| #include "cache.h" |
| #include "config.h" |
| #include "lockfile.h" |
| #include "dir.h" |
| #include "object-store.h" |
| #include "object.h" |
| #include "commit.h" |
| #include "sequencer.h" |
| #include "tag.h" |
| #include "run-command.h" |
| #include "exec-cmd.h" |
| #include "utf8.h" |
| #include "cache-tree.h" |
| #include "diff.h" |
| #include "revision.h" |
| #include "rerere.h" |
| #include "merge-recursive.h" |
| #include "refs.h" |
| #include "argv-array.h" |
| #include "quote.h" |
| #include "trailer.h" |
| #include "log-tree.h" |
| #include "wt-status.h" |
| #include "hashmap.h" |
| #include "notes-utils.h" |
| #include "sigchain.h" |
| #include "unpack-trees.h" |
| #include "worktree.h" |
| #include "oidmap.h" |
| #include "oidset.h" |
| #include "commit-slab.h" |
| #include "alias.h" |
| |
| #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" |
| |
| const char sign_off_header[] = "Signed-off-by: "; |
| static const char cherry_picked_prefix[] = "(cherry picked from commit "; |
| |
| GIT_PATH_FUNC(git_path_commit_editmsg, "COMMIT_EDITMSG") |
| |
| GIT_PATH_FUNC(git_path_seq_dir, "sequencer") |
| |
| static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo") |
| static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts") |
| static GIT_PATH_FUNC(git_path_head_file, "sequencer/head") |
| static GIT_PATH_FUNC(git_path_abort_safety_file, "sequencer/abort-safety") |
| |
| static GIT_PATH_FUNC(rebase_path, "rebase-merge") |
| /* |
| * The file containing rebase commands, comments, and empty lines. |
| * This file is created by "git rebase -i" then edited by the user. As |
| * the lines are processed, they are removed from the front of this |
| * file and written to the tail of 'done'. |
| */ |
| static GIT_PATH_FUNC(rebase_path_todo, "rebase-merge/git-rebase-todo") |
| /* |
| * The rebase command lines that have already been processed. A line |
| * is moved here when it is first handled, before any associated user |
| * actions. |
| */ |
| static GIT_PATH_FUNC(rebase_path_done, "rebase-merge/done") |
| /* |
| * The file to keep track of how many commands were already processed (e.g. |
| * for the prompt). |
| */ |
| static GIT_PATH_FUNC(rebase_path_msgnum, "rebase-merge/msgnum") |
| /* |
| * The file to keep track of how many commands are to be processed in total |
| * (e.g. for the prompt). |
| */ |
| static GIT_PATH_FUNC(rebase_path_msgtotal, "rebase-merge/end") |
| /* |
| * The commit message that is planned to be used for any changes that |
| * need to be committed following a user interaction. |
| */ |
| static GIT_PATH_FUNC(rebase_path_message, "rebase-merge/message") |
| /* |
| * The file into which is accumulated the suggested commit message for |
| * squash/fixup commands. When the first of a series of squash/fixups |
| * is seen, the file is created and the commit message from the |
| * previous commit and from the first squash/fixup commit are written |
| * to it. The commit message for each subsequent squash/fixup commit |
| * is appended to the file as it is processed. |
| */ |
| static GIT_PATH_FUNC(rebase_path_squash_msg, "rebase-merge/message-squash") |
| /* |
| * If the current series of squash/fixups has not yet included a squash |
| * command, then this file exists and holds the commit message of the |
| * original "pick" commit. (If the series ends without a "squash" |
| * command, then this can be used as the commit message of the combined |
| * commit without opening the editor.) |
| */ |
| static GIT_PATH_FUNC(rebase_path_fixup_msg, "rebase-merge/message-fixup") |
| /* |
| * This file contains the list fixup/squash commands that have been |
| * accumulated into message-fixup or message-squash so far. |
| */ |
| static GIT_PATH_FUNC(rebase_path_current_fixups, "rebase-merge/current-fixups") |
| /* |
| * A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and |
| * GIT_AUTHOR_DATE that will be used for the commit that is currently |
| * being rebased. |
| */ |
| static GIT_PATH_FUNC(rebase_path_author_script, "rebase-merge/author-script") |
| /* |
| * When an "edit" rebase command is being processed, the SHA1 of the |
| * commit to be edited is recorded in this file. When "git rebase |
| * --continue" is executed, if there are any staged changes then they |
| * will be amended to the HEAD commit, but only provided the HEAD |
| * commit is still the commit to be edited. When any other rebase |
| * command is processed, this file is deleted. |
| */ |
| static GIT_PATH_FUNC(rebase_path_amend, "rebase-merge/amend") |
| /* |
| * When we stop at a given patch via the "edit" command, this file contains |
| * the abbreviated commit name of the corresponding patch. |
| */ |
| static GIT_PATH_FUNC(rebase_path_stopped_sha, "rebase-merge/stopped-sha") |
| /* |
| * 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, |
| * e.g. because they are waiting for a 'squash' command. |
| */ |
| static GIT_PATH_FUNC(rebase_path_rewritten_list, "rebase-merge/rewritten-list") |
| static GIT_PATH_FUNC(rebase_path_rewritten_pending, |
| "rebase-merge/rewritten-pending") |
| |
| /* |
| * The path of the file containig the OID of the "squash onto" commit, i.e. |
| * the dummy commit used for `reset [new root]`. |
| */ |
| static GIT_PATH_FUNC(rebase_path_squash_onto, "rebase-merge/squash-onto") |
| |
| /* |
| * The path of the file listing refs that need to be deleted after the rebase |
| * finishes. This is used by the `label` command to record the need for cleanup. |
| */ |
| static GIT_PATH_FUNC(rebase_path_refs_to_delete, "rebase-merge/refs-to-delete") |
| |
| /* |
| * The following files are written by git-rebase just after parsing the |
| * command-line (and are only consumed, not modified, by the sequencer). |
| */ |
| static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt") |
| static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head") |
| static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose") |
| static GIT_PATH_FUNC(rebase_path_signoff, "rebase-merge/signoff") |
| static GIT_PATH_FUNC(rebase_path_head_name, "rebase-merge/head-name") |
| static GIT_PATH_FUNC(rebase_path_onto, "rebase-merge/onto") |
| static GIT_PATH_FUNC(rebase_path_autostash, "rebase-merge/autostash") |
| static GIT_PATH_FUNC(rebase_path_strategy, "rebase-merge/strategy") |
| static GIT_PATH_FUNC(rebase_path_strategy_opts, "rebase-merge/strategy_opts") |
| static GIT_PATH_FUNC(rebase_path_allow_rerere_autoupdate, "rebase-merge/allow_rerere_autoupdate") |
| |
| static int git_sequencer_config(const char *k, const char *v, 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 (!strcmp(s, "verbatim")) |
| opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_NONE; |
| else if (!strcmp(s, "whitespace")) |
| opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_SPACE; |
| else if (!strcmp(s, "strip")) |
| opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_ALL; |
| else if (!strcmp(s, "scissors")) |
| opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_SPACE; |
| else |
| warning(_("invalid commit message cleanup mode '%s'"), |
| s); |
| |
| free((char *)s); |
| return status; |
| } |
| |
| if (!strcmp(k, "commit.gpgsign")) { |
| opts->gpg_sign = git_config_bool(k, v) ? xstrdup("") : NULL; |
| return 0; |
| } |
| |
| status = git_gpg_config(k, v, NULL); |
| if (status) |
| return status; |
| |
| return git_diff_basic_config(k, v, NULL); |
| } |
| |
| void sequencer_init_config(struct replay_opts *opts) |
| { |
| opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_NONE; |
| git_config(git_sequencer_config, opts); |
| } |
| |
| static inline int is_rebase_i(const struct replay_opts *opts) |
| { |
| return opts->action == REPLAY_INTERACTIVE_REBASE; |
| } |
| |
| static const char *get_dir(const struct replay_opts *opts) |
| { |
| if (is_rebase_i(opts)) |
| return rebase_path(); |
| return git_path_seq_dir(); |
| } |
| |
| static const char *get_todo_path(const struct replay_opts *opts) |
| { |
| if (is_rebase_i(opts)) |
| return rebase_path_todo(); |
| return git_path_todo_file(); |
| } |
| |
| /* |
| * Returns 0 for non-conforming footer |
| * Returns 1 for conforming footer |
| * Returns 2 when sob exists within conforming footer |
| * Returns 3 when sob exists within conforming footer as last entry |
| */ |
| static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob, |
| int ignore_footer) |
| { |
| struct trailer_info info; |
| int i; |
| int found_sob = 0, found_sob_last = 0; |
| |
| trailer_info_get(&info, sb->buf); |
| |
| if (info.trailer_start == info.trailer_end) |
| return 0; |
| |
| for (i = 0; i < info.trailer_nr; i++) |
| if (sob && !strncmp(info.trailers[i], sob->buf, sob->len)) { |
| found_sob = 1; |
| if (i == info.trailer_nr - 1) |
| found_sob_last = 1; |
| } |
| |
| trailer_info_release(&info); |
| |
| if (found_sob_last) |
| return 3; |
| if (found_sob) |
| return 2; |
| return 1; |
| } |
| |
| static const char *gpg_sign_opt_quoted(struct replay_opts *opts) |
| { |
| static struct strbuf buf = STRBUF_INIT; |
| |
| strbuf_reset(&buf); |
| if (opts->gpg_sign) |
| sq_quotef(&buf, "-S%s", opts->gpg_sign); |
| return buf.buf; |
| } |
| |
| int sequencer_remove_state(struct replay_opts *opts) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| int i; |
| |
| if (is_rebase_i(opts) && |
| strbuf_read_file(&buf, rebase_path_refs_to_delete(), 0) > 0) { |
| char *p = buf.buf; |
| while (*p) { |
| char *eol = strchr(p, '\n'); |
| if (eol) |
| *eol = '\0'; |
| if (delete_ref("(rebase -i) cleanup", p, NULL, 0) < 0) |
| warning(_("could not delete '%s'"), p); |
| if (!eol) |
| break; |
| p = eol + 1; |
| } |
| } |
| |
| free(opts->gpg_sign); |
| free(opts->strategy); |
| for (i = 0; i < opts->xopts_nr; i++) |
| free(opts->xopts[i]); |
| free(opts->xopts); |
| strbuf_release(&opts->current_fixups); |
| |
| strbuf_reset(&buf); |
| strbuf_addstr(&buf, get_dir(opts)); |
| remove_dir_recursively(&buf, 0); |
| strbuf_release(&buf); |
| |
| return 0; |
| } |
| |
| static const char *action_name(const struct replay_opts *opts) |
| { |
| switch (opts->action) { |
| case REPLAY_REVERT: |
| return N_("revert"); |
| case REPLAY_PICK: |
| return N_("cherry-pick"); |
| case REPLAY_INTERACTIVE_REBASE: |
| return N_("rebase -i"); |
| } |
| die(_("unknown action: %d"), opts->action); |
| } |
| |
| struct commit_message { |
| char *parent_label; |
| char *label; |
| char *subject; |
| const char *message; |
| }; |
| |
| static const char *short_commit_name(struct commit *commit) |
| { |
| return find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV); |
| } |
| |
