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# http://raw.no/personal/blog |
# http://raw.no/personal/blog |
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# |
# |
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# 2004-03-09 Dobrica Pavlinusic <dpavlin@rot13.org> |
# 2004-03-09 Dobrica Pavlinusic <dpavlin@rot13.org> |
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# |
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# documentation is after __END__ |
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use strict; |
use strict; |
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use File::Temp qw/ tempdir /; |
use File::Temp qw/ tempdir /; |
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use File::Path; |
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use Data::Dumper; |
use Data::Dumper; |
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use XML::Simple; |
use XML::Simple; |
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|
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# get current user home directory |
# do we want to sync just part of repository? |
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my $HOME = $ENV{'HOME'} || die "can't get home directory!"; |
my $partial_import = 1; |
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if (@ARGV < 2) { |
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print "usage: $0 SVN_URL CVSROOT CVSREPOSITORY\n"; |
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exit 1; |
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} |
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my ($SVNROOT,$CVSROOT, $CVSREP) = @ARGV; |
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if ($SVNROOT !~ m,^[\w+]+:///*\w+,) { |
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print "ERROR: invalid svn root $SVNROOT\n"; |
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exit 1; |
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} |
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# cvsroot directory |
# Ensure File::Temp::END can clean up: |
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my $CVSROOT="$HOME/x/cvsroot"; |
$SIG{__DIE__} = sub { chdir("/tmp"); die @_ }; |
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# name of cvs repository to commit to |
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my $CVSREP="webpac"; |
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# svnroot directory |
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my $SVNROOT="file://$HOME/private/svn/webpac/"; |
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# name of respository |
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my $SVNREP="trunk"; |
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my $TMPDIR=tempdir( "/tmp/checkoutXXXXX", CLEANUP => 1 ); |
my $TMPDIR=tempdir( "/tmp/checkoutXXXXX", CLEANUP => 1 ); |
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chdir($TMPDIR) || die "can't cd to $TMPDIR: $!"; |
sub cd_tmp { |
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chdir($TMPDIR) || die "can't cd to $TMPDIR: $!"; |
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} |
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sub cd_rep { |
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chdir("$TMPDIR/$CVSREP") || die "can't cd to $TMPDIR/$CVSREP: $!"; |
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} |
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print "## using TMPDIR $TMPDIR\n"; |
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# cvs command with root |
# cvs command with root |
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my $cvs="cvs -d $CVSROOT"; |
my $cvs="cvs -f -d $CVSROOT"; |
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# current revision in CVS |
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my $rev; |
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# |
# |
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# sub to do logging and system calls |
# sub to do logging and system calls |
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sub log_system($$) { |
sub log_system($$) { |
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my ($cmd,$errmsg) = @_; |
my ($cmd,$errmsg) = @_; |
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print STDERR "## $cmd\n"; |
print STDERR "## $cmd\n"; |
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system $cmd || die "$errmsg: $!"; |
system($cmd) == 0 || die "$errmsg: $!"; |
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} |
} |
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# |
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# sub to commit .svn rev file later |
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# |
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sub commit_svnrev { |
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my $rev = shift @_; |
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my $add_new = shift @_; |
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# ok, now do the checkout |
die "commit_svnrev needs revision" if (! defined($rev)); |
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log_system("$cvs checkout $CVSREP","cvs checkout failed"); |
open(SVNREV,"> .svnrev") || die "can't open $TMPDIR/$CVSREP/.svnrev: $!"; |
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print SVNREV $rev; |
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close(SVNREV); |
