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This makes git commit a builtin and moves git-commit.sh to contrib/examples. This also removes the git-runstatus helper, which was mostly just a git-status.sh implementation detail. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>maint
Kristian Høgsberg
17 years ago
committed by
Junio C Hamano
6 changed files with 621 additions and 9 deletions
@ -0,0 +1,614 @@ |
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/* |
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* Builtin "git commit" |
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* |
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* Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com> |
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* Based on git-commit.sh by Junio C Hamano and Linus Torvalds |
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*/ |
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#include "cache.h" |
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#include "cache-tree.h" |
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#include "builtin.h" |
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#include "diff.h" |
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#include "diffcore.h" |
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#include "commit.h" |
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#include "revision.h" |
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#include "wt-status.h" |
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#include "run-command.h" |
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#include "refs.h" |
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#include "log-tree.h" |
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#include "strbuf.h" |
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#include "utf8.h" |
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#include "parse-options.h" |
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static const char * const builtin_commit_usage[] = { |
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"git-commit [options] [--] <filepattern>...", |
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NULL |
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}; |
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static unsigned char head_sha1[20], merge_head_sha1[20]; |
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static char *use_message_buffer; |
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static const char commit_editmsg[] = "COMMIT_EDITMSG"; |
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static struct lock_file lock_file; |
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static char *logfile, *force_author, *message, *template_file; |
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static char *edit_message, *use_message; |
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static int all, edit_flag, also, interactive, only, amend, signoff; |
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static int quiet, verbose, untracked_files, no_verify; |
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static int no_edit, initial_commit, in_merge; |
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const char *only_include_assumed; |
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static struct option builtin_commit_options[] = { |
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OPT__QUIET(&quiet), |
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OPT__VERBOSE(&verbose), |
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OPT_GROUP("Commit message options"), |
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OPT_STRING('F', "file", &logfile, "FILE", "read log from file"), |
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OPT_STRING(0, "author", &force_author, "AUTHOR", "override author for commit"), |
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OPT_STRING('m', "message", &message, "MESSAGE", "specify commit message"), |
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OPT_STRING('c', "reedit-message", &edit_message, "COMMIT", "reuse and edit message from specified commit "), |
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OPT_STRING('C', "reuse-message", &use_message, "COMMIT", "reuse message from specified commit"), |
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OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by: header"), |
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OPT_STRING('t', "template", &template_file, "FILE", "use specified template file"), |
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OPT_BOOLEAN('e', "edit", &edit_flag, "force edit of commit"), |
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OPT_GROUP("Commit contents options"), |
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OPT_BOOLEAN('a', "all", &all, "commit all changed files"), |
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OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"), |
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OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"), |
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OPT_BOOLEAN('o', "only", &only, ""), |
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OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"), |
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OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"), |
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OPT_BOOLEAN(0, "untracked-files", &untracked_files, "show all untracked files"), |
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OPT_END() |
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}; |
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static char *prepare_index(const char **files, const char *prefix) |
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{ |
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int fd; |
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struct tree *tree; |
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struct lock_file *next_index_lock; |
