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run_hook(): allow more than 9 hook arguments

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This is done using the ALLOC_GROW macro.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stephan Beyer 2009-01-17 04:02:55 +01:00 committed by Junio C Hamano
parent cf94ca8ea9
commit 14e6298f12
2 changed files with 10 additions and 10 deletions
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2
Documentation/technical/api-run-command.txt
View File

@ -58,7 +58,7 @@ Functions
The first argument is a pathname to an index file, or NULL
if the hook uses the default index file or no index is needed.
The second argument is the name of the hook.
The further arguments (up to 9) correspond to the hook arguments.
The further arguments correspond to the hook arguments.
The last argument has to be NULL to terminate the arguments list.
If the hook does not exist or is not executable, the return
value will be zero.

18
run-command.c
View File

@ -346,23 +346,22 @@ int finish_async(struct async *async)
int run_hook(const char *index_file, const char *name, ...)
{
struct child_process hook;
const char *argv[10], *env[2];
const char **argv = NULL, *env[2];
char index[PATH_MAX];
va_list args;
int ret;
int i;
size_t i = 0, alloc = 0;
if (access(git_path("hooks/%s", name), X_OK) < 0)
return 0;
va_start(args, name);
argv[0] = git_path("hooks/%s", name);
i = 0;
do {
if (++i >= ARRAY_SIZE(argv))
die("run_hook(): too many arguments");
argv[i] = va_arg(args, const char *);
} while (argv[i]);
ALLOC_GROW(argv, i + 1, alloc);
argv[i++] = git_path("hooks/%s", name);
while (argv[i-1]) {
ALLOC_GROW(argv, i + 1, alloc);
argv[i++] = va_arg(args, const char *);
}
va_end(args);
memset(&hook, 0, sizeof(hook));
@ -377,6 +376,7 @@ int run_hook(const char *index_file, const char *name, ...)
}
ret = start_command(&hook);
free(argv);
if (ret) {
warning("Could not spawn %s", argv[0]);
return ret;