"git checkout X" did not correctly fail when X is not a local
branch but could name more than one remote-tracking branches
(i.e. to be dwimmed as the starting point to create a corresponding
local branch), which has been corrected.
* am/checkout-file-and-ref-ref-ambiguity:
checkout: don't revert file on ambiguous tracking branches
parse_branchname_arg(): extract part as new function
The effort to move "git-add--interactive" to C continues.
* js/patch-mode-in-others-in-c:
commit --interactive: make it work with the built-in `add -i`
built-in add -p: implement the "worktree" patch modes
built-in add -p: implement the "checkout" patch modes
built-in stash: use the built-in `git add -p` if so configured
legacy stash -p: respect the add.interactive.usebuiltin setting
built-in add -p: implement the "stash" and "reset" patch modes
built-in add -p: prepare for patch modes other than "stage"
gpg.minTrustLevel configuration variable has been introduced to
tell various signature verification codepaths the required minimum
trust level.
* hi/gpg-mintrustlevel:
gpg-interface: add minTrustLevel as a configuration option
"git restore --staged" did not correctly update the cache-tree
structure, resulting in bogus trees to be written afterwards, which
has been corrected.
* nd/switch-and-restore:
restore: invalidate cache-tree when removing entries with --staged
"git commit" gives output similar to "git status" when there is
nothing to commit, but without honoring the advise.statusHints
configuration variable, which has been corrected.
* hw/commit-advise-while-rejecting:
commit: honor advice.statusHints when rejecting an empty commit
Previously, signature verification for merge and pull operations checked
if the key had a trust-level of either TRUST_NEVER or TRUST_UNDEFINED in
verify_merge_signature(). If that was the case, the process die()d.
The other code paths that did signature verification relied entirely on
the return code from check_commit_signature(). And signatures made with
a good key, irregardless of its trust level, was considered valid by
check_commit_signature().
This difference in behavior might induce users to erroneously assume
that the trust level of a key in their keyring is always considered by
Git, even for operations where it is not (e.g. during a verify-commit or
verify-tag).
The way it worked was by gpg-interface.c storing the result from the
key/signature status *and* the lowest-two trust levels in the `result`
member of the signature_check structure (the last of these status lines
that were encountered got written to `result`). These are documented in
GPG under the subsection `General status codes` and `Key related`,
respectively [1].
The GPG documentation says the following on the TRUST_ status codes [1]:
"""
These are several similar status codes:
- TRUST_UNDEFINED <error_token>
- TRUST_NEVER <error_token>
- TRUST_MARGINAL [0 [<validation_model>]]
- TRUST_FULLY [0 [<validation_model>]]
- TRUST_ULTIMATE [0 [<validation_model>]]
For good signatures one of these status lines are emitted to
indicate the validity of the key used to create the signature.
The error token values are currently only emitted by gpgsm.
"""
My interpretation is that the trust level is conceptionally different
from the validity of the key and/or signature. That seems to also have
been the assumption of the old code in check_signature() where a result
of 'G' (as in GOODSIG) and 'U' (as in TRUST_NEVER or TRUST_UNDEFINED)
were both considered a success.
The two cases where a result of 'U' had special meaning were in
verify_merge_signature() (where this caused git to die()) and in
format_commit_one() (where it affected the output of the %G? format
specifier).
I think it makes sense to refactor the processing of TRUST_ status lines
such that users can configure a minimum trust level that is enforced
globally, rather than have individual parts of git (e.g. merge) do it
themselves (except for a grace period with backward compatibility).
I also think it makes sense to not store the trust level in the same
struct member as the key/signature status. While the presence of a
TRUST_ status code does imply that the signature is good (see the first
paragraph in the included snippet above), as far as I can tell, the
order of the status lines from GPG isn't well-defined; thus it would
seem plausible that the trust level could be overwritten with the
key/signature status if they were stored in the same member of the
signature_check structure.
This patch introduces a new configuration option: gpg.minTrustLevel. It
consolidates trust-level verification to gpg-interface.c and adds a new
`trust_level` member to the signature_check structure.
