2020-04-16 22:38:20 +01:00
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:;exec emacs --no-site-file --no-site-lisp -batch -l "$0" -f main "$(cd "$(dirname "$0")/.." >/dev/null 2>&1 ; pwd -P)" "$@"
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;;; FGBuildTool --- The build tool for FG42
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;;
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;; Copyright (c) 2010-2020 Sameer Rahmani <lxsameer@gnu.org>
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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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;;
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;;; Commentary:
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;; FG42 Build Tool for FBT for short is a tool on top of Emacs to build
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;; FG42. To learn how to use it run it via a shell.
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;;
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;;; Code:
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(defvar FG42-VERSION "3.0.0-snapshot"
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"The version number of the current build of FG42.")
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(defconst fbt-usage "
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Usage:
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fbt [PARAMS] COMMAND [...]
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COMMANDS:
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compile [DIR] - Compiles the given DIR to bytecodes (default: \"core\").
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build - Builds FG42 by compiling the code and installing dependencies.
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clean [DIRS] - Clean up the given list of directories (default: \"code\" \"fbt\").
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fpkg [...] - The CLI insterface to FPKG (FG42 Package manager)
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lint [DIR] - Run the ELisp linter on the files on the given DIR.
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PARAMS:
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:d - Turns on the debug mode.
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:e expr - Run the given `expr' before any operation.
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By default FBT loads the `system.el' file from the root path of `FG42' and looks
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for a system with the name `FG42' to use it as the source for the build operations.
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You can change this behaviour by running following command:
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$ fbt :e '(setq fg42-system 'SOMESYSTEM fg42-system-path \"path/to/a/elisp/file.el\"))' COMMAND...
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This way FBT will load an elisp file at \"path/to/a/elisp/file.el\" and looks for a system
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called `SOMESYSTEM' in it as the source system for the build operations.
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")
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(defun read-args (args)
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"Parse the given ARGS and return a list of params and args.
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The only parameter at the moment is `-e' which basically gets a string
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of elisp and eval it before the commant. The return value is a list
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which the first element is the string to evaluate and the second one
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is the rest of the arguments."
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(if (member ":d" args)
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(setq debug-on-error t)
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(delete ":d" args))
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(if (string= (car args) ":e")
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(list (cadr args) (cddr args))
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(list nil args)))
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(defun todo (dir)
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"Extract the TODO tags from the comments in the given DIR."
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(message "TBD"))
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(defun print-help (command)
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"Print out a usage instructions and print out the invalid msg for COMMAND."
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(when command
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(warn "I don't know about '%s' command.\n" command))
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(message fbt-usage))
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(defun main ()
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"Execute a subcommand by looking into input arguments of the script."
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(message (version))
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(message "\nFG42 Build tool v%s\n\n" FG42-VERSION)
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(let* ((fg42-home (car command-line-args-left))
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(parsed-args (read-args (cdr command-line-args-left)))
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(eval-string (car parsed-args))
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(command (caadr parsed-args))
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(args (cdadr parsed-args)))
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;; FG42 Needs this env var to know where had it been installed
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(setenv "FG42_HOME" fg42-home)
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(setenv "FG42_VERSION" FG42-VERSION)
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(defvar fg42-system-path (concat (file-name-as-directory fg42-home) "system"))
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(defvar fg42-system 'FG42)
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(add-to-list 'load-path (concat (file-name-as-directory fg42-home) "core"))
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(add-to-list 'load-path (concat (file-name-as-directory fg42-home) "fbt"))
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;; Load the default system without user configurations
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(when eval-string
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(eval (car (read-from-string eval-string))))
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(load fg42-system-path)
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(require 'fbt/utils)
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(require 'fbt/compile)
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(require 'fbt/lint)
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(require 'fbt/fpkg)
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(require 'fbt/build)
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(let ((system (symbol-value fg42-system)))
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;; Add the fpkg path to the load path. For the sake of `straight.el'.
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;; This way installed packages will be accessable for build tools as well.
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(fpt-fpkg/initialize-load-path system)
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(cond
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((string= command "fpkg") (funcall #'fbt-fpkg system args))
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((string= command "lint") (funcall #'lint (or (car args) "core")))
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((string= command "compile") (funcall #'fbt-compile/compile (or (car args) "core")))
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((string= command "clean") (funcall #'fbt-build/clean (or args '("core" "fbt"))))
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2020-04-17 11:17:48 +01:00
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((string= command "build") (funcall #'fbt-build/build args))
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2020-04-16 22:38:20 +01:00
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(t (print-help command))))))
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;; Local Variables:
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;; mode: emacs-lisp
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;; End:
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;;; fbt ends here
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