Merge branch 'jk/commit-die-on-bogus-ident' into maint
[gitweb.git] / builtin / commit.c
index 80c621dc061f9bb67a521dfb857ec52b536eacfd..3bcb4b7ec040c4896593b75b3e574951891d016f 100644 (file)
@@ -25,6 +25,7 @@
 #include "rerere.h"
 #include "unpack-trees.h"
 #include "quote.h"
+#include "submodule.h"
 
 static const char * const builtin_commit_usage[] = {
        "git commit [options] [--] <filepattern>...",
@@ -62,17 +63,16 @@ static struct lock_file false_lock; /* used only for partial commits */
 static enum {
        COMMIT_AS_IS = 1,
        COMMIT_NORMAL,
-       COMMIT_PARTIAL,
+       COMMIT_PARTIAL
 } commit_style;
 
 static const char *logfile, *force_author;
 static const char *template_file;
 static char *edit_message, *use_message;
-static char *author_name, *author_email, *author_date;
 static int all, edit_flag, also, interactive, only, amend, signoff;
 static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship;
-static int no_post_rewrite;
-static char *untracked_files_arg, *force_date;
+static int no_post_rewrite, allow_empty_message;
+static char *untracked_files_arg, *force_date, *ignore_submodule_arg;
 /*
  * The default commit message cleanup mode will remove the lines
  * beginning with # (shell comments) and leading and trailing
@@ -83,11 +83,12 @@ static char *untracked_files_arg, *force_date;
 static enum {
        CLEANUP_SPACE,
        CLEANUP_NONE,
-       CLEANUP_ALL,
+       CLEANUP_ALL
 } cleanup_mode;
 static char *cleanup_arg;
 
 static int use_editor = 1, initial_commit, in_merge, include_status = 1;
+static int show_ignored_in_status;
 static const char *only_include_assumed;
 static struct strbuf message;
 
@@ -95,8 +96,9 @@ static int null_termination;
 static enum {
        STATUS_FORMAT_LONG,
        STATUS_FORMAT_SHORT,
-       STATUS_FORMAT_PORCELAIN,
+       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)
 {
@@ -138,16 +140,23 @@ static struct option builtin_commit_options[] = {
        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,
                    "show porcelain output format", 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" },
-       OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
+       { 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()
 };
 
@@ -210,7 +219,7 @@ static int list_paths(struct string_list *list, const char *with_tree,
                        continue;
                if (!match_pathspec(pattern, ce->name, ce_namelen(ce), 0, m))
                        continue;
-               item = string_list_insert(ce->name, list);
+               item = string_list_insert(list, ce->name);
                if (ce_skip_worktree(ce))
                        item->util = item; /* better a valid pointer than a fake one */
        }
@@ -334,9 +343,13 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, int
        if (!pathspec || !*pathspec) {
                fd = hold_locked_index(&index_lock, 1);
                refresh_cache_or_die(refresh_flags);
-               if (write_cache(fd, active_cache, active_nr) ||
-                   commit_locked_index(&index_lock))
-                       die("unable to write new_index file");
+               if (active_cache_changed) {
+                       if (write_cache(fd, active_cache, active_nr) ||
+                           commit_locked_index(&index_lock))
+                               die("unable to write new_index file");
+               } else {
+                       rollback_lock_file(&index_lock);
+               }
                commit_style = COMMIT_AS_IS;
                return get_index_file();
        }
@@ -422,7 +435,7 @@ 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);
+               wt_shortstatus_print(s, null_termination, status_show_branch);
                break;
        case STATUS_FORMAT_PORCELAIN:
                wt_porcelain_print(s, null_termination);
@@ -445,7 +458,7 @@ static int is_a_merge(const unsigned char *sha1)
 
 static const char sign_off_header[] = "Signed-off-by: ";
 
-static void determine_author_info(void)
+static void determine_author_info(struct strbuf *author_ident)
 {
        char *name, *email, *date;
 