Backward-compatibility is maintained by introducing a special case in
verify_merge_signature() such that if no user-configurable
gpg.minTrustLevel is set, then the old behavior of rejecting
TRUST_UNDEFINED and TRUST_NEVER is enforced. If, on the other hand,
gpg.minTrustLevel is set, then that value overrides the old behavior.
Similarly, the %G? format specifier will continue show 'U' for
signatures made with a key that has a trust level of TRUST_UNDEFINED or
TRUST_NEVER, even though the 'U' character no longer exist in the
`result` member of the signature_check structure. A new format
specifier, %GT, is also introduced for users that want to show all
possible trust levels for a signature.
Another approach would have been to simply drop the trust-level
requirement in verify_merge_signature(). This would also have made the
behavior consistent with other parts of git that perform signature
verification. However, requiring a minimum trust level for signing keys
does seem to have a real-world use-case. For example, the build system
used by the Qubes OS project currently parses the raw output from
verify-tag in order to assert a minimum trust level for keys used to
sign git tags [2].
[1] https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=blob;f=doc/doc/DETAILS;h=bd00006e933ac56719b1edd2478ecd79273eae72;hb=refs/heads/master
[2] 9674c1991d/scripts/verify-git-tag (L43)
Signed-off-by: Hans Jerry Illikainen <hji@dyntopia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This reverts commit 5d9324e0f4, reversing
changes made to c58ae96fc4.
The topic turns out to be too buggy for real use.
cf. <f2fe7437-8a48-3315-4d3f-8d51fe4bb8f1@gmail.com>
When "git restore --staged <path>" removes a path that's in the index,
it marks the entry with CE_REMOVE, but we don't do anything to
invalidate the cache-tree. In the non-staged case, we end up in
checkout_worktree(), which calls remove_marked_cache_entries(). That
actually drops the entries from the index, as well as invalidating the
cache-tree and untracked-cache.
But with --staged, we never call checkout_worktree(), and the CE_REMOVE
entries remain. Interestingly, they are dropped when we write out the
index, but that means the resulting index is inconsistent: its
cache-tree will not match the actual entries, and running "git commit"
immediately after will create the wrong tree.
We can solve this by calling remove_marked_cache_entries() ourselves
before writing out the index. Note that we can't just hoist it out of
checkout_worktree(); that function needs to iterate over the CE_REMOVE
entries (to drop their matching worktree files) before removing them.
One curiosity about the test: without this patch, it actually triggers a
BUG() when running git-restore:
BUG: cache-tree.c:810: new1 with flags 0x4420000 should not be in cache-tree
But in the original problem report, which used a similar recipe,
git-restore actually creates the bogus index (and the commit is created
with the wrong tree). I'm not sure why the test here behaves differently
than my out-of-suite reproduction, but what's here should catch either
symptom (and the fix corrects both cases).
Reported-by: Torsten Krah <krah.tm@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
For easier understanding, here are the existing good scenarios:
1) Have *no* file 'foo', *no* local branch 'foo' and a *single*
remote branch 'foo'
2) `git checkout foo` will create local branch foo, see [1]
and
1) Have *a* file 'foo', *no* local branch 'foo' and a *single*
remote branch 'foo'
2) `git checkout foo` will complain, see [3]
This patch prevents the following scenario:
1) Have *a* file 'foo', *no* local branch 'foo' and *multiple*
remote branches 'foo'
2) `git checkout foo` will successfully... revert contents of
file `foo`!
That is, adding another remote suddenly changes behavior significantly,
which is a surprise at best and could go unnoticed by user at worst.
Please see [3] which gives some real world complaints.
To my understanding, fix in [3] overlooked the case of multiple remotes,
and the whole behavior of falling back to reverting file was never
intended:
[1] introduces the unexpected behavior. Before, there was fallback
from not-a-ref to pathspec. This is reasonable fallback. After, there
is another fallback from ambiguous-remote to pathspec. I understand
that it was a copy&paste oversight.
