#
# The basic idea is to pull and analyze SVN changes.
#
-# Checking out the files is done by a single long-running CVS connection
-# / server process.
+# Checking out the files is done by a single long-running SVN connection.
#
# The head revision is on branch "origin" by default.
# You can change that with the '-o' option.
use SVN::Core;
use SVN::Ra;
-die "Need CVN:COre 1.2.1 or better" if $SVN::Core::VERSION lt "1.2.1";
+die "Need CVN:Core 1.2.1 or better" if $SVN::Core::VERSION lt "1.2.1";
$SIG{'PIPE'}="IGNORE";
$ENV{'TZ'}="UTC";
-our($opt_h,$opt_o,$opt_v,$opt_u,$opt_C,$opt_i,$opt_m,$opt_M,$opt_t,$opt_T,$opt_b);
+our($opt_h,$opt_o,$opt_v,$opt_u,$opt_C,$opt_i,$opt_m,$opt_M,$opt_t,$opt_T,$opt_b,$opt_s,$opt_l,$opt_d,$opt_D);
sub usage() {
print STDERR <<END;
Usage: ${\basename $0} # fetch/update GIT from CVS
- [-o branch-for-HEAD] [-h] [-v]
+ [-o branch-for-HEAD] [-h] [-v] [-l max_num_changes]
[-C GIT_repository] [-t tagname] [-T trunkname] [-b branchname]
- [-i] [-u] [-s subst] [-m] [-M regex] [SVN_URL]
+ [-d|-D] [-i] [-u] [-s start_chg] [-m] [-M regex] [SVN_URL]
END
exit(1);
}
-getopts("b:C:hivmM:o:t:T:u") or usage();
+getopts("b:C:dDhil:mM:o:s:t:T:uv") or usage();
usage if $opt_h;
my $tag_name = $opt_t || "tags";
my $trunk_name = $opt_T || "trunk";
my $branch_name = $opt_b || "branches";
-@ARGV <= 1 or usage();
+@ARGV == 1 or @ARGV == 2 or usage();
$opt_o ||= "origin";
+$opt_s ||= 1;
+$opt_l = 100 unless defined $opt_l;
my $git_tree = $opt_C;
$git_tree ||= ".";
-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();
-}
+my $svn_url = $ARGV[0];
+my $svn_dir = $ARGV[1];
our @mergerx = ();
if ($opt_m) {
die "SVN connection to $repo: $!\n" unless defined $s;
$self->{'svn'} = $s;
- print STDERR "*** SVN *** $s ***\n";
$self->{'repo'} = $repo;
$self->{'maxrev'} = $s->get_latest_revnum();
}
sub file {
my($self,$path,$rev) = @_;
- my $res;
- my ($fh, $name) = tempfile('gitsvn.XXXXXX',
+ my ($fh, $name) = tempfile('gitsvn.XXXXXX',
DIR => File::Spec->tmpdir(), UNLINK => 1);
print "... $rev $path ...\n" if $opt_v;
- my $s = $self->{'svn'};
- print STDERR "*** GET *** $s ***\n";
- eval { $s->get_file($path,$rev,$fh); };
- if ($@ and $@ !~ /Attempted to get checksum/) {
- # retry
- $self->conn();
- eval { $self->{'svn'}->get_file($path,$rev,$fh); };
- };
- return () if $@ and $@ !~ /Attempted to get checksum/;
- die $@ if $@;
+ eval { $self->{'svn'}->get_file($path,$rev,$fh); };
+ if($@) {
+ return undef if $@ =~ /Attempted to get checksum/;
+ die $@;
+ }
close ($fh);
- return ($name, $res);
+ return $name;
}
-
package main;
+use URI;
-my $svn = SVNconn->new($cvs_tree);
+my $svn = $svn_url;
+$svn .= "/$svn_dir" if defined $svn_dir;
+$svn = SVNconn->new($svn);
