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88 lines
3.1 KiB
Scheme
88 lines
3.1 KiB
Scheme
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#! /bin/sh
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# -*-scheme-*-
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build_aux=$(dirname $0)
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srcdir=$build_aux/..
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exec guile --no-auto-compile -L $srcdir -C $srcdir -e main -s "$0" "$@"
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!#
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;;; Copyright © 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This program 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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;;; This program is distributed in the hope that it will be useful, but
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;;; 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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;;;; Commentary:
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;;;
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;;; This script provides an xgettext wrapper to (re)set POT-Creation-Date from
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;;; a Git timestamp. Test doing something like:
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;;;
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;;; build-aux/xgettext.scm --files-from=po/guix/POTFILES.in --default-domain=test
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;;;
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;;;; Code:
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(use-modules (srfi srfi-1)
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(srfi srfi-26)
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(ice-9 curried-definitions)
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(ice-9 match)
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(ice-9 popen)
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(ice-9 rdelim)
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(guix build utils))
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(define ((option? name) option)
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(string-prefix? name option))
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(define (get-option args name)
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(let ((option (find (option? name) args)))
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(and option
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(substring option (string-length name)))))
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(define (pipe-command command)
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(let* ((port (apply open-pipe* OPEN_READ command))
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(output (read-string port)))
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(close-port port)
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output))
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;;;
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;;; Entry point.
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;;;
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(define (main args)
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;; Cater for being run in a container.
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(setenv "LC_ALL" "en_US.UTF-8")
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(setenv "TZ" "UTC0")
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(fluid-set! %default-port-encoding #f)
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(let* ((files-from (get-option args "--files-from="))
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(default-domain (get-option args "--default-domain="))
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(directory (or (get-option args "--directory=") "."))
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(xgettext (or (get-option args "--xgettext=") "xgettext"))
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(xgettext-args (filter (negate (option? "--xgettext=")) args))
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(command (match xgettext-args
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((xgettext.scm args ...)
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`(,xgettext ,@args))))
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(result (apply system* command))
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(status (/ result 256)))
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(if (or (not (zero? status))
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(not files-from))
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(exit status)
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(let* ((text (with-input-from-file files-from read-string))
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(lines (string-split text #\newline))
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(files (filter (negate (cute string-prefix? "#" <>)) lines))
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(files (map (cute string-append directory "/" <>) files))
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(git-command `("git" "log" "--pretty=format:%ci" "-n1" ,@files))
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(timestamp (pipe-command git-command))
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(po-file (string-append default-domain ".po")))
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(when (string-null? timestamp)
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(exit 1))
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(substitute* po-file
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(("(\"POT-Creation-Date: )[^\\]*" all header)
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(string-append header timestamp)))))))
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