return 0;
}
+static int have_same_root(const char *path1, const char *path2)
+{
+ int is_abs1, is_abs2;
+
+ is_abs1 = is_absolute_path(path1);
+ is_abs2 = is_absolute_path(path2);
+ return (is_abs1 && is_abs2 && tolower(path1[0]) == tolower(path2[0])) ||
+ (!is_abs1 && !is_abs2);
+}
+
/*
* Give path as relative to prefix.
*
else if (!prefix_len)
return in;
+ if (have_same_root(in, prefix)) {
+ /* bypass dos_drive, for "c:" is identical to "C:" */
+ if (has_dos_drive_prefix(in)) {
+ i = 2;
+ j = 2;
+ }
+ } else {
+ return in;
+ }
+
while (i < prefix_len && j < in_len && prefix[i] == in[j]) {
if (is_dir_sep(prefix[i])) {
while (is_dir_sep(prefix[i]))
return sb->buf;
}
+/*
+ * A simpler implementation of relative_path
+ *
+ * Get relative path by removing "prefix" from "in". This function
+ * first appears in v1.5.6-1-g044bbbc, and makes git_dir shorter
+ * to increase performance when traversing the path to work_tree.
+ */
+const char *remove_leading_path(const char *in, const char *prefix)
+{
+ static char buf[PATH_MAX + 1];
+ int i = 0, j = 0;
+
+ if (!prefix || !prefix[0])
+ return in;
+ while (prefix[i]) {
+ if (is_dir_sep(prefix[i])) {
+ if (!is_dir_sep(in[j]))
+ return in;
+ while (is_dir_sep(prefix[i]))
+ i++;
+ while (is_dir_sep(in[j]))
+ j++;
+ continue;
+ } else if (in[j] != prefix[i]) {
+ return in;
+ }
+ i++;
+ j++;
+ }
+ if (
+ /* "/foo" is a prefix of "/foo" */
+ in[j] &&
+ /* "/foo" is not a prefix of "/foobar" */
+ !is_dir_sep(prefix[i-1]) && !is_dir_sep(in[j])
+ )
+ return in;
+ while (is_dir_sep(in[j]))
+ j++;
+ if (!in[j])
+ strcpy(buf, ".");
+ else
+ strcpy(buf, in + j);
+ return buf;
+}
+
/*
* It is okay if dst == src, but they should not overlap otherwise.
*
void setup_work_tree(void)
{
- struct strbuf sb = STRBUF_INIT;
const char *work_tree, *git_dir;
static int initialized = 0;
if (getenv(GIT_WORK_TREE_ENVIRONMENT))
setenv(GIT_WORK_TREE_ENVIRONMENT, ".", 1);
- set_git_dir(relative_path(git_dir, work_tree, &sb));
+ set_git_dir(remove_leading_path(git_dir, work_tree));
initialized = 1;
-
- strbuf_release(&sb);
}
static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
test "$sym" = "$(test-path-utils real_path "$dir2/syml")"
'
-relative_path /a/b/c/ /a/b/ c/
-relative_path /a/b/c/ /a/b c/
-relative_path /a//b//c/ //a/b// c/ POSIX
-relative_path /a/b /a/b ./
-relative_path /a/b/ /a/b ./
-relative_path /a /a/b ../
-relative_path / /a/b/ ../../
-relative_path /a/c /a/b/ ../c
-relative_path /a/c /a/b ../c
-relative_path /x/y /a/b/ ../../x/y
-relative_path /a/b "<empty>" /a/b
-relative_path /a/b "<null>" /a/b
-relative_path a/b/c/ a/b/ c/
-relative_path a/b/c/ a/b c/
-relative_path a/b//c a//b c
-relative_path a/b/ a/b/ ./
-relative_path a/b/ a/b ./
-relative_path a a/b ../
-relative_path x/y a/b ../../x/y
-relative_path a/c a/b ../c
-relative_path a/b "<empty>" a/b
-relative_path a/b "<null>" a/b
-relative_path "<empty>" /a/b ./
-relative_path "<empty>" "<empty>" ./
-relative_path "<empty>" "<null>" ./
-relative_path "<null>" "<empty>" ./
-relative_path "<null>" "<null>" ./
-relative_path "<null>" /a/b ./
+relative_path /foo/a/b/c/ /foo/a/b/ c/
+relative_path /foo/a/b/c/ /foo/a/b c/
+relative_path /foo/a//b//c/ ///foo/a/b// c/ POSIX
+relative_path /foo/a/b /foo/a/b ./
+relative_path /foo/a/b/ /foo/a/b ./
+relative_path /foo/a /foo/a/b ../
+relative_path / /foo/a/b/ ../../../
+relative_path /foo/a/c /foo/a/b/ ../c
+relative_path /foo/a/c /foo/a/b ../c
+relative_path /foo/x/y /foo/a/b/ ../../x/y
+relative_path /foo/a/b "<empty>" /foo/a/b
+relative_path /foo/a/b "<null>" /foo/a/b
+relative_path foo/a/b/c/ foo/a/b/ c/
+relative_path foo/a/b/c/ foo/a/b c/
+relative_path foo/a/b//c foo/a//b c
+relative_path foo/a/b/ foo/a/b/ ./
+relative_path foo/a/b/ foo/a/b ./
+relative_path foo/a foo/a/b ../
+relative_path foo/x/y foo/a/b ../../x/y
+relative_path foo/a/c foo/a/b ../c
+relative_path foo/a/b /foo/x/y foo/a/b
+relative_path /foo/a/b foo/x/y /foo/a/b
+relative_path d:/a/b D:/a/c ../b MINGW
+relative_path C:/a/b D:/a/c C:/a/b MINGW
+relative_path foo/a/b "<empty>" foo/a/b
+relative_path foo/a/b "<null>" foo/a/b
+relative_path "<empty>" /foo/a/b ./
+relative_path "<empty>" "<empty>" ./
+relative_path "<empty>" "<null>" ./
+relative_path "<null>" "<empty>" ./
+relative_path "<null>" "<null>" ./
+relative_path "<null>" /foo/a/b ./
test_done