88 lines
3.0 KiB
EmacsLisp
88 lines
3.0 KiB
EmacsLisp
;;; dependencies --- System library of FG42 -*- lexical-binding: t; -*-
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;;
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;; Copyright (c) 2010-2021 Sameer Rahmani & Contributors
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;;
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;; Author: Sameer Rahmani <lxsameer@gnu.org>
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;; URL: https://gitlab.com/FG42/FG42
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;; Version: 3.0.0
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;;
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;
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;;; Commentary:
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;; `System' is just a state monad which holds the state of the editor.
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;; Each system has to have a `start' function to start the setup process.
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;;
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;;; Code:
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(require 'fpkg)
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(require 'fg42/system/core)
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(defun fg42/system-merge-dependencies (system cube-name deps)
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"Retun an updated SYSTEM with the given dependencies DEPS for CUBE-NAME."
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(if deps
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;; TODO: Validate the deps here
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(fg42/system-cons-to system :dependencies (cons cube-name deps))
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system))
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(defun fg42/system-dependencies (system)
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"Return a flat list of dependencies of the SYSTEM."
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(seq-reduce
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(lambda (lst pair)
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(append lst (cdr pair)))
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(fg42/system-get system :dependencies)
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'()))
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(defun fg42/system-install-dependency (dep)
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"Install the given dependency list DEP.
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dep is in (cube-name (...dependencies...)) format."
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(message "Installing dependencies of '%s' cube..." (car dep))
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(mapcar #'fpkg/install-package (cdr dep)))
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(defun fg42/system-install-dependencies (system)
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"Install the dependencies in the SYSTEM."
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(when (not (fg42/system-dependencies-installed? system))
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(fg42/system-refresh-package-index system)
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(mapc #'fg42/system-install-dependency
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(fg42/system-get system :dependencies)))
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system)
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(defun fg42/system-refresh-package-index (system)
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"Refresh the package index of the SYSTEM is dependencies were missing."
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(unless (fg42/system-dependencies-installed? system)
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;; check for new packages (package versions)
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(message "Refreshing package database...")
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;; TODO: call different function to update every source
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;; in the system. Something similar to what we do
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;; with package-install on FPKG
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(fpkg/initialize system)
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(package-refresh-contents)))
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(defun fg42/system-dependencies-installed? (system)
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"Return t if all the dependencies of the given SYSTEM are installed."
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(let ((pkgs (fg42/system-dependencies system)))
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(seq-reduce
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(lambda (all-installed? pkg)
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(and all-installed?
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(fpkg/package-installed? pkg)))
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pkgs
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t)))
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(provide 'fg42/system/dependencies)
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;;; dependencies.el ends here
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