diff options
Diffstat (limited to 'git-cvsimport-script')
-rwxr-xr-x | git-cvsimport-script | 757 |
1 files changed, 728 insertions, 29 deletions
diff --git a/git-cvsimport-script b/git-cvsimport-script index 0ba67461da..4c0333b929 100755 --- a/git-cvsimport-script +++ b/git-cvsimport-script @@ -1,38 +1,737 @@ -#!/bin/sh +#!/usr/bin/perl -w -usage () { - echo "Usage: git cvsimport [-v] [-z fuzz] <cvsroot> <module>" - exit 1 +# This tool is copyright (c) 2005, Matthias Urlichs. +# It is released under the Gnu Public License, version 2. +# +# The basic idea is to aggregate CVS check-ins into related changes. +# Fortunately, "cvsps" does that for us; all we have to do is to parse +# its output. +# +# Checking out the files is done by a single long-running CVS connection +# / server process. +# +# The head revision is on branch "origin" by default. +# You can change that with the '-o' option. + +use strict; +use warnings; +use Getopt::Std; +use File::Spec; +use File::Temp qw(tempfile); +use File::Path qw(mkpath); +use File::Basename qw(basename dirname); +use Time::Local; +use IO::Socket; +use IO::Pipe; +use POSIX qw(strftime dup2); + +$SIG{'PIPE'}="IGNORE"; +$ENV{'TZ'}="UTC"; + +our($opt_h,$opt_o,$opt_v,$opt_d,$opt_p,$opt_C,$opt_z); + +sub usage() { + print STDERR <<END; +Usage: ${\basename $0} # fetch/update GIT from CVS + [ -o branch-for-HEAD ] [ -h ] [ -v ] [ -d CVSROOT ] + [ -p opts-for-cvsps ] [ -C GIT_repository ] [ -z fuzz ] + [ CVS_module ] +END + exit(1); } -CVS2GIT="" -CVSPS="--cvs-direct -x -A" -while true; do - case "$1" in - -v) CVS2GIT="$1" ;; - -z) shift; CVSPS="$CVSPS -z $1" ;; - -*) usage ;; - *) break ;; - esac - shift -done +getopts("hvo:d:p:C:z:") or usage(); +usage if $opt_h; + +@ARGV <= 1 or usage(); -export CVSROOT="$1" -export MODULE="$2" -if [ ! "$CVSROOT" ] || [ ! "$MODULE" ] ; then - usage -fi +if($opt_d) { + $ENV{"CVSROOT"} = $opt_d; +} elsif(-f 'CVS/Root') { + open my $f, '<', 'CVS/Root' or die 'Failed to open CVS/Root'; + $opt_d = <$f>; + chomp $opt_d; + close $f; + $ENV{"CVSROOT"} = $opt_d; +} elsif($ENV{"CVSROOT"}) { + $opt_d = $ENV{"CVSROOT"}; +} else { + die "CVSROOT needs to be set"; +} +$opt_o ||= "origin"; +my $git_tree = $opt_C; +$git_tree ||= "."; -cvsps -h 2>&1 | grep -q "cvsps version 2.1" >& /dev/null || { - echo "I need cvsps version 2.1" - exit 1 +my $cvs_tree; +if ($#ARGV == 0) { + $cvs_tree = $ARGV[0]; +} elsif (-f 'CVS/Repository') { + open my $f, '<', 'CVS/Repository' or + die 'Failed to open CVS/Repository'; + $cvs_tree = <$f>; + chomp $cvs_tree; + close $f +} else { + usage(); } -mkdir "$MODULE" || exit 1 -cd "$MODULE" +select(STDERR); $|=1; select(STDOUT); + + +package CVSconn; +# Basic CVS dialog. +# We're only interested in connecting and downloading, so ... + +use File::Spec; +use File::Temp qw(tempfile); +use POSIX qw(strftime dup2); + +sub new { + my($what,$repo,$subdir) = @_; + $what=ref($what) if ref($what); + + my $self = {}; + $self->{'buffer'} = ""; + bless($self,$what); + + $repo =~ s#/+$##; + $self->{'fullrep'} = $repo; + $self->conn(); + + $self->{'subdir'} = $subdir; + $self->{'lines'} = undef; + + return $self; +} + +sub conn { + my $self = shift; + my $repo = $self->{'fullrep'}; + if($repo =~ s/^:pserver:(?:(.*?)(?::(.*?))?@)?([^:\/]*)(?::(\d*))?