[PATCH v3 0/8] shortstatus updates

[PATCH v3 0/8] shortstatus updates

[Junio C Hamano]

Another round of "git status won't be a preview of git commit someday".
This builds on the part that are already in 'pu', and is queued in 'pu'.

Junio C Hamano (8):
  commit: --dry-run
  wt-status: move many global settings to wt_status structure
  wt-status: move wt_status_colors[] into wt_status structure
  Make git_status_config() file scope static to builtin-commit.c
  wt-status: collect untracked files in a separate "collect" phase
  git stat: the beginning
  git stat: pathspec limits, unlike traditional "git status"
  git stat -s: short status output

 Documentation/git-commit.txt |    7 +-
 Makefile                     |    1 +
 builtin-commit.c             |  312 +++++++++++++++++++++++++++++++++++-------
 builtin.h                    |    1 +
 git.c                        |    1 +
 wt-status.c                  |  206 ++++++++++++----------------
 wt-status.h                  |   17 ++-
 7 files changed, 367 insertions(+), 178 deletions(-)

[PATCH v3 1/8] commit: --dry-run

[Junio C Hamano]

This teaches --dry-run option to "git commit".

It is the same as "git status", but in the longer term we would want to
change the semantics of "git status" not to be the preview of commit, and
this is the first step for doing so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 Documentation/git-commit.txt |    7 ++++++-
 builtin-commit.c             |   29 ++++++++++++++++-------------
 2 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index b5d81be..d01ff5a 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -8,7 +8,7 @@ git-commit - Record changes to the repository
 SYNOPSIS
 --------
 [verse]
-'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend]
+'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend] [--dry-run]
 	   [(-c | -C) <commit>] [-F <file> | -m <msg>]
 	   [--allow-empty] [--no-verify] [-e] [--author=<author>]
 	   [--cleanup=<mode>] [--] [[-i | -o ]<file>...]
@@ -198,6 +198,11 @@ specified.
 --quiet::
 	Suppress commit summary message.
 
+--dry-run::
+	Do not create a commit, but show a list of paths that are
+	to be committed, paths with local changes that will be left
+	uncommitted and paths that are untracked.
+
 \--::
 	Do not interpret any more arguments as options.
 
diff --git a/builtin-commit.c b/builtin-commit.c
index 6d12c2e..3a7e35d 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -51,7 +51,7 @@ 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;
+static int quiet, verbose, no_verify, allow_empty, dry_run;
 static char *untracked_files_arg;
 /*
  * The default commit message cleanup mode will remove the lines
@@ -103,6 +103,7 @@ static struct option builtin_commit_options[] = {
 	OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
 	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_BOOLEAN(0, "amend", &amend, "amend previous commit"),
 	{ 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"),
@@ -813,28 +814,28 @@ static int parse_and_validate_options(int argc, const char *argv[],
 	return argc;
 }
 
-int cmd_status(int argc, const char **argv, const char *prefix)
+static int dry_run_commit(int argc, const char **argv, const char *prefix)
 {
-	const char *index_file;
 	int commitable;
+	const char *index_file;
 
-	git_config(git_status_config, NULL);
+	index_file = prepare_index(argc, argv, prefix, 1);
+	commitable = run_status(stdout, index_file, prefix, 0);
+	rollback_index_files();
 
+	return commitable ? 0 : 1;
+}
+
+int cmd_status(int argc, const char **argv, const char *prefix)
+{
+	git_config(git_status_config, NULL);
 	if (wt_status_use_color == -1)
 		wt_status_use_color = git_use_color_default;
-
 	if (diff_use_color_default == -1)
 		diff_use_color_default = git_use_color_default;
 
 	argc = parse_and_validate_options(argc, argv, builtin_status_usage, prefix);
-
-	index_file = prepare_index(argc, argv, prefix, 1);
-
-	commitable = run_status(stdout, index_file, prefix, 0);
-
-	rollback_index_files();
-
-	return commitable ? 0 : 1;
+	return dry_run_commit(argc, argv, prefix);
 }
 
 static void print_summary(const char *prefix, const unsigned char *sha1)
@@ -909,6 +910,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		wt_status_use_color = git_use_color_default;
 
 	argc = parse_and_validate_options(argc, argv, builtin_commit_usage, prefix);
+	if (dry_run)
+		return dry_run_commit(argc, argv, prefix);
 
 	index_file = prepare_index(argc, argv, prefix, 0);
 
-- 
1.6.4.173.g72959

[PATCH v3 2/8] wt-status: move many global settings to wt_status structure

[Junio C Hamano]

Turn four global variables (wt_status_use_color, show_tracked_files,
wt_status_relative_paths, and wt_status_submodule_summary) into fields of
wt_status structure.  Get rid of "untracked" field that was used only to
keep track of otherwise available information redundantly.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin-commit.c |   87 +++++++++++++++++++++++++++++------------------------
 wt-status.c      |   81 +++++++++++++++++++++++++-------------------------
 wt-status.h      |    9 +++--
 3 files changed, 93 insertions(+), 84 deletions(-)

diff --git a/builtin-commit.c b/builtin-commit.c
index 3a7e35d..ca36ba2 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -343,27 +343,24 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, int
 	return false_lock.filename;
 }
 
-static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn)
+static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn,
+		      struct wt_status *s)
 {
-	struct wt_status s;
-
-	wt_status_prepare(&s);
-	if (wt_status_relative_paths)
-		s.prefix = prefix;
+	if (s->wt_status_relative_paths)
+		s->prefix = prefix;
 
 	if (amend) {
-		s.amend = 1;
-		s.reference = "HEAD^1";
+		s->amend = 1;
+		s->reference = "HEAD^1";
 	}
-	s.verbose = verbose;
-	s.untracked = (show_untracked_files == SHOW_ALL_UNTRACKED_FILES);
-	s.index_file = index_file;
-	s.fp = fp;
-	s.nowarn = nowarn;
+	s->verbose = verbose;
+	s->index_file = index_file;
+	s->fp = fp;
+	s->nowarn = nowarn;
 
-	wt_status_print(&s);
+	wt_status_print(s);
 
-	return s.commitable;
+	return s->commitable;
 }
 
 static int is_a_merge(const unsigned char *sha1)
@@ -417,7 +414,8 @@ static void determine_author_info(void)
 	author_date = date;
 }
 
-static int prepare_to_commit(const char *index_file, const char *prefix)
+static int prepare_to_commit(const char *index_file, const char *prefix,
+			     struct wt_status *s)
 {
 	struct stat statbuf;
 	int commitable, saved_color_setting;
@@ -559,10 +557,10 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
 		if (ident_shown)
 			fprintf(fp, "#\n");
 
