status: respect "-b" for porcelain format
[gitweb.git] / builtin / commit.c
index eae5a29aeb4248b972f97632026993c25d5e03da..e2d9cbe3e387340e14103473e984f5b382df3134 100644 (file)
@@ -109,13 +109,11 @@ static int show_ignored_in_status;
 static const char *only_include_assumed;
 static struct strbuf message = STRBUF_INIT;
 
-static int null_termination;
 static enum {
        STATUS_FORMAT_LONG,
        STATUS_FORMAT_SHORT,
        STATUS_FORMAT_PORCELAIN
 } status_format = STATUS_FORMAT_LONG;
-static int status_show_branch;
 
 static int opt_parse_m(const struct option *opt, const char *arg, int unset)
 {
@@ -129,59 +127,6 @@ static int opt_parse_m(const struct option *opt, const char *arg, int unset)
        return 0;
 }
 
-static struct option builtin_commit_options[] = {
-       OPT__QUIET(&quiet, "suppress summary after successful commit"),
-       OPT__VERBOSE(&verbose, "show diff in commit message template"),
-
-       OPT_GROUP("Commit message options"),
-       OPT_FILENAME('F', "file", &logfile, "read message from file"),
-       OPT_STRING(0, "author", &force_author, "author", "override author for commit"),
-       OPT_STRING(0, "date", &force_date, "date", "override date for commit"),
-       OPT_CALLBACK('m', "message", &message, "message", "commit message", opt_parse_m),
-       OPT_STRING('c', "reedit-message", &edit_message, "commit", "reuse and edit message from specified commit"),
-       OPT_STRING('C', "reuse-message", &use_message, "commit", "reuse message from specified commit"),
-       OPT_STRING(0, "fixup", &fixup_message, "commit", "use autosquash formatted message to fixup specified commit"),
-       OPT_STRING(0, "squash", &squash_message, "commit", "use autosquash formatted message to squash specified commit"),
-       OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C/-c/--amend)"),
-       OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
-       OPT_FILENAME('t', "template", &template_file, "use specified template file"),
-       OPT_BOOL('e', "edit", &edit_flag, "force edit of commit"),
-       OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
-       OPT_BOOLEAN(0, "status", &include_status, "include status in commit message template"),
-       { OPTION_STRING, 'S', "gpg-sign", &sign_commit, "key id",
-         "GPG sign commit", PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
-       /* end commit message options */
-
-       OPT_GROUP("Commit contents options"),
-       OPT_BOOLEAN('a', "all", &all, "commit all changed files"),
-       OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"),
-       OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
-       OPT_BOOLEAN('p', "patch", &patch_interactive, "interactively add changes"),
-       OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
-       OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
-       OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"),
-       OPT_SET_INT(0, "short", &status_format, "show status concisely",
-                   STATUS_FORMAT_SHORT),
-       OPT_BOOLEAN(0, "branch", &status_show_branch, "show branch information"),
-       OPT_SET_INT(0, "porcelain", &status_format,
-                   "machine-readable output", STATUS_FORMAT_PORCELAIN),
-       OPT_BOOLEAN('z', "null", &null_termination,
-                   "terminate entries with NUL"),
-       OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
-       OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"),
-       { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
-       /* end commit contents options */
-
-       { OPTION_BOOLEAN, 0, "allow-empty", &allow_empty, NULL,
-         "ok to record an empty change",
-         PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
-       { OPTION_BOOLEAN, 0, "allow-empty-message", &allow_empty_message, NULL,
-         "ok to record a change with an empty message",
-         PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
-
-       OPT_END()
-};
-
 static void determine_whence(struct wt_status *s)
 {
        if (file_exists(git_path("MERGE_HEAD")))
@@ -400,7 +345,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
                fd = hold_locked_index(&index_lock, 1);
                add_files_to_cache(also ? prefix : NULL, pathspec, 0);
                refresh_cache_or_die(refresh_flags);
-               update_main_cache_tree(1);
+               update_main_cache_tree(WRITE_TREE_SILENT);
                if (write_cache(fd, active_cache, active_nr) ||
                    close_lock_file(&index_lock))
                        die(_("unable to write new_index file"));
@@ -421,7 +366,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
                fd = hold_locked_index(&index_lock, 1);
                refresh_cache_or_die(refresh_flags);
                if (active_cache_changed) {
-                       update_main_cache_tree(1);
+                       update_main_cache_tree(WRITE_TREE_SILENT);
                        if (write_cache(fd, active_cache, active_nr) ||
                            commit_locked_index(&index_lock))
                                die(_("unable to write new_index file"));
@@ -513,10 +458,10 @@ static int run_status(FILE *fp, const char *index_file, const char *prefix, int
 
