diff options
Diffstat (limited to 'sequencer.c')
| -rw-r--r-- | sequencer.c | 432 |
1 files changed, 283 insertions, 149 deletions
diff --git a/sequencer.c b/sequencer.c index 5e0c15a16b..4e14fa6541 100644 --- a/sequencer.c +++ b/sequencer.c @@ -15,10 +15,8 @@ #include "pager.h" #include "commit.h" #include "sequencer.h" -#include "tag.h" #include "run-command.h" #include "hook.h" -#include "exec-cmd.h" #include "utf8.h" #include "cache-tree.h" #include "diff.h" @@ -39,7 +37,6 @@ #include "notes-utils.h" #include "sigchain.h" #include "unpack-trees.h" -#include "worktree.h" #include "oidmap.h" #include "oidset.h" #include "commit-slab.h" @@ -51,6 +48,15 @@ #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" +/* + * To accommodate common filesystem limitations, where the loose refs' file + * names must not exceed `NAME_MAX`, the labels generated by `git rebase + * --rebase-merges` need to be truncated if the corresponding commit subjects + * are too long. + * Add some margin to stay clear from reaching `NAME_MAX`. + */ +#define GIT_MAX_LABEL_LENGTH ((NAME_MAX) - (LOCK_SUFFIX_LEN) - 16) + static const char sign_off_header[] = "Signed-off-by: "; static const char cherry_picked_prefix[] = "(cherry picked from commit "; @@ -139,6 +145,11 @@ static GIT_PATH_FUNC(rebase_path_amend, "rebase-merge/amend") */ static GIT_PATH_FUNC(rebase_path_stopped_sha, "rebase-merge/stopped-sha") /* + * When we stop for the user to resolve conflicts this file contains + * the patch of the commit that is being picked. + */ +static GIT_PATH_FUNC(rebase_path_patch, "rebase-merge/patch") +/* * For the post-rewrite hook, we make a list of rewritten commits and * their new sha1s. The rewritten-pending list keeps the sha1s of * commits that have been processed, but not committed yet, @@ -224,34 +235,29 @@ static int git_sequencer_config(const char *k, const char *v, const struct config_context *ctx, void *cb) { struct replay_opts *opts = cb; - int status; if (!strcmp(k, "commit.cleanup")) { - const char *s; - - status = git_config_string(&s, k, v); - if (status) - return status; + if (!v) + return config_error_nonbool(k); - if (!strcmp(s, "verbatim")) { + if (!strcmp(v, "verbatim")) { opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_NONE; opts->explicit_cleanup = 1; - } else if (!strcmp(s, "whitespace")) { + } else if (!strcmp(v, "whitespace")) { opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_SPACE; opts->explicit_cleanup = 1; - } else if (!strcmp(s, "strip")) { + } else if (!strcmp(v, "strip")) { opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_ALL; opts->explicit_cleanup = 1; - } else if (!strcmp(s, "scissors")) { + } else if (!strcmp(v, "scissors")) { opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_SCISSORS; opts->explicit_cleanup = 1; } else { warning(_("invalid commit message cleanup mode '%s'"), - s); + v); } - free((char *)s); - return status; + return 0; } if (!strcmp(k, "commit.gpgsign")) { @@ -326,12 +332,12 @@ static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob, sb->buf[sb->len - ignore_footer] = '\0'; } - trailer_info_get(&info, sb->buf, &opts); + trailer_info_get(&opts, sb->buf, &info); if (ignore_footer) sb->buf[sb->len - ignore_footer] = saved_char; - if (info.trailer_start == info.trailer_end) + if (info.trailer_block_start == info.trailer_block_end) return 0; for (i = 0; i < info.trailer_nr; i++) @@ -424,10 +430,9 @@ struct commit_message { const char *message; }; -static const char *short_commit_name(struct commit *commit) +static const char *short_commit_name(struct repository *r, struct commit *commit) { - return repo_find_unique_abbrev(the_repository, &commit->object.oid, - DEFAULT_ABBREV); + return repo_find_unique_abbrev(r, &commit->object.oid, DEFAULT_ABBREV); } static