-		saved_color_setting = wt_status_use_color;
-		wt_status_use_color = 0;
-		commitable = run_status(fp, index_file, prefix, 1);
-		wt_status_use_color = saved_color_setting;
+		saved_color_setting = s->wt_status_use_color;
+		s->wt_status_use_color = 0;
+		commitable = run_status(fp, index_file, prefix, 1, s);
+		s->wt_status_use_color = saved_color_setting;
 	} else {
 		unsigned char sha1[20];
 		const char *parent = "HEAD";
@@ -583,7 +581,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix)
 
 	if (!commitable && !in_merge && !allow_empty &&
 	    !(amend && is_a_merge(head_sha1))) {
-		run_status(stdout, index_file, prefix, 0);
+		run_status(stdout, index_file, prefix, 0, s);
 		return 0;
 	}
 
@@ -695,7 +693,8 @@ static const char *find_author_by_nickname(const char *name)
 
 static int parse_and_validate_options(int argc, const char *argv[],
 				      const char * const usage[],
-				      const char *prefix)
+				      const char *prefix,
+				      struct wt_status *s)
 {
 	int f = 0;
 
@@ -798,11 +797,11 @@ static int parse_and_validate_options(int argc, const char *argv[],
 	if (!untracked_files_arg)
 		; /* default already initialized */
 	else if (!strcmp(untracked_files_arg, "no"))
-		show_untracked_files = SHOW_NO_UNTRACKED_FILES;
+		s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 	else if (!strcmp(untracked_files_arg, "normal"))
-		show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
+		s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 	else if (!strcmp(untracked_files_arg, "all"))
-		show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
+		s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 	else
 		die("Invalid untracked files mode '%s'", untracked_files_arg);
 
@@ -814,13 +813,14 @@ static int parse_and_validate_options(int argc, const char *argv[],
 	return argc;
 }
 
-static int dry_run_commit(int argc, const char **argv, const char *prefix)
+static int dry_run_commit(int argc, const char **argv, const char *prefix,
+			  struct wt_status *s)
 {
 	int commitable;
 	const char *index_file;
 
 	index_file = prepare_index(argc, argv, prefix, 1);
-	commitable = run_status(stdout, index_file, prefix, 0);
+	commitable = run_status(stdout, index_file, prefix, 0, s);
 	rollback_index_files();
 
 	return commitable ? 0 : 1;
@@ -828,14 +828,18 @@ static int dry_run_commit(int argc, const char **argv, const char *prefix)
 
 int cmd_status(int argc, const char **argv, const char *prefix)
 {
-	git_config(git_status_config, NULL);
-	if (wt_status_use_color == -1)
-		wt_status_use_color = git_use_color_default;
+	struct wt_status s;
+
+	wt_status_prepare(&s);
+	git_config(git_status_config, &s);
+	if (s.wt_status_use_color == -1)
+		s.wt_status_use_color = git_use_color_default;
 	if (diff_use_color_default == -1)
 		diff_use_color_default = git_use_color_default;
 
-	argc = parse_and_validate_options(argc, argv, builtin_status_usage, prefix);
-	return dry_run_commit(argc, argv, prefix);
+	argc = parse_and_validate_options(argc, argv, builtin_status_usage,
+					  prefix, &s);
+	return dry_run_commit(argc, argv, prefix, &s);
 }
 
 static void print_summary(const char *prefix, const unsigned char *sha1)
@@ -887,10 +891,12 @@ static void print_summary(const char *prefix, const unsigned char *sha1)
 
 static int git_commit_config(const char *k, const char *v, void *cb)
 {
+	struct wt_status *s = cb;
+
 	if (!strcmp(k, "commit.template"))
 		return git_config_string(&template_file, k, v);
 
-	return git_status_config(k, v, cb);
+	return git_status_config(k, v, s);
 }
 
 int cmd_commit(int argc, const char **argv, const char *prefix)
@@ -903,21 +909,24 @@ 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;
 
-	git_config(git_commit_config, NULL);
+	wt_status_prepare(&s);
+	git_config(git_commit_config, &s);
 
-	if (wt_status_use_color == -1)
-		wt_status_use_color = git_use_color_default;
+	if (s.wt_status_use_color == -1)
+		s.wt_status_use_color = git_use_color_default;
 
-	argc = parse_and_validate_options(argc, argv, builtin_commit_usage, prefix);
+	argc = parse_and_validate_options(argc, argv, builtin_commit_usage,
+					  prefix, &s);
 	if (dry_run)
-		return dry_run_commit(argc, argv, prefix);
+		return dry_run_commit(argc, argv, prefix, &s);
 
 	index_file = prepare_index(argc, argv, prefix, 0);
 
 	/* 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)) {
+	if (!prepare_to_commit(index_file, prefix, &s)) {
 		rollback_index_files();
 		return 1;
 	}
diff --git a/wt-status.c b/wt-status.c
index 97fedfa..c84a18a 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -11,9 +11,6 @@
 #include "run-command.h"
 #include "remote.h"
 
-int wt_status_relative_paths = 1;
-int wt_status_use_color = -1;
-static int wt_status_submodule_summary;
 static char wt_status_colors[][COLOR_MAXLEN] = {
 	GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
 	GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
@@ -23,8 +20,6 @@ static char wt_status_colors[][COLOR_MAXLEN] = {
 	GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
 };
 
-enum untracked_status_type show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
-
 static int parse_status_slot(const char *var, int offset)
 {
 	if (!strcasecmp(var+offset, "header"))
@@ -43,9 +38,9 @@ static int parse_status_slot(const char *var, int offset)
 	die("bad config variable '%s'", var);
 }
 