        switch (status_format) {
        case STATUS_FORMAT_SHORT:
-               wt_shortstatus_print(s, null_termination, status_show_branch);
+               wt_shortstatus_print(s);
                break;
        case STATUS_FORMAT_PORCELAIN:
-               wt_porcelain_print(s, null_termination);
+               wt_porcelain_print(s);
                break;
        case STATUS_FORMAT_LONG:
                wt_status_print(s);
@@ -533,9 +478,20 @@ static int is_a_merge(const struct commit *current_head)
 
 static const char sign_off_header[] = "Signed-off-by: ";
 
+static void export_one(const char *var, const char *s, const char *e, int hack)
+{
+       struct strbuf buf = STRBUF_INIT;
+       if (hack)
+               strbuf_addch(&buf, hack);
+       strbuf_addf(&buf, "%.*s", (int)(e - s), s);
+       setenv(var, buf.buf, 1);
+       strbuf_release(&buf);
+}
+
 static void determine_author_info(struct strbuf *author_ident)
 {
        char *name, *email, *date;
+       struct ident_split author;
 
        name = getenv("GIT_AUTHOR_NAME");
        email = getenv("GIT_AUTHOR_EMAIL");
@@ -585,6 +541,11 @@ static void determine_author_info(struct strbuf *author_ident)
                date = force_date;
        strbuf_addstr(author_ident, fmt_ident(name, email, date,
                                              IDENT_ERROR_ON_NO_NAME));
+       if (!split_ident_line(&author, author_ident->buf, author_ident->len)) {
+               export_one("GIT_AUTHOR_NAME", author.name_begin, author.name_end, 0);
+               export_one("GIT_AUTHOR_EMAIL", author.mail_begin, author.mail_end, 0);
+               export_one("GIT_AUTHOR_DATE", author.date_begin, author.tz_end, '@');
+       }
 }
 
 static int ends_rfc2822_footer(struct strbuf *sb)
@@ -652,6 +613,9 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        int ident_shown = 0;
        int clean_message_contents = (cleanup_mode != CLEANUP_NONE);
 
+       /* This checks and barfs if author is badly specified */
+       determine_author_info(author_ident);
+
        if (!no_verify && run_hook(index_file, "pre-commit", NULL))
                return 0;
 
@@ -771,9 +735,6 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 
        strbuf_release(&sb);
 
-       /* This checks and barfs if author is badly specified */
-       determine_author_info(author_ident);
-
        /* This checks if committer ident is explicitly given */
        strbuf_addstr(&committer_ident, git_committer_info(0));
        if (use_editor && include_status) {
@@ -905,27 +866,10 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        return 1;
 }
 
-/*
- * Find out if the message in the strbuf contains only whitespace and
- * Signed-off-by lines.
- */
-static int message_is_empty(struct strbuf *sb)
+static int rest_is_empty(struct strbuf *sb, int start)
 {
-       struct strbuf tmpl = STRBUF_INIT;
+       int i, eol;
        const char *nl;
-       int eol, i, start = 0;
-
-       if (cleanup_mode == CLEANUP_NONE && sb->len)
-               return 0;
-
-       /* See if the template is just a prefix of the message. */
-       if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) {
-               stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
-               if (start + tmpl.len <= sb->len &&
-                   memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0)
-                       start += tmpl.len;
-       }
-       strbuf_release(&tmpl);
 
        /* Check if the rest is just whitespace and Signed-of-by's. */
        for (i = start; i < sb->len; i++) {
@@ -948,6 +892,40 @@ static int message_is_empty(struct strbuf *sb)
        return 1;
 }
 
