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From: "Slavica Djukic via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Jeff Hostetler <git@jeffhostetler.com>, Jeff King <peff@peff.net>,
	Junio C Hamano <gitster@pobox.com>,
	Slavica Djukic <slawica92@hotmail.com>
Subject: [PATCH v4 08/11] built-in add -i: show unique prefixes of the commands
Date: Tue, 27 Aug 2019 05:57:59 -0700 (PDT)	[thread overview]
Message-ID: <bc7a74f697741c723ca670b543392b3f8fc0e35b.1566910672.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.170.v4.git.gitgitgadget@gmail.com>

From: Slavica Djukic <slawica92@hotmail.com>

Just like in the Perl script `git-add--interactive.perl`, for each
command a unique prefix is determined (if there exists any within the
given parameters), and shown in the list, and accepted as a shortcut for
the command.

We use the prefix map implementation that we just added in the previous
commit for that purpose.

Signed-off-by: Slavica Djukic <slawica92@hotmail.com>
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
---
 add-interactive.c | 69 ++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 56 insertions(+), 13 deletions(-)

diff --git a/add-interactive.c b/add-interactive.c
index bbab69d4bc..12a4c2adb8 100644
--- a/add-interactive.c
+++ b/add-interactive.c
@@ -5,6 +5,7 @@
 #include "diffcore.h"
 #include "revision.h"
 #include "refs.h"
+#include "prefix-map.h"
 
 struct add_i_state {
 	struct repository *r;
@@ -46,18 +47,32 @@ static int init_add_i_state(struct repository *r, struct add_i_state *s)
 	return 0;
 }
 
-struct item {
-	const char *name;
-};
+static ssize_t find_unique(const char *string,
+			   struct prefix_item **list, size_t nr)
+{
+	ssize_t found = -1, i;
+
+	for (i = 0; i < nr; i++) {
+		struct prefix_item *item = list[i];
+		if (!starts_with(item->name, string))
+			continue;
+		if (found >= 0)
+			return -1;
+		found = i;
+	}
+
+	return found;
+}
 
 struct list_options {
 	int columns;
 	const char *header;
-	void (*print_item)(int i, struct item *item, void *print_item_data);
+	void (*print_item)(int i, struct prefix_item *item,
+			   void *print_item_data);
 	void *print_item_data;
 };
 
-static void list(struct item **list, size_t nr,
+static void list(struct prefix_item **list, size_t nr,
 		 struct add_i_state *s, struct list_options *opts)
 {
 	int i, last_lf = 0;
@@ -100,13 +115,15 @@ struct list_and_choose_options {
  * If an error occurred, returns `LIST_AND_CHOOSE_ERROR`. Upon EOF,
  * `LIST_AND_CHOOSE_QUIT` is returned.
  */
-static ssize_t list_and_choose(struct item **items, size_t nr,
+static ssize_t list_and_choose(struct prefix_item **items, size_t nr,
 			       struct add_i_state *s,
 			       struct list_and_choose_options *opts)
 {
 	struct strbuf input = STRBUF_INIT;
 	ssize_t res = LIST_AND_CHOOSE_ERROR;
 
+	find_unique_prefixes(items, nr, 1, 4);
+
 	for (;;) {
 		char *p, *endp;
 
@@ -146,6 +163,9 @@ static ssize_t list_and_choose(struct item **items, size_t nr,
 			}
 
 			p[sep] = '\0';
+			if (index < 0)
+				index = find_unique(p, items, nr);
+
 			if (index < 0 || index >= nr)
 				printf(_("Huh (%s)?\n"), p);
 			else {
@@ -171,7 +191,7 @@ struct adddel {
 
 struct file_list {
 	struct file_item {
-		struct item item;
+		struct prefix_item item;
 		struct adddel index, worktree;
 	} **file;
 	size_t nr, alloc;
@@ -338,12 +358,29 @@ static void populate_wi_changes(struct strbuf *buf,
 		strbuf_addstr(buf, no_changes);
 }
 
