diff options
| -rw-r--r-- | Documentation/git-cherry-pick.txt | 3 | ||||
| -rw-r--r-- | Documentation/git-revert.txt | 3 | ||||
| -rw-r--r-- | Documentation/sequencer.txt | 13 | ||||
| -rw-r--r-- | branch.c | 1 | ||||
| -rw-r--r-- | builtin/commit.c | 1 | ||||
| -rw-r--r-- | builtin/revert.c | 162 | ||||
| -rw-r--r-- | sequencer.h | 2 | ||||
| -rwxr-xr-x | t/t3507-cherry-pick-conflict.sh | 54 | ||||
| -rwxr-xr-x | t/t3510-cherry-pick-sequence.sh | 127 | ||||
| -rwxr-xr-x | t/t7106-reset-sequence.sh | 2 |
10 files changed, 314 insertions, 54 deletions
diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt index 2660a842fc..fed5097e00 100644 --- a/Documentation/git-cherry-pick.txt +++ b/Documentation/git-cherry-pick.txt @@ -9,8 +9,9 @@ SYNOPSIS -------- [verse] 'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff] <commit>... -'git cherry-pick' --reset 'git cherry-pick' --continue +'git cherry-pick' --quit +'git cherry-pick' --abort DESCRIPTION ----------- diff --git a/Documentation/git-revert.txt b/Documentation/git-revert.txt index f3519413e7..b699a3458e 100644 --- a/Documentation/git-revert.txt +++ b/Documentation/git-revert.txt @@ -9,8 +9,9 @@ SYNOPSIS -------- [verse] 'git revert' [--edit | --no-edit] [-n] [-m parent-number] [-s] <commit>... -'git revert' --reset 'git revert' --continue +'git revert' --quit +'git revert' --abort DESCRIPTION ----------- diff --git a/Documentation/sequencer.txt b/Documentation/sequencer.txt index 3e6df338be..5747f442f2 100644 --- a/Documentation/sequencer.txt +++ b/Documentation/sequencer.txt @@ -1,9 +1,12 @@ ---reset:: - Forget about the current operation in progress. Can be used - to clear the sequencer state after a failed cherry-pick or - revert. - --continue:: Continue the operation in progress using the information in '.git/sequencer'. Can be used to continue after resolving conflicts in a failed cherry-pick or revert. + +--quit:: + Forget about the current operation in progress. Can be used + to clear the sequencer state after a failed cherry-pick or + revert. + +--abort:: + Cancel the operation and return to the pre-sequence state. @@ -241,6 +241,7 @@ void create_branch(const char *head, void remove_branch_state(void) { unlink(git_path("CHERRY_PICK_HEAD")); + unlink(git_path("REVERT_HEAD")); unlink(git_path("MERGE_HEAD")); unlink(git_path("MERGE_RR")); unlink(git_path("MERGE_MSG")); diff --git a/builtin/commit.c b/builtin/commit.c index c46f2d18e1..8f2bebecf3 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -1514,6 +1514,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) } unlink(git_path("CHERRY_PICK_HEAD")); + unlink(git_path("REVERT_HEAD")); unlink(git_path("MERGE_HEAD")); unlink(git_path("MERGE_MSG")); unlink(git_path("MERGE_MODE")); diff --git a/builtin/revert.c b/builtin/revert.c index 544e8c3057..0c61668b85 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -40,7 +40,12 @@ static const char * const cherry_pick_usage[] = { }; enum replay_action { REVERT, CHERRY_PICK }; -enum replay_subcommand { REPLAY_NONE, REPLAY_RESET, REPLAY_CONTINUE }; +enum replay_subcommand { + REPLAY_NONE, + REPLAY_REMOVE_STATE, + REPLAY_CONTINUE, + REPLAY_ROLLBACK +}; struct replay_opts { enum replay_action action; @@ -133,11 +138,13 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) { const char * const * usage_str = revert_or_cherry_pick_usage(opts); const char *me = action_name(opts); - int reset = 0; + int remove_state = 0; int contin = 0; + int rollback = 0; struct option options[] = { - OPT_BOOLEAN(0, "reset", &reset, "forget the current operation"), - OPT_BOOLEAN(0, "continue", &contin, "continue the current operation"), + OPT_BOOLEAN(0, "quit", &remove_state, "end revert or cherry-pick sequence"), + OPT_BOOLEAN(0, "continue", &contin, "resume revert or cherry-pick