| static int get_message(struct commit *commit, struct commit_message *out) |
| { |
| const char *abbrev, *subject; |
| int subject_len; |
| |
| out->message = logmsg_reencode(commit, NULL, get_commit_output_encoding()); |
| abbrev = short_commit_name(commit); |
| |
| subject_len = find_commit_subject(out->message, &subject); |
| |
| out->subject = xmemdupz(subject, subject_len); |
| out->label = xstrfmt("%s... %s", abbrev, out->subject); |
| out->parent_label = xstrfmt("parent of %s", out->label); |
| |
| return 0; |
| } |
| |
| static void free_message(struct commit *commit, struct commit_message *msg) |
| { |
| free(msg->parent_label); |
| free(msg->label); |
| free(msg->subject); |
| unuse_commit_buffer(commit, msg->message); |
| } |
| |
| static void print_advice(int show_hint, struct replay_opts *opts) |
| { |
| char *msg = getenv("GIT_CHERRY_PICK_HELP"); |
| |
| if (msg) { |
| fprintf(stderr, "%s\n", msg); |
| /* |
| * A conflict has occurred but the porcelain |
| * (typically rebase --interactive) wants to take care |
| * of the commit itself so remove CHERRY_PICK_HEAD |
| */ |
| unlink(git_path_cherry_pick_head(the_repository)); |
| return; |
| } |
| |
| if (show_hint) { |
| if (opts->no_commit) |
| advise(_("after resolving the conflicts, mark the corrected paths\n" |
| "with 'git add <paths>' or 'git rm <paths>'")); |
| else |
| advise(_("after resolving the conflicts, mark the corrected paths\n" |
| "with 'git add <paths>' or 'git rm <paths>'\n" |
| "and commit the result with 'git commit'")); |
| } |
| } |
| |
| static int write_message(const void *buf, size_t len, const char *filename, |
| int append_eol) |
| { |
| struct lock_file msg_file = LOCK_INIT; |
| |
| int msg_fd = hold_lock_file_for_update(&msg_file, filename, 0); |
| if (msg_fd < 0) |
| return error_errno(_("could not lock '%s'"), filename); |
| if (write_in_full(msg_fd, buf, len) < 0) { |
| error_errno(_("could not write to '%s'"), filename); |
| rollback_lock_file(&msg_file); |
| return -1; |
| } |
| if (append_eol && write(msg_fd, "\n", 1) < 0) { |
| error_errno(_("could not write eol to '%s'"), filename); |
| rollback_lock_file(&msg_file); |
| return -1; |
| } |
| if (commit_lock_file(&msg_file) < 0) |
| return error(_("failed to finalize '%s'"), filename); |
| |
| return 0; |
| } |
| |
| /* |
| * Reads a file that was presumably written by a shell script, i.e. with an |
| * end-of-line marker that needs to be stripped. |
| * |
| * Note that only the last end-of-line marker is stripped, consistent with the |
| * behavior of "$(cat path)" in a shell script. |
| * |
| * Returns 1 if the file was read, 0 if it could not be read or does not exist. |
| */ |
| static int read_oneliner(struct strbuf *buf, |
| const char *path, int skip_if_empty) |
| { |
| int orig_len = buf->len; |
| |
| if (!file_exists(path)) |
| return 0; |
| |
| if (strbuf_read_file(buf, path, 0) < 0) { |
| warning_errno(_("could not read '%s'"), path); |
| return 0; |
| } |
| |
| if (buf->len > orig_len && buf->buf[buf->len - 1] == '\n') { |
| if (--buf->len > orig_len && buf->buf[buf->len - 1] == '\r') |
| --buf->len; |
| buf->buf[buf->len] = '\0'; |
| } |
| |
| if (skip_if_empty && buf->len == orig_len) |
| return 0; |
| |
| return 1; |
| } |
| |
| static struct tree *empty_tree(void) |
| { |
| return lookup_tree(the_repository, the_repository->hash_algo->empty_tree); |
| } |
| |
| static int error_dirty_index(struct replay_opts *opts) |
| { |
| if (read_cache_unmerged()) |
| return error_resolve_conflict(_(action_name(opts))); |
| |
| error(_("your local changes would be overwritten by %s."), |
| _(action_name(opts))); |
| |
| if (advice_commit_before_merge) |
| advise(_("commit your changes or stash them to proceed.")); |
| return -1; |
| } |
| |
| static void update_abort_safety_file(void) |
| { |
| struct object_id head; |
| |
| /* Do nothing on a single-pick */ |
| if (!file_exists(git_path_seq_dir())) |
| return; |
| |
| if (!get_oid("HEAD", &head)) |
| write_file(git_path_abort_safety_file(), "%s", oid_to_hex(&head)); |
| else |
| write_file(git_path_abort_safety_file(), "%s", ""); |
| } |
| |
| static int fast_forward_to(const struct object_id *to, const struct object_id *from, |
| int unborn, struct replay_opts *opts) |
| { |
| struct ref_transaction *transaction; |
| struct strbuf sb = STRBUF_INIT; |
| struct strbuf err = STRBUF_INIT; |
| |
| read_cache(); |
| if (checkout_fast_forward(from, to, 1)) |
| return -1; /* the callee should have complained already */ |
| |
| strbuf_addf(&sb, _("%s: fast-forward"), _(action_name(opts))); |
| |
| transaction = ref_transaction_begin(&err); |
| if (!transaction || |
| ref_transaction_update(transaction, "HEAD", |
| to, unborn && !is_rebase_i(opts) ? |
| &null_oid : from, |
| 0, sb.buf, &err) || |
| ref_transaction_commit(transaction, &err)) { |
| ref_transaction_free(transaction); |
| error("%s", err.buf); |
| strbuf_release(&sb); |
| strbuf_release(&err); |
| return -1; |
| } |
| |
| strbuf_release(&sb); |
| strbuf_release(&err); |
| ref_transaction_free(transaction); |
| update_abort_safety_file(); |
| return 0; |
| } |
| |
| void append_conflicts_hint(struct strbuf *msgbuf) |
| { |
| int i; |
| |
| strbuf_addch(msgbuf, '\n'); |
| strbuf_commented_addf(msgbuf, "Conflicts:\n"); |
| for (i = 0; i < active_nr;) { |
| const struct cache_entry *ce = active_cache[i++]; |
| if (ce_stage(ce)) { |
| strbuf_commented_addf(msgbuf, "\t%s\n", ce->name); |
| while (i < active_nr && !strcmp(ce->name, |
| active_cache[i]->name)) |
| i++; |
| } |
| } |
| } |
| |
| static int do_recursive_merge(struct commit *base, struct commit *next, |
| const char *base_label, const char *next_label, |
| struct object_id *head, struct strbuf *msgbuf, |
| struct replay_opts *opts) |
| { |
| struct merge_options o; |
| struct tree *result, *next_tree, *base_tree, *head_tree; |
| int clean; |
| char **xopt; |
| struct lock_file index_lock = LOCK_INIT; |
| |
| if (hold_locked_index(&index_lock, LOCK_REPORT_ON_ERROR) < 0) |
| return -1; |
| |
| read_cache(); |
| |
| init_merge_options(&o); |
| o.ancestor = base ? base_label : "(empty tree)"; |
| o.branch1 = "HEAD"; |
| o.branch2 = next ? next_label : "(empty tree)"; |
| if (is_rebase_i(opts)) |
| o.buffer_output = 2; |
| o.show_rename_progress = 1; |
| |
| head_tree = parse_tree_indirect(head); |
| next_tree = next ? get_commit_tree(next) : empty_tree(); |
| base_tree = base ? get_commit_tree(base) : empty_tree(); |
| |
| for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) |
| parse_merge_opt(&o, *xopt); |
| |
| clean = merge_trees(&o, |
| head_tree, |
| next_tree, base_tree, &result); |
| if (is_rebase_i(opts) && clean <= 0) |
| fputs(o.obuf.buf, stdout); |
| strbuf_release(&o.obuf); |
| diff_warn_rename_limit("merge.renamelimit", o.needed_rename_limit, 0); |
| if (clean < 0) { |
| rollback_lock_file(&index_lock); |
| return clean; |
| } |
| |
| if (write_locked_index(&the_index, &index_lock, |
| COMMIT_LOCK | SKIP_IF_UNCHANGED)) |
| /* |
| * TRANSLATORS: %s will be "revert", "cherry-pick" or |
| * "rebase -i". |
| */ |
| return error(_("%s: Unable to write new index file"), |
| _(action_name(opts))); |
| |
| if (!clean) |
| append_conflicts_hint(msgbuf); |
| |
| return !clean; |
| } |
| |
| static struct object_id *get_cache_tree_oid(void) |
| { |
| if (!active_cache_tree) |
| active_cache_tree = cache_tree(); |
| |
| if (!cache_tree_fully_valid(active_cache_tree)) |
| if (cache_tree_update(&the_index, 0)) { |
| error(_("unable to update cache tree")); |
| return NULL; |
| } |
| |
| return &active_cache_tree->oid; |
| } |
| |
| static int is_index_unchanged(void) |
| { |
| struct object_id head_oid, *cache_tree_oid; |
| struct commit *head_commit; |
| |
| if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL)) |
| return error(_("could not resolve HEAD commit")); |
| |
| head_commit = lookup_commit(the_repository, &head_oid); |
| |
| /* |
| * If head_commit is NULL, check_commit, called from |
| * lookup_commit, would have indicated that head_commit is not |
| * a commit object already. parse_commit() will return failure |
| * without further complaints in such a case. Otherwise, if |
| * the commit is invalid, parse_commit() will complain. So |
| * there is nothing for us to say here. Just return failure. |
| */ |
| if (parse_commit(head_commit)) |
| return -1; |
| |
| if (!(cache_tree_oid = get_cache_tree_oid())) |
| return -1; |
| |
| return !oidcmp(cache_tree_oid, get_commit_tree_oid(head_commit)); |
| } |
| |
| static int write_author_script(const char *message) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| const char *eol; |
| int res; |
| |
| for (;;) |
| if (!*message || starts_with(message, "\n")) { |
| missing_author: |
| /* Missing 'author' line? */ |
| unlink(rebase_path_author_script()); |
| return 0; |
| } else if (skip_prefix(message, "author ", &message)) |
| break; |
| else if ((eol = strchr(message, '\n'))) |
| message = eol + 1; |
| else |
| goto missing_author; |
| |
| strbuf_addstr(&buf, "GIT_AUTHOR_NAME='"); |
| while (*message && *message != '\n' && *message != '\r') |
| if (skip_prefix(message, " <", &message)) |
| break; |
| else if (*message != '\'') |
| strbuf_addch(&buf, *(message++)); |
| else |
| strbuf_addf(&buf, "'\\%c'", *(message++)); |
| strbuf_addstr(&buf, "'\nGIT_AUTHOR_EMAIL='"); |
| while (*message && *message != '\n' && *message != '\r') |
| if (skip_prefix(message, "> ", &message)) |
| break; |
| else if (*message != '\'') |
| strbuf_addch(&buf, *(message++)); |
| else |
| strbuf_addf(&buf, "'\\%c'", *(message++)); |
| strbuf_addstr(&buf, "'\nGIT_AUTHOR_DATE='@"); |
| while (*message && *message != '\n' && *message != '\r') |
| if (*message != '\'') |
| strbuf_addch(&buf, *(message++)); |
| else |
| strbuf_addf(&buf, "'\\%c'", *(message++)); |
| strbuf_addch(&buf, '\''); |
| res = write_message(buf.buf, buf.len, rebase_path_author_script(), 1); |
| strbuf_release(&buf); |
| return res; |
| } |
| |
| |
| /* |
| * write_author_script() used to fail to terminate the last line with a "'" and |
| * also escaped "'" incorrectly as "'\\\\''" rather than "'\\''". We check for |
| * the terminating "'" on the last line to see how "'" has been escaped in case |
| * git was upgraded while rebase was stopped. |
| */ |
| static int quoting_is_broken(const char *s, size_t n) |
| { |
| /* Skip any empty lines in case the file was hand edited */ |
| while (n > 0 && s[--n] == '\n') |
| ; /* empty */ |
| if (n > 0 && s[n] != '\'') |
| return 1; |
| |
| return 0; |
| } |
| |
| /* |
| * Read a list of environment variable assignments (such as the author-script |