int get_message(struct commit *commit, struct commit_message *out) @@ -437,7 +442,7 @@ static int get_message(struct commit *commit, struct commit_message *out) out->message = repo_logmsg_reencode(the_repository, commit, NULL, get_commit_output_encoding()); - abbrev = short_commit_name(commit); + abbrev = short_commit_name(the_repository, commit); subject_len = find_commit_subject(out->message, &subject); @@ -456,10 +461,22 @@ static void free_message(struct commit *commit, struct commit_message *msg) repo_unuse_commit_buffer(the_repository, commit, msg->message); } +const char *rebase_resolvemsg = +N_("Resolve all conflicts manually, mark them as resolved with\n" +"\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n" +"You can instead skip this commit: run \"git rebase --skip\".\n" +"To abort and get back to the state before \"git rebase\", run " +"\"git rebase --abort\"."); + static void print_advice(struct repository *r, int show_hint, struct replay_opts *opts) { - char *msg = getenv("GIT_CHERRY_PICK_HELP"); + const char *msg; + + if (is_rebase_i(opts)) + msg = rebase_resolvemsg; + else + msg = getenv("GIT_CHERRY_PICK_HELP"); if (msg) { advise("%s\n", msg); @@ -469,7 +486,7 @@ static void print_advice(struct repository *r, int show_hint, * of the commit itself so remove CHERRY_PICK_HEAD */ refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD", - NULL, 0); + NULL, REF_NO_DEREF); return; } @@ -702,6 +719,8 @@ static int do_recursive_merge(struct repository *r, o.show_rename_progress = 1; head_tree = parse_tree_indirect(head); + if (!head_tree) + return error(_("unable to read tree (%s)"), oid_to_hex(head)); next_tree = next ? repo_get_commit_tree(r, next) : empty_tree(r); base_tree = base ? repo_get_commit_tree(r, base) : empty_tree(r); @@ -1662,7 +1681,7 @@ static int do_commit(struct repository *r, strbuf_release(&sb); if (!res) { refs_delete_ref(get_main_ref_store(r), "", - "CHERRY_PICK_HEAD", NULL, 0); + "CHERRY_PICK_HEAD", NULL, REF_NO_DEREF); unlink(git_path_merge_msg(r)); if (!is_rebase_i(opts)) print_commit_summary(r, NULL, &oid, @@ -2249,6 +2268,8 @@ static int do_pick_commit(struct repository *r, */ if (command == TODO_REVERT) { + const char *orig_subject; + base = commit; base_label = msg.label; next = parent; @@ -2256,6 +2277,15 @@ static int do_pick_commit(struct repository *r, if (opts->commit_use_reference) { strbuf_addstr(&msgbuf, "# *** SAY WHY WE ARE REVERTING ON THE TITLE LINE ***"); + } else if (skip_prefix(msg.subject, "Revert \"", &orig_subject) && + /* + * We don't touch pre-existing repeated reverts, because + * theoretically these can be nested arbitrarily deeply, + * thus requiring excessive complexity to deal with. + */ + !starts_with(orig_subject, "Revert \"")) { + strbuf_addstr(&msgbuf, "Reapply \""); + strbuf_addstr(&msgbuf, orig_subject); } else { strbuf_addstr(&msgbuf, "Revert \""); strbuf_addstr(&msgbuf, msg.subject); @@ -2311,7 +2341,7 @@ static int do_pick_commit(struct repository *r, const char *dest = git_path_squash_msg(r); unlink(dest); if (copy_file(dest, rebase_path_squash_msg(), 0666)) { - res = error(_("could not rename '%s' to '%s'"), + res = error(_("could not copy '%s' to '%s'"), rebase_path_squash_msg(), dest); goto leave; } @@ -2374,7 +2404,7 @@ static int do_pick_commit(struct repository *r, error(command == TODO_REVERT ? _("could not revert %s... %s") : _("could not apply %s... %s"), - short_commit_name(commit), msg.subject); + short_commit_name(r, commit), msg.subject); print_advice(r, res == 1, opts); repo_rerere(r, opts->allow_rerere_auto); goto leave; @@ -2390,9 +2420,10 @@ static int do_pick_commit(struct repository *r, } else if (allow == 2) { drop_commit = 1; refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD", - NULL, 0); + NULL, REF_NO_DEREF); unlink(git_path_merge_msg(r)); - unlink(git_path_auto_merge(r)); + refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE", + NULL, REF_NO_DEREF); fprintf(stderr, _("dropping %s %s -- patch contents already upstream\n"), oid_to_hex(&commit->object.oid), msg.subject); @@ -2641,7 +2672,7 @@ static int parse_insn_line(struct repository *r, struct todo_item *item, return item->commit ? 