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if (interactive) { |
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interactive_add(); |
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return get_index_file(); |
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} |
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fd = hold_locked_index(&lock_file, 1); |
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if (read_cache() < 0) |
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die("index file corrupt"); |
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if (all || also) { |
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add_files_to_cache(verbose, also ? prefix : NULL, files); |
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if (write_cache(fd, active_cache, active_nr) || close(fd)) |
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die("unable to write new_index file"); |
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return lock_file.filename; |
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} |
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if (*files == NULL) { |
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/* Commit index as-is. */ |
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rollback_lock_file(&lock_file); |
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return get_index_file(); |
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} |
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/* update the user index file */ |
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add_files_to_cache(verbose, prefix, files); |
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if (write_cache(fd, active_cache, active_nr) || close(fd)) |
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die("unable to write new_index file"); |
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if (!initial_commit) { |
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tree = parse_tree_indirect(head_sha1); |
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if (!tree) |
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die("failed to unpack HEAD tree object"); |
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if (read_tree(tree, 0, NULL)) |
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die("failed to read HEAD tree object"); |
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} |
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/* Use a lock file to garbage collect the temporary index file. */ |
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next_index_lock = xmalloc(sizeof(*next_index_lock)); |
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fd = hold_lock_file_for_update(next_index_lock, |
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git_path("next-index-%d", getpid()), 1); |
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add_files_to_cache(verbose, prefix, files); |
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if (write_cache(fd, active_cache, active_nr) || close(fd)) |
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die("unable to write new_index file"); |
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return next_index_lock->filename; |
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} |
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static int run_status(FILE *fp, const char *index_file) |
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{ |
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struct wt_status s; |
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wt_status_prepare(&s); |
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if (amend) { |
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s.amend = 1; |
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s.reference = "HEAD^1"; |
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} |
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s.verbose = verbose; |
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s.untracked = untracked_files; |
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s.index_file = index_file; |
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s.fp = fp; |
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wt_status_print(&s); |
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return s.commitable; |
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} |
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static const char sign_off_header[] = "Signed-off-by: "; |
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static int prepare_log_message(const char *index_file) |
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{ |
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struct stat statbuf; |
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int commitable; |
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struct strbuf sb; |
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char *buffer; |
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FILE *fp; |
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strbuf_init(&sb, 0); |
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if (message) { |
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strbuf_add(&sb, message, strlen(message)); |
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} else if (logfile && !strcmp(logfile, "-")) { |
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if (isatty(0)) |
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fprintf(stderr, "(reading log message from standard input)\n"); |
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if (strbuf_read(&sb, 0, 0) < 0) |
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die("could not read log from standard input"); |
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} else if (logfile) { |
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if (strbuf_read_file(&sb, logfile, 0) < 0) |
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die("could not read log file '%s': %s", |
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logfile, strerror(errno)); |
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} else if (use_message) { |
