mirror of
https://github.com/git/git.git
synced 2024-11-18 16:53:53 +01:00
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/*
|
|
* I'm tired of doing "vsnprintf()" etc just to open a
|
|
* file, so here's a "return static buffer with printf"
|
|
* interface for paths.
|
|
*
|
|
* It's obviously not thread-safe. Sue me. But it's quite
|
|
* useful for doing things like
|
|
*
|
|
* f = open(mkpath("%s/%s.git", base, name), O_RDONLY);
|
|
*
|
|
* which is what it's designed for.
|
|
*/
|
|
#include "cache.h"
|
|
|
|
static char pathname[PATH_MAX];
|
|
static char bad_path[] = "/bad-path/";
|
|
|
|
static char *cleanup_path(char *path)
|
|
{
|
|
/* Clean it up */
|
|
if (!memcmp(path, "./", 2)) {
|
|
path += 2;
|
|
while (*path == '/')
|
|
path++;
|
|
}
|
|
return path;
|
|
}
|
|
|
|
char *mkpath(const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
unsigned len;
|
|
|
|
va_start(args, fmt);
|
|
len = vsnprintf(pathname, PATH_MAX, fmt, args);
|
|
va_end(args);
|
|
if (len >= PATH_MAX)
|
|
return bad_path;
|
|
return cleanup_path(pathname);
|
|
}
|
|
|
|
char *git_path(const char *fmt, ...)
|
|
{
|
|
const char *git_dir = gitenv(GIT_DIR_ENVIRONMENT) ? : DEFAULT_GIT_DIR_ENVIRONMENT;
|
|
va_list args;
|
|
unsigned len;
|
|
|
|
len = strlen(git_dir);
|
|
if (len > PATH_MAX-100)
|
|
return bad_path;
|
|
memcpy(pathname, git_dir, len);
|
|
if (len && git_dir[len-1] != '/')
|
|
pathname[len++] = '/';
|
|
va_start(args, fmt);
|
|
len += vsnprintf(pathname + len, PATH_MAX - len, fmt, args);
|
|
va_end(args);
|
|
if (len >= PATH_MAX)
|
|
return bad_path;
|
|
return cleanup_path(pathname);
|
|
}
|