*/
#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);
+ ret = vsnpath(path, sizeof(path), fmt, args);
+ va_end(args);
+ return xstrdup(ret);
+}
+
+char *mkpathdup(const char *fmt, ...)
+{
+ char *path;
+ struct strbuf sb = STRBUF_INIT;
va_list args;
+
va_start(args, fmt);
- (void)git_vsnpath(path, sizeof(path), fmt, args);
+ strbuf_vaddf(&sb, fmt, args);
va_end(args);
- return xstrdup(path);
+ path = xstrdup(cleanup_path(sb.buf));
+
+ strbuf_release(&sb);
+ return path;
}
char *mkpath(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)
+{
+ char *xdg_home = getenv("XDG_CONFIG_HOME");
+ char *home = getenv("HOME");
+ char *to_free = NULL;
+
+ if (!home) {
+ if (global)
+ *global = NULL;
+ } else {
+ if (!xdg_home) {
+ to_free = mkpathdup("%s/.config", home);
+ xdg_home = to_free;
+ }
+ if (global)
+ *global = mkpathdup("%s/.gitconfig", home);
+ }
+
+ if (!xdg_home)
+ *xdg = NULL;
+ else
+ *xdg = mkpathdup("%s/git/%s", xdg_home, file);
+
+ free(to_free);
}
char *git_path_submodule(const char *path, const char *fmt, ...)
strbuf_addch(&buf, '/');
strbuf_addstr(&buf, ".git");
- git_dir = read_gitfile_gently(buf.buf);
+ git_dir = read_gitfile(buf.buf);
if (git_dir) {
strbuf_reset(&buf);
strbuf_addstr(&buf, git_dir);
return cleanup_path(pathname);
}
-/* git_mkstemp() - create tmp file honoring TMPDIR variable */
-int git_mkstemp(char *path, size_t len, const char *template)
-{
- const char *tmp;
- size_t n;
-
- tmp = getenv("TMPDIR");
- if (!tmp)
- tmp = "/tmp";
- n = snprintf(path, len, "%s/%s", tmp, template);
- if (len <= n) {
- errno = ENAMETOOLONG;
- return -1;
- }
- return mkstemp(path);
-}
-
-/* git_mkstemps() - create tmp file with suffix honoring TMPDIR variable. */
-int git_mkstemps(char *path, size_t len, const char *template, int suffix_len)
-{
- const char *tmp;
- size_t n;
-
- tmp = getenv("TMPDIR");
- if (!tmp)
- tmp = "/tmp";
- n = snprintf(path, len, "%s/%s", tmp, template);
- if (len <= n) {
- errno = ENAMETOOLONG;
- return -1;
- }
- return mkstemps(path, suffix_len);
-}
-
-/* Adapted from libiberty's mkstemp.c. */
-
-#undef TMP_MAX
-#define TMP_MAX 16384
-
-int git_mkstemps_mode(char *pattern, int suffix_len, int mode)
-{
- static const char letters[] =
- "abcdefghijklmnopqrstuvwxyz"
- "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "0123456789";
- static const int num_letters = 62;
- uint64_t value;
- struct timeval tv;
- char *template;
- size_t len;
- int fd, count;
-
- len = strlen(pattern);
-
- if (len < 6 + suffix_len) {
- errno = EINVAL;
- return -1;
- }
-
- if (strncmp(&pattern[len - 6 - suffix_len], "XXXXXX", 6)) {
- errno = EINVAL;
- return -1;
- }
-
- /*
- * Replace pattern's XXXXXX characters with randomness.
- * Try TMP_MAX different filenames.
