This patch series reimplements the expensive pre- and post-processing of the todo script in C.
And it concludes the work I did to accelerate rebase -i. Changes since v3: - removed the no-longer-used transform_todo_ids shell function - simplified transform_todo_ids()'s command parsing - fixed two commits in check_todo_list(), renamed the unclear `raise_error` variable to `advise_to_edit_todo`, build the message about missing commits directly (without the detour to building a commit_list) and instead of assigning an unused pointer to commit->util the code now uses (void *)1. - return early from check_todo_list() when parsing failed, even if the check level is something else than CHECK_IGNORE - the todo list is generated is again generated in the same way as before when rebase.instructionFormat is empty: it was interpreted as if it had not been set - added a test for empty rebase.instructionFormat settings Johannes Schindelin (10): t3415: verify that an empty instructionFormat is handled as before rebase -i: generate the script via rebase--helper rebase -i: remove useless indentation rebase -i: do not invent onelines when expanding/collapsing SHA-1s rebase -i: also expand/collapse the SHA-1s via the rebase--helper t3404: relax rebase.missingCommitsCheck tests rebase -i: check for missing commits in the rebase--helper rebase -i: skip unnecessary picks using the rebase--helper t3415: test fixup with wrapped oneline rebase -i: rearrange fixup/squash lines using the rebase--helper Documentation/git-rebase.txt | 16 +- builtin/rebase--helper.c | 29 ++- git-rebase--interactive.sh | 373 ++++------------------------- sequencer.c | 530 ++++++++++++++++++++++++++++++++++++++++++ sequencer.h | 8 + t/t3404-rebase-interactive.sh | 22 +- t/t3415-rebase-autosquash.sh | 28 ++- 7 files changed, 646 insertions(+), 360 deletions(-) base-commit: 027a3b943b444a3e3a76f9a89803fc10245b858f Based-On: rebase--helper at https://github.com/dscho/git Fetch-Base-Via: git fetch https://github.com/dscho/git rebase--helper Published-As: https://github.com/dscho/git/releases/tag/rebase-i-extra-v4 Fetch-It-Via: git fetch https://github.com/dscho/git rebase-i-extra-v4 Interdiff vs v3: diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index d39fe4f5fb7..84c6e62518f 100644 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -713,29 +713,6 @@ do_rest () { done } -transform_todo_ids () { - while read -r command rest - do - case "$command" in - "$comment_char"* | exec) - # Be careful for oddball commands like 'exec' - # that do not have a SHA-1 at the beginning of $rest. - ;; - *) - sha1=$(git rev-parse --verify --quiet "$@" ${rest%%[ ]*}) && - if test "a$rest" = "a${rest#*[ ]}" - then - rest=$sha1 - else - rest="$sha1 ${rest#*[ ]}" - fi - ;; - esac - printf '%s\n' "$command${rest:+ }$rest" - done <"$todo" >"$todo.new" && - mv -f "$todo.new" "$todo" -} - expand_todo_ids() { git rebase--helper --expand-sha1s } diff --git a/sequencer.c b/sequencer.c index 84f8e366761..63a588f0916 100644 --- a/sequencer.c +++ b/sequencer.c @@ -2393,7 +2393,7 @@ void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag) int sequencer_make_script(int keep_empty, FILE *out, int argc, const char **argv) { - char *format = xstrdup("%s"); + char *format = NULL; struct pretty_print_context pp = {0}; struct strbuf buf = STRBUF_INIT; struct rev_info revs; @@ -2411,6 +2411,10 @@ int sequencer_make_script(int keep_empty, FILE *out, revs.pretty_given = 1; git_config_get_string("rebase.instructionFormat", &format); + if (!format || !*format) { + free(format); + format = xstrdup("%s"); + } get_commit_format(format, &revs); free(format); pp.fmt = revs.commit_format; @@ -2475,18 +2479,16 @@ int transform_todo_ids(int shorten_sha1s) if (item->command >= TODO_EXEC && item->command != TODO_DROP) fwrite(p, eol - bol, 1, out); else { - int eoc = strcspn(p, " \t"); const char *sha1 = shorten_sha1s ? short_commit_name(item->commit) : oid_to_hex(&item->commit->object.oid); + int len; - if (!eoc) { - p += strspn(p, " \t"); - eoc = strcspn(p, " \t"); - } + p += strspn(p, " \t"); /* left-trim command */ + len = strcspn(p, " \t"); /* length of command */ fprintf(out, "%.