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git/sequencer.h

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revert: Introduce --reset to remove sequencer state To explicitly remove the sequencer state for a fresh cherry-pick or revert invocation, introduce a new subcommand called "--reset" to remove the sequencer state. Take the opportunity to publicly expose the sequencer paths, and a generic function called "remove_sequencer_state" that various git programs can use to remove the sequencer state in a uniform manner; "git reset" uses it later in this series. Introducing this public API is also in line with our long-term goal of eventually factoring out functions from revert.c into a generic commit sequencer. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 12:39:11 +02:00
#ifndef SEQUENCER_H
#define SEQUENCER_H
sequencer: run 'prepare-commit-msg' hook Commit 356ee4659b ("sequencer: try to commit without forking 'git commit'", 2017-11-24) forgot to run the 'prepare-commit-msg' hook when creating the commit. Fix this by writing the commit message to a different file and running the hook. Using a different file means that if the commit is cancelled the original message file is unchanged. Also move the checks for an empty commit so the order matches 'git commit'. Reported-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Helped-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-24 13:34:22 +01:00
const char *git_path_commit_editmsg(void);
sequencer: use memoized sequencer directory path Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-14 15:17:12 +02:00
const char *git_path_seq_dir(void);
revert: Introduce --reset to remove sequencer state To explicitly remove the sequencer state for a fresh cherry-pick or revert invocation, introduce a new subcommand called "--reset" to remove the sequencer state. Take the opportunity to publicly expose the sequencer paths, and a generic function called "remove_sequencer_state" that various git programs can use to remove the sequencer state in a uniform manner; "git reset" uses it later in this series. Introducing this public API is also in line with our long-term goal of eventually factoring out functions from revert.c into a generic commit sequencer. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 12:39:11 +02:00
sequencer.c: teach append_signoff how to detect duplicate s-o-b Teach append_signoff how to detect a duplicate s-o-b in the commit footer. This is in preparation to unify the append_signoff implementations in log-tree.c and sequencer.c. Fixes test in t3511. Signed-off-by: Brandon Casey <bcasey@nvidia.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:17:35 +01:00
#define APPEND_SIGNOFF_DEDUP (1u << 0)
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
enum replay_action {
REPLAY_REVERT,
sequencer: support a new action: 'interactive rebase' This patch introduces a new action for the sequencer. It really does not do a whole lot of its own right now, but lays the ground work for patches to come. The intention, of course, is to finally make the sequencer the work horse of the interactive rebase (the original idea behind the "sequencer" concept). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-02 16:26:28 +01:00
REPLAY_PICK,
REPLAY_INTERACTIVE_REBASE
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
};
sequencer: improve config handling The previous config handling relied on global variables, called git_default_config() even when the key had already been handled by git_sequencer_config() and did not initialize the diff configuration variables. Improve this by: i) loading the default values for message cleanup and gpg signing of commits into struct replay_opts; ii) restructuring the code to return immediately once a key is handled; and iii) calling git_diff_basic_config(). Note that unfortunately it is not possible to return early if the key is handled by git_gpg_config() as it does not indicate to the caller if the key has been handled or not. The sequencer should probably have been calling git_diff_basic_config() before as it creates a patch when there are conflicts. The shell version uses 'diff-tree' to create the patch so calling git_diff_basic_config() should match that. Although 'git commit' calls git_diff_ui_config() I don't think the output of print_commit_summary() is affected by anything that is loaded by that as print_commit_summary() always turns on rename detection so would ignore the value in the user's configuration anyway. The other values loaded by git_diff_ui_config() are about the formatting of patches so are not relevant to print_commit_summary(). Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-13 12:46:21 +01:00
enum commit_msg_cleanup_mode {
COMMIT_MSG_CLEANUP_SPACE,
COMMIT_MSG_CLEANUP_NONE,
COMMIT_MSG_CLEANUP_SCISSORS,
COMMIT_MSG_CLEANUP_ALL
};
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
struct replay_opts {
enum replay_action action;
/* Boolean options */
int edit;
int record_origin;
int no_commit;
int signoff;
int allow_ff;
int allow_rerere_auto;