sequence"), + OPT_BOOLEAN(0, "abort", &rollback, "cancel revert or cherry-pick sequence"), OPT_BOOLEAN('n', "no-commit", &opts->no_commit, "don't automatically commit"), OPT_BOOLEAN('e', "edit", &opts->edit, "edit the commit message"), OPT_NOOP_NOARG('r', NULL), @@ -168,25 +175,32 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) /* Check for incompatible subcommands */ verify_opt_mutually_compatible(me, - "--reset", reset, + "--quit", remove_state, "--continue", contin, + "--abort", rollback, NULL); /* Set the subcommand */ - if (reset) - opts->subcommand = REPLAY_RESET; + if (remove_state) + opts->subcommand = REPLAY_REMOVE_STATE; else if (contin) opts->subcommand = REPLAY_CONTINUE; + else if (rollback) + opts->subcommand = REPLAY_ROLLBACK; else opts->subcommand = REPLAY_NONE; /* Check for incompatible command line arguments */ if (opts->subcommand != REPLAY_NONE) { char *this_operation; - if (opts->subcommand == REPLAY_RESET) - this_operation = "--reset"; - else + if (opts->subcommand == REPLAY_REMOVE_STATE) + this_operation = "--quit"; + else if (opts->subcommand == REPLAY_CONTINUE) this_operation = "--continue"; + else { + assert(opts->subcommand == REPLAY_ROLLBACK); + this_operation = "--abort"; + } verify_opt_compatible(me, this_operation, "--no-commit", opts->no_commit, @@ -286,7 +300,7 @@ static char *get_encoding(const char *message) return NULL; } -static void write_cherry_pick_head(struct commit *commit) +static void write_cherry_pick_head(struct commit *commit, const char *pseudoref) { const char *filename; int fd; @@ -294,7 +308,7 @@ static void write_cherry_pick_head(struct commit *commit) strbuf_addf(&buf, "%s\n", sha1_to_hex(commit->object.sha1)); - filename = git_path("CHERRY_PICK_HEAD"); + filename = git_path(pseudoref); fd = open(filename, O_WRONLY | O_CREAT, 0666); if (fd < 0) die_errno(_("Could not open '%s' for writing"), filename); @@ -594,7 +608,9 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts) * write it at all. */ if (opts->action == CHERRY_PICK && !opts->no_commit && (res == 0 || res == 1)) - write_cherry_pick_head(commit); + write_cherry_pick_head(commit, "CHERRY_PICK_HEAD"); + if (opts->action == REVERT && ((opts->no_commit && res == 0) || res == 1)) + write_cherry_pick_head(commit, "REVERT_HEAD"); if (res) { error(opts->action == REVERT @@ -843,8 +859,11 @@ static int create_seq_dir(void) { const char *seq_dir = git_path(SEQ_DIR); - if (file_exists(seq_dir)) - return error(_("%s already exists."), seq_dir); + if (file_exists(seq_dir)) { + error(_("a cherry-pick or revert is already in progress")); + advise(_("try \"git cherry-pick (--continue | --quit | --abort)\"")); + return -1; + } else if (mkdir(seq_dir, 0777) < 0) die_errno(_("Could not create sequencer directory %s"), seq_dir); return 0; @@ -865,6 +884,71 @@ static void save_head(const char *head) die(_("Error wrapping up %s."), head_file); } +static int reset_for_rollback(const unsigned char *sha1) +{ + const char *argv[4]; /* reset --merge <arg> + NULL */ + argv[0] = "reset"; + argv[1] = "--merge"; + argv[2] = sha1_to_hex(sha1); + argv[3] = NULL; + return run_command_v_opt(argv, RUN_GIT_CMD); +} + +static int rollback_single_pick(void) +{ + unsigned char head_sha1[20]; + + if (!file_exists(git_path("CHERRY_PICK_HEAD")) && + !file_exists(git_path("REVERT_HEAD"))) + return error(_("no cherry-pick or revert in progress")); + if (!resolve_ref("HEAD", head_sha1, 0, NULL)) + return error(_("cannot resolve HEAD")); + if (is_null_sha1(head_sha1)) + return error(_("cannot abort from a branch yet to be born")); + return reset_for_rollback(head_sha1); +} + +static int sequencer_rollback(struct replay_opts *opts) +{ + const char *filename; + FILE *f; + unsigned char sha1[20]; + struct strbuf buf = STRBUF_INIT; + + filename = git_path(SEQ_HEAD_FILE); + f = fopen(filename, "r"); + if (!f && errno == ENOENT) { + /* + * There is no multiple-cherry-pick in progress. + * If CHERRY_PICK_HEAD or REVERT_HEAD indicates + * a single-cherry-pick in progress, abort that. + */ + return rollback_single_pick(); + } + if (!f) + return error(_("cannot open %s: %s"), filename, + strerror(errno)); + if (strbuf_getline(&buf, f, '\n')) { + error(_("cannot read %s: %s"), filename, ferror(f) ? + strerror(errno) : _("unexpected end of file")); + goto fail; + } + if (get_sha1_hex(buf.buf, sha1) || buf.buf[40] != '\0') { + error(_("stored pre-cherry-pick HEAD file '%s' is corrupt"), + filename); + goto fail; + } + if (reset_for_rollback(sha1)) + goto fail; + strbuf_release(&buf); + fclose(f); + return 0; +fail: + strbuf_release(&buf); + fclose(f); + return -1; +} + static void save_todo(struct commit_list *todo_list, struct replay_opts *opts) { const char *todo_file = git_path(SEQ_TODO_FILE); @@ -965,43 +1049,41 @@ static int pick_revisions(struct replay_opts *opts) * cherry-pick should be handled differently from an existing * one that is being continued */ - if (opts->subcommand == REPLAY_RESET) { + if (opts->subcommand == REPLAY_REMOVE_STATE) { remove_sequencer_state(1); return 0; - } else if (opts->subcommand == REPLAY_CONTINUE) { + } + if (opts->subcommand == REPLAY_ROLLBACK) + return sequencer_rollback(opts); + if (opts->subcommand == REPLAY_CONTINUE) { if (!file_exists(git_path(SEQ_TODO_FILE))) - goto error; + return error(_("No %s in progress"), action_name(opts)); read_populate_opts(&opts); read_populate_todo(&todo_list, opts); /* Verify that the conflict has been resolved */ if (!index_differs_from("HEAD", 0)) todo_list = todo_list->next; - } else { - /* - * Start a new cherry-pick/ revert sequence; but - * first, make sure that an existing one isn't in - * progress - */ + return pick_commits(todo_list, opts); + } - walk_revs_populate_todo(&todo_list, opts); - if (create_seq_dir() < 0) { - error(_("A cherry-pick or revert is in progress.")); - advise(_("Use --continue to continue the operation")); - advise(_("or --reset to forget about it")); - return -1; - } - if (get_sha1("HEAD", sha1)) { - if (opts->action == REVERT) - return error(_("Can't revert as initial commit")); - return error(_("Can't cherry-pick into empty head")); - } - save_head(sha1_to_hex(sha1)); - save_opts(opts); + /* + * Start a new cherry-pick/ revert sequence; but + * first, make sure that an existing one isn't in + * progress + */ + + walk_revs_populate_todo(&todo_list, opts); + if (create_seq_dir() < 0) + return -1; + if (get_sha1("HEAD", sha1)) { + if (opts->action == REVERT) + return error(_("Can't revert as initial commit")); + return error(_("Can't cherry-pick into empty head")); } + save_head(sha1_to_hex(sha1)); + save_opts(opts); return pick_commits(todo_list, opts); -error: - return error(_("No %s in progress"), action_name(opts)); } int cmd_revert(int argc, const char **argv, const char *prefix) diff --git a/sequencer.h b/sequencer.h index 905d295012..f435fdb4b1 100644 --- a/sequencer.h +++ b/sequencer.h @@ -13,7 +13,7 @@ * * With the aggressive flag, it additionally removes SEQ_OLD_DIR, * ignoring any errors. Inteded to be used by the sequencer's - * '--reset' subcommand. + * '--quit' subcommand. */ void remove_sequencer_state(int aggressive); diff --git a/t/t3507-cherry-pick-conflict.sh b/t/t3507-cherry-pick-conflict.sh index cb45574a7b..ee1659c178 100755 --- a/t/t3507-cherry-pick-conflict.sh +++ b/t/t3507-cherry-pick-conflict.sh @@ -253,6 +253,60 @@ test_expect_success 'revert also handles conflicts sanely' ' test_cmp expected actual ' +test_expect_success 'failed revert sets REVERT_HEAD' ' + pristine_detach initial && + test_must_fail git revert picked && + test_cmp_rev picked REVERT_HEAD +' + +test_expect_success 'successful revert does not set REVERT_HEAD' ' + pristine_detach base && + git revert base && + test_must_fail git rev-parse --verify CHERRY_PICK_HEAD && + test_must_fail git rev-parse --verify REVERT_HEAD +' + +test_expect_success 'revert --no-commit sets REVERT_HEAD' ' + pristine_detach base && + git revert --no-commit base && + test_must_fail git rev-parse --verify CHERRY_PICK_HEAD && + test_cmp_rev base REVERT_HEAD +' + +test_expect_success 'revert w/dirty tree does not set REVERT_HEAD' ' + pristine_detach base && + echo foo > foo && + test_must_fail git revert base && + test_must_fail git rev-parse --verify CHERRY_PICK_HEAD && + test_must_fail git rev-parse --verify REVERT_HEAD +' + +test_expect_success 'GIT_CHERRY_PICK_HELP does not suppress REVERT_HEAD' ' + pristine_detach initial && + ( + GIT_CHERRY_PICK_HELP="and then do something else" && + GIT_REVERT_HELP="and then do something else, again" && + export GIT_CHERRY_PICK_HELP GIT_REVERT_HELP && + test_must_fail git revert picked + ) && + test_must_fail git rev-parse --verify CHERRY_PICK_HEAD && + test_cmp_rev picked REVERT_HEAD +' + +test_expect_success 'git reset clears REVERT_HEAD' ' + pristine_detach initial && + test_must_fail git revert picked && + git reset && + test_must_fail git rev-parse --verify REVERT_HEAD +' + +test_expect_success 'failed commit does not clear REVERT_HEAD' ' + pristine_detach initial && + test_must_fail git revert picked && + test_must_fail git commit && + test_cmp_rev picked REVERT_HEAD +' + test_expect_success 'revert conflict, diff3 -m style' ' pristine_detach initial && git config merge.conflictstyle diff3 && diff --git a/t/t3510-cherry-pick-sequence.sh b/t/t3510-cherry-pick-sequence.sh index 3bca2b3dd5..2c4c1c851d 100755 --- a/t/t3510-cherry-pick-sequence.sh +++ b/t/t3510-cherry-pick-sequence.sh @@ -2,6 +2,7 @@ test_description='Test cherry-pick continuation features + + yetanotherpick: rewrites foo to e + anotherpick: rewrites foo to d + picked: rewrites foo to c + unrelatedpick: rewrites unrelated to reallyunrelated @@ -13,12 +14,18 @@ test_description='Test cherry-pick continuation features . ./test-lib.sh pristine_detach () { - git cherry-pick --reset && + git cherry-pick --quit && git checkout -f "$1^0" && git read-tree -u --reset HEAD && git clean -d -f -f -q -x } +test_cmp_rev () { + git rev-parse --verify "$1" >expect.rev && + git rev-parse --verify "$2" >actual.rev && + test_cmp expect.rev actual.rev +} + test_expect_success setup ' echo unrelated >unrelated && git add unrelated && @@ -27,6 +34,7 @@ test_expect_success setup ' test_commit unrelatedpick unrelated reallyunrelated && test_commit picked foo c && test_commit anotherpick foo d && + test_commit yetanotherpick foo e && git config advice.detachedhead false ' @@ -70,18 +78,117 @@ test_expect_success 'cherry-pick cleans up sequencer state upon success' ' test_path_is_missing .git/sequencer ' -test_expect_success '--reset does not complain when no cherry-pick is in progress' ' +test_expect_success '--quit does not complain when no cherry-pick is in progress' ' pristine_detach initial && - git cherry-pick --reset + git cherry-pick --quit ' -test_expect_success '--reset cleans up sequencer state' ' +test_expect_success '--abort requires cherry-pick in progress' ' + pristine_detach initial && + test_must_fail git cherry-pick --abort +' + +test_expect_success '--quit cleans up sequencer state' ' pristine_detach initial && test_must_fail git cherry-pick base..picked && - git cherry-pick --reset && + git cherry-pick --quit && test_path_is_missing .git/sequencer ' +test_expect_success '--quit keeps HEAD and conflicted index intact' ' + pristine_detach initial && + cat >expect <<-\EOF && + OBJID + :100644 100644 OBJID OBJID M unrelated + OBJID + :000000 100644 