use Time::Local;
use IO::Socket;
use IO::Pipe;
-use POSIX qw(strftime dup2);
+use POSIX qw(strftime dup2 :errno_h);
use IPC::Open2;
$SIG{'PIPE'}="IGNORE";
$ENV{'TZ'}="UTC";
-our($opt_h,$opt_o,$opt_v,$opt_k,$opt_u,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_P, $opt_s,$opt_m,$opt_M,$opt_A,$opt_S);
+our($opt_h,$opt_o,$opt_v,$opt_k,$opt_u,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_P, $opt_s,$opt_m,$opt_M,$opt_A,$opt_S,$opt_L);
my (%conv_author_name, %conv_author_email);
sub usage() {
close ($f);
}
-getopts("hivmkuo:d:p:C:z:s:M:P:A:S:") or usage();
+getopts("hivmkuo:d:p:C:z:s:M:P:A:S:L:") or usage();
usage if $opt_h;
@ARGV <= 1 or usage();
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;
- }
+ $res = $self->_fetchfile($fh, $cnt);
} elsif($line =~ s/^ //) {
print $fh $line;
$res += length($line);
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;
- }
+ $res += $self->_fetchfile($fh, $cnt);
} else {
chomp $line;
if($line eq "ok") {
return $res;
} elsif($line =~ s/^E //) {
# print STDERR "S: $line\n";
- } elsif($line =~ /^Remove-entry /i) {
+ } elsif($line =~ /^(Remove-entry|Removed) /i) {
$line = $self->readline(); # filename
$line = $self->readline(); # OK
chomp $line;
return ($name, $res);
}
+sub _fetchfile {
+ my ($self, $fh, $cnt) = @_;
+ my $res = 0;
+ my $bufsize = 1024 * 1024;
+ while($cnt) {
+ if ($bufsize > $cnt) {
+ $bufsize = $cnt;
+ }
+ my $buf;
+ my $num = $self->{'socketi'}->read($buf,$bufsize);
+ die "Server: Filesize $cnt: $num: $!\n" if not defined $num or $num<=0;
+ print $fh $buf;
+ $res += $num;
+ $cnt -= $num;
+ }
+ return $res;
+}
package main;
return $pwd;
}
+sub is_sha1 {
+ my $s = shift;
+ return $s =~ /^[a-f0-9]{40}$/;
+}
-sub get_headref($$) {
+sub get_headref ($$) {
my $name = shift;
my $git_dir = shift;
- my $sha;
- if (open(C,"$git_dir/refs/heads/$name")) {
- chomp($sha = <C>);
- close(C);
- length($sha) == 40
- or die "Cannot get head id for $name ($sha): $!\n";
+ my $f = "$git_dir/refs/heads/$name";
+ if(open(my $fh, $f)) {
+ chomp(my $r = <$fh>);
+ is_sha1($r) or die "Cannot get head id for $name ($r): $!";
+ return $r;
}
- return $sha;
+ die "unable to open $f: $!" unless $! == POSIX::ENOENT;
+ return undef;
}
-
-d $git_tree
or mkdir($git_tree,0777)
or die "Could not create $git_tree: $!";
my $last_branch = "";
my $orig_branch = "";
-my $forward_master = 0;
my %branch_date;
+my $tip_at_start = undef;
my $git_dir = $ENV{"GIT_DIR"} || ".git";
$git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#;
$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;
+ $tip_at_start = `git-rev-parse --verify HEAD`;
# populate index
system('git-read-tree', $last_branch);
my $state = 0;
-my($patchset,$date,$author_name,$author_email,$branch,$ancestor,$tag,$logmsg);
-my(@old,@new,@skipped);
-my $commit = sub {
- my $pid;
- while(@old) {
- my @o2;
- if(@old > 55) {
- @o2 = splice(@old,0,50);
- } else {
- @o2 = @old;
- @old = ();
- }
- system("git-update-index","--force-remove","--",@o2);
- die "Cannot remove files: $?\n" if $?;
- }
- while(@new) {
- my @n2;
- if(@new > 12) {
- @n2 = splice(@new,0,10);
- } else {
- @n2 = @new;
- @new = ();
- }
- system("git-update-index","--add",
- (map { ('--cacheinfo', @$_) } @n2));
- die "Cannot add files: $?\n" if $?;
- }
+sub update_index (\@\@) {
+ my $old = shift;
+ my $new = shift;
+ open(my $fh, '|-', qw(git-update-index -z --index-info))
+ or die "unable to open git-update-index: $!";
+ print $fh
+ (map { "0 0000000000000000000000000000000000000000\t$_\0" }
+ @$old),
+ (map { '100' . sprintf('%o', $_->[0]) . " $_->[1]\t$_->[2]\0" }
+ @$new)
+ or die "unable to write to git-update-index: $!";
+ close $fh
+ or die "unable to write to git-update-index: $!";
+ $? and die "git-update-index reported error: $?";
+}
- $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)
+sub write_tree () {
+ open(my $fh, '-|', qw(git-write-tree))
+ or die "unable to open git-write-tree: $!";
+ chomp(my $tree = <$fh>);
+ is_sha1($tree)
+ or die "Cannot get tree id ($tree): $!";
+ close($fh)
or die "Error running git-write-tree: $?\n";
print "Tree ID $tree\n" if $opt_v;
+ return $tree;
+}
- 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();
- $pw->reader();
- open(OUT,">&STDOUT");
- dup2($pw->fileno(),0);
- dup2($pr->fileno(),1);
- $pr->close();
- $pw->close();
-
- my @par = ();