0 : -1; } -int sequencer_get_last_command(struct repository *r, enum replay_action *action) +int sequencer_get_last_command(struct repository *r UNUSED, enum replay_action *action) { const char *todo_file, *bol; struct strbuf buf = STRBUF_INIT; @@ -2786,7 +2817,7 @@ void sequencer_post_commit_cleanup(struct repository *r, int verbose) if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) { if (!refs_delete_ref(get_main_ref_store(r), "", - "CHERRY_PICK_HEAD", NULL, 0) && + "CHERRY_PICK_HEAD", NULL, REF_NO_DEREF) && verbose) warning(_("cancelling a cherry picking in progress")); opts.action = REPLAY_PICK; @@ -2795,14 +2826,15 @@ void sequencer_post_commit_cleanup(struct repository *r, int verbose) if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) { if (!refs_delete_ref(get_main_ref_store(r), "", "REVERT_HEAD", - NULL, 0) && + NULL, REF_NO_DEREF) && verbose) warning(_("cancelling a revert in progress")); opts.action = REPLAY_REVERT; need_cleanup = 1; } - unlink(git_path_auto_merge(r)); + refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE", + NULL, REF_NO_DEREF); if (!need_cleanup) return; @@ -3163,7 +3195,8 @@ static int walk_revs_populate_todo(struct todo_list *todo_list, item->offset_in_buf = todo_list->buf.len; subject_len = find_commit_subject(commit_buffer, &subject); strbuf_addf(&todo_list->buf, "%s %s %.*s\n", command_string, - short_commit_name(commit), subject_len, subject); + short_commit_name(the_repository, commit), + subject_len, subject); repo_unuse_commit_buffer(the_repository, commit, commit_buffer); } @@ -3392,7 +3425,8 @@ give_advice: return -1; } -static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) +static int save_todo(struct todo_list *todo_list, struct replay_opts *opts, + int reschedule) { struct lock_file todo_lock = LOCK_INIT; const char *todo_path = get_todo_path(opts); @@ -3402,7 +3436,7 @@ static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) * rebase -i writes "git-rebase-todo" without the currently executing * command, appending it to "done" instead. */ - if (is_rebase_i(opts)) + if (is_rebase_i(opts) && !reschedule) next++; fd = hold_lock_file_for_update(&todo_lock, todo_path, 0); @@ -3415,7 +3449,7 @@ static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) if (commit_lock_file(&todo_lock) < 0) return error(_("failed to finalize '%s'"), todo_path); - if (is_rebase_i(opts) && next > 0) { + if (is_rebase_i(opts) && !reschedule && next > 0) { const char *done = rebase_path_done(); int fd = open(done, O_CREAT | O_WRONLY | O_APPEND, 0666); int ret = 0; @@ -3496,18 +3530,19 @@ static int make_patch(struct repository *r, struct commit *commit, struct replay_opts *opts) { - struct strbuf buf = STRBUF_INIT; struct rev_info log_tree_opt; const char *subject; char hex[GIT_MAX_HEXSZ + 1]; int res = 0; + if (!is_rebase_i(opts)) + BUG("make_patch should only be called when rebasing"); + oid_to_hex_r(hex, &commit->object.oid); if (write_message(hex, strlen(hex), rebase_path_stopped_sha(), 1) < 0) return -1; res |= write_rebase_head(&commit->object.oid); - strbuf_addf(&buf, "%s/patch", get_dir(opts)); memset(&log_tree_opt, 0, sizeof(log_tree_opt)); repo_init_revisions(r, &log_tree_opt, NULL); log_tree_opt.abbrev = 0; @@ -3515,28 +3550,26 @@ static int make_patch(struct repository *r, log_tree_opt.diffopt.output_format = DIFF_FORMAT_PATCH; log_tree_opt.disable_stdin = 1; log_tree_opt.no_commit_id = 1; - log_tree_opt.diffopt.file = fopen(buf.buf, "w"); + log_tree_opt.diffopt.file = fopen(rebase_path_patch(), "w"); log_tree_opt.diffopt.use_color = GIT_COLOR_NEVER; if (!log_tree_opt.diffopt.file) - res |= error_errno(_("could not open '%s'"), buf.buf); + res |= error_errno(_("could not open '%s'"), + rebase_path_patch()); else { res |= log_tree_commit(&log_tree_opt, commit); fclose(log_tree_opt.diffopt.file); } - strbuf_reset(&buf); - strbuf_addf(&buf, "%s/message", get_dir(opts)); - if (!file_exists(buf.buf)) { + if (!file_exists(rebase_path_message())) { const char *encoding = get_commit_output_encoding(); const char *commit_buffer = repo_logmsg_reencode(r, commit, NULL, encoding); find_commit_subject(commit_buffer, &subject); - res |= write_message(subject, strlen(subject), buf.buf, 1); + res |= write_message(subject, strlen(subject), rebase_path_message(), 1); repo_unuse_commit_buffer(r, commit, commit_buffer); } - strbuf_release(&buf); release_revisions(&log_tree_opt); return res; @@ -3584,7 +3617,7 @@ static int error_with_patch(struct repository *r, } else if (exit_code) { if (commit) fprintf_ln(stderr, _("Could not apply %s... %.*s"), - short_commit_name(commit), subject_len, subject); + short_commit_name(r, commit), subject_len, subject); else /* * We don't have the hash of the parent so @@ -3622,6 +3655,7 @@ static int do_exec(struct repository *r, const char *command_line) fprintf(stderr, _("Executing: %s\n"), command_line); cmd.use_shell = 1; strvec_push(&cmd.args, command_line); + strvec_push(&cmd.env, "GIT_CHERRY_PICK_HELP"); status = run_command(&cmd); /* force re-reading of the cache */ @@ -3862,6 +3896,8 @@ static int do_reset(struct repository *r, } tree = parse_tree_indirect(&oid); + if (!tree) + return error(_("unable to read tree (%s)"), oid_to_hex(&oid)); prime_cache_tree(r, r->index, tree); if (write_locked_index(r->index, &lock, COMMIT_LOCK) < 0) @@ -3888,7 +3924,7 @@ static int do_merge(struct repository *r, int run_commit_flags = 0; struct strbuf ref_name = STRBUF_INIT; struct commit *head_commit, *merge_commit, *i; - struct commit_list *bases, *j; + struct commit_list *bases = NULL, *j; struct commit_list *to_merge = NULL, **tail = &to_merge; const char *strategy = !opts->xopts.nr && (!opts->strategy || @@ -4099,7 +4135,7 @@ static int do_merge(struct repository *r, strbuf_release(&ref_name); refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD", - NULL, 0); + NULL, REF_NO_DEREF); rollback_lock_file(&lock); ret = run_command(&cmd); @@ -4114,7 +4150,11 @@ static int do_merge(struct repository *r, } merge_commit = to_merge->item; - bases = repo_get_merge_bases(r, head_commit, merge_commit); + if (repo_get_merge_bases(r, head_commit, merge_commit, &bases) < 0) { + ret = -1; + goto leave_merge; + } + if (bases && oideq(&merge_commit->object.oid, &bases->item->object.oid)) { ret = 0; @@ -4154,6 +4194,7 @@ static int do_merge(struct repository *r, if (ret < 0) { error(_("could not even attempt to merge '%.*s'"), merge_arg_len, arg); + unlink(git_path_merge_msg(r)); goto leave_merge; } /* @@ -4443,12 +4484,17 @@ static enum todo_command peek_command(struct todo_list *todo_list, int offset) return -1; } -void create_autostash(struct repository *r, const char *path) +static void create_autostash_internal(struct repository *r, + const char *path, + const char *refname) { struct strbuf buf = STRBUF_INIT; struct lock_file lock_file = LOCK_INIT; int fd; + if (path && refname) + BUG("can only pass path or refname"); + fd = repo_hold_locked_index(r, &lock_file, 0); refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL); if (0 <= fd) @@ -4475,10 +4521,16 @@ void create_autostash(struct repository *r, const char *path) strbuf_reset(&buf); strbuf_add_unique_abbrev(&buf, &oid, DEFAULT_ABBREV); - if (safe_create_leading_directories_const(path)) - die(_("Could not create directory for '%s'"), - path); - write_file(path, "%s", oid_to_hex(&oid)); + if (path) { + if (safe_create_leading_directories_const(path)) + die(_("Could not create directory for '%s'"), + path); + write_file(path, "%s", oid_to_hex(&oid)); + } else { + refs_update_ref(get_main_ref_store(r), "", refname, + &oid, null_oid(), 0, UPDATE_REFS_DIE_ON_ERR); + } + printf(_("Created autostash: %s\n"), buf.buf); if (reset_head(r, &ropts) < 0) die(_("could not reset --hard")); @@ -4489,6 +4541,16 @@ void create_autostash(struct repository *r, const char *path) strbuf_release(&buf); } +void create_autostash(struct repository *r, const char *path) +{ + create_autostash_internal(r, path, NULL); +} + +void create_autostash_ref(struct repository *r, const char *refname) +{ + create_autostash_internal(r, NULL, refname); +} + static int apply_save_autostash_oid(const char *stash_oid, int attempt_apply) { struct child_process child = CHILD_PROCESS_INIT; @@ -4566,6 +4628,41 @@ int apply_autostash_oid(const char *stash_oid) return apply_save_autostash_oid(stash_oid, 1); } +static int apply_save_autostash_ref(struct repository *r, const char *refname, + int attempt_apply) +{ + struct object_id stash_oid; + char stash_oid_hex[GIT_MAX_HEXSZ + 1]; + int flag, ret; + + if (!refs_ref_exists(get_main_ref_store(r), refname)) + return 0; + + if (!refs_resolve_ref_unsafe(get_main_ref_store(r), refname, + RESOLVE_REF_READING, &stash_oid, &flag)) + return -1; + if (flag & REF_ISSYMREF) + return error(_("autostash reference is a symref")); + + oid_to_hex_r(stash_oid_hex, &stash_oid); + ret = apply_save_autostash_oid(stash_oid_hex, attempt_apply); + + refs_delete_ref(get_main_ref_store(r), "", refname, + &stash_oid, REF_NO_DEREF); + + return ret; +} + +int save_autostash_ref(struct repository *r, const char *refname) +{ + return apply_save_autostash_ref(r, refname, 0); +} + +int apply_autostash_ref(struct repository *r, const char *refname) +{ + return apply_save_autostash_ref(r, refname, 1); +} + static int checkout_onto(struct repository *r, struct replay_opts *opts, const char *onto_name, const struct object_id *onto, const struct object_id *orig_head) @@ -4641,6 +4738,68 @@ N_("Could not execute the todo command\n" " git rebase --edit-todo\n" " git rebase --continue\n"); +static int pick_one_commit(struct repository *r, + struct todo_list *todo_list, + struct replay_opts *opts, + int *check_todo, int* reschedule) +{ + int res; + struct todo_item *item = todo_list->items + todo_list->current; + const char *arg = todo_item_get_arg(todo_list, item); + if (is_rebase_i(opts)) + opts->reflog_message = reflog_message( + opts, command_to_string(item->command), NULL); + + res = do_pick_commit(r, item, opts, is_final_fixup(todo_list), + check_todo); + if (is_rebase_i(opts) && res < 0) { + /* Reschedule */ + *reschedule = 1; + return -1; + } + if (item->command == TODO_EDIT) { + struct commit *commit = item->commit; + if (!res) { + if (!opts->verbose) + term_clear_line(); + fprintf(stderr, _("Stopped at %s... %.*s\n"), + short_commit_name(r, commit), item->arg_len, arg); + } + return error_with_patch(r, commit, + arg, item->arg_len, opts, res, !res); + } + if (is_rebase_i(opts) && !res) + record_in_rewritten(&item->commit->object.oid, + peek_command(todo_list, 1)); + if (res && is_fixup(item->command)) { + if (res == 1) + intend_to_amend(); + return error_failed_squash(r, item->commit, opts, + item->arg_len, arg); + } else if (res && is_rebase_i(opts) && item->commit) { + int to_amend = 0; + struct object_id oid; + + /* + * If we are rewording and have either + * fast-forwarded already, or