//) { + my($user,$pass,$serv,$port) = ($1,$2,$3,$4); + $user="anonymous" unless defined $user; + my $rr2 = "-"; + unless($port) { + $rr2 = ":pserver:$user\@$serv:$repo"; + $port=2401; + } + my $rr = ":pserver:$user\@$serv:$port$repo"; + + unless($pass) { + open(H,$ENV{'HOME'}."/.cvspass") and do { + # :pserver:cvs@mea.tmt.tele.fi:/cvsroot/zmailer Ah<Z + while(<H>) { + chomp; + s/^\/\d+\s+//; + my ($w,$p) = split(/\s/,$_,2); + if($w eq $rr or $w eq $rr2) { + $pass = $p; + last; + } + } + }; + } + $pass="A" unless $pass; + + my $s = IO::Socket::INET->new(PeerHost => $serv, PeerPort => $port); + die "Socket to $serv: $!\n" unless defined $s; + $s->write("BEGIN AUTH REQUEST\n$repo\n$user\n$pass\nEND AUTH REQUEST\n") + or die "Write to $serv: $!\n"; + $s->flush(); + + my $rep = <$s>; + + if($rep ne "I LOVE YOU\n") { + $rep="<unknown>" unless $rep; + die "AuthReply: $rep\n"; + } + $self->{'socketo'} = $s; + $self->{'socketi'} = $s; + } else { # local or ext: Fork off our own cvs server. + my $pr = IO::Pipe->new(); + my $pw = IO::Pipe->new(); + my $pid = fork(); + die "Fork: $!\n" unless defined $pid; + my $cvs = 'cvs'; + $cvs = $ENV{CVS_SERVER} if exists $ENV{CVS_SERVER}; + my $rsh = 'rsh'; + $rsh = $ENV{CVS_RSH} if exists $ENV{CVS_RSH}; + + my @cvs = ($cvs, 'server'); + my ($local, $user, $host); + $local = $repo =~ s/:local://; + if (!$local) { + $repo =~ s/:ext://; + $local = !($repo =~ s/^(?:([^\@:]+)\@)?([^:]+)://); + ($user, $host) = ($1, $2); + } + if (!$local) { + if ($user) { + unshift @cvs, $rsh, '-l', $user, $host; + } else { + unshift @cvs, $rsh, $host; + } + } + + unless($pid) { + $pr->writer(); + $pw->reader(); + dup2($pw->fileno(),0); + dup2($pr->fileno(),1); + $pr->close(); + $pw->close(); + exec(@cvs); + } + $pw->writer(); + $pr->reader(); + $self->{'socketo'} = $pw; + $self->{'socketi'} = $pr; + } + $self->{'socketo'}->write("Root $repo\n"); + + # Trial and error says that this probably is the minimum set + $self->{'socketo'}->write("Valid-responses ok error Valid-requests Mode M Mbinary E F Checked-in Created Updated Merged Removed\n"); + + $self->{'socketo'}->write("valid-requests\n"); + $self->{'socketo'}->flush(); + + chomp(my $rep=$self->readline()); + if($rep !~ s/^Valid-requests\s*//) { + $rep="<unknown>" unless $rep; + die "Expected Valid-requests from server, but got: $rep\n"; + } + chomp(my $res=$self->readline()); + die "validReply: $res\n" if $res ne "ok"; + + $self->{'socketo'}->write("UseUnchanged\n") if $rep =~ /\bUseUnchanged\b/; + $self->{'repo'} = $repo; +} + +sub readline { + my($self) = @_; + return $self->{'socketi'}->getline(); +} + +sub _file { + # Request a file with a given revision. + # Trial and error says this is a good way to do it. :-/ + my($self,$fn,$rev) = @_; + $self->{'socketo'}->write("Argument -N\n") or return undef; + $self->{'socketo'}->write("Argument -P\n") or return undef; + # $self->{'socketo'}->write("Argument -ko\n") or return undef; + # -ko: Linus' version doesn't use it + $self->{'socketo'}->write("Argument -r\n") or return undef; + $self->{'socketo'}->write("Argument $rev\n") or return undef; + $self->{'socketo'}->write("Argument --\n") or return undef; + $self->{'socketo'}->write("Argument $self->{'subdir'}/$fn\n") or return undef; + $self->{'socketo'}->write("Directory .