diff options
| -rw-r--r-- | Documentation/git-cherry-pick.txt | 6 | ||||
| -rw-r--r-- | Documentation/git-revert.txt | 6 | ||||
| -rw-r--r-- | Documentation/sequencer.txt | 9 | ||||
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | advice.c | 31 | ||||
| -rw-r--r-- | advice.h | 3 | ||||
| -rw-r--r-- | branch.c | 2 | ||||
| -rw-r--r-- | builtin/revert.c | 737 | ||||
| -rw-r--r-- | cache.h | 2 | ||||
| -rw-r--r-- | config.c | 36 | ||||
| -rw-r--r-- | sequencer.c | 19 | ||||
| -rw-r--r-- | sequencer.h | 20 | ||||
| -rwxr-xr-x | t/t3510-cherry-pick-sequence.sh | 214 | ||||
| -rwxr-xr-x | t/t7106-reset-sequence.sh | 44 |
14 files changed, 960 insertions, 171 deletions
diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt index 7cfa3d92a..2660a842f 100644 --- a/Documentation/git-cherry-pick.txt +++ b/Documentation/git-cherry-pick.txt @@ -9,6 +9,8 @@ SYNOPSIS -------- [verse] 'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff] <commit>... +'git cherry-pick' --reset +'git cherry-pick' --continue DESCRIPTION ----------- @@ -110,6 +112,10 @@ effect to your index in a row. Pass the merge strategy-specific option through to the merge strategy. See linkgit:git-merge[1] for details. +SEQUENCER SUBCOMMANDS +--------------------- +include::sequencer.txt[] + EXAMPLES -------- `git cherry-pick master`:: diff --git a/Documentation/git-revert.txt b/Documentation/git-revert.txt index b311d59c7..f3519413e 100644 --- a/Documentation/git-revert.txt +++ b/Documentation/git-revert.txt @@ -9,6 +9,8 @@ SYNOPSIS -------- [verse] 'git revert' [--edit | --no-edit] [-n] [-m parent-number] [-s] <commit>... +'git revert' --reset +'git revert' --continue DESCRIPTION ----------- @@ -91,6 +93,10 @@ effect to your index in a row. Pass the merge strategy-specific option through to the merge strategy. See linkgit:git-merge[1] for details. +SEQUENCER SUBCOMMANDS +--------------------- +include::sequencer.txt[] + EXAMPLES -------- `git revert HEAD~3`:: diff --git a/Documentation/sequencer.txt b/Documentation/sequencer.txt new file mode 100644 index 000000000..3e6df338b --- /dev/null +++ b/Documentation/sequencer.txt @@ -0,0 +1,9 @@ +--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. @@ -557,6 +557,7 @@ LIB_H += rerere.h LIB_H += resolve-undo.h LIB_H += revision.h LIB_H += run-command.h +LIB_H += sequencer.h LIB_H += sha1-array.h LIB_H += sha1-lookup.h LIB_H += sideband.h @@ -664,6 +665,7 @@ LIB_OBJS += revision.o LIB_OBJS += run-command.o LIB_OBJS += server-info.o LIB_OBJS += setup.o +LIB_OBJS += sequencer.o LIB_OBJS += sha1-array.o LIB_OBJS += sha1-lookup.o LIB_OBJS += sha1_file.o @@ -19,6 +19,15 @@ static struct { { "detachedhead", &advice_detached_head }, }; +void advise(const char *advice, ...) +{ + va_list params; + + va_start(params, advice); + vreportf("hint: ", advice, params); + va_end(params); +} + int git_default_advice_config(const char *var, const char *value) { const char *k = skip_prefix(var, "advice."); @@ -34,16 +43,24 @@ int git_default_advice_config(const char *var, const char *value) return 0; } -void NORETURN die_resolve_conflict(const char *me) +int error_resolve_conflict(const char *me) { - if (advice_resolve_conflict) + error("'%s' is not possible because you have unmerged files.", me); + if (advice_resolve_conflict) { /* * Message used both when 'git commit' fails and when * other commands doing a merge do. */ - die("'%s' is not possible because you have unmerged files.\n" - "Please, fix them up in the work tree, and then use 'git add/rm <file>' as\n" - "appropriate to mark resolution and make a commit, or use 'git commit -a'.", me); - else - die("'%s' is not possible because you have unmerged files.", me); + advise("Fix them up in the work tree,"); + advise("and then use 'git add/rm <file>' as"); + advise("appropriate to mark resolution and make a commit,"); + advise("or use 'git commit -a'."); + } + return -1; +} + +void NORETURN die_resolve_conflict(const char *me) +{ + error_resolve_conflict(me); + die("Exiting because of an unresolved conflict."); } @@ -11,7 +11,8 @@ extern int advice_implicit_identity; extern int advice_detached_head; int git_default_advice_config(const char *var, const char *value); - +void advise(const char *advice, ...); +int error_resolve_conflict(const char *me); extern void NORETURN die_resolve_conflict(const char *me); #endif /* ADVICE_H */ @@ -3,6 +3,7 @@ #include "refs.h" #include "remote.h" #include "commit.h" +#include "sequencer.h" struct tracking { struct refspec spec; @@ -245,4 +246,5 @@ void remove_branch_state(void) unlink(git_path("MERGE_MSG")); unlink(git_path("MERGE_MODE")); unlink(git_path("SQUASH_MSG")); + remove_sequencer_state(0); } diff --git a/builtin/revert.c b/builtin/revert.c index 3117776c2..ba27cf15e 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -13,6 +13,8 @@ #include "rerere.h" #include "merge-recursive.h" #include "refs.h" +#include "dir.h" +#include "sequencer.h" /* * This implements the builtins revert and cherry-pick. @@ -27,85 +29,189 @@ static const char * const revert_usage[] = { "git revert [options] <commit-ish>", + "git revert <subcommand>", NULL }; static const char * const cherry_pick_usage[] = { "git cherry-pick [options] <commit-ish>", + "git cherry-pick <subcommand>", NULL }; -static int edit, no_replay, no_commit, mainline, signoff, allow_ff; -static enum { REVERT, CHERRY_PICK } action; -static struct commit *commit; -static int commit_argc; -static const char **commit_argv; -static int allow_rerere_auto; - -static const char *me; - -/* Merge strategy. */ -static const char *strategy; -static const char **xopts; -static size_t xopts_nr, xopts_alloc; +enum