+my $lwp_ua;
+if($opt_d or $opt_D) {
+ $svn_url = URI->new($svn_url)->canonical;
+ if($opt_D) {
+ $svn_dir =~ s#/*$#/#;
+ } else {
+ $svn_dir = "";
+ }
+ if ($svn_url->scheme eq "http") {
+ use LWP::UserAgent;
+ $lwp_ua = LWP::UserAgent->new(keep_alive => 1, requests_redirectable => []);
+ } else {
+ print STDERR "Warning: not HTTP; turning off direct file access\n";
+ $opt_d=0;
+ }
+}
sub pdate($) {
my($d) = @_;
sub get_headref($$) {
my $name = shift;
- my $git_dir = shift;
+ my $git_dir = shift;
my $sha;
-
+
if (open(C,"$git_dir/refs/heads/$name")) {
chomp($sha = <C>);
close(C);
my $maxnum = 0;
my $last_rev = "";
my $last_branch;
-my $current_rev = 0;
+my $current_rev = $opt_s-1;
unless(-d $git_dir) {
system("git-init-db");
die "Cannot init the GIT db at $git_tree: $?\n" if $?;
$forward_master =
$opt_o ne 'master' && -f "$git_dir/refs/heads/master" &&
- system('cmp', '-s', "$git_dir/refs/heads/master",
+ system('cmp', '-s', "$git_dir/refs/heads/master",
"$git_dir/refs/heads/$opt_o") == 0;
# populate index
my($num,$branch,$ref) = split;
$branches{$branch}{$num} = $ref;
$branches{$branch}{"LAST"} = $ref;
- $current_rev = $num+1 if $current_rev < $num+1;
+ $current_rev = $num if $current_rev < $num;
}
close($B);
}
open BRANCHES,">>", "$git_dir/svn2git";
-
-## cvsps output:
-#---------------------
-#PatchSet 314
-#Date: 1999/09/18 13:03:59
-#Author: wkoch
-#Branch: STABLE-BRANCH-1-0
-#Ancestor branch: HEAD
-#Tag: (none)
-#Log:
-# See ChangeLog: Sat Sep 18 13:03:28 CEST 1999 Werner Koch
-#Members:
-# README:1.57->1.57.2.1
-# VERSION:1.96->1.96.2.1
-#
-#---------------------
-
-my $state = 0;
-
sub get_file($$$) {
my($rev,$branch,$path) = @_;
my $svnpath;
$path = "" if $path eq "/"; # this should not happen, but ...
if($branch eq "/") {
- $svnpath = "/$trunk_name/$path";
+ $svnpath = "$trunk_name/$path";
} elsif($branch =~ m#^/#) {
- $svnpath = "/$tag_name$branch/$path";
+ $svnpath = "$tag_name$branch/$path";
} else {
- $svnpath = "/$branch_name/$branch/$path";
+ $svnpath = "$branch_name/$branch/$path";
}
# now get it
- my ($name, $res) = eval { $svn->file($svnpath,$rev); };
- return () unless defined $name;
+ my $name;
+ if($opt_d) {
+ my($req,$res);
+
+ # /svn/!svn/bc/2/django/trunk/django-docs/build.py
+ my $url=$svn_url->clone();
+ $url->path($url->path."/!svn/bc/$rev/$svn_dir$svnpath");
+ print "... $path...\n" if $opt_v;
+ $req = HTTP::Request->new(GET => $url);
+ $res = $lwp_ua->request($req);
+ if ($res->is_success) {
+ my $fh;
+ ($fh, $name) = tempfile('gitsvn.XXXXXX',
+ DIR => File::Spec->tmpdir(), UNLINK => 1);
+ print $fh $res->content;
+ close($fh) or die "Could not write $name: $!\n";
+ } else {
+ return undef if $res->code == 301; # directory?