git-cherry-pick: add allow-empty option git cherry-pick fails when picking a non-ff commit that is empty. The advice given with the failure is that a git-commit --allow-empty should be issued to explicitly add the empty commit during the cherry pick. This option allows a user to specify before hand that they want to keep the empty commit. This eliminates the need to issue both a cherry pick and a commit operation. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-11 22:21:53 +02:00
int allow_empty;
cherry-pick: add --allow-empty-message option Scripts such as "git rebase -i" cannot currently cherry-pick commits which have an empty commit message, as git cherry-pick calls git commit without the --allow-empty-message option. Add an --allow-empty-message option to git cherry-pick which is passed through to git commit, so this behaviour can be overridden. Signed-off-by: Chris Webb <chris@arachsys.com> Reviewed-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-02 12:38:51 +02:00
int allow_empty_message;
git-cherry-pick: Add keep-redundant-commits option The git-cherry-pick --allow-empty command by default only preserves empty commits that were originally empty, i.e only those commits for which <commit>^{tree} and <commit>^^{tree} are equal. By default commits which are non-empty, but were made empty by the inclusion of a prior commit on the current history are filtered out. This option allows us to override that behavior and include redundant commits as empty commits in the change history. Note that this patch changes the default behavior of git cherry-pick slightly. Prior to this patch all commits in a cherry-pick sequence were applied and git commit was run. The implication here was that, if a commit was redundant, and the commit did not trigger the fast forward logic, the git commit operation, and therefore the git cherry-pick operation would fail, displaying the cherry pick advice (i.e. run git commit --allow-empty). With this patch however, such redundant commits are automatically skipped without stopping, unless --keep-redundant-commits is specified, in which case, they are automatically applied as empty commits. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-20 16:36:15 +02:00
int keep_redundant_commits;
sequencer (rebase -i): learn about the 'verbose' mode When calling `git rebase -i -v`, the user wants to see some statistics after the commits were rebased. Let's show some. The strbuf we use to perform that task will be used for other things in subsequent commits, hence it is declared and initialized in a wider scope than strictly needed here. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-02 16:26:53 +01:00
int verbose;
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
int mainline;
sequencer: plug memory leaks for the option values The sequencer is our attempt to lib-ify cherry-pick. Yet it behaves like a one-shot command when it reads its configuration: memory is allocated and released only when the command exits. This is kind of okay for git-cherry-pick, which *is* a one-shot command. All the work to make the sequencer its work horse was done to allow using the functionality as a library function, though, including proper clean-up after use. To remedy that, take custody of the option values in question, allocating and duping literal constants as needed and freeing them at end. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-21 14:24:13 +02:00
char *gpg_sign;
sequencer: improve config handling The previous config handling relied on global variables, called git_default_config() even when the key had already been handled by git_sequencer_config() and did not initialize the diff configuration variables. Improve this by: i) loading the default values for message cleanup and gpg signing of commits into struct replay_opts; ii) restructuring the code to return immediately once a key is handled; and iii) calling git_diff_basic_config(). Note that unfortunately it is not possible to return early if the key is handled by git_gpg_config() as it does not indicate to the caller if the key has been handled or not. The sequencer should probably have been calling git_diff_basic_config() before as it creates a patch when there are conflicts. The shell version uses 'diff-tree' to create the patch so calling git_diff_basic_config() should match that. Although 'git commit' calls git_diff_ui_config() I don't think the output of print_commit_summary() is affected by anything that is loaded by that as print_commit_summary() always turns on rename detection so would ignore the value in the user's configuration anyway. The other values loaded by git_diff_ui_config() are about the formatting of patches so are not relevant to print_commit_summary(). Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-13 12:46:21 +01:00
enum commit_msg_cleanup_mode default_msg_cleanup;
cherry-pick, revert: add the --gpg-sign option Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-24 01:50:58 +01:00
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
/* Merge strategy */
sequencer: plug memory leaks for the option values The sequencer is our attempt to lib-ify cherry-pick. Yet it behaves like a one-shot command when it reads its configuration: memory is allocated and released only when the command exits. This is kind of okay for git-cherry-pick, which *is* a one-shot command. All the work to make the sequencer its work horse was done to allow using the functionality as a library function, though, including proper clean-up after use. To remedy that, take custody of the option values in question, allocating and duping literal constants as needed and freeing them at end. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-21 14:24:13 +02:00