replay_action { REVERT, CHERRY_PICK }; +enum replay_subcommand { REPLAY_NONE, REPLAY_RESET, REPLAY_CONTINUE }; + +struct replay_opts { + enum replay_action action; + enum replay_subcommand subcommand; + + /* Boolean options */ + int edit; + int record_origin; + int no_commit; + int signoff; + int allow_ff; + int allow_rerere_auto; + + int mainline; + int commit_argc; + const char **commit_argv; + + /* Merge strategy */ + const char *strategy; + const char **xopts; + size_t xopts_nr, xopts_alloc; +}; #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" +static const char *action_name(const struct replay_opts *opts) +{ + return opts->action == REVERT ? "revert" : "cherry-pick"; +} + static char *get_encoding(const char *message); -static const char * const *revert_or_cherry_pick_usage(void) +static const char * const *revert_or_cherry_pick_usage(struct replay_opts *opts) { - return action == REVERT ? revert_usage : cherry_pick_usage; + return opts->action == REVERT ? revert_usage : cherry_pick_usage; } static int option_parse_x(const struct option *opt, const char *arg, int unset) { + struct replay_opts **opts_ptr = opt->value; + struct replay_opts *opts = *opts_ptr; + if (unset) return 0; - ALLOC_GROW(xopts, xopts_nr + 1, xopts_alloc); - xopts[xopts_nr++] = xstrdup(arg); + ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc); + opts->xopts[opts->xopts_nr++] = xstrdup(arg); return 0; } -static void parse_args(int argc, const char **argv) +static void verify_opt_compatible(const char *me, const char *base_opt, ...) +{ + const char *this_opt; + va_list ap; + + va_start(ap, base_opt); + while ((this_opt = va_arg(ap, const char *))) { + if (va_arg(ap, int)) + break; + } + va_end(ap); + + if (this_opt) + die(_("%s: %s cannot be used with %s"), me, this_opt, base_opt); +} + +static void verify_opt_mutually_compatible(const char *me, ...) +{ + const char *opt1, *opt2; + va_list ap; + + va_start(ap, me); + while ((opt1 = va_arg(ap, const char *))) { + if (va_arg(ap, int)) + break; + } + if (opt1) { + while ((opt2 = va_arg(ap, const char *))) { + if (va_arg(ap, int)) + break; + } + } + + if (opt1 && opt2) + die(_("%s: %s cannot be used with %s"), me, opt1, opt2); +} + +static void parse_args(int argc, const char **argv, struct replay_opts *opts) { - const char * const * usage_str = revert_or_cherry_pick_usage(); + const char * const * usage_str = revert_or_cherry_pick_usage(opts); + const char *me = action_name(opts); int noop; + int reset = 0; + int contin = 0; struct option options[] = { - OPT_BOOLEAN('n', "no-commit", &no_commit, "don't automatically commit"), - OPT_BOOLEAN('e', "edit", &edit, "edit the commit message"), + OPT_BOOLEAN(0, "reset", &reset, "forget the current operation"), + OPT_BOOLEAN(0, "continue", &contin, "continue the current operation"), + OPT_BOOLEAN('n', "no-commit", &opts->no_commit, "don't automatically commit"), + OPT_BOOLEAN('e', "edit", &opts->edit, "edit the commit message"), { OPTION_BOOLEAN, 'r', NULL, &noop, NULL, "no-op (backward compatibility)", PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 0 }, - OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"), - OPT_INTEGER('m', "mainline", &mainline, "parent number"), - OPT_RERERE_AUTOUPDATE(&allow_rerere_auto), - OPT_STRING(0, "strategy", &strategy, "strategy", "merge strategy"), - OPT_CALLBACK('X', "strategy-option", &xopts, "option", + OPT_BOOLEAN('s', "signoff", &opts->signoff, "add Signed-off-by:"), + OPT_INTEGER('m', "mainline", &opts->mainline, "parent number"), + OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto), + OPT_STRING(0, "strategy", &opts->strategy, "strategy", "merge strategy"), + OPT_CALLBACK('X', "strategy-option", &opts, "option", "option for merge strategy", option_parse_x), OPT_END(), OPT_END(), OPT_END(), }; - if (action == CHERRY_PICK) { + if (opts->action == CHERRY_PICK) { struct option cp_extra[] = { - OPT_BOOLEAN('x', NULL, &no_replay, "append commit name"), - OPT_BOOLEAN(0, "ff", &allow_ff, "allow fast-forward"), + OPT_BOOLEAN('x', NULL, &opts->record_origin, "append commit name"), + OPT_BOOLEAN(0, "ff", &opts->allow_ff, "allow fast-forward"), OPT_END(), }; if (parse_options_concat(options, ARRAY_SIZE(options), cp_extra)) die(_("program error")); } - commit_argc = parse_options(argc, argv, NULL, options, usage_str, - PARSE_OPT_KEEP_ARGV0 | - PARSE_OPT_KEEP_UNKNOWN); - if (commit_argc < 2) + opts->commit_argc = parse_options(argc, argv, NULL, options, usage_str, + PARSE_OPT_KEEP_ARGV0 | + PARSE_OPT_KEEP_UNKNOWN); + + /* Check for incompatible subcommands */ + verify_opt_mutually_compatible(me, + "--reset", reset, + "--continue", contin, + NULL); + + /* Set the subcommand */ + if (reset) + opts->subcommand = REPLAY_RESET; + else if (contin) + opts->subcommand = REPLAY_CONTINUE; + 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 + this_operation = "--continue"; + + verify_opt_compatible(me, this_operation, + "--no-commit", opts->no_commit, + "--signoff", opts->signoff, + "--mainline", opts->mainline, + "--strategy", opts->strategy ? 1 : 0, + "--strategy-option", opts->xopts ? 