| * file) into an environment block. Returns -1 on error, 0 otherwise. |
| */ |
| static int read_env_script(struct argv_array *env) |
| { |
| struct strbuf script = STRBUF_INIT; |
| int i, count = 0, sq_bug; |
| const char *p2; |
| char *p; |
| |
| if (strbuf_read_file(&script, rebase_path_author_script(), 256) <= 0) |
| return -1; |
| /* write_author_script() used to quote incorrectly */ |
| sq_bug = quoting_is_broken(script.buf, script.len); |
| for (p = script.buf; *p; p++) |
| if (sq_bug && skip_prefix(p, "'\\\\''", &p2)) |
| strbuf_splice(&script, p - script.buf, p2 - p, "'", 1); |
| else if (skip_prefix(p, "'\\''", &p2)) |
| strbuf_splice(&script, p - script.buf, p2 - p, "'", 1); |
| else if (*p == '\'') |
| strbuf_splice(&script, p-- - script.buf, 1, "", 0); |
| else if (*p == '\n') { |
| *p = '\0'; |
| count++; |
| } |
| |
| for (i = 0, p = script.buf; i < count; i++) { |
| argv_array_push(env, p); |
| p += strlen(p) + 1; |
| } |
| |
| return 0; |
| } |
| |
| static char *get_author(const char *message) |
| { |
| size_t len; |
| const char *a; |
| |
| a = find_commit_header(message, "author", &len); |
| if (a) |
| return xmemdupz(a, len); |
| |
| return NULL; |
| } |
| |
| /* Read author-script and return an ident line (author <email> timestamp) */ |
| static const char *read_author_ident(struct strbuf *buf) |
| { |
| const char *keys[] = { |
| "GIT_AUTHOR_NAME=", "GIT_AUTHOR_EMAIL=", "GIT_AUTHOR_DATE=" |
| }; |
| struct strbuf out = STRBUF_INIT; |
| char *in, *eol; |
| const char *val[3]; |
| int i = 0; |
| |
| if (strbuf_read_file(buf, rebase_path_author_script(), 256) <= 0) |
| return NULL; |
| |
| /* dequote values and construct ident line in-place */ |
| for (in = buf->buf; i < 3 && in - buf->buf < buf->len; i++) { |
| if (!skip_prefix(in, keys[i], (const char **)&in)) { |
| warning(_("could not parse '%s' (looking for '%s')"), |
| rebase_path_author_script(), keys[i]); |
| return NULL; |
| } |
| |
| eol = strchrnul(in, '\n'); |
| *eol = '\0'; |
| if (!sq_dequote(in)) { |
| warning(_("bad quoting on %s value in '%s'"), |
| keys[i], rebase_path_author_script()); |
| return NULL; |
| } |
| val[i] = in; |
| in = eol + 1; |
| } |
| |
| if (i < 3) { |
| warning(_("could not parse '%s' (looking for '%s')"), |
| rebase_path_author_script(), keys[i]); |
| return NULL; |
| } |
| |
| /* validate date since fmt_ident() will die() on bad value */ |
| if (parse_date(val[2], &out)){ |
| warning(_("invalid date format '%s' in '%s'"), |
| val[2], rebase_path_author_script()); |
| strbuf_release(&out); |
| return NULL; |
| } |
| |
| strbuf_reset(&out); |
| strbuf_addstr(&out, fmt_ident(val[0], val[1], val[2], 0)); |
| strbuf_swap(buf, &out); |
| strbuf_release(&out); |
| return buf->buf; |
| } |
| |
| static const char staged_changes_advice[] = |
| N_("you have staged changes in your working tree\n" |
| "If these changes are meant to be squashed into the previous commit, run:\n" |
| "\n" |
| " git commit --amend %s\n" |
| "\n" |
| "If they are meant to go into a new commit, run:\n" |
| "\n" |
| " git commit %s\n" |
| "\n" |
| "In both cases, once you're done, continue with:\n" |
| "\n" |
| " git rebase --continue\n"); |
| |
| #define ALLOW_EMPTY (1<<0) |
| #define EDIT_MSG (1<<1) |
| #define AMEND_MSG (1<<2) |
| #define CLEANUP_MSG (1<<3) |
| #define VERIFY_MSG (1<<4) |
| #define CREATE_ROOT_COMMIT (1<<5) |
| |
| /* |
| * If we are cherry-pick, and if the merge did not result in |
| * hand-editing, we will hit this commit and inherit the original |
| * author date and name. |
| * |
| * 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. |
| * |
| * An exception is when run_git_commit() is called during an |
| * interactive rebase: in that case, we will want to retain the |
| * author metadata. |
| */ |
| static int run_git_commit(const char *defmsg, struct replay_opts *opts, |
| unsigned int flags) |
| { |
| struct child_process cmd = CHILD_PROCESS_INIT; |
| const char *value; |
| |
| if ((flags & CREATE_ROOT_COMMIT) && !(flags & AMEND_MSG)) { |
| struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT; |
| const char *author = NULL; |
| struct object_id root_commit, *cache_tree_oid; |
| int res = 0; |
| |
| if (is_rebase_i(opts)) { |
| author = read_author_ident(&script); |
| if (!author) { |
| strbuf_release(&script); |
| return -1; |
| } |
| } |
| |
| if (!defmsg) |
| BUG("root commit without message"); |
| |
| if (!(cache_tree_oid = get_cache_tree_oid())) |
| res = -1; |
| |
| if (!res) |
| res = strbuf_read_file(&msg, defmsg, 0); |
| |
| if (res <= 0) |
| res = error_errno(_("could not read '%s'"), defmsg); |
| else |
| res = commit_tree(msg.buf, msg.len, cache_tree_oid, |
| NULL, &root_commit, author, |
| opts->gpg_sign); |
| |
| strbuf_release(&msg); |
| strbuf_release(&script); |
| if (!res) { |
| update_ref(NULL, "CHERRY_PICK_HEAD", &root_commit, NULL, |
| REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR); |
| res = update_ref(NULL, "HEAD", &root_commit, NULL, 0, |
| UPDATE_REFS_MSG_ON_ERR); |
| } |
| return res < 0 ? error(_("writing root commit")) : 0; |
| } |
| |
| cmd.git_cmd = 1; |
| |
| if (is_rebase_i(opts)) { |
| if (!(flags & EDIT_MSG)) { |
| cmd.stdout_to_stderr = 1; |
| cmd.err = -1; |
| } |
| |
| if (read_env_script(&cmd.env_array)) { |
| const char *gpg_opt = gpg_sign_opt_quoted(opts); |
| |
| return error(_(staged_changes_advice), |
| gpg_opt, gpg_opt); |
| } |
| } |
| |
| argv_array_push(&cmd.args, "commit"); |
| |
| if (!(flags & VERIFY_MSG)) |
| argv_array_push(&cmd.args, "-n"); |
| if ((flags & AMEND_MSG)) |
| argv_array_push(&cmd.args, "--amend"); |
| if (opts->gpg_sign) |
| argv_array_pushf(&cmd.args, "-S%s", opts->gpg_sign); |
| if (defmsg) |
| argv_array_pushl(&cmd.args, "-F", defmsg, NULL); |
| else if (!(flags & EDIT_MSG)) |
| argv_array_pushl(&cmd.args, "-C", "HEAD", NULL); |
| if ((flags & CLEANUP_MSG)) |
| argv_array_push(&cmd.args, "--cleanup=strip"); |
| if ((flags & EDIT_MSG)) |
| argv_array_push(&cmd.args, "-e"); |
| else if (!(flags & CLEANUP_MSG) && |
| !opts->signoff && !opts->record_origin && |
| git_config_get_value("commit.cleanup", &value)) |
| argv_array_push(&cmd.args, "--cleanup=verbatim"); |
| |
| if ((flags & ALLOW_EMPTY)) |
| argv_array_push(&cmd.args, "--allow-empty"); |
| |
| if (opts->allow_empty_message) |
| argv_array_push(&cmd.args, "--allow-empty-message"); |
| |
| if (cmd.err == -1) { |
| /* hide stderr on success */ |
| struct strbuf buf = STRBUF_INIT; |
| int rc = pipe_command(&cmd, |
| NULL, 0, |
| /* stdout is already redirected */ |
| NULL, 0, |
| &buf, 0); |
| if (rc) |
| fputs(buf.buf, stderr); |
| strbuf_release(&buf); |
| return rc; |
| } |
| |
| return run_command(&cmd); |
| } |
| |
| static int rest_is_empty(const struct strbuf *sb, int start) |
| { |
| int i, eol; |
| const char *nl; |
| |
| /* Check if the rest is just whitespace and Signed-off-by's. */ |
| for (i = start; i < sb->len; i++) { |
| nl = memchr(sb->buf + i, '\n', sb->len - i); |
| if (nl) |
| eol = nl - sb->buf; |
| else |
| eol = sb->len; |
| |
| if (strlen(sign_off_header) <= eol - i && |
| starts_with(sb->buf + i, sign_off_header)) { |
| i = eol; |
| continue; |
| } |
| while (i < eol) |
| if (!isspace(sb->buf[i++])) |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| /* |
| * Find out if the message in the strbuf contains only whitespace and |
| * Signed-off-by lines. |
| */ |
| int message_is_empty(const struct strbuf *sb, |
| enum commit_msg_cleanup_mode cleanup_mode) |
| { |
| if (cleanup_mode == COMMIT_MSG_CLEANUP_NONE && sb->len) |
| return 0; |
| return rest_is_empty(sb, 0); |
| } |
| |
| /* |
| * See if the user edited the message in the editor or left what |
| * was in the template intact |
| */ |
| int template_untouched(const struct strbuf *sb, const char *template_file, |
| enum commit_msg_cleanup_mode cleanup_mode) |
| { |
| struct strbuf tmpl = STRBUF_INIT; |
| const char *start; |
| |
| if (cleanup_mode == COMMIT_MSG_CLEANUP_NONE && sb->len) |
| return 0; |
| |
| if (!template_file || strbuf_read_file(&tmpl, template_file, 0) <= 0) |
| return 0; |
| |
| strbuf_stripspace(&tmpl, cleanup_mode == COMMIT_MSG_CLEANUP_ALL); |
| if (!skip_prefix(sb->buf, tmpl.buf, &start)) |
| start = sb->buf; |
| strbuf_release(&tmpl); |
| return rest_is_empty(sb, start - sb->buf); |
| } |
| |
| int update_head_with_reflog(const struct commit *old_head, |
| const struct object_id *new_head, |
| const char *action, const struct strbuf *msg, |
| struct strbuf *err) |
| { |
| struct ref_transaction *transaction; |
| struct strbuf sb = STRBUF_INIT; |
| const char *nl; |
| int ret = 0; |
| |
| if (action) { |
| strbuf_addstr(&sb, action); |
| strbuf_addstr(&sb, ": "); |
| } |
| |
| nl = strchr(msg->buf, '\n'); |
| if (nl) { |
| strbuf_add(&sb, msg->buf, nl + 1 - msg->buf); |
| } else { |
| strbuf_addbuf(&sb, msg); |
| strbuf_addch(&sb, '\n'); |
| } |
| |
| transaction = ref_transaction_begin(err); |
| if (!transaction || |
| ref_transaction_update(transaction, "HEAD", new_head, |
| old_head ? &old_head->object.oid : &null_oid, |
| 0, sb.buf, err) || |
| ref_transaction_commit(transaction, err)) { |
| ret = -1; |
| } |
| ref_transaction_free(transaction); |
| strbuf_release(&sb); |
| |
| return ret; |
| } |
| |
| static int run_rewrite_hook(const struct object_id *oldoid, |
| const struct object_id *newoid) |
| { |
| struct child_process proc = CHILD_PROCESS_INIT; |
| const char *argv[3]; |
| int code; |
| struct strbuf sb = STRBUF_INIT; |
| |
| argv[0] = find_hook("post-rewrite"); |
| if (!argv[0]) |
| return 0; |
| |
| argv[1] = "amend"; |
| argv[2] = NULL; |
| |
| proc.argv = argv; |
| proc.in = -1; |
| proc.stdout_to_stderr = 1; |
| |
| code = start_command(&proc); |
| if (code) |
| return code; |
| strbuf_addf(&sb, "%s %s\n", oid_to_hex(oldoid), oid_to_hex(newoid)); |
| sigchain_push(SIGPIPE, SIG_IGN); |
| write_in_full(proc.in, sb.buf, sb.len); |
| close(proc.in); |
| strbuf_release(&sb); |
| sigchain_pop(SIGPIPE); |
| return finish_command(&proc); |
| } |
| |
| void commit_post_rewrite(const struct commit *old_head, |
| const struct object_id *new_head) |
| { |
| struct notes_rewrite_cfg *cfg; |
| |
| cfg = init_copy_notes_for_rewrite("amend"); |
| if (cfg) { |
| /* we are amending, so old_head is not NULL */ |
| copy_note_for_rewrite(cfg, &old_head->object.oid, new_head); |
| finish_copy_notes_for_rewrite(cfg, "Notes added by 'git commit --amend'"); |
| } |
| run_rewrite_hook(&old_head->object.oid, new_head); |
| } |
| |
| static int run_prepare_commit_msg_hook(struct strbuf *msg, const char *commit) |
| { |
| struct argv_array hook_env = ARGV_ARRAY_INIT; |
