Merge branch 'ks/blame-worktree-textconv-cached'
[gitweb.git] / builtin / commit.c
index 3d99cf91587593ecce56a603ca064888cdd60988..6c09857a602193857cf8907c1c1c2574053e29e1 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>...",
@@ -68,11 +69,12 @@ static enum {
 static const char *logfile, *force_author;
 static const char *template_file;
 static char *edit_message, *use_message;
+static char *fixup_message, *squash_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, allow_empty_message;
-static char *untracked_files_arg, *force_date;
+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
@@ -113,8 +115,8 @@ static int opt_parse_m(const struct option *opt, const char *arg, int unset)
 }
 
 static struct option builtin_commit_options[] = {
-       OPT__QUIET(&quiet),
-       OPT__VERBOSE(&verbose),
+       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 log from file"),
@@ -123,6 +125,8 @@ static struct option builtin_commit_options[] = {
        OPT_CALLBACK('m', "message", &message, "MESSAGE", "specify 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"),
@@ -147,7 +151,7 @@ static struct option builtin_commit_options[] = {
                    "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" },
+       { 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,
@@ -219,7 +223,7 @@ 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 */
        }
@@ -343,9 +347,13 @@ 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();
        }
@@ -560,6 +568,25 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        if (!no_verify && run_hook(index_file, "pre-commit", NULL))
                return 0;
 
+       if (squash_message) {
+               /*
+                * Insert the proper subject line before other commit
+                * message options add their content.
+                */
+               if (use_message && !strcmp(use_message, squash_message))
+                       strbuf_addstr(&sb, "squash! ");
+               else {
+                       struct pretty_print_context ctx = {0};
+                       struct commit *c;
+                       c = lookup_commit_reference_by_name(squash_message);
+                       if (!c)
+                               die("could not lookup commit %s", squash_message);
+                       ctx.output_encoding = get_commit_output_encoding();
+                       format_commit_message(c, "squash! %s\n\n", &sb,
+                                             &ctx);
+               }
+       }
+
        if (message.len) {
                strbuf_addbuf(&sb, &message);
                hook_arg1 = "message";
@@ -581,6 +608,16 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
                hook_arg1 = "commit";
                hook_arg2 = use_message;
+       } else if (fixup_message) {
+               struct pretty_print_context ctx = {0};
+               struct commit *commit;
+               commit = lookup_commit_reference_by_name(fixup_message);
+               if (!commit)
+                       die("could not lookup commit %s", fixup_message);
+               ctx.output_encoding = get_commit_output_encoding();
+               format_commit_message(commit, "fixup! %s\n\n",
+                                     &sb, &ctx);
+               hook_arg1 = "message";
        } else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
                if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
                        die_errno("could not read MERGE_MSG");
@@ -602,6 +639,16 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        else if (in_merge)
                hook_arg1 = "merge";
 
+       if (squash_message) {
+               /*
+                * If squash_commit was used for the commit subject,
+                * then we're possibly hijacking other commit log options.
+                * Reset the hook args to tell the real story.
+                */
+               hook_arg1 = "message";
+               hook_arg2 = "";
+       }
+
        fp = fopen(git_path(commit_editmsg), "w");
        if (fp == NULL)
                die_errno("could not open '%s'", git_path(commit_editmsg));
@@ -858,7 +905,7 @@ static int parse_and_validate_options(int argc, const char *argv[],
        if (force_author && renew_authorship)
                die("Using both --reset-author and --author does not make sense");
 