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# check if svnrev exists |
my $path=".svnrev"; |
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if (! -e "$CVSREP/.svnrev") { |
if ($add_new) { |
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print <<_USAGE_; |
system "$cvs add '$path'" || die "cvs add of $path failed: $!"; |
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} else { |
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my $msg="subversion revision $rev commited to CVS"; |
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print "$msg\n"; |
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system "$cvs commit -m '$msg' '$path'" || die "cvs commit of $path failed: $!"; |
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} |
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} |
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Your CVS repository doesn't have $TMPDIR/$CVSREP/.svnrev file! |
sub add_dir($$) { |
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my ($path,$msg) = @_; |
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print "# add_dir($path)\n"; |
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die "add_dir($path) is not directory" unless (-d $path); |
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This file is used to commit changes to CVS repository with correct |
my $curr_dir; |
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logs from Subversion. |
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Please create .svnrec file with currect svn revision which |
foreach my $d (split(m#/#, $path)) { |
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corresponds to version of checkouted tree and commit that file |
$curr_dir .= ( $curr_dir ? '/' : '') . $d; |
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to CVS repository, e.g. |
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echo 233 > .svnrev |
next if in_entries($curr_dir); |
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cvs add .svnrev |
next if (-e "$curr_dir/CVS"); |
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cvs commit -m "subversion repository revision sync file" .svnrev |
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_USAGE_ |
log_system("$cvs add '$curr_dir'", "cvs add of $curr_dir failed"); |
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print "CVS Repository left in $TMPDIR/$CVSREP\n"; |
} |
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exit 1; |
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} |
} |
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# ok, now do the checkout |
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eval { |
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cd_tmp; |
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log_system("$cvs -q checkout $CVSREP", "cvs checkout failed"); |
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}; |
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open(SVNREV,"$CVSREP/.svnrev") || die "can't open $TMPDIR/$CVSREP/.svnrev: $!"; |
if ($@) { |
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my $rev = <SVNREV>; |
print <<_NEW_REP_; |
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chomp($rev); |
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close(SVNREV); |
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print "Starting after revision $rev\n"; |
There is no CVS repository '$CVSREP' in your CVS. I will assume that |
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this is import of new module in your CVS and start from revision 0. |
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Press enter to continue importing new CVS repository or CTRL+C to abort. |
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# |
_NEW_REP_ |
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# sub to commit .svn rev file later |
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# |
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sub commit_svnrev($) { |
print "start import of new module [yes]: "; |
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my $rev = shift @_ || die "commit_svnrev needs revision"; |
my $in = <STDIN>; |
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cd_tmp; |
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mkdir($CVSREP) || die "can't create $CVSREP: $!"; |
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cd_rep; |
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open(SVNREV,"> $CVSREP/.svnrev") || die "can't open $TMPDIR/$CVSREP/.svnrev: $!"; |
open(SVNREV,"> .svnrev") || die "can't open $CVSREP/.svnrev: $!"; |
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print SVNREV $rev; |
print SVNREV "0"; |
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close(SVNREV); |
close(SVNREV); |
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my $msg="subversion revision $rev commited to CVS"; |
$rev = 0; |
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my $path=".svnrev"; |
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print "$msg\n"; |
# create new module |
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system "$cvs commit -m \"$msg\" $CVSREP/$path" || die "cvs commit of $path failed: $!"; |
cd_rep; |
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log_system("$cvs import -d -m 'new CVS module' $CVSREP svn r$rev", "import of new repository"); |
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cd_tmp; |
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rmtree($CVSREP) || die "can't remove $CVSREP"; |