@@ -489,10 +502,8 @@ static void determine_author_info(void)
 
        if (force_date)
                date = force_date;
-
-       author_name = name;
-       author_email = email;
-       author_date = date;
+       strbuf_addstr(author_ident, fmt_ident(name, email, date,
+                                             IDENT_ERROR_ON_NO_NAME));
 }
 
 static int ends_rfc2822_footer(struct strbuf *sb)
@@ -536,10 +547,21 @@ static int ends_rfc2822_footer(struct strbuf *sb)
        return 1;
 }
 
+static char *cut_ident_timestamp_part(char *string)
+{
+       char *ket = strrchr(string, '>');
+       if (!ket || ket[1] != ' ')
+               die("Malformed ident string: '%s'", string);
+       *++ket = '\0';
+       return ket;
+}
+
 static int prepare_to_commit(const char *index_file, const char *prefix,
-                            struct wt_status *s)
+                            struct wt_status *s,
+                            struct strbuf *author_ident)
 {
        struct stat statbuf;
+       struct strbuf committer_ident = STRBUF_INIT;
        int commitable, saved_color_setting;
        struct strbuf sb = STRBUF_INIT;
        char *buffer;
@@ -623,14 +645,13 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 
        strbuf_release(&sb);
 
-       determine_author_info();
+       /* This checks and barfs if author is badly specified */
+       determine_author_info(author_ident);
 
        /* This checks if committer ident is explicitly given */
-       git_committer_info(0);
+       strbuf_addstr(&committer_ident, git_committer_info(0));
        if (use_editor && include_status) {
-               char *author_ident;
-               const char *committer_ident;
-
+               char *ai_tmp, *ci_tmp;
                if (in_merge)
                        fprintf(fp,
                                "#\n"
@@ -658,23 +679,21 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                if (only_include_assumed)
                        fprintf(fp, "# %s\n", only_include_assumed);
 
-               author_ident = xstrdup(fmt_name(author_name, author_email));
-               committer_ident = fmt_name(getenv("GIT_COMMITTER_NAME"),
-                                          getenv("GIT_COMMITTER_EMAIL"));
-               if (strcmp(author_ident, committer_ident))
+               ai_tmp = cut_ident_timestamp_part(author_ident->buf);
+               ci_tmp = cut_ident_timestamp_part(committer_ident.buf);
+               if (strcmp(author_ident->buf, committer_ident.buf))
                        fprintf(fp,
                                "%s"
                                "# Author:    %s\n",
                                ident_shown++ ? "" : "#\n",
-                               author_ident);
-               free(author_ident);
+                               author_ident->buf);
 
                if (!user_ident_sufficiently_given())
                        fprintf(fp,
                                "%s"
                                "# Committer: %s\n",
                                ident_shown++ ? "" : "#\n",
-                               committer_ident);
+                               committer_ident.buf);
 
                if (ident_shown)
                        fprintf(fp, "#\n");
@@ -683,6 +702,9 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                s->use_color = 0;
                commitable = run_status(fp, index_file, prefix, 1, s);
                s->use_color = saved_color_setting;
+
+               *ai_tmp = ' ';
+               *ci_tmp = ' ';
        } else {
                unsigned char sha1[20];
                const char *parent = "HEAD";
@@ -698,6 +720,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                else
                        commitable = index_differs_from(parent, 0);
        }
+       strbuf_release(&committer_ident);
 
        fclose(fp);
 
@@ -730,7 +753,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 
        if (use_editor) {
                char index[PATH_MAX];
-               const char *env[2] = { index, NULL };
+               const char *env[2] = { NULL };
+               env[0] =  index;
                snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
                if (launch_editor(git_path(commit_editmsg), NULL, env)) {
                        fprintf(stderr,
@@ -1036,6 +1060,8 @@ int cmd_status(int argc, const char **argv, const char *prefix)
                OPT__VERBOSE(&verbose),
                OPT_SET_INT('s', "short", &status_format,
                            "show status concisely", STATUS_FORMAT_SHORT),
+               OPT_BOOLEAN('b', "branch", &status_show_branch,
+                           "show branch information"),
                OPT_SET_INT(0, "porcelain", &status_format,
                            "show porcelain output format",
                            STATUS_FORMAT_PORCELAIN),
@@ -1045,6 +1071,11 @@ int cmd_status(int argc, const char **argv, const char *prefix)
                  "mode",
                  "show untracked files, optional modes: all, normal, no. (Default: all)",
                  PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
+               OPT_BOOLEAN(0, "ignored", &show_ignored_in_status,
+                           "show ignored files"),
+               { OPTION_STRING, 0, "ignore-submodules", &ignore_submodule_arg, "when",
+                 "ignore changes to submodules, optional when: all, dirty, untracked. (Default: all)",
+                 PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
                OPT_END(),
        };
 
