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2024-03-28Merge branch 'jc/show-untracked-false'Junio C Hamano1-19/+38
The status.showUntrackedFiles configuration variable had a name that tempts users to set a Boolean value expressed in our usual "false", "off", and "0", but it only took "no". This has been corrected so "true" and its synonyms are taken as "normal", while "false" and its synonyms are taken as "no". * jc/show-untracked-false: status: allow --untracked=false and friends status: unify parsing of --untracked= and status.showUntrackedFiles
2024-03-28Merge branch 'eb/hash-transition'Junio C Hamano14-43/+104
Work to support a repository that work with both SHA-1 and SHA-256 hash algorithms has started. * eb/hash-transition: (30 commits) t1016-compatObjectFormat: add tests to verify the conversion between objects t1006: test oid compatibility with cat-file t1006: rename sha1 to oid test-lib: compute the compatibility hash so tests may use it builtin/ls-tree: let the oid determine the output algorithm object-file: handle compat objects in check_object_signature tree-walk: init_tree_desc take an oid to get the hash algorithm builtin/cat-file: let the oid determine the output algorithm rev-parse: add an --output-object-format parameter repository: implement extensions.compatObjectFormat object-file: update object_info_extended to reencode objects object-file-convert: convert commits that embed signed tags object-file-convert: convert commit objects when writing object-file-convert: don't leak when converting tag objects object-file-convert: convert tag objects when writing object-file-convert: add a function to convert trees between algorithms object: factor out parse_mode out of fast-import and tree-walk into in object.h cache: add a function to read an OID of a specific algorithm tag: sign both hashes commit: export add_header_signature to support handling signatures on tags ...
2024-03-25cherry-pick: add `--empty` for more robust redundant commit handlingBrian Lyles1-1/+36
As with git-rebase(1) and git-am(1), git-cherry-pick(1) can result in a commit being made redundant if the content from the picked commit is already present in the target history. However, git-cherry-pick(1) does not have the same options available that git-rebase(1) and git-am(1) have. There are three things that can be done with these redundant commits: drop them, keep them, or have the cherry-pick stop and wait for the user to take an action. git-rebase(1) has the `--empty` option added in commit e98c4269c8 (rebase (interactive-backend): fix handling of commits that become empty, 2020-02-15), which handles all three of these scenarios. Similarly, git-am(1) got its own `--empty` in 7c096b8d61 (am: support --empty=<option> to handle empty patches, 2021-12-09). git-cherry-pick(1), on the other hand, only supports two of the three possiblities: Keep the redundant commits via `--keep-redundant-commits`, or have the cherry-pick fail by not specifying that option. There is no way to automatically drop redundant commits. In order to bring git-cherry-pick(1) more in-line with git-rebase(1) and git-am(1), this commit adds an `--empty` option to git-cherry-pick(1). It has the same three options (keep, drop, and stop), and largely behaves the same. The notable difference is that for git-cherry-pick(1), the default will be `stop`, which maintains the current behavior when the option is not specified. Like the existing `--keep-redundant-commits`, `--empty=keep` will imply `--allow-empty`. The `--keep-redundant-commits` option will be documented as a deprecated synonym of `--empty=keep`, and will be supported for backwards compatibility for the time being. Signed-off-by: Brian Lyles <brianmlyles@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25cherry-pick: enforce `--keep-redundant-commits` incompatibilityBrian Lyles1-0/+1
When `--keep-redundant-commits` was added in b27cfb0d8d (git-cherry-pick: Add keep-redundant-commits option, 2012-04-20), it was not marked as incompatible with the various operations needed to continue or exit a cherry-pick (`--continue`, `--skip`, `--abort`, and `--quit`). Enforce this incompatibility via `verify_opt_compatible` like we do for the other various options. Signed-off-by: Brian Lyles <brianmlyles@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25rebase: update `--empty=ask` to `--empty=stop`Brian Lyles1-6/+10