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log_system("$cvs -q checkout $CVSREP", "cvs checkout failed"); |
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cd_rep; |
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} else { |
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# import into existing module directory in CVS |
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cd_rep; |
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# check if svnrev exists |
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if (! -e ".svnrev") { |
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print <<_USAGE_; |
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Your CVS repository doesn't have .svnrev file! |
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This file is used to keep CVS repository and Subversion in sync, so |
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that only newer changes will be commited. |
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It's quote possible that this is first svn2cvs run for this repository. |
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If so, you will have to identify correct svn revision which |
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corresponds to current version of CVS repository that has just |
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been checkouted. |
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If you migrated your cvs repository to svn using cvs2svn, this will be |
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last Subversion revision. If this is initial run of conversion of |
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Subversion repository to CVS, correct revision is 0. |
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_USAGE_ |
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print "svn revision corresponding to CVS [abort]: "; |
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my $in = <STDIN>; |
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chomp($in); |
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if ($in !~ /^\d+$/) { |
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print "Aborting: revision not a number\n"; |
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exit 1; |
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} else { |
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$rev = $in; |
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commit_svnrev($rev,1); # create new |
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} |
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} else { |
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open(SVNREV,".svnrev") || die "can't open $TMPDIR/$CVSREP/.svnrev: $!"; |
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$rev = <SVNREV>; |
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chomp($rev); |
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close(SVNREV); |
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} |
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print "Starting after revision $rev\n"; |
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$rev++; |
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} |
} |
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# |
# |
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# FIXME!! HEAD should really be next verison and loop because this way we |
# FIXME!! HEAD should really be next verison and loop because this way we |
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# loose multiple edits of same file and corresponding messages. On the |
# loose multiple edits of same file and corresponding messages. On the |
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# case much about accuracy and completnes of logs there, this might |
# case much about accuracy and completnes of logs there, this might |
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# be good. YMMV |
# be good. YMMV |
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# |
# |
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open(LOG, "svn log -r $rev:HEAD -v --xml $SVNROOT/$SVNREP |") || die "svn log for repository $SVNROOT/$SVNREP failed: $!"; |
open(LOG, "svn log -r $rev:HEAD -v --xml $SVNROOT |") || die "svn log for repository $SVNROOT failed: $!"; |
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my $log; |
my $log; |
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while(<LOG>) { |
while(<LOG>) { |
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$log .= $_; |
$log .= $_; |
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} |
} |
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close(LOG); |
close(LOG); |
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my $xml = XMLin($log, ForceArray => [ 'path' ]); |
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my $xml; |
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eval { |
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$xml = XMLin($log, ForceArray => [ 'logentry', 'path' ]); |
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}; |
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=begin log_example |
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------------------------------------------------------------------------ |
#=begin log_example |
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r256 | dpavlin | 2004-03-09 13:18:17 +0100 (Tue, 09 Mar 2004) | 2 lines |