-static const char *color(int slot)
+static const char *color(int slot, struct wt_status *s)
 {
-	return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
+	return s->wt_status_use_color > 0 ? wt_status_colors[slot] : "";
 }
 
 void wt_status_prepare(struct wt_status *s)
@@ -54,6 +49,9 @@ void wt_status_prepare(struct wt_status *s)
 	const char *head;
 
 	memset(s, 0, sizeof(*s));
+	s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
+	s->wt_status_use_color = -1;
+	s->wt_status_relative_paths = 1;
 	head = resolve_ref("HEAD", sha1, 0, NULL);
 	s->branch = head ? xstrdup(head) : NULL;
 	s->reference = "HEAD";
@@ -64,7 +62,7 @@ void wt_status_prepare(struct wt_status *s)
 
 static void wt_status_print_unmerged_header(struct wt_status *s)
 {
-	const char *c = color(WT_STATUS_HEADER);
+	const char *c = color(WT_STATUS_HEADER, s);
 	color_fprintf_ln(s->fp, c, "# Unmerged paths:");
 	if (!s->is_initial)
 		color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
@@ -76,7 +74,7 @@ static void wt_status_print_unmerged_header(struct wt_status *s)
 
 static void wt_status_print_cached_header(struct wt_status *s)
 {
-	const char *c = color(WT_STATUS_HEADER);
+	const char *c = color(WT_STATUS_HEADER, s);
 	color_fprintf_ln(s->fp, c, "# Changes to be committed:");
 	if (!s->is_initial) {
 		color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
@@ -89,7 +87,7 @@ static void wt_status_print_cached_header(struct wt_status *s)
 static void wt_status_print_dirty_header(struct wt_status *s,
 					 int has_deleted)
 {
-	const char *c = color(WT_STATUS_HEADER);
+	const char *c = color(WT_STATUS_HEADER, s);
 	color_fprintf_ln(s->fp, c, "# Changed but not updated:");
 	if (!has_deleted)
 		color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
@@ -101,7 +99,7 @@ static void wt_status_print_dirty_header(struct wt_status *s,
 
 static void wt_status_print_untracked_header(struct wt_status *s)
 {
-	const char *c = color(WT_STATUS_HEADER);
+	const char *c = color(WT_STATUS_HEADER, s);
 	color_fprintf_ln(s->fp, c, "# Untracked files:");
 	color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to include in what will be committed)");
 	color_fprintf_ln(s->fp, c, "#");
@@ -109,7 +107,7 @@ static void wt_status_print_untracked_header(struct wt_status *s)
 
 static void wt_status_print_trailer(struct wt_status *s)
 {
-	color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
+	color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 }
 
 #define quote_path quote_path_relative
@@ -117,13 +115,13 @@ static void wt_status_print_trailer(struct wt_status *s)
 static void wt_status_print_unmerged_data(struct wt_status *s,
 					  struct string_list_item *it)
 {
-	const char *c = color(WT_STATUS_UNMERGED);
+	const char *c = color(WT_STATUS_UNMERGED, s);
 	struct wt_status_change_data *d = it->util;
 	struct strbuf onebuf = STRBUF_INIT;
 	const char *one, *how = "bug";
 
 	one = quote_path(it->string, -1, &onebuf, s->prefix);
-	color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
+	color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 	switch (d->stagemask) {
 	case 1: how = "both deleted:"; break;
 	case 2: how = "added by us:"; break;
@@ -142,7 +140,7 @@ static void wt_status_print_change_data(struct wt_status *s,
 					struct string_list_item *it)
 {
 	struct wt_status_change_data *d = it->util;
-	const char *c = color(change_type);
+	const char *c = color(change_type, s);
 	int status = status;
 	char *one_name;
 	char *two_name;
@@ -164,7 +162,7 @@ static void wt_status_print_change_data(struct wt_status *s,
 	one = quote_path(one_name, -1, &onebuf, s->prefix);
 	two = quote_path(two_name, -1, &twobuf, s->prefix);
 
-	color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
+	color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 	switch (status) {
 	case DIFF_STATUS_ADDED:
 		color_fprintf(s->fp, c, "new file:   %s", one);
@@ -450,7 +448,7 @@ static void wt_status_print_submodule_summary(struct wt_status *s)
 		NULL
 	};
 
-	sprintf(summary_limit, "%d", wt_status_submodule_summary);
+	sprintf(summary_limit, "%d", s->wt_status_submodule_summary);
 	snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 
 	memset(&sm_summary, 0, sizeof(sm_summary));
@@ -471,8 +469,7 @@ static void wt_status_print_untracked(struct wt_status *s)
 	struct strbuf buf = STRBUF_INIT;
 
 	memset(&dir, 0, sizeof(dir));
-
-	if (!s->untracked)
+	if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 		dir.flags |=
 			DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 	setup_standard_excludes(&dir);
@@ -487,8 +484,8 @@ static void wt_status_print_untracked(struct wt_status *s)
 			wt_status_print_untracked_header(s);
 			shown_header = 1;
 		}
-		color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
-		color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
+		color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
+		color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 				quote_path(ent->name, ent->len,
 					&buf, s->prefix));
 	}
@@ -532,15 +529,15 @@ static void wt_status_print_tracking(struct wt_status *s)
 		return;
 
 	for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
-		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
+		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 				 "# %.*s", (int)(ep - cp), cp);
-	color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
+	color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 }
 
 void wt_status_print(struct wt_status *s)
 {
 	unsigned char sha1[20];
-	const char *branch_color = color(WT_STATUS_HEADER);
+	const char *branch_color = color(WT_STATUS_HEADER, s);
 
 	s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 	if (s->branch) {
@@ -550,10 +547,10 @@ void wt_status_print(struct wt_status *s)
 			branch_name += 11;
 		else if (!strcmp(branch_name, "HEAD")) {
 			branch_name = "";
-			branch_color = color(WT_STATUS_NOBRANCH);
+			branch_color = color(WT_STATUS_NOBRANCH, s);
 			on_what = "Not currently on any branch.";
 		}
-		color_fprintf(s->fp, color(WT_STATUS_HEADER), "# ");
+		color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 		color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 		if (!s->is_initial)
 			wt_status_print_tracking(s);
@@ -562,17 +559,17 @@ void wt_status_print(struct wt_status *s)
 	wt_status_collect_changes(s);
 
 	if (s->is_initial) {
-		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
-		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
-		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
+		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
+		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
+		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 	}
 
 	wt_status_print_unmerged(s);
 	wt_status_print_updated(s);
 	wt_status_print_changed(s);
-	if (wt_status_submodule_summary)
+	if (s->wt_status_submodule_summary)
 		wt_status_print_submodule_summary(s);
-	if (show_untracked_files)
+	if (s->show_untracked_files)
 		wt_status_print_untracked(s);
 	else if (s->commitable)
 		 fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
@@ -590,7 +587,7 @@ void wt_status_print(struct wt_status *s)
 			printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 		else if (s->is_initial)
 			printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
-		else if (!show_untracked_files)
+		else if (!s->show_untracked_files)
 			printf("nothing to commit (use -u to show untracked files)\n");
 		else
 			printf("nothing to commit (working directory clean)\n");
@@ -599,15 +596,17 @@ void wt_status_print(struct wt_status *s)
 
