diff options
| -rw-r--r-- | cache.h | 1 | ||||
| -rw-r--r-- | path.c | 65 | ||||
| -rw-r--r-- | setup.c | 5 | ||||
| -rwxr-xr-x | t/t0060-path-utils.sh | 60 |
4 files changed, 99 insertions, 32 deletions
@@ -751,6 +751,7 @@ int is_directory(const char *); const char *real_path(const char *path); const char *real_path_if_valid(const char *path); const char *absolute_path(const char *path); +const char *remove_leading_path(const char *in, const char *prefix); const char *relative_path(const char *in, const char *prefix, struct strbuf *sb); int normalize_path_copy_len(char *dst, const char *src, int *prefix_len); int normalize_path_copy(char *dst, const char *src); @@ -434,6 +434,16 @@ int adjust_shared_perm(const char *path) 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. * @@ -454,6 +464,16 @@ const char *relative_path(const char *in, const char *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])) @@ -531,6 +551,51 @@ const char *relative_path(const char *in, const char *prefix, } /* + * 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. * * Performs the following normalizations on src, storing the result in dst: @@ -227,7 +227,6 @@ int is_inside_work_tree(void) void setup_work_tree(void) { - struct strbuf sb = STRBUF_INIT; const char *work_tree, *git_dir; static int initialized = 0; @@ -247,10 +246,8 @@ void setup_work_tree(void) 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) diff --git a/t/t0060-path-utils.sh b/t/t0060-path-utils.sh index 2bd5e32745..07c10c8dca 100755 --- a/t/t0060-path-utils.sh +++ b/t/t0060-path-utils.sh @@ -190,33 +190,37 @@ test_expect_success SYMLINKS 'real path works on symlinks' ' 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 |