72 lines
2.4 KiB
Scheme
72 lines
2.4 KiB
Scheme
;;; Gash -- Guile As SHell
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;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This file is part of Gash.
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;;;
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;;; Gash is free software; you can redistribute it and/or modify it
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;;; 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 (at
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;;; your option) any later version.
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;;;
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;;; Gash is distributed in the hope that it will be useful, but WITHOUT ANY
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;;; WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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;;; FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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;;; 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 Gash. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(define-module (gash commands dirname)
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#:use-module (ice-9 getopt-long)
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#:use-module (ice-9 match)
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#:use-module (ice-9 receive)
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#:use-module (ice-9 regex)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-9 gnu)
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#:use-module (srfi srfi-26)
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#:use-module (gash config)
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#:use-module (gash guix-utils)
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#:use-module (gash shell-utils)
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#:export (
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dirname
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))
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(define (dirname . args)
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(let* ((option-spec
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'((help (single-char #\h))
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(version (single-char #\V))
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(zero (single-char #\z))))
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(options (getopt-long args option-spec))
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(help? (option-ref options 'help #f))
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(version? (option-ref options 'version #f))
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(files (option-ref options '() '()))
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(zero? (option-ref options 'zero #f))
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(usage? (and (not help?) (null? files))))
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(cond (version? (format #t "dirname (GASH) ~a\n" %version) (exit 0))
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((or help? usage?) (format (if usage? (current-error-port) #t)
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"\
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Usage: dirname [OPTION] FILE...
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Output each NAME with its last non-slash component and trailing slashes
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removed; if NAME contains no /'s, output '.' (meaning the current directory).
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Options:
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--help display this help and exit
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--version output version information and exit
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-z, --zero end each output line with NUL, not newline
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")
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(exit (if usage? 2 0)))
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(else
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(for-each (lambda (file)
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(display ((@ (guile) dirname) file))
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(if zero? (display #\nul) (newline)))
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files)))))
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(define main dirname)
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