1 : 0, + "-x", opts->record_origin, + "--ff", opts->allow_ff, + NULL); + } + + else if (opts->commit_argc < 2) usage_with_options(usage_str, options); - commit_argv = argv; + if (opts->allow_ff) + verify_opt_compatible(me, "--ff", + "--signoff", opts->signoff, + "--no-commit", opts->no_commit, + "-x", opts->record_origin, + "--edit", opts->edit, + NULL); + opts->commit_argv = argv; } struct commit_message { @@ -116,25 +222,25 @@ struct commit_message { const char *message; }; -static int get_message(const char *raw_message, struct commit_message *out) +static int get_message(struct commit *commit, struct commit_message *out) { const char *encoding; const char *abbrev, *subject; int abbrev_len, subject_len; char *q; - if (!raw_message) + if (!commit->buffer) return -1; - encoding = get_encoding(raw_message); + encoding = get_encoding(commit->buffer); if (!encoding) encoding = "UTF-8"; if (!git_commit_encoding) git_commit_encoding = "UTF-8"; out->reencoded_message = NULL; - out->message = raw_message; + out->message = commit->buffer; if (strcmp(encoding, git_commit_encoding)) - out->reencoded_message = reencode_string(raw_message, + out->reencoded_message = reencode_string(commit->buffer, git_commit_encoding, encoding); if (out->reencoded_message) out->message = out->reencoded_message; @@ -167,9 +273,6 @@ static char *get_encoding(const char *message) { const char *p = message, *eol; - if (!p) - die (_("Could not read commit message of %s"), - sha1_to_hex(commit->object.sha1)); while (*p && *p != '\n') { for (eol = p + 1; *eol && *eol != '\n'; eol++) ; /* do nothing */ @@ -185,20 +288,7 @@ static char *get_encoding(const char *message) return NULL; } -static void add_message_to_msg(struct strbuf *msgbuf, const char *message) -{ - const char *p = message; - while (*p && (*p != '\n' || p[1] != '\n')) - p++; - - if (!*p) - strbuf_addstr(msgbuf, sha1_to_hex(commit->object.sha1)); - - p += 2; - strbuf_addstr(msgbuf, p); -} - -static void write_cherry_pick_head(void) +static void write_cherry_pick_head(struct commit *commit) { int fd; struct strbuf buf = STRBUF_INIT; @@ -214,15 +304,6 @@ static void write_cherry_pick_head(void) strbuf_release(&buf); } -static void advise(const char *advice, ...) -{ - va_list params; - - va_start(params, advice); - vreportf("hint: ", advice, params); - va_end(params); -} - static void print_advice(void) { char *msg = getenv("GIT_CHERRY_PICK_HELP"); @@ -261,25 +342,20 @@ static struct tree *empty_tree(void) return lookup_tree((const unsigned char *)EMPTY_TREE_SHA1_BIN); } -static NORETURN void die_dirty_index(const char *me) +static int error_dirty_index(struct replay_opts *opts) { - if (read_cache_unmerged()) { - die_resolve_conflict(me); - } else { - if (advice_commit_before_merge) { - if (action == REVERT) - die(_("Your local changes would be overwritten by revert.\n" - "Please, commit your changes or stash them to proceed.")); - else - die(_("Your local changes would be overwritten by cherry-pick.\n" - "Please, commit your changes or stash them to proceed.")); - } else { - if (action == REVERT) - die(_("Your local changes would be overwritten by revert.\n")); - else - die(_("Your local changes would be overwritten by cherry-pick.\n")); - } - } + if (read_cache_unmerged()) + return error_resolve_conflict(action_name(opts)); + + /* Different translation strings for cherry-pick and revert */ + if (opts->action == CHERRY_PICK) + error(_("Your local changes would be overwritten by cherry-pick.")); + else + error(_("Your local changes would be overwritten by revert.")); + + if (advice_commit_before_merge) + advise(_("Commit your changes or stash them to proceed.")); + return -1; } static int fast_forward_to(const unsigned char *to, const unsigned char *from) @@ -295,7 +371,8 @@ static int fast_forward_to(const unsigned char *to, const unsigned char *from) static int do_recursive_merge(struct commit *base, struct commit *next, const char *base_label, const char *next_label, - unsigned char *head, struct strbuf *msgbuf) + unsigned char *head, struct strbuf *msgbuf, + struct replay_opts *opts) { struct merge_options o; struct tree *result, *next_tree, *base_tree, *head_tree; @@ -316,7 +393,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next, next_tree = next ? next->tree : empty_tree(); base_tree = base ? base->tree : empty_tree(); - for (xopt = xopts; xopt != xopts + xopts_nr; xopt++) + for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) parse_merge_opt(&o, *xopt); clean = merge_trees(&o, @@ -327,7 +404,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next, (write_cache(index_fd, active_cache, active_nr) || commit_locked_index(&index_lock))) /* TRANSLATORS: %s will be "revert" or "cherry-pick" */ - die(_("%s: Unable to write new index file"), me); + die(_("%s: Unable to write new index file"), action_name(opts)); rollback_lock_file(&index_lock); if (!clean) { @@ -356,7 +433,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next, * If we are revert, or if our cherry-pick results in a hand merge, * we had better say that the current user is responsible for that. */ -static int run_git_commit(const char *defmsg) +static int run_git_commit(const char *defmsg, struct replay_opts *opts) { /* 6 is max possible length of our args array including NULL */ const char *args[6]; @@ -364,9 +441,9 @@ static int run_git_commit(const char *defmsg) args[i++] = "commit"; args[i++] = "-n"; - if (signoff) + if (opts->signoff) args[i++] = "-s"; - if (!edit) { + if (!opts->edit) { args[i++] = "-F"; args[i++] = defmsg; } @@ -375,7 +452,7 @@ static int run_git_commit(const char *defmsg) return run_command_v_opt(args, RUN_GIT_CMD); } -static int do_pick_commit(void) +static int do_pick_commit(struct commit *commit, struct replay_opts *opts) { unsigned char head[20]; struct commit *base, *next, *parent; @@ -385,7 +462,7 @@ static int do_pick_commit(void) struct strbuf msgbuf = STRBUF_INIT; int res; - if (no_commit) { + if (opts->no_commit) { /* * We do not intend to commit immediately. We just want to * merge the differences in, so let's compute the tree @@ -396,9 +473,9 @@ static int do_pick_commit(void) die (_("Your index file is