+/* filters out prefixes which have special meaning to list_and_choose() */
+static int is_valid_prefix(const char *prefix, size_t prefix_len)
+{
+	return prefix_len && prefix &&
+		/*
+		 * We expect `prefix` to be NUL terminated, therefore this
+		 * `strcspn()` call is okay, even if it might do much more
+		 * work than strictly necessary.
+		 */
+		strcspn(prefix, " \t\r\n,") >= prefix_len &&	/* separators */
+		*prefix != '-' &&				/* deselection */
+		!isdigit(*prefix) &&				/* selection */
+		(prefix_len != 1 ||
+		 (*prefix != '*' &&				/* "all" wildcard */
+		  *prefix != '?'));				/* prompt help */
+}
+
 struct print_file_item_data {
 	const char *modified_fmt;
 	struct strbuf buf, index, worktree;
 };
 
-static void print_file_item(int i, struct item *item,
+static void print_file_item(int i, struct prefix_item *item,
 			    void *print_file_item_data)
 {
 	struct file_item *c = (struct file_item *)item;
@@ -370,20 +407,26 @@ static int run_status(struct add_i_state *s, const struct pathspec *ps,
 		return -1;
 
 	if (files->nr)
-		list((struct item **)files->file, files->nr, s, opts);
+		list((struct prefix_item **)files->file, files->nr, s, opts);
 	putchar('\n');
 
 	return 0;
 }
 
-static void print_command_item(int i, struct item *item,
+static void print_command_item(int i, struct prefix_item *item,
 			       void *print_command_item_data)
 {
-	printf(" %2d: %s", i + 1, item->name);
+	if (!item->prefix_length ||
+	    !is_valid_prefix(item->name, item->prefix_length))
+		printf(" %2d: %s", i + 1, item->name);
+	else
+		printf(" %3d: [%.*s]%s", i + 1,
+		       (int)item->prefix_length, item->name,
+		       item->name + item->prefix_length);
 }
 
 struct command_item {
-	struct item item;
+	struct prefix_item item;
 	int (*command)(struct add_i_state *s, const struct pathspec *ps,
 		       struct file_list *files, struct list_options *opts);
 };
@@ -425,7 +468,7 @@ int run_add_i(struct repository *r, const struct pathspec *ps)
 		res = -1;
 
 	for (;;) {
-		i = list_and_choose((struct item **)commands,
+		i = list_and_choose((struct prefix_item **)commands,
 				    ARRAY_SIZE(commands), &s, &main_loop_opts);
 		if (i == LIST_AND_CHOOSE_QUIT) {
 			printf(_("Bye.\n"));
-- 
gitgitgadget


  parent reply	other threads:[~2019-08-27 12:58 UTC|newest]

