path: add repo_worktree_path and strbuf_repo_worktree_path

Introduce 'repo_worktree_path' and 'strbuf_repo_worktree_path' which
take a repository struct and constructs a path relative to the
repository's worktree.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/path.c b/path.c
index ffc0f10fde9bfc4881de085329133486015e28e8..e485f9f93181778de3acfe3cd4b6811ec82c7940 100644 (file)
--- a/path.c
+++ b/path.c
@@ -506,6 +506,47 @@ const char *worktree_git_path(const struct worktree *wt, const char *fmt, ...)
        return pathname->buf;
 }
 
+static void do_worktree_path(const struct repository *repo,
+                            struct strbuf *buf,
+                            const char *fmt, va_list args)
+{
+       strbuf_addstr(buf, repo->worktree);
+       if(buf->len && !is_dir_sep(buf->buf[buf->len - 1]))
+               strbuf_addch(buf, '/');
+
+       strbuf_vaddf(buf, fmt, args);
+       strbuf_cleanup_path(buf);
+}
+
+char *repo_worktree_path(const struct repository *repo, const char *fmt, ...)
+{
+       struct strbuf path = STRBUF_INIT;
+       va_list args;
+
+       if (!repo->worktree)
+               return NULL;
+
+       va_start(args, fmt);
+       do_worktree_path(repo, &path, fmt, args);
+       va_end(args);
+
+       return strbuf_detach(&path, NULL);
+}
+
+void strbuf_repo_worktree_path(struct strbuf *sb,
+                              const struct repository *repo,
+                              const char *fmt, ...)
+{
+       va_list args;
+
+       if (!repo->worktree)
+               return;
+
+       va_start(args, fmt);
+       do_worktree_path(repo, sb, fmt, args);
+       va_end(args);
+}
+
 /* Returns 0 on success, negative on failure. */
 static int do_submodule_path(struct strbuf *buf, const char *path,
                             const char *fmt, va_list args)

diff --git a/path.h b/path.h
index c779c4aa2878b6cc566f046a1140e47e9361cb33..9541620c79dcda31e4a1b7437a79f0f63b156523 100644 (file)
--- a/path.h
+++ b/path.h
@@ -43,6 +43,14 @@ extern void strbuf_repo_git_path(struct strbuf *sb,
                                 const char *fmt, ...)
        __attribute__((format (printf, 3, 4)));
 
+extern char *repo_worktree_path(const struct repository *repo,
+                               const char *fmt, ...)
+       __attribute__((format (printf, 2, 3)));
+extern void strbuf_repo_worktree_path(struct strbuf *sb,
+                                     const struct repository *repo,
+                                     const char *fmt, ...)
+       __attribute__((format (printf, 3, 4)));
+
 extern void report_linked_checkout_garbage(void);
 
 /*