- @par = ("-p",$parent) if $parent;
-
- # loose detection of merges
- # based on the commit msg
- foreach my $rx (@mergerx) {
- if ($logmsg =~ $rx) {
- my $mparent = $1;
- if ($mparent eq 'HEAD') { $mparent = $opt_o };
- if ( -e "$git_dir/refs/heads/$mparent") {
- $mparent = get_headref($mparent, $git_dir);
- push @par, '-p', $mparent;
- print OUT "Merge parent branch: $mparent\n" if $opt_v;
- }
- }
+my($patchset,$date,$author_name,$author_email,$branch,$ancestor,$tag,$logmsg);
+my(@old,@new,@skipped);
+sub commit {
+ update_index(@old, @new);
+ @old = @new = ();
+ my $tree = write_tree();
+ my $parent = get_headref($last_branch, $git_dir);
+ print "Parent ID " . ($parent ? $parent : "(empty)") . "\n" if $opt_v;
+
+ my @commit_args;
+ push @commit_args, ("-p", $parent) if $parent;
+
+ # loose detection of merges
+ # based on the commit msg
+ foreach my $rx (@mergerx) {
+ next unless $logmsg =~ $rx && $1;
+ my $mparent = $1 eq 'HEAD' ? $opt_o : $1;
+ if(my $sha1 = get_headref($mparent, $git_dir)) {
+ push @commit_args, '-p', $mparent;
+ print "Merge parent branch: $mparent\n" if $opt_v;
}
-
- exec("env",
- "GIT_AUTHOR_NAME=$author_name",
- "GIT_AUTHOR_EMAIL=$author_email",
- "GIT_AUTHOR_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
- "GIT_COMMITTER_NAME=$author_name",
- "GIT_COMMITTER_EMAIL=$author_email",
- "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();
+
+ my $commit_date = strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date));
+ my $pid = open2(my $commit_read, my $commit_write,
+ 'env',
+ "GIT_AUTHOR_NAME=$author_name",
+ "GIT_AUTHOR_EMAIL=$author_email",
+ "GIT_AUTHOR_DATE=$commit_date",
+ "GIT_COMMITTER_NAME=$author_name",
+ "GIT_COMMITTER_EMAIL=$author_email",
+ "GIT_COMMITTER_DATE=$commit_date",
+ 'git-commit-tree', $tree, @commit_args);
# compatibility with git2cvs
substr($logmsg,32767) = "" if length($logmsg) > 32767;
if (@skipped) {
$logmsg .= "\n\n\nSKIPPED:\n\t";
$logmsg .= join("\n\t", @skipped) . "\n";
+ @skipped = ();
}
- print $pw "$logmsg\n"
+ print($commit_write "$logmsg\n") && close($commit_write)
or die "Error writing to git-commit-tree: $!\n";
- $pw->close();
- print "Committed patch $patchset ($branch ".strftime("%Y-%m-%d %H:%M:%S",gmtime($date)).")\n" if $opt_v;
- chomp(my $cid = <$pr>);
- length($cid) == 40
- or die "Cannot get commit id ($cid): $!\n";
+ print "Committed patch $patchset ($branch $commit_date)\n" if $opt_v;
+ chomp(my $cid = <$commit_read>);
+ is_sha1($cid) or die "Cannot get commit id ($cid): $!\n";
print "Commit ID $cid\n" if $opt_v;
- $pr->close();
+ close($commit_read);
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: $!\n";
- close(C)
+ system("git-update-ref refs/heads/$branch $cid") == 0
or die "Cannot write branch $branch for update: $!\n";
if($tag) {
}
};
+my $commitcount = 1;
while(<CVS>) {
chomp;
if($state == 0 and /^-+$/) {
} elsif($state == 9 and /^\s*$/) {
$state = 10;
} elsif(($state == 9 or $state == 10) and /^-+$/) {
- &$commit();
+ $commitcount++;
+ if ($opt_L && $commitcount > $opt_L) {
+ last;
+ }
+ commit();
+ if (($commitcount & 1023) == 0) {
+ system("git repack -a -d");
+ }
$state = 1;
} elsif($state == 11 and /^-+$/) {
$state = 1;
print "* UNKNOWN LINE * $_\n";
}
}
-&$commit() if $branch and $state != 11;
+commit() if $branch and $state != 11;
unlink($git_index);
# 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 $forward_master;
- unless ($opt_i) {
- system('git-read-tree', '-m', '-u', 'CVS2GIT_HEAD', 'HEAD');
- die "read-tree failed: $?\n" if $?;
+ print "DONE.\n" if $opt_v;
+ if ($opt_i) {
+ exit 0;
+ }
+ my $tip_at_end = `git-rev-parse --verify HEAD`;
+ if ($tip_at_start ne $tip_at_end) {
+ for ($tip_at_start, $tip_at_end) { chomp; }
+ print "Fetched into the current branch.\n" if $opt_v;
+ system(qw(git-read-tree -u -m),
+ $tip_at_start, $tip_at_end);
+ die "Fast-forward update failed: $?\n" if $?;
+ }
+ else {
+ system(qw(git-merge cvsimport HEAD), "refs/heads/$opt_o");
+ die "Could not merge $opt_o into the current branch.\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")
+ system("git-update-ref", "refs/heads/master", "refs/heads/$opt_o")
unless -f "$git_dir/refs/heads/master";
system('git-update-ref', 'HEAD', "$orig_branch");
unless ($opt_i) {
die "checkout failed: $?\n" if $?;
}
}
-unlink("$git_dir/CVS2GIT_HEAD");