When git-am(1) got its own `--empty` option in 7c096b8d61 (am: support --empty=<option> to handle empty patches, 2021-12-09), `stop` was used instead of `ask`. `stop` is a more accurate term for describing what really happens, and consistency is good. Update git-rebase(1) to also use `stop`, while keeping `ask` as a deprecated synonym. Update the tests to primarily use `stop`, but also ensure that `ask` is still allowed. In a future commit, we'll be adding a new `--empty` option for git-cherry-pick(1) as well, making the consistency even more relevant. Reported-by: Elijah Newren <newren@gmail.com> Signed-off-by: Brian Lyles <brianmlyles@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25Merge branch 'ja/doc-formatting-fix'Junio C Hamano1-1/+1
Documentation mark-up fix. * ja/doc-formatting-fix: doc: fix some placeholders formating doc: format alternatives in synopsis
2024-03-25Merge branch 'js/bugreport-no-suffix-fix'Junio C Hamano1-3/+7
"git bugreport --no-suffix" was not supported and instead segfaulted, which has been corrected. * js/bugreport-no-suffix-fix: bugreport.c: fix a crash in `git bugreport` with `--no-suffix` option
2024-03-25Merge branch 'rj/restore-plug-leaks'Junio C Hamano1-30/+21
Leaks from "git restore" have been plugged. * rj/restore-plug-leaks: checkout: plug some leaks in git-restore
2024-03-25cat-file: use strbuf_expand_bad_format()René Scharfe1-8/+8
Report unknown format elements and missing closing parentheses with consistent and translated messages by calling strbuf_expand_bad_format() at the very end of the combined if/else chain of expand_format() and expand_atom(). Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25factor out strbuf_expand_bad_format()René Scharfe2-18/+2
Extract a function for reporting placeholders that are not enclosed in a parenthesis or are unknown. This reduces the number of strings to translate and improves consistency across commands. Call it at the end of the if/else chain, after exhausting all accepted possibilities. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25builtin/gc: pack refs when using `git maintenance run --auto`Patrick Steinhardt1-1/+11
When running `git maintenance run --auto`, then the various subtasks will only run as needed. Thus, we for example end up only packing loose objects if we hit a certain threshold. Interestingly enough, the "pack-refs" task is actually _never_ executed when the auto-flag is set because it does not have a condition at all. As 41abfe15d9 (maintenance: add pack-refs task, 2021-02-09) mentions: The 'auto_condition' function pointer is left NULL for now. We could extend this in the future to have a condition check if pack-refs should be run during 'git maintenance run --auto'. It is not quite clear from that quote whether it is actually intended that the task doesn't run at all in this mode. Also, no test was added to verify this behaviour. Ultimately though, it feels quite surprising that `git maintenance run --auto --task=pack-refs` would quietly never do anything at all. In any case, now that we do have the logic in place to let ref backends decide whether or not to repack refs, it does make sense to wire it up accordingly. With the "reftable" backend we will thus now perform auto-compaction, which optimizes the refdb as needed. But for the "files" backend we now unconditionally pack refs as it does not yet know to handle the "auto" flag. Arguably, this can be seen as a bug fix given that previously the task never did anything at all. Eventually though we should amend the "files" backend to use some heuristics for auto compaction, as well. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25builtin/gc: forward git-gc(1)'s `--auto` flag when packing refsPatrick Steinhardt1-9/+12
Forward the `--auto` flag to git-pack-refs(1) when it has been invoked with this flag itself. This does not change anything for the "files" backend, which will continue to eagerly pack refs. But it does ensure that the "reftable" backend only compacts refs as required. This change does not impact git-maintenance(1) because this command will in fact never run the pack-refs task when run with `--auto`. This issue will be addressed in a subsequent commit. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25builtin/gc: move `struct maintenance_run_opts`Patrick Steinhardt1-27/+26
We're about to start using `struct maintenance_run_opts` in `maintenance_task_pack_refs()`. Move its definition up to prepare for this. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25builtin/pack-refs: introduce new "--auto" flagPatrick Steinhardt1-1/+2