unmerged.")); } else { if (get_sha1("HEAD", head)) - die (_("You do not have a valid HEAD")); + return error(_("You do not have a valid HEAD")); if (index_differs_from("HEAD", 0)) - die_dirty_index(me); + return error_dirty_index(opts); } discard_cache(); @@ -410,36 +487,36 @@ static int do_pick_commit(void) int cnt; struct commit_list *p; - if (!mainline) - die(_("Commit %s is a merge but no -m option was given."), - sha1_to_hex(commit->object.sha1)); + if (!opts->mainline) + return error(_("Commit %s is a merge but no -m option was given."), + sha1_to_hex(commit->object.sha1)); for (cnt = 1, p = commit->parents; - cnt != mainline && p; + cnt != opts->mainline && p; cnt++) p = p->next; - if (cnt != mainline || !p) - die(_("Commit %s does not have parent %d"), - sha1_to_hex(commit->object.sha1), mainline); + if (cnt != opts->mainline || !p) + return error(_("Commit %s does not have parent %d"), + sha1_to_hex(commit->object.sha1), opts->mainline); parent = p->item; - } else if (0 < mainline) - die(_("Mainline was specified but commit %s is not a merge."), - sha1_to_hex(commit->object.sha1)); + } else if (0 < opts->mainline) + return error(_("Mainline was specified but commit %s is not a merge."), + sha1_to_hex(commit->object.sha1)); else parent = commit->parents->item; - if (allow_ff && parent && !hashcmp(parent->object.sha1, head)) + if (opts->allow_ff && parent && !hashcmp(parent->object.sha1, head)) return fast_forward_to(commit->object.sha1, head); if (parent && parse_commit(parent) < 0) /* TRANSLATORS: The first %s will be "revert" or "cherry-pick", the second %s a SHA1 */ - die(_("%s: cannot parse parent commit %s"), - me, sha1_to_hex(parent->object.sha1)); + return error(_("%s: cannot parse parent commit %s"), + action_name(opts), sha1_to_hex(parent->object.sha1)); - if (get_message(commit->buffer, &msg) != 0) - die(_("Cannot get commit message for %s"), - sha1_to_hex(commit->object.sha1)); + if (get_message(commit, &msg) != 0) + return error(_("Cannot get commit message for %s"), + sha1_to_hex(commit->object.sha1)); /* * "commit" is an existing commit. We would want to apply @@ -450,7 +527,7 @@ static int do_pick_commit(void) defmsg = git_pathdup("MERGE_MSG"); - if (action == REVERT) { + if (opts->action == REVERT) { base = commit; base_label = msg.label; next = parent; @@ -466,23 +543,36 @@ static int do_pick_commit(void) } strbuf_addstr(&msgbuf, ".\n"); } else { + const char *p; + base = parent; base_label = msg.parent_label; next = commit; next_label = msg.label; - add_message_to_msg(&msgbuf, msg.message); - if (no_replay) { + + /* + * Append the commit log message to msgbuf; it starts + * after the tree, parent, author, committer + * information followed by "\n\n". + */ + p = strstr(msg.message, "\n\n"); + if (p) { + p += 2; + strbuf_addstr(&msgbuf, p); + } + + if (opts->record_origin) { strbuf_addstr(&msgbuf, "(cherry picked from commit "); strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1)); strbuf_addstr(&msgbuf, ")\n"); } - if (!no_commit) - write_cherry_pick_head(); + if (!opts->no_commit) + write_cherry_pick_head(commit); } - if (!strategy || !strcmp(strategy, "recursive") || action == REVERT) { + if (!opts->strategy || !strcmp(opts->strategy, "recursive") || opts->action == REVERT) { res = do_recursive_merge(base, next, base_label, next_label, - head, &msgbuf); + head, &msgbuf, opts); write_message(&msgbuf, defmsg); } else { struct commit_list *common = NULL; @@ -492,23 +582,23 @@ static int do_pick_commit(void) commit_list_insert(base, &common); commit_list_insert(next, &remotes); - res = try_merge_command(strategy, xopts_nr, xopts, common, - sha1_to_hex(head), remotes); + res = try_merge_command(opts->strategy, opts->xopts_nr, opts->xopts, + common, sha1_to_hex(head), remotes); free_commit_list(common); free_commit_list(remotes); } if (res) { - error(action == REVERT + error(opts->action == REVERT ? _("could not revert %s... %s") : _("could not apply %s... %s"), find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), msg.subject); print_advice(); - rerere(allow_rerere_auto); + rerere(opts->allow_rerere_auto); } else { - if (!no_commit) - res = run_git_commit(defmsg); + if (!opts->no_commit) + res = run_git_commit(defmsg, opts); } free_message(&msg); @@ -517,18 +607,18 @@ static int do_pick_commit(void) return res; } -static void prepare_revs(struct rev_info *revs) +static void prepare_revs(struct rev_info *revs, struct replay_opts *opts) { int argc; init_revisions(revs, NULL); revs->no_walk = 1; - if (action != REVERT) + if (opts->action != REVERT) revs->reverse = 1; - argc = setup_revisions(commit_argc, commit_argv, revs, NULL); + argc = setup_revisions(opts->commit_argc, opts->commit_argv, revs, NULL); if (argc > 1) - usage(*revert_or_cherry_pick_usage()); + usage(*revert_or_cherry_pick_usage(opts)); if (prepare_revision_walk(revs)) die(_("revision walk setup failed")); @@ -537,64 +627,403 @@ static void prepare_revs(struct rev_info *revs) die(_("empty commit set passed")); } -static void read_and_refresh_cache(const char *me) +static void read_and_refresh_cache(struct replay_opts *opts) { static struct lock_file index_lock; int index_fd = hold_locked_index(&index_lock, 0); if (read_index_preload(&the_index, NULL) < 0) - die(_("git %s: failed to read the index"), me); + die(_("git %s: failed to read the index"), action_name(opts)); refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); if (the_index.cache_changed) { if (write_index(&the_index, index_fd) || commit_locked_index(&index_lock)) - die(_("git %s: failed to refresh the index"), me); + die(_("git %s: failed to refresh the