*s %s %.*s\n", - eoc, p, sha1, item->arg_len, item->arg); + len, p, sha1, item->arg_len, item->arg); } } fclose(out); @@ -2525,8 +2527,8 @@ int check_todo_list(void) enum check_level check_level = get_missing_commit_check_level(); struct strbuf todo_file = STRBUF_INIT; struct todo_list todo_list = TODO_LIST_INIT; - struct commit_list *missing = NULL; - int raise_error = 0, res = 0, fd, i; + struct strbuf missing = STRBUF_INIT; + int advise_to_edit_todo = 0, res = 0, fd, i; strbuf_addstr(&todo_file, rebase_path_todo()); fd = open(todo_file.buf, O_RDONLY); @@ -2540,17 +2542,17 @@ int check_todo_list(void) goto leave_check; } close(fd); - raise_error = res = + advise_to_edit_todo = res = parse_insn_buffer(todo_list.buf.buf, &todo_list); - if (check_level == CHECK_IGNORE) + if (res || check_level == CHECK_IGNORE) goto leave_check; - /* Get the SHA-1 of the commits */ + /* Mark the commits in git-rebase-todo as seen */ for (i = 0; i < todo_list.nr; i++) { struct commit *commit = todo_list.items[i].commit; if (commit) - commit->util = todo_list.items + i; + commit->util = (void *)1; } todo_list_release(&todo_list); @@ -2569,35 +2571,32 @@ int check_todo_list(void) strbuf_release(&todo_file); res = !!parse_insn_buffer(todo_list.buf.buf, &todo_list); - /* Find commits that are missing after editing */ - for (i = 0; i < todo_list.nr; i++) { - struct commit *commit = todo_list.items[i].commit; + /* Find commits in git-rebase-todo.backup yet unseen */ + for (i = todo_list.nr - 1; i >= 0; i--) { + struct todo_item *item = todo_list.items + i; + struct commit *commit = item->commit; if (commit && !commit->util) { - commit_list_insert(commit, &missing); - commit->util = todo_list.items + i; + strbuf_addf(&missing, " - %s %.*s\n", + short_commit_name(commit), + item->arg_len, item->arg); + commit->util = (void *)1; } } /* Warn about missing commits */ - if (!missing) + if (!missing.len) goto leave_check; if (check_level == CHECK_ERROR) - raise_error = res = 1; + advise_to_edit_todo = res = 1; fprintf(stderr, _("Warning: some commits may have been dropped accidentally.\n" "Dropped commits (newer to older):\n")); /* Make the list user-friendly and display */ - while (missing) { - struct commit *commit = pop_commit(&missing); - struct todo_item *item = commit->util; - - fprintf(stderr, " - %s %.*s\n", short_commit_name(commit), - item->arg_len, item->arg); - } - free_commit_list(missing); + fputs(missing.buf, stderr); + strbuf_release(&missing); fprintf(stderr, _("To avoid this message, use \"drop\" to " "explicitly remove a commit.\n\n" @@ -2609,7 +2608,7 @@ int check_todo_list(void) strbuf_release(&todo_file); todo_list_release(&todo_list); - if (raise_error) + if (advise_to_edit_todo) fprintf(stderr, _("You can fix this with 'git rebase --edit-todo' " "and then run 'git rebase --continue'.\n" diff --git a/t/t3415-rebase-autosquash.sh b/t/t3415-rebase-autosquash.sh index b9e26008a79..2f88f50c057 100755 --- a/t/t3415-rebase-autosquash.sh +++ b/t/t3415-rebase-autosquash.sh @@ -271,6 +271,18 @@ test_expect_success 'autosquash with custom inst format' ' test 2 = $(git cat-file commit HEAD^ | grep squash | wc -l) ' +test_expect_success 'autosquash with empty custom instructionFormat' ' + git reset --hard base && + test_commit empty-instructionFormat-test && + ( + set_cat_todo_editor && + test_must_fail git -c rebase.instructionFormat= \ + rebase --autosquash --force -i HEAD^ >actual && + git log -1 --format="pick %h %s" >expect && + test_cmp expect actual + ) +' + set_backup_editor () { write_script backup-editor.sh <<-\EOF cp "$1" .git/backup-"$(basename "$1")" -- 2.12.2.windows.2.800.gede8f145e06
