Can't install by following README instructions

[tibbe]

I'm unable to find the haskell-mode package when using package-install. I have this in my init:

;; Packages
(require 'package)
(add-to-list 'package-archives
             '("melpa-stable" . "http://stable.melpa.org/packages/"))

(defvar my-packages '(git-commit-mode markdown-mode protobuf-mode
                      better-defaults magit ido-ubiquitous
                                      yasnippet haskell-mode ghc smex
                                      exec-path-from-shell haskell-mode))
(package-initialize)
(dolist (p my-packages)
  (when (not (package-installed-p p))
    (package-install p)))

A manual package content refresh and package-install doesn't list the package either.

[tibbe]

Could it be because it's already installed?

[tibbe]

That seems to be it. Confusingly package-install claims a package doesn't exist if it's installed.

[geraldus]

Packages that already installed are listed at the bottom, the default order is available packages, installed packages and finally built-in packages. Can you find haskell-mode there?

I've faced some issues with package list, finally I've got it to work properly having following config

(require 'package)
(add-to-list 'package-archives
  '("melpa" . "http://melpa.org/packages/") t)
(when (< emacs-major-version 24)
  (add-to-list 'package-archives '("gnu" . "http://elpa.gnu.org/packages/")))
(package-initialize)

;; custom load-path locations goes here

Note, I'm not using MELPA stable.

[geraldus]

Oh, and I believe you need to invoke package-refresh-contents when checking installed pacakges:

(defun g/packages-installed-p ()
  "Determine if all packages are installed."
  (cl-loop for pkg in g/packages
           when (not (package-installed-p pkg)) do (cl-return nil)
           finally (cl-return t)))

(unless (g/packages-installed-p)
  (message "%s" "Refreshing packages database…")
  (package-refresh-contents)
  (dolist (pkg g/packages)
    (when (not (package-installed-p pkg))
      (package-install pkg))))