+ (unless quiet (message "Started compiling asynchronously directory %s" directory))))
+
+(defvar package-archive-contents)
+(defvar package-alist)
+(declare-function package-desc-reqs "package.el" (cl-x))
+
+(defun async-bytecomp--get-package-deps (pkg &optional only)
+ ;; Same as `package--get-deps' but parse instead `package-archive-contents'
+ ;; because PKG is not already installed and not present in `package-alist'.
+ ;; However fallback to `package-alist' in case PKG no more present
+ ;; in `package-archive-contents' due to modification to `package-archives'.
+ ;; See issue #58.
+ (let* ((pkg-desc (cadr (or (assq pkg package-archive-contents)
+ (assq pkg package-alist))))
+ (direct-deps (cl-loop for p in (package-desc-reqs pkg-desc)
+ for name = (car p)
+ when (or (assq name package-archive-contents)
+ (assq name package-alist))
+ collect name))
+ (indirect-deps (unless (eq only 'direct)
+ (delete-dups
+ (cl-loop for p in direct-deps append
+ (async-bytecomp--get-package-deps p))))))
+ (cl-case only
+ (direct direct-deps)
+ (separate (list direct-deps indirect-deps))
+ (indirect indirect-deps)
+ (t (delete-dups (append direct-deps indirect-deps))))))
+
+(defun async-bytecomp-get-allowed-pkgs ()
+ (when (and async-bytecomp-allowed-packages
+ (listp async-bytecomp-allowed-packages))
+ (if package-archive-contents
+ (cl-loop for p in async-bytecomp-allowed-packages
+ when (assq p package-archive-contents)
+ append (async-bytecomp--get-package-deps p) into reqs
+ finally return
+ (delete-dups
+ (append async-bytecomp-allowed-packages reqs)))
+ async-bytecomp-allowed-packages)))
+
+(defadvice package--compile (around byte-compile-async)
+ (let ((cur-package (package-desc-name pkg-desc))
+ (pkg-dir (package-desc-dir pkg-desc)))
+ (if (or (equal async-bytecomp-allowed-packages '(all))
+ (memq cur-package (async-bytecomp-get-allowed-pkgs)))
+ (progn
+ (when (eq cur-package 'async)
+ (fmakunbound 'async-byte-recompile-directory))
+ ;; Add to `load-path' the latest version of async and
+ ;; reload it when reinstalling async.
+ (when (string= cur-package "async")
+ (cl-pushnew pkg-dir load-path)
+ (load "async-bytecomp"))
+ ;; `async-byte-recompile-directory' will add directory
+ ;; as needed to `load-path'.
+ (async-byte-recompile-directory (package-desc-dir pkg-desc) t))
+ ad-do-it)))