-       if (logfile || message.len || use_message)
+       if (logfile || message.len || use_message || fixup_message)
                use_editor = 0;
        if (edit_flag)
                use_editor = 1;
@@ -873,48 +920,35 @@ static int parse_and_validate_options(int argc, const char *argv[],
                die("You have nothing to amend.");
        if (amend && in_merge)
                die("You are in the middle of a merge -- cannot amend.");
-
+       if (fixup_message && squash_message)
+               die("Options --squash and --fixup cannot be used together");
        if (use_message)
                f++;
        if (edit_message)
                f++;
+       if (fixup_message)
+               f++;
        if (logfile)
                f++;
        if (f > 1)
-               die("Only one of -c/-C/-F can be used.");
+               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.");
+               die("Option -m cannot be combined with -c/-C/-F/--fixup.");
        if (edit_message)
                use_message = edit_message;
-       if (amend && !use_message)
+       if (amend && !use_message && !fixup_message)
                use_message = "HEAD";
        if (!use_message && renew_authorship)
                die("--reset-author can be used only with -C, -c or --amend.");
        if (use_message) {
-               unsigned char sha1[20];
-               static char utf8[] = "UTF-8";
                const char *out_enc;
-               char *enc, *end;
                struct commit *commit;
 
-               if (get_sha1(use_message, sha1))
+               commit = lookup_commit_reference_by_name(use_message);
+               if (!commit)
                        die("could not lookup commit %s", use_message);
-               commit = lookup_commit_reference(sha1);
-               if (!commit || parse_commit(commit))
-                       die("could not parse commit %s", use_message);
-
-               enc = strstr(commit->buffer, "\nencoding");
-               if (enc) {
-                       end = strchr(enc + 10, '\n');
-                       enc = xstrndup(enc + 10, end - (enc + 10));
-               } else {
-                       enc = utf8;
-               }
-               out_enc = git_commit_encoding ? git_commit_encoding : utf8;
-
-               if (strcmp(out_enc, enc))
-                       use_message_buffer =
-                               reencode_string(commit->buffer, out_enc, enc);
+               out_enc = get_commit_output_encoding();
+               use_message_buffer = logmsg_reencode(commit, out_enc);
 
                /*
                 * If we failed to reencode the buffer, just copy it
@@ -924,8 +958,6 @@ static int parse_and_validate_options(int argc, const char *argv[],
                 */
                if (use_message_buffer == NULL)
                        use_message_buffer = xstrdup(commit->buffer);
-               if (enc != utf8)
-                       free(enc);
        }
 
        if (!!also + !!only + !!all + !!interactive > 1)
@@ -979,6 +1011,8 @@ static int parse_status_slot(const char *var, int offset)
 {
        if (!strcasecmp(var+offset, "header"))
                return WT_STATUS_HEADER;
+       if (!strcasecmp(var+offset, "branch"))
+               return WT_STATUS_ONBRANCH;
        if (!strcasecmp(var+offset, "updated")
                || !strcasecmp(var+offset, "added"))
                return WT_STATUS_UPDATED;
@@ -1043,7 +1077,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
        int fd;
        unsigned char sha1[20];
        static struct option builtin_status_options[] = {
-               OPT__VERBOSE(&verbose),
+               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,
@@ -1059,13 +1093,20 @@ int cmd_status(int argc, const char **argv, const char *prefix)
                  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(),
        };
 
+       if (argc == 2 && !strcmp(argv[1], "-h"))
+               usage_with_options(builtin_status_usage, builtin_status_options);
+
        if (null_termination && status_format == STATUS_FORMAT_LONG)
                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,
@@ -1082,13 +1123,16 @@ 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)
@@ -1107,6 +1151,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
                break;
        case STATUS_FORMAT_LONG:
                s.verbose = verbose;
+               s.ignore_submodule_arg = ignore_submodule_arg;
                wt_status_print(&s);
                break;
        }
@@ -1152,7 +1197,6 @@ 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;
@@ -1243,6 +1287,9 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
        int allow_fast_forward = 1;
        struct wt_status s;
 
+       if (argc == 2 && !strcmp(argv[1], "-h"))
+               usage_with_options(builtin_commit_usage, builtin_commit_options);
+
        wt_status_prepare(&s);
        git_config(git_commit_config, &s);
        in_merge = file_exists(git_path("MERGE_HEAD"));