char *strategy;
char **xopts;
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
size_t xopts_nr, xopts_alloc;
rebase -i: Handle "combination of <n> commits" with GETTEXT_POISON We previously relied on the localized versions of # This is a combination of <N> commits (which we write into the commit messages during fixup/squash chains) to contain <N> encoded in ASCII. This is not true in general, and certainly not true when compiled with GETTEXT_POISON=TryToKillMe, as demonstrated by the regression test we just introduced in t3418. So let's decouple keeping track of the count from the (localized) commit messages by introducing a new file called 'current-fixups' that keeps track of the current fixup/squash chain. This file contains a bit more than just the count (it contains a list of "fixup <commit>"/"squash <commit>" lines). This is done on purpose, as it will come in handy for a fix for the bug where `git rebase --skip` on a final fixup/squash will leave the commit message in limbo. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-27 22:48:21 +02:00
/* Used by fixup/squash */
struct strbuf current_fixups;
int current_fixup_count;
sequencer: learn about the special "fake root commit" handling When an interactive rebase wants to recreate a root commit, it - first creates a new, empty root commit, - checks it out, - converts the next `pick` command so that it amends the empty root commit Introduce support in the sequencer to handle such an empty root commit, by looking for the file <GIT_DIR>/rebase-merge/squash-onto; if it exists and contains a commit name, the sequencer will compare the HEAD to said root commit, and if identical, a new root commit will be created. While converting scripted code into proper, portable C, we also do away with the old "amend with an empty commit message, then cherry-pick without committing, then amend again" dance and replace it with code that uses the internal API properly to do exactly what we want: create a new root commit. To keep the implementation simple, we always spawn `git commit` to create new root commits. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-04 01:01:17 +02:00
/* placeholder commit for -i --root */
struct object_id squash_onto;
int have_squash_onto;
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
/* Only used by REPLAY_NONE */
struct rev_info *revs;
};
rebase -i: Handle "combination of <n> commits" with GETTEXT_POISON We previously relied on the localized versions of # This is a combination of <N> commits (which we write into the commit messages during fixup/squash chains) to contain <N> encoded in ASCII. This is not true in general, and certainly not true when compiled with GETTEXT_POISON=TryToKillMe, as demonstrated by the regression test we just introduced in t3418. So let's decouple keeping track of the count from the (localized) commit messages by introducing a new file called 'current-fixups' that keeps track of the current fixup/squash chain. This file contains a bit more than just the count (it contains a list of "fixup <commit>"/"squash <commit>" lines). This is done on purpose, as it will come in handy for a fix for the bug where `git rebase --skip` on a final fixup/squash will leave the commit message in limbo. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-27 22:48:21 +02:00
#define REPLAY_OPTS_INIT { .action = -1, .current_fixups = STRBUF_INIT }
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
sequencer: improve config handling The previous config handling relied on global variables, called git_default_config() even when the key had already been handled by git_sequencer_config() and did not initialize the diff configuration variables. Improve this by: i) loading the default values for message cleanup and gpg signing of commits into struct replay_opts; ii) restructuring the code to return immediately once a key is handled; and iii) calling git_diff_basic_config(). Note that unfortunately it is not possible to return early if the key is handled by git_gpg_config() as it does not indicate to the caller if the key has been handled or not. The sequencer should probably have been calling git_diff_basic_config() before as it creates a patch when there are conflicts. The shell version uses 'diff-tree' to create the patch so calling git_diff_basic_config() should match that. Although 'git commit' calls git_diff_ui_config() I don't think the output of print_commit_summary() is affected by anything that is loaded by that as print_commit_summary() always turns on rename detection so would ignore the value in the user's configuration anyway. The other values loaded by git_diff_ui_config() are about the formatting of patches so are not relevant to print_commit_summary(). Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-13 12:46:21 +01:00
/* Call this to setup defaults before parsing command line options */
void sequencer_init_config(struct replay_opts *opts);
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
int sequencer_pick_revisions(struct replay_opts *opts);