Thread overview: 124+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-10 17:37 [PATCH 00/11] git add -i: add a rudimentary version in C (supporting only status and help so far) Johannes Schindelin via GitGitGadget
2019-04-10 17:37 ` [PATCH 01/11] Start to implement a built-in version of `git add --interactive` Johannes Schindelin via GitGitGadget
2019-04-18 14:31   ` Jeff Hostetler
2019-04-18 16:06     ` Jeff King
2019-04-30 23:40       ` Johannes Schindelin
2019-05-01  2:21         ` Jeff King
2019-05-13 11:14           ` Johannes Schindelin
2019-04-10 17:37 ` [PATCH 02/11] diff: export diffstat interface Daniel Ferreira via GitGitGadget
2019-04-10 17:37 ` [PATCH 03/11] built-in add -i: implement the `status` command Daniel Ferreira via GitGitGadget
2019-04-10 17:37 ` [PATCH 04/11] built-in add -i: refresh the index before running `status` Johannes Schindelin via GitGitGadget
2019-04-10 17:37 ` [PATCH 05/11] built-in add -i: color the header in the `status` command Johannes Schindelin via GitGitGadget
2019-04-10 17:37 ` [PATCH 07/11] Add a function to determine unique prefixes for a list of strings Slavica Djukic via GitGitGadget
2019-04-18 17:57   ` Jeff Hostetler
2019-05-13 12:48     ` Johannes Schindelin
2019-04-10 17:37 ` [PATCH 06/11] built-in add -i: implement the main loop Johannes Schindelin via GitGitGadget
2019-04-18 16:49   ` Jeff Hostetler
2019-05-13 12:04     ` Johannes Schindelin
2019-04-10 17:37 ` [PATCH 08/11] built-in add -i: show unique prefixes of the commands Slavica Djukic via GitGitGadget
2019-04-10 17:37 ` [PATCH 09/11] built-in add -i: support `?` (prompt help) Johannes Schindelin via GitGitGadget
2019-04-10 17:37 ` [PATCH 10/11] built-in add -i: use color in the main loop Slavica Djukic via GitGitGadget
2019-04-10 17:37 ` [PATCH 11/11] built-in add -i: implement the `help` command Johannes Schindelin via GitGitGadget
2019-05-13 17:27 ` [PATCH v2 00/11] git add -i: add a rudimentary version in C (supporting only status and help so far) Johannes Schindelin via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 01/11] Start to implement a built-in version of `git add --interactive` Johannes Schindelin via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 02/11] diff: export diffstat interface Daniel Ferreira via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 03/11] built-in add -i: implement the `status` command Daniel Ferreira via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 04/11] built-in add -i: refresh the index before running `status` Johannes Schindelin via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 06/11] built-in add -i: implement the main loop Johannes Schindelin via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 05/11] built-in add -i: color the header in the `status` command Johannes Schindelin via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 07/11] Add a function to determine unique prefixes for a list of strings Slavica Djukic via GitGitGadget
2019-05-13 17:27   ` [PATCH v2 08/11] built-in add -i: show unique prefixes of the commands Slavica Djukic via GitGitGadget
2019-05-13 17:28   ` [PATCH v2 09/11] built-in add -i: support `?` (prompt help) Johannes Schindelin via GitGitGadget
2019-05-13 17:28   ` [PATCH v2 10/11] built-in add -i: use color in the main loop Slavica Djukic via GitGitGadget
2019-05-13 17:28   ` [PATCH v2 11/11] built-in add -i: implement the `help` command Johannes Schindelin via GitGitGadget
2019-07-16 14:58   ` [PATCH v3 00/11] git add -i: add a rudimentary version in C (supporting only status and help so far) Johannes Schindelin via GitGitGadget
2019-07-16 14:58     ` [PATCH v3 01/11] Start to implement a built-in version of `git add --interactive` Johannes Schindelin via GitGitGadget
2019-07-31 17:52       ` Junio C Hamano
2019-08-26 21:26         ` Johannes Schindelin
2019-08-27 22:25           ` Junio C Hamano
2019-08-28 15:06             ` Johannes Schindelin
2019-08-28 15:37               ` Junio C Hamano
2019-07-16 14:58     ` [PATCH v3 02/11] diff: export diffstat interface Daniel Ferreira via GitGitGadget