\n") or return undef; + $self->{'socketo'}->write("$self->{'repo'}\n") or return undef; + # $self->{'socketo'}->write("Sticky T1.0\n") or return undef; + $self->{'socketo'}->write("co\n") or return undef; + $self->{'socketo'}->flush() or return undef; + $self->{'lines'} = 0; + return 1; +} +sub _line { + # Read a line from the server. + # ... except that 'line' may be an entire file. ;-) + my($self, $fh) = @_; + die "Not in lines" unless defined $self->{'lines'}; + + my $line; + my $res=0; + while(defined($line = $self->readline())) { + # M U gnupg-cvs-rep/AUTHORS + # Updated gnupg-cvs-rep/ + # /daten/src/rsync/gnupg-cvs-rep/AUTHORS + # /AUTHORS/1.1///T1.1 + # u=rw,g=rw,o=rw + # 0 + # ok + + if($line =~ s/^(?:Created|Updated) //) { + $line = $self->readline(); # path + $line = $self->readline(); # Entries line + my $mode = $self->readline(); chomp $mode; + $self->{'mode'} = $mode; + defined (my $cnt = $self->readline()) + or die "EOF from server after 'Changed'\n"; + chomp $cnt; + die "Duh: Filesize $cnt" if $cnt !~ /^\d+$/; + $line=""; + $res=0; + while($cnt) { + my $buf; + my $num = $self->{'socketi'}->read($buf,$cnt); + die "Server: Filesize $cnt: $num: $!\n" if not defined $num or $num<=0; + print $fh $buf; + $res += $num; + $cnt -= $num; + } + } elsif($line =~ s/^ //) { + print $fh $line; + $res += length($line); + } elsif($line =~ /^M\b/) { + # output, do nothing + } elsif($line =~ /^Mbinary\b/) { + my $cnt; + die "EOF from server after 'Mbinary'" unless defined ($cnt = $self->readline()); + chomp $cnt; + die "Duh: Mbinary $cnt" if $cnt !~ /^\d+$/ or $cnt<1; + $line=""; + while($cnt) { + my $buf; + my $num = $self->{'socketi'}->read($buf,$cnt); + die "S: Mbinary $cnt: $num: $!\n" if not defined $num or $num<=0; + print $fh $buf; + $res += $num; + $cnt -= $num; + } + } else { + chomp $line; + if($line eq "ok") { + # print STDERR "S: ok (".length($res).")\n"; + return $res; + } elsif($line =~ s/^E //) { + # print STDERR "S: $line\n"; + } else { + die "Unknown: $line\n"; + } + } + } +} +sub file { + my($self,$fn,$rev) = @_; + my $res; + + my ($fh, $name) = tempfile('gitcvs.XXXXXX', + DIR => File::Spec->tmpdir(), UNLINK => 1); + + $self->_file($fn,$rev) and $res = $self->_line($fh); + + if (!defined $res) { + # retry + $self->conn(); + $self->_file($fn,$rev) + or die "No file command send\n"; + $res = $self->_line($fh); + die "No input: $fn $rev\n" unless defined $res; + } + + return ($name, $res); +} + + +package main; -TZ=UTC cvsps $CVSPS $MODULE > .git-cvsps-result -[ -s .git-cvsps-result ] || exit 1 -git-cvs2git $CVS2GIT --cvsroot="$CVSROOT" --module="$MODULE" < .git-cvsps-result > .git-create-script || exit 1 -sh .git-create-script +my $cvs = CVSconn->new($opt_d, $cvs_tree); + +sub pdate($) { + my($d) = @_; + m#(\d{2,4})/(\d\d)/(\d\d)\s(\d\d):(\d\d)(?::(\d\d))?# + or die "Unparseable date: $d\n"; + my $y=$1; $y-=1900 if $y>1900; + return timegm($6||0,$5,$4,$3,$2-1,$y); +} + +sub pmode($) { + my($mode) = @_; + my $m = 0; + my $mm = 0; + my $um = 0; + for my $x(split(//,$mode)) { + if($x eq ",") { + $m |= $mm&$um; + $mm = 0; + $um = 0; + } elsif($x eq "u") { $um |= 0700; + } elsif($x eq "g") { $um |= 0070; + } elsif($x eq "o") { $um |= 0007; + } elsif($x eq "r") { $mm |= 0444; + } elsif($x eq "w") { $mm |= 0222; + } elsif($x eq "x") { $mm |= 0111; + } elsif($x eq "=") { # do nothing + } else { die "Unknown mode: $mode\n"; + } + } + $m |= $mm&$um; + return $m; +} + +sub getwd() { + my $pwd = `pwd`; + chomp $pwd; + return $pwd; +} + +-d $git_tree + or mkdir($git_tree,0777) + or die "Could not create $git_tree: $!"; +chdir($git_tree); + +my $last_branch = ""; +my $orig_branch = ""; +my $forward_master = 0; +my %branch_date; + +my $git_dir = $ENV{"GIT_DIR"} || ".git"; +$git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#; +$ENV{"GIT_DIR"} = $git_dir; +my $orig_git_index; +$orig_git_index = $ENV{GIT_INDEX_FILE} if exists $ENV{GIT_INDEX_FILE}; +my ($git_ih, $git_index) = tempfile('gitXXXXXX', SUFFIX => '.idx', + DIR => File::Spec->tmpdir()); +close ($git_ih); +$ENV{GIT_INDEX_FILE} = $git_index; +unless(-d $git_dir) { + system("git-init-db"); + die "Cannot init the GIT db at $git_tree: $?\n" if $?; + system("git-read-tree"); + die "Cannot init an empty tree: $?\n" if $?; + + $last_branch = $opt_o; + $orig_branch = ""; +} else { + -f "$git_dir/refs/heads/$opt_o" + or die "Branch '$opt_o' does not exist.\n". + "Either use the correct '-o branch' option,\n". + "or import to a new repository.\n"; + + $last_branch = basename(readlink("$git_dir/HEAD")); + unless($last_branch) { + warn "Cannot read the last branch name: $! -- assuming 'master'\n"; + $last_branch = "master"; + } + $orig_branch = $last_branch; + if (-f "$git_dir/CVS2GIT_HEAD") { + die <<EOM; +CVS2GIT_HEAD exists. +Make sure your working directory corresponds to HEAD and remove CVS2GIT_HEAD. +You may need to run + + git-read-tree -m -u CVS2GIT_HEAD HEAD +EOM + } + system('cp', "$git_dir/HEAD", "$git_dir/CVS2GIT_HEAD"); + + $forward_master = + $opt_o ne 'master' && -f "$git_dir/refs/heads/master" && + system('cmp', '-s', "$git_dir/refs/heads/master", + "$git_dir/refs/heads/$opt_o") == 0; + + # populate index + system('git-read-tree', $last_branch); + die "read-tree failed: $?\n" if $?; + + # Get the last import timestamps + opendir(D,"$git_dir/refs/heads"); + while(defined(my $head = readdir(D))) { + next if $head =~ /^\./; + open(F,"$git_dir/refs/heads/$head") + or die "Bad head branch: $head: $!\n"; + chomp(my $ftag = <F>); + close(F); + open(F,"git-cat-file commit $ftag |"); + while(<F>) { + next unless /^author\s.*\s(\d+)\s[-+]\d{4}$/; + $branch_date{$head} = $1; + last; + } + close(F); + } + closedir(D); +} + +-d $git_dir + or die "Could not create git subdir ($git_dir).\n"; + +my $pid = open(CVS,"-|"); +die "Cannot fork: $!\n" unless defined $pid; +unless($pid) { + my @opt; + @opt = split(/,/,$opt_p) if defined $opt_p; + unshift @opt, '-z', $opt_z if defined $opt_z; + exec("cvsps",@opt,"-u","-A","--cvs-direct",'--root',$opt_d,$cvs_tree); + die "Could not start cvsps: $!\n"; +} + + +## cvsps output: +#--------------------- +#PatchSet 314 +#Date: 1999/09/18 13:03:59 +#Author: wkoch +#Branch: STABLE-BRANCH-1-0 +#Ancestor branch: HEAD +#Tag: (none) +#Log: +# See ChangeLog: Sat Sep 18 13:03:28 CEST 1999 Werner Koch +#Members: +# README:1.57->1.57.2.1 +# VERSION:1.96->1.96.2.1 +# +#--------------------- + +my $state = 0; + +my($patchset,$date,$author,$branch,$ancestor,$tag,$logmsg); +my(@old,@new); +my $commit = sub { + my $pid; + while(@old) { + my @o2; + if(@old > 55) { + @o2 = splice(@old,0,50); + } else { + @o2 = @old; + @old = (); + } + system("git-update-cache","--force-remove","--",@o2); + die "Cannot remove files: $?