#
# Copyright 2004 Jörg Mayer (see AUTHORS file)
#
-# $Id: make-version.pl,v 1.3 2004/01/18 01:41:13 obiot Exp $
+# $Id$
#
# Ethereal - Network traffic analyzer
# By Gerald Combs <gerald@ethereal.com>
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-# usage: ./make-version.pl
+# usage: ./make-version.pl [-p] [--package-version]
+#
+# If "version.conf" is present, it is parsed for configuration values.
+# Possible values are:
+#
+# enable - Enable or disable versioning. Zero (0) disables, nonzero
+# enables.
+# format - A strftime() formatted string to use as a template for
+# the version string. The sequence "%#" will substitute
+# the SVN revision number.
+# pkg_format - Like "format", but used for the package version.
+#
+# If run with the "-p" or "--package-version" argument, the
+# AM_INIT_AUTOMAKE macro in configure.in and the VERSION macro in
+# config.nmake will have the pkg_format template appended to the
+# version number. svnversion.h will _not_ be generated if either
+# argument is present.
+#
+# Default configuration:
+#
+# enable: 1
+# format: SVN %Y%m%d%H%M%S
+# pkg_format: -SVN-%#
+# am_init: 0
-use strict;
+# XXX - We're pretty dumb about the "%#" substitution, and about having
+# spaces in the package format.
-my ($d1,$d2,$d3,$date,$drest);
-my ($wdayascii, $monthascii, $day, $time, $year);
+use strict;
-my %asctonum = ( "Jan" => "01", "Feb" => "02", "Mar" => "03", "Apr" => "04",
- "May" => "05", "Jun" => "06", "Jul" => "07", "Aug" => "08",
- "Sep" => "09", "Oct" => "10", "Nov" => "11", "Dec" => "12" );
+use Time::Local;
+use POSIX qw(strftime);
+use Getopt::Long;
+
+my $version_file = 'svnversion.h';
+my $version_string = "";
+my $package_string = "";
+my $vconf_file = 'version.conf';
+my $last = 0;
+my $revision = 0;
+my $pkg_version = 0;
+my %version_pref = (
+ "enable" => 1,
+ "format" => "SVN %Y%m%d%H%M%S",
+ "pkg_format" => "-SVN-%#",
+ );
+my $srcdir = ".";
+
+
+# Run "svn info". Parse out the most recent modification time and the
+# revision number.
+sub read_svn_info {
+ my $line;
+ my $version_format = $version_pref{"format"};
+ my $package_format = $version_pref{"pkg_format"};
+ my $in_entries = 0;
+ my $svn_name;
+
+ if (! open (ENTRIES, "< $srcdir/.svn/entries")) {
+ print ("Unable to get SVN info.\n");
+ return;
+ }
-my $current;
-my $last = "";
+ # The entries schema is flat, so we can use regexes to parse its contents.
+ while ($line = <ENTRIES>) {
+ if ($line =~ /<entry$/ || $line =~ /<entry\s/) {
+ $in_entries = 1;
+ $svn_name = "";
+ }
+ if ($in_entries) {
+ if ($line =~ /name="(.*)"/) { $svn_name = $1; }
+ if ($line =~ /committed-date="(\d{4})-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)/) {
+ $last = timegm($6, $5, $4, $3, $2 - 1, $1);
+ }
+ if ($line =~ /revision="(\d+)"/) { $revision = $1; }
+ }
+ if ($line =~ /\/>/) {
+ if (($svn_name eq "" || $svn_name eq "svn:this_dir") &&
+ $last && $revision) {
+ $in_entries = 0;
+ $version_format =~ s/%#/$revision/;
+ $version_string = strftime($version_format, gmtime($last));
+
+ $package_format =~ s/%#/$revision/;
+ $package_string = strftime($package_format, gmtime($last));
+
+ last;
+ }
+ }
+ }
+ close ENTRIES;
+}
-sub findentries {
- my $currentdir = shift;
+# Read configure.in, then write it back out with an updated
+# "AM_INIT_AUTOMAKE" line.
+sub update_configure_in
+{
+ my $line;
+ my $contents = "";
+ my $version = "";
+
+ return if ($package_string eq "");
+
+ open(CFGIN, "< configure.in") || die "Can't read configure.in!";
+ while ($line = <CFGIN>) {
+ if ($line =~ /^AM_INIT_AUTOMAKE\(ethereal, (\d+)\.(\d+).(\d+)/) {
+ $line = "AM_INIT_AUTOMAKE\(ethereal, $1.$2.$3$package_string)\n";
+ }
+ $contents .= $line
+ }
+
+ open(CFGIN, "> configure.in") || die "Can't write configure.in!";
+ print(CFGIN $contents);
+ close(CFGIN);
+ print "configure.in has been updated.\n";
+}
- opendir(DIR, "$currentdir") || print STDERR "Opendir $currentdir failed ($!)\n" && next;
- grep { (-d "$currentdir/$_" && $_ !~ /^\.(|.)$/ && &findentries("$currentdir/$_")) ||
- (-f "$currentdir/$_" && $_ =~ /^Entries$/ && &lastentry("$currentdir/$_")) } readdir(DIR);
- closedir DIR;
+# Read config.nmake, then write it back out with an updated
+# "VERSION" line.
