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Diffstat (limited to 'contrib/examples/git-svnimport.perl')
| -rwxr-xr-x | contrib/examples/git-svnimport.perl | 976 |
1 files changed, 0 insertions, 976 deletions
diff --git a/contrib/examples/git-svnimport.perl b/contrib/examples/git-svnimport.perl deleted file mode 100755 index 75a43e23b6..0000000000 --- a/contrib/examples/git-svnimport.perl +++ /dev/null @@ -1,976 +0,0 @@ -#!/usr/bin/perl - -# This tool is copyright (c) 2005, Matthias Urlichs. -# It is released under the Gnu Public License, version 2. -# -# The basic idea is to pull and analyze SVN changes. -# -# 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 strict; -use warnings; -use Getopt::Std; -use File::Copy; -use File::Spec; -use File::Temp qw(tempfile); -use File::Path qw(mkpath); -use File::Basename qw(basename dirname); -use Time::Local; -use IO::Pipe; -use POSIX qw(strftime dup2); -use IPC::Open2; -use SVN::Core; -use SVN::Ra; - -die "Need SVN: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, - $opt_b,$opt_r,$opt_I,$opt_A,$opt_s,$opt_l,$opt_d,$opt_D,$opt_S,$opt_F, - $opt_P,$opt_R); - -sub usage() { - print STDERR <<END; -usage: ${\basename $0} # fetch/update GIT from SVN - [-o branch-for-HEAD] [-h] [-v] [-l max_rev] [-R repack_each_revs] - [-C GIT_repository] [-t tagname] [-T trunkname] [-b branchname] - [-d|-D] [-i] [-u] [-r] [-I ignorefilename] [-s start_chg] - [-m] [-M regex] [-A author_file] [-S] [-F] [-P project_name] [SVN_URL] -END - exit(1); -} - -getopts("A:b:C:dDFhiI:l:mM:o:rs:t:T:SP:R:uv") or usage(); -usage if $opt_h; - -my $tag_name = $opt_t || "tags"; -my $trunk_name = defined $opt_T ? $opt_T : "trunk"; -my $branch_name = $opt_b || "branches"; -my $project_name = $opt_P || ""; -$project_name = "/" . $project_name if ($project_name); -my $repack_after = $opt_R || 1000; -my $root_pool = SVN::Pool->new_default; - -@ARGV == 1 or @ARGV == 2 or usage(); - -$opt_o ||= "origin"; -$opt_s ||= 1; -my $git_tree = $opt_C; -$git_tree ||= "."; - -my $svn_url = $ARGV[0]; -my $svn_dir = $ARGV[1]; - -our @mergerx = (); -if ($opt_m) { - my $branch_esc = quotemeta ($branch_name); - my $trunk_esc = quotemeta ($trunk_name); - @mergerx = - ( - qr!\b(?:merg(?:ed?|ing))\b.*?\b((?:(?<=$branch_esc/)[\w\.\-]+)|(?:$trunk_esc))\b!i, - qr!\b(?:from|of)\W+((?:(?<=$branch_esc/)[\w\.\-]+)|(?:$trunk_esc))\b!i, - qr!\b(?:from|of)\W+(?:the )?([\w\.\-]+)[-\s]branch\b!i - ); -} -if ($opt_M) { - unshift (@mergerx, qr/$opt_M/); -} - -# Absolutize filename now, since we will have chdir'ed by the time we -# get around to opening it. -$opt_A = File::Spec->rel2abs($opt_A) if $opt_A; - -our %users = (); -our $users_file = undef; -sub read_users($) { - $users_file = File::Spec->rel2abs(@_); - die "Cannot open $users_file\n" unless -f $users_file; - open(my $authors,$users_file); - while(<$authors>) { - chomp; - next unless /^(\S+?)\s*=\s*(.+?)\s*<(.+)>\s*$/; - (my $user,my $name,my $email) = ($1,$2,$3); - $users{$user} = [$name,$email]; - } - close($authors); -} - -select(STDERR); $|=1; select(STDOUT); - - -package SVNconn; -# Basic SVN connection. -# We're only interested in connecting and downloading, so ... - -use File::Spec; -use File::Temp qw(tempfile); -use POSIX qw(strftime dup2); -use Fcntl qw(SEEK_SET); - -sub new { - my($what,$repo) = @_; - $what=ref($what) if ref($what); - - my $self = {}; - $self->{'buffer'} = ""; - bless($self,$what); - - $repo =~ s#/+$##; - $self->{'fullrep'} = $repo; - $self->conn(); - - return $self; -} - -sub conn { - my $self = shift; - my $repo = $self->{'fullrep'}; - my $auth = SVN::Core::auth_open ([SVN::Client::get_simple_provider, - SVN::Client::get_ssl_server_trust_file_provider, - SVN::Client::get_username_provider]); - my $s = SVN::Ra->new(url => $repo, auth => $auth, pool => $root_pool); - die "SVN connection to $repo: $!