are about to + * create a new root commit, we want to amend, + * otherwise we do not. + */ + if (item->command == TODO_REWORD && + !repo_get_oid(r, "HEAD", &oid) && + (oideq(&item->commit->object.oid, &oid) || + (opts->have_squash_onto && + oideq(&opts->squash_onto, &oid)))) + to_amend = 1; + + return res | error_with_patch(r, item->commit, + arg, item->arg_len, opts, + res, to_amend); + } + return res; +} + static int pick_commits(struct repository *r, struct todo_list *todo_list, struct replay_opts *opts) @@ -4656,12 +4815,17 @@ static int pick_commits(struct repository *r, if (read_and_refresh_cache(r, opts)) return -1; + unlink(rebase_path_message()); + unlink(rebase_path_stopped_sha()); + unlink(rebase_path_amend()); + unlink(rebase_path_patch()); + while (todo_list->current < todo_list->nr) { struct todo_item *item = todo_list->items + todo_list->current; const char *arg = todo_item_get_arg(todo_list, item); int check_todo = 0; - if (save_todo(todo_list, opts)) + if (save_todo(todo_list, opts, reschedule)) return -1; if (is_rebase_i(opts)) { if (item->command != TODO_COMMENT) { @@ -4679,13 +4843,12 @@ static int pick_commits(struct repository *r, todo_list->total_nr, opts->verbose ? "\n" : "\r"); } - unlink(rebase_path_message()); unlink(rebase_path_author_script()); - unlink(rebase_path_stopped_sha()); - unlink(rebase_path_amend()); unlink(git_path_merge_head(r)); - unlink(git_path_auto_merge(r)); - delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); + refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE", + NULL, REF_NO_DEREF); + refs_delete_ref(get_main_ref_store(r), "", "REBASE_HEAD", + NULL, REF_NO_DEREF); if (item->command == TODO_BREAK) { if (!opts->verbose) @@ -4694,66 +4857,10 @@ static int pick_commits(struct repository *r, } } if (item->command <= TODO_SQUASH) { - if (is_rebase_i(opts)) - opts->reflog_message = reflog_message(opts, - command_to_string(item->command), NULL); - - res = do_pick_commit(r, item, opts, - is_final_fixup(todo_list), - &check_todo); - if (is_rebase_i(opts) && res < 0) { - /* Reschedule */ - advise(_(rescheduled_advice), - get_item_line_length(todo_list, - todo_list->current), - get_item_line(todo_list, - todo_list->current)); - todo_list->current--; - if (save_todo(todo_list, opts)) - return -1; - } - if (item->command == TODO_EDIT) { - struct commit *commit = item->commit; - if (!res) { - if (!opts->verbose) - term_clear_line(); - fprintf(stderr, - _("Stopped at %s... %.*s\n"), - short_commit_name(commit), - item->arg_len, arg); - } - return error_with_patch(r, commit, - arg, item->arg_len, opts, res, !res); - } - if (is_rebase_i(opts) && !res) - record_in_rewritten(&item->commit->object.oid, - peek_command(todo_list, 1)); - if (res && is_fixup(item->command)) { - if (res == 1) - intend_to_amend(); - return error_failed_squash(r, item->commit, opts, - item->arg_len, arg); - } else if (res && is_rebase_i(opts) && item->commit) { - int to_amend = 0; - struct object_id oid; - - /* - * If we are rewording and have either - * fast-forwarded already, or are about to - * create a new root commit, we want to amend, - * otherwise we do not. - */ - if (item->command == TODO_REWORD && - !repo_get_oid(r, "HEAD", &oid) && - (oideq(&item->commit->object.oid, &oid) || - (opts->have_squash_onto && - oideq(&opts->squash_onto, &oid)))) - to_amend = 1; - - return res | error_with_patch(r, item->commit, - arg, item->arg_len, opts, - res, to_amend); - } + res = pick_one_commit(r, todo_list, opts, &check_todo, + &reschedule); + if (!res && item->command == TODO_EDIT) + return 0; } else if (item->command == TODO_EXEC) { char *end_of_arg = (char *)(arg + item->arg_len); int saved = *end_of_arg; @@ -4801,32 +4908,25 @@ static int pick_commits(struct repository *r, get_item_line_length(todo_list, todo_list->current), get_item_line(todo_list, todo_list->current)); - todo_list->current--; - if (save_todo(todo_list, opts)) + if (save_todo(todo_list, opts, reschedule)) return -1; if (item->commit) - return error_with_patch(r, - item->commit, - arg, item->arg_len, - opts, res, 0); + write_rebase_head(&item->commit->object.oid); } else if (is_rebase_i(opts) && check_todo && !res && reread_todo_if_changed(r, todo_list, opts)) { return -1; } - todo_list->current++; if (res) return res; + + todo_list->current++; } if (is_rebase_i(opts)) { struct strbuf head_ref = STRBUF_INIT, buf = STRBUF_INIT; struct stat st; - /* Stopped in the middle, as planned? */ - if (todo_list->current < todo_list->nr) - return 0; - if (read_oneliner(&head_ref, rebase_path_head_name(), 0) && starts_with(head_ref.buf, "refs/")) { const char *msg; @@ -4969,6 +5069,11 @@ static int commit_staged_changes(struct repository *r, is_clean = !has_uncommitted_changes(r, 0); + if (!is_clean && !file_exists(rebase_path_message())) { + const char *gpg_opt = gpg_sign_opt_quoted(opts); + + return error(_(staged_changes_advice), gpg_opt, gpg_opt); + } if (file_exists(rebase_path_amend())) { struct strbuf rev = STRBUF_INIT; struct object_id head, to_amend; @@ -5084,7 +5189,7 @@ static int commit_staged_changes(struct repository *r, if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") && refs_delete_ref(get_main_ref_store(r), "", - "CHERRY_PICK_HEAD", NULL, 0)) + "CHERRY_PICK_HEAD", NULL, REF_NO_DEREF)) return error(_("could not remove CHERRY_PICK_HEAD")); if (unlink(git_path_merge_msg(r)) && errno != ENOENT) return error_errno(_("could not remove '%s'"), @@ -5098,7 +5203,8 @@ static int commit_staged_changes(struct repository *r, return error(_("could not commit staged changes.")); unlink(rebase_path_amend()); unlink(git_path_merge_head(r)); - unlink(git_path_auto_merge(r)); + refs_delete_ref(get_main_ref_store(r), "", "AUTO_MERGE", + NULL, REF_NO_DEREF); if (final_fixup) { unlink(rebase_path_fixup_msg()); unlink(rebase_path_squash_msg()); @@ -5352,6 +5458,7 @@ struct label_state { struct oidmap commit2label; struct hashmap labels; struct strbuf buf; + int max_label_length; }; static const char *label_oid(struct object_id *oid, const char *label, @@ -5408,6 +5515,8 @@ static const char *label_oid(struct object_id *oid, const char *label, } } else { struct strbuf *buf = &state->buf; + int label_is_utf8 = 1; /* start with this assumption */ + size_t max_len = buf->len + state->max_label_length; /* * Sanitize labels by replacing non-alpha-numeric characters @@ -5416,14 +5525,34 @@ static const char *label_oid(struct object_id *oid, const char *label, * * Note that we retain non-ASCII UTF-8 characters (identified * via the most significant bit). They should be all acceptable - * in file names. We do not validate the UTF-8 here, that's not - * the job of this function. + * in file names. + * + * As we will use the labels as names of (loose) refs, it is + * vital that the name not be longer than the maximum component + * size of the file system (`NAME_MAX`). We are careful to + * truncate the label accordingly, allowing for the `.lock` + * suffix and for the label to be UTF-8 encoded (i.e. we avoid + * truncating in the middle of a character). */ - for (; *label; label++) - if ((*label & 0x80) || isalnum(*label)) + for (; *label && buf->len + 1 < max_len; label++) + if (isalnum(*label) || + (!label_is_utf8 && (*label & 0x80))) strbuf_addch(buf, *label); + else if (*label & 0x80) { + const char *p = label; + + utf8_width(&p, NULL); + if (p) { + if (buf->len + (p - label) > max_len) + break; + strbuf_add(buf, label, p - label); + label = p - 1; + } else { + label_is_utf8 = 0; + strbuf_addch(buf, *label); + } /* avoid