| int ret; |
| const char *name; |
| |
| name = git_path_commit_editmsg(); |
| if (write_message(msg->buf, msg->len, name, 0)) |
| return -1; |
| |
| argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", get_index_file()); |
| argv_array_push(&hook_env, "GIT_EDITOR=:"); |
| if (commit) |
| ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name, |
| "commit", commit, NULL); |
| else |
| ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name, |
| "message", NULL); |
| if (ret) |
| ret = error(_("'prepare-commit-msg' hook failed")); |
| argv_array_clear(&hook_env); |
| |
| return ret; |
| } |
| |
| static const char implicit_ident_advice_noconfig[] = |
| N_("Your name and email address were configured automatically based\n" |
| "on your username and hostname. Please check that they are accurate.\n" |
| "You can suppress this message by setting them explicitly. Run the\n" |
| "following command and follow the instructions in your editor to edit\n" |
| "your configuration file:\n" |
| "\n" |
| " git config --global --edit\n" |
| "\n" |
| "After doing this, you may fix the identity used for this commit with:\n" |
| "\n" |
| " git commit --amend --reset-author\n"); |
| |
| static const char implicit_ident_advice_config[] = |
| N_("Your name and email address were configured automatically based\n" |
| "on your username and hostname. Please check that they are accurate.\n" |
| "You can suppress this message by setting them explicitly:\n" |
| "\n" |
| " git config --global user.name \"Your Name\"\n" |
| " git config --global user.email you@example.com\n" |
| "\n" |
| "After doing this, you may fix the identity used for this commit with:\n" |
| "\n" |
| " git commit --amend --reset-author\n"); |
| |
| static const char *implicit_ident_advice(void) |
| { |
| char *user_config = expand_user_path("~/.gitconfig", 0); |
| char *xdg_config = xdg_config_home("config"); |
| int config_exists = file_exists(user_config) || file_exists(xdg_config); |
| |
| free(user_config); |
| free(xdg_config); |
| |
| if (config_exists) |
| return _(implicit_ident_advice_config); |
| else |
| return _(implicit_ident_advice_noconfig); |
| |
| } |
| |
| void print_commit_summary(const char *prefix, const struct object_id *oid, |
| unsigned int flags) |
| { |
| struct rev_info rev; |
| struct commit *commit; |
| struct strbuf format = STRBUF_INIT; |
| const char *head; |
| struct pretty_print_context pctx = {0}; |
| struct strbuf author_ident = STRBUF_INIT; |
| struct strbuf committer_ident = STRBUF_INIT; |
| |
| commit = lookup_commit(the_repository, oid); |
| if (!commit) |
| die(_("couldn't look up newly created commit")); |
| if (parse_commit(commit)) |
| die(_("could not parse newly created commit")); |
| |
| strbuf_addstr(&format, "format:%h] %s"); |
| |
| format_commit_message(commit, "%an <%ae>", &author_ident, &pctx); |
| format_commit_message(commit, "%cn <%ce>", &committer_ident, &pctx); |
| if (strbuf_cmp(&author_ident, &committer_ident)) { |
| strbuf_addstr(&format, "\n Author: "); |
| strbuf_addbuf_percentquote(&format, &author_ident); |
| } |
| if (flags & SUMMARY_SHOW_AUTHOR_DATE) { |
| struct strbuf date = STRBUF_INIT; |
| |
| format_commit_message(commit, "%ad", &date, &pctx); |
| strbuf_addstr(&format, "\n Date: "); |
| strbuf_addbuf_percentquote(&format, &date); |
| strbuf_release(&date); |
| } |
| if (!committer_ident_sufficiently_given()) { |
| strbuf_addstr(&format, "\n Committer: "); |
| strbuf_addbuf_percentquote(&format, &committer_ident); |
| if (advice_implicit_identity) { |
| strbuf_addch(&format, '\n'); |
| strbuf_addstr(&format, implicit_ident_advice()); |
| } |
| } |
| strbuf_release(&author_ident); |
| strbuf_release(&committer_ident); |
| |
| init_revisions(&rev, prefix); |
| setup_revisions(0, NULL, &rev, NULL); |
| |
| rev.diff = 1; |
| rev.diffopt.output_format = |
| DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY; |
| |
| rev.verbose_header = 1; |
| rev.show_root_diff = 1; |
| get_commit_format(format.buf, &rev); |
| rev.always_show_header = 0; |
| rev.diffopt.detect_rename = DIFF_DETECT_RENAME; |
| rev.diffopt.break_opt = 0; |
| diff_setup_done(&rev.diffopt); |
| |
| head = resolve_ref_unsafe("HEAD", 0, NULL, NULL); |
| if (!head) |
| die_errno(_("unable to resolve HEAD after creating commit")); |
| if (!strcmp(head, "HEAD")) |
| head = _("detached HEAD"); |
| else |
| skip_prefix(head, "refs/heads/", &head); |
| printf("[%s%s ", head, (flags & SUMMARY_INITIAL_COMMIT) ? |
| _(" (root-commit)") : ""); |
| |
| if (!log_tree_commit(&rev, commit)) { |
| rev.always_show_header = 1; |
| rev.use_terminator = 1; |
| log_tree_commit(&rev, commit); |
| } |
| |
| strbuf_release(&format); |
| } |
| |
| static int parse_head(struct commit **head) |
| { |
| struct commit *current_head; |
| struct object_id oid; |
| |
| if (get_oid("HEAD", &oid)) { |
| current_head = NULL; |
| } else { |
| current_head = lookup_commit_reference(the_repository, &oid); |
| if (!current_head) |
| return error(_("could not parse HEAD")); |
| if (oidcmp(&oid, ¤t_head->object.oid)) { |
| warning(_("HEAD %s is not a commit!"), |
| oid_to_hex(&oid)); |
| } |
| if (parse_commit(current_head)) |
| return error(_("could not parse HEAD commit")); |
| } |
| *head = current_head; |
| |
| return 0; |
| } |
| |
| /* |
| * Try to commit without forking 'git commit'. In some cases we need |
| * to run 'git commit' to display an error message |
| * |
| * Returns: |
| * -1 - error unable to commit |
| * 0 - success |
| * 1 - run 'git commit' |
| */ |
| static int try_to_commit(struct strbuf *msg, const char *author, |
| struct replay_opts *opts, unsigned int flags, |
| struct object_id *oid) |
| { |
| struct object_id tree; |
| struct commit *current_head; |
| struct commit_list *parents = NULL; |
| struct commit_extra_header *extra = NULL; |
| struct strbuf err = STRBUF_INIT; |
| struct strbuf commit_msg = STRBUF_INIT; |
| char *amend_author = NULL; |
| const char *hook_commit = NULL; |
| enum commit_msg_cleanup_mode cleanup; |
| int res = 0; |
| |
| if (parse_head(¤t_head)) |
| return -1; |
| |
| if (flags & AMEND_MSG) { |
| const char *exclude_gpgsig[] = { "gpgsig", NULL }; |
| const char *out_enc = get_commit_output_encoding(); |
| const char *message = logmsg_reencode(current_head, NULL, |
| out_enc); |
| |
| if (!msg) { |
| const char *orig_message = NULL; |
| |
| find_commit_subject(message, &orig_message); |
| msg = &commit_msg; |
| strbuf_addstr(msg, orig_message); |
| hook_commit = "HEAD"; |
| } |
| author = amend_author = get_author(message); |
| unuse_commit_buffer(current_head, message); |
| if (!author) { |
| res = error(_("unable to parse commit author")); |
| goto out; |
| } |
| parents = copy_commit_list(current_head->parents); |
| extra = read_commit_extra_headers(current_head, exclude_gpgsig); |
| } else if (current_head) { |
| commit_list_insert(current_head, &parents); |
| } |
| |
| if (write_index_as_tree(&tree, &the_index, get_index_file(), 0, NULL)) { |
| res = error(_("git write-tree failed to write a tree")); |
| goto out; |
| } |
| |
| if (!(flags & ALLOW_EMPTY) && !oidcmp(current_head ? |
| get_commit_tree_oid(current_head) : |
| the_hash_algo->empty_tree, &tree)) { |
| res = 1; /* run 'git commit' to display error message */ |
| goto out; |
| } |
| |
| if (find_hook("prepare-commit-msg")) { |
| res = run_prepare_commit_msg_hook(msg, hook_commit); |
| if (res) |
| goto out; |
| if (strbuf_read_file(&commit_msg, git_path_commit_editmsg(), |
| 2048) < 0) { |
| res = error_errno(_("unable to read commit message " |
| "from '%s'"), |
| git_path_commit_editmsg()); |
| goto out; |
| } |
| msg = &commit_msg; |
| } |
| |
| cleanup = (flags & CLEANUP_MSG) ? COMMIT_MSG_CLEANUP_ALL : |
| opts->default_msg_cleanup; |
| |
| if (cleanup != COMMIT_MSG_CLEANUP_NONE) |
| strbuf_stripspace(msg, cleanup == COMMIT_MSG_CLEANUP_ALL); |
| if (!opts->allow_empty_message && message_is_empty(msg, cleanup)) { |
| res = 1; /* run 'git commit' to display error message */ |
| goto out; |
| } |
| |
| reset_ident_date(); |
| |
| if (commit_tree_extended(msg->buf, msg->len, &tree, parents, |
| oid, author, opts->gpg_sign, extra)) { |
| res = error(_("failed to write commit object")); |
| goto out; |
| } |
| |
| if (update_head_with_reflog(current_head, oid, |
| getenv("GIT_REFLOG_ACTION"), msg, &err)) { |
| res = error("%s", err.buf); |
| goto out; |
| } |
| |
| if (flags & AMEND_MSG) |
| commit_post_rewrite(current_head, oid); |
| |
| out: |
| free_commit_extra_headers(extra); |
| strbuf_release(&err); |
| strbuf_release(&commit_msg); |
| free(amend_author); |
| |
| return res; |
| } |
| |
| static int do_commit(const char *msg_file, const char *author, |
| struct replay_opts *opts, unsigned int flags) |
| { |
| int res = 1; |
| |
| if (!(flags & EDIT_MSG) && !(flags & VERIFY_MSG) && |
| !(flags & CREATE_ROOT_COMMIT)) { |
| struct object_id oid; |
| struct strbuf sb = STRBUF_INIT; |
| |
| if (msg_file && strbuf_read_file(&sb, msg_file, 2048) < 0) |
| return error_errno(_("unable to read commit message " |
| "from '%s'"), |
| msg_file); |
| |
| res = try_to_commit(msg_file ? &sb : NULL, author, opts, flags, |
| &oid); |
| strbuf_release(&sb); |
| if (!res) { |
| unlink(git_path_cherry_pick_head(the_repository)); |
| unlink(git_path_merge_msg(the_repository)); |
| if (!is_rebase_i(opts)) |
| print_commit_summary(NULL, &oid, |
| SUMMARY_SHOW_AUTHOR_DATE); |
| return res; |
| } |
| } |
| if (res == 1) |
| return run_git_commit(msg_file, opts, flags); |
| |
| return res; |
| } |
| |
| static int is_original_commit_empty(struct commit *commit) |
| { |
| const struct object_id *ptree_oid; |
| |
| if (parse_commit(commit)) |
| return error(_("could not parse commit %s"), |
| oid_to_hex(&commit->object.oid)); |
| if (commit->parents) { |
| struct commit *parent = commit->parents->item; |
| if (parse_commit(parent)) |
| return error(_("could not parse parent commit %s"), |
| oid_to_hex(&parent->object.oid)); |
| ptree_oid = get_commit_tree_oid(parent); |
| } else { |
| ptree_oid = the_hash_algo->empty_tree; /* commit is root */ |
| } |
| |
| return !oidcmp(ptree_oid, get_commit_tree_oid(commit)); |
| } |
| |
| /* |
| * Do we run "git commit" with "--allow-empty"? |
| */ |
| static int allow_empty(struct replay_opts *opts, struct commit *commit) |
| { |
| int index_unchanged, empty_commit; |
| |
| /* |
| * Three cases: |
| * |
| * (1) we do not allow empty at all and error out. |
| * |
| * (2) we allow ones that were initially empty, but |
| * forbid the ones that become empty; |
| * |
| * (3) we allow both. |
| */ |
| if (!opts->allow_empty) |