Calling git-pack-refs(1) will unconditionally cause it to pack all requested refs regardless of the current state of the ref database. For example: - With the "files" backend we will end up rewriting the complete "packed-refs" file even if only a single ref would require compaction. - With the "reftable" backend we will end up always compacting all tables into a single table. This behaviour can be completely unnecessary depending on the backend and is thus wasteful. With the introduction of the `PACK_REFS_AUTO` flag in the preceding commit we can improve this and let the backends decide for themselves whether to pack refs in the first place. Expose this functionality via a new "--auto" flag in git-pack-refs(1), which mirrors the same flag in both git-gc(1) and git-maintenance(1). Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25builtin/pack-refs: release allocated memoryPatrick Steinhardt1-8/+15
Some of the command line options in `cmd_pack_refs()` require us to allocate memory. This memory is never released and thus leaking, but we paper over this leak by declaring the respective variables as `static` function-level variables, which is somewhat awkward. Refactor the code to release the allocated memory and drop the `static` declaration. While at it, remove the useless `flags` variable. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-25refs: remove `PACK_REFS_ALL` flagPatrick Steinhardt1-2/+3
The intent of the `PACK_REFS_ALL` flag is to ask the backend to compact all refs instead of only a subset of them. Thus, this flag gets passed down to `refs_pack_refs()` via `struct pack_refs_opts::flags`. But starting with 4fe42f326e (pack-refs: teach pack-refs --include option, 2023-05-12), the flag's semantics have changed. Instead of being handled by the respective backends, this flag is now getting handled by the callers of `refs_pack_refs()` which will add a single glob ("*") to the list of refs-to-be-packed. Thus, the flag serves no purpose to the ref backends anymore. Remove the flag and replace it with a local variable. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-22rebase: use child_process_clear() to cleanJeff King1-3/+3
In the run_am() function, we set up a child_process struct to run "git-am", allocating memory for its args and env strvecs. These are normally cleaned up when we call run_command(). But if we encounter certain errors, we exit the function early and try to clean up ourselves by clearing the am.args field. This leaks the "env" strvec. We should use child_process_clear() instead, which covers both. And more importantly, it future proofs us against the struct ever growing more allocated fields. These are unlikely errors to happen in practice, so they don't actually trigger the leak sanitizer in the tests. But we can add a new test which does exercise one of the paths (and fails SANITIZE=leak without this patch). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-19format-patch: return an allocated string from log_write_email_headers()Jeff King1-0/+1
When pretty-printing a commit in the email format, we have to fill in the "after subject" field of the pretty_print_context with any extra headers the user provided (e.g., from "--to" or "--cc" options) plus any special MIME headers. We return an out-pointer that sometimes points to a newly heap-allocated string and sometimes not. To avoid leaking, we store the allocated version in a buffer with static lifetime, which is ugly. Worse, as we extend the header feature, we'll end up having to repeat this ugly pattern. Instead, let's have our out-pointer pass ownership back to the caller, and duplicate the string when necessary. This does mean one extra allocation per commit when you use extra headers, but in the context of format-patch which is showing diffs, I don't think that's even measurable. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-19pretty: drop print_email_subject flagJeff King2-1/+1
With one exception, the print_email_subject flag is set if and only if the commit format is email based: - in make_cover_letter() we set it along with CMIT_FMT_EMAIL explicitly - in show_log(), we set it if cmit_fmt_is_mail() is true. That covers format-patch as well as "git log --format=email" (or mboxrd). The one exception is "rev-list --format=email", which somewhat nonsensically prints the author and date as email headers, but no subject, like: $ git rev-list --format=email HEAD commit 64fc4c2cdd4db2645eaabb47aa4bac820b03cdba From: Jeff King <peff@peff.net> Date: Tue, 19 Mar 2024 19:39:26 -0400 this is the subject this is the body It's doubtful that this is a useful format at all (the "commit" lines replace the "From" lines that would make it work as an actual mbox). But I think that printing the subject as a header (like this patch does) is the least surprising thing to do. So let's drop this field, making the code a little simpler and easier to reason about. Note that we do need to set the "rev" field of the pretty_print_context in rev-list, since that is used to check for subject_prefix, etc. It's not possible to set those fields via rev-list, so we'll always just print "Subject: ". But unless we pass in our rev_info, fmt_output_email_subject() would segfault trying to figure it out. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-19pretty: split oneline and email subject printingJeff King1-1/+1