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buffer = strstr(use_message_buffer, "\n\n"); |
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if (!buffer || buffer[2] == '\0') |
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die("commit has empty message"); |
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strbuf_add(&sb, buffer + 2, strlen(buffer + 2)); |
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} else if (!stat(git_path("MERGE_MSG"), &statbuf)) { |
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if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0) |
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die("could not read MERGE_MSG: %s", strerror(errno)); |
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} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) { |
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if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0) |
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die("could not read SQUASH_MSG: %s", strerror(errno)); |
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} else if (template_file && !stat(template_file, &statbuf)) { |
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if (strbuf_read_file(&sb, template_file, 0) < 0) |
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die("could not read %s: %s", |
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template_file, strerror(errno)); |
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} |
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fp = fopen(git_path(commit_editmsg), "w"); |
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if (fp == NULL) |
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die("could not open %s\n", git_path(commit_editmsg)); |
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stripspace(&sb, 0); |
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if (fwrite(sb.buf, 1, sb.len, fp) < sb.len) |
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die("could not write commit template: %s\n", |
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strerror(errno)); |
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if (signoff) { |
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const char *info, *bol; |
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info = git_committer_info(1); |
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strbuf_addch(&sb, '\0'); |
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bol = strrchr(sb.buf + sb.len - 1, '\n'); |
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if (!bol || prefixcmp(bol, sign_off_header)) |
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fprintf(fp, "\n"); |
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fprintf(fp, "%s%s\n", sign_off_header, git_committer_info(1)); |
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} |
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strbuf_release(&sb); |
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if (in_merge && !no_edit) |
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fprintf(fp, |
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"#\n" |
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"# It looks like you may be committing a MERGE.\n" |
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"# If this is not correct, please remove the file\n" |
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"# %s\n" |
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"# and try again.\n" |
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"#\n", |
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git_path("MERGE_HEAD")); |
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fprintf(fp, |
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"\n" |
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"# Please enter the commit message for your changes.\n" |
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"# (Comment lines starting with '#' will not be included)\n"); |
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if (only_include_assumed) |
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fprintf(fp, "# %s\n", only_include_assumed); |
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commitable = run_status(fp, index_file); |
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fclose(fp); |
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return commitable; |
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} |
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/* |
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* Find out if the message starting at position 'start' in the strbuf |
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* contains only whitespace and Signed-off-by lines. |
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*/ |
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static int message_is_empty(struct strbuf *sb, int start) |
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{ |
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struct strbuf tmpl; |
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const char *nl; |
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int eol, i; |
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/* See if the template is just a prefix of the message. */ |
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strbuf_init(&tmpl, 0); |
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if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) { |
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stripspace(&tmpl, 1); |
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if (start + tmpl.len <= sb->len && |
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memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0) |
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start += tmpl.len; |
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} |
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strbuf_release(&tmpl); |
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/* Check if the rest is just whitespace and Signed-of-by's. */ |
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for (i = start; i < sb->len; i++) { |