+/*
+ * Find out if the message in the strbuf contains only whitespace and
+ * Signed-off-by lines.
+ */
+static int message_is_empty(struct strbuf *sb)
+{
+       if (cleanup_mode == 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
+ */
+static int template_untouched(struct strbuf *sb)
+{
+       struct strbuf tmpl = STRBUF_INIT;
+       char *start;
+
+       if (cleanup_mode == CLEANUP_NONE && sb->len)
+               return 0;
+
+       if (!template_file || strbuf_read_file(&tmpl, template_file, 0) <= 0)
+               return 0;
+
+       stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
+       start = (char *)skip_prefix(sb->buf, tmpl.buf);
+       if (!start)
+               start = sb->buf;
+       strbuf_release(&tmpl);
+       return rest_is_empty(sb, start - sb->buf);
+}
+
 static const char *find_author_by_nickname(const char *name)
 {
        struct rev_info revs;
@@ -1013,6 +991,7 @@ static const char *read_commit_message(const char *name)
 }
 
 static int parse_and_validate_options(int argc, const char *argv[],
+                                     const struct option *options,
                                      const char * const usage[],
                                      const char *prefix,
                                      struct commit *current_head,
@@ -1020,8 +999,7 @@ static int parse_and_validate_options(int argc, const char *argv[],
 {
        int f = 0;
 
-       argc = parse_options(argc, argv, prefix, builtin_commit_options, usage,
-                            0);
+       argc = parse_options(argc, argv, prefix, options, usage, 0);
 
        if (force_author && !strchr(force_author, '>'))
                force_author = find_author_by_nickname(force_author);
@@ -1055,6 +1033,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
                die(_("Only one of -c/-C/-F/--fixup can be used."));
        if (message.len && f > 0)
                die((_("Option -m cannot be combined with -c/-C/-F/--fixup.")));
+       if (f || message.len)
+               template_file = NULL;
        if (edit_message)
                use_message = edit_message;
        if (amend && !use_message && !fixup_message)
@@ -1100,7 +1080,7 @@ static int parse_and_validate_options(int argc, const char *argv[],
        if (all && argc > 0)
                die(_("Paths with -a does not make sense."));
 
-       if (null_termination && status_format == STATUS_FORMAT_LONG)
+       if (s->null_termination && status_format == STATUS_FORMAT_LONG)
                status_format = STATUS_FORMAT_PORCELAIN;
        if (status_format != STATUS_FORMAT_LONG)
                dry_run = 1;
@@ -1187,19 +1167,19 @@ static int git_status_config(const char *k, const char *v, void *cb)
 
 int cmd_status(int argc, const char **argv, const char *prefix)
 {
-       struct wt_status s;
+       static struct wt_status s;
        int fd;
        unsigned char sha1[20];
        static struct option builtin_status_options[] = {
                OPT__VERBOSE(&verbose, "be verbose"),
                OPT_SET_INT('s', "short", &status_format,
                            "show status concisely", STATUS_FORMAT_SHORT),
-               OPT_BOOLEAN('b', "branch", &status_show_branch,
+               OPT_BOOLEAN('b', "branch", &s.show_branch,
                            "show branch information"),
                OPT_SET_INT(0, "porcelain", &status_format,
                            "machine-readable output",
                            STATUS_FORMAT_PORCELAIN),
-               OPT_BOOLEAN('z', "null", &null_termination,
+               OPT_BOOLEAN('z', "null", &s.null_termination,
                            "terminate entries with NUL"),
                { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg,
                  "mode",
@@ -1224,7 +1204,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
                             builtin_status_options,
                             builtin_status_usage, 0);
 
-       if (null_termination && status_format == STATUS_FORMAT_LONG)
+       if (s.null_termination && status_format == STATUS_FORMAT_LONG)
                status_format = STATUS_FORMAT_PORCELAIN;
 
        handle_untracked_files_arg(&s);
@@ -1249,10 +1229,10 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 
        switch (status_format) {
        case STATUS_FORMAT_SHORT:
-               wt_shortstatus_print(&s, null_termination, status_show_branch);
+               wt_shortstatus_print(&s);
                break;
        case STATUS_FORMAT_PORCELAIN:
-               wt_porcelain_print(&s, null_termination);
+               wt_porcelain_print(&s);
                break;
        case STATUS_FORMAT_LONG:
                s.verbose = verbose;
@@ -1387,6 +1367,60 @@ static int run_rewrite_hook(const unsigned char *oldsha1,
 