# |
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#------------------------------------------------------------------------ |
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#r256 | dpavlin | 2004-03-09 13:18:17 +0100 (Tue, 09 Mar 2004) | 2 lines |
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# |
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#ported r254 from hidra branch |
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# |
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#=cut |
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ported r254 from hidra branch |
my $fmt = "\n" . "-" x 79 . "\nr%5s| %8s | %s\n\n%s\n"; |
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=cut |
if (! $xml->{'logentry'}) { |
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print "no newer log entries in Subversion repostory. CVS is current\n"; |
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exit 0; |
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} |
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my $fmt = "\n" . "-" x 79 . "\nr%5s| %8s | %s\n\n%s\n"; |
# check if file exists in CVS/Entries |
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sub in_entries($) { |
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my $path = shift; |
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if ($path !~ m,^(.*?/*)([^/]+)$,) { |
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die "can't split '$path' to dir and file!"; |
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} else { |
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my ($d,$f) = ($1,$2); |
232 |
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if ($d !~ m,/$, && $d ne "") { |
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$d .= "/"; |
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} |
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open(E, $d."CVS/Entries") || return 0; |
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while(<E>) { |
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return(1) if (m,^/$f/,); |
238 |
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} |
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close(E); |
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return 0; |
241 |
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} |
242 |
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} |
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cd_tmp; |
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cd_rep; |
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foreach my $e (@{$xml->{'logentry'}}) { |
foreach my $e (@{$xml->{'logentry'}}) { |
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die "BUG: revision from .svnrev ($rev) greater than from subversion (".$e->{'revision'}.")" if ($rev > $e->{'revision'}); |
die "BUG: revision from .svnrev ($rev) greater than from subversion (".$e->{'revision'}.")" if ($rev > $e->{'revision'}); |
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$rev = $e->{'revision'}; |
$rev = $e->{'revision'}; |
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log_system("svn export --force -q -r $rev $SVNROOT/$SVNREP $CVSREP", "svn export of revision $rev failed"); |
log_system("svn export --force -q -r $rev $SVNROOT $TMPDIR/$CVSREP", "svn export of revision $rev failed"); |
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# deduce name of svn directory |
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my $SVNREP = ""; |
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my $tmpsvn = $SVNROOT || die "BUG: SVNROOT empty!"; |
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my $tmppath = $e->{'paths'}->{'path'}->[0]->{'content'} || die "BUG: tmppath empty!"; |
256 |
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do { |
257 |
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if ($tmpsvn =~ s#(/[^/]+)/*$##) { |
258 |
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$SVNREP = $1 . $SVNREP; |
259 |
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} elsif ($e->{'paths'}->{'path'}->[0]->{'copyfrom-path'}) { |
260 |
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print "NOTICE: copyfrom outside synced repository ignored - skipping\n"; |
261 |
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next; |
262 |
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} else { |
263 |
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print "NOTICE: can't deduce svn dir from $SVNROOT - skipping\n"; |
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next; |
265 |
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} |
266 |
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} until ($tmppath =~ m/^$SVNREP/); |
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print "NOTICE: using $SVNREP as directory for svn\n"; |
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270 |
printf($fmt, $e->{'revision'}, $e->{'author'}, $e->{'date'}, $e->{'msg'}); |
printf($fmt, $e->{'revision'}, $e->{'author'}, $e->{'date'}, $e->{'msg'}); |
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my @commit; |
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273 |
foreach my $p (@{$e->{'paths'}->{'path'}}) { |
foreach my $p (@{$e->{'paths'}->{'path'}}) { |
274 |
my ($action,$path) = ($p->{'action'},$p->{'content'}); |
my ($action,$path) = ($p->{'action'},$p->{'content'}); |
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next if ($path =~ m#/\.svnrev$#); |