\n" unless defined $s; - $self->{'svn'} = $s; - $self->{'repo'} = $repo; - $self->{'maxrev'} = $s->get_latest_revnum(); -} - -sub file { - my($self,$path,$rev) = @_; - - my ($fh, $name) = tempfile('gitsvn.XXXXXX', - DIR => File::Spec->tmpdir(), UNLINK => 1); - - print "... $rev $path ...\n" if $opt_v; - my (undef, $properties); - $path =~ s#^/*##; - my $subpool = SVN::Pool::new_default_sub; - eval { (undef, $properties) - = $self->{'svn'}->get_file($path,$rev,$fh); }; - if($@) { - return undef if $@ =~ /Attempted to get checksum/; - die $@; - } - my $mode; - if (exists $properties->{'svn:executable'}) { - $mode = '100755'; - } elsif (exists $properties->{'svn:special'}) { - my ($special_content, $filesize); - $filesize = tell $fh; - seek $fh, 0, SEEK_SET; - read $fh, $special_content, $filesize; - if ($special_content =~ s/^link //) { - $mode = '120000'; - seek $fh, 0, SEEK_SET; - truncate $fh, 0; - print $fh $special_content; - } else { - die "unexpected svn:special file encountered"; - } - } else { - $mode = '100644'; - } - close ($fh); - - return ($name, $mode); -} - -sub ignore { - my($self,$path,$rev) = @_; - - print "... $rev $path ...\n" if $opt_v; - $path =~ s#^/*##; - my $subpool = SVN::Pool::new_default_sub; - my (undef,undef,$properties) - = $self->{'svn'}->get_dir($path,$rev,undef); - if (exists $properties->{'svn:ignore'}) { - my ($fh, $name) = tempfile('gitsvn.XXXXXX', - DIR => File::Spec->tmpdir(), - UNLINK => 1); - print $fh $properties->{'svn:ignore'}; - close($fh); - return $name; - } else { - return undef; - } -} - -sub dir_list { - my($self,$path,$rev) = @_; - $path =~ s#^/*##; - my $subpool = SVN::Pool::new_default_sub; - my ($dirents,undef,$properties) - = $self->{'svn'}->get_dir($path,$rev,undef); - return $dirents; -} - -package main; -use URI; - -our $svn = $svn_url; -$svn .= "/$svn_dir" if defined $svn_dir; -my $svn2 = SVNconn->new($svn); -$svn = SVNconn->new($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) = @_; - $d =~ m#(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)# - or die "Unparseable date: $d\n"; - my $y=$1; $y+=1900 if $y<1000; - return timegm($6||0,$5,$4,$3,$2-1,$y); -} - -sub getwd() { - my $pwd = `pwd`; - chomp $pwd; - return $pwd; -} - - -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"; - } - return $sha; -} - - --d $git_tree - or mkdir($git_tree,0777) - or die "Could not create $git_tree: $!"; -chdir($git_tree); - -my $orig_branch = ""; -my $forward_master = 0; -my %branches; - -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; -my $maxnum = 0; -my $last_rev = ""; -my $last_branch; -my $current_rev = $opt_s || 1; -unless(-d $git_dir) { - system("git init"); - die "Cannot init the GIT db at $git_tree: $?\n" if $?; - system("git read-tree --empty"); - 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"; - - -f "$git_dir/svn2git" - or die "'$git_dir/svn2git' does not exist.\n". - "You need that file for incremental imports.\n"; - open(F, "git symbolic-ref HEAD |") or - die "Cannot run git-symbolic-ref: $!