[2] noticed the unexpected behavior but chose to semi-document it
instead of forbidding, because the goal of the patch series was
focused on something else.
[3] adds `die()` when there is ambiguity between branch and file. The
case of multiple tracking branches is seemingly overlooked.
The new behavior: if there is no local branch and multiple remote
candidates, just die() and don't try reverting file whether it
exists (prevents surprise) or not (improves error message).
[1] Commit 70c9ac2f ("DWIM "git checkout frotz" to "git checkout -b frotz origin/frotz"" 2009-10-18)
https://public-inbox.org/git/7vaazpxha4.fsf_-_@alter.siamese.dyndns.org/
[2] Commit ad8d5104 ("checkout: add advice for ambiguous "checkout <branch>"", 2018-06-05)
https://public-inbox.org/git/20180502105452.17583-1-avarab@gmail.com/
[3] Commit be4908f1 ("checkout: disambiguate dwim tracking branches and local files", 2018-11-13)
https://public-inbox.org/git/20181110120707.25846-1-pclouds@gmail.com/
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is done for the next commit to avoid crazy 7x tab code padding.
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The code to write split commit-graph file(s) upon fetching computed
bogus value for the parameter used in splitting the resulting
files, which has been corrected.
* ds/commit-graph-set-size-mult:
commit-graph: prefer default size_mult when given zero
"git sparse-checkout list" subcommand learned to give its output in
a more concise form when the "cone" mode is in effect.
* ds/sparse-list-in-cone-mode:
sparse-checkout: document interactions with submodules
sparse-checkout: list directories in cone mode
In 50f26bd ("fetch: add fetch.writeCommitGraph config setting",
2019-09-02), the fetch builtin added the capability to write a
commit-graph using the "--split" feature. This feature creates
multiple commit-graph files, and those can merge based on a set
of "split options" including a size multiple. The default size
multiple is 2, which intends to provide a log_2 N depth of the
commit-graph chain where N is the number of commits.
However, I noticed during dogfooding that my commit-graph chains
were becoming quite large when left only to builds by 'git fetch'.
It turns out that in split_graph_merge_strategy(), we default the
size_mult variable to 2 except we override it with the context's
split_opts if they exist. In builtin/fetch.c, we create such a
split_opts, but do not populate it with values.
This problem is due to two failures:
1. It is unclear that we can add the flag COMMIT_GRAPH_WRITE_SPLIT
with a NULL split_opts.
2. If we have a non-NULL split_opts, then we override the default
values even if a zero value is given.
Correct both of these issues. First, do not override size_mult when
the options provide a zero value. Second, stop creating a split_opts
in the fetch builtin.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git rebase --signoff" stopped working when the command was written
in C, which has been corrected.
* en/rebase-signoff-fix:
rebase: fix saving of --signoff state for am-based rebases
When core.sparseCheckoutCone is enabled, the 'git sparse-checkout set'
command takes a list of directories as input, then creates an ordered
list of sparse-checkout patterns such that those directories are
recursively included and all sibling entries along the parent directories
are also included. Listing the patterns is less user-friendly than the
directories themselves.
In cone mode, and as long as the patterns match the expected cone-mode
pattern types, change the output of 'git sparse-checkout list' to only
show the directories that created the patterns.
With this change, the following piped commands would not change the
working directory:
git sparse-checkout list | git sparse-checkout set --stdin
The only time this would not work is if core.sparseCheckoutCone is
true, but the sparse-checkout file contains patterns that do not
match the expected pattern types for cone mode.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The effort to move "git-add--interactive" to C continues.