 int git_status_config(const char *k, const char *v, void *cb)
 {
+	struct wt_status *s = cb;
+
 	if (!strcmp(k, "status.submodulesummary")) {
 		int is_bool;
-		wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
-		if (is_bool && wt_status_submodule_summary)
-			wt_status_submodule_summary = -1;
+		s->wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
+		if (is_bool && s->wt_status_submodule_summary)
+			s->wt_status_submodule_summary = -1;
 		return 0;
 	}
 	if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
-		wt_status_use_color = git_config_colorbool(k, v, -1);
+		s->wt_status_use_color = git_config_colorbool(k, v, -1);
 		return 0;
 	}
 	if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
@@ -618,21 +617,21 @@ int git_status_config(const char *k, const char *v, void *cb)
 		return 0;
 	}
 	if (!strcmp(k, "status.relativepaths")) {
-		wt_status_relative_paths = git_config_bool(k, v);
+		s->wt_status_relative_paths = git_config_bool(k, v);
 		return 0;
 	}
 	if (!strcmp(k, "status.showuntrackedfiles")) {
 		if (!v)
 			return config_error_nonbool(k);
 		else if (!strcmp(v, "no"))
-			show_untracked_files = SHOW_NO_UNTRACKED_FILES;
+			s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 		else if (!strcmp(v, "normal"))
-			show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
+			s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 		else if (!strcmp(v, "all"))
-			show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
+			s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 		else
 			return error("Invalid untracked files mode '%s'", v);
 		return 0;
 	}
-	return git_diff_ui_config(k, v, cb);
+	return git_diff_ui_config(k, v, NULL);
 }
diff --git a/wt-status.h b/wt-status.h
index f80142f..3d7fe30 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -18,7 +18,6 @@ enum untracked_status_type {
 	SHOW_NORMAL_UNTRACKED_FILES,
 	SHOW_ALL_UNTRACKED_FILES
 };
-extern enum untracked_status_type show_untracked_files;
 
 struct wt_status_change_data {
 	int worktree_status;
@@ -33,8 +32,12 @@ struct wt_status {
 	const char *reference;
 	int verbose;
 	int amend;
-	int untracked;
 	int nowarn;
+	int wt_status_use_color;
+	int wt_status_relative_paths;
+	int wt_status_submodule_summary;
+	enum untracked_status_type show_untracked_files;
+
 	/* These are computed during processing of the individual sections */
 	int commitable;
 	int workdir_dirty;
@@ -46,8 +49,6 @@ struct wt_status {
 };
 
 int git_status_config(const char *var, const char *value, void *cb);
-extern int wt_status_use_color;
-extern int wt_status_relative_paths;
 void wt_status_prepare(struct wt_status *s);
 void wt_status_print(struct wt_status *s);
 void wt_status_collect_changes(struct wt_status *s);
-- 
1.6.4.173.g72959

[PATCH v3 3/8] wt-status: move wt_status_colors[] into wt_status structure

[Junio C Hamano]

The benefit of this one alone is somewhat iffy, but for completeness this
moves the wt_status_colors[] color palette to the wt_status structure to
complete what the previous commit started.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 wt-status.c |    9 +++++----
 wt-status.h |    2 ++
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/wt-status.c b/wt-status.c
index c84a18a..a2a7257 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -1,6 +1,5 @@
 #include "cache.h"
 #include "wt-status.h"
-#include "color.h"
 #include "object.h"
 #include "dir.h"
 #include "commit.h"
@@ -11,7 +10,7 @@
 #include "run-command.h"
 #include "remote.h"
 
-static char wt_status_colors[][COLOR_MAXLEN] = {
+static char default_wt_status_colors[][COLOR_MAXLEN] = {
 	GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
 	GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
 	GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
@@ -40,7 +39,7 @@ static int parse_status_slot(const char *var, int offset)
 
 static const char *color(int slot, struct wt_status *s)
 {
-	return s->wt_status_use_color > 0 ? wt_status_colors[slot] : "";
+	return s->wt_status_use_color > 0 ? s->wt_status_colors[slot] : "";
 }
 
 void wt_status_prepare(struct wt_status *s)
@@ -49,6 +48,8 @@ void wt_status_prepare(struct wt_status *s)
 	const char *head;
 
 	memset(s, 0, sizeof(*s));
+	memcpy(s->wt_status_colors, default_wt_status_colors,
+	       sizeof(default_wt_status_colors));
 	s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 	s->wt_status_use_color = -1;
 	s->wt_status_relative_paths = 1;
@@ -613,7 +614,7 @@ int git_status_config(const char *k, const char *v, void *cb)
 		int slot = parse_status_slot(k, 13);
 		if (!v)
 			return config_error_nonbool(k);
-		color_parse(v, k, wt_status_colors[slot]);
+		color_parse(v, k, s->wt_status_colors[slot]);
 		return 0;
 	}
 	if (!strcmp(k, "status.relativepaths")) {
diff --git a/wt-status.h b/wt-status.h
index 3d7fe30..f22c3c1 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -3,6 +3,7 @@
 
 #include <stdio.h>
 #include "string-list.h"
+#include "color.h"
 
 enum color_wt_status {
 	WT_STATUS_HEADER,
@@ -37,6 +38,7 @@ struct wt_status {
 	int wt_status_relative_paths;
 	int wt_status_submodule_summary;
 	enum untracked_status_type show_untracked_files;
+	char wt_status_colors[6][COLOR_MAXLEN];
 
 	/* These are computed during processing of the individual sections */
 	int commitable;
-- 
1.6.4.173.g72959

[PATCH v3 4/8] Make git_status_config() file scope static to builtin-commit.c

[Junio C Hamano]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin-commit.c |   60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 wt-status.c      |   60 ------------------------------------------------------
 wt-status.h      |    1 -
 3 files changed, 60 insertions(+), 61 deletions(-)

diff --git a/builtin-commit.c b/builtin-commit.c
index ca36ba2..601118f 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -826,6 +826,66 @@ static int dry_run_commit(int argc, const char **argv, const char *prefix,
 	return commitable ? 0 : 1;
 }
 