+ die $res->status_line." at $url\n";
+ }
+ } else {
+ $name = $svn->file("/$svnpath",$rev);
+ return undef unless defined $name;
+ }
open my $F, '-|', "git-hash-object", "-w", $name
or die "Cannot create object: $!\n";
my $sha = <$F>;
chomp $sha;
close $F;
+ unlink $name;
my $mode = "0644"; # SV does not seem to store any file modes
return [$mode, $sha, $path];
}
return ($branch,$path);
}
+sub copy_subdir($$$$$$) {
+ # Somebody copied a whole subdirectory.
+ # We need to find the index entries from the old version which the
+ # SVN log entry points to, and add them to the new place.
+
+ my($newrev,$newbranch,$path,$oldpath,$rev,$new) = @_;
+ my($branch,$srcpath) = split_path($rev,$oldpath);
+
+ my $gitrev = $branches{$branch}{$rev};
+ unless($gitrev) {
+ print STDERR "$newrev:$newbranch: could not find $oldpath \@ $rev\n";
+ return;
+ }
+ print "$newrev:$newbranch:$path: copying from $branch:$srcpath @ $rev\n" if $opt_v;
+ $srcpath =~ s#/*$#/#;
+ open my $f,"-|","git-ls-tree","-r","-z",$gitrev,$srcpath;
+ local $/ = "\0";
+ while(<$f>) {
+ chomp;
+ my($m,$p) = split(/\t/,$_,2);
+ my($mode,$type,$sha1) = split(/ /,$m);
+ next if $type ne "blob";
+ $p = substr($p,length($srcpath)-1);
+ print "... found $path$p ...\n" if $opt_v;
+ push(@$new,[$mode,$sha1,$path.$p]);
+ }
+ close($f) or
+ print STDERR "$newrev:$newbranch: could not list files in $oldpath \@ $rev\n";
+}
+
sub commit {
my($branch, $changed_paths, $revision, $author, $date, $message) = @_;
my($author_name,$author_email,$dest);
}
my $rev;
- if(defined $parent) {
+ if($revision > $opt_s and defined $parent) {
open(H,"git-rev-parse --verify $parent |");
$rev = <H>;
close(H) or do {
return;
}
$rev = $branches{($parent eq $opt_o) ? "/" : $parent}{"LAST"};
- if($revision != 1 and not $rev) {
+ if($revision != $opt_s and not $rev) {
print STDERR "$revision: do not know ancestor for '$parent'!\n";
return;
}
$last_rev = $rev;
}
- while(my($path,$action) = each %$changed_paths) {
- if ($action->[0] eq "A") {
- my $f = get_file($revision,$branch,$path);
- push(@new,$f) if $f;
- } elsif ($action->[0] eq "D") {
- push(@old,$path);
- } elsif ($action->[0] eq "M") {
- my $f = get_file($revision,$branch,$path);
- push(@new,$f) if $f;
- } elsif ($action->[0] eq "R") {
- # refer to a file/tree in an earlier commit
- push(@old,$path); # remove any old stuff
-
- # ... and add any new stuff
- my($b,$p) = split_path($revision,$action->[1]);
- open my $F,"-|","git-ls-tree","-r","-z", $branches{$b}{$action->[2]}, $p;
- local $/ = '\0';
- while(<$F>) {
- chomp;
- my($m,$p) = split(/\t/,$_,2);
- my($mode,$type,$sha1) = split(/ /,$m);
- next if $type ne "blob";
- push(@new,[$mode,$sha1,$p]);
+ my $cid;
+ if($tag and not %$changed_paths) {
+ $cid = $rev;
+ } else {
+ my @paths = sort keys %$changed_paths;
+ foreach my $path(@paths) {
+ my $action = $changed_paths->{$path};
+
+ if ($action->[0] eq "A") {
+ my $f = get_file($revision,$branch,$path);
+ if($f) {
+ push(@new,$f) if $f;
+ } elsif($action->[1]) {
+ copy_subdir($revision,$branch,$path,$action->[1],$action->[2],\@new);
+ } else {
+ my $opath = $action->[3];
+ print STDERR "$revision: $branch: could not fetch '$opath'\n";
+ }
+ } elsif ($action->[0] eq "D") {
+ push(@old,$path);
+ } elsif ($action->[0] eq "M") {
+ my $f = get_file($revision,$branch,$path);
+ push(@new,$f) if $f;
+ } elsif ($action->[0] eq "R") {
+ # refer to a file/tree in an earlier commit
+ push(@old,$path); # remove any old stuff
+
+ # ... and add any new stuff
+ my($b,$srcpath) = split_path($revision,$action->[1]);
+ $srcpath =~ s#/*$#/#;
+ open my $F,"-|","git-ls-tree","-r","-z", $branches{$b}{$action->[2]}, $srcpath;