sequencer: get rid of the subcommand field The subcommands are used exactly once, at the very beginning of sequencer_pick_revisions(), to determine what to do. This is an unnecessary level of indirection: we can simply call the correct function to begin with. So let's do that. While at it, ensure that the subcommands return an error code so that they do not have to die() all over the place (bad practice for library functions...). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-21 14:24:55 +02:00
int sequencer_continue(struct replay_opts *opts);
int sequencer_rollback(struct replay_opts *opts);
int sequencer_remove_state(struct replay_opts *opts);
sequencer: factor code out of revert builtin Expose the cherry-picking machinery through a public sequencer_pick_revisions() (renamed from pick_revisions() in builtin/revert.c), so that cherry-picking and reverting are special cases of a general sequencer operation. The cherry-pick builtin is now a thin wrapper that does command-line argument parsing before calling into sequencer_pick_revisions(). In the future, we can write a new "foo" builtin that calls into the sequencer like: memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_FOO; opts.revisions = xmalloc(sizeof(*opts.revs)); parse_args_populate_opts(argc, argv, &opts); init_revisions(opts.revs); sequencer_pick_revisions(&opts); This patch does not intend to make any functional changes. Check with: $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]' Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 19:15:57 +01:00
rebase -i: update functions to use a flags parameter Update functions used in the rebase--helper so that they take a generic 'flags' parameter instead of a growing list of options. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05 18:52:32 +01:00
#define TODO_LIST_KEEP_EMPTY (1U << 0)
#define TODO_LIST_SHORTEN_IDS (1U << 1)
rebase -i: learn to abbreviate command names `git rebase -i` already know how to interpret single-letter command names. Teach it to generate the todo list with these same abbreviated names. Based-on-patch-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05 18:52:34 +01:00
#define TODO_LIST_ABBREVIATE_CMDS (1U << 2)
rebase-helper --make-script: introduce a flag to rebase merges The sequencer just learned new commands intended to recreate branch structure (similar in spirit to --preserve-merges, but with a substantially less-broken design). Let's allow the rebase--helper to generate todo lists making use of these commands, triggered by the new --rebase-merges option. For a commit topology like this (where the HEAD points to C): - A - B - C \ / D the generated todo list would look like this: # branch D pick 0123 A label branch-point pick 1234 D label D reset branch-point pick 2345 B merge -C 3456 D # C To keep things simple, we first only implement support for merge commits with exactly two parents, leaving support for octopus merges to a later patch series. All merge-rebasing todo lists start with a hard-coded `label onto` line. This makes it convenient to refer later on to the revision onto which everything is rebased, e.g. as starting point for branches other than the very first one. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-25 14:29:03 +02:00
#define TODO_LIST_REBASE_MERGES (1U << 3)
rebase -i: introduce --rebase-merges=[no-]rebase-cousins When running `git rebase --rebase-merges` non-interactively with an ancestor of HEAD as <upstream> (or leaving the todo list unmodified), we would ideally recreate the exact same commits as before the rebase. However, if there are commits in the commit range <upstream>.. that do not have <upstream> as direct ancestor (i.e. if `git log <upstream>..` would show commits that are omitted by `git log --ancestry-path <upstream>..`), this is currently not the case: we would turn them into commits that have <upstream> as direct ancestor. Let's illustrate that with a diagram: C / \ A - B - E - F \ / D Currently, after running `git rebase -i --rebase-merges B`, the new branch structure would be (pay particular attention to the commit `D`): --- C' -- / \ A - B ------ E' - F' \ / D' This is not really preserving the branch topology from before! The reason is that the commit `D` does not have `B` as ancestor, and therefore it gets rebased onto `B`. This is unintuitive behavior. Even worse, when recreating branch structure, most use cases would appear to want cousins *not* to be rebased onto the new base commit. For example, Git for Windows (the heaviest user of the Git garden shears, which served as the blueprint for --rebase-merges) frequently merges branches from `next` early, and these branches certainly do *not* want to be rebased. In the example above, the desired outcome would look like this: --- C' -- / \ A - B ------ E' - F' \ / -- D' -- Let's introduce the term "cousins" for such commits ("D" in the example), and let's not rebase them by default. For hypothetical use cases where cousins *do* need to be rebased, `git rebase --rebase=merges=rebase-cousins` needs to be used. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-25 14:29:40 +02:00
/*
* When rebasing merges, commits that do have the base commit as ancestor
* ("cousins") are *not* rebased onto the new base by default. If those
* commits should be rebased onto the new base, this flag needs to be passed.