@@ -1052,13 +1083,15 @@ int cmd_status(int argc, const char **argv, const char *prefix)
                status_format = STATUS_FORMAT_PORCELAIN;
 
        wt_status_prepare(&s);
+       gitmodules_config();
        git_config(git_status_config, &s);
        in_merge = file_exists(git_path("MERGE_HEAD"));
        argc = parse_options(argc, argv, prefix,
                             builtin_status_options,
                             builtin_status_usage, 0);
        handle_untracked_files_arg(&s);
-
+       if (show_ignored_in_status)
+               s.show_ignored_files = 1;
        if (*argv)
                s.pathspec = get_pathspec(prefix, argv);
 
@@ -1067,13 +1100,16 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 
        fd = hold_locked_index(&index_lock, 0);
        if (0 <= fd) {
-               if (!write_cache(fd, active_cache, active_nr))
+               if (active_cache_changed &&
+                   !write_cache(fd, active_cache, active_nr))
                        commit_locked_index(&index_lock);
-               rollback_lock_file(&index_lock);
+               else
+                       rollback_lock_file(&index_lock);
        }
 
        s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
        s.in_merge = in_merge;
+       s.ignore_submodule_arg = ignore_submodule_arg;
        wt_status_collect(&s);
 
        if (s.relative_paths)
@@ -1085,13 +1121,14 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 
        switch (status_format) {
        case STATUS_FORMAT_SHORT:
-               wt_shortstatus_print(&s, null_termination);
+               wt_shortstatus_print(&s, null_termination, status_show_branch);
                break;
        case STATUS_FORMAT_PORCELAIN:
                wt_porcelain_print(&s, null_termination);
                break;
        case STATUS_FORMAT_LONG:
                s.verbose = verbose;
+               s.ignore_submodule_arg = ignore_submodule_arg;
                wt_status_print(&s);
                break;
        }
@@ -1137,7 +1174,6 @@ static void print_summary(const char *prefix, const unsigned char *sha1)
        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;
@@ -1219,6 +1255,7 @@ static int run_rewrite_hook(const unsigned char *oldsha1,
 int cmd_commit(int argc, const char **argv, const char *prefix)
 {
        struct strbuf sb = STRBUF_INIT;
+       struct strbuf author_ident = STRBUF_INIT;
        const char *index_file, *reflog_msg;
        char *nl, *p;
        unsigned char commit_sha1[20];
@@ -1246,7 +1283,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
        /* Set up everything for writing the commit object.  This includes
           running hooks, writing the trees, and interacting with the user.  */
-       if (!prepare_to_commit(index_file, prefix, &s)) {
+       if (!prepare_to_commit(index_file, prefix, &s, &author_ident)) {
                rollback_index_files();
                return 1;
        }
@@ -1318,18 +1355,18 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
        if (cleanup_mode != CLEANUP_NONE)
                stripspace(&sb, cleanup_mode == CLEANUP_ALL);
-       if (message_is_empty(&sb)) {
+       if (message_is_empty(&sb) && !allow_empty_message) {
                rollback_index_files();
                fprintf(stderr, "Aborting commit due to empty commit message.\n");
                exit(1);
        }
 
        if (commit_tree(sb.buf, active_cache_tree->sha1, parents, commit_sha1,
-                       fmt_ident(author_name, author_email, author_date,
-                               IDENT_ERROR_ON_NO_NAME))) {
+                       author_ident.buf)) {
                rollback_index_files();
                die("failed to write commit object");
        }
+       strbuf_release(&author_ident);
 
        ref_lock = lock_any_ref_for_update("HEAD",
                                           initial_commit ? NULL : head_sha1,