The pp_title_line() function is used for two formats: the oneline format and the subject line of the email format. But most of the logic in the function does not make any sense for oneline; it is about special formatting of email headers. Lumping the two formats together made sense long ago in 4234a76167 (Extend --pretty=oneline to cover the first paragraph, 2007-06-11), when there was a lot of manual logic to paste lines together. But later, 88c44735ab (pretty: factor out format_subject(), 2008-12-27) pulled that logic into its own function. We can implement the oneline format by just calling that one function. This makes the intention of the code much more clear, as we know we only need to worry about those extra email options when dealing with actual email. While the intent here is cleanup, it is possible to trigger these cases in practice by running format-patch with an explicit --oneline option. But if you did, the results are basically nonsense. For example, with the preserve_subject flag: $ printf "%s\n" one two three | git commit --allow-empty -F - $ git format-patch -1 --stdout -k | grep ^Subject Subject: =?UTF-8?q?one=0Atwo=0Athree?= $ git format-patch -1 --stdout -k --oneline --no-signature 2af7fbe one two three Or with extra headers: $ git format-patch -1 --stdout --cc=me --oneline --no-signature 2af7fbe one two three Cc: me So I'd actually consider this to be an improvement, though you are probably crazy to use other formats with format-patch in the first place (arguably it should forbid non-email formats entirely, but that's a bigger change). As a bonus, it eliminates some pointless extra allocations for the oneline output. The email code, since it has to deal with wrapping, formats into an extra auxiliary buffer. The speedup is tiny, though like "rev-list --no-abbrev --format=oneline" seems to improve by a consistent 1-2% for me. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-19shortlog: stop setting pp.print_email_subjectJeff King1-1/+0
When shortlog processes a commit using its internal traversal, it may pretty-print the subject line for the summary view. When we do so, we set the "print_email_subject" flag in the pretty-print context. But this flag does nothing! Since we are using CMIT_FMT_USERFORMAT, we skip most of the usual formatting code entirely. This flag is there due to commit 6d167fd7cc (pretty: use fmt_output_email_subject(), 2017-03-01). But that just switched us away from setting an empty "subject" header field, which was similarly useless. That was added by dd2e794a21 (Refactor pretty_print_commit arguments into a struct, 2009-10-19). Before using the struct, we had to pass _something_ as the argument, so we passed the empty string (a NULL would have worked equally well). So this setting has never done anything, and we can drop the line. That shortens the code, but more importantly, makes it easier to reason about and refactor the other users of this flag. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-18Merge branch 'pw/rebase-i-ignore-cherry-pick-help-environment'Junio C Hamano1-11/+3
Code simplification by getting rid of code that sets an environment variable that is no longer used. * pw/rebase-i-ignore-cherry-pick-help-environment: rebase -i: stop setting GIT_CHERRY_PICK_HELP
2024-03-18builtin/am: allow disabling conflict advicePhilippe Blain1-5/+9
When 'git am' or 'git rebase --apply' encounter a conflict, they show a message instructing the user how to continue the operation. This message can't be disabled. Use ADVICE_MERGE_CONFLICT introduced in the previous commit to allow disabling it. Update the tests accordingly, as the advice output is now on stderr instead of stdout. In t4150, redirect stdout to 'out' and stderr to 'err', since this is less confusing. In t4254, as we are testing a specific failure mode of 'git am', simply disable the advice. Note that we are not testing that this advice is shown in 'git rebase' for the apply backend since 2ac0d6273f (rebase: change the default backend from "am" to "merge", 2020-02-15). Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-16doc: fix some placeholders formatingJean-Noël Avila1-1/+1
