the right thing for us.
I think this code added in 4ce58ee38d (commit-graph: create
git-commit-graph builtin, 2018-04-02) was always redundant,
parse_options() did this at the time, and the commit-graph code never
used PARSE_OPT_NO_INTERNAL_HELP.
We don't need a test for this, it's tested by the t0012-help.sh test
added in d691551192 (t0012: test "-h" with builtins, 2017-05-30).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Share the usage message between these three variables by using a
macro. Before this new options needed to copy/paste the usage
information, see e.g. 809e0327f5 (builtin/commit-graph.c: introduce
'--max-new-filters=<n>', 2020-09-18).
See b25b727494 (builtin/multi-pack-index.c: define common usage with
a macro, 2021-03-30) for another use of this pattern (but on-list this
one came first).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Silently skipping commits when rebasing with --no-reapply-cherry-picks
(currently the default behavior) can cause user confusion. Issue
warnings when this happens, as well as advice on how to preserve the
skipped commits.
These warnings and advice are displayed only when using the (default)
"merge" rebase backend.
Update the git-rebase docs to mention the warnings and advice.
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The most significant of this batch is of course "merge -sort".
Thanks, Elijah and everybody who helped the topic.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current implementation of GIT_TEST_FAIL_PREREQS is broken in
that checking for the lack of a prerequisite would not work. Avoid
the use of "if ! test_have_prereq X" in a test script.
* bc/t5607-avoid-broken-test-fail-prereqs:
t5607: avoid using prerequisites to select algorithm
"git range-diff" code clean-up.
* jk/range-diff-fixes:
range-diff: use ssize_t for parsed "len" in read_patches()
range-diff: handle unterminated lines in read_patches()
range-diff: drop useless "offset" variable from read_patches()
"git apply" miscounted the bytes and failed to read to the end of
binary hunks.
* jk/apply-binary-hunk-parsing-fix:
apply: keep buffer/size pair in sync when parsing binary hunks
Remind developers that the userdiff patterns should be kept simple
and permissive, assuming that the contents they apply are always
syntactically correct.
* jc/userdiff-pattern-hint:
userdiff: comment on the builtin patterns
Use `ort` instead of `recursive` as the default merge strategy.
* en/ort-becomes-the-default:
Update docs for change of default merge backend
Change default merge backend from recursive to ort
Documentation updates.
* en/merge-strategy-docs:
Update error message and code comment
merge-strategies.txt: add coverage of the `ort` merge strategy
git-rebase.txt: correct out-of-date and misleading text about renames
merge-strategies.txt: fix simple capitalization error
merge-strategies.txt: avoid giving special preference to patience algorithm
merge-strategies.txt: do not imply using copy detection is desired
merge-strategies.txt: update wording for the resolve strategy
Documentation: edit awkward references to `git merge-recursive`
directory-rename-detection.txt: small updates due to merge-ort optimizations
git-rebase.txt: correct antiquated claims about --rebase-merges
"git pull" had various corner cases that were not well thought out
around its --rebase backend, e.g. "git pull --ff-only" did not stop
but went ahead and rebased when the history on other side is not a
descendant of our history. The series tries to fix them up.
* en/pull-conflicting-options:
pull: fix handling of multiple heads
pull: update docs & code for option compatibility with rebasing
pull: abort by default when fast-forwarding is not possible
pull: make --rebase and --no-rebase override pull.ff=only
pull: since --ff-only overrides, handle it first
pull: abort if --ff-only is given and fast-forwarding is impossible
t7601: add tests of interactions with multiple merge heads and config
t7601: test interaction of merge/rebase/fast-forward flags and options
Based on current experience, when running git clone --recurse-submodules,
developers do not expect other commands such as pull or checkout to run
recursively into active submodules. However, setting submodule.recurse=true
at this step could make for a simpler workflow by eliminating the need for
the --recurse-submodules option in subsequent commands. To collect more
data on developers' preference in regards to making submodule.recurse=true
a default config value in the future, deploy this feature under the opt in
submodule.stickyRecursiveClone flag.
Signed-off-by: Mahi Kolla <mkolla2@illinois.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If multiple independent patches are sent with send-email, even if the
"In-Reply-To" and "References" headers are not managed by --thread or
--in-reply-to, their values may be propagated from prior patches to
subsequent patches with no such headers defined.
To mitigate this and potential future issues, make sure all global
patch-specific variables are always either handled by
command-specific code (e.g. threading), or are reset to their default
values for every iteration.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Marvin Häuser <mhaeuser@posteo.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When fetching, Git will by default print a list of all updated refs in a
nicely formatted table. In order to come up with this table, Git needs
to iterate refs twice: first to determine the maximum column width, and
a second time to actually format these changed refs.