+sub update_config_nmake
+{
+ my $line;
+ my $contents = "";
+ my $version = "";
+
+ return if ($package_string eq "");
+
+ open(CFGIN, "< config.nmake") || die "Can't read config.nmake!";
+ while ($line = <CFGIN>) {
+ if ($line =~ /^VERSION=(\d+)\.(\d+).(\d+)/) {
+ $line = "VERSION=$1.$2.$3$package_string\n";
+ }
+ $contents .= $line
+ }
+
+ open(CFGIN, "> config.nmake") || die "Can't write config.nmake!";
+ print(CFGIN $contents);
+ close(CFGIN);
+ print "config.nmake has been updated.\n";
}
-sub lastentry {
- my $file = shift;
- open(FILE, "<$file") || print STDERR "Open $file for reading failed ($!)\n" && return 1;
- while (<FILE>) {
- chomp;
- # Regular lines look like this: /ethereal_be.py/1.6/Fri Aug 2 22:55:19 2002//
- next if (/^D/);
- ($d1,$d2,$d2,$date,$drest) = split(/\//, $_, 5);
- next if ($date !~ /\d:\d\d:\d\d/);
- ($wdayascii, $monthascii, $day, $time, $year) = split(/\s+/, $date);
- $day = substr("0".$day, -2, 2);
- $time =~ s/://g;
- $current = "$year$asctonum{$monthascii}$day$time";
- if ($current gt $last) {
- $last = $current;
+
+# Print the SVN version to $version_file.
+# Don't change the file if it is not needed.
+sub print_svn_version
+{
+ my $svn_version;
+ my $needs_update = 1;
+
+ if ($pkg_version) { return; }
+
+ if ($last && $revision) {
+ $svn_version = "#define SVNVERSION \"" .
+ $version_string . "\"\n";
+ } else {
+ $svn_version = "/* #define SVNVERSION \"\" */\n";
+ }
+ if (open(OLDVER, "<$version_file")) {
+ if (<OLDVER> eq $svn_version) {
+ print "$version_file is up-to-date.\n";
+ $needs_update = 0;
}
+ close OLDVER;
+ }
+
+ if ($needs_update == 1) {
+ # print "Updating $version_file so it contains:\n$svn_version";
+ open(VER, ">$version_file") || die ("Cannot write to $version_file ($!)\n");
+ print VER "$svn_version";
+ close VER;
+ print "$version_file has been updated.\n";
}
- close FILE;
- return 1;
}
-&findentries(".");
+# Read values from the configuration file, if it exists.
+sub get_config {
+ my $arg;
-if ($last eq "" && -f "cvsversion") {
- $last = `cat cvsversion`;
-}
-if ( $last ne "" ) {
- $last = "#define CVSVERSION \"$last\"\n";
-} else {
- $last = "/* #define CVSVERSION \"\" */\n";
-}
+ # Get our command-line args
+ GetOptions("package-version", \$pkg_version);
-my $needsupdate=0;
+ if ($#ARGV >= 0) {
+ $srcdir = $ARGV[0]
+ }
-if (! open(OLDVER, "<cvsversion.h")) {
- $needsupdate = 1;
-} else {
- if (<OLDVER> ne $last) {
- $needsupdate = 1;
+
+ if (! open(FILE, "<$vconf_file")) {
+ print STDERR "Version configuration file $vconf_file not "
+ . "found. Using defaults.\n";
+ return 1;
}
- close OLDVER;
-}
-if ($needsupdate == 1) {
- open(VER, ">cvsversion.h") || die ("Cannot write to cvsversion.h ($!)\n");
- print VER "$last";
- close VER;
+ while (<FILE>) {
+ chomp;
+ next if (/^#/);
+ next unless (/^(\w+):\s+(\S.*)/);
+ $version_pref{$1} = $2;
+ }
+ close FILE;
+ return 1;
}
-__END__
+##
+## Start of code
+##
+
+&get_config();
+
+if (-d "./.svn") {
+ print "This is a build from SVN (or a SVN snapshot).\n";
+ &read_svn_info(".");
+ if ($pkg_version) {
+ print "Generating package version. Ignoring $version_file\n";
+ &update_configure_in;
+ &update_config_nmake;
+ } elsif ($version_pref{"enable"} == 0) {
+ print "Version tag disabled in $vconf_file.\n";
+ $last = 0;
+ $revision = 0;
+ } else {
+ print "SVN version tag will be computed.\n";
+ }
+} else {
+ print "This is not a SVN build.\n";
+}
+&print_svn_version;
+__END__