CONFIG: reproducible MAN_DATE for openfoam-selector (fixes #2)

- allows identical build results later
  (see https://reproducible-builds.org/)

- define the release date in the RELEASE file,
  and also include the version there as well.

openfoam-selector/RELEASE

+# Version and release-date key/value information (no spaces!!)
+#
+version=1.0.6
+date=2020-08-10
+#----

openfoam-selector/VERSION

-1.0.5

openfoam-selector/configure

 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for openfoam-selector 1.0.5.
+# Generated by GNU Autoconf 2.69 for openfoam-selector 1.0.6.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -576,8 +576,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='openfoam-selector'
 PACKAGE_TARNAME='openfoam-selector'
-PACKAGE_VERSION='1.0.5'
-PACKAGE_STRING='openfoam-selector 1.0.5'
+PACKAGE_VERSION='1.0.6'
+PACKAGE_STRING='openfoam-selector 1.0.6'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1204,7 +1204,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures openfoam-selector 1.0.5 to adapt to many kinds of systems.
+\`configure' configures openfoam-selector 1.0.6 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1271,7 +1271,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of openfoam-selector 1.0.5:";;
+     short | recursive ) echo "Configuration of openfoam-selector 1.0.6:";;
    esac
   cat <<\_ACEOF
 
@@ -1353,7 +1353,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-openfoam-selector configure 1.0.5
+openfoam-selector configure 1.0.6
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1370,7 +1370,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by openfoam-selector $as_me 1.0.5, which was
+It was created by openfoam-selector $as_me 1.0.6, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2233,7 +2233,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='openfoam-selector'
- VERSION='1.0.5'
+ VERSION='1.0.6'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2400,7 +2400,7 @@ OPENFOAM_SELECTOR_HOME_FILE=".openfoam-selector"
 prefix=$prefix_save
 
 # Information for the man page
-MAN_DATE=`date "+%Y-%m-%d"`
+MAN_DATE=$(sed -ne s/^date=//p RELEASE)
 
 
 # Party on
@@ -2959,7 +2959,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by openfoam-selector $as_me 1.0.5, which was
+This file was extended by openfoam-selector $as_me 1.0.6, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -3016,7 +3016,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-openfoam-selector config.status 1.0.5
+openfoam-selector config.status 1.0.6
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

openfoam-selector/configure.ac

 # -*- shell-script -*-
 # Copyright (c) 2007 Cisco Systems, Inc.  All rights reserved.
 # Copyright (C) 2018-2020 OpenCFD Ltd.
+#
+# Notes
+#  - the RELEASE file contains both version and date information
+# ------------------------------------------------------------------------
 
 # Startup
 AC_INIT([openfoam-selector],
-        [m4_normalize(esyscmd([cat VERSION]))],
+        [m4_normalize(esyscmd([sed -ne s/^version=//p RELEASE]))],
         [], [openfoam-selector])
 AM_INIT_AUTOMAKE([foreign dist-bzip2])
 
@@ -67,13 +71,12 @@ AC_SUBST(OPENFOAM_SELECTOR_HOME_FILE)
 prefix=$prefix_save
 
 # Information for the man page
-MAN_DATE=`date "+%Y-%m-%d"`
+MAN_DATE=$(sed -ne s/^date=//p RELEASE)
 AC_SUBST(MAN_DATE)
 
 # Party on
 AC_CONFIG_FILES([
     Makefile
-
     openfoam-selector
     openfoam-selector.sh
     openfoam-selector.csh

openfoam-selector/make_deb_tar

@@ -21,7 +21,8 @@
 cd "${0%/*}" || exit
 
 package="openfoam-selector"
-version="$(cat VERSION)"
+version="$(sed -ne s/^version=//p RELEASE)"
+# date="$(sed -ne s/^date=//p RELEASE)"
 
 [ -n "$version" ] || {
     echo "No version info" 1>&2

openfoam-selector/make_tgz

@@ -20,7 +20,8 @@
 cd "${0%/*}" || exit
 
 package="openfoam-selector"
-version="$(cat VERSION)"
+version="$(sed -ne s/^version=//p RELEASE)"
+# date="$(sed -ne s/^date=//p RELEASE)"
 
 [ -n "$version" ] || {
     echo "No version info" 1>&2