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nl = memchr(sb->buf + i, '\n', sb->len - i); |
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if (nl) |
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eol = nl - sb->buf; |
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else |
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eol = sb->len; |
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if (strlen(sign_off_header) <= eol - i && |
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!prefixcmp(sb->buf + i, sign_off_header)) { |
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i = eol; |
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continue; |
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} |
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while (i < eol) |
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if (!isspace(sb->buf[i++])) |
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return 0; |
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} |
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return 1; |
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} |
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static void determine_author_info(struct strbuf *sb) |
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{ |
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char *name, *email, *date; |
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name = getenv("GIT_AUTHOR_NAME"); |
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email = getenv("GIT_AUTHOR_EMAIL"); |
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date = getenv("GIT_AUTHOR_DATE"); |
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if (use_message) { |
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const char *a, *lb, *rb, *eol; |
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a = strstr(use_message_buffer, "\nauthor "); |
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if (!a) |
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die("invalid commit: %s\n", use_message); |
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lb = strstr(a + 8, " <"); |
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rb = strstr(a + 8, "> "); |
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eol = strchr(a + 8, '\n'); |
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if (!lb || !rb || !eol) |
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die("invalid commit: %s\n", use_message); |
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name = xstrndup(a + 8, lb - (a + 8)); |
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email = xstrndup(lb + 2, rb - (lb + 2)); |
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date = xstrndup(rb + 2, eol - (rb + 2)); |
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} |
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if (force_author) { |
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const char *lb = strstr(force_author, " <"); |
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const char *rb = strchr(force_author, '>'); |
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if (!lb || !rb) |
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die("malformed --author parameter\n"); |
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name = xstrndup(force_author, lb - force_author); |
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email = xstrndup(lb + 2, rb - (lb + 2)); |
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} |
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strbuf_addf(sb, "author %s\n", fmt_ident(name, email, date, 1)); |
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} |
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static int parse_and_validate_options(int argc, const char *argv[]) |
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{ |
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int f = 0; |
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argc = parse_options(argc, argv, builtin_commit_options, |
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builtin_commit_usage, 0); |
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if (logfile || message || use_message) |
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no_edit = 1; |
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if (edit_flag) |
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no_edit = 0; |
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if (get_sha1("HEAD", head_sha1)) |
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initial_commit = 1; |
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if (!get_sha1("MERGE_HEAD", merge_head_sha1)) |
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in_merge = 1; |
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/* Sanity check options */ |
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if (amend && initial_commit) |
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die("You have nothing to amend."); |
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if (amend && in_merge) |
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die("You are in the middle of a merger -- cannot amend."); |
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if (use_message) |
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f++; |
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if (edit_message) |
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f++; |
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if (logfile) |
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f++; |
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if (f > 1) |
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die("Only one of -c/-C/-F can be used."); |
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if (message && f > 0) |
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die("Option -m cannot be combined with -c/-C/-F."); |
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if (edit_message) |
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use_message = edit_message; |
