add technical documentation about ref iteration

[git.git] / builtin / commit.c

diff --git a/builtin/commit.c b/builtin/commit.c
index 67757e999fba514b62767d3351031e9eb6ef8c10..e1af9b19f0be71484ae9341762dc2bf89cabb70c 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -83,7 +83,7 @@ static const char *template_file;
 static const char *author_message, *author_message_buffer;
 static char *edit_message, *use_message;
 static char *fixup_message, *squash_message;
-static int all, edit_flag, also, interactive, only, amend, signoff;
+static int all, edit_flag, also, interactive, patch_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, *ignore_submodule_arg;
@@ -152,6 +152,7 @@ static struct option builtin_commit_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"),
@@ -336,18 +337,11 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, int
        int fd;
        struct string_list partial;
        const char **pathspec = NULL;
+       char *old_index_env = NULL;
        int refresh_flags = REFRESH_QUIET;
 
        if (is_status)
                refresh_flags |= REFRESH_UNMERGED;
-       if (interactive) {
-               if (interactive_add(argc, argv, prefix) != 0)
-                       die(_("interactive add failed"));
-               if (read_cache_preload(NULL) < 0)
-                       die(_("index file corrupt"));
-               commit_style = COMMIT_AS_IS;
-               return get_index_file();
-       }
 
        if (*argv)
                pathspec = get_pathspec(prefix, argv);
@@ -355,6 +349,33 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, int
        if (read_cache_preload(pathspec) < 0)
                die(_("index file corrupt"));
 
+       if (interactive) {
+               fd = hold_locked_index(&index_lock, 1);
+
+               refresh_cache_or_die(refresh_flags);
+
+               if (write_cache(fd, active_cache, active_nr) ||
+                   close_lock_file(&index_lock))
+                       die(_("unable to create temporary index"));
+
+               old_index_env = getenv(INDEX_ENVIRONMENT);
+               setenv(INDEX_ENVIRONMENT, index_lock.filename, 1);
+
+               if (interactive_add(argc, argv, prefix, patch_interactive) != 0)
+                       die(_("interactive add failed"));
+
+               if (old_index_env && *old_index_env)
+                       setenv(INDEX_ENVIRONMENT, old_index_env, 1);
+               else
+                       unsetenv(INDEX_ENVIRONMENT);
+
+               discard_cache();
+               read_cache_from(index_lock.filename);
+
+               commit_style = COMMIT_NORMAL;
+               return index_lock.filename;
+       }
+
        /*
         * Non partial, non as-is commit.
         *
@@ -615,6 +636,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        const char *hook_arg1 = NULL;
        const char *hook_arg2 = NULL;
        int ident_shown = 0;
+       int clean_message_contents = (cleanup_mode != CLEANUP_NONE);
 
        if (!no_verify && run_hook(index_file, "pre-commit", NULL))
                return 0;
@@ -681,6 +703,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
                if (strbuf_read_file(&sb, template_file, 0) < 0)
                        die_errno(_("could not read '%s'"), template_file);
                hook_arg1 = "template";
+               clean_message_contents = 0;
        }
 
        /*
@@ -708,7 +731,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
        if (s->fp == NULL)
                die_errno(_("could not open '%s'"), git_path(commit_editmsg));
 
-       if (cleanup_mode != CLEANUP_NONE)
+       if (clean_message_contents)
                stripspace(&sb, 0);
 
        if (signoff) {
@@ -1041,8 +1064,11 @@ static int parse_and_validate_options(int argc, const char *argv[],
                author_message_buffer = read_commit_message(author_message);
        }
 
+       if (patch_interactive)
+               interactive = 1;
+
        if (!!also + !!only + !!all + !!interactive > 1)
-               die(_("Only one of --include/--only/--all/--interactive can be used."));
+               die(_("Only one of --include/--only/--all/--interactive/--patch can be used."));
        if (argc == 0 && (also || (only && !amend)))
                die(_("No paths with --include/--only does not make sense."));
        if (argc == 0 && only && amend)
@@ -1064,8 +1090,6 @@ static int parse_and_validate_options(int argc, const char *argv[],
 
        if (all && argc > 0)
                die(_("Paths with -a does not make sense."));
-       else if (interactive && argc > 0)
-               die(_("Paths with --interactive does not make sense."));
 
        if (null_termination && status_format == STATUS_FORMAT_LONG)
                status_format = STATUS_FORMAT_PORCELAIN;
@@ -1183,9 +1207,6 @@ int cmd_status(int argc, const char **argv, const char *prefix)
        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);
@@ -1193,6 +1214,10 @@ int cmd_status(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix,
                             builtin_status_options,
                             builtin_status_usage, 0);
+
+       if (null_termination && status_format == STATUS_FORMAT_LONG)
+               status_format = STATUS_FORMAT_PORCELAIN;
+
        handle_untracked_files_arg(&s);
        if (show_ignored_in_status)
                s.show_ignored_files = 1;