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr> Acked-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-16bugreport.c: fix a crash in `git bugreport` with `--no-suffix` optionJiamu Sun1-3/+7
`git bugreport` does not complain when `--no-suffix` is given, but it leads to a segmentation fault as the it is not prepared to see a NULL assigned to the option_suffix variable. Signed-off-by: Jiamu Sun <barroit@linux.com> Acked-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-15config: allow tweaking whitespace between value and commentJunio C Hamano1-6/+1
Extending the previous step, this allows the whitespace placed after the value before the "# comment message" to be tweaked by tweaking the preprocessing rule to: * If the given comment string begins with one or more whitespace characters followed by '#', it is passed intact. * If the given comment string begins with '#', a Space is prepended. * Otherwise, " # " (Space, '#', Space) is prefixed. * A string with LF in it cannot be used as a comment string. Unlike the previous step, which unconditionally added a space after the value before writing the "# comment string", because the above preprocessing already gives a whitespace before the '#', the resulting string is written immediately after copying the value. And the sanity checking rule becomes * comment string after the above massaging that comes into git_config_set_multivar_in_file_gently() must - begin with zero or more whitespace characters followed by '#'. - not have a LF in it. I personally think this is over-engineered, but since I thought things through anyway, here it is in the patch form. The logic to tweak end-user supplied comment string is encapsulated in a new helper function, git_config_prepare_comment_string(), so if new front-end callers would want to use the same massaging rules, it is easily reused. Unfortunately I do not think of a way to tweak the preprocessing rules further to optionally allow having no blank after the value, i.e. to produce [section] variable = value#comment (which is a valid way to say section.variable=value, by the way) without sacrificing the ergonomics for the more usual case, so this time I really stop here. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-15config: fix --comment formattingJunio C Hamano1-4/+11
When git adds comments itself (like "rebase -i" todo list and "commit -e" log message editor), it always gives a comment introducer "#" followed by a Space before the message, except for the recently introduced "git config --comment", where the users are forced to say " this is my comment" if they want to add their comment in this usual format; otherwise their comment string will end up without a space after the "#". Make it more ergonomic, while keeping it possible to also use this unusual style, by massaging the comment string at the UI layer with a set of simple rules: * If the given comment string begins with '#', it is passed intact. * Otherwise, "# " is prefixed. * A string with LF in it cannot be used as a comment string. Right now there is only one "front-end" that accepts end-user comment string and calls the underlying machinery to add or modify configuration file with comments, but to make sure that the future callers perform similar massaging as they see fit, add a sanity check logic in git_config_set_multivar_in_file_gently(), which is the single choke point in the codepaths that consumes the comment string. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-15Merge branch 'jc/xwrite-cleanup'Junio C Hamano3-23/+7
Uses of xwrite() helper have been audited and updated for better error checking and simpler code. * jc/xwrite-cleanup: repack: check error writing to pack-objects subprocess sideband: avoid short write(2) unpack: replace xwrite() loop with write_in_full()
2024-03-15Merge branch 'as/option-names-in-messages'Junio C Hamano2-2/+2
Error message updates. * as/option-names-in-messages: revision.c: trivial fix to message builtin/clone.c: trivial fix of message builtin/remote.c: trivial fix of error message transport-helper.c: trivial fix of error message
2024-03-15Merge branch 'kh/branch-ref-syntax-advice'Junio C Hamano1-2/+6
When git refuses to create a branch because the proposed branch name is not a valid refname, an advice message is given to refer the user to exact naming rules. * kh/branch-ref-syntax-advice: branch: advise about ref syntax rules advice: use double quotes for regular quoting advice: use backticks for verbatim advice: make all entries stylistically consistent t3200: improve test style
2024-03-15config: add --comment option to add a commentRalph Seichter4-12/+20