+static int parse_status_slot(const char *var, int offset)
+{
+	if (!strcasecmp(var+offset, "header"))
+		return WT_STATUS_HEADER;
+	if (!strcasecmp(var+offset, "updated")
+		|| !strcasecmp(var+offset, "added"))
+		return WT_STATUS_UPDATED;
+	if (!strcasecmp(var+offset, "changed"))
+		return WT_STATUS_CHANGED;
+	if (!strcasecmp(var+offset, "untracked"))
+		return WT_STATUS_UNTRACKED;
+	if (!strcasecmp(var+offset, "nobranch"))
+		return WT_STATUS_NOBRANCH;
+	if (!strcasecmp(var+offset, "unmerged"))
+		return WT_STATUS_UNMERGED;
+	die("bad config variable '%s'", var);
+}
+
+static int git_status_config(const char *k, const char *v, void *cb)
+{
+	struct wt_status *s = cb;
+
+	if (!strcmp(k, "status.submodulesummary")) {
+		int is_bool;
+		s->wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
+		if (is_bool && s->wt_status_submodule_summary)
+			s->wt_status_submodule_summary = -1;
+		return 0;
+	}
+	if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
+		s->wt_status_use_color = git_config_colorbool(k, v, -1);
+		return 0;
+	}
+	if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
+		int slot = parse_status_slot(k, 13);
+		if (!v)
+			return config_error_nonbool(k);
+		color_parse(v, k, s->wt_status_colors[slot]);
+		return 0;
+	}
+	if (!strcmp(k, "status.relativepaths")) {
+		s->wt_status_relative_paths = git_config_bool(k, v);
+		return 0;
+	}
+	if (!strcmp(k, "status.showuntrackedfiles")) {
+		if (!v)
+			return config_error_nonbool(k);
+		else if (!strcmp(v, "no"))
+			s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
+		else if (!strcmp(v, "normal"))
+			s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
+		else if (!strcmp(v, "all"))
+			s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
+		else
+			return error("Invalid untracked files mode '%s'", v);
+		return 0;
+	}
+	return git_diff_ui_config(k, v, NULL);
+}
+
 int cmd_status(int argc, const char **argv, const char *prefix)
 {
 	struct wt_status s;
diff --git a/wt-status.c b/wt-status.c
index a2a7257..68e4d9b 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -19,24 +19,6 @@ static char default_wt_status_colors[][COLOR_MAXLEN] = {
 	GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
 };
 
-static int parse_status_slot(const char *var, int offset)
-{
-	if (!strcasecmp(var+offset, "header"))
-		return WT_STATUS_HEADER;
-	if (!strcasecmp(var+offset, "updated")
-		|| !strcasecmp(var+offset, "added"))
-		return WT_STATUS_UPDATED;
-	if (!strcasecmp(var+offset, "changed"))
-		return WT_STATUS_CHANGED;
-	if (!strcasecmp(var+offset, "untracked"))
-		return WT_STATUS_UNTRACKED;
-	if (!strcasecmp(var+offset, "nobranch"))
-		return WT_STATUS_NOBRANCH;
-	if (!strcasecmp(var+offset, "unmerged"))
-		return WT_STATUS_UNMERGED;
-	die("bad config variable '%s'", var);
-}
-
 static const char *color(int slot, struct wt_status *s)
 {
 	return s->wt_status_use_color > 0 ? s->wt_status_colors[slot] : "";
@@ -594,45 +576,3 @@ void wt_status_print(struct wt_status *s)
 			printf("nothing to commit (working directory clean)\n");
 	}
 }
-
-int git_status_config(const char *k, const char *v, void *cb)
-{
-	struct wt_status *s = cb;
-
-	if (!strcmp(k, "status.submodulesummary")) {
-		int is_bool;
-		s->wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
-		if (is_bool && s->wt_status_submodule_summary)
-			s->wt_status_submodule_summary = -1;
-		return 0;
-	}
-	if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
-		s->wt_status_use_color = git_config_colorbool(k, v, -1);
-		return 0;
-	}
-	if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
-		int slot = parse_status_slot(k, 13);
-		if (!v)
-			return config_error_nonbool(k);
-		color_parse(v, k, s->wt_status_colors[slot]);
-		return 0;
-	}
-	if (!strcmp(k, "status.relativepaths")) {
-		s->wt_status_relative_paths = git_config_bool(k, v);
-		return 0;
-	}
-	if (!strcmp(k, "status.showuntrackedfiles")) {
-		if (!v)
-			return config_error_nonbool(k);
-		else if (!strcmp(v, "no"))
-			s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
-		else if (!strcmp(v, "normal"))
-			s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
-		else if (!strcmp(v, "all"))
-			s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
-		else
-			return error("Invalid untracked files mode '%s'", v);
-		return 0;
-	}
-	return git_diff_ui_config(k, v, NULL);
-}
diff --git a/wt-status.h b/wt-status.h
index f22c3c1..12dc95e 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -50,7 +50,6 @@ struct wt_status {
 	struct string_list change;
 };
 
-int git_status_config(const char *var, const char *value, void *cb);
 void wt_status_prepare(struct wt_status *s);
 void wt_status_print(struct wt_status *s);
 void wt_status_collect_changes(struct wt_status *s);
-- 
1.6.4.173.g72959

[PATCH v3 5/8] wt-status: collect untracked files in a separate "collect" phase

[Junio C Hamano]

In a way similar to updated and locally modified files are collected.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 wt-status.c |   58 ++++++++++++++++++++++++++++++++++++----------------------
 wt-status.h |    3 ++-
 2 files changed, 38 insertions(+), 23 deletions(-)

diff --git a/wt-status.c b/wt-status.c
index 68e4d9b..b6ae12c 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -41,6 +41,7 @@ void wt_status_prepare(struct wt_status *s)
 	s->fp = stdout;
 	s->index_file = get_index_file();
 	s->change.strdup_strings = 1;
+	s->untracked.strdup_strings = 1;
 }
 
 static void wt_status_print_unmerged_header(struct wt_status *s)
@@ -311,7 +312,30 @@ static void wt_status_collect_changes_initial(struct wt_status *s)
 	}
 }
 
-void wt_status_collect_changes(struct wt_status *s)
+static void wt_status_collect_untracked(struct wt_status *s)
+{
+	int i;
+	struct dir_struct dir;
+
+	if (!s->show_untracked_files)
+		return;
+	memset(&dir, 0, sizeof(dir));
+	if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
+		dir.flags |=
+			DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
+	setup_standard_excludes(&dir);
+
+	fill_directory(&dir, NULL);
+	for(i = 0; i < dir.nr; i++) {
+		struct dir_entry *ent = dir.entries[i];
+		if (!cache_name_is_other(ent->name, ent->len))
+			continue;
+		s->workdir_untracked = 1;
+		string_list_insert(ent->name, &s->untracked);
+	}
+}
+
+void wt_status_collect(struct wt_status *s)
 {
 	wt_status_collect_changes_worktree(s);
 