| return 0; /* let "git commit" barf as necessary */ |
| |
| index_unchanged = is_index_unchanged(); |
| if (index_unchanged < 0) |
| return index_unchanged; |
| if (!index_unchanged) |
| return 0; /* we do not have to say --allow-empty */ |
| |
| if (opts->keep_redundant_commits) |
| return 1; |
| |
| empty_commit = is_original_commit_empty(commit); |
| if (empty_commit < 0) |
| return empty_commit; |
| if (!empty_commit) |
| return 0; |
| else |
| return 1; |
| } |
| |
| /* |
| * Note that ordering matters in this enum. Not only must it match the mapping |
| * below, it is also divided into several sections that matter. When adding |
| * new commands, make sure you add it in the right section. |
| */ |
| enum todo_command { |
| /* commands that handle commits */ |
| TODO_PICK = 0, |
| TODO_REVERT, |
| TODO_EDIT, |
| TODO_REWORD, |
| TODO_FIXUP, |
| TODO_SQUASH, |
| /* commands that do something else than handling a single commit */ |
| TODO_EXEC, |
| TODO_LABEL, |
| TODO_RESET, |
| TODO_MERGE, |
| /* commands that do nothing but are counted for reporting progress */ |
| TODO_NOOP, |
| TODO_DROP, |
| /* comments (not counted for reporting progress) */ |
| TODO_COMMENT |
| }; |
| |
| static struct { |
| char c; |
| const char *str; |
| } todo_command_info[] = { |
| { 'p', "pick" }, |
| { 0, "revert" }, |
| { 'e', "edit" }, |
| { 'r', "reword" }, |
| { 'f', "fixup" }, |
| { 's', "squash" }, |
| { 'x', "exec" }, |
| { 'l', "label" }, |
| { 't', "reset" }, |
| { 'm', "merge" }, |
| { 0, "noop" }, |
| { 'd', "drop" }, |
| { 0, NULL } |
| }; |
| |
| static const char *command_to_string(const enum todo_command command) |
| { |
| if (command < TODO_COMMENT) |
| return todo_command_info[command].str; |
| die(_("unknown command: %d"), command); |
| } |
| |
| static char command_to_char(const enum todo_command command) |
| { |
| if (command < TODO_COMMENT && todo_command_info[command].c) |
| return todo_command_info[command].c; |
| return comment_line_char; |
| } |
| |
| static int is_noop(const enum todo_command command) |
| { |
| return TODO_NOOP <= command; |
| } |
| |
| static int is_fixup(enum todo_command command) |
| { |
| return command == TODO_FIXUP || command == TODO_SQUASH; |
| } |
| |
| /* Does this command create a (non-merge) commit? */ |
| static int is_pick_or_similar(enum todo_command command) |
| { |
| switch (command) { |
| case TODO_PICK: |
| case TODO_REVERT: |
| case TODO_EDIT: |
| case TODO_REWORD: |
| case TODO_FIXUP: |
| case TODO_SQUASH: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| static int update_squash_messages(enum todo_command command, |
| struct commit *commit, struct replay_opts *opts) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| int res; |
| const char *message, *body; |
| |
| if (opts->current_fixup_count > 0) { |
| struct strbuf header = STRBUF_INIT; |
| char *eol; |
| |
| if (strbuf_read_file(&buf, rebase_path_squash_msg(), 9) <= 0) |
| return error(_("could not read '%s'"), |
| rebase_path_squash_msg()); |
| |
| eol = buf.buf[0] != comment_line_char ? |
| buf.buf : strchrnul(buf.buf, '\n'); |
| |
| strbuf_addf(&header, "%c ", comment_line_char); |
| strbuf_addf(&header, _("This is a combination of %d commits."), |
| opts->current_fixup_count + 2); |
| strbuf_splice(&buf, 0, eol - buf.buf, header.buf, header.len); |
| strbuf_release(&header); |
| } else { |
| struct object_id head; |
| struct commit *head_commit; |
| const char *head_message, *body; |
| |
| if (get_oid("HEAD", &head)) |
| return error(_("need a HEAD to fixup")); |
| if (!(head_commit = lookup_commit_reference(the_repository, &head))) |
| return error(_("could not read HEAD")); |
| if (!(head_message = get_commit_buffer(head_commit, NULL))) |
| return error(_("could not read HEAD's commit message")); |
| |
| find_commit_subject(head_message, &body); |
| if (write_message(body, strlen(body), |
| rebase_path_fixup_msg(), 0)) { |
| unuse_commit_buffer(head_commit, head_message); |
| return error(_("cannot write '%s'"), |
| rebase_path_fixup_msg()); |
| } |
| |
| strbuf_addf(&buf, "%c ", comment_line_char); |
| strbuf_addf(&buf, _("This is a combination of %d commits."), 2); |
| strbuf_addf(&buf, "\n%c ", comment_line_char); |
| strbuf_addstr(&buf, _("This is the 1st commit message:")); |
| strbuf_addstr(&buf, "\n\n"); |
| strbuf_addstr(&buf, body); |
| |
| unuse_commit_buffer(head_commit, head_message); |
| } |
| |
| if (!(message = get_commit_buffer(commit, NULL))) |
| return error(_("could not read commit message of %s"), |
| oid_to_hex(&commit->object.oid)); |
| find_commit_subject(message, &body); |
| |
| if (command == TODO_SQUASH) { |
| unlink(rebase_path_fixup_msg()); |
| strbuf_addf(&buf, "\n%c ", comment_line_char); |
| strbuf_addf(&buf, _("This is the commit message #%d:"), |
| ++opts->current_fixup_count + 1); |
| strbuf_addstr(&buf, "\n\n"); |
| strbuf_addstr(&buf, body); |
| } else if (command == TODO_FIXUP) { |
| strbuf_addf(&buf, "\n%c ", comment_line_char); |
| strbuf_addf(&buf, _("The commit message #%d will be skipped:"), |
| ++opts->current_fixup_count + 1); |
| strbuf_addstr(&buf, "\n\n"); |
| strbuf_add_commented_lines(&buf, body, strlen(body)); |
| } else |
| return error(_("unknown command: %d"), command); |
| unuse_commit_buffer(commit, message); |
| |
| res = write_message(buf.buf, buf.len, rebase_path_squash_msg(), 0); |
| strbuf_release(&buf); |
| |
| if (!res) { |
| strbuf_addf(&opts->current_fixups, "%s%s %s", |
| opts->current_fixups.len ? "\n" : "", |
| command_to_string(command), |
| oid_to_hex(&commit->object.oid)); |
| res = write_message(opts->current_fixups.buf, |
| opts->current_fixups.len, |
| rebase_path_current_fixups(), 0); |
| } |
| |
| return res; |
| } |
| |
| static void flush_rewritten_pending(void) { |
| struct strbuf buf = STRBUF_INIT; |
| struct object_id newoid; |
| FILE *out; |
| |
| if (strbuf_read_file(&buf, rebase_path_rewritten_pending(), (GIT_MAX_HEXSZ + 1) * 2) > 0 && |
| !get_oid("HEAD", &newoid) && |
| (out = fopen_or_warn(rebase_path_rewritten_list(), "a"))) { |
| char *bol = buf.buf, *eol; |
| |
| while (*bol) { |
| eol = strchrnul(bol, '\n'); |
| fprintf(out, "%.*s %s\n", (int)(eol - bol), |
| bol, oid_to_hex(&newoid)); |
| if (!*eol) |
| break; |
| bol = eol + 1; |
| } |
| fclose(out); |
| unlink(rebase_path_rewritten_pending()); |
| } |
| strbuf_release(&buf); |
| } |
| |
| static void record_in_rewritten(struct object_id *oid, |
| enum todo_command next_command) { |
| FILE *out = fopen_or_warn(rebase_path_rewritten_pending(), "a"); |
| |
| if (!out) |
| return; |
| |
| fprintf(out, "%s\n", oid_to_hex(oid)); |
| fclose(out); |
| |
| if (!is_fixup(next_command)) |
| flush_rewritten_pending(); |
| } |
| |
| static int do_pick_commit(enum todo_command command, struct commit *commit, |
| struct replay_opts *opts, int final_fixup) |
| { |
| unsigned int flags = opts->edit ? EDIT_MSG : 0; |
| const char *msg_file = opts->edit ? NULL : git_path_merge_msg(the_repository); |
| struct object_id head; |
| struct commit *base, *next, *parent; |
| const char *base_label, *next_label; |
| char *author = NULL; |
| struct commit_message msg = { NULL, NULL, NULL, NULL }; |
| struct strbuf msgbuf = STRBUF_INIT; |
| int res, unborn = 0, allow; |
| |
| 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 |
| * that represents the "current" state for merge-recursive |
| * to work on. |
| */ |
| if (write_index_as_tree(&head, &the_index, get_index_file(), 0, NULL)) |
| return error(_("your index file is unmerged.")); |
| } else { |
| unborn = get_oid("HEAD", &head); |
| /* Do we want to generate a root commit? */ |
| if (is_pick_or_similar(command) && opts->have_squash_onto && |
| !oidcmp(&head, &opts->squash_onto)) { |
| if (is_fixup(command)) |
| return error(_("cannot fixup root commit")); |
| flags |= CREATE_ROOT_COMMIT; |
| unborn = 1; |
| } else if (unborn) |
| oidcpy(&head, the_hash_algo->empty_tree); |
| if (index_differs_from(unborn ? empty_tree_oid_hex() : "HEAD", |
| NULL, 0)) |
| return error_dirty_index(opts); |
| } |
| discard_cache(); |
| |
| if (!commit->parents) |
| parent = NULL; |
| else if (commit->parents->next) { |
| /* Reverting or cherry-picking a merge commit */ |
| int cnt; |
| struct commit_list *p; |
| |
| if (!opts->mainline) |
| return error(_("commit %s is a merge but no -m option was given."), |
| oid_to_hex(&commit->object.oid)); |
| |
| for (cnt = 1, p = commit->parents; |
| cnt != opts->mainline && p; |
| cnt++) |
| p = p->next; |
| if (cnt != opts->mainline || !p) |
| return error(_("commit %s does not have parent %d"), |
| oid_to_hex(&commit->object.oid), opts->mainline); |
| parent = p->item; |
| } else if (0 < opts->mainline) |
| return error(_("mainline was specified but commit %s is not a merge."), |
| oid_to_hex(&commit->object.oid)); |
| else |
| parent = commit->parents->item; |
| |
| if (get_message(commit, &msg) != 0) |
| return error(_("cannot get commit message for %s"), |
| oid_to_hex(&commit->object.oid)); |
| |
| if (opts->allow_ff && !is_fixup(command) && |
| ((parent && !oidcmp(&parent->object.oid, &head)) || |
| (!parent && unborn))) { |
| if (is_rebase_i(opts)) |
| write_author_script(msg.message); |
| res = fast_forward_to(&commit->object.oid, &head, unborn, |
| opts); |
| if (res || command != TODO_REWORD) |
| goto leave; |
| flags |= EDIT_MSG | AMEND_MSG | VERIFY_MSG; |
| msg_file = NULL; |
| goto fast_forward_edit; |
| } |
| if (parent && parse_commit(parent) < 0) |
| /* TRANSLATORS: The first %s will be a "todo" command like |
| "revert" or "pick", the second %s a SHA1. */ |
| return error(_("%s: cannot parse parent commit %s"), |
| command_to_string(command), |
| oid_to_hex(&parent->object.oid)); |
| |
| /* |
| * "commit" is an existing commit. We would want to apply |
| * the difference it introduces since its first parent "prev" |
| * on top of the current HEAD if we are cherry-pick. Or the |
| * reverse of it if we are revert. |
| */ |
| |
| if (command == TODO_REVERT) { |
| base = commit; |
| base_label = msg.label; |
| next = parent; |
| next_label = msg.parent_label; |
| strbuf_addstr(&msgbuf, "Revert \""); |
| strbuf_addstr(&msgbuf, msg.subject); |
| strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit "); |
| strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid)); |
| |
| if (commit->parents && commit->parents->next) { |
| strbuf_addstr(&msgbuf, ", reversing\nchanges made to "); |
| strbuf_addstr(&msgbuf, oid_to_hex(&parent->object.oid)); |
| } |
| strbuf_addstr(&msgbuf, ".\n"); |
| } else { |
| const char *p; |
| |
| base = parent; |
| base_label = msg.parent_label; |