Introduce the ability to append comments to modifications made using git-config. Example usage: git config --comment "changed via script" \ --add safe.directory /home/alice/repo.git based on the proposed patch, the output produced is: [safe] directory = /home/alice/repo.git #changed via script Users need to be able to distinguish between config entries made using automation and entries made by a human. Automation can add comments containing a URL pointing to explanations for the change made, avoiding questions from users as to why their config file was changed by a third party. The implementation ensures that a # character is unconditionally prepended to the provided comment string, and that the comment text is appended as a suffix to the changed key-value-pair in the same line of text. Multi-line comments (i.e. comments containing linefeed) are rejected as errors, causing Git to exit without making changes. Comments are aimed at humans who inspect or change their Git config using a pager or editor. Comments are not meant to be read or displayed by git-config at a later time. Signed-off-by: Ralph Seichter <github@seichter.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-14Merge branch 'la/trailer-api'Junio C Hamano1-2/+99
Trailer API updates. Acked-by: Christian Couder <christian.couder@gmail.com> cf. <CAP8UFD1Zd+9q0z1JmfOf60S2vn5-sD3SafDvAJUzRFwHJKcb8A@mail.gmail.com> * la/trailer-api: format_trailers_from_commit(): indirectly call trailer_info_get() format_trailer_info(): move "fast path" to caller format_trailers(): use strbuf instead of FILE trailer_info_get(): reorder parameters trailer: move interpret_trailers() to interpret-trailers.c trailer: reorder format_trailers_from_commit() parameters trailer: rename functions to use 'trailer' shortlog: add test for de-duplicating folded trailers trailer: free trailer_info _after_ all related usage
2024-03-14Merge branch 'so/clean-dry-run-without-force'Junio C Hamano1-15/+5
The implementation in "git clean" that makes "-n" and "-i" ignore clean.requireForce has been simplified, together with the documentation. * so/clean-dry-run-without-force: clean: further clean-up of implementation around "--force" clean: improve -n and -f implementation and documentation
2024-03-14checkout: plug some leaks in git-restoreRubén Justo1-30/+21
In git-restore we need to free the pathspec and pathspec_from_file values from the struct checkout_opts. A simple fix could be to free them in cmd_restore, after the call to checkout_main returns, like we are doing [1][2] in the sibling function cmd_checkout. However, we can do even better. We have git-switch and git-restore, both of them spin-offs[3][4] of git-checkout. All three are implemented as thin wrappers around checkout_main. Considering this, it makes a lot of sense to do the cleanup closer to checkout_main. Move the cleanups, including the new_branch_info variable, to checkout_main. As a consequence, mark: t2070, t2071, t2072 and t6418 as leak-free. [1] 9081a421a6 (checkout: fix "branch info" memory leaks, 2021-11-16) [2] 7ce4088ab7 (parse-options: consistently allocate memory in fix_filename(), 2023-03-04) [3] d787d311db (checkout: split part of it to new command 'switch', 2019-03-29) [4] 46e91b663b (checkout: split part of it to new command 'restore', 2019-04-25) Signed-off-by: Rubén Justo <rjusto@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-14checkout: fix interaction between --conflict and --mergePhillip Wood1-3/+7
When using "git checkout" to recreate merge conflicts or merge uncommitted changes when switching branch "--conflict" sensibly implies "--merge". Unfortunately the way this is implemented means that "git checkout --conflict=diff3 --no-merge" implies "--merge" violating the usual last-one-wins rule. Fix this by only overriding the value of opts->merge if "--conflicts" comes after "--no-merge" or "-[-no]-merge" is not given on the command line. The behavior of "git checkout --merge --no-conflict" is unchanged and will still merge on the basis that the "-[-no]-conflict" options are primarily intended to affect the conflict style and so "--no-conflict" should cancel a previous "--conflict" but not override "--merge". Of the four new tests the second one tests the behavior change introduced by this commit, the other three check that this commit does not regress the existing behavior. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-14checkout: cleanup --conflict=<style> parsingPhillip Wood1-19/+32
