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100 lines
2.7 KiB
EmacsLisp
100 lines
2.7 KiB
EmacsLisp
;;; doom-modeline-env.el --- A environment parser for doom-modeline -*- lexical-binding: t -*-
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;; Copyright (C) 2019 Justin Barclay, Vincent Zhang
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;; This file is not part of GNU Emacs.
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;;
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 2, 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 GNU
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;; 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; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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;; Floor, Boston, MA 02110-1301, USA.
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;;
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;;; Commentary:
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;;
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;; Parse programming environment version.
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;;
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;;; Code:
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(require 'subr-x)
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(defun doom-modeline-env--ruby (line)
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"Parse Ruby version from LINE."
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(car (split-string
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(cadr
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(split-string line))
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"p")))
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(defun doom-modeline-env--elixir (line)
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"Parse Elixir version from LINE."
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(cadr
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(split-string line)))
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(defun doom-modeline-env--rustc (line)
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"Parse Rust version from LINE."
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(car
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(split-string
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(cadr
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(split-string line))
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"-")))
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(defun doom-modeline-env--go (line)
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"Parse Go version from LINE."
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(cadr
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(split-string
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(cadr
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(cdr
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(split-string
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line)))
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"go")))
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(defun doom-modeline-env--perl (line)
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"Parse Perl version from LINE."
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(cadr
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(split-string
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(car
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(split-string
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(cadr
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(split-string line "("))
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")"))
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"v")))
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(defun doom-modeline-env--python (line)
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"Parse Python version from LINE."
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(cadr
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(split-string line)))
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(defun doom-modeline-env--get (prog args callback)
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"Start a sub process using PROG and apply the ARGS to the sub process.
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Once it recieves information from STDOUT, it closes off the subprocess and
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passes on the information into the CALLBACK.
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Example:
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(doom-modeline-env--get
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\"ruby\"
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'(\"--version\")
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(lambda (line)
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(message (doom-modeline-parser--ruby line)))"
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(let ((proc (apply 'start-process
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(append ;; Flaten process-args into a single list so we can handle variadic length args
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(list "doom-modeline-env" nil prog)
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args)))
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(parser callback))
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(set-process-filter proc
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(lambda (_proc line)
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(ignore-errors
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(funcall parser line))))))
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(provide 'doom-modeline-env)
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;;; doom-modeline-env.el ends here
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