The ultimate editor for true believers
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:;exec `echo $EMACS` --no-site-file --no-site-lisp --batch -L ./ -l "$0" -f main "$(cd "$(dirname "$0")/." >/dev/null 2>&1 ; pwd -P)" "$@"
;;; Buid --- The builder for FG42 -*- lexical-binding: t; -*-
;; Copyright (c) 2010-2021 Sameer Rahmani & Contributors
;; Author: Sameer Rahmani <>
;; URL:
;; Version: 3.0.0
;; 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
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with thnis program. If not, see <>.
;;; Commentary:
;; Cubes are the building blocks of any `FG42' editor. Each `cube' is a
;; unit which defines different abilities in a deterministic and idempotent
;; way. Cubes are composable and a composition of cubes creates an editor.
;;; Code:
(setq debug-on-error t)
(defconst fg42/CORE_DIR (concat (getenv "HOME") "/.fg42/core"))
(setq user-emacs-directory (concat (getenv "HOME") "/.fg42/emacs.d"))
(add-to-list 'load-path fg42/CORE_DIR)
(require 'fg42/build/core)
(defvar FG42-VERSION "3.0.0-snapshot"
"The version number of the current build of FG42.")
(defconst build/usage "
build.el [PARAMS] COMMAND [...]
clean [DIRS] - Clean up the given list of directories (default: \"code\" \"fbt\").
docs - Build the documents and convert them to HTML
:d - Turns on the debug mode.
:e expr - Run the given `expr' before any operation.
(defun print-help (command)
"Print out a usage instructions and print out the invalid msg for COMMAND."
(when command
(warn "I don't know about '%s' command.\n" command))
(message build/usage))
(defmacro do-command (&rest body)
"Run the BODY after loading FG42."
(require 'fg42)
(defun main ()
"The entry point to the build script."
(message (version))
(message "\nFG42 Build tool v%s\n\n" FG42-VERSION)
;; UTF-8 as default encoding
(prefer-coding-system 'utf-8)
(set-default-coding-systems 'utf-8)
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
(setq project-root (car command-line-args-left))
(let* ((fg42-home (car command-line-args-left))
(build-dir (from-root "/build/"))
(parsed-args (read-args (cdr command-line-args-left)))
(eval-string (car parsed-args))
(command (caadr parsed-args))
(args (cdadr parsed-args)))
;; Evaluate the expression provided by :e
(when eval-string
(eval (car (read-from-string eval-string))))
((string= command "docs")
(require 'fpkg)
(fpkg/use dash)
(require 'fg42/build/docs)
(fg42/build-docs build-dir)))
((string= command "compile")
(native-compile-async fg42/CORE_DIR 'recursively)
(native-compile-async "~/.fg42.v3.el")
(print "Compiling FG42 files ...")
(while (or comp-files-queue
(> (comp-async-runnings) 0))
(print ".")
(sleep-for 1))
(message "Done")))
(t (print-help command)))))
(provide 'build)
;;; build.el ends here