@@ -319,6 +343,7 @@ void wt_status_collect_changes(struct wt_status *s)
 		wt_status_collect_changes_initial(s);
 	else
 		wt_status_collect_changes_index(s);
+	wt_status_collect_untracked(s);
 }
 
 static void wt_status_print_unmerged(struct wt_status *s)
@@ -446,31 +471,20 @@ static void wt_status_print_submodule_summary(struct wt_status *s)
 
 static void wt_status_print_untracked(struct wt_status *s)
 {
-	struct dir_struct dir;
 	int i;
-	int shown_header = 0;
 	struct strbuf buf = STRBUF_INIT;
 
-	memset(&dir, 0, sizeof(dir));
-	if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
-		dir.flags |=
-			DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
-	setup_standard_excludes(&dir);
+	if (!s->untracked.nr)
+		return;
 
-	fill_directory(&dir, NULL);
-	for(i = 0; i < dir.nr; i++) {
-		struct dir_entry *ent = dir.entries[i];
-		if (!cache_name_is_other(ent->name, ent->len))
-			continue;
-		if (!shown_header) {
-			s->workdir_untracked = 1;
-			wt_status_print_untracked_header(s);
-			shown_header = 1;
-		}
+	wt_status_print_untracked_header(s);
+	for (i = 0; i < s->untracked.nr; i++) {
+		struct string_list_item *it;
+		it = &(s->untracked.items[i]);
 		color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 		color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
-				quote_path(ent->name, ent->len,
-					&buf, s->prefix));
+				 quote_path(it->string, strlen(it->string),
+					    &buf, s->prefix));
 	}
 	strbuf_release(&buf);
 }
@@ -539,7 +553,7 @@ void wt_status_print(struct wt_status *s)
 			wt_status_print_tracking(s);
 	}
 
-	wt_status_collect_changes(s);
+	wt_status_collect(s);
 
 	if (s->is_initial) {
 		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
@@ -566,7 +580,7 @@ void wt_status_print(struct wt_status *s)
 			; /* nothing */
 		else if (s->workdir_dirty)
 			printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
-		else if (s->workdir_untracked)
+		else if (s->untracked.nr)
 			printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 		else if (s->is_initial)
 			printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
diff --git a/wt-status.h b/wt-status.h
index 12dc95e..33240b3 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -48,10 +48,11 @@ struct wt_status {
 	FILE *fp;
 	const char *prefix;
 	struct string_list change;
+	struct string_list untracked;
 };
 
 void wt_status_prepare(struct wt_status *s);
 void wt_status_print(struct wt_status *s);
-void wt_status_collect_changes(struct wt_status *s);
+void wt_status_collect(struct wt_status *s);
 
 #endif /* STATUS_H */
-- 
1.6.4.173.g72959

[PATCH v3 6/8] git stat: the beginning

[Junio C Hamano]

Tentatively add "git stat" as a new command.  This does not munge the
index with paths parameters before showing the status like "git status"
does.  In later rounds, we will take path parameters as pathspec to limit
the output.
---
 Makefile         |    1 +
 builtin-commit.c |   60 +++++++++++++++++++++++++++++++++++++++++++++---------
 builtin.h        |    1 +
 git.c            |    1 +
 wt-status.c      |   24 +++++++++++++--------
 wt-status.h      |    1 +
 6 files changed, 69 insertions(+), 19 deletions(-)

diff --git a/Makefile b/Makefile
index daf4296..39dd334 100644
--- a/Makefile
+++ b/Makefile
@@ -378,6 +378,7 @@ BUILT_INS += git-init$X
 BUILT_INS += git-merge-subtree$X
 BUILT_INS += git-peek-remote$X
 BUILT_INS += git-repo-config$X
+BUILT_INS += git-stat$X
 BUILT_INS += git-show$X
 BUILT_INS += git-stage$X
 BUILT_INS += git-status$X
diff --git a/builtin-commit.c b/builtin-commit.c
index 601118f..bc780a8 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -24,6 +24,7 @@
 #include "string-list.h"
 #include "rerere.h"
 #include "unpack-trees.h"
+#include "quote.h"
 
 static const char * const builtin_commit_usage[] = {
 	"git commit [options] [--] <filepattern>...",
@@ -35,6 +36,11 @@ static const char * const builtin_status_usage[] = {
 	NULL
 };
 
+static const char * const builtin_stat_usage[] = {
+	"git stat [options]",
+	NULL
+};
+
 static unsigned char head_sha1[20], merge_head_sha1[20];
 static char *use_message_buffer;
 static const char commit_editmsg[] = "COMMIT_EDITMSG";
@@ -691,6 +697,21 @@ static const char *find_author_by_nickname(const char *name)
 	die("No existing author found with '%s'", name);
 }
 
+
+static void handle_untracked_files_arg(struct wt_status *s)
+{
+	if (!untracked_files_arg)
+		; /* default already initialized */
+	else if (!strcmp(untracked_files_arg, "no"))
+		s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
+	else if (!strcmp(untracked_files_arg, "normal"))
+		s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
+	else if (!strcmp(untracked_files_arg, "all"))
+		s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
+	else
+		die("Invalid untracked files mode '%s'", untracked_files_arg);
+}
+
 static int parse_and_validate_options(int argc, const char *argv[],
 				      const char * const usage[],
 				      const char *prefix,
@@ -794,16 +815,7 @@ static int parse_and_validate_options(int argc, const char *argv[],
 	else
 		die("Invalid cleanup mode %s", cleanup_arg);
 
-	if (!untracked_files_arg)
-		; /* default already initialized */
-	else if (!strcmp(untracked_files_arg, "no"))
-		s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
-	else if (!strcmp(untracked_files_arg, "normal"))
-		s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
-	else if (!strcmp(untracked_files_arg, "all"))
-		s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
-	else
-		die("Invalid untracked files mode '%s'", untracked_files_arg);
+	handle_untracked_files_arg(s);
 
 	if (all && argc > 0)
 		die("Paths with -a does not make sense.");
@@ -886,6 +898,34 @@ static int git_status_config(const char *k, const char *v, void *cb)
 	return git_diff_ui_config(k, v, NULL);
 }
 