Passing an invalid conflict style name such as "--conflict=bad" gives the error message error: unknown style 'bad' given for 'merge.conflictstyle' which is unfortunate as it talks about a config setting rather than the option given on the command line. This happens because the implementation calls git_xmerge_config() to set the conflict style using the value given on the command line. Use the newly added parse_conflict_style_name() instead and pass the value down the call chain to override the config setting. This also means we can avoid setting up a struct config_context required for calling git_xmerge_config(). The option is now parsed in a callback to avoid having to store the option name. This is a change in behavior as now git checkout --conflict=bad --conflict=diff3 will error out when parsing "--conflict=bad" whereas before this change it would succeed because it would only try to parse the value of the last "--conflict" option given on the command line. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-14merge-ll: introduce LL_MERGE_OPTIONS_INITPhillip Wood1-2/+1
Introduce a macro to initialize `struct ll_merge_options` in preparation for the next commit that will add a new member that needs to be initialized to a non-zero value. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-13status: allow --untracked=false and friendsJunio C Hamano1-2/+11
It is natural to expect that the "--untracked" option and the status.showuntrackedFiles configuration variable to take a Boolean value ("do you want me to show untracked files?"), but the current code takes nothing but "no" as "no, please do not show any". Allow the usual Boolean values to be given, and treat 'true' as "normal", and 'false' as "no". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-13status: unify parsing of --untracked= and status.showUntrackedFilesJunio C Hamano1-17/+27
There are two code paths that take a string and parse it to enum untracked_status_type. Introduce a helper function and use it. As these two places handle an error differently, add an additional invalid value to the enum, and have the caller of the helper handle the error condition, instead of dying or emitting error message from the helper. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-12prefer comment_line_str to comment_line_char for printingJeff King4-14/+14
As part of our transition to multi-byte comment characters, we should use the string variable rather than the historical character variable. All of the sites adjusted here are just swapping out "%c" for "%s" in format strings, or strbuf_addch() for strbuf_addstr(). The type system and printf-attribute give the compiler enough information to make sure our formats and variable changes all match (especially important for cases where the format string is defined far away from its use, like prepare_to_commit() in commit.c). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-12strbuf: accept a comment string for strbuf_add_commented_lines()Jeff King2-5/+5
As part of our transition to multi-byte comment characters, let's take a NUL-terminated string pointer for strbuf_add_commented_lines() rather than a single character. All of the callers have to be adjusted; most can just pass comment_line_str rather than comment_line_char. And now our "cheat" in strbuf_commented_addf() can go away, as we can take the full string from it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-12strbuf: accept a comment string for strbuf_commented_addf()Jeff King3-7/+7
As part of our transition to multi-byte comment characters, let's take a NUL-terminated string pointer for strbuf_commented_addf() rather than a single character. All of the callers have to be adjusted, but they can just pass comment_line_str rather than comment_line_char. Note that we rely on strbuf_add_commented_lines() under the hood, so we'll cheat a bit to squeeze our string into a single character (for now the two are equivalent, and we'll address this TODO in the next patch). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-12strbuf: accept a comment string for strbuf_stripspace()Jeff King8-9/+9
As part of our transition to multi-byte comment characters, let's take a NUL-terminated string pointer for strbuf_stripspace(), rather than a single character. We can continue to support its feature of ignoring comments by accepting a NULL pointer (as opposed to the current behavior of a NUL byte). All of the callers have to be adjusted, but they can all just pass comment_line_str (or NULL). Inside the function we detect comments by comparing the first byte of a line to the comment character. We'll adjust that to use starts_with(), which will match multiple bytes (though for now, of course, we still only allow a single byte, so it's academic). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-12environment: store comment_line_char as a stringJeff King1-2/+2
