Add a simplified version of fpkg

core/fpkg.el

@@ -0,0 +1,87 @@
+;;; fpkg --- a simple package manager for FG42                     -*- lexical-binding: t; -*-
+;;
+;; Copyright (C) 2010-2020  Sameer Rahmani <lxsameer@gnu.org>
+;;
+;; Author: Sameer Rahmani <lxsameer@gnu.org>
+;; Keywords: lisp fg42 IDE package manager
+;; Version: 1.0.0
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+;;
+;;; Commentary:
+;;
+;; Simple package manager for FG42
+;;
+;;; Code:
+(require 'seq)
+(require 'cl-lib)
+(require 'package)
+
+
+(defun fpkg/->package-el-version (version)
+  "Convert the given FG42 package VERSION to package.el compatible version."
+  (cond
+   ((null version) '(0))
+   ((eq version :latest) '(0))
+   (t version)))
+
+
+(defun fpkg/package-installed-via-package-el (pkg)
+  "Return non-nil if the given package PKG is installed."
+  (package-installed-p (plist-get pkg :name)
+                       (fpkg/->package-el-version (plist-get pkg :version))))
+
+
+
+(defun fpkg/package-installed? (pkg)
+  "Return non-nil if the given package PKG is installed."
+  (let* ((source (or (plist-get pkg :source) "package-el"))
+         (func-name (concat "fpkg/package-installed-via-" source))
+         (f (symbol-function (intern func-name))))
+    (funcall f pkg)))
+
+
+(defun fpkg/install--package-via-package-el (pkg)
+  "Install the given package PKG via package.el."
+  ;; TODO: Install packages using the package-desc to fetch
+  ;;       packages with version
+  ;; (let ((package (package-desc-create :name (plist-get pkg :name)
+  ;;                                     :version (fpkg/->package-el-version (plist-get pkg :version))
+  ;;                                     :kind 'tar)))
+  ;;   (package-install package)))
+  (package-install (plist-get pkg :name)))
+
+
+(defun fpkg/install-package (pkg)
+  "Intall the package PKG via its propreate source."
+  (let* ((source (or (plist-get pkg :source) "package-el"))
+         (func-name (concat "fpkg/install--package-via-" source))
+         (install-func (symbol-function (intern func-name))))
+    (funcall install-func pkg)))
+
+
+(defun fpkg/initialize (system)
+  "Initilize the `package.el' for the given SYSTEM."
+  (message "KKKKKKKKKKKKKKKKKKKKKKKKKKK")
+  ;; TODO: Grap any extra repo from the system (sympol-plist)
+  (add-to-list 'package-archives
+               '("melpa" . "http://melpa.org/packages/") t)
+
+    ;; Initialize package.el
+  (package-initialize))
+
+
+
+(provide 'fpkg)
+;;; fpkg.el ends here