\n"; - chomp ($last_branch = <F>); - $last_branch = basename($last_branch); - close(F); - unless($last_branch) { - warn "Cannot read the last branch name: $! -- assuming 'master'\n"; - $last_branch = "master"; - } - $orig_branch = $last_branch; - $last_rev = get_headref($orig_branch, $git_dir); - if (-f "$git_dir/SVN2GIT_HEAD") { - die <<EOM; -SVN2GIT_HEAD exists. -Make sure your working directory corresponds to HEAD and remove SVN2GIT_HEAD. -You may need to run - - git-read-tree -m -u SVN2GIT_HEAD HEAD -EOM - } - system('cp', "$git_dir/HEAD", "$git_dir/SVN2GIT_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_rev); - die "read-tree failed: $?\n" if $?; - - # Get the last import timestamps - open my $B,"<", "$git_dir/svn2git"; - while(<$B>) { - chomp; - my($num,$branch,$ref) = split; - $branches{$branch}{$num} = $ref; - $branches{$branch}{"LAST"} = $ref; - $current_rev = $num+1 if $current_rev <= $num; - } - close($B); -} --d $git_dir - or die "Could not create git subdir ($git_dir).\n"; - -my $default_authors = "$git_dir/svn-authors"; -if ($opt_A) { - read_users($opt_A); - copy($opt_A,$default_authors) or die "Copy failed: $!"; -} else { - read_users($default_authors) if -f $default_authors; -} - -open BRANCHES,">>", "$git_dir/svn2git"; - -sub node_kind($$) { - my ($svnpath, $revision) = @_; - $svnpath =~ s#^/*##; - my $subpool = SVN::Pool::new_default_sub; - my $kind = $svn->{'svn'}->check_path($svnpath,$revision); - return $kind; -} - -sub get_file($$$) { - my($svnpath,$rev,$path) = @_; - - # now get it - my ($name,$mode); - if($opt_d) { - my($req,$res); - - # /svn/!svn/bc/2/django/trunk/django-docs/build.py - my $url=$svn_url->clone(); - $url->path($url->path."/!svn/bc/$rev/$svn_dir$svnpath"); - print "... $path...\n" if $opt_v; - $req = HTTP::Request->new(GET => $url); - $res = $lwp_ua->request($req); - if ($res->is_success) { - my $fh; - ($fh, $name) = tempfile('gitsvn.XXXXXX', - DIR => File::Spec->tmpdir(), UNLINK => 1); - print $fh $res->content; - close($fh) or die "Could not write $name: $!\n"; - } else { - return undef if $res->code == 301; # directory? - die $res->status_line." at $url\n"; - } - $mode = '0644'; # can't obtain mode via direct http request? - } else { - ($name,$mode) = $svn->file("$svnpath",$rev); - return undef unless defined $name; - } - - my $pid = open(my $F, '-|'); - die $! unless defined $pid; - if (!$pid) { - exec("git", "hash-object", "-w", $name) - or die "Cannot create object: $!\n"; - } - my $sha = <$F>; - chomp $sha; - close $F; - unlink $name; - return [$mode, $sha, $path]; -} - -sub get_ignore($$$$$) { - my($new,$old,$rev,$path,$svnpath) = @_; - - return unless $opt_I; - my $name = $svn->ignore("$svnpath",$rev); - if ($path eq '/') { - $path = $opt_I; - } else { - $path = File::Spec->catfile($path,$opt_I); - } - if (defined $name) { - my $pid = open(my $F, '-|'); - die $! unless defined $pid; - if (!$pid) { - exec("git", "hash-object", "-w", $name) - or die "Cannot create object: $!\n"; - } - my $sha = <$F>; - chomp $sha; - close $F; - unlink $name; - push(@$new,['0644',$sha,$path]); - } elsif (defined $old) { - push(@$old,$path); - } -} - -sub project_path($$) -{ - my ($path, $project) = @_; - - $path = "/".$path unless ($path =~ m#^\/#) ; - return $1 if ($path =~ m#^$project\/(.*)$#); - - $path =~ s#\.#\\\.#g; - $path =~ s#\+#\\\+#g; - return "/" if ($project =~ m#^$path.*$#); - - return undef; -} - -sub split_path($$) { - my($rev,$path) = @_; - my $branch; - - if($path =~ s#^/\Q$tag_name\E/([^/]+)/?##) { - $branch = "/$1"; - } elsif($path =~ s#^/\Q$trunk_name\E/?##) { - $branch = "/"; - } elsif($path =~ s#^/\Q$branch_name\E/([^/]+)/?