* js/add-p-in-c:
built-in add -p: show helpful hint when nothing can be staged
built-in add -p: only show the applicable parts of the help text
built-in add -p: implement the 'q' ("quit") command
built-in add -p: implement the '/' ("search regex") command
built-in add -p: implement the 'g' ("goto") command
built-in add -p: implement hunk editing
strbuf: add a helper function to call the editor "on an strbuf"
built-in add -p: coalesce hunks after splitting them
built-in add -p: implement the hunk splitting feature
built-in add -p: show different prompts for mode changes and deletions
built-in app -p: allow selecting a mode change as a "hunk"
built-in add -p: handle deleted empty files
built-in add -p: support multi-file diffs
built-in add -p: offer a helpful error message when hunk navigation failed
built-in add -p: color the prompt and the help text
built-in add -p: adjust hunk headers as needed
built-in add -p: show colored hunks by default
built-in add -i: wire up the new C code for the `patch` command
built-in add -i: start implementing the `patch` functionality in C
Code cleanup.
* rs/ref-read-cleanup:
remote: pass NULL to read_ref_full() because object ID is not needed
refs: pass NULL to refs_read_ref_full() because object ID is not needed
Management of sparsely checked-out working tree has gained a
dedicated "sparse-checkout" command.
* ds/sparse-cone: (21 commits)
sparse-checkout: improve OS ls compatibility
sparse-checkout: respect core.ignoreCase in cone mode
sparse-checkout: check for dirty status
sparse-checkout: update working directory in-process for 'init'
sparse-checkout: cone mode should not interact with .gitignore
sparse-checkout: write using lockfile
sparse-checkout: use in-process update for disable subcommand
sparse-checkout: update working directory in-process
sparse-checkout: sanitize for nested folders
unpack-trees: add progress to clear_ce_flags()
unpack-trees: hash less in cone mode
sparse-checkout: init and set in cone mode
sparse-checkout: use hashmaps for cone patterns
sparse-checkout: add 'cone' mode
trace2: add region in clear_ce_flags
sparse-checkout: create 'disable' subcommand
sparse-checkout: add '--stdin' option to set subcommand
sparse-checkout: 'set' subcommand
clone: add --sparse mode
sparse-checkout: create 'init' subcommand
...
Redo "git name-rev" to avoid recursive calls.
* sg/name-rev-wo-recursion:
name-rev: cleanup name_ref()
name-rev: eliminate recursion in name_rev()
name-rev: use 'name->tip_name' instead of 'tip_name'
name-rev: drop name_rev()'s 'generation' and 'distance' parameters
name-rev: restructure creating/updating 'struct rev_name' instances
name-rev: restructure parsing commits and applying date cutoff
name-rev: pull out deref handling from the recursion
name-rev: extract creating/updating a 'struct name_rev' into a helper
t6120: add a test to cover inner conditions in 'git name-rev's name_rev()
name-rev: use sizeof(*ptr) instead of sizeof(type) in allocation
name-rev: avoid unnecessary cast in name_ref()
name-rev: use strbuf_strip_suffix() in get_rev_name()
t6120-describe: modernize the 'check_describe' helper
t6120-describe: correct test repo history graph in comment
"git format-patch" can take a set of configured format.notes values
to specify which notes refs to use in the log message part of the
output. The behaviour of this was not consistent with multiple
--notes command line options, which has been corrected.
* dl/format-patch-notes-config-fixup:
notes.h: fix typos in comment
notes: break set_display_notes() into smaller functions
config/format.txt: clarify behavior of multiple format.notes
format-patch: move git_config() before repo_init_revisions()
format-patch: use --notes behavior for format.notes
notes: extract logic into set_display_notes()
notes: create init_display_notes() helper
notes: rename to load_display_notes()
A few more commands learned the "--pathspec-from-file" command line
option.
* am/pathspec-f-f-checkout:
checkout, restore: support the --pathspec-from-file option
doc: restore: synchronize <pathspec> description
doc: checkout: synchronize <pathspec> description
doc: checkout: fix broken text reference
doc: checkout: remove duplicate synopsis
add: support the --pathspec-from-file option
cmd_add: prepare for next patch
An earlier series to teach "--pathspec-from-file" to "git commit"
forgot to make the option incompatible with "--all", which has been
corrected.
