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java: Create reproducible .jar files if the 'jar' utility supports it.
Suggested by Bernhard M. Wiedemann <bwiedemann@suse.de> in <https://lists.gnu.org/archive/html/bug-gettext/2024-07/msg00020.html>. * build-aux/jar-cf: New file. * Makefile.am (EXTRA_DIST): Add it. * gettext-runtime/intl-java/Makefile.am (libintl.jar): Use jar-cf. * gettext-tools/src/Makefile.am (gettext.jar): Likewise.
This commit is contained in:
Bruno Haible
parent
364f058231
commit
06bb3d6f86
@ -54,7 +54,8 @@ EXTRA_DIST = \
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$(changelog_etc) DEPENDENCIES PACKAGING HACKING JOIN-GNU ChangeLog.0 \
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autogen.sh \
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check-copyright-headers \
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build-aux/ac-help.sed build-aux/git-version-gen build-aux/texi2html \
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build-aux/ac-help.sed build-aux/git-version-gen build-aux/jar-cf \
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build-aux/texi2html \
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m4/fixautomake.m4 m4/woe32-dll.m4 \
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m4/libtool.m4
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112
build-aux/jar-cf
Executable file
112
build-aux/jar-cf
Executable file
@ -0,0 +1,112 @@
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#!/bin/sh
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# Creating a Java archive (.jar).
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# Copyright (C) 2024 Free Software Foundation, Inc.
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#
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# This file is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published
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# by the Free Software Foundation, either version 3 of the License,
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# or (at your option) any later version.
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#
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# This file 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
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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 <https://www.gnu.org/licenses/>.
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# Written by Bruno Haible <bruno@clisp.org>, 2024.
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# func_usage
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# outputs to stdout the --help usage message.
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func_usage ()
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{
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echo "\
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Usage: jar-cf [OPTION]... JAR_PROGRAM TOP_SRCDIR DESTINATION.jar ELEMENT...
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Invokes the JAR_PROGRAM, to create DESTINATION.jar with the ELEMENTs as
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contents.
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Options:
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--help print this help and exit
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--version print version information and exit
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Send patches and bug reports to <bug-gettext@gnu.org>."
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}
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# func_version
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# outputs to stdout the --version message.
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func_version ()
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{
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echo "jar-cf (GNU gettext)"
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echo "Copyright (C) 2024 Free Software Foundation, Inc.
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License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law."
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echo
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printf 'Written by %s.\n' "Bruno Haible"
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}
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# func_fatal_error message
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# outputs to stderr a fatal error message, and terminates the program.
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func_fatal_error ()
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{
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echo "jar-cf: *** $1" 1>&2
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echo "jar-cf: *** Stop." 1>&2
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exit 1
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}
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# Outputs a command and runs it.
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func_verbose ()
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{
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# Make it easy to copy&paste the printed command into a shell in most cases,
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# by escaping '\\', '"', and '$'. This is not perfect, just good enough.
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echo "$@" | sed -e 's/\([\\"$]\)/\\\1/g'
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"$@"
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}
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# Command-line option processing.
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while test $# -gt 0; do
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case "$1" in
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--help | --hel | --he | --h )
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func_usage
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exit 0 ;;
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--version | --versio | --versi | --vers | --ver | --ve | --v )
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func_version
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exit 0 ;;
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-- ) # Stop option processing
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shift; break ;;
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-* )
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func_fatal_error "unrecognized option: $1"
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;;
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* )
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break ;;
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esac
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done
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if test $# -lt 2; then
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func_fatal_error "too few arguments"
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fi
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jar_program="$1"
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top_srcdir="$2"
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shift
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shift
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if $jar_program --help 2>&1 | grep '\-\-date=' >/dev/null; then
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# The JAR_PROGRAM supports the --date option. Its effect is to set the given
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# date as time stamp on all the ELEMENTs and also the META-INF/MANIFEST.MF.
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# Use it, for reproducibility (cf. <https://reproducible-builds.org/>).
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if test -d "$top_srcdir/.git"; then
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# We are in a git checkout. Use the date of the latest commit.
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date=`git log -n 1 --date=iso --format=fuller | sed -n -e 's/^CommitDate: //p' | sed -e 's/ /T/' -e 's/ \(...\)\(..\)$/\1:\2/'`
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else
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# We are building from a tarball.
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# Use the date of the first entry of the ChangeLog file.
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date=`sed -n -e 's/^\([0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]\).*/\1/p' -e 1q "$top_srcdir/ChangeLog"`'T00:00:00+00:00'
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fi
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func_verbose $jar_program --date="$date" -c -f "$@"
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else
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func_verbose $jar_program cf "$@"
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fi
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@ -1,5 +1,5 @@
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## Makefile for the gettext-runtime/intl-java subdirectory of GNU gettext
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## Copyright (C) 2001-2003, 2006-2007, 2013 Free Software Foundation, Inc.
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## Copyright (C) 2001-2024 Free Software Foundation, Inc.
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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@ -45,7 +45,7 @@ gnu/gettext/GettextResource.class: $(srcdir)/gnu/gettext/GettextResource.java
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$(JAVACOMP) -d . $(srcdir)/gnu/gettext/GettextResource.java
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libintl.jar: gnu/gettext/GettextResource.class
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$(JAR) cf $@ gnu/gettext/GettextResource*.class
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$(top_srcdir)/../build-aux/jar-cf '$(JAR)' '$(top_srcdir)/..' $@ gnu/gettext/GettextResource*.class
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EXTRA_DIST += gnu/gettext/GettextResource.java
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@ -1,5 +1,5 @@
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## Makefile for the gettext-tools/src subdirectory of GNU gettext
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## Copyright (C) 1995-1998, 2000-2023 Free Software Foundation, Inc.
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## Copyright (C) 1995-2024 Free Software Foundation, Inc.
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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@ -655,7 +655,7 @@ gnu/gettext/GetURL.class: $(srcdir)/gnu/gettext/GetURL.java
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$(JAVACOMP) -d . $(srcdir)/gnu/gettext/GetURL.java
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gettext.jar: gnu/gettext/DumpResource.class gnu/gettext/GetURL.class
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$(JAR) cf $@ gnu/gettext/DumpResource*.class gnu/gettext/GetURL*.class
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$(top_srcdir)/../build-aux/jar-cf '$(JAR)' '$(top_srcdir)/..' $@ gnu/gettext/DumpResource*.class gnu/gettext/GetURL*.class
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EXTRA_DIST += gnu/gettext/DumpResource.java gnu/gettext/GetURL.java
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