| next = commit; |
| next_label = msg.label; |
| |
| /* Append the commit log message to msgbuf. */ |
| if (find_commit_subject(msg.message, &p)) |
| strbuf_addstr(&msgbuf, p); |
| |
| if (opts->record_origin) { |
| strbuf_complete_line(&msgbuf); |
| if (!has_conforming_footer(&msgbuf, NULL, 0)) |
| strbuf_addch(&msgbuf, '\n'); |
| strbuf_addstr(&msgbuf, cherry_picked_prefix); |
| strbuf_addstr(&msgbuf, oid_to_hex(&commit->object.oid)); |
| strbuf_addstr(&msgbuf, ")\n"); |
| } |
| if (!is_fixup(command)) |
| author = get_author(msg.message); |
| } |
| |
| if (command == TODO_REWORD) |
| flags |= EDIT_MSG | VERIFY_MSG; |
| else if (is_fixup(command)) { |
| if (update_squash_messages(command, commit, opts)) |
| return -1; |
| flags |= AMEND_MSG; |
| if (!final_fixup) |
| msg_file = rebase_path_squash_msg(); |
| else if (file_exists(rebase_path_fixup_msg())) { |
| flags |= CLEANUP_MSG; |
| msg_file = rebase_path_fixup_msg(); |
| } else { |
| const char *dest = git_path_squash_msg(the_repository); |
| unlink(dest); |
| if (copy_file(dest, rebase_path_squash_msg(), 0666)) |
| return error(_("could not rename '%s' to '%s'"), |
| rebase_path_squash_msg(), dest); |
| unlink(git_path_merge_msg(the_repository)); |
| msg_file = dest; |
| flags |= EDIT_MSG; |
| } |
| } |
| |
| if (opts->signoff && !is_fixup(command)) |
| append_signoff(&msgbuf, 0, 0); |
| |
| if (is_rebase_i(opts) && write_author_script(msg.message) < 0) |
| res = -1; |
| else if (!opts->strategy || !strcmp(opts->strategy, "recursive") || command == TODO_REVERT) { |
| res = do_recursive_merge(base, next, base_label, next_label, |
| &head, &msgbuf, opts); |
| if (res < 0) |
| goto leave; |
| |
| res |= write_message(msgbuf.buf, msgbuf.len, |
| git_path_merge_msg(the_repository), 0); |
| } else { |
| struct commit_list *common = NULL; |
| struct commit_list *remotes = NULL; |
| |
| res = write_message(msgbuf.buf, msgbuf.len, |
| git_path_merge_msg(the_repository), 0); |
| |
| commit_list_insert(base, &common); |
| commit_list_insert(next, &remotes); |
| res |= try_merge_command(opts->strategy, |
| opts->xopts_nr, (const char **)opts->xopts, |
| common, oid_to_hex(&head), remotes); |
| free_commit_list(common); |
| free_commit_list(remotes); |
| } |
| strbuf_release(&msgbuf); |
| |
| /* |
| * If the merge was clean or if it failed due to conflict, we write |
| * CHERRY_PICK_HEAD for the subsequent invocation of commit to use. |
| * However, if the merge did not even start, then we don't want to |
| * write it at all. |
| */ |
| if (command == TODO_PICK && !opts->no_commit && (res == 0 || res == 1) && |
| update_ref(NULL, "CHERRY_PICK_HEAD", &commit->object.oid, NULL, |
| REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) |
| res = -1; |
| if (command == TODO_REVERT && ((opts->no_commit && res == 0) || res == 1) && |
| update_ref(NULL, "REVERT_HEAD", &commit->object.oid, NULL, |
| REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) |
| res = -1; |
| |
| if (res) { |
| error(command == TODO_REVERT |
| ? _("could not revert %s... %s") |
| : _("could not apply %s... %s"), |
| short_commit_name(commit), msg.subject); |
| print_advice(res == 1, opts); |
| rerere(opts->allow_rerere_auto); |
| goto leave; |
| } |
| |
| allow = allow_empty(opts, commit); |
| if (allow < 0) { |
| res = allow; |
| goto leave; |
| } else if (allow) |
| flags |= ALLOW_EMPTY; |
| if (!opts->no_commit) { |
| fast_forward_edit: |
| if (author || command == TODO_REVERT || (flags & AMEND_MSG)) |
| res = do_commit(msg_file, author, opts, flags); |
| else |
| res = error(_("unable to parse commit author")); |
| } |
| |
| if (!res && final_fixup) { |
| unlink(rebase_path_fixup_msg()); |
| unlink(rebase_path_squash_msg()); |
| unlink(rebase_path_current_fixups()); |
| strbuf_reset(&opts->current_fixups); |
| opts->current_fixup_count = 0; |
| } |
| |
| leave: |
| free_message(commit, &msg); |
| free(author); |
| update_abort_safety_file(); |
| |
| return res; |
| } |
| |
| static int prepare_revs(struct replay_opts *opts) |
| { |
| /* |
| * picking (but not reverting) ranges (but not individual revisions) |
| * should be done in reverse |
| */ |
| if (opts->action == REPLAY_PICK && !opts->revs->no_walk) |
| opts->revs->reverse ^= 1; |
| |
| if (prepare_revision_walk(opts->revs)) |
| return error(_("revision walk setup failed")); |
| |
| return 0; |
| } |
| |
| static int read_and_refresh_cache(struct replay_opts *opts) |
| { |
| struct lock_file index_lock = LOCK_INIT; |
| int index_fd = hold_locked_index(&index_lock, 0); |
| if (read_index_preload(&the_index, NULL) < 0) { |
| rollback_lock_file(&index_lock); |
| return error(_("git %s: failed to read the index"), |
| _(action_name(opts))); |
| } |
| refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); |
| if (index_fd >= 0) { |
| if (write_locked_index(&the_index, &index_lock, |
| COMMIT_LOCK | SKIP_IF_UNCHANGED)) { |
| return error(_("git %s: failed to refresh the index"), |
| _(action_name(opts))); |
| } |
| } |
| return 0; |
| } |
| |
| enum todo_item_flags { |
| TODO_EDIT_MERGE_MSG = 1 |
| }; |
| |
| struct todo_item { |
| enum todo_command command; |
| struct commit *commit; |
| unsigned int flags; |
| const char *arg; |
| int arg_len; |
| size_t offset_in_buf; |
| }; |
| |
| struct todo_list { |
| struct strbuf buf; |
| struct todo_item *items; |
| int nr, alloc, current; |
| int done_nr, total_nr; |
| struct stat_data stat; |
| }; |
| |
| #define TODO_LIST_INIT { STRBUF_INIT } |
| |
| static void todo_list_release(struct todo_list *todo_list) |
| { |
| strbuf_release(&todo_list->buf); |
| FREE_AND_NULL(todo_list->items); |
| todo_list->nr = todo_list->alloc = 0; |
| } |
| |
| static struct todo_item *append_new_todo(struct todo_list *todo_list) |
| { |
| ALLOC_GROW(todo_list->items, todo_list->nr + 1, todo_list->alloc); |
| return todo_list->items + todo_list->nr++; |
| } |
| |
| static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) |
| { |
| struct object_id commit_oid; |
| char *end_of_object_name; |
| int i, saved, status, padding; |
| |
| item->flags = 0; |
| |
| /* left-trim */ |
| bol += strspn(bol, " \t"); |
| |
| if (bol == eol || *bol == '\r' || *bol == comment_line_char) { |
| item->command = TODO_COMMENT; |
| item->commit = NULL; |
| item->arg = bol; |
| item->arg_len = eol - bol; |
| return 0; |
| } |
| |
| for (i = 0; i < TODO_COMMENT; i++) |
| if (skip_prefix(bol, todo_command_info[i].str, &bol)) { |
| item->command = i; |
| break; |
| } else if (bol[1] == ' ' && *bol == todo_command_info[i].c) { |
| bol++; |
| item->command = i; |
| break; |
| } |
| if (i >= TODO_COMMENT) |
| return -1; |
| |
| /* Eat up extra spaces/ tabs before object name */ |
| padding = strspn(bol, " \t"); |
| bol += padding; |
| |
| if (item->command == TODO_NOOP) { |
| if (bol != eol) |
| return error(_("%s does not accept arguments: '%s'"), |
| command_to_string(item->command), bol); |
| item->commit = NULL; |
| item->arg = bol; |
| item->arg_len = eol - bol; |
| return 0; |
| } |
| |
| if (!padding) |
| return error(_("missing arguments for %s"), |
| command_to_string(item->command)); |
| |
| if (item->command == TODO_EXEC || item->command == TODO_LABEL || |
| item->command == TODO_RESET) { |
| item->commit = NULL; |
| item->arg = bol; |
| item->arg_len = (int)(eol - bol); |
| return 0; |
| } |
| |
| if (item->command == TODO_MERGE) { |
| if (skip_prefix(bol, "-C", &bol)) |
| bol += strspn(bol, " \t"); |
| else if (skip_prefix(bol, "-c", &bol)) { |
| bol += strspn(bol, " \t"); |
| item->flags |= TODO_EDIT_MERGE_MSG; |
| } else { |
| item->flags |= TODO_EDIT_MERGE_MSG; |
| item->commit = NULL; |
| item->arg = bol; |
| item->arg_len = (int)(eol - bol); |
| return 0; |
| } |
| } |
| |
| end_of_object_name = (char *) bol + strcspn(bol, " \t\n"); |
| saved = *end_of_object_name; |
| *end_of_object_name = '\0'; |
| status = get_oid(bol, &commit_oid); |
| *end_of_object_name = saved; |
| |
| item->arg = end_of_object_name + strspn(end_of_object_name, " \t"); |
| item->arg_len = (int)(eol - item->arg); |
| |
| if (status < 0) |
| return -1; |
| |
| item->commit = lookup_commit_reference(the_repository, &commit_oid); |
| return !item->commit; |
| } |
| |
| static int parse_insn_buffer(char *buf, struct todo_list *todo_list) |
| { |
| struct todo_item *item; |
| char *p = buf, *next_p; |
| int i, res = 0, fixup_okay = file_exists(rebase_path_done()); |
| |
| for (i = 1; *p; i++, p = next_p) { |
| char *eol = strchrnul(p, '\n'); |
| |
| next_p = *eol ? eol + 1 /* skip LF */ : eol; |
| |
| if (p != eol && eol[-1] == '\r') |
| eol--; /* strip Carriage Return */ |
| |
| item = append_new_todo(todo_list); |
| item->offset_in_buf = p - todo_list->buf.buf; |
| if (parse_insn_line(item, p, eol)) { |
| res = error(_("invalid line %d: %.*s"), |
| i, (int)(eol - p), p); |
| item->command = TODO_NOOP; |
| } |
| |
| if (fixup_okay) |
| ; /* do nothing */ |
| else if (is_fixup(item->command)) |
| return error(_("cannot '%s' without a previous commit"), |
| command_to_string(item->command)); |
| else if (!is_noop(item->command)) |
| fixup_okay = 1; |
| } |
| |
| return res; |
| } |
| |
| static int count_commands(struct todo_list *todo_list) |
| { |
| int count = 0, i; |
| |
| for (i = 0; i < todo_list->nr; i++) |
| if (todo_list->items[i].command != TODO_COMMENT) |
| count++; |
| |
| return count; |
| } |
| |
| static int get_item_line_offset(struct todo_list *todo_list, int index) |
| { |
| return index < todo_list->nr ? |
| todo_list->items[index].offset_in_buf : todo_list->buf.len; |
| } |
| |
| static const char *get_item_line(struct todo_list *todo_list, int index) |
| { |
| return todo_list->buf.buf + get_item_line_offset(todo_list, index); |
| } |
| |
| static int get_item_line_length(struct todo_list *todo_list, int index) |
| { |
| return get_item_line_offset(todo_list, index + 1) |
| - get_item_line_offset(todo_list, index); |
| } |
| |
| static ssize_t strbuf_read_file_or_whine(struct strbuf *sb, const char *path) |
| { |
| int fd; |
| ssize_t len; |
| |
| fd = open(path, O_RDONLY); |
| if (fd < 0) |
| return error_errno(_("could not open '%s'"), path); |
| len = strbuf_read(sb, fd, 0); |
| close(fd); |
| if (len < 0) |
| return error(_("could not read '%s'."), path); |
| return len; |
| } |
| |
| static int read_populate_todo(struct todo_list *todo_list, |
| struct replay_opts *opts) |
| { |
| struct stat st; |
| const char *todo_file = get_todo_path(opts); |
| int res; |
| |
| strbuf_reset(&todo_list->buf); |
| if (strbuf_read_file_or_whine(&todo_list->buf, todo_file) < 0) |
| return -1; |
| |
| res = stat(todo_file, &st); |
