;;; core/install-vc.el --- Install packages directly from the version control  -*- lexical-binding: t; -*-

;;; Commentary:
;;
;; Command use to install packages directly from the version control
;;
;;   $ eask install-vc [specs..]
;;
;;
;;  Positionals:
;;
;;    [specs..]     specs to install as packages; it will install through the
;;                  function `package-vc-install'
;;

;;; Code:

(let ((dir (file-name-directory (nth 1 (member "-scriptload" command-line-args)))))
  (load (expand-file-name "_prepare.el"
                          (locate-dominating-file dir "_prepare.el"))
        nil t))

(eask-load "core/install")

(defun eask-install-vc--guess-name (file)
  "Guess the package name of the install FILE."
  (file-name-sans-extension (file-name-nondirectory (directory-file-name file))))

(defun eask-install-vc--split-sepcs (specs)
  "Split the SPECS and return a list of specification."
  (let ((new-specs)
        (current-spec))
    (dolist (spec specs)
      ;; Detect new specification.
      (cond ((ffap-url-p spec)
             (push (reverse current-spec) new-specs)
             ;; We're using the push, so the order is reversed.
             (setq current-spec (list spec (eask-install-vc--guess-name spec))))
            (t
             (push spec current-spec))))
    ;; Push thes rest of the specification.
    (push (reverse current-spec) new-specs)
    (cl-remove-if #'null (reverse new-specs))))

(defun eask-install-vc--packages (specs)
  "The vc install packages with SPECS."
  (let* ((deps (eask-install-vc--split-sepcs specs))
         (names (mapcar #'car deps))
         (len (length deps))
         (s (eask--sinr len "" "s"))
         (not-installed (eask-install--not-installed names))
         (installed (length not-installed))
         (skipped (- len installed)))
    (eask-log "Installing %s specified vc package%s..." len s)
    (eask-msg "")
    (eask--package-mapc (lambda (dep &rest _)
                          (let ((name (car dep))
                                (spec (cdr dep)))
                            (eask-package-vc-install name spec)))
                        deps)
    (eask-msg "")
    (eask-info "(Total of %s vc package%s installed, %s skipped)"
               installed s skipped)))

(eask-start
  (eask-command-check "29.1")

  (eask-pkg-init)
  (if-let* ((specs (eask-args)))
      ;; If package [specs..] are specified, we try to install it
      (eask-install-vc--packages specs)
    ;; Otherwise, report error.
    (eask-info "(No vc packages have been installed)")
    (eask-help "core/install-vc")))

;;; core/install-vc.el ends here