While this table will not be printed in case the user passes `--quiet`,
we still go out of our way and do all these steps. In fact, we even do
more work compared to not passing `--quiet`: without the flag, we will
skip all references in the column width computation which have not been
updated, but if it is set we will now compute widths for all refs.
Fix this issue by completely skipping both preparation of the format and
formatting data for display in case the user passes `--quiet`, improving
performance especially with many refs. The following benchmark shows a
nice speedup for a quiet mirror-fetch in a repository with 2.3M refs:
Benchmark #1: HEAD~: git-fetch
Time (mean ± σ): 26.929 s ± 0.145 s [User: 24.194 s, System: 4.656 s]
Range (min … max): 26.692 s … 27.068 s 5 runs
Benchmark #2: HEAD: git-fetch
Time (mean ± σ): 25.189 s ± 0.094 s [User: 22.556 s, System: 4.606 s]
Range (min … max): 25.070 s … 25.314 s 5 runs
Summary
'HEAD: git-fetch' ran
1.07 ± 0.01 times faster than 'HEAD~: git-fetch'
While at it, this patch also fixes `adjust_refcol_width()` such that it
skips unchanged refs in case the user passed `--quiet`, where verbosity
will be negative. While this function won't be called anymore if so,
this brings the comment in line with actual code. Furthermore, needless
`verbosity >= 0` checks are now removed in `store_updated_refs()`: we
never print to the `note` buffer anymore in case `verbosity < 0`, so we
won't end up in that code block anyway.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Call fspathcmp() instead of open-coding it. This shortens the code and
makes it less repetitive.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Every once in a while a test somehow manages to escape from its trash
directory and modifies the surrounding repository, whether because of
a bug in git itself, a bug in a test [1], or e.g. when trying to run
tests with a shell that is, in general, unable to run our tests [2].
Set GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY/.." as an additional
safety measure to protect the surrounding repository at least from
modifications by git commands executed in the tests (assuming that
handling of ceiling directories during repository discovery is not
broken, and, of course, it won't save us from regular shell commands,
e.g. 'cd .. && rm -f ...').
[1] e.g. https://public-inbox.org/git/20210423051255.GD2947267@szeder.dev
[2] $ git symbolic-ref HEAD
refs/heads/master
$ ksh ./t2011-checkout-invalid-head.sh
[... a lot of "not ok" ...]
$ git symbolic-ref HEAD
refs/heads/other
(In short: 'ksh' doesn't support the 'local' builtin command,
which is used by 'test_oid', causing it to return with error
whenever it's called, leaving ZERO_OID set to empty, so when the
test 'checkout main from invalid HEAD' runs 'echo $ZERO_OID
>.git/HEAD' it writes a corrupt (not invalid) HEAD, and subsequent
git commands don't recognize the repository in the trash directory
anymore, but operate on the surrounding repo.)
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix syntax and correct the format of printf in MyFirstObjectWalk.txt
Signed-off-by: Zoker <kaixuanguiqu@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Copy the 'index_state->dir_hash' back to the real istate after expanding
a sparse index.
A crash was observed in 'git status' during some hashmap lookups with
corrupted hashmap entries. During an index expansion, new cache-entries
are added to the 'index_state->name_hash' and the 'dir_hash' in a
temporary 'index_state' variable 'full'. However, only the 'name_hash'
hashmap from this temp variable was copied back into the real 'istate'
variable. The original copy of the 'dir_hash' was incorrectly
preserved. If the table in the 'full->dir_hash' hashmap were realloced,
the stale version (in 'istate') would be corrupted.
The test suite does not operate on index sizes sufficiently large to
trigger this reallocation, so they do not cover this behavior.
Increasing the test suite to cover such scale is fragile and likely
wasteful.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the original code from 08cdfb1337 (pack-objects --keep-unreachable,
2007-09-16), we add each object to the packing list with type
`obj->type`, where `obj` comes from `lookup_unknown_object()`. Unless we
had already looked up and parsed the object, this will be `OBJ_NONE`.
That's fine, since oe_set_type() sets the type_valid bit to '0', and we
determine the real type later on.
So the only thing we need from the object lookup is access to the
`flags` field so that we can mark that we've added the object with
`OBJECT_ADDED` to avoid adding it again (we can just pass `OBJ_NONE`
directly instead of grabbing it from the object).
But add_object_entry() already rejects duplicates! This has been the
behavior since 7a979d99ba (Thin pack - create packfile with missing
delta base., 2006-02-19), but 08cdfb1337 didn't take advantage of it.
Moreover, to do the OBJECT_ADDED check, we have to do a hash lookup in
`obj_hash`.