+ local $/ = "\0";
+ while(<$F>) {
+ chomp;
+ my($m,$p) = split(/\t/,$_,2);
+ my($mode,$type,$sha1) = split(/ /,$m);
+ next if $type ne "blob";
+ $p = substr($p,length($srcpath)-1);
+ push(@new,[$mode,$sha1,$path.$p]);
+ }
+ close($F);
+ } else {
+ die "$revision: unknown action '".$action->[0]."' for $path\n";
}
- } else {
- die "$revision: unknown action '".$action->[0]."' for $path\n";
}
- }
- if(@old) {
- open my $F, "-│", "git-ls-files", "-z", @old or die $!;
- @old = ();
- local $/ = '\0';
- while(<$F>) {
- chomp;
- push(@old,$_);
+ if(@old) {
+ open my $F, "-|", "git-ls-files", "-z", @old or die $!;
+ @old = ();
+ local $/ = "\0";
+ while(<$F>) {
+ chomp;
+ push(@old,$_);
+ }
+ close($F);
+
+ 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 $?;
+ }
}
- close($F);
-
- while(@old) {
- my @o2;
- if(@old > 55) {
- @o2 = splice(@old,0,50);
+ while(@new) {
+ my @n2;
+ if(@new > 12) {
+ @n2 = splice(@new,0,10);
} else {
- @o2 = @old;
- @old = ();
+ @n2 = @new;
+ @new = ();
}
- system("git-update-index","--force-remove","--",@o2);
- die "Cannot remove files: $?\n" if $?;
+ system("git-update-index","--add",
+ (map { ('--cacheinfo', @$_) } @n2));
+ die "Cannot add 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 $?;
- }
-
- my $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 $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();
- $pw->close();
- my @par = ();
- @par = ("-p",$rev) if defined $rev;
-
- # loose detection of merges
- # based on the commit msg
- foreach my $rx (@mergerx) {
- if ($message =~ $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 $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 $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();
+ $pw->close();
+
+ my @par = ();
+ @par = ("-p",$rev) if defined $rev;
+
+ # loose detection of merges
+ # based on the commit msg
+ foreach my $rx (@mergerx) {
+ if ($message =~ $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 $opt_v;
+ }
+ }
+ }
- exec("env",
- "GIT_AUTHOR_NAME=$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();
- $pr->reader();
+ exec("env",
+ "GIT_AUTHOR_NAME=$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();
- $message =~ s/[\s\n]+\z//;
+ $message =~ s/[\s\n]+\z//;
- print $pw "$message\n"
- or die "Error writing to git-commit-tree: $!\n";
- $pw->close();
+ print $pw "$message\n"
+ or die "Error writing to git-commit-tree: $!\n";
+ $pw->close();
- print "Committed change $revision:$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 "Commit ID $cid\n" if $opt_v;
- $pr->close();
+ print "Committed change $revision:$branch ".strftime("%Y-%m-%d %H:%M:%S",gmtime($date)).")\n" if $opt_v;
+ chomp($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 $?;
+ waitpid($pid,0);
+ die "Error running git-commit-tree: $?\n" if $?;
+ }
- if(defined $dest) {
+ if(not defined $dest) {
+ print "... no known parent\n" if $opt_v;
+ } elsif(not $tag) {
print "Writing to refs/heads/$dest\n" if $opt_v;
- open(C,">$git_dir/refs/heads/$dest") and
+ open(C,">$git_dir/refs/heads/$dest") and
print C ("$cid\n") and
close(C)
or die "Cannot write branch $dest for update: $!\n";
- } else {
- print "... no known parent\n" if $opt_v;
}
- $branches{$branch}{"LAST"} = $cid;
- $branches{$branch}{$revision} = $cid;
- $last_rev = $cid;
- print BRANCHES "$revision $branch $cid\n";
- print "DONE: $revision $dest $cid\n" if $opt_v;
if($tag) {
my($in, $out) = ('','');
$last_rev = "-" if %$changed_paths;
# the tag was 'complex', i.e. did not refer to a "real" revision
-
- $tag =~ tr/_/\./ if $opt_u;
+
+ $dest =~ tr/_/\./ if $opt_u;
my $pid = open2($in, $out, 'git-mktag');
print $out ("object $cid\n".