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if (amend) |
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use_message = "HEAD"; |
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if (use_message) { |
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unsigned char sha1[20]; |
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static char utf8[] = "UTF-8"; |
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const char *out_enc; |
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char *enc, *end; |
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struct commit *commit; |
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if (get_sha1(use_message, sha1)) |
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die("could not lookup commit %s", use_message); |
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commit = lookup_commit(sha1); |
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if (!commit || parse_commit(commit)) |
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die("could not parse commit %s", use_message); |
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enc = strstr(commit->buffer, "\nencoding"); |
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if (enc) { |
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end = strchr(enc + 10, '\n'); |
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enc = xstrndup(enc + 10, end - (enc + 10)); |
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} else { |
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enc = utf8; |
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} |
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out_enc = git_commit_encoding ? git_commit_encoding : utf8; |
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if (strcmp(out_enc, enc)) |
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use_message_buffer = |
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reencode_string(commit->buffer, out_enc, enc); |
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/* |
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* If we failed to reencode the buffer, just copy it |
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* byte for byte so the user can try to fix it up. |
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* This also handles the case where input and output |
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* encodings are identical. |
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*/ |
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if (use_message_buffer == NULL) |
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use_message_buffer = xstrdup(commit->buffer); |
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if (enc != utf8) |
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free(enc); |
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} |
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if (!!also + !!only + !!all + !!interactive > 1) |
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die("Only one of --include/--only/--all/--interactive can be used."); |
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if (argc == 0 && (also || (only && !amend))) |
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die("No paths with --include/--only does not make sense."); |
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if (argc == 0 && only && amend) |
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only_include_assumed = "Clever... amending the last one with dirty index."; |
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if (argc > 0 && !also && !only) { |
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only_include_assumed = "Explicit paths specified without -i nor -o; assuming --only paths..."; |
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also = 0; |
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} |
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if (all && argc > 0) |
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die("Paths with -a does not make sense."); |
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else if (interactive && argc > 0) |
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die("Paths with --interactive does not make sense."); |
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return argc; |
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} |
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int cmd_status(int argc, const char **argv, const char *prefix) |
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{ |
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const char *index_file; |
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int commitable; |
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git_config(git_status_config); |
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argc = parse_and_validate_options(argc, argv); |
||||||
|
|
||||||
|
index_file = prepare_index(argv, prefix); |
||||||
|
|
||||||
|
commitable = run_status(stdout, index_file); |
||||||
|
|
||||||
|
rollback_lock_file(&lock_file); |
||||||
|
|
||||||
|
return commitable ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
static int run_hook(const char *index_file, const char *name, const char *arg) |
||||||
|
{ |
||||||
|
struct child_process hook; |
||||||
|
const char *argv[3], *env[2]; |
||||||
|
char index[PATH_MAX]; |
||||||
|
|
||||||
|
argv[0] = git_path("hooks/%s", name); |
||||||
|
argv[1] = arg; |
||||||
|
argv[2] = NULL; |
||||||
|
snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file); |
||||||
|
env[0] = index; |
||||||
|
env[1] = NULL; |
||||||
|
|
||||||
|
if (access(argv[0], X_OK) < 0) |
||||||
|
return 0; |
||||||
|
|
||||||
|
memset(&hook, 0, sizeof(hook)); |
||||||
|
hook.argv = argv; |
||||||
|
hook.no_stdin = 1; |
||||||
|
hook.stdout_to_stderr = 1; |
||||||
|
hook.env = env; |
||||||
|
|
||||||
|
return run_command(&hook); |
||||||
|
} |
||||||
|
|
||||||
|
static void print_summary(const char *prefix, const unsigned char *sha1) |
||||||
|
{ |
||||||
|
struct rev_info rev; |
||||||
|
struct commit *commit; |
||||||
|
|
||||||
|
commit = lookup_commit(sha1); |
||||||
|
if (!commit) |
||||||
|