2019-07-31 17:59       ` Junio C Hamano
2019-08-27  9:22         ` Johannes Schindelin
2019-07-16 14:58     ` [PATCH v3 03/11] built-in add -i: implement the `status` command Daniel Ferreira via GitGitGadget
2019-07-31 18:12       ` Junio C Hamano
2019-08-27 10:04         ` Johannes Schindelin
2019-07-16 14:58     ` [PATCH v3 04/11] built-in add -i: refresh the index before running `status` Johannes Schindelin via GitGitGadget
2019-07-16 14:58     ` [PATCH v3 05/11] built-in add -i: color the header in the `status` command Johannes Schindelin via GitGitGadget
2019-07-16 14:58     ` [PATCH v3 06/11] built-in add -i: implement the main loop Johannes Schindelin via GitGitGadget
2019-07-31 18:14       ` Junio C Hamano
2019-07-16 14:58     ` [PATCH v3 08/11] built-in add -i: show unique prefixes of the commands Slavica Djukic via GitGitGadget
2019-07-16 14:58     ` [PATCH v3 07/11] Add a function to determine unique prefixes for a list of strings Slavica Djukic via GitGitGadget
2019-07-31 18:39       ` Junio C Hamano
2019-08-24 12:38       ` SZEDER Gábor
2019-08-27 12:14         ` Johannes Schindelin
2019-08-28 16:30           ` SZEDER Gábor
2019-08-28 16:34             ` [PATCH] [PoC] A simpler find_unique_prefixes() implementation SZEDER Gábor
2019-08-30 20:12               ` Johannes Schindelin
2019-07-16 14:58     ` [PATCH v3 09/11] built-in add -i: support `?` (prompt help) Johannes Schindelin via GitGitGadget
2019-07-16 14:58     ` [PATCH v3 10/11] built-in add -i: use color in the main loop Slavica Djukic via GitGitGadget
2019-07-16 14:58     ` [PATCH v3 11/11] built-in add -i: implement the `help` command Johannes Schindelin via GitGitGadget
2019-08-02 21:04       ` Junio C Hamano
2019-08-02 22:26         ` Jeff King
2019-07-16 18:38     ` [PATCH v3 00/11] git add -i: add a rudimentary version in C (supporting only status and help so far) Johannes Schindelin
2019-08-02 21:06       ` Junio C Hamano
2019-08-27 12:57     ` [PATCH v4 " Johannes Schindelin via GitGitGadget
2019-08-27 12:57       ` [PATCH v4 01/11] Start to implement a built-in version of `git add --interactive` Johannes Schindelin via GitGitGadget
2019-08-27 12:57       ` [PATCH v4 02/11] diff: export diffstat interface Daniel Ferreira via GitGitGadget
2019-08-27 12:57       ` [PATCH v4 03/11] built-in add -i: implement the `status` command Daniel Ferreira via GitGitGadget
2019-08-27 12:57       ` [PATCH v4 04/11] built-in add -i: refresh the index before running `status` Johannes Schindelin via GitGitGadget
2019-08-27 12:57       ` [PATCH v4 05/11] built-in add -i: color the header in the `status` command Johannes Schindelin via GitGitGadget
2019-08-27 12:57       ` [PATCH v4 06/11] built-in add -i: implement the main loop Johannes Schindelin via GitGitGadget
2019-08-27 12:57       ` [PATCH v4 07/11] Add a function to determine unique prefixes for a list of strings Slavica Djukic via GitGitGadget
2019-08-27 12:57       ` Slavica Djukic via GitGitGadget [this message]
2019-08-27 12:58       ` [PATCH v4 09/11] built-in add -i: support `?` (prompt help) Johannes Schindelin via GitGitGadget
2019-08-27 12:58       ` [PATCH v4 11/11] built-in add -i: implement the `help` command Johannes Schindelin via GitGitGadget
2019-08-27 12:58       ` [PATCH v4 10/11] built-in add -i: use color in the main loop Slavica Djukic via GitGitGadget
2019-11-04 12:15       ` [PATCH v5 0/9] git add -i: add a rudimentary version in C (supporting only status and help so far) Johannes Schindelin via GitGitGadget
2019-11-04 12:15         ` [PATCH v5 1/9] Start to implement a built-in version of `git add --interactive` Johannes Schindelin via GitGitGadget
2019-11-08  4:49           ` Junio C Hamano
2019-11-09 11:06             ` Johannes Schindelin
2019-11-10  7:18               ` Junio C Hamano
2019-11-11  9:15                 ` Johannes Schindelin
2019-11-11 12:09                   ` Junio C Hamano
2019-11-12 15:03                     ` Johannes Schindelin
2019-11-13  3:54                       ` Junio C Hamano
