This allows us to select any group of commands by a category defined
in command-list.txt. This is an internal/hidden option so we don't
have to be picky about the category name or worried about exposing too
much.
This will be used later by git-completion.bash to retrieve certain
command groups.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
generate-cmdlist.sh | 17 +++++++++++++++++
git.c | 7 +++++++
help.c | 23 +++++++++++++++++++++++
help.h | 2 ++
4 files changed, 49 insertions(+)
diff --git a/generate-cmdlist.sh b/generate-cmdlist.sh
index 3bcc1ee57d..8d6d8b45ce 100755
--- a/generate-cmdlist.sh
+++ b/generate-cmdlist.sh
@@ -45,6 +45,21 @@ define_categories () {
test "$bit" -gt 32 && die "Urgh.. too many categories?"
}
+define_category_names () {
+ echo
+ echo "/* Category names */"
+ echo "static const char *category_names[] = {"
+ bit=0
+ category_list "$1" |
+ while read cat
+ do
+ echo " \"$cat\", /* (1UL << $bit) */"
+ bit=$(($bit+1))
+ done
+ echo " NULL"
+ echo "};"
+}
+
print_command_list () {
echo "static struct cmdname_help command_list[] = {"
@@ -70,4 +85,6 @@ struct cmdname_help {
"
define_categories "$1"
echo
+define_category_names "$1"
+echo
print_command_list "$1"
diff --git a/git.c b/git.c
index 10907f7266..4d5b8a9931 100644
--- a/git.c
+++ b/git.c
@@ -60,6 +60,13 @@ static int list_cmds(const char *spec)
list_all_main_cmds(&list);
else if (match_token(spec, len, "others"))
list_all_other_cmds(&list);
+ else if (len > 5 && !strncmp(spec, "list-", 5)) {
+ struct strbuf sb = STRBUF_INIT;
+
+ strbuf_add(&sb, spec + 5, len - 5);
+ list_cmds_by_category(&list, sb.buf);
+ strbuf_release(&sb);
+ }
else
die(_("unsupported command listing type '%s'"), spec);
spec += len;
diff --git a/help.c b/help.c
index d5ce9dfcbb..1117f7d1d1 100644
--- a/help.c
+++ b/help.c
@@ -329,6 +329,29 @@ void list_all_other_cmds(struct string_list *list)
clean_cmdnames(&other_cmds);
}
+void list_cmds_by_category(struct string_list *list,
+ const char *cat)
+{
+ int i, n = ARRAY_SIZE(command_list);
+ uint32_t cat_id = 0;
+
+ for (i = 0; category_names[i]; i++) {
+ if (!strcmp(cat, category_names[i])) {
+ cat_id = 1UL << i;
+ break;
+ }
+ }
+ if (!cat_id)
+ die(_("unsupported command listing type '%s'"), cat);
+
+ for (i = 0; i < n; i++) {
+ struct cmdname_help *cmd = command_list + i;
+
+ if (cmd->category & cat_id)
+ string_list_append(list, drop_prefix(cmd->name));
+ }
+}
+
int is_in_cmdlist(struct cmdnames *c, const char *s)
{
int i;
diff --git a/help.h b/help.h
index 97e6c0965e..734bba32d3 100644
--- a/help.h
+++ b/help.h
@@ -21,6 +21,8 @@ static inline void mput_char(char c, unsigned int num)
extern void list_common_cmds_help(void);
extern void list_all_main_cmds(struct string_list *list);
extern void list_all_other_cmds(struct string_list *list);
+extern void list_cmds_by_category(struct string_list *list,
+ const char *category);
extern const char *help_unknown_cmd(const char *cmd);
extern void load_command_list(const char *prefix,
struct cmdnames *main_cmds,
--
2.17.0.705.g3525833791