die("couldn't look up newly created commit\n"); |
||||||
|
if (!commit || parse_commit(commit)) |
||||||
|
die("could not parse newly created commit"); |
||||||
|
|
||||||
|
init_revisions(&rev, prefix); |
||||||
|
setup_revisions(0, NULL, &rev, NULL); |
||||||
|
|
||||||
|
rev.abbrev = 0; |
||||||
|
rev.diff = 1; |
||||||
|
rev.diffopt.output_format = |
||||||
|
DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY; |
||||||
|
|
||||||
|
rev.verbose_header = 1; |
||||||
|
rev.show_root_diff = 1; |
||||||
|
rev.commit_format = get_commit_format("format:%h: %s"); |
||||||
|
rev.always_show_header = 1; |
||||||
|
|
||||||
|
printf("Created %scommit ", initial_commit ? "initial " : ""); |
||||||
|
|
||||||
|
log_tree_commit(&rev, commit); |
||||||
|
} |
||||||
|
|
||||||
|
int git_commit_config(const char *k, const char *v) |
||||||
|
{ |
||||||
|
if (!strcmp(k, "commit.template")) { |
||||||
|
template_file = xstrdup(v); |
||||||
|
return 0; |
||||||
|
} |
||||||
|
|
||||||
|
return git_status_config(k, v); |
||||||
|
} |
||||||
|
|
||||||
|
static const char commit_utf8_warn[] = |
||||||
|
"Warning: commit message does not conform to UTF-8.\n" |
||||||
|
"You may want to amend it after fixing the message, or set the config\n" |
||||||
|
"variable i18n.commitencoding to the encoding your project uses.\n"; |
||||||
|
|
||||||
|
int cmd_commit(int argc, const char **argv, const char *prefix) |
||||||
|
{ |
||||||
|
int header_len, parent_count = 0; |
||||||
|
struct strbuf sb; |
||||||
|
const char *index_file, *reflog_msg; |
||||||
|
char *nl, *header_line; |
||||||
|
unsigned char commit_sha1[20]; |
||||||
|
struct ref_lock *ref_lock; |
||||||
|
|
||||||
|
git_config(git_commit_config); |
||||||
|
|
||||||
|
argc = parse_and_validate_options(argc, argv); |
||||||
|
|
||||||
|
index_file = prepare_index(argv, prefix); |
||||||
|
|
||||||
|
if (!no_verify && run_hook(index_file, "pre-commit", NULL)) |
||||||
|
exit(1); |
||||||
|
|
||||||
|
if (!prepare_log_message(index_file) && !in_merge) { |
||||||
|
run_status(stdout, index_file); |
||||||
|
unlink(commit_editmsg); |
||||||
|
return 1; |
||||||
|
} |
||||||
|
|
||||||
|
strbuf_init(&sb, 0); |
||||||
|
|
||||||
|
/* Start building up the commit header */ |
||||||
|
read_cache_from(index_file); |
||||||
|
active_cache_tree = cache_tree(); |
||||||
|
if (cache_tree_update(active_cache_tree, |
||||||
|
active_cache, active_nr, 0, 0) < 0) |
||||||
|
die("Error building trees"); |
||||||
|
strbuf_addf(&sb, "tree %s\n", |
||||||
|
sha1_to_hex(active_cache_tree->sha1)); |
||||||
|
|
||||||
|
/* Determine parents */ |
||||||
|
if (initial_commit) { |
||||||
|
reflog_msg = "commit (initial)"; |
||||||
|
parent_count = 0; |
||||||
|
} else if (amend) { |
||||||
|
struct commit_list *c; |
||||||
|
struct commit *commit; |
||||||
|
|
||||||
|
reflog_msg = "commit (amend)"; |
||||||
|
commit = lookup_commit(head_sha1); |
||||||
|
if (!commit || parse_commit(commit)) |
||||||
|
die("could not parse HEAD commit"); |
||||||
|
|
||||||
|
for (c = commit->parents; c; c = c->next) |
||||||
|
strbuf_addf(&sb, "parent %s\n", |
||||||
|
sha1_to_hex(c->item->object.sha1)); |
||||||
|
} else if (in_merge) { |
||||||
|
struct strbuf m; |
||||||
|
FILE *fp; |
||||||
|
|
||||||
|
reflog_msg = "commit (merge)"; |
||||||
|
strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1)); |
||||||
|
strbuf_init(&m, 0); |
||||||
|
fp = fopen(git_path("MERGE_HEAD"), "r"); |
||||||
|
if (fp == NULL) |
||||||
|
die("could not open %s for reading: %s", |
||||||
|
git_path("MERGE_HEAD"), strerror(errno)); |
||||||
|
while (strbuf_getline(&m, fp, '\n') != EOF) |
||||||
|
strbuf_addf(&sb, "parent %s\n", m.buf); |
||||||
|
fclose(fp); |
||||||
|
strbuf_release(&m); |
||||||
|
} else { |
||||||
|
reflog_msg = "commit"; |
||||||
|
strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1)); |
||||||
|
} |
||||||
|
|
||||||
|
determine_author_info(&sb); |
||||||
|
strbuf_addf(&sb, "committer %s\n", git_committer_info(1)); |
||||||
|
if (!is_encoding_utf8(git_commit_encoding)) |
||||||
|
strbuf_addf(&sb, "encoding %s\n", git_commit_encoding); |
||||||
|
strbuf_addch(&sb, '\n'); |
||||||
|
|
||||||
|
/* Get the commit message and validate it */ |
||||||
|
header_len = sb.len; |
||||||
|
if (!no_edit) { |
||||||
|
fprintf(stderr, "launching editor, log %s\n", logfile); |
||||||
|
launch_editor(git_path(commit_editmsg), &sb); |
||||||
|
} else if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) |
||||||
|
die("could not read commit message\n"); |
||||||
|
if (run_hook(index_file, "commit-msg", commit_editmsg)) |
||||||
|
exit(1); |
||||||
|
stripspace(&sb, 1); |
||||||
|
if (sb.len < header_len || |
||||||
|
message_is_empty(&sb, header_len)) |
||||||
|
die("* no commit message? aborting commit."); |
||||||
|
strbuf_addch(&sb, '\0'); |
||||||
|
if (is_encoding_utf8(git_commit_encoding) && !is_utf8(sb.buf)) |
||||||
|
fprintf(stderr, commit_utf8_warn); |
||||||
|
|
||||||
|
if (write_sha1_file(sb.buf, sb.len - 1, commit_type, commit_sha1)) |
||||||
|
die("failed to write commit object"); |
||||||
|
|
||||||
|
ref_lock = lock_any_ref_for_update("HEAD", |
||||||
|
initial_commit ? NULL : head_sha1, |
||||||
|
0); |
||||||
|
|
||||||
|
nl = strchr(sb.buf + header_len, '\n'); |
||||||
|
header_line = xstrndup(sb.buf + header_len, |
||||||
|
nl - (sb.buf + header_len)); |
||||||
|
strbuf_release(&sb); |
||||||
|
strbuf_addf(&sb, "%s: %s\n", reflog_msg, header_line); |
||||||
|
strbuf_addch(&sb, '\0'); |
||||||
|
free(header_line); |
||||||
|
|
||||||
|
if (!ref_lock) |
||||||
|
die("cannot lock HEAD ref"); |
||||||
|
if (write_ref_sha1(ref_lock, commit_sha1, sb.buf) < 0) |
||||||
|
die("cannot update HEAD ref"); |
||||||
|
|
||||||
|
unlink(git_path("MERGE_HEAD")); |
||||||
|
unlink(git_path("MERGE_MSG")); |
||||||
|
|
||||||
|
if (lock_file.filename[0] && commit_locked_index(&lock_file)) |
||||||
|
die("failed to write new index"); |
||||||
|
|
||||||
|
rerere(); |
||||||
|
|
||||||
|
run_hook(index_file, "post-commit", NULL); |
||||||
|
|
||||||
|
if (!quiet) |
||||||
|
print_summary(prefix, commit_sha1); |
||||||
|
|
||||||
|
return 0; |
||||||
|
} |
Loading…
Reference in new issue