107 lines
4.5 KiB
Scheme
107 lines
4.5 KiB
Scheme
;;; Gash --- Guile As SHell
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;;; Copyright © 2016, 2017 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
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;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
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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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;;; The initial bournish.scm was taken from Guix.
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;;; Code:
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(define-module (gash commands ls)
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#:use-module (ice-9 ftw)
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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 (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (gash config)
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#:use-module (gash io)
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#:use-module (gash shell-utils)
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#:export (
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ls
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))
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(cond-expand
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(guile
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;; Support -1, see https://lists.gnu.org/archive/html/bug-guile/2018-07/msg00009.html
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(module-define! (resolve-module '(ice-9 getopt-long)) 'short-opt-rx (make-regexp "^-([a-zA-Z0-9]+)(.*)")))
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(else))
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(define (ls . args)
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(let* ((option-spec
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'((all (single-char #\a))
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(help)
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(long (single-char #\l))
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(one-file-per-line (single-char #\1))
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(version)))
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(options (getopt-long args option-spec))
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(all? (option-ref options 'all #f))
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(help? (option-ref options 'help #f))
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(long? (option-ref options 'long #f))
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(one-file-per-line? (option-ref options 'one-file-per-line #f))
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(version? (option-ref options 'version #f))
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(files (option-ref options '() '())))
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(cond (version? (format #t "ls (GASH) ~a\n" %version))
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(help? (display "Usage: ls [OPTION]... [FILE]...
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Options:
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-a, --all do not ignore entries starting with .
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--help display this help and exit
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-l, --long use a long listing format
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--version display version information and exit
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-1 list one file per line
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"))
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(else
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(let* ((files (if (null? files) (scandir ".")
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(append-map (lambda (file)
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(catch 'system-error
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(lambda ()
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(match (stat:type (lstat file))
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('directory
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;; Like GNU ls, list the contents of
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;; FILE rather than FILE itself.
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(match (scandir file
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(match-lambda
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((or "." "..") #f)
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(_ #t)))
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(#f
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(list file))
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((files ...)
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(map (cut string-append file "/" <>)
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files))))
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(_
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(list file))))
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(lambda args
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(let ((errno (system-error-errno args)))
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(format (current-error-port) "~a: ~a~%"
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file (strerror errno))
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'()))))
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files)))
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(files (if all? files
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(filter (negate (cut string-prefix? "." <>)) files))))
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(cond (long? (for-each (lambda (f) (display-file f) (newline)) files))
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(one-file-per-line? (for-each stdout files))
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(else (display-tabulated files))))))))
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(define main ls)
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