\n" if $?; + } + while(@new) { + my @n2; + if(@new > 12) { + @n2 = splice(@new,0,10); + } else { + @n2 = @new; + @new = (); + } + system("git-update-cache","--add", + (map { ('--cacheinfo', @$_) } @n2)); + die "Cannot add files: $?\n" if $?; + } + + $pid = open(C,"-|"); + die "Cannot fork: $!" unless defined $pid; + unless($pid) { + exec("git-write-tree"); + die "Cannot exec git-write-tree: $!\n"; + } + chomp(my $tree = <C>); + length($tree) == 40 + or die "Cannot get tree id ($tree): $!\n"; + close(C) + or die "Error running git-write-tree: $?\n"; + print "Tree ID $tree\n" if $opt_v; + + my $parent = ""; + if(open(C,"$git_dir/refs/heads/$last_branch")) { + chomp($parent = <C>); + close(C); + length($parent) == 40 + or die "Cannot get parent id ($parent): $!\n"; + print "Parent ID $parent\n" if $opt_v; + } + + my $pr = IO::Pipe->new() or die "Cannot open pipe: $!\n"; + my $pw = IO::Pipe->new() or die "Cannot open pipe: $!\n"; + $pid = fork(); + die "Fork: $!\n" unless defined $pid; + unless($pid) { + $pr->writer(); + $pw->reader(); + dup2($pw->fileno(),0); + dup2($pr->fileno(),1); + $pr->close(); + $pw->close(); + + my @par = (); + @par = ("-p",$parent) if $parent; + exec("env", + "GIT_AUTHOR_NAME=$author", + "GIT_AUTHOR_EMAIL=$author", + "GIT_AUTHOR_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)), + "GIT_COMMITTER_NAME=$author", + "GIT_COMMITTER_EMAIL=$author", + "GIT_COMMITTER_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)), + "git-commit-tree", $tree,@par); + die "Cannot exec git-commit-tree: $!\n"; + } + $pw->writer(); + $pr->reader(); + + # compatibility with git2cvs + substr($logmsg,32767) = "" if length($logmsg) > 32767; + $logmsg =~ s/[\s\n]+\z//; + + print $pw "$logmsg\n" + or die "Error writing to git-commit-tree: $!\n"; + $pw->close(); + + print "Committed patch $patchset ($branch)\n" if $opt_v; + chomp(my $cid = <$pr>); + length($cid) == 40 + or die "Cannot get commit id ($cid): $!\n"; + print "Commit ID $cid\n" if $opt_v; + $pr->close(); + + waitpid($pid,0); + die "Error running git-commit-tree: $?\n" if $?; + + open(C,">$git_dir/refs/heads/$branch") + or die "Cannot open branch $branch for update: $!\n"; + print C "$cid\n" + or die "Cannot write branch $branch for update: $!\n"; + close(C) + or die "Cannot write branch $branch for update: $!\n"; + + if($tag) { + open(C,">$git_dir/refs/tags/$tag") + or die "Cannot create tag $tag: $!\n"; + print C "$cid\n" + or die "Cannot write tag $branch: $!\n"; + close(C) + or die "Cannot write tag $branch: $!\n"; + print "Created tag '$tag' on '$branch'\n" if $opt_v; + } +}; + +while(<CVS>) { + chomp; + if($state == 0 and /^-+$/) { + $state = 1; + } elsif($state == 0) { + $state = 1; + redo; + } elsif(($state==0 or $state==1) and s/^PatchSet\s+//) { + $patchset = 0+$_; + $state=2; + } elsif($state == 2 and s/^Date:\s+//) { + $date = pdate($_); + unless($date) { + print STDERR "Could not parse date: $_\n"; + $state=0; + next; + } + $state=3; + } elsif($state == 3 and s/^Author:\s+//) { + s/\s+$//; + $author = $_; + $state = 4; + } elsif($state == 4 and s/^Branch:\s+//) { + s/\s+$//; + $branch = $_; + $state = 5; + } elsif($state == 5 and s/^Ancestor branch:\s+//) { + s/\s+$//; + $ancestor = $_; + $ancestor = $opt_o if $ancestor eq "HEAD"; + $state = 6; + } elsif($state == 5) { + $ancestor = undef; + $state = 6; + redo; + } elsif($state == 6 and s/^Tag:\s+//) { + s/\s+$//; + if($_ eq "(none)") { + $tag = undef; + } else { + $tag = $_; + } + $state = 7; + } elsif($state == 7 and /^Log:/) { + $logmsg = ""; + $state = 8; + } elsif($state == 8 and /^Members:/) { + $branch = $opt_o if $branch eq "HEAD"; + if(defined $branch_date{$branch} and $branch_date{$branch} >= $date) { + # skip + print "skip patchset $patchset: $date before $branch_date{$branch}\n" if $opt_v; + $state = 11; + next; + } + if($ancestor) { + if(-f "$git_dir/refs/heads/$branch") { + print STDERR "Branch $branch already exists!\n"; + $state=11; + next; + } + unless(open(H,"$git_dir/refs/heads/$ancestor")) { + print STDERR "Branch $ancestor does not exist!\n"; + $state=11; + next; + } + chomp(my $id = <H>); + close(H); + unless(open(H,"> $git_dir/refs/heads/$branch")) { + print STDERR "Could not create branch $branch: $!\n"; + $state=11; + next; + } + print H "$id\n" + or die "Could not write branch $branch: $!"; + close(H) + or die "Could not write branch $branch: $!"; + } + if(($ancestor || $branch) ne $last_branch) { + print "Switching from $last_branch to $branch\n" if $opt_v; + system("git-read-tree", $branch); + die "read-tree failed: $?\n" if $?; + } + $last_branch = $branch if $branch ne $last_branch; + $state = 9; + } elsif($state == 8) { + $logmsg .= "$_\n"; + } elsif($state == 9 and /^\s+(\S+):(INITIAL|\d(?:\.\d+)+)->(\d(?:\.\d+)+)\s*$/) { +# VERSION:1.96->1.96.2.1 + my $init = ($2 eq "INITIAL"); + my $fn = $1; + my $rev = $3; + $fn =~ s#^/+##; + my ($tmpname, $size) = $cvs->file($fn,$rev); + print "".($init ? "New" : "Update")." $fn: $size bytes.\n" if $opt_v; + open my $F, '-|', "git-write-blob $tmpname" + or die "Cannot create object: $!\n"; + my $sha = <$F>; + chomp $sha; + close $F; + unlink($tmpname); + my $mode = pmode($cvs->{'mode'}); + push(@new,[$mode, $sha, $fn]); # may be resurrected! + } elsif($state == 9 and /^\s+(\S+):\d(?:\.\d+)+->(\d(?:\.\d+)+)\(DEAD\)\s*$/) { + my $fn = $1; + $fn =~ s#^/+##; + push(@old,$fn); + } elsif($state == 9 and /^\s*$/) { + $state = 10; + } elsif(($state == 9 or $state == 10) and /^-+$/) { + &$commit(); + $state = 1; + } elsif($state == 11 and /^-+$/) { + $state = 1; + } elsif(/^-+$/) { # end of unknown-line processing + $state = 1; + } elsif($state != 11) { # ignore stuff when skipping + print "* UNKNOWN LINE * $_\n"; + } +} +&$commit() if $branch and $state != 11; + +unlink($git_index); + +if (defined $orig_git_index) { + $ENV{GIT_INDEX_FILE} = $orig_git_index; +} else { + delete $ENV{GIT_INDEX_FILE}; +} + +# Now switch back to the branch we were in before all of this happened +if($orig_branch) { + print "DONE\n" if $opt_v; + system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master") + if $forward_master; + system('git-read-tree', '-m', '-u', 'CVS2GIT_HEAD', 'HEAD'); + die "read-tree failed: $?\n" if $?; +} else { + $orig_branch = "master"; + print "DONE; creating $orig_branch branch\n" if $opt_v; + system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master") + unless -f "$git_dir/refs/heads/master"; + unlink("$git_dir/HEAD"); + symlink("refs/heads/$orig_branch","$git_dir/HEAD"); + system('git checkout'); + die "checkout failed: $?\n" if $?; +} +unlink("$git_dir/CVS2GIT_HEAD"); |