index"), action_name(opts)); } rollback_lock_file(&index_lock); } -static int revert_or_cherry_pick(int argc, const char **argv) +/* + * Append a commit to the end of the commit_list. + * + * next starts by pointing to the variable that holds the head of an + * empty commit_list, and is updated to point to the "next" field of + * the last item on the list as new commits are appended. + * + * Usage example: + * + * struct commit_list *list; + * struct commit_list **next = &list; + * + * next = commit_list_append(c1, next); + * next = commit_list_append(c2, next); + * assert(commit_list_count(list) == 2); + * return list; + */ +static struct commit_list **commit_list_append(struct commit *commit, + struct commit_list **next) +{ + struct commit_list *new = xmalloc(sizeof(struct commit_list)); + new->item = commit; + *next = new; + new->next = NULL; + return &new->next; +} + +static int format_todo(struct strbuf *buf, struct commit_list *todo_list, + struct replay_opts *opts) +{ + struct commit_list *cur = NULL; + struct commit_message msg = { NULL, NULL, NULL, NULL, NULL }; + const char *sha1_abbrev = NULL; + const char *action_str = opts->action == REVERT ? "revert" : "pick"; + + for (cur = todo_list; cur; cur = cur->next) { + sha1_abbrev = find_unique_abbrev(cur->item->object.sha1, DEFAULT_ABBREV); + if (get_message(cur->item, &msg)) + return error(_("Cannot get commit message for %s"), sha1_abbrev); + strbuf_addf(buf, "%s %s %s\n", action_str, sha1_abbrev, msg.subject); + } + return 0; +} + +static struct commit *parse_insn_line(char *start, struct replay_opts *opts) +{ + unsigned char commit_sha1[20]; + char sha1_abbrev[40]; + enum replay_action action; + int insn_len = 0; + char *p, *q; + + if (!prefixcmp(start, "pick ")) { + action = CHERRY_PICK; + insn_len = strlen("pick"); + p = start + insn_len + 1; + } else if (!prefixcmp(start, "revert ")) { + action = REVERT; + insn_len = strlen("revert"); + p = start + insn_len + 1; + } else + return NULL; + + q = strchr(p, ' '); + if (!q) + return NULL; + q++; + + strlcpy(sha1_abbrev, p, q - p); + + /* + * Verify that the action matches up with the one in + * opts; we don't support arbitrary instructions + */ + if (action != opts->action) { + const char *action_str; + action_str = action == REVERT ? "revert" : "cherry-pick"; + error(_("Cannot %s during a %s"), action_str, action_name(opts)); + return NULL; + } + + if (get_sha1(sha1_abbrev, commit_sha1) < 0) + return NULL; + + return lookup_commit_reference(commit_sha1); +} + +static int parse_insn_buffer(char *buf, struct commit_list **todo_list, + struct replay_opts *opts) +{ + struct commit_list **next = todo_list; + struct commit *commit; + char *p = buf; + int i; + + for (i = 1; *p; i++) { + commit = parse_insn_line(p, opts); + if (!commit) + return error(_("Could not parse line %d."), i); + next = commit_list_append(commit, next); + p = strchrnul(p, '\n'); + if (*p) + p++; + } + if (!*todo_list) + return error(_("No commits parsed.")); + return 0; +} + +static void read_populate_todo(struct commit_list **todo_list, + struct replay_opts *opts) +{ + const char *todo_file = git_path(SEQ_TODO_FILE); + struct strbuf buf = STRBUF_INIT; + int fd, res; + + fd = open(todo_file, O_RDONLY); + if (fd < 0) + die_errno(_("Could not open %s."), todo_file); + if (strbuf_read(&buf, fd, 0) < 0) { + close(fd); + strbuf_release(&buf); + die(_("Could not read %s."), todo_file); + } + close(fd); + + res = parse_insn_buffer(buf.buf, todo_list, opts); + strbuf_release(&buf); + if (res) + die(_("Unusable instruction sheet: %s"), todo_file); +} + +static int populate_opts_cb(const char *key, const char *value, void *data) +{ + struct replay_opts *opts = data; + int error_flag = 1; + + if (!value) + error_flag = 0; + else if (!strcmp(key, "options.no-commit")) + opts->no_commit = git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.edit")) + opts->edit = git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.signoff")) + opts->signoff = git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.record-origin")) + opts->record_origin = git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.allow-ff")) + opts->allow_ff = git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.mainline")) + opts->mainline = git_config_int(key, value); + else if (!strcmp(key, "options.strategy")) + git_config_string(&opts->strategy, key, value); + else if (!strcmp(key, "options.strategy-option")) { + ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc); + opts->xopts[opts->xopts_nr++] = xstrdup(value); + } else + return error(_("Invalid key: %s"), key); + + if (!error_flag) + return error(_("Invalid value for %s: %s"), key, value); + + return 0; +} + +static void read_populate_opts(struct replay_opts **opts_ptr) +{ + const char *opts_file = git_path(SEQ_OPTS_FILE); + + if (!file_exists(opts_file)) + return; + if (git_config_from_file(populate_opts_cb, opts_file, *opts_ptr) < 0) + die(_("Malformed options sheet: %s"), opts_file); +} + +static void walk_revs_populate_todo(struct commit_list **todo_list, + struct replay_opts *opts) { struct rev_info revs; + struct commit *commit; + struct commit_list **next; - git_config(git_default_config, NULL); - me = action == REVERT ? "revert" : "cherry-pick"; - setenv(GIT_REFLOG_ACTION, me, 0); - parse_args(argc, argv); - - if (allow_ff) { - if (signoff) - die(_("cherry-pick --ff cannot be used with --signoff")); - if (no_commit) - die(_("cherry-pick --ff cannot be used with --no-commit")); - if (no_replay) - die(_("cherry-pick --ff cannot be used with -x")); - if (edit) - die(_("cherry-pick --ff cannot be used with --edit")); + prepare_revs(&revs, opts); + + next = todo_list; + while ((commit = get_revision(&revs))) + next = commit_list_append(commit, next); +} + +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); + else if (mkdir(seq_dir, 0777) < 0) + die_errno(_("Could not create sequencer directory '%s'."), seq_dir); + return 0; +} + +static void save_head(const char *head) +{ + const char *head_file = git_path(SEQ_HEAD_FILE); + static struct lock_file head_lock; + struct strbuf buf = STRBUF_INIT; + int fd; + + fd = hold_lock_file_for_update(&head_lock, head_file, LOCK_DIE_ON_ERROR); + strbuf_addf(&buf, "%s\n", head); + if (write_in_full(fd, buf.buf, buf.len) < 0) + die_errno(_("Could not write to %s."), head_file); + if (commit_lock_file(&head_lock) < 0) + die(_("Error wrapping up %s."), head_file); +} + +static void save_todo(struct commit_list *todo_list, struct replay_opts *opts) +{ + const char *todo_file = git_path(SEQ_TODO_FILE); + static struct lock_file todo_lock; + struct strbuf buf = STRBUF_INIT; + int fd; + + fd = hold_lock_file_for_update(&todo_lock, todo_file, LOCK_DIE_ON_ERROR); + if (format_todo(&buf, todo_list, opts) < 0) + die(_("Could not format %s."), todo_file); + if (write_in_full(fd, buf.buf, buf.len) < 0) { + strbuf_release(&buf); + die_errno(_("Could not write to %s."), todo_file); + } + if (commit_lock_file(&todo_lock) < 0) { + strbuf_release(&buf); + die(_("Error wrapping up %s."), todo_file); } + strbuf_release(&buf); +} - read_and_refresh_cache(me); +static void save_opts(struct replay_opts *opts) +{ + const char *opts_file = git_path(SEQ_OPTS_FILE); + + if (opts->no_commit) + git_config_set_in_file(opts_file, "options.no-commit", "true"); + if (opts->edit) + git_config_set_in_file(opts_file, "options.edit", "true"); + if (opts->signoff) + git_config_set_in_file(opts_file, "options.signoff", "true"); + if (opts->record_origin) + git_config_set_in_file(opts_file, "options.record-origin", "true"); + if (opts->allow_ff) + git_config_set_in_file(opts_file, "options.allow-ff", "true"); + if (opts->mainline) { + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, "%d", opts->mainline); + git_config_set_in_file(opts_file, "options.mainline", buf.buf); + strbuf_release(&buf); + } + if (opts->strategy) + git_config_set_in_file(opts_file, "options.strategy", opts->strategy); + if (opts->xopts) { + int i; + for (i = 0; i < opts->xopts_nr; i++) + git_config_set_multivar_in_file(opts_file, + "options.strategy-option", + opts->xopts[i], "^$", 0); + } +} - prepare_revs(&revs); +static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts) +{ + struct commit_list *cur; + int res; - while ((commit = get_revision(&revs))) { - int res = do_pick_commit(); - if (res) + setenv(GIT_REFLOG_ACTION, action_name(opts), 0); + if (opts->allow_ff) + assert(!(opts->signoff || opts->no_commit || + opts->record_origin || opts->edit)); + read_and_refresh_cache(opts); + + for (cur = todo_list; cur; cur = cur->next) { + save_todo(cur, opts); + res = do_pick_commit(cur->item, opts); + if (res) { + if (!cur->next) + /* + * An error was encountered while + * picking the last commit; the + * sequencer state is useless now -- + * the user simply needs to resolve + * the conflict and commit + */ + remove_sequencer_state(0); return res; + } } + /* + * Sequence of picks finished successfully; cleanup by + * removing the .git/sequencer directory + */ + remove_sequencer_state(1); return 0; } +static int pick_revisions(struct replay_opts *opts) +{ + struct commit_list *todo_list = NULL; + unsigned char sha1[20]; + + read_and_refresh_cache(opts); + + /* + * Decide what to do depending on the arguments; a fresh + * cherry-pick should be handled differently from an existing + * one that is being continued + */ + if (opts->subcommand == REPLAY_RESET) { + remove_sequencer_state(1); + return 0; + } else if (opts->subcommand == REPLAY_CONTINUE) { + if (!file_exists(git_path(SEQ_TODO_FILE))) + goto error; + 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 + */ + + 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); + } + 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) { + struct replay_opts opts; + int res; + + memset(&opts, 0, sizeof(opts)); if (isatty(0)) - edit = 1; - action = REVERT; - return revert_or_cherry_pick(argc, argv); + opts.edit = 1; + opts.action = REVERT; + git_config(git_default_config, NULL); + parse_args(argc, argv, &opts); + res = pick_revisions(&opts); + if (res < 0) + die(_("revert failed")); + return res; } int cmd_cherry_pick(int argc, const char **argv, const char *prefix) { - action = CHERRY_PICK; - return revert_or_cherry_pick(argc, argv); + struct replay_opts opts; + int res; + + memset(&opts, 0, sizeof(opts)); + opts.action = CHERRY_PICK; + git_config(git_default_config, NULL); + parse_args(argc, argv, &opts); + res = pick_revisions(&opts); + if (res < 0) + die(_("cherry-pick failed")); + return res; } @@ -1076,9 +1076,11 @@ extern int git_config_bool(const char *, const char *); extern int git_config_maybe_bool(const char *, const char *); extern int git_config_string(const char **, const char *, const char *); extern int git_config_pathname(const char **, const char *, const char *); +extern int git_config_set_in_file(const char *, const char *, const char *); extern int git_config_set(const char *, const char *); extern int git_config_parse_key(const char *, char **, int *); extern int git_config_set_multivar(const char *, const char *, const char *, int); +extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int); extern int git_config_rename_section(const char *, const char *); extern const char *git_etc_gitconfig(void); extern