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;
$SIG{'PIPE'}="IGNORE";
$ENV{'TZ'}="UTC";
-our($opt_h,$opt_o,$opt_v,$opt_d,$opt_p,$opt_C);
+our($opt_h,$opt_o,$opt_v,$opt_k,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i);
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 ]
- [ CVS_module ]
+ [ -o branch-for-HEAD ] [ -h ] [ -v ] [ -d CVSROOT ]
+ [ -p opts-for-cvsps ] [ -C GIT_repository ] [ -z fuzz ]
+ [ -i ] [ -k ] [ CVS_module ]
END
exit(1);
}
-getopts("hqvo:d:p:C:") or usage();
+getopts("hivko:d:p:C:z:") or usage();
usage if $opt_h;
@ARGV <= 1 or usage();
# 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 {
$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-responses ok error Valid-requests Mode M Mbinary E Checked-in Created Updated Merged Removed\n");
$self->{'socketo'}->write("valid-requests\n");
$self->{'socketo'}->flush();
my($self,$fn,$rev) = @_;
$self->{'socketo'}->write("Argument -N\n") or return undef;
$self->{'socketo'}->write("Argument -P\n") or return undef;
- # $self->{'socketo'}->write("Argument -ko\n") or return undef;
- # -ko: Linus' version doesn't use it
+ # -kk: Linus' version doesn't use it - defaults to off
+ if ($opt_k) {
+ $self->{'socketo'}->write("Argument -kk\n") or return undef;
+ }
$self->{'socketo'}->write("Argument -r\n") or return undef;
$self->{'socketo'}->write("Argument $rev\n") or return undef;
$self->{'socketo'}->write("Argument --\n") or return undef;
sub _line {
# Read a line from the server.
# ... except that 'line' may be an entire file. ;-)
- my($self) = @_;
+ my($self, $fh) = @_;
die "Not in lines" unless defined $self->{'lines'};
my $line;
- my $res="";
+ my $res=0;
while(defined($line = $self->readline())) {
# M U gnupg-cvs-rep/AUTHORS
# Updated gnupg-cvs-rep/
chomp $cnt;
die "Duh: Filesize $cnt" if $cnt !~ /^\d+$/;
$line="";
- $res="";
+ $res=0;
while($cnt) {
my $buf;
my $num = $self->{'socketi'}->read($buf,$cnt);
die "Server: Filesize $cnt: $num: $!\n" if not defined $num or $num<=0;
- $res .= $buf;
+ print $fh $buf;
+ $res += $num;
$cnt -= $num;
}
} elsif($line =~ s/^ //) {
- $res .= $line;
+ print $fh $line;
+ $res += length($line);
} elsif($line =~ /^M\b/) {
# output, do nothing
} elsif($line =~ /^Mbinary\b/) {
my $buf;
my $num = $self->{'socketi'}->read($buf,$cnt);
die "S: Mbinary $cnt: $num: $!\n" if not defined $num or $num<=0;
- $res .= $buf;
+ print $fh $buf;
+ $res += $num;
$cnt -= $num;
}
} else {
return $res;
} elsif($line =~ s/^E //) {
# print STDERR "S: $line\n";
+ } elsif($line =~ /^Remove-entry /i) {
+ $line = $self->readline(); # filename
+ $line = $self->readline(); # OK
+ chomp $line;
+ die "Unknown: $line" if $line ne "ok";
+ return -1;
} else {
die "Unknown: $line\n";
}
my($self,$fn,$rev) = @_;
my $res;
- if ($self->_file($fn,$rev)) {
- $res = $self->_line();
- return $res if defined $res;
+ my ($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 $res;
}
+ close ($fh);
- # retry
- $self->conn();
- $self->_file($fn,$rev)
- or die "No file command send\n";
- $res = $self->_line();
- die "No input: $fn $rev\n" unless defined $res;
- return $res;
+ return ($name, $res);
}
return $m;
}
-my $tmpcv = "/var/cache/cvs";
-
sub getwd() {
my $pwd = `pwd`;
chomp $pwd;
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 $?;
$last_branch = $opt_o;
$orig_branch = "";
} else {
- -f "$git_dir/refs/head/$opt_o"
+ -f "$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 = "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");