2019-11-13 12:30                         ` Johannes Schindelin
2019-11-13 14:01                           ` Junio C Hamano
2019-11-04 12:15         ` [PATCH v5 2/9] diff: export diffstat interface Daniel Ferreira via GitGitGadget
2019-11-08  4:56           ` Junio C Hamano
2019-11-04 12:15         ` [PATCH v5 3/9] built-in add -i: implement the `status` command Daniel Ferreira via GitGitGadget
2019-11-08  5:01           ` Junio C Hamano
2019-11-04 12:15         ` [PATCH v5 4/9] built-in add -i: color the header in " Slavica Đukić via GitGitGadget
2019-11-04 12:15         ` [PATCH v5 5/9] built-in add -i: implement the main loop Johannes Schindelin via GitGitGadget
2019-11-08  5:17           ` Junio C Hamano
2019-11-09 11:21             ` Johannes Schindelin
2019-11-04 12:15         ` [PATCH v5 6/9] built-in add -i: show unique prefixes of the commands Johannes Schindelin via GitGitGadget
2019-11-04 12:15         ` [PATCH v5 7/9] built-in add -i: support `?` (prompt help) Johannes Schindelin via GitGitGadget
2019-11-04 12:15         ` [PATCH v5 8/9] built-in add -i: use color in the main loop Slavica Đukić via GitGitGadget
2019-11-04 12:15         ` [PATCH v5 9/9] built-in add -i: implement the `help` command Slavica Đukić via GitGitGadget
2019-11-13 12:40         ` [PATCH v6 0/9] git add -i: add a rudimentary version in C (supporting only status and help so far) Johannes Schindelin via GitGitGadget
2019-11-13 12:40           ` [PATCH v6 1/9] Start to implement a built-in version of `git add --interactive` Johannes Schindelin via GitGitGadget
2019-11-14  2:15             ` Junio C Hamano
2019-11-14 15:07               ` Johannes Schindelin
2019-11-15  4:35                 ` Junio C Hamano
2019-11-13 12:40           ` [PATCH v6 2/9] diff: export diffstat interface Daniel Ferreira via GitGitGadget
2019-11-13 12:40           ` [PATCH v6 3/9] built-in add -i: implement the `status` command Daniel Ferreira via GitGitGadget
2019-11-13 12:41           ` [PATCH v6 4/9] built-in add -i: color the header in " Slavica Đukić via GitGitGadget
2019-11-13 12:41           ` [PATCH v6 5/9] built-in add -i: implement the main loop Johannes Schindelin via GitGitGadget
2019-11-13 12:41           ` [PATCH v6 6/9] built-in add -i: show unique prefixes of the commands Johannes Schindelin via GitGitGadget
2019-11-13 12:41           ` [PATCH v6 7/9] built-in add -i: support `?` (prompt help) Johannes Schindelin via GitGitGadget
2019-11-13 12:41           ` [PATCH v6 8/9] built-in add -i: use color in the main loop Slavica Đukić via GitGitGadget
2019-11-13 12:41           ` [PATCH v6 9/9] built-in add -i: implement the `help` command Slavica Đukić via GitGitGadget
2019-11-13 12:46           ` [PATCH v6 0/9] git add -i: add a rudimentary version in C (supporting only status and help so far) Johannes Schindelin
2019-11-15 11:11           ` [PATCH v7 " Johannes Schindelin via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 1/9] Start to implement a built-in version of `git add --interactive` Johannes Schindelin via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 2/9] diff: export diffstat interface Daniel Ferreira via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 3/9] built-in add -i: implement the `status` command Daniel Ferreira via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 4/9] built-in add -i: color the header in " Slavica Đukić via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 5/9] built-in add -i: implement the main loop Johannes Schindelin via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 6/9] built-in add -i: show unique prefixes of the commands Johannes Schindelin via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 7/9] built-in add -i: support `?` (prompt help) Johannes Schindelin via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 8/9] built-in add -i: use color in the main loop Slavica Đukić via GitGitGadget
2019-11-15 11:11             ` [PATCH v7 9/9] built-in add -i: implement the `help` command Slavica Đukić via GitGitGadget

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