*/
#define TODO_LIST_REBASE_COUSINS (1U << 4)
rebase -i: update functions to use a flags parameter Update functions used in the rebase--helper so that they take a generic 'flags' parameter instead of a growing list of options. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05 18:52:32 +01:00
int sequencer_make_script(FILE *out, int argc, const char **argv,
unsigned flags);
rebase -i: generate the script via rebase--helper The first step of an interactive rebase is to generate the so-called "todo script", to be stored in the state directory as "git-rebase-todo" and to be edited by the user. Originally, we adjusted the output of `git log <options>` using a simple sed script. Over the course of the years, the code became more complicated. We now use shell scripting to edit the output of `git log` conditionally, depending whether to keep "empty" commits (i.e. commits that do not change any files). On platforms where shell scripting is not native, this can be a serious drag. And it opens the door for incompatibilities between platforms when it comes to shell scripting or to Unix-y commands. Let's just re-implement the todo script generation in plain C, using the revision machinery directly. This is substantially faster, improving the speed relative to the shell script version of the interactive rebase from 2x to 3x on Windows. Note that the rearrange_squash() function in git-rebase--interactive relied on the fact that we set the "format" variable to the config setting rebase.instructionFormat. Relying on a side effect like this is no good, hence we explicitly perform that assignment (possibly again) in rearrange_squash(). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-14 16:44:58 +02:00
rebase -i -x: add exec commands via the rebase--helper Recent work on `git-rebase--interactive` aims to convert shell code to C. Even if this is most likely not a big performance enhancement, let's convert it too since a coming change to abbreviate command names requires it to be updated. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05 18:52:33 +01:00
int sequencer_add_exec_commands(const char *command);
rebase -i: update functions to use a flags parameter Update functions used in the rebase--helper so that they take a generic 'flags' parameter instead of a growing list of options. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05 18:52:32 +01:00
int transform_todos(unsigned flags);
rebase -i: check for missing commits in the rebase--helper In particular on Windows, where shell scripts are even more expensive than on MacOSX or Linux, it makes sense to move a loop that forks Git at least once for every line in the todo list into a builtin. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-14 16:45:21 +02:00
int check_todo_list(void);
rebase -i: skip unnecessary picks using the rebase--helper In particular on Windows, where shell scripts are even more expensive than on MacOSX or Linux, it makes sense to move a loop that forks Git at least once for every line in the todo list into a builtin. Note: The original code did not try to skip unnecessary picks of root commits but punts instead (probably --root was not considered common enough of a use case to bother optimizing). We do the same, for now. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-14 16:45:25 +02:00
int skip_unnecessary_picks(void);
rebase -i: rearrange fixup/squash lines using the rebase--helper This operation has quadratic complexity, which is especially painful on Windows, where shell scripts are *already* slow (mainly due to the overhead of the POSIX emulation layer). Let's reimplement this with linear complexity (using a hash map to match the commits' subject lines) for the common case; Sadly, the fixup/squash feature's design neglected performance considerations, allowing arbitrary prefixes (read: `fixup! hell` will match the commit subject `hello world`), which means that we are stuck with quadratic performance in the worst case. The reimplemented logic also happens to fix a bug where commented-out lines (representing empty patches) were dropped by the previous code. While at it, clarify how the fixup/squash feature works in `git rebase -i`'s man page. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-14 16:45:31 +02:00
int rearrange_squash(void);
rebase -i: also expand/collapse the SHA-1s via the rebase--helper This is crucial to improve performance on Windows, as the speed is now mostly dominated by the SHA-1 transformation (because it spawns a new rev-parse process for *every* line, and spawning processes is pretty slow from Git for Windows' MSYS2 Bash). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-14 16:45:11 +02:00
cherry-pick: don't forget -s on failure In case 'git cherry-pick -s <commit>' failed, the user had to use 'git commit -s' (i.e. state the -s option again), which is easy to forget about. Instead, write the signed-off-by line early, so plain 'git commit' will have the same result. Also update 'git commit -s', so that in case there is already a relevant Signed-off-by line before the Conflicts: line, it won't add one more at the end of the message. If there is no such line, then add it before the the Conflicts: line. Signed-off-by: Miklos Vajna <vmiklos@suse.cz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-14 08:52:03 +02:00
extern const char sign_off_header[];