| if (res) |
| return error(_("could not stat '%s'"), todo_file); |
| fill_stat_data(&todo_list->stat, &st); |
| |
| res = parse_insn_buffer(todo_list->buf.buf, todo_list); |
| if (res) { |
| if (is_rebase_i(opts)) |
| return error(_("please fix this using " |
| "'git rebase --edit-todo'.")); |
| return error(_("unusable instruction sheet: '%s'"), todo_file); |
| } |
| |
| if (!todo_list->nr && |
| (!is_rebase_i(opts) || !file_exists(rebase_path_done()))) |
| return error(_("no commits parsed.")); |
| |
| if (!is_rebase_i(opts)) { |
| enum todo_command valid = |
| opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT; |
| int i; |
| |
| for (i = 0; i < todo_list->nr; i++) |
| if (valid == todo_list->items[i].command) |
| continue; |
| else if (valid == TODO_PICK) |
| return error(_("cannot cherry-pick during a revert.")); |
| else |
| return error(_("cannot revert during a cherry-pick.")); |
| } |
| |
| if (is_rebase_i(opts)) { |
| struct todo_list done = TODO_LIST_INIT; |
| FILE *f = fopen_or_warn(rebase_path_msgtotal(), "w"); |
| |
| if (strbuf_read_file(&done.buf, rebase_path_done(), 0) > 0 && |
| !parse_insn_buffer(done.buf.buf, &done)) |
| todo_list->done_nr = count_commands(&done); |
| else |
| todo_list->done_nr = 0; |
| |
| todo_list->total_nr = todo_list->done_nr |
| + count_commands(todo_list); |
| todo_list_release(&done); |
| |
| if (f) { |
| fprintf(f, "%d\n", todo_list->total_nr); |
| fclose(f); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int git_config_string_dup(char **dest, |
| const char *var, const char *value) |
| { |
| if (!value) |
| return config_error_nonbool(var); |
| free(*dest); |
| *dest = xstrdup(value); |
| return 0; |
| } |
| |
| 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_dup(&opts->strategy, key, value); |
| else if (!strcmp(key, "options.gpg-sign")) |
| git_config_string_dup(&opts->gpg_sign, 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 if (!strcmp(key, "options.allow-rerere-auto")) |
| opts->allow_rerere_auto = |
| git_config_bool_or_int(key, value, &error_flag) ? |
| RERERE_AUTOUPDATE : RERERE_NOAUTOUPDATE; |
| else |
| return error(_("invalid key: %s"), key); |
| |
| if (!error_flag) |
| return error(_("invalid value for %s: %s"), key, value); |
| |
| return 0; |
| } |
| |
| static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) |
| { |
| int i; |
| char *strategy_opts_string; |
| |
| strbuf_reset(buf); |
| if (!read_oneliner(buf, rebase_path_strategy(), 0)) |
| return; |
| opts->strategy = strbuf_detach(buf, NULL); |
| if (!read_oneliner(buf, rebase_path_strategy_opts(), 0)) |
| return; |
| |
| strategy_opts_string = buf->buf; |
| if (*strategy_opts_string == ' ') |
| strategy_opts_string++; |
| opts->xopts_nr = split_cmdline(strategy_opts_string, |
| (const char ***)&opts->xopts); |
| for (i = 0; i < opts->xopts_nr; i++) { |
| const char *arg = opts->xopts[i]; |
| |
| skip_prefix(arg, "--", &arg); |
| opts->xopts[i] = xstrdup(arg); |
| } |
| } |
| |
| static int read_populate_opts(struct replay_opts *opts) |
| { |
| if (is_rebase_i(opts)) { |
| struct strbuf buf = STRBUF_INIT; |
| |
| if (read_oneliner(&buf, rebase_path_gpg_sign_opt(), 1)) { |
| if (!starts_with(buf.buf, "-S")) |
| strbuf_reset(&buf); |
| else { |
| free(opts->gpg_sign); |
| opts->gpg_sign = xstrdup(buf.buf + 2); |
| } |
| strbuf_reset(&buf); |
| } |
| |
| if (read_oneliner(&buf, rebase_path_allow_rerere_autoupdate(), 1)) { |
| if (!strcmp(buf.buf, "--rerere-autoupdate")) |
| opts->allow_rerere_auto = RERERE_AUTOUPDATE; |
| else if (!strcmp(buf.buf, "--no-rerere-autoupdate")) |
| opts->allow_rerere_auto = RERERE_NOAUTOUPDATE; |
| strbuf_reset(&buf); |
| } |
| |
| if (file_exists(rebase_path_verbose())) |
| opts->verbose = 1; |
| |
| if (file_exists(rebase_path_signoff())) { |
| opts->allow_ff = 0; |
| opts->signoff = 1; |
| } |
| |
| read_strategy_opts(opts, &buf); |
| strbuf_release(&buf); |
| |
| if (read_oneliner(&opts->current_fixups, |
| rebase_path_current_fixups(), 1)) { |
| const char *p = opts->current_fixups.buf; |
| opts->current_fixup_count = 1; |
| while ((p = strchr(p, '\n'))) { |
| opts->current_fixup_count++; |
| p++; |
| } |
| } |
| |
| if (read_oneliner(&buf, rebase_path_squash_onto(), 0)) { |
| if (get_oid_hex(buf.buf, &opts->squash_onto) < 0) |
| return error(_("unusable squash-onto")); |
| opts->have_squash_onto = 1; |
| } |
| |
| return 0; |
| } |
| |
| if (!file_exists(git_path_opts_file())) |
| return 0; |
| /* |
| * The function git_parse_source(), called from git_config_from_file(), |
| * may die() in case of a syntactically incorrect file. We do not care |
| * about this case, though, because we wrote that file ourselves, so we |
| * are pretty certain that it is syntactically correct. |
| */ |
| if (git_config_from_file(populate_opts_cb, git_path_opts_file(), opts) < 0) |
| return error(_("malformed options sheet: '%s'"), |
| git_path_opts_file()); |
| return 0; |
| } |
| |
| static int walk_revs_populate_todo(struct todo_list *todo_list, |
| struct replay_opts *opts) |
| { |
| enum todo_command command = opts->action == REPLAY_PICK ? |
| TODO_PICK : TODO_REVERT; |
| const char *command_string = todo_command_info[command].str; |
| struct commit *commit; |
| |
| if (prepare_revs(opts)) |
| return -1; |
| |
| while ((commit = get_revision(opts->revs))) { |
| struct todo_item *item = append_new_todo(todo_list); |
| const char *commit_buffer = get_commit_buffer(commit, NULL); |
| const char *subject; |
| int subject_len; |
| |
| item->command = command; |
| item->commit = commit; |
| item->arg = NULL; |
| item->arg_len = 0; |
| 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); |
| unuse_commit_buffer(commit, commit_buffer); |
| } |
| |
| if (!todo_list->nr) |
| return error(_("empty commit set passed")); |
| |
| return 0; |
| } |
| |
| static int create_seq_dir(void) |
| { |
| if (file_exists(git_path_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(git_path_seq_dir(), 0777) < 0) |
| return error_errno(_("could not create sequencer directory '%s'"), |
| git_path_seq_dir()); |
| return 0; |
| } |
| |
| static int save_head(const char *head) |
| { |
| struct lock_file head_lock = LOCK_INIT; |
| struct strbuf buf = STRBUF_INIT; |
| int fd; |
| ssize_t written; |
| |
| fd = hold_lock_file_for_update(&head_lock, git_path_head_file(), 0); |
| if (fd < 0) |
| return error_errno(_("could not lock HEAD")); |
| strbuf_addf(&buf, "%s\n", head); |
| written = write_in_full(fd, buf.buf, buf.len); |
| strbuf_release(&buf); |
| if (written < 0) { |
| error_errno(_("could not write to '%s'"), git_path_head_file()); |
| rollback_lock_file(&head_lock); |
| return -1; |
| } |
| if (commit_lock_file(&head_lock) < 0) |
| return error(_("failed to finalize '%s'"), git_path_head_file()); |
| return 0; |
| } |
| |
| static int rollback_is_safe(void) |
| { |
| struct strbuf sb = STRBUF_INIT; |
| struct object_id expected_head, actual_head; |
| |
| if (strbuf_read_file(&sb, git_path_abort_safety_file(), 0) >= 0) { |
| strbuf_trim(&sb); |
| if (get_oid_hex(sb.buf, &expected_head)) { |
| strbuf_release(&sb); |
| die(_("could not parse %s"), git_path_abort_safety_file()); |
| } |
| strbuf_release(&sb); |
| } |
| else if (errno == ENOENT) |
| oidclr(&expected_head); |
| else |
| die_errno(_("could not read '%s'"), git_path_abort_safety_file()); |
| |
| if (get_oid("HEAD", &actual_head)) |
| oidclr(&actual_head); |
| |
| return !oidcmp(&actual_head, &expected_head); |
| } |
| |
| static int reset_for_rollback(const struct object_id *oid) |
| { |
| const char *argv[4]; /* reset --merge <arg> + NULL */ |
| |
| argv[0] = "reset"; |
| argv[1] = "--merge"; |
| argv[2] = oid_to_hex(oid); |
| argv[3] = NULL; |
| return run_command_v_opt(argv, RUN_GIT_CMD); |
| } |
| |
| static int rollback_single_pick(void) |
| { |
| struct object_id head_oid; |
| |
| if (!file_exists(git_path_cherry_pick_head(the_repository)) && |
| !file_exists(git_path_revert_head(the_repository))) |
| return error(_("no cherry-pick or revert in progress")); |
| if (read_ref_full("HEAD", 0, &head_oid, NULL)) |
| return error(_("cannot resolve HEAD")); |
| if (is_null_oid(&head_oid)) |
| return error(_("cannot abort from a branch yet to be born")); |
| return reset_for_rollback(&head_oid); |
| } |
| |
| int sequencer_rollback(struct replay_opts *opts) |
| { |
| FILE *f; |
| struct object_id oid; |
| struct strbuf buf = STRBUF_INIT; |
| const char *p; |
| |
| f = fopen(git_path_head_file(), "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_errno(_("cannot open '%s'"), git_path_head_file()); |
| if (strbuf_getline_lf(&buf, f)) { |
| error(_("cannot read '%s': %s"), git_path_head_file(), |
| ferror(f) ? strerror(errno) : _("unexpected end of file")); |
| fclose(f); |
| goto fail; |
| } |
| fclose(f); |
| if (parse_oid_hex(buf.buf, &oid, &p) || *p != '\0') { |
| error(_("stored pre-cherry-pick HEAD file '%s' is corrupt"), |
| git_path_head_file()); |
| goto fail; |
| } |
| if (is_null_oid(&oid)) { |
| error(_("cannot abort from a branch yet to be born")); |
| goto fail; |
| } |
| |
| if (!rollback_is_safe()) { |
| /* Do not error, just do not rollback */ |
| warning(_("You seem to have moved HEAD. " |
| "Not rewinding, check your HEAD!")); |
| } else |
| if (reset_for_rollback(&oid)) |
| goto fail; |
| strbuf_release(&buf); |
| return sequencer_remove_state(opts); |
| fail: |
| strbuf_release(&buf); |
| return -1; |
| } |
| |
| static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) |
| { |
| struct lock_file todo_lock = LOCK_INIT; |
| const char *todo_path = get_todo_path(opts); |
| int next = todo_list->current, offset, fd; |
| |
| /* |
| * rebase -i writes "git-rebase-todo" without the currently executing |
| * command, appending it to "done" instead. |
| */ |
| if (is_rebase_i(opts)) |
| next++; |
| |
| fd = hold_lock_file_for_update(&todo_lock, todo_path, 0); |
| if (fd < 0) |
| return error_errno(_("could not lock '%s'"), todo_path); |
| offset = get_item_line_offset(todo_list, next); |
| if (write_in_full(fd, todo_list->buf.buf + offset, |
| todo_list->buf.len - offset) < 0) |
| return error_errno(_("could not write to '%s'"), todo_path); |
| if (commit_lock_file(&todo_lock) < 0) |
| return error(_("failed to finalize '%s'"), todo_path); |
| |
| if (is_rebase_i(opts) && next > 0) { |
| const char *done = rebase_path_done(); |
| int fd = open(done, O_CREAT | O_WRONLY | O_APPEND, 0666); |
| int ret = 0; |
| |
| if (fd < 0) |
| return 0; |
| if (write_in_full(fd, get_item_line(todo_list, next - 1), |
| get_item_line_length(todo_list, next - 1)) |
| < 0) |
