1#!/usr/bin/perl -w
2# This tool is copyright (c) 2005, Matthias Urlichs.
4# It is released under the Gnu Public License, version 2.
5#
6# The basic idea is to pull and analyze SVN changes.
7#
8# Checking out the files is done by a single long-running SVN connection.
9#
10# The head revision is on branch "origin" by default.
11# You can change that with the '-o' option.
12use strict;
14use warnings;
15use Getopt::Std;
16use File::Spec;
17use File::Temp qw(tempfile);
18use File::Path qw(mkpath);
19use File::Basename qw(basename dirname);
20use Time::Local;
21use IO::Pipe;
22use POSIX qw(strftime dup2);
23use IPC::Open2;
24use SVN::Core;
25use SVN::Ra;
26die "Need SVN:Core 1.2.1 or better" if $SVN::Core::VERSION lt "1.2.1";
28$SIG{'PIPE'}="IGNORE";
30$ENV{'TZ'}="UTC";
31our($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_s,$opt_l,$opt_d,$opt_D);
33sub usage() {
35 print STDERR <<END;
36Usage: ${\basename $0} # fetch/update GIT from SVN
37 [-o branch-for-HEAD] [-h] [-v] [-l max_rev]
38 [-C GIT_repository] [-t tagname] [-T trunkname] [-b branchname]
39 [-d|-D] [-i] [-u] [-r] [-s start_chg] [-m] [-M regex] [SVN_URL]
40END
41 exit(1);
42}
43getopts("b:C:dDhil:mM:o:rs:t:T:uv") or usage();
45usage if $opt_h;
46my $tag_name = $opt_t || "tags";
48my $trunk_name = $opt_T || "trunk";
49my $branch_name = $opt_b || "branches";
50@ARGV == 1 or @ARGV == 2 or usage();
52$opt_o ||= "origin";
54$opt_s ||= 1;
55my $git_tree = $opt_C;
56$git_tree ||= ".";
57my $svn_url = $ARGV[0];
59my $svn_dir = $ARGV[1];
60our @mergerx = ();
62if ($opt_m) {
63 @mergerx = ( qr/\W(?:from|of|merge|merging|merged) (\w+)/i );
64}
65if ($opt_M) {
66 push (@mergerx, qr/$opt_M/);
67}
68select(STDERR); $|=1; select(STDOUT);
70package SVNconn;
73# Basic SVN connection.
74# We're only interested in connecting and downloading, so ...
75use File::Spec;
77use File::Temp qw(tempfile);
78use POSIX qw(strftime dup2);
79sub new {
81 my($what,$repo) = @_;
82 $what=ref($what) if ref($what);
83 my $self = {};
85 $self->{'buffer'} = "";
86 bless($self,$what);
87 $repo =~ s#/+$##;
89 $self->{'fullrep'} = $repo;
90 $self->conn();
91 return $self;
93}
94sub conn {
96 my $self = shift;
97 my $repo = $self->{'fullrep'};
98 my $auth = SVN::Core::auth_open ([SVN::Client::get_simple_provider,
99 SVN::Client::get_ssl_server_trust_file_provider,
100 SVN::Client::get_username_provider]);
101 my $s = SVN::Ra->new(url => $repo, auth => $auth);
102 die "SVN connection to $repo: $!\n" unless defined $s;
103 $self->{'svn'} = $s;
104 $self->{'repo'} = $repo;
105 $self->{'maxrev'} = $s->get_latest_revnum();
106}
107sub file {
109 my($self,$path,$rev) = @_;
110 my ($fh, $name) = tempfile('gitsvn.XXXXXX',
112 DIR => File::Spec->tmpdir(), UNLINK => 1);
113 print "... $rev $path ...\n" if $opt_v;
115 my (undef, $properties);
116 eval { (undef, $properties)
117 = $self->{'svn'}->get_file($path,$rev,$fh); };
118 if($@) {
119 return undef if $@ =~ /Attempted to get checksum/;
120 die $@;
121 }
122 my $mode;
123 if (exists $properties->{'svn:executable'}) {
124 $mode = '0755';
125 } else {
126 $mode = '0644';
127 }
128 close ($fh);
129 return ($name, $mode);
131}
132package main;
134use URI;
135our $svn = $svn_url;
137$svn .= "/$svn_dir" if defined $svn_dir;
138my $svn2 = SVNconn->new($svn);
139$svn = SVNconn->new($svn);
140my $lwp_ua;
142if($opt_d or $opt_D) {
143 $svn_url = URI->new($svn_url)->canonical;
144 if($opt_D) {
145 $svn_dir =~ s#/*$#/#;
146 } else {
147 $svn_dir = "";
148 }
149 if ($svn_url->scheme eq "http") {
150 use LWP::UserAgent;
151 $lwp_ua = LWP::UserAgent->new(keep_alive => 1, requests_redirectable => []);
152 } else {
153 print STDERR "Warning: not HTTP; turning off direct file access\n";