unless($pid) {
my @opt;
@opt = split(/,/,$opt_p) if defined $opt_p;
- exec("cvsps",@opt,"-x","-A","--cvs-direct",'--root',$opt_d,$cvs_tree);
+ 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: $!\n";
}
}
while(@new) {
my @n2;
- if(@new > 55) {
- @n2 = splice(@new,0,50);
+ if(@new > 12) {
+ @n2 = splice(@new,0,10);
} else {
@n2 = @new;
@new = ();
}
- system("git-update-cache","--add","--",@n2);
+ system("git-update-cache","--add",
+ (map { ('--cacheinfo', @$_) } @n2));
die "Cannot add files: $?\n" if $?;
}
print "Parent ID $parent\n" if $opt_v;
}
- my $pr = IO::Pipe->new();
- my $pw = IO::Pipe->new();
+ 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) {
or die "Error writing to git-commit-tree: $!\n";
$pw->close();
- print "Committed patch $patchset ($branch)\n" if $opt_v;
+ 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";
$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";
+ print "skip patchset $patchset: $date before $branch_date{$branch}\n" if $opt_v;
$state = 11;
next;
}
}
if(($ancestor || $branch) ne $last_branch) {
print "Switching from $last_branch to $branch\n" if $opt_v;
- system("git-read-tree","-m","-u","$last_branch","$branch");
+ system("git-read-tree", $branch);
die "read-tree failed: $?\n" if $?;
}
- if($branch ne $last_branch) {
- unlink("$git_dir/HEAD");
- symlink("refs/heads/$branch","$git_dir/HEAD");
- $last_branch = $branch;
- }
+ $last_branch = $branch if $branch ne $last_branch;
$state = 9;
} elsif($state == 8) {
$logmsg .= "$_\n";
- } elsif($state == 9 and /^\s+(\S+):(INITIAL|\d(?:\.\d+)+)->(\d(?:\.\d+)+)\s*$/) {
+ } elsif($state == 9 and /^\s+(.+?):(INITIAL|\d+(?:\.\d+)+)->(\d+(?:\.\d+)+)\s*$/) {
# VERSION:1.96->1.96.2.1
my $init = ($2 eq "INITIAL");
my $fn = $1;
my $rev = $3;
$fn =~ s#^/+##;
- my $data = $cvs->file($fn,$rev);
- print "".($init ? "New" : "Update")." $fn: ".length($data)." bytes.\n";
- mkpath(dirname($fn),$opt_v);
- open(F,"> ./$fn")
- or die "Cannot create '$fn': $!\n";
- print F $data
- or die "Cannot write to '$fn': $!\n";
- close(F)
- or die "Cannot write to '$fn': $!\n";
- chmod(pmode($cvs->{'mode'}), $fn);
- push(@new,$fn); # may be resurrected!
- } elsif($state == 9 and /^\s+(\S+):\d(?:\.\d+)+->(\d(?:\.\d+)+)\(DEAD\)\s*$/) {
+ my ($tmpname, $size) = $cvs->file($fn,$rev);
+ if($size == -1) {
+ push(@old,$fn);
+ print "Drop $fn\n" if $opt_v;
+ } else {
+ print "".($init ? "New" : "Update")." $fn: $size bytes\n" if $opt_v;
+ open my $F, '-|', "git-hash-object -w $tmpname"
+ or die "Cannot create object: $!\n";
+ my $sha = <$F>;
+ chomp $sha;
+ close $F;
+ my $mode = pmode($cvs->{'mode'});
+ push(@new,[$mode, $sha, $fn]); # may be resurrected!
+ }
+ unlink($tmpname);
+ } elsif($state == 9 and /^\s+(.+?):\d+(?:\.\d+)+->(\d+(?:\.\d+)+)\(DEAD\)\s*$/) {
my $fn = $1;
$fn =~ s#^/+##;
push(@old,$fn);
+ print "Delete $fn\n" if $opt_v;
} elsif($state == 9 and /^\s*$/) {
$state = 10;
} elsif(($state == 9 or $state == 10) and /^-+$/) {
}
&$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; switching back to $orig_branch\n" if $opt_v;
+ 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 $?;
+ }
} 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");
+ unless ($opt_i) {
+ system('git checkout');
+ die "checkout failed: $?\n" if $?;
+ }
}
-
-system("git-read-tree","-m","-u","$last_branch","$orig_branch");
-die "read-tree failed: $?\n" if $?;
-
-unlink("$git_dir/HEAD");
-symlink("refs/heads/$orig_branch","$git_dir/HEAD");
-
+unlink("$git_dir/CVS2GIT_HEAD");