+int cmd_stat(int argc, const char **argv, const char *prefix)
+{
+	struct wt_status s;
+	unsigned char sha1[20];
+	static struct option builtin_stat_options[] = {
+		{ 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_END(),
+	};
+
+	wt_status_prepare(&s);
+	git_config(git_status_config, &s);
+	argc = parse_options(argc, argv, prefix,
+			     builtin_stat_options,
+			     builtin_stat_usage, 0);
+	handle_untracked_files_arg(&s);
+
+	read_cache();
+	refresh_cache(REFRESH_QUIET|REFRESH_UNMERGED);
+	s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
+	wt_status_collect(&s);
+
+	wt_status_print_body(&s);
+	return 0;
+}
+
 int cmd_status(int argc, const char **argv, const char *prefix)
 {
 	struct wt_status s;
diff --git a/builtin.h b/builtin.h
index 20427d2..eeaf0b6 100644
--- a/builtin.h
+++ b/builtin.h
@@ -95,6 +95,7 @@ extern int cmd_send_pack(int argc, const char **argv, const char *prefix);
 extern int cmd_shortlog(int argc, const char **argv, const char *prefix);
 extern int cmd_show(int argc, const char **argv, const char *prefix);
 extern int cmd_show_branch(int argc, const char **argv, const char *prefix);
+extern int cmd_stat(int argc, const char **argv, const char *prefix);
 extern int cmd_status(int argc, const char **argv, const char *prefix);
 extern int cmd_stripspace(int argc, const char **argv, const char *prefix);
 extern int cmd_symbolic_ref(int argc, const char **argv, const char *prefix);
diff --git a/git.c b/git.c
index 807d875..de7fcf6 100644
--- a/git.c
+++ b/git.c
@@ -350,6 +350,7 @@ static void handle_internal_command(int argc, const char **argv)
 		{ "shortlog", cmd_shortlog, USE_PAGER },
 		{ "show-branch", cmd_show_branch, RUN_SETUP },
 		{ "show", cmd_show, RUN_SETUP | USE_PAGER },
+		{ "stat", cmd_stat, RUN_SETUP | NEED_WORK_TREE },
 		{ "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
 		{ "stripspace", cmd_stripspace },
 		{ "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
diff --git a/wt-status.c b/wt-status.c
index b6ae12c..a5dbdcc 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -531,6 +531,20 @@ static void wt_status_print_tracking(struct wt_status *s)
 	color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 }
 
+void wt_status_print_body(struct wt_status *s)
+{
+	wt_status_print_unmerged(s);
+	wt_status_print_updated(s);
+	wt_status_print_changed(s);
+	if (s->wt_status_submodule_summary)
+		wt_status_print_submodule_summary(s);
+	if (s->show_untracked_files)
+		wt_status_print_untracked(s);
+	else if (s->commitable)
+		fprintf(s->fp,
+			"# Untracked files not listed (use -u option to show untracked files)\n");
+}
+
 void wt_status_print(struct wt_status *s)
 {
 	unsigned char sha1[20];
@@ -561,15 +575,7 @@ void wt_status_print(struct wt_status *s)
 		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 	}
 
-	wt_status_print_unmerged(s);
-	wt_status_print_updated(s);
-	wt_status_print_changed(s);
-	if (s->wt_status_submodule_summary)
-		wt_status_print_submodule_summary(s);
-	if (s->show_untracked_files)
-		wt_status_print_untracked(s);
-	else if (s->commitable)
-		 fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
+	wt_status_print_body(s);
 
 	if (s->verbose)
 		wt_status_print_verbose(s);
diff --git a/wt-status.h b/wt-status.h
index 33240b3..44c40ff 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -54,5 +54,6 @@ struct wt_status {
 void wt_status_prepare(struct wt_status *s);
 void wt_status_print(struct wt_status *s);
 void wt_status_collect(struct wt_status *s);
+void wt_status_print_body(struct wt_status *s);
 
 #endif /* STATUS_H */
-- 
1.6.4.173.g72959

[PATCH v3 7/8] git stat: pathspec limits, unlike traditional "git status"

[Junio C Hamano]

The "git stat" command is not "preview of commit with the same arguments";
the path parameters are not paths to be added to the pristine index (aka
"--only" option), but are taken as pathspecs to limit the output.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin-commit.c |    3 +++
 wt-status.c      |    6 ++++++
 wt-status.h      |    1 +
 3 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/builtin-commit.c b/builtin-commit.c
index bc780a8..9c2a70c 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -917,6 +917,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix)
 			     builtin_stat_usage, 0);
 	handle_untracked_files_arg(&s);
 
+	if (*argv)
+		s.pathspec = get_pathspec(prefix, argv);
+
 	read_cache();
 	refresh_cache(REFRESH_QUIET|REFRESH_UNMERGED);
 	s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
diff --git a/wt-status.c b/wt-status.c
index a5dbdcc..aea3bbb 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -269,6 +269,7 @@ static void wt_status_collect_changes_worktree(struct wt_status *s)
 	rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 	rev.diffopt.format_callback = wt_status_collect_changed_cb;
 	rev.diffopt.format_callback_data = s;
+	rev.prune_data = s->pathspec;
 	run_diff_files(&rev, 0);
 }
 
@@ -285,6 +286,7 @@ static void wt_status_collect_changes_index(struct wt_status *s)
 	rev.diffopt.detect_rename = 1;
 	rev.diffopt.rename_limit = 200;
 	rev.diffopt.break_opt = 0;
+	rev.prune_data = s->pathspec;
 	run_diff_index(&rev, 1);
 }
 
@@ -297,6 +299,8 @@ static void wt_status_collect_changes_initial(struct wt_status *s)
 		struct wt_status_change_data *d;
 		struct cache_entry *ce = active_cache[i];
 
+		if (!ce_path_match(ce, s->pathspec))
+			continue;
 		it = string_list_insert(ce->name, &s->change);
 		d = it->util;
 		if (!d) {
@@ -330,6 +334,8 @@ static void wt_status_collect_untracked(struct wt_status *s)
 		struct dir_entry *ent = dir.entries[i];
 		if (!cache_name_is_other(ent->name, ent->len))
 			continue;
+		if (!match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
+			continue;
 		s->workdir_untracked = 1;
 		string_list_insert(ent->name, &s->untracked);
 	}
diff --git a/wt-status.h b/wt-status.h
index 44c40ff..6dcb739 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -31,6 +31,7 @@ struct wt_status {
 	int is_initial;
 	char *branch;
 	const char *reference;
+	const char **pathspec;
 	int verbose;
 	int amend;
 	int nowarn;
-- 
1.6.4.173.g72959

[PATCH v3 8/8] git stat -s: short status output

[Junio C Hamano]

Give -s(hort) option to "git stat" that shows the status of paths in a
more concise way.

    XY PATH1 -> PATH2

format to be more machine readable than output from "git status", which is
about previewing of "git commit" with the same arguments.

PATH1 is the path in the HEAD, and " -> PATH2" part is shown only when
PATH1 corresponds to a different path in the index/worktree.

For unmerged entries, X shows the status of stage #2 (i.e. ours) and Y
shows the status of stage #3 (i.e. theirs).  For entries that do not have
conflicts, X shows the status of the index, and Y shows the status of the
work tree.  For untracked paths, XY are "??".

