Function: project--submodule-p

project--submodule-p is a byte-compiled function defined in project.el.gz.

Signature

(project--submodule-p ROOT)

Source Code

;; Defined in /usr/src/emacs/lisp/progmodes/project.el.gz
(defun project--submodule-p (root)
  ;; XXX: We only support Git submodules for now.
  ;;
  ;; For submodules, at least, we expect the users to prefer them to
  ;; be considered part of the parent project.  For those who don't,
  ;; there is the custom var now.
  ;;
  ;; Some users may also set up things equivalent to Git submodules
  ;; using "git worktree" (for example).  However, we expect that most
  ;; of them would prefer to treat those as separate projects anyway.
  (let* ((gitfile (expand-file-name ".git" root)))
    (cond
     ((file-directory-p gitfile)
      nil)
     ((with-temp-buffer
        (insert-file-contents gitfile)
        (goto-char (point-min))
        ;; Kind of a hack to distinguish a submodule from
        ;; other cases of .git files pointing elsewhere.
        (looking-at "gitdir: [./]+/\\.git/modules/"))
      t)
     (t nil))))