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print "svn2cvs: $action $path\n"; |
print "svn2cvs: $action $path\n"; |
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# prepare path and message |
# prepare path and message |
281 |
my $file = $path; |
my $file = $path; |
282 |
$path =~ s,^/$SVNREP/*,, || die "BUG: can't strip SVNREP from path"; |
if ( $path !~ s#^\Q$SVNREP\E/*## ) { |
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print "NOTICE: skipping '$path' which isn't under repository root '$SVNREP'\n"; |
284 |
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die unless $partial_import; |
285 |
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next; |
286 |
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} |
287 |
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288 |
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if (! $path) { |
289 |
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print "NOTICE: skipped this operation. Probably trunk creation\n"; |
290 |
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next; |
291 |
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} |
292 |
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293 |
my $msg = $e->{'msg'}; |
my $msg = $e->{'msg'}; |
294 |
$msg =~ s/"/\\"/g; # quote " |
$msg =~ s/'/'\\''/g; # quote " |
295 |
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|
296 |
if ($action =~ /M/) { |
if ($action =~ /M/) { |
297 |
print "svn2cvs: modify $path -- nop\n"; |
print "svn2cvs: modify $path -- nop\n"; |
298 |
} elsif ($action =~ /A/) { |
} elsif ($action =~ /A/) { |
299 |
log_system("$cvs add -m \"$msg\" $CVSREP/$path", "cvs add of $path failed"); |
if (-d $path) { |
300 |
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add_dir($path, $msg); |
301 |
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} elsif ($path =~ m,^(.+)/[^/]+$, && ! -e "$1/CVS/Root") { |
302 |
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my $dir = $1; |
303 |
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in_entries($dir) || add_dir($dir, $msg); |
304 |
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in_entries($path) || log_system("$cvs add '$path'", "cvs add of $path failed"); |
305 |
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} else { |
306 |
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in_entries($path) || log_system("$cvs add '$path'", "cvs add of $path failed"); |
307 |
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} |
308 |
} elsif ($action =~ /D/) { |
} elsif ($action =~ /D/) { |
309 |
log_system("$cvs delete -m \"$msg\" $CVSREP/$path", "cvs delete of $path failed"); |
if (-e $path) { |
310 |
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unlink $path || die "can't delete $path: $!"; |
311 |
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log_system("$cvs delete '$path'", "cvs delete of $path failed"); |
312 |
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} else { |
313 |
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print "WARNING: $path is not present, skipping...\n"; |
314 |
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undef $path; |
315 |
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} |
316 |
} else { |
} else { |
317 |
print "WARNING: action $action not implemented on $path. Bug or missing feature of $0\n"; |
print "WARNING: action $action not implemented on $path. Bug or missing feature of $0\n"; |
318 |
} |
} |
319 |
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|
320 |
# now commit changes |
# save commits for later |
321 |
log_system("$cvs commit -m \"$msg\" $CVSREP/$path", "cvs commit of $path failed"); |
push @commit, $path if ($path); |
322 |
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|
323 |
} |
} |
324 |
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325 |
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my $msg = $e->{'msg'}; |
326 |
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$msg =~ s/'/'\\''/g; # quote " |
327 |
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328 |
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# now commit changes |
329 |
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log_system("$cvs commit -m '$msg' '".join("' '",@commit)."'", "cvs commit of ".join(",",@commit)." failed"); |
330 |
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|
331 |
commit_svnrev($rev); |
commit_svnrev($rev); |
332 |
} |
} |
333 |
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334 |
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# cd out of $CVSREP before File::Temp::END is called |
335 |
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chdir("/tmp") || die "can't cd to /tmp: $!"; |
336 |
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|
337 |
__END__ |
__END__ |
338 |
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339 |
svn export --force "$SVNROOT/$SVNREP" "$CVSREP" |
=pod |
340 |
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|
341 |
cd dotfiles |
=head1 NAME |
342 |
|
|
343 |
for file in $(find -type f -not -path \*CVS\*); do |
svn2cvs - save subversion commits to (read-only) cvs repository |
344 |
FILE=$(basename $file) |
|
345 |
DIR=$(dirname $file) |
=head1 SYNOPSIS |
346 |
if ! grep -q "^/$FILE/" $DIR/CVS/Entries ; then |
|
347 |
cvs add $file |
./svn2cvs.pl SVN_URL CVSROOT CVSREPOSITORY |
348 |
fi |
|
349 |
done |
Usage example (used to self-host this script): |
350 |
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|