* am/pathspec-from-file:
commit: forbid --pathspec-from-file --all
The built-in `git add -i` machinery obviously has its `the_repository`
structure initialized at the point where `cmd_commit()` calls it, and
therefore does not look at the environment variable `GIT_INDEX_FILE`.
But when being called from `commit --interactive`, it has to, because
the index was already locked in that case, and we want to ask the
interactive add machinery to work on the `index.lock` file instead of
the `index` file.
Technically, we could teach `run_add_i()`, or for that matter
`run_add_p()`, to look specifically at that environment variable, but
the entire idea of passing in a parameter of type `struct repository *`
is to allow working on multiple repositories (and their index files)
independently.
So let's instead override the `index_file` field of that structure
temporarily.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a straight-forward port of 2f0896ec3a (restore: support
--patch, 2019-04-25) which added support for `git restore -p`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch teaches the built-in `git add -p` machinery all the tricks it
needs to know in order to act as the work horse for `git checkout -p`.
Apart from the minor changes (slightly reworded messages, different
`diff` and `apply --check` invocations), it requires a new function to
actually apply the changes, as `git checkout -p` is a bit special in
that respect: when the desired changes do not apply to the index, but
apply to the work tree, Git does not fail straight away, but asks the
user whether to apply the changes to the worktree at least.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The scripted version of `git stash` called directly into the Perl script
`git-add--interactive.perl`, and this was faithfully converted to C.
However, we have a much better way to do this now: call the internal API
directly, which will now incidentally also respect the
`add.interactive.useBuiltin` setting. Let's just do this.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As `git add` traditionally did not expose the `--patch=<mode>` modes via
command-line options, the scripted version of `git stash` had to call
`git add--interactive` directly.
But this prevents the built-in `add -p` from kicking in, as
`add--interactive` is the scripted version (which does not have a
"fall-back" to the built-in version).
So let's introduce support for internal switch for `git add` that the
scripted `git stash` can use to call the appropriate backend (scripted
or built-in, depending on `add.interactive.useBuiltin`).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `git stash` and `git reset` commands support a `--patch` option, and
both simply hand off to `git add -p` to perform that work. Let's teach
the built-in version of that command to be able to perform that work, too.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The Perl script backing `git add -p` is used not only for that command,
but also for `git stash -p`, `git reset -p` and `git checkout -p`.
In preparation for teaching the C version of `git add -p` to support
also the latter commands, let's abstract away what is "stage" specific
into a dedicated data structure describing the differences between the
patch modes.
Finally, please note that the Perl version tries to make sure that the
diffs are only generated for the modified files. This is not actually
necessary, as the calls to Git's diff machinery already perform that
work, and perform it well. This makes it unnecessary to port the
`FILTER` field of the `%patch_modes` struct, as well as the
`get_diff_reference()` function.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This was an error introduced in the conversion from shell in commit
21853626ea ("built-in rebase: call `git am` directly", 2019-01-18),
which was noticed by a random browsing of the code.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In ea9882bfc4 (commit: disable status hints when writing to
COMMIT_EDITMSG, 2013-09-12) the intent was to disable status hints
when writing to COMMIT_EDITMSG, because giving the hints in the "git
status" like output in the commit message template are too late to
be useful (they say things like "'git add' to stage", but that is
only possible after aborting the current "git commit" session).
But there is one case that the hints can be useful: When the current
attempt to commit is rejected because no change is recorded in the
index. The message is given and "git commit" errors out, so the
hints can immediately be followed by the user. Teach the codepath
to honor the configuration variable.
Signed-off-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
I forgot this in my previous patch `--pathspec-from-file` for
`git commit` [1]. When both `--pathspec-from-file` and `--all` were
specified, `--all` took precedence and `--pathspec-from-file` was
ignored. Before `--pathspec-from-file` was implemented, this case was
prevented by this check in `parse_and_validate_options()` :
die(_("paths '%s ...' with -a does not make sense"), argv[0]);
It is unfortunate that these two cases are disconnected. This came as
result of how the code was laid out before my patches, where `pathspec`
is parsed outside of `parse_and_validate_options()`. This branch is
already full of refactoring patches and I did not dare to go for another
one.