int check_repository_format_version(const char *var, const char *value, void *cb); @@ -1095,6 +1095,12 @@ contline: return offset; } +int git_config_set_in_file(const char *config_filename, + const char *key, const char *value) +{ + return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); +} + int git_config_set(const char *key, const char *value) { return git_config_set_multivar(key, value, NULL, 0); @@ -1192,19 +1198,14 @@ out_free_ret_1: * - the config file is removed and the lock file rename()d to it. * */ -int git_config_set_multivar(const char *key, const char *value, - const char *value_regex, int multi_replace) +int git_config_set_multivar_in_file(const char *config_filename, + const char *key, const char *value, + const char *value_regex, int multi_replace) { int fd = -1, in_fd; int ret; - char *config_filename; struct lock_file *lock = NULL; - if (config_exclusive_filename) - config_filename = xstrdup(config_exclusive_filename); - else - config_filename = git_pathdup("config"); - /* parse-key returns negative; flip the sign to feed exit(3) */ ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); if (ret) @@ -1381,7 +1382,6 @@ int git_config_set_multivar(const char *key, const char *value, out_free: if (lock) rollback_lock_file(lock); - free(config_filename); return ret; write_err_out: @@ -1390,6 +1390,24 @@ write_err_out: } +int git_config_set_multivar(const char *key, const char *value, + const char *value_regex, int multi_replace) +{ + const char *config_filename; + char *buf = NULL; + int ret; + + if (config_exclusive_filename) + config_filename = config_exclusive_filename; + else + config_filename = buf = git_pathdup("config"); + + ret = git_config_set_multivar_in_file(config_filename, key, value, + value_regex, multi_replace); + free(buf); + return ret; +} + static int section_name_match (const char *buf, const char *name) { int i = 0, j = 0, dot = 0; diff --git a/sequencer.c b/sequencer.c new file mode 100644 index 000000000..bc2c046aa --- /dev/null +++ b/sequencer.c @@ -0,0 +1,19 @@ +#include "cache.h" +#include "sequencer.h" +#include "strbuf.h" +#include "dir.h" + +void remove_sequencer_state(int aggressive) +{ + struct strbuf seq_dir = STRBUF_INIT; + struct strbuf seq_old_dir = STRBUF_INIT; + + strbuf_addf(&seq_dir, "%s", git_path(SEQ_DIR)); + strbuf_addf(&seq_old_dir, "%s", git_path(SEQ_OLD_DIR)); + remove_dir_recursively(&seq_old_dir, 0); + rename(git_path(SEQ_DIR), git_path(SEQ_OLD_DIR)); + if (aggressive) + remove_dir_recursively(&seq_old_dir, 0); + strbuf_release(&seq_dir); + strbuf_release(&seq_old_dir); +} diff --git a/sequencer.h b/sequencer.h new file mode 100644 index 000000000..905d29501 --- /dev/null +++ b/sequencer.h @@ -0,0 +1,20 @@ +#ifndef SEQUENCER_H +#define SEQUENCER_H + +#define SEQ_DIR "sequencer" +#define SEQ_OLD_DIR "sequencer-old" +#define SEQ_HEAD_FILE "sequencer/head" +#define SEQ_TODO_FILE "sequencer/todo" +#define SEQ_OPTS_FILE "sequencer/opts" + +/* + * Removes SEQ_OLD_DIR and renames SEQ_DIR to SEQ_OLD_DIR, ignoring + * any errors. Intended to be used by 'git reset'. + * + * With the aggressive flag, it additionally removes SEQ_OLD_DIR, + * ignoring any errors. Inteded to be used by the sequencer's + * '--reset' subcommand. + */ +void remove_sequencer_state(int aggressive); + +#endif diff --git a/t/t3510-cherry-pick-sequence.sh b/t/t3510-cherry-pick-sequence.sh new file mode 100755 index 000000000..3bca2b3dd --- /dev/null +++ b/t/t3510-cherry-pick-sequence.sh @@ -0,0 +1,214 @@ +#!/bin/sh + +test_description='Test cherry-pick continuation features + + + anotherpick: rewrites foo to d + + picked: rewrites foo to c + + unrelatedpick: rewrites unrelated to reallyunrelated + + base: rewrites foo to b + + initial: writes foo as a, unrelated as unrelated + +' + +. ./test-lib.sh + +pristine_detach () { + git cherry-pick --reset && + git checkout -f "$1^0" && + git read-tree -u --reset HEAD && + git clean -d -f -f -q -x +} + +test_expect_success setup ' + echo unrelated >unrelated && + git add unrelated && + test_commit initial foo a && + test_commit base foo b && + test_commit unrelatedpick unrelated reallyunrelated && + test_commit picked foo c && + test_commit anotherpick foo d && + git config advice.detachedhead false + +' + +test_expect_success 'cherry-pick persists data on failure' ' + pristine_detach initial && + test_must_fail git cherry-pick -s base..anotherpick && + test_path_is_dir .git/sequencer && + test_path_is_file .git/sequencer/head && + test_path_is_file .git/sequencer/todo && + test_path_is_file .git/sequencer/opts +' + +test_expect_success 'cherry-pick persists opts correctly' ' + pristine_detach initial && + test_must_fail git cherry-pick -s -m 1 --strategy=recursive -X patience -X ours base..anotherpick && + test_path_is_dir .git/sequencer && + test_path_is_file .git/sequencer/head && + test_path_is_file .git/sequencer/todo && + test_path_is_file .git/sequencer/opts && + echo "true" >expect && + git config --file=.git/sequencer/opts --get-all options.signoff >actual && + test_cmp expect actual && + echo "1" >expect && + git config --file=.git/sequencer/opts --get-all options.mainline >actual && + test_cmp expect actual && + echo "recursive" >expect && + git config --file=.git/sequencer/opts --get-all options.strategy >actual && + test_cmp expect actual && + cat >expect <<-\EOF && + patience + ours + EOF + git config --file=.git/sequencer/opts --get-all options.strategy-option >actual && + test_cmp expect actual +' + +test_expect_success 'cherry-pick cleans up sequencer state upon success' ' + pristine_detach initial && + git cherry-pick initial..picked && + test_path_is_missing .git/sequencer +' + +test_expect_success '--reset does not complain when no cherry-pick is in progress' ' + pristine_detach initial && + git cherry-pick --reset +' + +test_expect_success '--reset cleans up sequencer state' ' + pristine_detach initial && + test_must_fail git cherry-pick base..picked && + git cherry-pick --reset && + test_path_is_missing .git/sequencer +' + +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 && + test_path_is_missing .git/sequencer && + echo "resolved" >foo && + git add foo && + git commit && + { + git rev-list HEAD | + git diff-tree --root --stdin | + sed "s/$_x40/OBJID/g" + } >actual && + cat >expect <<-\EOF && + OBJID + :100644 100644 OBJID OBJID M foo + OBJID + :100644 100644 OBJID OBJID M unrelated + OBJID + :000000 100644 OBJID OBJID A foo + :000000 100644 OBJID OBJID A unrelated + EOF + test_cmp expect actual +' + +test_expect_success 'cherry-pick does not implicitly stomp an existing operation' ' + pristine_detach initial && + test_must_fail git cherry-pick base..anotherpick && + test-chmtime -v +0 .git/sequencer >expect && + test_must_fail git cherry-pick unrelatedpick && + test-chmtime -v +0 .git/sequencer >actual && + test_cmp expect actual +' + +test_expect_success '--continue complains when no cherry-pick is in progress' ' + pristine_detach initial && + test_must_fail git cherry-pick --continue +' + +test_expect_success '--continue complains when there are unresolved conflicts' ' + pristine_detach initial && + test_must_fail git cherry-pick base..anotherpick && + test_must_fail git cherry-pick --continue +' + +test_expect_success '--continue continues after conflicts are resolved' ' + pristine_detach initial && + test_must_fail git cherry-pick base..anotherpick && + echo "c" >foo && + git add foo && + git commit && + git cherry-pick --continue && + test_path_is_missing .git/sequencer && + { + git rev-list HEAD | + git diff-tree --root --stdin | + sed "s/$_x40/OBJID/g" + } >actual && + cat >expect <<-\EOF && + OBJID + :100644 100644 OBJID OBJID M foo + OBJID + :100644 100644 OBJID OBJID M foo + OBJID + :100644 100644 OBJID OBJID M unrelated + OBJID + :000000 100644 OBJID OBJID A foo + :000000 100644 OBJID OBJID A unrelated + EOF + test_cmp expect actual +' + +test_expect_success '--continue respects opts' ' + pristine_detach initial && + test_must_fail git cherry-pick -x base..anotherpick && + echo "c" >foo && + git add foo && + git commit && + git cherry-pick --continue && + test_path_is_missing .git/sequencer && + git cat-file commit HEAD >anotherpick_msg && + git cat-file commit HEAD~1 >picked_msg && + git cat-file commit HEAD~2 >unrelatedpick_msg && + git cat-file commit HEAD~3 >initial_msg && + test_must_fail grep "cherry picked from" initial_msg && + grep "cherry picked from" unrelatedpick_msg && + grep "cherry picked from" picked_msg && + grep "cherry picked from" anotherpick_msg +' + +test_expect_success '--signoff is not automatically propagated to resolved conflict' ' + pristine_detach initial && + test_must_fail git cherry-pick --signoff base..anotherpick && + echo "c" >foo && + git add foo && + git commit && + git cherry-pick --continue && + test_path_is_missing .git/sequencer && + git cat-file commit HEAD >anotherpick_msg && + git cat-file commit HEAD~1 >picked_msg && + git cat-file commit HEAD~2 >unrelatedpick_msg && + git cat-file commit HEAD~3 >initial_msg && + test_must_fail grep "Signed-off-by:" initial_msg && + grep "Signed-off-by:" unrelatedpick_msg && + test_must_fail grep "Signed-off-by:" picked_msg && + grep "Signed-off-by:" anotherpick_msg +' + +test_expect_success 'malformed instruction sheet 1' ' + pristine_detach initial && + test_must_fail git cherry-pick base..anotherpick && + echo "resolved" >foo && + git add foo && + git commit && + sed "s/pick /pick/" .git/sequencer/todo >new_sheet && + cp new_sheet .git/sequencer/todo && + test_must_fail git cherry-pick --continue +' + +test_expect_success 'malformed instruction sheet 2' ' + pristine_detach initial && + test_must_fail git cherry-pick base..anotherpick && + echo "resolved" >foo && + git add foo && + git commit && + sed "s/pick/revert/" .git/sequencer/todo >new_sheet && + cp new_sheet .git/sequencer/todo && + test_must_fail git cherry-pick --continue +' + +test_done diff --git a/t/t7106-reset-sequence.sh b/t/t7106-reset-sequence.sh new file mode 100755 index 000000000..4956caaf8 --- /dev/null +++ b/t/t7106-reset-sequence.sh @@ -0,0 +1,44 @@ +#!/bin/sh + +test_description='Test interaction of reset --hard with sequencer + + + anotherpick: rewrites foo to d + + picked: rewrites foo to c + + unrelatedpick: rewrites unrelated to reallyunrelated + + base: rewrites foo to b + + initial: writes foo as a, unrelated as unrelated +' + +. ./test-lib.sh + +pristine_detach () { + git cherry-pick --reset && + git checkout -f "$1^0" && + git read-tree -u --reset HEAD && + git clean -d -f -f -q -x +} + +test_expect_success setup ' + echo unrelated >unrelated && + git add unrelated && + test_commit initial foo a && + test_commit base foo b && + test_commit unrelatedpick unrelated reallyunrelated && + test_commit picked foo c && + test_commit anotherpick foo d && + git config advice.detachedhead false + +' + +test_expect_success 'reset --hard cleans up sequencer state, providing one-level undo' ' + pristine_detach initial && + test_must_fail git cherry-pick base..anotherpick && + test_path_is_dir .git/sequencer && + git reset --hard && + test_path_is_missing .git/sequencer && + test_path_is_dir .git/sequencer-old && + git reset --hard && + test_path_is_missing .git/sequencer-old +' + +test_done |