OBJID OBJID A foo + :000000 100644 OBJID OBJID A unrelated + EOF + test_must_fail git cherry-pick base..picked && + git cherry-pick --quit && + test_path_is_missing .git/sequencer && + test_must_fail git update-index --refresh && + { + git rev-list HEAD | + git diff-tree --root --stdin | + sed "s/$_x40/OBJID/g" + } >actual && + test_cmp expect actual +' + +test_expect_success '--abort to cancel multiple cherry-pick' ' + pristine_detach initial && + test_must_fail git cherry-pick base..anotherpick && + git cherry-pick --abort && + test_path_is_missing .git/sequencer && + test_cmp_rev initial HEAD && + git update-index --refresh && + git diff-index --exit-code HEAD +' + +test_expect_success '--abort to cancel single cherry-pick' ' + pristine_detach initial && + test_must_fail git cherry-pick picked && + git cherry-pick --abort && + test_path_is_missing .git/sequencer && + test_cmp_rev initial HEAD && + git update-index --refresh && + git diff-index --exit-code HEAD +' + +test_expect_success 'cherry-pick --abort to cancel multiple revert' ' + pristine_detach anotherpick && + test_must_fail git revert base..picked && + git cherry-pick --abort && + test_path_is_missing .git/sequencer && + test_cmp_rev anotherpick HEAD && + git update-index --refresh && + git diff-index --exit-code HEAD +' + +test_expect_success 'revert --abort works, too' ' + pristine_detach anotherpick && + test_must_fail git revert base..picked && + git revert --abort && + test_path_is_missing .git/sequencer && + test_cmp_rev anotherpick HEAD +' + +test_expect_success '--abort to cancel single revert' ' + pristine_detach anotherpick && + test_must_fail git revert picked && + git revert --abort && + test_path_is_missing .git/sequencer && + test_cmp_rev anotherpick HEAD && + git update-index --refresh && + git diff-index --exit-code HEAD +' + +test_expect_success '--abort keeps unrelated change, easy case' ' + pristine_detach unrelatedpick && + echo changed >expect && + test_must_fail git cherry-pick picked..yetanotherpick && + echo changed >unrelated && + git cherry-pick --abort && + test_cmp expect unrelated +' + +test_expect_success '--abort refuses to clobber unrelated change, harder case' ' + pristine_detach initial && + echo changed >expect && + test_must_fail git cherry-pick base..anotherpick && + echo changed >unrelated && + test_must_fail git cherry-pick --abort && + test_cmp expect unrelated && + git rev-list HEAD >log && + test_line_count = 2 log && + test_must_fail git update-index --refresh && + + git checkout unrelated && + git cherry-pick --abort && + test_cmp_rev initial HEAD +' + test_expect_success 'cherry-pick cleans up sequencer state when one commit is left' ' pristine_detach initial && test_must_fail git cherry-pick base..picked && @@ -106,6 +213,16 @@ test_expect_success 'cherry-pick cleans up sequencer state when one commit is le test_cmp expect actual ' +test_expect_failure '--abort after last commit in sequence' ' + pristine_detach initial && + test_must_fail git cherry-pick base..picked && + git cherry-pick --abort && + test_path_is_missing .git/sequencer && + test_cmp_rev initial HEAD && + git update-index --refresh && + git diff-index --exit-code HEAD +' + test_expect_success 'cherry-pick does not implicitly stomp an existing operation' ' pristine_detach initial && test_must_fail git cherry-pick base..anotherpick && diff --git a/t/t7106-reset-sequence.sh b/t/t7106-reset-sequence.sh index 4956caaf82..3f86e8c5e8 100755 --- a/t/t7106-reset-sequence.sh +++ b/t/t7106-reset-sequence.sh @@ -12,7 +12,7 @@ test_description='Test interaction of reset --hard with sequencer . ./test-lib.sh pristine_detach () { - git cherry-pick --reset && + git cherry-pick --quit && git checkout -f "$1^0" && git read-tree -u --reset HEAD && git clean -d -f -f -q -x |