##) { - $branch = $1; - } else { - my %no_error = ( - "/" => 1, - "/$tag_name" => 1, - "/$branch_name" => 1 - ); - print STDERR "$rev: Unrecognized path: $path\n" unless (defined $no_error{$path}); - return () - } - if ($path eq "") { - $path = "/"; - } elsif ($project_name) { - $path = project_path($path, $project_name); - } - return ($branch,$path); -} - -sub branch_rev($$) { - - my ($srcbranch,$uptorev) = @_; - - my $bbranches = $branches{$srcbranch}; - my @revs = reverse sort { ($a eq 'LAST' ? 0 : $a) <=> ($b eq 'LAST' ? 0 : $b) } keys %$bbranches; - my $therev; - foreach my $arev(@revs) { - next if ($arev eq 'LAST'); - if ($arev <= $uptorev) { - $therev = $arev; - last; - } - } - return $therev; -} - -sub expand_svndir($$$); - -sub expand_svndir($$$) -{ - my ($svnpath, $rev, $path) = @_; - my @list; - get_ignore(\@list, undef, $rev, $path, $svnpath); - my $dirents = $svn->dir_list($svnpath, $rev); - foreach my $p(keys %$dirents) { - my $kind = node_kind($svnpath.'/'.$p, $rev); - if ($kind eq $SVN::Node::file) { - my $f = get_file($svnpath.'/'.$p, $rev, $path.'/'.$p); - push(@list, $f) if $f; - } elsif ($kind eq $SVN::Node::dir) { - push(@list, - expand_svndir($svnpath.'/'.$p, $rev, $path.'/'.$p)); - } - } - return @list; -} - -sub copy_path($$$$$$$$) { - # 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,$rev,$node_kind,$new,$parents) = @_; - - my($srcbranch,$srcpath) = split_path($rev,$oldpath); - unless(defined $srcbranch && defined $srcpath) { - print "Path not found when copying from $oldpath @ $rev.\n". - "Will try to copy from original SVN location...\n" - if $opt_v; - push (@$new, expand_svndir($oldpath, $rev, $path)); - return; - } - my $therev = branch_rev($srcbranch, $rev); - my $gitrev = $branches{$srcbranch}{$therev}; - unless($gitrev) { - print STDERR "$newrev:$newbranch: could not find $oldpath \@ $rev\n"; - return; - } - if ($srcbranch ne $newbranch) { - push(@$parents, $branches{$srcbranch}{'LAST'}); - } - print "$newrev:$newbranch:$path: copying from $srcbranch:$srcpath @ $rev\n" if $opt_v; - if ($node_kind eq $SVN::Node::dir) { - $srcpath =~ s#/*$#/#; - } - - my $pid = open my $f,'-|'; - die $! unless defined $pid; - if (!$pid) { - exec("git","ls-tree","-r","-z",$gitrev,$srcpath) - or die $!; - } - local $/ = "\0"; - while(<$f>) { - chomp; - my($m,$p) = split(/\t/,$_,2); - my($mode,$type,$sha1) = split(/ /,$m); - next if $type ne "blob"; - if ($node_kind eq $SVN::Node::dir) { - $p = $path . substr($p,length($srcpath)-1); - } else { - $p = $path; - } - push(@$new,[$mode,$sha1,$p]); - } - close($f) or - print STDERR "$newrev:$newbranch: could not list files in $oldpath \@ $rev\n"; -} - -sub commit { - my($branch, $changed_paths, $revision, $author, $date, $message) = @_; - my($committer_name,$committer_email,$dest); - my($author_name,$author_email); - my(@old,@new,@parents); - - if (not defined $author or $author eq "") { - $committer_name = $committer_email = "unknown"; - } elsif (defined $users_file) { - die "User $author is not listed in $users_file\n" - unless exists $users{$author}; - ($committer_name,$committer_email) = @{$users{$author}}; - } elsif ($author =~ /^(.*?)\s+<(.*)>$/) { - ($committer_name, $committer_email) = ($1, $2); - } else { - $author =~ s/^<(.*)>$/$1/; - $committer_name = $committer_email = $author; - } - - if ($opt_F && $message =~ /From:\s+(.*?)\s+<(.*)>\s*\n/) { - ($author_name, $author_email) = ($1, $2); - print "Author from From: $1 <$2>\n" if ($opt_v);; - } elsif ($opt_S && $message =~ /Signed-off-by:\s+(.*?)\s+<(.