* lisp/emacs-lisp/package.el: Update package-alist after install.

(package-unpack, package-unpack-single): Return the pkg-dir.
(package-download-transaction): Use it to update package-alist.

Fixes: debbugs:14632

2 files changed, 24 insertions, 12 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 2d6fdc3367d..76a1a715c91 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,9 @@
+2013-06-18  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+        * emacs-lisp/package.el: Update package-alist after install (bug#14632).
+        (package-unpack, package-unpack-single): Return the pkg-dir.
+        (package-download-transaction): Use it to update package-alist.
+
 2013-06-17  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
         * net/browse-url.el (browse-url-browser-function): Add `eww' as a
diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index d7f4f4cf54f..ae4ebb87ee2 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -640,7 +640,8 @@ untar into a directory named DIR; otherwise, signal an error."
     ;; FIXME: should we delete PKG-DIR if it exists?
     (let* ((default-directory (file-name-as-directory package-user-dir)))
       (package-untar-buffer dirname)
-      (package--make-autoloads-and-compile package pkg-dir))))
+      (package--make-autoloads-and-compile package pkg-dir)
+      pkg-dir)))
 
 (defun package--make-autoloads-and-compile (name pkg-dir)
   "Generate autoloads and do byte-compilation for package named NAME.
@@ -696,7 +697,8 @@ PKG-DIR is the name of the package directory."
          nil
          pkg-file
          nil nil nil 'excl))
-      (package--make-autoloads-and-compile name pkg-dir))))
+      (package--make-autoloads-and-compile name pkg-dir)
+      pkg-dir)))
 
 (defmacro package--with-work-buffer (location file &rest body)
   "Run BODY in a buffer containing the contents of FILE at LOCATION.
@@ -922,16 +924,20 @@ using `package-compute-transaction'."
            (hold (cadr (assq elt package-load-list)))
            (v-string (or (and (stringp hold) hold)
                          (package-version-join (package-desc-version desc))))
-           (kind (package-desc-kind desc)))
-      (cond
-       ((eq kind 'tar)
-        (package-download-tar elt v-string))
-       ((eq kind 'single)
-        (package-download-single elt v-string
-                                 (package-desc-summary desc)
-                                 (package-desc-reqs desc)))
-       (t
-        (error "Unknown package kind: %s" (symbol-name kind))))
+           (kind (package-desc-kind desc))
+           (pkg-dir
+            (cond
+             ((eq kind 'tar)
+              (package-download-tar elt v-string))
+             ((eq kind 'single)
+              (package-download-single elt v-string
+                                       (package-desc-summary desc)
+                                       (package-desc-reqs desc)))
+             (t
+              (error "Unknown package kind: %s" (symbol-name kind))))))
+      ;; Update package-alist.
+      ;; FIXME: Check that the installed package's descriptor matches `desc'!
+      (package-load-descriptor pkg-dir)
       ;; If package A depends on package B, then A may `require' B
       ;; during byte compilation.  So we need to activate B before
       ;; unpacking A.