#
# Copyright 2004 Jörg Mayer (see AUTHORS file)
#
-# $Id: make-version.pl,v 1.4 2004/01/18 05:17:23 jmayer Exp $
+# $Id: make-version.pl,v 1.7 2004/03/04 16:19:40 jmayer Exp $
#
# Ethereal - Network traffic analyzer
# By Gerald Combs <gerald@ethereal.com>
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# usage: ./make-version.pl
+#
+# 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.
+#
+# Default configuration:
+#
+# enable: 1
+# format: CVS %Y%m%d%H%M%S
use strict;
-my ($d1,$d2,$d3,$date,$drest);
-my ($wdayascii, $monthascii, $day, $time, $year);
-
-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" );
-
-my $current;
-my $last = "";
-
-
-# Recursively find all files named Entries and call lastentry on them.
-# Args: Startdirectory
-sub findentries {
- my $currentdir = shift;
-
- opendir(DIR, "$currentdir") || print STDERR "Opendir $currentdir failed ($!)\n" && next;
- grep { (-d "$currentdir/$_" && $_ !~ /^\.(|.)$/ && &findentries("$currentdir/$_")) ||
- (-f "$currentdir/$_" && $_ =~ /^Entries$/ && &lastentry("$currentdir/$_")) } readdir(DIR);
+use Time::Local;
+use POSIX qw(strftime);
+
+my $version_file = 'cvsversion.h';
+my $vconf_file = 'version.conf';
+my %monthnum = ( "Jan" => "0", "Feb" => "1", "Mar" => "2", "Apr" => "3",
+ "May" => "4", "Jun" => "5", "Jul" => "6", "Aug" => "7",
+ "Sep" => "8", "Oct" => "9", "Nov" => "10", "Dec" => "11" );
+my $last = 0;
+my $last_file = undef;
+my %version_pref = ("enable" => 1, "format" => "CVS %Y%m%d%H%M%S");
+
+
+# Recursively find all CVS Entries files starting from the given directory,
+# and compute the modification time of the most recently modified Entries file.
+sub find_last_CVS_Entries {
+ my $dir = shift;
+ my $d;
+
+ opendir(DIR, "$dir") || print STDERR "Can't open directory $dir ($!)\n" && next;
+ foreach $d (readdir(DIR)) {
+ if (-d "$dir/$d" && $d !~ /^\.(|.)$/) {
+ if ($d =~ /^CVS$/) {
+ if (-f "$dir/CVS/Entries") {
+ &lastentry("$dir/CVS/Entries");
+ }
+ } else { # Recurse in directory
+ &find_last_CVS_Entries("$dir/$d");
+ }
+ }
+ }
closedir DIR;
}
+
# Check all entries in $file. In case they are newer, update $last accordingly
# Args: Entries file
sub lastentry {
+ my $date;
+ my ($wdayascii, $monthascii, $day, $time, $year);
my $file = shift;
+ my $current;
open(FILE, "<$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) {
+ $date = (split(/\//, $_, 5))[3];
+ # Month Day Hour Minute Second Year
+ next if ($date !~ /\w{3} (\w{3}) (.\d) (\d\d):(\d\d):(\d\d) (\d{4})/);
+ $current = timegm($5, $4, $3, $2, $monthnum{$1}, $6);
+
+ if ($current > $last) {
$last = $current;
}
}
return 1;
}
-&findentries(".");
-# In case that there are no Entries files but the sources are based on a cvs snapshot,
-# it is possible to add a file cvsversion to the toplevel directory containing the
-# cvs version string YYYYMMDDhhmmss
-if ($last eq "" && -f "cvsversion") {
- $last = `cat cvsversion`;
-}
-if ( $last ne "" ) {
- $last = "#define CVSVERSION \"$last\"\n";
-} else {
- $last = "/* #define CVSVERSION \"\" */\n";
-}
+# Print the CVS version to $version_file.
+# Don't change the file if it is not needed.
+sub print_cvs_version
+{
+ my $cvs_version;
+ my $needs_update = 1;
-# Only write to cvsversion.h, if this changes its contents: This avoids needless
-# rebuilds of tethereal, mergecap etc.
-my $needsupdate=0;
+ if ($last) {
+ $cvs_version = "#define CVSVERSION \"" .
+ strftime($version_pref{"format"}, gmtime($last)) .
+ "\"\n";
+ } else {
+ $cvs_version = "/* #define CVSVERSION \"\" */\n";
+ }
+ if (open(OLDVER, "<$version_file")) {
+ if (<OLDVER> eq $cvs_version) {
+ print "$version_file is up-to-date.\n";
+ $needs_update = 0;
+ }
+ close OLDVER;
+ }
-if (! open(OLDVER, "<cvsversion.h")) {
- $needsupdate = 1;
-} else {
- if (<OLDVER> ne $last) {
- $needsupdate = 1;
+ if ($needs_update == 1) {
+ # print "Updating $version_file so it contains:\n$cvs_version";
+ open(VER, ">$version_file") || die ("Cannot write to $version_file ($!)\n");
+ print VER "$cvs_version";
+ close VER;
+ print "$version_file has been updated.\n";
}
- close OLDVER;
}
-if ($needsupdate == 1) {
- open(VER, ">cvsversion.h") || die ("Cannot write to cvsversion.h ($!)\n");
- print VER "$last";
- close VER;
+# Read values from the configuration file, if it exists.
+sub get_config {
+ open(FILE, "<$vconf_file") || print STDERR "Version configuration file $vconf_file not found. Using defaults.\n" && return 1;
+
+ while (<FILE>) {
+ chomp;
+ next if (/^#/);
+ next unless (/^(\w+):\s+(\S.*)/);
+ $version_pref{$1} = $2;
+ }
+ close FILE;
+ return 1;
}
-__END__
+##
+## Start of code
+##
+
+&get_config();
+if ($version_pref{"enable"} == 0) {
+ print "Version tag disabled in $vconf_file.\n";
+} elsif (-d "./CVS") {
+ print "This is a build from CVS (or a CVS snapshot), "
+ . "CVS version tag will be computed.\n";
+ &find_last_CVS_Entries(".");
+} else {
+ print "This is not a CVS build.\n";
+}
+# Now that we've computed everything, print the CVS version to $version_file
+&print_cvs_version;
+
+__END__
git.samba.org / obnox / wireshark / wip.git / blobdiff