Merge branch 'jc/grep-lookahead'

[git.git] / setup.c

diff --git a/setup.c b/setup.c
index 5792eb7ddfbe9a3e520dcf33081a6c098061d643..710e2f3008c79c08cdc507288881c9a58311283a 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -18,9 +18,12 @@ const char *prefix_path(const char *prefix, int len, const char *path)
        if (normalize_path_copy(sanitized, sanitized))
                goto error_out;
        if (is_absolute_path(orig)) {
+               size_t len, total;
                const char *work_tree = get_git_work_tree();
-               size_t len = strlen(work_tree);
-               size_t total = strlen(sanitized) + 1;
+               if (!work_tree)
+                       goto error_out;
+               len = strlen(work_tree);
+               total = strlen(sanitized) + 1;
                if (strncmp(sanitized, work_tree, len) ||
                    (sanitized[len] != '\0' && sanitized[len] != '/')) {
                error_out:
@@ -260,6 +263,8 @@ static int check_repository_format_gently(int *nongit_ok)
 const char *read_gitfile_gently(const char *path)
 {
        char *buf;
+       char *dir;
+       const char *slash;
        struct stat st;
        int fd;
        size_t len;
@@ -284,9 +289,23 @@ const char *read_gitfile_gently(const char *path)
        if (len < 9)
                die("No path in gitfile: %s", path);
        buf[len] = '\0';
-       if (!is_git_directory(buf + 8))
-               die("Not a git repository: %s", buf + 8);
-       path = make_absolute_path(buf + 8);
+       dir = buf + 8;
+
+       if (!is_absolute_path(dir) && (slash = strrchr(path, '/'))) {
+               size_t pathlen = slash+1 - path;
+               size_t dirlen = pathlen + len - 8;
+               dir = xmalloc(dirlen + 1);
+               strncpy(dir, path, pathlen);
+               strncpy(dir + pathlen, buf + 8, len - 8);
+               dir[dirlen] = '\0';
+               free(buf);
+               buf = dir;
+       }
+
+       if (!is_git_directory(dir))
+               die("Not a git repository: %s", dir);
+       path = make_absolute_path(dir);
+
        free(buf);
        return path;
 }