- */
- gettimeofday(&tv, NULL);
- value = ((size_t)(tv.tv_usec << 16)) ^ tv.tv_sec ^ getpid();
- template = &pattern[len - 6 - suffix_len];
- for (count = 0; count < TMP_MAX; ++count) {
- uint64_t v = value;
- /* Fill in the random bits. */
- template[0] = letters[v % num_letters]; v /= num_letters;
- template[1] = letters[v % num_letters]; v /= num_letters;
- template[2] = letters[v % num_letters]; v /= num_letters;
- template[3] = letters[v % num_letters]; v /= num_letters;
- template[4] = letters[v % num_letters]; v /= num_letters;
- template[5] = letters[v % num_letters]; v /= num_letters;
-
- fd = open(pattern, O_CREAT | O_EXCL | O_RDWR, mode);
- if (fd > 0)
- return fd;
- /*
- * Fatal error (EPERM, ENOSPC etc).
- * It doesn't make sense to loop.
- */
- if (errno != EEXIST)
- break;
- /*
- * This is a random value. It is only necessary that
- * the next TMP_MAX values generated by adding 7777 to
- * VALUE are different with (module 2^32).
- */
- value += 7777;
- }
- /* We return the null string if we can't find a unique file name. */
- pattern[0] = '\0';
- return -1;
-}
-
-int git_mkstemp_mode(char *pattern, int mode)
-{
- /* mkstemp is just mkstemps with no suffix */
- return git_mkstemps_mode(pattern, 0, mode);
-}
-
-int gitmkstemps(char *pattern, int suffix_len)
-{
- return git_mkstemps_mode(pattern, suffix_len, 0600);
-}
-
int validate_headref(const char *path)
{
struct stat st;
* links. User relative paths are also returned as they are given,
* except DWIM suffixing.
*/
-char *enter_repo(char *path, int strict)
+const char *enter_repo(const char *path, int strict)
{
static char used_path[PATH_MAX];
static char validated_path[PATH_MAX];
if (!strict) {
static const char *suffix[] = {
- ".git/.git", "/.git", ".git", "", NULL,
+ "/.git", "", ".git/.git", ".git", NULL,
};
+ const char *gitfile;
int len = strlen(path);
int i;
- while ((1 < len) && (path[len-1] == '/')) {
- path[len-1] = 0;
+ while ((1 < len) && (path[len-1] == '/'))
len--;
- }
+
if (PATH_MAX <= len)
return NULL;
- if (path[0] == '~') {
- char *newpath = expand_user_path(path);
+ strncpy(used_path, path, len); used_path[len] = 0 ;
+ strcpy(validated_path, used_path);
+
+ if (used_path[0] == '~') {
+ char *newpath = expand_user_path(used_path);
if (!newpath || (PATH_MAX - 10 < strlen(newpath))) {
free(newpath);
return NULL;
* anyway.
*/
strcpy(used_path, newpath); free(newpath);
- strcpy(validated_path, path);
- path = used_path;
}
else if (PATH_MAX - 10 < len)
return NULL;
- else {
- path = strcpy(used_path, path);
- strcpy(validated_path, path);
- }
- len = strlen(path);
+ len = strlen(used_path);
for (i = 0; suffix[i]; i++) {
- strcpy(path + len, suffix[i]);
- if (!access(path, F_OK)) {
+ struct stat st;
+ strcpy(used_path + len, suffix[i]);
+ if (!stat(used_path, &st) &&
+ (S_ISREG(st.st_mode) ||
+ (S_ISDIR(st.st_mode) && is_git_directory(used_path)))) {
strcat(validated_path, suffix[i]);
break;
}
}
- if (!suffix[i] || chdir(path))
+ if (!suffix[i])
+ return NULL;
+ gitfile = read_gitfile(used_path) ;
+ if (gitfile)
+ strcpy(used_path, gitfile);
+ if (chdir(used_path))
return NULL;
path = validated_path;
}
return 0;
}
-const char *make_relative_path(const char *abs, const char *base)
+const char *relative_path(const char *abs, const char *base)
{
static char buf[PATH_MAX + 1];
int i = 0, j = 0;
/*
* 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 (!strncmp(path, buf, len) &&
- path[len] == '/' &&
- len > max_len) {
+ 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 (len > max_len)
max_len = len;
- }
}
return max_len;