Fix by mirroring `die()` for `--pathspec-from-file` as well.
[1] Commit e440fc58 ("commit: support the --pathspec-from-file option" 2019-11-19)
Reported-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of using a pointer that points at a constant string,
just give name directly to the constant string; this way, we
do not have to allocate a pointer variable in addition to
the string we want to use.
Let's convert `need_bad_and_good_revision_warning` and
`need_bisect_start_warning` char pointers to char arrays.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com>
Signed-off-by: Miriam Rubio <mirucam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Code clean-up.
* dl/range-diff-with-notes:
range-diff: clear `other_arg` at end of function
range-diff: mark pointers as const
t3206: fix incorrect test name
"git rebase" did not work well when format.useAutoBase
configuration variable is set, which has been corrected.
* dl/rebase-with-autobase:
rebase: fix format.useAutoBase breakage
format-patch: teach --no-base
t4014: use test_config()
format-patch: fix indentation
t3400: demonstrate failure with format.useAutoBase
Reduce unnecessary reading of state variables back from the disk
during sequencer operation.
* ag/sequencer-todo-updates:
sequencer: directly call pick_commits() from complete_action()
rebase: fill `squash_onto' in get_replay_opts()
sequencer: move the code writing total_nr on the disk to a new function
sequencer: update `done_nr' when skipping commands in a todo list
sequencer: update `total_nr' when adding an item to a todo list
In the previous steps, we re-implemented the main loop of `git add -i`
in C, and most of the commands.
Notably, we left out the actual functionality of `patch`, as the
relevant code makes up more than half of `git-add--interactive.perl`,
and is actually pretty independent of the rest of the commands.
With this commit, we start to tackle that `patch` part. For better
separation of concerns, we keep the code in a separate file,
`add-patch.c`. The new code is still guarded behind the
`add.interactive.useBuiltin` config setting, and for the moment,
it can only be called via `git add -p`.
The actual functionality follows the original implementation of
5cde71d64a (git-add --interactive, 2006-12-10), but not too closely
(for example, we use string offsets rather than copying strings around,
and after seeing whether the `k` and `j` commands are applicable, in the
C version we remember which previous/next hunk was undecided, and use it
rather than looking again when the user asked to jump).
As a further deviation from that commit, We also use a comma instead of
a slash to separate the available commands in the prompt, as the current
version of the Perl script does this, and we also add a line about the
question mark ("print help") to the help text.
While it is tempting to use this conversion of `git add -p` as an excuse
to work on `apply_all_patches()` so that it does _not_ want to read a
file from `stdin` or from a file, but accepts, say, an `strbuf` instead,
we will refrain from this particular rabbit hole at this stage.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a user uses the sparse-checkout feature in cone mode, they
add patterns using "git sparse-checkout set <dir1> <dir2> ..."
or by using "--stdin" to provide the directories line-by-line over
stdin. This behaviour naturally looks a lot like the way a user
would type "git add <dir1> <dir2> ..."
If core.ignoreCase is enabled, then "git add" will match the input
using a case-insensitive match. Do the same for the sparse-checkout
feature.
Perform case-insensitive checks while updating the skip-worktree
bits during unpack_trees(). This is done by changing the hash
algorithm and hashmap comparison methods to optionally use case-
insensitive methods.
When this is enabled, there is a small performance cost in the
hashing algorithm. To tease out the worst possible case, the
following was run on a repo with a deep directory structure:
git ls-tree -d -r --name-only HEAD |
git sparse-checkout set --stdin
The 'set' command was timed with core.ignoreCase disabled or
enabled. For the repo with a deep history, the numbers were
core.ignoreCase=false: 62s
core.ignoreCase=true: 74s (+19.3%)
For reproducibility, the equivalent test on the Linux kernel
repository had these numbers:
core.ignoreCase=false: 3.1s
core.ignoreCase=true: 3.6s (+16%)
Now, this is not an entirely fair comparison, as most users
will define their sparse cone using more shallow directories,
and the performance improvement from eb42feca97 ("unpack-trees:
hash less in cone mode" 2019-11-21) can remove most of the
hash cost. For a more realistic test, drop the "-r" from the
ls-tree command to store only the first-level directories.
