forked from osmocom/wireshark
Speed up the generation of the CVS version tag, by only looking for directories
named CVS, and by considering only the most recent Entries file herein. Get rid of the code assuming that a CVS snapshot generates a "cvsversion" file. svn path=/trunk/; revision=9944
This commit is contained in:
Olivier Biot
parent
83b121f500
commit
0f6fb86143
125
make-version.pl
125
make-version.pl
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@ -2,7 +2,7 @@
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#
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# Copyright 2004 Jörg Mayer (see AUTHORS file)
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#
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# $Id: make-version.pl,v 1.4 2004/01/18 05:17:23 jmayer Exp $
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# $Id: make-version.pl,v 1.5 2004/02/01 11:32:23 obiot Exp $
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#
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# Ethereal - Network traffic analyzer
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# By Gerald Combs <gerald@ethereal.com>
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@ -26,39 +26,57 @@
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use strict;
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my ($d1,$d2,$d3,$date,$drest);
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my ($wdayascii, $monthascii, $day, $time, $year);
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my $version_file = 'cvsversion.h';
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my %asctonum = ( "Jan" => "01", "Feb" => "02", "Mar" => "03", "Apr" => "04",
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"May" => "05", "Jun" => "06", "Jul" => "07", "Aug" => "08",
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"Sep" => "09", "Oct" => "10", "Nov" => "11", "Dec" => "12" );
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my $current;
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my $last = "";
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my $last_modified = 0;
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my $last_file = undef;
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# Recursively find all files named Entries and call lastentry on them.
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# Args: Startdirectory
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sub findentries {
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my $currentdir = shift;
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# Recursively find all CVS Entries files starting from the given directory,
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# and compute the modification time of the most recently modified Entries file.
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sub find_last_CVS_Entries {
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my $dir = shift;
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my $d;
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opendir(DIR, "$currentdir") || print STDERR "Opendir $currentdir failed ($!)\n" && next;
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grep { (-d "$currentdir/$_" && $_ !~ /^\.(|.)$/ && &findentries("$currentdir/$_")) ||
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(-f "$currentdir/$_" && $_ =~ /^Entries$/ && &lastentry("$currentdir/$_")) } readdir(DIR);
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opendir(DIR, "$dir") || print STDERR "Can't open directory $dir ($!)\n" && next;
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foreach $d (readdir(DIR)) {
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if (-d "$dir/$d" && $d !~ /^\.(|.)$/) {
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if ($d =~ /^CVS$/) {
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my @stat = stat("$dir/CVS/Entries");
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if (@stat) {
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if ($last_modified < $stat[9]) {
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$last_modified = $stat[9];
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$last_file = "$dir/CVS/Entries"
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}
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}
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} else { # Recurse in directory
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&find_last_CVS_Entries("$dir/$d");
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}
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}
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}
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closedir DIR;
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}
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# Check all entries in $file. In case they are newer, update $last accordingly
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# Args: Entries file
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sub lastentry {
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my $date;
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my ($wdayascii, $monthascii, $day, $time, $year);
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my $file = shift;
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my $current;
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open(FILE, "<$file") || print STDERR "Open $file for reading failed ($!)\n" && return 1;
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while (<FILE>) {
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chomp;
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# Regular lines look like this: /ethereal_be.py/1.6/Fri Aug 2 22:55:19 2002//
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next if (/^D/);
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($d1,$d2,$d2,$date,$drest) = split(/\//, $_, 5);
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$date = (split(/\//, $_, 5))[3];
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next if ($date !~ /\d:\d\d:\d\d/);
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($wdayascii, $monthascii, $day, $time, $year) = split(/\s+/, $date);
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$day = substr("0".$day, -2, 2);
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@ -72,39 +90,62 @@ sub lastentry {
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return 1;
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}
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&findentries(".");
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# In case that there are no Entries files but the sources are based on a cvs snapshot,
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# it is possible to add a file cvsversion to the toplevel directory containing the
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# cvs version string YYYYMMDDhhmmss
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if ($last eq "" && -f "cvsversion") {
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$last = `cat cvsversion`;
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}
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if ( $last ne "" ) {
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$last = "#define CVSVERSION \"$last\"\n";
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} else {
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$last = "/* #define CVSVERSION \"\" */\n";
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}
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# Print the CVS version to $version_file.
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# Don't change the file if it is not needed.
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sub print_cvs_version
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{
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my $cvs_version;
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my $needs_update = 1;
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# Only write to cvsversion.h, if this changes its contents: This avoids needless
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# rebuilds of tethereal, mergecap etc.
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my $needsupdate=0;
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if (! open(OLDVER, "<cvsversion.h")) {
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$needsupdate = 1;
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} else {
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if (<OLDVER> ne $last) {
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$needsupdate = 1;
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if ($last ne "") {
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$cvs_version = "#define CVSVERSION \"$last\"\n";
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} else {
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$cvs_version = "/* #define CVSVERSION \"\" */\n";
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}
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if (open(OLDVER, "<$version_file")) {
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if (<OLDVER> eq $cvs_version) {
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print "$version_file is up-to-date.\n";
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$needs_update = 0;
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}
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close OLDVER;
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}
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if ($needs_update == 1) {
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# print "Updating $version_file so it contains:\n$cvs_version";
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open(VER, ">$version_file") || die ("Cannot write to $version_file ($!)\n");
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print VER "$cvs_version";
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close VER;
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print "$version_file has been updated.\n";
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}
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close OLDVER;
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}
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if ($needsupdate == 1) {
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open(VER, ">cvsversion.h") || die ("Cannot write to cvsversion.h ($!)\n");
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print VER "$last";
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close VER;
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##
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## Start of code
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##
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if (-d "./CVS") {
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print "This is a build from CVS (or a CVS snapshot), "
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. "CVS version tag will be computed.\n";
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&find_last_CVS_Entries(".");
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} else {
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print "This is not a CVS build.\n";
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}
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# Now $last_modified and $last_file are set if we found one CVS/Entries file.
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# We need to invoke lastentry on the most recent entries file.
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if (defined $last_file) {
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my @version_stat = stat($version_file);
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my $version_mtime = 0;
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if (@version_stat) {
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$version_mtime = $version_stat[9];
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}
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&lastentry($last_file);
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# print "Last: $last_file\t($last)\n";
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}
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# Now that we've computed everything, print the CVS version to $version_file
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&print_cvs_version;
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__END__
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