*)>\s*\n/) { - ($author_name, $author_email) = ($1, $2); - print "Author from Signed-off-by: $1 <$2>\n" if ($opt_v);; - } else { - $author_name = $committer_name; - $author_email = $committer_email; - } - - $date = pdate($date); - - my $tag; - my $parent; - if($branch eq "/") { # trunk - $parent = $opt_o; - } elsif($branch =~ m#^/(.+)#) { # tag - $tag = 1; - $parent = $1; - } else { # "normal" branch - # nothing to do - $parent = $branch; - } - $dest = $parent; - - my $prev = $changed_paths->{"/"}; - if($prev and $prev->[0] eq "A") { - delete $changed_paths->{"/"}; - my $oldpath = $prev->[1]; - my $rev; - if(defined $oldpath) { - my $p; - ($parent,$p) = split_path($revision,$oldpath); - if(defined $parent) { - if($parent eq "/") { - $parent = $opt_o; - } else { - $parent =~ s#^/##; # if it's a tag - } - } - } else { - $parent = undef; - } - } - - my $rev; - if($revision > $opt_s and defined $parent) { - open(H,'-|',"git","rev-parse","--verify",$parent); - $rev = <H>; - close(H) or do { - print STDERR "$revision: cannot find commit '$parent'!\n"; - return; - }; - chop $rev; - if(length($rev) != 40) { - print STDERR "$revision: cannot find commit '$parent'!\n"; - return; - } - $rev = $branches{($parent eq $opt_o) ? "/" : $parent}{"LAST"}; - if($revision != $opt_s and not $rev) { - print STDERR "$revision: do not know ancestor for '$parent'!\n"; - return; - } - } else { - $rev = undef; - } - -# if($prev and $prev->[0] eq "A") { -# if(not $tag) { -# unless(open(H,"> $git_dir/refs/heads/$branch")) { -# print STDERR "$revision: Could not create branch $branch: $!\n"; -# $state=11; -# next; -# } -# print H "$rev\n" -# or die "Could not write branch $branch: $!"; -# close(H) -# or die "Could not write branch $branch: $!"; -# } -# } - if(not defined $rev) { - unlink($git_index); - } elsif ($rev ne $last_rev) { - print "Switching from $last_rev to $rev ($branch)\n" if $opt_v; - system("git", "read-tree", $rev); - die "read-tree failed for $rev: $?\n" if $?; - $last_rev = $rev; - } - - push (@parents, $rev) if defined $rev; - - 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 ($action->[0] eq "R") { - # refer to a file/tree in an earlier commit - push(@old,$path); # remove any old stuff - } - if(($action->[0] eq "A") || ($action->[0] eq "R")) { - my $node_kind = node_kind($action->[3], $revision); - if ($node_kind eq $SVN::Node::file) { - my $f = get_file($action->[3], - $revision, $path); - if ($f) { - push(@new,$f) if $f; - } else { - my $opath = $action->[3]; - print STDERR "$revision: $branch: could not fetch '$opath'\n"; - } - } elsif ($node_kind eq $SVN::Node::dir) { - if($action->[1]) { - copy_path($revision, $branch, - $path, $action->[1], - $action->[2], $node_kind, - \@new, \@parents); - } else { - get_ignore(\@new, \@old, $revision, - $path, $action->[3]); - } - } - } elsif ($action->[0] eq "D") { - push(@old,$path); - } elsif ($action->[0] eq "M") { - my $node_kind = node_kind($action->[3], $revision); - if ($node_kind eq $SVN::Node::file) { - my $f = get_file($action->[3], - $revision, $path); - push(@new,$f) if $f; - } elsif ($node_kind eq $SVN::Node::dir) { - get_ignore(\@new, \@old, $revision, - $path, $action->[3]); - } - } else { - die "$revision: unknown action '".$action->[0]."' for $path\n"; - } - } - - while(@old) { - my @o1; - if(@old > 55) { - @o1 = splice(@old,0,50); - } else { - @o1 = @old; - @old = (); - } - my $pid = open my $F, "-|"; - die "$!" unless defined $pid; - if (!