We'd like to eventually support multi-byte comment prefixes, but the comment_line_char variable is referenced in many spots, making the transition difficult. Let's start by storing the character in a NUL-terminated string. That will let us switch code over incrementally to the string format, and we can easily support the existing code with a macro wrapper (since we'll continue to allow only a single-byte prefix, this will behave identically). Once all references to the "char" variable have been converted, we can drop it and enable longer strings. We'll still have to touch all of the spots that create or set the variable in this patch, but there are only a few (reading the config, and the "auto" character selector). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-12commit: refactor base-case of adjust_comment_line_char()Jeff King1-2/+3
When core.commentChar is set to "auto", we check a set of candidate characters against the proposed buffer to see which if any can be used without ambiguity. But before we do that, we optimize for the common case that the default "#" is fine by just seeing if it is present in the buffer at all. The way we do this is a bit subtle, though: we assign the candidate character to comment_line_char preemptively, then check if it works, and return if it does. The subtle part is that sometimes setting comment_line_char is important (after we return, the important outcome is the fact that we have set the variable) and sometimes it is useless (if our optimization fails, we go on to do the more careful checks and eventually assign something else instead). To make it more clear what is happening (and to make further refactoring of comment_line_char easier), let's check our candidate character directly, and then assign as part of returning if it worked out. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-03-11Merge branch 'js/merge-base-with-missing-commit'Junio C Hamano11-42/+90
Make sure failure return from merge_bases_many() is properly caught. * js/merge-base-with-missing-commit: merge-ort/merge-recursive: do report errors in `merge_submodule()` merge-recursive: prepare for `merge_submodule()` to report errors commit-reach(repo_get_merge_bases_many_dirty): pass on errors commit-reach(repo_get_merge_bases_many): pass on "missing commits" errors commit-reach(get_octopus_merge_bases): pass on "missing commits" errors commit-reach(repo_get_merge_bases): pass on "missing commits" errors commit-reach(get_merge_bases_many_0): pass on "missing commits" errors commit-reach(merge_bases_many): pass on "missing commits" errors commit-reach(paint_down_to_common): start reporting errors commit-reach(paint_down_to_common): prepare for handling shallow commits commit-reach(repo_in_merge_bases_many): report missing commits commit-reach(repo_in_merge_bases_many): optionally expect missing commits commit-reach(paint_down_to_common): plug two memory leaks
2024-03-07Merge branch 'jk/upload-pack-bounded-resources'Junio C Hamano1-0/+2
Various parts of upload-pack has been updated to bound the resource consumption relative to the size of the repository to protect from abusive clients. * jk/upload-pack-bounded-resources: upload-pack: free tree buffers after parsing upload-pack: use PARSE_OBJECT_SKIP_HASH_CHECK in more places upload-pack: always turn off save_commit_buffer upload-pack: disallow object-info capability by default upload-pack: accept only a single packfile-uri line upload-pack: use a strmap for want-ref lines upload-pack: use oidset for deepen_not list upload-pack: switch deepen-not list to an oid_array upload-pack: drop separate v2 "haves" array
2024-03-07Merge branch 'ps/remote-helper-repo-initialization-fix'Junio C Hamano1-0/+46
A custom remote helper no longer cannot access the newly created repository during "git clone", which is a regression in Git 2.44. This has been corrected. * ps/remote-helper-repo-initialization-fix: builtin/clone: allow remote helpers to detect repo
2024-03-07Merge branch 'eg/add-uflags'Junio C Hamano1-1/+1
Code clean-up practice. * eg/add-uflags: add: use unsigned type for collection of bits
2024-03-07Merge branch 'jt/commit-redundant-scissors-fix'Junio C Hamano1-7/+5
"git commit -v --cleanup=scissors" used to add the scissors line twice in the log message buffer, which has been corrected. * jt/commit-redundant-scissors-fix: commit: unify logic to avoid multiple scissors lines when merging commit: avoid redundant scissor line with --cleanup=scissors -v