| ret = error_errno(_("could not write to '%s'"), done); |
| if (close(fd) < 0) |
| ret = error_errno(_("failed to finalize '%s'"), done); |
| return ret; |
| } |
| return 0; |
| } |
| |
| static int save_opts(struct replay_opts *opts) |
| { |
| const char *opts_file = git_path_opts_file(); |
| int res = 0; |
| |
| if (opts->no_commit) |
| res |= git_config_set_in_file_gently(opts_file, "options.no-commit", "true"); |
| if (opts->edit) |
| res |= git_config_set_in_file_gently(opts_file, "options.edit", "true"); |
| if (opts->signoff) |
| res |= git_config_set_in_file_gently(opts_file, "options.signoff", "true"); |
| if (opts->record_origin) |
| res |= git_config_set_in_file_gently(opts_file, "options.record-origin", "true"); |
| if (opts->allow_ff) |
| res |= git_config_set_in_file_gently(opts_file, "options.allow-ff", "true"); |
| if (opts->mainline) { |
| struct strbuf buf = STRBUF_INIT; |
| strbuf_addf(&buf, "%d", opts->mainline); |
| res |= git_config_set_in_file_gently(opts_file, "options.mainline", buf.buf); |
| strbuf_release(&buf); |
| } |
| if (opts->strategy) |
| res |= git_config_set_in_file_gently(opts_file, "options.strategy", opts->strategy); |
| if (opts->gpg_sign) |
| res |= git_config_set_in_file_gently(opts_file, "options.gpg-sign", opts->gpg_sign); |
| if (opts->xopts) { |
| int i; |
| for (i = 0; i < opts->xopts_nr; i++) |
| res |= git_config_set_multivar_in_file_gently(opts_file, |
| "options.strategy-option", |
| opts->xopts[i], "^$", 0); |
| } |
| if (opts->allow_rerere_auto) |
| res |= git_config_set_in_file_gently(opts_file, "options.allow-rerere-auto", |
| opts->allow_rerere_auto == RERERE_AUTOUPDATE ? |
| "true" : "false"); |
| return res; |
| } |
| |
| static int make_patch(struct commit *commit, struct replay_opts *opts) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| struct rev_info log_tree_opt; |
| const char *subject, *p; |
| int res = 0; |
| |
| p = short_commit_name(commit); |
| if (write_message(p, strlen(p), rebase_path_stopped_sha(), 1) < 0) |
| return -1; |
| if (update_ref("rebase", "REBASE_HEAD", &commit->object.oid, |
| NULL, REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) |
| res |= error(_("could not update %s"), "REBASE_HEAD"); |
| |
| strbuf_addf(&buf, "%s/patch", get_dir(opts)); |
| memset(&log_tree_opt, 0, sizeof(log_tree_opt)); |
| init_revisions(&log_tree_opt, NULL); |
| log_tree_opt.abbrev = 0; |
| log_tree_opt.diff = 1; |
| 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.use_color = GIT_COLOR_NEVER; |
| if (!log_tree_opt.diffopt.file) |
| res |= error_errno(_("could not open '%s'"), buf.buf); |
| 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)) { |
| const char *commit_buffer = get_commit_buffer(commit, NULL); |
| find_commit_subject(commit_buffer, &subject); |
| res |= write_message(subject, strlen(subject), buf.buf, 1); |
| unuse_commit_buffer(commit, commit_buffer); |
| } |
| strbuf_release(&buf); |
| |
| return res; |
| } |
| |
| static int intend_to_amend(void) |
| { |
| struct object_id head; |
| char *p; |
| |
| if (get_oid("HEAD", &head)) |
| return error(_("cannot read HEAD")); |
| |
| p = oid_to_hex(&head); |
| return write_message(p, strlen(p), rebase_path_amend(), 1); |
| } |
| |
| static int error_with_patch(struct commit *commit, |
| const char *subject, int subject_len, |
| struct replay_opts *opts, int exit_code, int to_amend) |
| { |
| if (commit) { |
| if (make_patch(commit, opts)) |
| return -1; |
| } else if (copy_file(rebase_path_message(), |
| git_path_merge_msg(the_repository), 0666)) |
| return error(_("unable to copy '%s' to '%s'"), |
| git_path_merge_msg(the_repository), rebase_path_message()); |
| |
| if (to_amend) { |
| if (intend_to_amend()) |
| return -1; |
| |
| fprintf(stderr, |
| _("You can amend the commit now, with\n" |
| "\n" |
| " git commit --amend %s\n" |
| "\n" |
| "Once you are satisfied with your changes, run\n" |
| "\n" |
| " git rebase --continue\n"), |
| gpg_sign_opt_quoted(opts)); |
| } else if (exit_code) { |
| if (commit) |
| fprintf_ln(stderr, _("Could not apply %s... %.*s"), |
| short_commit_name(commit), subject_len, subject); |
| else |
| /* |
| * We don't have the hash of the parent so |
| * just print the line from the todo file. |
| */ |
| fprintf_ln(stderr, _("Could not merge %.*s"), |
| subject_len, subject); |
| } |
| |
| return exit_code; |
| } |
| |
| static int error_failed_squash(struct commit *commit, |
| struct replay_opts *opts, int subject_len, const char *subject) |
| { |
| if (copy_file(rebase_path_message(), rebase_path_squash_msg(), 0666)) |
| return error(_("could not copy '%s' to '%s'"), |
| rebase_path_squash_msg(), rebase_path_message()); |
| unlink(git_path_merge_msg(the_repository)); |
| if (copy_file(git_path_merge_msg(the_repository), rebase_path_message(), 0666)) |
| return error(_("could not copy '%s' to '%s'"), |
| rebase_path_message(), |
| git_path_merge_msg(the_repository)); |
| return error_with_patch(commit, subject, subject_len, opts, 1, 0); |
| } |
| |
| static int do_exec(const char *command_line) |
| { |
| struct argv_array child_env = ARGV_ARRAY_INIT; |
| const char *child_argv[] = { NULL, NULL }; |
| int dirty, status; |
| |
| fprintf(stderr, "Executing: %s\n", command_line); |
| child_argv[0] = command_line; |
| argv_array_pushf(&child_env, "GIT_DIR=%s", absolute_path(get_git_dir())); |
| argv_array_pushf(&child_env, "GIT_WORK_TREE=%s", |
| absolute_path(get_git_work_tree())); |
| status = run_command_v_opt_cd_env(child_argv, RUN_USING_SHELL, NULL, |
| child_env.argv); |
| |
| /* force re-reading of the cache */ |
| if (discard_cache() < 0 || read_cache() < 0) |
| return error(_("could not read index")); |
| |
| dirty = require_clean_work_tree("rebase", NULL, 1, 1); |
| |
| if (status) { |
| warning(_("execution failed: %s\n%s" |
| "You can fix the problem, and then run\n" |
| "\n" |
| " git rebase --continue\n" |
| "\n"), |
| command_line, |
| dirty ? N_("and made changes to the index and/or the " |
| "working tree\n") : ""); |
| if (status == 127) |
| /* command not found */ |
| status = 1; |
| } else if (dirty) { |
| warning(_("execution succeeded: %s\nbut " |
| "left changes to the index and/or the working tree\n" |
| "Commit or stash your changes, and then run\n" |
| "\n" |
| " git rebase --continue\n" |
| "\n"), command_line); |
| status = 1; |
| } |
| |
| argv_array_clear(&child_env); |
| |
| return status; |
| } |
| |
| static int safe_append(const char *filename, const char *fmt, ...) |
| { |
| va_list ap; |
| struct lock_file lock = LOCK_INIT; |
| int fd = hold_lock_file_for_update(&lock, filename, |
| LOCK_REPORT_ON_ERROR); |
| struct strbuf buf = STRBUF_INIT; |
| |
| if (fd < 0) |
| return -1; |
| |
| if (strbuf_read_file(&buf, filename, 0) < 0 && errno != ENOENT) { |
| error_errno(_("could not read '%s'"), filename); |
| rollback_lock_file(&lock); |
| return -1; |
| } |
| strbuf_complete(&buf, '\n'); |
| va_start(ap, fmt); |
| strbuf_vaddf(&buf, fmt, ap); |
| va_end(ap); |
| |
| if (write_in_full(fd, buf.buf, buf.len) < 0) { |
| error_errno(_("could not write to '%s'"), filename); |
| strbuf_release(&buf); |
| rollback_lock_file(&lock); |
| return -1; |
| } |
| if (commit_lock_file(&lock) < 0) { |
| strbuf_release(&buf); |
| rollback_lock_file(&lock); |
| return error(_("failed to finalize '%s'"), filename); |
| } |
| |
| strbuf_release(&buf); |
| return 0; |
| } |
| |
| static int do_label(const char *name, int len) |
| { |
| struct ref_store *refs = get_main_ref_store(the_repository); |
| struct ref_transaction *transaction; |
| struct strbuf ref_name = STRBUF_INIT, err = STRBUF_INIT; |
| struct strbuf msg = STRBUF_INIT; |
| int ret = 0; |
| struct object_id head_oid; |
| |
| if (len == 1 && *name == '#') |
| return error(_("illegal label name: '%.*s'"), len, name); |
| |
| strbuf_addf(&ref_name, "refs/rewritten/%.*s", len, name); |
| strbuf_addf(&msg, "rebase -i (label) '%.*s'", len, name); |
| |
| transaction = ref_store_transaction_begin(refs, &err); |
| if (!transaction) { |
| error("%s", err.buf); |
| ret = -1; |
| } else if (get_oid("HEAD", &head_oid)) { |
| error(_("could not read HEAD")); |
| ret = -1; |
| } else if (ref_transaction_update(transaction, ref_name.buf, &head_oid, |
| NULL, 0, msg.buf, &err) < 0 || |
| ref_transaction_commit(transaction, &err)) { |
| error("%s", err.buf); |
| ret = -1; |
| } |
| ref_transaction_free(transaction); |
| strbuf_release(&err); |
| strbuf_release(&msg); |
| |
| if (!ret) |
| ret = safe_append(rebase_path_refs_to_delete(), |
| "%s\n", ref_name.buf); |
| strbuf_release(&ref_name); |
| |
| return ret; |
| } |
| |
| static const char *reflog_message(struct replay_opts *opts, |
| const char *sub_action, const char *fmt, ...); |
| |
| static int do_reset(const char *name, int len, struct replay_opts *opts) |
| { |
| struct strbuf ref_name = STRBUF_INIT; |
| struct object_id oid; |
| struct lock_file lock = LOCK_INIT; |
| struct tree_desc desc; |
| struct tree *tree; |
| struct unpack_trees_options unpack_tree_opts; |
| int ret = 0, i; |
| |
| if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) |
| return -1; |
| |
| if (len == 10 && !strncmp("[new root]", name, len)) { |
| if (!opts->have_squash_onto) { |
| const char *hex; |
| if (commit_tree("", 0, the_hash_algo->empty_tree, |
| NULL, &opts->squash_onto, |
| NULL, NULL)) |
| return error(_("writing fake root commit")); |
| opts->have_squash_onto = 1; |
| hex = oid_to_hex(&opts->squash_onto); |
| if (write_message(hex, strlen(hex), |
| rebase_path_squash_onto(), 0)) |
| return error(_("writing squash-onto")); |
| } |
| oidcpy(&oid, &opts->squash_onto); |
| } else { |
| /* Determine the length of the label */ |
| for (i = 0; i < len; i++) |
| if (isspace(name[i])) |
| len = i; |
| |
| strbuf_addf(&ref_name, "refs/rewritten/%.*s", len, name); |
| if (get_oid(ref_name.buf, &oid) && |
| get_oid(ref_name.buf + strlen("refs/rewritten/"), &oid)) { |
| error(_("could not read '%s'"), ref_name.buf); |
| rollback_lock_file(&lock); |
| strbuf_release(&ref_name); |
| return -1; |
| } |
| } |
| |
| memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts)); |
| setup_unpack_trees_porcelain(&unpack_tree_opts, "reset"); |
| unpack_tree_opts.head_idx = 1; |
| unpack_tree_opts.src_index = &the_index; |
| unpack_tree_opts.dst_index = &the_index; |
| unpack_tree_opts.fn = oneway_merge; |
| unpack_tree_opts.merge = 1; |
| unpack_tree_opts.update = 1; |
| |
| if (read_cache_unmerged()) { |
| rollback_lock_file(&lock); |
| strbuf_release(&ref_name); |
| return error_resolve_conflict(_(action_name(opts))); |
| } |
| |
| if (!fill_tree_descriptor(&desc, &oid)) |