Other builtins may want to check if a given command is a valid git
command or not as well. Additionally add a new parameter that specifies
a custom prefix, so that the "git-" prefix is no longer hardwired.
Useful for example to limit the search for "git-merge-*".
Signed-off-by: Miklos Vajna <vmiklos@xxxxxxxxxxxxxx>
---
Makefile | 1 +
help.c | 25 ++++++++++++++-----------
help.h | 6 ++++++
3 files changed, 21 insertions(+), 11 deletions(-)
create mode 100644 help.h
diff --git a/Makefile b/Makefile
index b01cf1c..85e79f6 100644
--- a/Makefile
+++ b/Makefile
@@ -346,6 +346,7 @@ LIB_H += git-compat-util.h
LIB_H += graph.h
LIB_H += grep.h
LIB_H += hash.h
+LIB_H += help.h
LIB_H += list-objects.h
LIB_H += ll-merge.h
LIB_H += log-tree.h
diff --git a/help.c b/help.c
index bfc84ae..fb93df0 100644
--- a/help.c
+++ b/help.c
@@ -418,17 +418,20 @@ static int is_executable(const char *name)
}
static unsigned int list_commands_in_dir(struct cmdnames *cmds,
- const char *path)
+ const char *path,
+ const char *prefix)
{
unsigned int longest = 0;
- const char *prefix = "git-";
- int prefix_len = strlen(prefix);
+ int prefix_len;
DIR *dir = opendir(path);
struct dirent *de;
if (!dir || chdir(path))
return 0;
+ if (!prefix)
+ prefix = "git-";
+ prefix_len = strlen(prefix);
while ((de = readdir(dir)) != NULL) {
int entlen;
@@ -452,7 +455,7 @@ static unsigned int list_commands_in_dir(struct cmdnames *cmds,
return longest;
}
-static unsigned int load_command_list(void)
+static unsigned int load_command_list(const char *prefix)
{
unsigned int longest = 0;
unsigned int len;
@@ -461,7 +464,7 @@ static unsigned int load_command_list(void)
const char *exec_path = git_exec_path();
if (exec_path)
- longest = list_commands_in_dir(&main_cmds, exec_path);
+ longest = list_commands_in_dir(&main_cmds, exec_path, prefix);
if (!env_path) {
fprintf(stderr, "PATH not set\n");
@@ -473,7 +476,7 @@ static unsigned int load_command_list(void)
if ((colon = strchr(path, PATH_SEP)))
*colon = 0;
- len = list_commands_in_dir(&other_cmds, path);
+ len = list_commands_in_dir(&other_cmds, path, prefix);
if (len > longest)
longest = len;
@@ -497,7 +500,7 @@ static unsigned int load_command_list(void)
static void list_commands(void)
{
- unsigned int longest = load_command_list();
+ unsigned int longest = load_command_list(NULL);
const char *exec_path = git_exec_path();
if (main_cmds.cnt) {
@@ -543,9 +546,9 @@ static int is_in_cmdlist(struct cmdnames *c, const char *s)
return 0;
}
-static int is_git_command(const char *s)
+int is_git_command(const char *s, const char *prefix)
{
- load_command_list();
+ load_command_list(prefix);
return is_in_cmdlist(&main_cmds, s) ||
is_in_cmdlist(&other_cmds, s);
}
@@ -566,7 +569,7 @@ static const char *cmd_to_page(const char *git_cmd)
return "git";
else if (!prefixcmp(git_cmd, "git"))
return git_cmd;
- else if (is_git_command(git_cmd))
+ else if (is_git_command(git_cmd, NULL))
return prepend("git-", git_cmd);
else
return prepend("git", git_cmd);
@@ -704,7 +707,7 @@ int cmd_help(int argc, const char **argv, const char *prefix)
}
alias = alias_lookup(argv[0]);
- if (alias && !is_git_command(argv[0])) {
+ if (alias && !is_git_command(argv[0], NULL)) {
printf("`git %s' is aliased to `%s'\n", argv[0], alias);
return 0;
}
diff --git a/help.h b/help.h
new file mode 100644
index 0000000..73da8d6
--- /dev/null
+++ b/help.h
@@ -0,0 +1,6 @@
+#ifndef HELP_H
+#define HELP_H
+
+int is_git_command(const char *s, const char *prefix);
+
+#endif /* HELP_H */
--
1.6.0.rc0.14.g95f8.dirty
--
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