 int cmd_commit(int argc, const char **argv, const char *prefix)
 {
+       static struct wt_status s;
+       static struct option builtin_commit_options[] = {
+               OPT__QUIET(&quiet, "suppress summary after successful commit"),
+               OPT__VERBOSE(&verbose, "show diff in commit message template"),
+
+               OPT_GROUP("Commit message options"),
+               OPT_FILENAME('F', "file", &logfile, "read message from file"),
+               OPT_STRING(0, "author", &force_author, "author", "override author for commit"),
+               OPT_STRING(0, "date", &force_date, "date", "override date for commit"),
+               OPT_CALLBACK('m', "message", &message, "message", "commit message", opt_parse_m),
+               OPT_STRING('c', "reedit-message", &edit_message, "commit", "reuse and edit message from specified commit"),
+               OPT_STRING('C', "reuse-message", &use_message, "commit", "reuse message from specified commit"),
+               OPT_STRING(0, "fixup", &fixup_message, "commit", "use autosquash formatted message to fixup specified commit"),
+               OPT_STRING(0, "squash", &squash_message, "commit", "use autosquash formatted message to squash specified commit"),
+               OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C/-c/--amend)"),
+               OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
+               OPT_FILENAME('t', "template", &template_file, "use specified template file"),
+               OPT_BOOL('e', "edit", &edit_flag, "force edit of commit"),
+               OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
+               OPT_BOOLEAN(0, "status", &include_status, "include status in commit message template"),
+               { OPTION_STRING, 'S', "gpg-sign", &sign_commit, "key id",
+                 "GPG sign commit", PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
+               /* end commit message options */
+
+               OPT_GROUP("Commit contents options"),
+               OPT_BOOLEAN('a', "all", &all, "commit all changed files"),
+               OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"),
+               OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
+               OPT_BOOLEAN('p', "patch", &patch_interactive, "interactively add changes"),
+               OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
+               OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
+               OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"),
+               OPT_SET_INT(0, "short", &status_format, "show status concisely",
+                           STATUS_FORMAT_SHORT),
+               OPT_BOOLEAN(0, "branch", &s.show_branch, "show branch information"),
+               OPT_SET_INT(0, "porcelain", &status_format,
+                           "machine-readable output", STATUS_FORMAT_PORCELAIN),
+               OPT_BOOLEAN('z', "null", &s.null_termination,
+                           "terminate entries with NUL"),
+               OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
+               OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"),
+               { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
+               /* end commit contents options */
+
+               { OPTION_BOOLEAN, 0, "allow-empty", &allow_empty, NULL,
+                 "ok to record an empty change",
+                 PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
+               { OPTION_BOOLEAN, 0, "allow-empty-message", &allow_empty_message, NULL,
+                 "ok to record a change with an empty message",
+                 PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
+
+               OPT_END()
+       };
+
        struct strbuf sb = STRBUF_INIT;
        struct strbuf author_ident = STRBUF_INIT;
        const char *index_file, *reflog_msg;
@@ -1396,7 +1430,6 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
        struct commit_list *parents = NULL, **pptr = &parents;
        struct stat statbuf;
        int allow_fast_forward = 1;
-       struct wt_status s;
        struct commit *current_head = NULL;
        struct commit_extra_header *extra = NULL;
 
@@ -1414,7 +1447,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
                if (!current_head || parse_commit(current_head))
                        die(_("could not parse HEAD commit"));
        }
-       argc = parse_and_validate_options(argc, argv, builtin_commit_usage,
+       argc = parse_and_validate_options(argc, argv, builtin_commit_options,
+                                         builtin_commit_usage,
                                          prefix, current_head, &s);
        if (dry_run)
                return dry_run_commit(argc, argv, prefix, current_head, &s);
@@ -1494,6 +1528,11 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
        if (cleanup_mode != CLEANUP_NONE)
                stripspace(&sb, cleanup_mode == CLEANUP_ALL);
+       if (template_untouched(&sb) && !allow_empty_message) {
+               rollback_index_files();
+               fprintf(stderr, _("Aborting commit; you did not edit the message.\n"));
+               exit(1);
+       }
        if (message_is_empty(&sb) && !allow_empty_message) {
                rollback_index_files();
                fprintf(stderr, _("Aborting commit due to empty commit message.\n"));