In that case, the Linux kernel repository takes 0.2-0.25s in
each case, and the deep repository takes one second, plus or
minus 0.05s, in each case.
Thus, we _can_ demonstrate a cost to this change, but it is
unlikely to matter to any reasonable sparse-checkout cone.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 8164c961e1 (format-patch: use --notes behavior for format.notes,
2019-12-09), we introduced set_display_notes() which was a monolithic
function with three mutually exclusive branches. Break the function up
into three small and simple functions that each are only responsible for
one task.
This family of functions accepts an `int *show_notes` instead of
returning a value suitable for assignment to `show_notes`. This is for
two reasons. First of all, this guarantees that the external
`show_notes` variable changes in lockstep with the
`struct display_notes_opt`. Second, this prompts future developers to be
careful about doing something meaningful with this value. In fact, a
NULL check is intentionally omitted because causing a segfault here
would tell the future developer that they are meant to use the value for
something meaningful.
One alternative was making the family of functions accept a
`struct rev_info *` instead of the `struct display_notes_opt *`, since
the former contains the `show_notes` field as well. This does not work
because we have to call git_config() before repo_init_revisions().
However, if we had a `struct rev_info`, we'd need to initialize it before
it gets assigned values from git_config(). As a result, we break the
circular dependency by having standalone `int show_notes` and
`struct display_notes_opt notes_opt` variables which temporarily hold
values from git_config() until the values are copied over to `rev`.
To implement this change, we need to get a pointer to
`rev_info::show_notes`. Unfortunately, this is not possible with
bitfields and only direct-assignment is possible. Change
`rev_info::show_notes` to a non-bitfield int so that we can get its
address.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
read_ref_full() wraps refs_read_ref_full(), which in turn wraps
refs_resolve_ref_unsafe(), which handles a NULL oid pointer of callers
not interested in the resolved object ID. Make use of that feature to
document that mv() is such a caller.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 5e82c3dd22 (bisect--helper: `bisect_reset` shell function in C,
2019-01-02), the `git bisect reset` subcommand was ported to C. When the
call to `git checkout` failed, an error message was reported to the
user.
However, this error message used the `strbuf` that had just been
released already. Let's switch that around: first use it, then release
it.
Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com>
Signed-off-by: Miriam Rubio <mirucam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Hide lower-level verify_signed-buffer() API as a pure helper to
implement the public check_signature() function, in order to
encourage new callers to use the correct and more strict
validation.
* hi/gpg-use-check-signature:
gpg-interface: prefer check_signature() for GPG verification
The interaction between "git clone --recurse-submodules" and
alternate object store was ill-designed. The documentation and
code have been taught to make more clear recommendations when the
users see failures.
* jt/clone-recursesub-ref-advise:
submodule--helper: advise on fatal alternate error
Doc: explain submodule.alternateErrorStrategy
A few commands learned to take the pathspec from the
standard input or a named file, instead of taking it as the command
line arguments.
* am/pathspec-from-file:
commit: support the --pathspec-from-file option
doc: commit: synchronize <pathspec> description
reset: support the `--pathspec-from-file` option
doc: reset: synchronize <pathspec> description
pathspec: add new function to parse file
parse-options.h: add new options `--pathspec-from-file`, `--pathspec-file-nul`
"git rebase -i" learned a few options that are known by "git
rebase" proper.
* ra/rebase-i-more-options:
rebase -i: finishing touches to --reset-author-date
rebase: add --reset-author-date
rebase -i: support --ignore-date
sequencer: rename amend_author to author_to_rename
rebase -i: support --committer-date-is-author-date
sequencer: allow callers of read_author_script() to ignore fields
rebase -i: add --ignore-whitespace flag