    X          Y     Meaning
    -------------------------------------------------
              [MD]   not updated
    M        [ MD]   updated in index
    A        [ MD]   added to index
    D        [ MD]   deleted from index
    R        [ MD]   renamed in index
    C        [ MD]   copied in index
    [MARC]           index and work tree matches
    [ MARC]     M    work tree changed since index
    [ MARC]     D    deleted in work tree

    D           D    unmerged, both deleted
    A           U    unmerged, added by us
    U           D    unmerged, deleted by them
    U           A    unmerged, added by them
    D           U    unmerged, deleted by us
    A           A    unmerged, both added
    U           U    unmerged, both modified

    ?           ?    untracked

When given -z option, the records are terminated by NUL characters for
better machine readability.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin-commit.c |   97 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 96 insertions(+), 1 deletions(-)

diff --git a/builtin-commit.c b/builtin-commit.c
index 9c2a70c..0ed0d71 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -898,11 +898,86 @@ static int git_status_config(const char *k, const char *v, void *cb)
 	return git_diff_ui_config(k, v, NULL);
 }
 
+#define quote_path quote_path_relative
+
+static void short_unmerged(int null_termination, struct string_list_item *it,
+			   struct wt_status *s)
+{
+	struct wt_status_change_data *d = it->util;
+	const char *how = "??";
+
+	switch (d->stagemask) {
+	case 1: how = "DD"; break; /* both deleted */
+	case 2: how = "AU"; break; /* added by us */
+	case 3: how = "UD"; break; /* deleted by them */
+	case 4: how = "UA"; break; /* added by them */
+	case 5: how = "DU"; break; /* deleted by us */
+	case 6: how = "AA"; break; /* both added */
+	case 7: how = "UU"; break; /* both modified */
+	}
+	printf("%s ", how);
+	if (null_termination) {
+		fprintf(stdout, "%s%c", it->string, 0);
+	} else {
+		struct strbuf onebuf = STRBUF_INIT;
+		const char *one;
+		one = quote_path(it->string, -1, &onebuf, s->prefix);
+		printf("%s\n", one);
+		strbuf_release(&onebuf);
+	}
+}
+
+static void short_status(int null_termination, struct string_list_item *it,
+			 struct wt_status *s)
+{
+	struct wt_status_change_data *d = it->util;
+
+	printf("%c%c ",
+	       !d->index_status ? ' ' : d->index_status,
+	       !d->worktree_status ? ' ' : d->worktree_status);
+	if (null_termination) {
+		fprintf(stdout, "%s%c", it->string, 0);
+		if (d->head_path)
+			fprintf(stdout, "%s%c", d->head_path, 0);
+	} else {
+		struct strbuf onebuf = STRBUF_INIT;
+		const char *one;
+		if (d->head_path) {
+			one = quote_path(d->head_path, -1, &onebuf, s->prefix);
+			printf("%s -> ", one);
+			strbuf_release(&onebuf);
+		}
+		one = quote_path(it->string, -1, &onebuf, s->prefix);
+		printf("%s\n", one);
+		strbuf_release(&onebuf);
+	}
+}
+
+static void short_untracked(int null_termination, struct string_list_item *it,
+			    struct wt_status *s)
+{
+	if (null_termination) {
+		fprintf(stdout, "?? %s%c", it->string, 0);
+	} else {
+		struct strbuf onebuf = STRBUF_INIT;
+		const char *one;
+		one = quote_path(it->string, -1, &onebuf, s->prefix);
+		printf("?? %s\n", one);
+		strbuf_release(&onebuf);
+	}
+}
+
 int cmd_stat(int argc, const char **argv, const char *prefix)
 {
 	struct wt_status s;
+	static int null_termination, shortstatus;
+	int i;
 	unsigned char sha1[20];
 	static struct option builtin_stat_options[] = {
+		OPT_BOOLEAN('s', "short", &shortstatus,
+			    "show status concicely"),
+		OPT_BOOLEAN('z', "null", &null_termination,
+			    "terminate entries with NUL"),
 		{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg,
 		  "mode",
 		  "show untracked files, optional modes: all, normal, no. (Default: all)",
@@ -925,7 +1000,27 @@ int cmd_stat(int argc, const char **argv, const char *prefix)
 	s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
 	wt_status_collect(&s);
 
-	wt_status_print_body(&s);
+	if (shortstatus) {
+		for (i = 0; i < s.change.nr; i++) {
+			struct wt_status_change_data *d;
+			struct string_list_item *it;
+
+			it = &(s.change.items[i]);
+			d = it->util;
+			if (d->stagemask)
+				short_unmerged(null_termination, it, &s);
+			else
+				short_status(null_termination, it, &s);
+		}
+		for (i = 0; i < s.untracked.nr; i++) {
+			struct string_list_item *it;
+
+			it = &(s.untracked.items[i]);
+			short_untracked(null_termination, it, &s);
+		}
+	} else {
+		wt_status_print_body(&s);
+	}
 	return 0;
 }
 
-- 
1.6.4.173.g72959

Re: [PATCH v3 3/8] wt-status: move wt_status_colors[] into wt_status structure

[Jeff King]

On Mon, Aug 10, 2009 at 01:54:20AM -0700, Junio C Hamano wrote:

> @@ -37,6 +38,7 @@ struct wt_status {
>  	int wt_status_relative_paths;
>  	int wt_status_submodule_summary;
>  	enum untracked_status_type show_untracked_files;
> +	char wt_status_colors[6][COLOR_MAXLEN];

Yuck on the magic "6". It should be safe to use

  ARRAY_SIZE(wt_status_colors_default)

since that is computed purely from sizeof's. Though I am not discounting
the possibility that there are compilers which will screw it up.

-Peff

Re: [PATCH v3 2/8] wt-status: move many global settings to wt_status structure

[Jeff King]

On Mon, Aug 10, 2009 at 01:54:19AM -0700, Junio C Hamano wrote:

> --- a/wt-status.h
> +++ b/wt-status.h
> [...]
> @@ -33,8 +32,12 @@ struct wt_status {
>  	const char *reference;
>  	int verbose;
>  	int amend;
> -	int untracked;
>  	int nowarn;
> +	int wt_status_use_color;
> +	int wt_status_relative_paths;
> +	int wt_status_submodule_summary;
> +	enum untracked_status_type show_untracked_files;
> +

Is there a particular reason to use such enormous struct member names?
IOW, inside wt_status, why not just "use_color"?

Other than that, I think this is a very positive change (and in fact, I
like the way this whole series is shaping up).

-Peff