mkdir: New builtin.

* gash/commands/mkdir.scm: New file.
* build-aux/build-guile.sh: Compile it.
* configure: Create script.
* gash/bournish-commands.scm (mkdir-command): New variable.
(%bournish-commands): Add it.

.gitignore

@@ -9,6 +9,7 @@
 /bin/gash
 /bin/grep
 /bin/ls
+/bin/mkdir
 /bin/reboot
 /bin/rm
 /bin/sed

build-aux/build-guile.sh

@@ -56,6 +56,7 @@ ${srcdest}gash/commands/cp.scm
 ${srcdest}gash/commands/find.scm
 ${srcdest}gash/commands/grep.scm
 ${srcdest}gash/commands/ls.scm
+${srcdest}gash/commands/mkdir.scm
 ${srcdest}gash/commands/reboot.scm
 ${srcdest}gash/commands/rm.scm
 ${srcdest}gash/commands/sed.scm
@@ -74,6 +75,7 @@ ${srcdest}bin/find
 ${srcdest}bin/gash
 ${srcdest}bin/grep
 ${srcdest}bin/ls
+${srcdest}bin/mkdir
 ${srcdest}bin/reboot
 ${srcdest}bin/rm
 ${srcdest}bin/sed

configure

@@ -96,6 +96,7 @@ cp
 find
 grep
 ls
+mkdir
 reboot
 rm
 sed

gash/bournish-commands.scm

@@ -77,6 +77,7 @@
 (define find-command (wrap-command "find" find))
 (define grep-command (wrap-command "grep" grep))
 (define ls-command (wrap-command "ls" ls))
+(define mkdir-command (wrap-command "mkdir" mkdir))
 (define reboot-command (wrap-command "reboot" reboot'))
 (define rm-command (wrap-command "rm" rm))
 (define sed-command (wrap-command "sed" sed))
@@ -92,6 +93,7 @@
     ("find"     . ,find-command)
     ("grep"     . ,grep-command)
     ("ls"       . ,ls-command)
+    ("mkdir"    . ,mkdir)
     ("reboot"   . ,reboot-command)
     ("rm"       . ,rm-command)
     ("sed"      . ,sed-command)

gash/commands/mkdir.scm

@@ -0,0 +1,74 @@
+;;; Gash -- Guile As SHell
+;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;;
+;;; This file is part of Gash.
+;;;
+;;; Gash 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.
+;;;
+;;; Gash is distributed in the hope that it will be useful, but WITHOUT ANY
+;;; WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+;;; FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+;;; details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with Gash.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(define-module (gash commands mkdir)
+  #:use-module (ice-9 getopt-long)
+  #:use-module (ice-9 match)
+  #:use-module (ice-9 receive)
+  #:use-module (ice-9 regex)
+
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-9 gnu)
+  #:use-module (srfi srfi-26)
+
+  #:use-module (gash config)
+  #:use-module (gash guix-utils)
+  #:use-module (gash shell-utils)
+
+  #:export (
+            mkdir
+            ))
+
+(define (mkdir . args)
+  (let* ((option-spec
+	  '((help (single-char #\h))
+            (mode (single-char #\m) (value #t))
+            (parents (single-char #\p))
+            (version (single-char #\V))))
+	 (options (getopt-long args option-spec))
+	 (files (option-ref options '() '()))
+         (mode (option-ref options 'mode #f))
+         (parents? (option-ref options 'parents #f))
+	 (help? (option-ref options 'help #f))
+         (version? (option-ref options 'version #f))
+         (files (option-ref options '() '()))
+         (usage? (and (not help?) (null? files))))
+    (cond (version? (format #t "mkdir (GASH) ~a\n" %version) (exit 0))
+          ((or help? usage?) (format (if usage? (current-error-port) #t)
+                                     "\
+Usage: mkdir [OPTION]... DIRECTORY...
+Create the DIRECTORY(ies), if they do not already exist.
+
+Options:
+      --help              display this help and exit
+  -m, --mode=MODE         set file mode (as in chmod), not a=rwx - umask
+  -p, --parents           no error if existing, make parent directories as needed
+      --version           output version information and exit
+
+")
+           (exit (if usage? 2 0)))
+          (else
+           (let ((mode (if mode (umask (chmodifiers->mode (parse-modifiers mode)))
+                           #o755)))
+             (for-each (if parents? mkdir-p (@ (guile) mkdir)) files))))))
+
+(define main mkdir)