"type commit\n".
- "tag $tag\n".
+ "tag $dest\n".
"tagger $author_name <$author_email>\n") and
close($out)
- or die "Cannot create tag object $tag: $!\n";
+ or die "Cannot create tag object $dest: $!\n";
my $tagobj = <$in>;
chomp $tagobj;
if ( !close($in) or waitpid($pid, 0) != $pid or
$? != 0 or $tagobj !~ /^[0123456789abcdef]{40}$/ ) {
- die "Cannot create tag object $tag: $!\n";
+ die "Cannot create tag object $dest: $!\n";
}
-
- open(C,">$git_dir/refs/tags/$tag")
- or die "Cannot create tag $tag: $!\n";
- print C "$tagobj\n"
- or die "Cannot write tag $tag: $!\n";
+ open(C,">$git_dir/refs/tags/$dest") and
+ print C ("$tagobj\n") and
close(C)
- or die "Cannot write tag $tag: $!\n";
+ or die "Cannot create tag $branch: $!\n";
- print "Created tag '$tag' on '$branch'\n" if $opt_v;
+ print "Created tag '$dest' on '$branch'\n" if $opt_v;
}
+ $branches{$branch}{"LAST"} = $cid;
+ $branches{$branch}{$revision} = $cid;
+ $last_rev = $cid;
+ print BRANCHES "$revision $branch $cid\n";
+ print "DONE: $revision $dest $cid\n" if $opt_v;
}
my ($changed_paths, $revision, $author, $date, $message, $pool) = @_;
($changed_paths, $revision, $author, $date, $message, $pool) = @_;
my %p;
while(my($path,$action) = each %$changed_paths) {
- $p{$path} = [ $action->action,$action->copyfrom_path, $action->copyfrom_rev ];
+ $p{$path} = [ $action->action,$action->copyfrom_path, $action->copyfrom_rev, $path ];
}
$changed_paths = \%p;
}
}
}
-while(++$current_rev < $svn->{'maxrev'}) {
+while(++$current_rev <= $svn->{'maxrev'}) {
$svn->{'svn'}->get_log("/",$current_rev,$current_rev,$current_rev,1,1,\&_commit_all,"");
commit_all();
+ if($opt_l and not --$opt_l) {
+ print STDERR "Stopping, because there is a memory leak (in the SVN library).\n";
+ print STDERR "Please repeat this command; it will continue safely\n";
+ last;
+ }
}
# Now switch back to the branch we were in before all of this happened
if($orig_branch) {
- print "DONE\n" if $opt_v;
+ print "DONE\n" if $opt_v and (not defined $opt_l or $opt_l > 0);
system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
if $forward_master;
unless ($opt_i) {
}
} else {
$orig_branch = "master";
- print "DONE; creating $orig_branch branch\n" if $opt_v;
+ print "DONE; creating $orig_branch branch\n" if $opt_v and (not defined $opt_l or $opt_l > 0);
system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
unless -f "$git_dir/refs/heads/master";
unlink("$git_dir/HEAD");
projects / git.git / blobdiff