So we can drop the lookup_unknown_object() call completely, *and* the
OBJECT_ADDED flag, too, since the spot we're touching here is the only
location that checks it.
In the end, we perform the same number of hash lookups, but with the
added bonus that we don't waste memory allocating an OBJ_NONE object (if
we were traversing, we'd need it eventually, but the whole point of this
code path is not to traverse).
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This function is used to implement `pack-objects`'s `--keep-unreachable`
option, but can be simplified in a couple of ways:
- add_objects_in_unpacked_packs() iterates over all packs (and then
all packed objects) itself, but could use for_each_packed_object()
instead since the missing flags necessary were added in the previous
commit
- objects are added to an in_pack array which store (off_t, object)
tuples, and then sorted in offset order when we could iterate
objects in offset order.
There is a slight behavior change here: before we would have added
objects in sorted offset order among _all_ packs. Handing objects to
create_object_entry() in pack order for each pack (instead of
feeding objects from all packs simultaneously their offset relative
to different packs) is much more reasonable, if different than how
the code currently works.
- objects in a single pack are iterated in index order and searched
for in order to discover their offsets, which is much less efficient
than using the on-disk reverse index
Simplify the function by addressing each of the above and moving the
core of the loop into a callback function that we then pass to
for_each_packed_object() instead of open-coding the latter function
ourselves.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The next patch will reimplement a function that wants to iterate over
packed objects while ignoring packs which are marked as kept (either
in-core or on-disk).
Teach for_each_packed_object() to ignore all objects from those packs by
adding a new flag for each of the "kept" states that a pack can be in.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are no other API docs in bundle.h, but this is at least a
start. We'll add a parameter to this function in a subsequent commit,
but let's start by documenting it.
The "/**" comment (as opposed to "/*") signifies the start of API
documentation. See [1] and bdfdaa4978 (strbuf.h: integrate
api-strbuf.txt documentation, 2015-01-16) and 6afbbdda33 (strbuf.h:
unify documentation comments beginnings, 2015-01-16) for a discussion
of that convention.
1. https://lore.kernel.org/git/874kbeecfu.fsf@evledraar.gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git branch only allows deleting branches that point to valid commits.
Skip that check if --force is given, as the caller is indicating with
it that they know what they are doing and accept the consequences.
This allows deleting dangling branches, which previously had to be
reset to a valid start-point using --force first.
Reported-by: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Pass the struct object_id on instead of just its hash member.
This is simpler and avoids the need to guess the algorithm.
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Only one of the callers of rev_is_head() provides two hashes to compare.
Move that check there and convert it to struct object_id.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The word "encoding" can mean a lot of things (e.g., base64 or
quoted-printable encoding in emails, HTML entities, URL encoding, and so
on). The documentation for i18n.commitEncoding and i18n.logOutputEncoding
uses the phrase "character encoding" to make this more clear.
Let's use that phrase in other places to make it clear what kind of
encoding we are talking about. This patch covers the gui.encoding
option, as well as the --encoding option for git-log, etc (in this
latter case, I word-smithed the sentence a little at the same time).
That, coupled with the mention of iconv in the --encoding description,
should make this more clear.
The other spot I looked at is the working-tree-encoding section of
gitattributes(5). But it gives specific examples of encodings that I
think make the meaning pretty clear already.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the user asks for a pretty-printed commit to be converted (either
explicitly with --encoding=foo, or implicitly because the commit is
non-utf8 and we want to convert it), we pass it through iconv(). If that
fails, we fall back to showing the input verbatim, but don't tell the
user that the output may be bogus.
Let's add a warning to do so, along with a mention in the documentation
for --encoding. Two things to note about the implementation:
- we could produce the warning closer to the call to iconv() in
reencode_string_len(), which would let us relay the value of errno.
But this is not actually very helpful. reencode_string_len() does
not know we are operating on a commit, and indeed does not know that
the caller won't produce an error of its own. And the errno values
from iconv() are seldom helpful (iconv_open() only ever produces
EINVAL; perhaps EILSEQ from iconv() might be illuminating, but it
can also return EINVAL for incomplete sequences).
- if the reason for the failure is that the output charset is not
supported, then the user will see this warning for every commit we
try to display. That might be ugly and overwhelming, but on the
other hand it is making it clear that every one of them has not been
converted (and the likely outcome anyway is to re-try the command
with a supported output encoding).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The 'Filtering contents...' progress report from delayed checkout is
displayed even when checkout and clone are invoked with --quiet or
--no-progress. Furthermore, it is displayed unconditionally, without
first checking whether stdout is a tty. Let's fix these issues and also
add some regression tests for the two code paths that currently use
delayed checkout: unpack_trees.c:check_updates() and
builtin/checkout.c:checkout_worktree().
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