sequencer.c: teach append_signoff how to detect duplicate s-o-b Teach append_signoff how to detect a duplicate s-o-b in the commit footer. This is in preparation to unify the append_signoff implementations in log-tree.c and sequencer.c. Fixes test in t3511. Signed-off-by: Brandon Casey <bcasey@nvidia.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:17:35 +01:00
void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag);
merge & sequencer: unify codepaths that write "Conflicts:" hint Two identical loops in suggest_conflicts() in merge, and do_recursive_merge() in sequencer, can use a single helper function extracted from the latter that prepares the "Conflicts:" hint that is meant to remind the user the paths for which merge conflicts had to be resolved to write a better commit log message. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-24 20:34:59 +02:00
void append_conflicts_hint(struct strbuf *msgbuf);
commit: move empty message checks to libgit Move the functions that check for empty messages from bulitin/commit.c to sequencer.c so they can be shared with other commands. The functions are refactored to take an explicit cleanup mode and template filename passed by the caller. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-10 12:09:42 +01:00
int message_is_empty(const struct strbuf *sb,
enum commit_msg_cleanup_mode cleanup_mode);
int template_untouched(const struct strbuf *sb, const char *template_file,
enum commit_msg_cleanup_mode cleanup_mode);
Add a function to update HEAD after creating a commit Add update_head_with_reflog() based on the code that updates HEAD after committing in builtin/commit.c that can be called by 'git commit' and other commands. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-17 12:34:47 +01:00
int update_head_with_reflog(const struct commit *old_head,
const struct object_id *new_head,
const char *action, const struct strbuf *msg,
struct strbuf *err);
commit: move post-rewrite code to libgit Move run_rewrite_hook() from bulitin/commit.c to sequencer.c so it can be shared with other commands and add a new function commit_post_rewrite() based on the code in builtin/commit.c that encapsulates rewriting notes and running the post-rewrite hook. Once the sequencer learns how to create commits without forking 'git commit' these functions will be used when squashing commits. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-17 12:34:48 +01:00
void commit_post_rewrite(const struct commit *current_head,
const struct object_id *new_head);
cherry-pick: don't forget -s on failure In case 'git cherry-pick -s <commit>' failed, the user had to use 'git commit -s' (i.e. state the -s option again), which is easy to forget about. Instead, write the signed-off-by line early, so plain 'git commit' will have the same result. Also update 'git commit -s', so that in case there is already a relevant Signed-off-by line before the Conflicts: line, it won't add one more at the end of the message. If there is no such line, then add it before the the Conflicts: line. Signed-off-by: Miklos Vajna <vmiklos@suse.cz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-14 08:52:03 +02:00
commit: move print_commit_summary() to libgit Move print_commit_summary() from builtin/commit.c to sequencer.c so it can be shared with other commands. The function is modified by changing the last argument to a flag so callers can specify whether they want to show the author date in addition to specifying if this is an initial commit. If the sequencer dies in print_commit_summary() (which can only happen when cherry-picking or reverting) then neither the todo list nor the abort safety file are updated to reflect the commit that was just made. print_commit_summary() can die if: - The commit that was just created cannot be found or parsed. - HEAD cannot be resolved either because some other process is updating it (which is bad news in the middle of a cherry-pick) or because it is corrupt. - log_tree_commit() cannot read some objects. In all those cases dying will leave the sequencer in a sane state for aborting; 'git cherry-pick --abort' will rewind HEAD to the last successful commit before there was a problem with HEAD or the object database. If the user somehow fixes the problem and runs 'git cherry-pick --continue' then the sequencer will try and pick the same commit again which may or may not be what the user wants depending on what caused print_commit_summary() to die. If print_commit_summary() returned an error instead then update_abort_safety_file() would try to resolve HEAD which may or may not be successful. If it is successful then running 'git rebase --abort' would not rewind HEAD to the last successful commit which is not what we want. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-24 12:07:54 +01:00
#define SUMMARY_INITIAL_COMMIT (1 << 0)
#define SUMMARY_SHOW_AUTHOR_DATE (1 << 1)
void print_commit_summary(const char *prefix, const struct object_id *oid,
unsigned int flags);
revert: Introduce --reset to remove sequencer state To explicitly remove the sequencer state for a fresh cherry-pick or revert invocation, introduce a new subcommand called "--reset" to remove the sequencer state. Take the opportunity to publicly expose the sequencer paths, and a generic function called "remove_sequencer_state" that various git programs can use to remove the sequencer state in a uniform manner; "git reset" uses it later in this series. Introducing this public API is also in line with our long-term goal of eventually factoring out functions from revert.c into a generic commit sequencer. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 12:39:11 +02:00
#endif
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