351 |
#cvs commit -m "Automatic commit from SVN" |
./svn2cvs.pl file:///home/dpavlin/private/svn/svn2cvs/trunk/ \ |
352 |
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:pserver:dpavlin@cvs.tigris.org:/cvs svn2cvs/src |
353 |
#rm -rf $TMPDIR |
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354 |
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=head1 DESCRIPTION |
355 |
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|
356 |
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This script will allows you to commit changes made to Subversion repository to |
357 |
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(read-only) CVS repository manually or from Subversion's C<post-commit> hook. |
358 |
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|
359 |
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It's using F<.svnrev> file (which will be created on first run) in |
360 |
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B<CVSROOT/CVSREPOSITORY> to store last Subversion revision which was |
361 |
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committed into CVS. |
362 |
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|
363 |
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One run will do following things: |
364 |
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|
365 |
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=over 4 |
366 |
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367 |
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=item * |
368 |
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checkout B<CVSREPOSITORY> from B<CVSROOT> to temporary directory |
369 |
|
|
370 |
|
=item * |
371 |
|
check if F<.svnrev> file exists and create it if it doesn't |
372 |
|
|
373 |
|
=item * |
374 |
|
loop through all revisions from current in B<CVSROOT/CVSREPOSITORY> (using |
375 |
|
F<.svnrev>) up to B<HEAD> (current one) |
376 |
|
|
377 |
|
=over 5 |
378 |
|
|
379 |
|
=item * |
380 |
|
checkout next Subversion revision from B<SVN_URL> over CVS checkout |
381 |
|
temporary directory |
382 |
|
|
383 |
|
=item * |
384 |
|
make modification (add and/or delete) done in that revision |
385 |
|
|
386 |
|
=item * |
387 |
|
commit modification (added, deleted or modified files/dirs) while |
388 |
|
preserving original message from CVS |
389 |
|
|
390 |
|
=item * |
391 |
|
update F<.svnrev> to match current revision |
392 |
|
|
393 |
|
=back |
394 |
|
|
395 |
|
=item * |
396 |
|
cleanup temporary directory |
397 |
|
|
398 |
|
=back |
399 |
|
|
400 |
|
If checkout fails for some reason (e.g. flaky ssh connection), you will |
401 |
|
still have valid CVS repository, so all you have to do is run B<svn2cvs.pl> |
402 |
|
again. |
403 |
|
|
404 |
|
=head1 WARNINGS |
405 |
|
|
406 |
|
"Cheap" copy operations in Subversion are not at all cheap in CVS. They will |
407 |
|
create multiple copies of files in CVS repository! |
408 |
|
|
409 |
|
This script assume that you want to sync your C<trunk> (or any other |
410 |
|
directory for that matter) directory with CVS, not root of your subversion. |
411 |
|
This might be considered bug, but since common practise is to have |
412 |
|
directories C<trunk> and C<branches> in svn and source code in them, it's |
413 |
|
not serious limitation. |
414 |
|
|
415 |
|
=head1 RELATED PROJECTS |
416 |
|
|
417 |
|
B<Subversion> L<http://subversion.tigris.org/> version control system that is a |
418 |
|
compelling replacement for CVS in the open source community. |
419 |
|
|
420 |
|
B<cvs2svn> L<http://cvs2svn.tigris.org/> converts a CVS repository to a |
421 |
|
Subversion repository. It is designed for one-time conversions, not for |
422 |
|
repeated synchronizations between CVS and Subversion. |
423 |
|
|
424 |
|
=head1 CHANGES |
425 |
|
|
426 |
|
Versions of this utility are actually Subversion repository revisions, |
427 |
|
so they might not be in sequence. |
428 |
|
|
429 |
|
=over 3 |
430 |
|
|
431 |
|
=item r10 |
432 |
|
|
433 |
|
First release available to public |
434 |
|
|
435 |
|
=item r15 |
436 |
|
|
437 |
|
Addition of comprehensive documentation, fixes for quoting in commit |
438 |
|
messages, and support for skipping changes which are not under current |
439 |
|
Subversion checkout root (e.g. branches). |
440 |
|
|
441 |
|
=item r18 |
442 |
|
|
443 |
|
Support for importing your svn into empty CVS repository (it will first |
444 |
|
create module and than dump all revisions). |
445 |
|
Group commit operations to save round-trips to CVS server. |
446 |
|
Documentation improvements and other small fixes. |
447 |
|
|
448 |
|
=item r20 |
449 |
|
|
450 |
|
Fixed path deduction (overlap between Subversion reporistory and CVS checkout). |
451 |
|
|
452 |
|
=item r21 |
453 |
|
|
454 |
|
Use C<update -d> instead of checkout after import. |
455 |
|
Added fixes by Paul Egan <paulegan@mail.com> for XMLin and fixing working |
456 |
|
directory. |
457 |
|
|
458 |
|
=item r22 |
459 |
|
|
460 |
|
Rewritten import from revision 0 to empty repository, better importing |
461 |
|
of deep directory structures, initial support for recovery from partial |
462 |
|
commit. |
463 |
|
|
464 |
|
=back |
465 |
|
|
466 |
|
=head1 AUTHOR |
467 |
|
|
468 |
|
Dobrica Pavlinusic <dpavlin@rot13.org> |
469 |
|
|
470 |
|
L<http://www.rot13.org/~dpavlin/> |
471 |
|
|
472 |
|
=head1 LICENSE |
473 |
|
|
474 |
|
This product is licensed under GNU Public License (GPL) v2 or later. |
475 |
|
|
476 |
|
=cut |
477 |
|
|
|
echo "cvs left in $TMPDIR" |
|