*/
#include "cache.h"
#include "strbuf.h"
+#include "string-list.h"
static char bad_path[] = "/bad-path/";
return cleanup_path(buf);
}
-static char *git_vsnpath(char *buf, size_t n, const char *fmt, va_list args)
+static char *vsnpath(char *buf, size_t n, const char *fmt, va_list args)
{
const char *git_dir = get_git_dir();
size_t len;
char *git_snpath(char *buf, size_t n, const char *fmt, ...)
{
+ char *ret;
va_list args;
va_start(args, fmt);
- (void)git_vsnpath(buf, n, fmt, args);
+ ret = vsnpath(buf, n, fmt, args);
va_end(args);
- return buf;
+ return ret;
}
char *git_pathdup(const char *fmt, ...)
{
- char path[PATH_MAX];
+ char path[PATH_MAX], *ret;
va_list args;
va_start(args, fmt);
- (void)git_vsnpath(path, sizeof(path), fmt, args);
+ ret = vsnpath(path, sizeof(path), fmt, args);
va_end(args);
- return xstrdup(path);
+ return xstrdup(ret);
}
char *mkpathdup(const char *fmt, ...)
char *git_path(const char *fmt, ...)
{
- const char *git_dir = get_git_dir();
char *pathname = get_pathname();
va_list args;
- unsigned len;
+ char *ret;
- 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);
+ ret = vsnpath(pathname, PATH_MAX, fmt, args);
va_end(args);
- if (len >= PATH_MAX)
- return bad_path;
- return cleanup_path(pathname);
+ return ret;
}
void home_config_paths(char **global, char **xdg, char *file)
/*
* path = Canonical absolute path
- * prefix_list = Colon-separated list of absolute paths
+ * prefixes = string_list containing normalized, absolute paths without
+ * trailing slashes (except for the root directory, which is denoted by "/").
*
- * Determines, for each path in prefix_list, whether the "prefix" really
+ * Determines, for each path in prefixes, whether the "prefix"
* is an ancestor directory of path. Returns the length of the longest
* ancestor directory, excluding any trailing slashes, or -1 if no prefix
- * is an ancestor. (Note that this means 0 is returned if prefix_list is
- * "/".) "/foo" is not considered an ancestor of "/foobar". Directories
+ * is an ancestor. (Note that this means 0 is returned if prefixes is
+ * ["/"].) "/foo" is not considered an ancestor of "/foobar". Directories
* are not considered to be their own ancestors. path must be in a
* canonical form: empty components, or "." or ".." components are not
- * allowed. prefix_list may be null, which is like "".
+ * allowed.
*/
-int longest_ancestor_length(const char *path, const char *prefix_list)
+int longest_ancestor_length(const char *path, struct string_list *prefixes)
{
- char buf[PATH_MAX+1];
- const char *ceil, *colon;
- int len, max_len = -1;
+ int i, max_len = -1;
- if (prefix_list == NULL || !strcmp(path, "/"))
+ if (!strcmp(path, "/"))
return -1;
- for (colon = ceil = prefix_list; *colon; ceil = colon+1) {
- for (colon = ceil; *colon && *colon != PATH_SEP; colon++);
- len = colon - ceil;
- if (len == 0 || len > PATH_MAX || !is_absolute_path(ceil))
- continue;
- strlcpy(buf, ceil, len+1);
- if (normalize_path_copy(buf, buf) < 0)
- continue;
- len = strlen(buf);
- if (len > 0 && buf[len-1] == '/')
- buf[--len] = '\0';
+ for (i = 0; i < prefixes->nr; i++) {
+ const char *ceil = prefixes->items[i].string;
+ int len = strlen(ceil);
+
+ if (len == 1 && ceil[0] == '/')
+ len = 0; /* root matches anything, with length 0 */
+ else if (!strncmp(path, ceil, len) && path[len] == '/')
+ ; /* match of length len */
+ else
+ continue; /* no match */
- if (!strncmp(path, buf, len) &&
- path[len] == '/' &&
- len > max_len) {
+ if (len > max_len)
max_len = len;
- }
}
return max_len;