$pid) { - exec("git", "ls-files", "-z", @o1) or die $!; - } - @o1 = (); - local $/ = "\0"; - while(<$F>) { - chomp; - push(@o1,$_); - } - close($F); - - while(@o1) { - my @o2; - if(@o1 > 55) { - @o2 = splice(@o1,0,50); - } else { - @o2 = @o1; - @o1 = (); - } - 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 $?; - } - - 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 = (); - - # 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 (@parents, $mparent); - print OUT "Merge parent branch: $mparent\n" if $opt_v; - } - } - } - my %seen_parents = (); - my @unique_parents = grep { ! $seen_parents{$_} ++ } @parents; - foreach my $bparent (@unique_parents) { - push @par, '-p', $bparent; - print OUT "Merge parent branch: $bparent\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=$committer_name", - "GIT_COMMITTER_EMAIL=$committer_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//; - $message = "r$revision: $message" if $opt_r; - - 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 $opt_v; - chomp($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 $?; - } - - if (not defined $cid) { - $cid = $branches{"/"}{"LAST"}; - } - - 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/$dest") and - print C ("$cid\n") and - close(C) - or die "Cannot write branch $dest for update: $!\n"; - } - - if ($tag) { - $last_rev = "-" if %$changed_paths; - # the tag was 'complex', i.e. did not refer to a "real" revision - - $dest =~ tr/_/\./ if $opt_u; - - system('git', 'tag', '-f', $dest, $cid) == 0 - or die "Cannot create tag $dest: $!\n"; - - print "Created tag '$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; -} - -sub commit_all { - # Recursive use of the SVN connection does not work - local $svn = $svn2; - - my ($changed_paths, $revision, $author, $date, $message) = @_; - my %p; - while(my($path,$action) = each %$changed_paths) { - $p{$path} = [ $action->action,$action->copyfrom_path, $action->copyfrom_rev, $path ]; - } - $changed_paths = \%p; - - my %done; - my @col; - my $pref; - my $branch; - - while(my($path,$action) = each %$changed_paths) { - ($branch,$path) = split_path($revision,$path); - next if not defined $branch; - next if not defined $path; - $done{$branch}{$path} = $action; - } - while(($branch,$changed_paths) = each %done) { - commit($branch, $changed_paths, $revision, $author, $date, $message); - } -} - -$opt_l = $svn->{'maxrev'} if not defined $opt_l or $opt_l > $svn->{'maxrev'}; - -if ($opt_l < $current_rev) { - print "Up to date: no new revisions to fetch!\n" if $opt_v; - unlink("$git_dir/SVN2GIT_HEAD"); - exit; -} - -print "Processing from $current_rev to $opt_l ...\n" if $opt_v; - -my $from_rev; -my $to_rev = $current_rev - 1; - -my $subpool = SVN::Pool::new_default_sub; -while ($to_rev < $opt_l) { - $subpool->clear; - $from_rev = $to_rev + 1; - $to_rev = $from_rev + $repack_after; - $to_rev = $opt_l if $opt_l < $to_rev; - print "Fetching from $from_rev to $to_rev ...\n" if $opt_v; - $svn->{'svn'}->get_log("",$from_rev,$to_rev,0,1,1,\&commit_all); - my $pid = fork(); - die "Fork: $!\n" unless defined $pid; - unless($pid) { - exec("git", "repack", "-d") - or die "Cannot repack: $!\n"; - } - waitpid($pid, 0); -} - - -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 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) { - system('git', 'read-tree', '-m', '-u', 'SVN2GIT_HEAD', 'HEAD'); - die "read-tree failed: $?\n" if $?; - } -} else { - $orig_branch = "master"; - 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 "$git_dir/refs/heads/master"; - system('git', 'update-ref', 'HEAD', "$orig_branch"); - unless ($opt_i) { - system('git checkout'); - die "checkout failed: $?\n" if $?; - } -} -unlink("$git_dir/SVN2GIT_HEAD"); -close(BRANCHES); |