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-rw-r--r--third_party/git/chdir-notify.h73
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diff --git a/third_party/git/chdir-notify.h b/third_party/git/chdir-notify.h
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--- a/third_party/git/chdir-notify.h
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-#ifndef CHDIR_NOTIFY_H
-#define CHDIR_NOTIFY_H
-
-/*
- * An API to let code "subscribe" to changes to the current working directory.
- * The general idea is that some code asks to be notified when the working
- * directory changes, and other code that calls chdir uses a special wrapper
- * that notifies everyone.
- */
-
-/*
- * Callers who need to know about changes can do:
- *
- *   void foo(const char *old_path, const char *new_path, void *data)
- *   {
- *	warning("switched from %s to %s!", old_path, new_path);
- *   }
- *   ...
- *   chdir_notify_register("description", foo, data);
- *
- * In practice most callers will want to move a relative path to the new root;
- * they can use the reparent_relative_path() helper for that. If that's all
- * you're doing, you can also use the convenience function:
- *
- *   chdir_notify_reparent("description", &my_path);
- *
- * Whenever a chdir event occurs, that will update my_path (if it's relative)
- * to adjust for the new cwd by freeing any existing string and allocating a
- * new one.
- *
- * Registered functions are called in the order in which they were added. Note
- * that there's currently no way to remove a function, so make sure that the
- * data parameter remains valid for the rest of the program.
- *
- * The "name" argument is used only for printing trace output from
- * $GIT_TRACE_SETUP. It may be NULL, but if non-NULL should point to
- * storage which lasts as long as the registration is active.
- */
-typedef void (*chdir_notify_callback)(const char *name,
-				      const char *old_cwd,
-				      const char *new_cwd,
-				      void *data);
-void chdir_notify_register(const char *name, chdir_notify_callback cb, void *data);
-void chdir_notify_reparent(const char *name, char **path);
-
-/*
- *
- * Callers that want to chdir:
- *
- *   chdir_notify(new_path);
- *
- * to switch to the new path and notify any callbacks.
- *
- * Note that you don't need to chdir_notify() if you're just temporarily moving
- * to a directory and back, as long as you don't call any subscribed code in
- * between (but it should be safe to do so if you're unsure).
- */
-int chdir_notify(const char *new_cwd);
-
-/*
- * Reparent a relative path from old_root to new_root. For example:
- *
- *   reparent_relative_path("/a", "/a/b", "b/rel");
- *
- * would return the (newly allocated) string "rel". Note that we may return an
- * absolute path in some cases (e.g., if the resulting path is not inside
- * new_cwd).
- */
-char *reparent_relative_path(const char *old_cwd,
-			     const char *new_cwd,
-			     const char *path);
-
-#endif /* CHDIR_NOTIFY_H */