leading dash and double-dashes */ - else if (buf->len && buf->buf[buf->len - 1] != '-') + } else if (buf->len && buf->buf[buf->len - 1] != '-') strbuf_addch(buf, '-'); if (!buf->len) { strbuf_addstr(buf, "rev-"); @@ -5485,7 +5614,8 @@ static int make_script_with_merges(struct pretty_print_context *pp, struct string_entry *entry; struct oidset interesting = OIDSET_INIT, child_seen = OIDSET_INIT, shown = OIDSET_INIT; - struct label_state state = { OIDMAP_INIT, { NULL }, STRBUF_INIT }; + struct label_state state = + { OIDMAP_INIT, { NULL }, STRBUF_INIT, GIT_MAX_LABEL_LENGTH }; int abbr = flags & TODO_LIST_ABBREVIATE_CMDS; const char *cmd_pick = abbr ? "p" : "pick", @@ -5493,6 +5623,8 @@ static int make_script_with_merges(struct pretty_print_context *pp, *cmd_reset = abbr ? "t" : "reset", *cmd_merge = abbr ? "m" : "merge"; + git_config_get_int("rebase.maxlabellength", &state.max_label_length); + oidmap_init(&commit2todo, 0); oidmap_init(&state.commit2label, 0); hashmap_init(&state.labels, labels_cmp, NULL, 0); @@ -5529,7 +5661,7 @@ static int make_script_with_merges(struct pretty_print_context *pp, if (!is_empty && (commit->object.flags & PATCHSAME)) { if (flags & TODO_LIST_WARN_SKIPPED_CHERRY_PICKS) warning(_("skipped previously applied commit %s"), - short_commit_name(commit)); + short_commit_name(the_repository, commit)); skipped_commit = 1; continue; } @@ -5765,7 +5897,7 @@ int sequencer_make_script(struct repository *r, struct strbuf *out, int argc, if (!is_empty && (commit->object.flags & PATCHSAME)) { if (flags & TODO_LIST_WARN_SKIPPED_CHERRY_PICKS) warning(_("skipped previously applied commit %s"), - short_commit_name(commit)); + short_commit_name(r, commit)); skipped_commit = 1; continue; } @@ -5857,7 +5989,8 @@ static void todo_list_add_exec_commands(struct todo_list *todo_list, todo_list->alloc = alloc; } -static void todo_list_to_strbuf(struct repository *r, struct todo_list *todo_list, +static void todo_list_to_strbuf(struct repository *r, + struct todo_list *todo_list, struct strbuf *buf, int num, unsigned flags) { struct todo_item *item; @@ -5886,7 +6019,7 @@ static void todo_list_to_strbuf(struct repository *r, struct todo_list *todo_lis /* add commit id */ if (item->commit) { const char *oid = flags & TODO_LIST_SHORTEN_IDS ? - short_commit_name(item->commit) : + short_commit_name(r, item->commit) : oid_to_hex(&item->commit->object.oid); if (item->command == TODO_FIXUP) { @@ -6194,7 +6327,7 @@ int complete_action(struct repository *r, struct replay_opts *opts, unsigned fla if (checkout_onto(r, opts, onto_name, &oid, orig_head)) goto cleanup; - if (require_clean_work_tree(r, "rebase", "", 1, 1)) + if (require_clean_work_tree(r, "rebase", NULL, 1, 1)) goto cleanup; todo_list_write_total_nr(&new_todo); @@ -6245,7 +6378,7 @@ static int skip_fixupish(const char *subject, const char **p) { int todo_list_rearrange_squash(struct todo_list *todo_list) { struct hashmap subject2item; - int rearranged = 0, *next, *tail, i, nr = 0, alloc = 0; + int rearranged = 0, *next, *tail, i, nr = 0; char **subjects; struct commit_todo_item commit_todo; struct todo_item *items = NULL; @@ -6357,6 +6490,8 @@ int todo_list_rearrange_squash(struct todo_list *todo_list) } if (rearranged) { + ALLOC_ARRAY(items, todo_list->nr); + for (i = 0; i < todo_list->nr; i++) { enum todo_command command = todo_list->items[i].command; int cur = i; @@ -6369,16 +6504,15 @@ int todo_list_rearrange_squash(struct todo_list *todo_list) continue; while (cur >= 0) { - ALLOC_GROW(items, nr + 1, alloc); items[nr++] = todo_list->items[cur]; cur = next[cur]; } } + assert(nr == todo_list->nr); + todo_list->alloc = nr; FREE_AND_NULL(todo_list->items); todo_list->items = items; - todo_list->nr = nr; - todo_list->alloc = alloc; } free(next); |