docs: fix filter-branch subdir example for exotic repo names

diff --git a/setup.c b/setup.c
index 3d732697af600ccc3c6017844c73e1d3b0dac738..dadc66659a4037b614b215b7f812c4df8969562b 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -411,6 +411,15 @@ static const char *setup_discovered_git_dir(const char *gitdir,
        if (check_repository_format_gently(gitdir, nongit_ok))
                return NULL;
 
+       /* --work-tree is set without --git-dir; use discovered one */
+       if (getenv(GIT_WORK_TREE_ENVIRONMENT) || git_work_tree_cfg) {
+               if (offset != len && !is_absolute_path(gitdir))
+                       gitdir = xstrdup(make_absolute_path(gitdir));
+               if (chdir(cwd))
+                       die_errno("Could not come back to cwd");
+               return setup_explicit_git_dir(gitdir, cwd, len, nongit_ok);
+       }
+
        /* #16.2, #17.2, #20.2, #21.2, #24, #25, #28, #29 (see t1510) */
        if (is_bare_repository_cfg > 0) {
                set_git_dir(offset == len ? gitdir : make_absolute_path(gitdir));
@@ -443,6 +452,16 @@ static const char *setup_bare_git_dir(char *cwd, int offset, int len, int *nongi
        if (check_repository_format_gently(".", nongit_ok))
                return NULL;
 
+       /* --work-tree is set without --git-dir; use discovered one */
+       if (getenv(GIT_WORK_TREE_ENVIRONMENT) || git_work_tree_cfg) {
+               const char *gitdir;
+
+               gitdir = offset == len ? "." : xmemdupz(cwd, offset);
+               if (chdir(cwd))
+                       die_errno("Could not come back to cwd");
+               return setup_explicit_git_dir(gitdir, cwd, len, nongit_ok);
+       }
+
        inside_git_dir = 1;
        inside_work_tree = 0;
        if (offset != len) {