154 $opt_d=0;
155 }
156}
157sub pdate($) {
159 my($d) = @_;
160 $d =~ m#(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)#
161 or die "Unparseable date: $d\n";
162 my $y=$1; $y-=1900 if $y>1900;
163 return timegm($6||0,$5,$4,$3,$2-1,$y);
164}
165sub getwd() {
167 my $pwd = `pwd`;
168 chomp $pwd;
169 return $pwd;
170}
171sub get_headref($$) {
174 my $name = shift;
175 my $git_dir = shift;
176 my $sha;
177 if (open(C,"$git_dir/refs/heads/$name")) {
179 chomp($sha = <C>);
180 close(C);
181 length($sha) == 40
182 or die "Cannot get head id for $name ($sha): $!\n";
183 }
184 return $sha;
185}
186-d $git_tree
189 or mkdir($git_tree,0777)
190 or die "Could not create $git_tree: $!";
191chdir($git_tree);
192my $orig_branch = "";
194my $forward_master = 0;
195my %branches;
196my $git_dir = $ENV{"GIT_DIR"} || ".git";
198$git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#;
199$ENV{"GIT_DIR"} = $git_dir;
200my $orig_git_index;
201$orig_git_index = $ENV{GIT_INDEX_FILE} if exists $ENV{GIT_INDEX_FILE};
202my ($git_ih, $git_index) = tempfile('gitXXXXXX', SUFFIX => '.idx',
203 DIR => File::Spec->tmpdir());
204close ($git_ih);
205$ENV{GIT_INDEX_FILE} = $git_index;
206my $maxnum = 0;
207my $last_rev = "";
208my $last_branch;
209my $current_rev = $opt_s || 1;
210unless(-d $git_dir) {
211 system("git-init-db");
212 die "Cannot init the GIT db at $git_tree: $?\n" if $?;
213 system("git-read-tree");
214 die "Cannot init an empty tree: $?\n" if $?;
215 $last_branch = $opt_o;
217 $orig_branch = "";
218} else {
219 -f "$git_dir/refs/heads/$opt_o"
220 or die "Branch '$opt_o' does not exist.\n".
221 "Either use the correct '-o branch' option,\n".
222 "or import to a new repository.\n";
223 -f "$git_dir/svn2git"
225 or die "'$git_dir/svn2git' does not exist.\n".
226 "You need that file for incremental imports.\n";
227 open(F, "git-symbolic-ref HEAD |") or
228 die "Cannot run git-symbolic-ref: $!\n";
229 chomp ($last_branch = <F>);
230 $last_branch = basename($last_branch);
231 close(F);
232 unless($last_branch) {
233 warn "Cannot read the last branch name: $! -- assuming 'master'\n";
234 $last_branch = "master";
235 }
236 $orig_branch = $last_branch;
237 $last_rev = get_headref($orig_branch, $git_dir);
238 if (-f "$git_dir/SVN2GIT_HEAD") {
239 die <<EOM;
240SVN2GIT_HEAD exists.
241Make sure your working directory corresponds to HEAD and remove SVN2GIT_HEAD.
242You may need to run
243 git-read-tree -m -u SVN2GIT_HEAD HEAD
245EOM
246 }
247 system('cp', "$git_dir/HEAD", "$git_dir/SVN2GIT_HEAD");
248 $forward_master =
250 $opt_o ne 'master' && -f "$git_dir/refs/heads/master" &&
251 system('cmp', '-s', "$git_dir/refs/heads/master",
252 "$git_dir/refs/heads/$opt_o") == 0;
253 # populate index
255 system('git-read-tree', $last_rev);
256 die "read-tree failed: $?\n" if $?;
257 # Get the last import timestamps
259 open my $B,"<", "$git_dir/svn2git";
260 while(<$B>) {
261 chomp;
262 my($num,$branch,$ref) = split;
263 $branches{$branch}{$num} = $ref;
264 $branches{$branch}{"LAST"} = $ref;
265 $current_rev = $num+1 if $current_rev <= $num;
266 }
267 close($B);
268}
269-d $git_dir
270 or die "Could not create git subdir ($git_dir).\n";
271open BRANCHES,">>", "$git_dir/svn2git";
273sub node_kind($$$) {
275 my ($branch, $path, $revision) = @_;
276 my $pool=SVN::Pool->new;
277 my $kind = $svn->{'svn'}->check_path(revert_split_path($branch,$path),$revision,$pool);
278 $pool->clear;
279 return $kind;
280}
281sub revert_split_path($$) {
283 my($branch,$path) = @_;
284 my $svnpath;
286 $path = "" if $path eq "/"; # this should not happen, but ...
287 if($branch eq "/") {
288 $svnpath = "$trunk_name/$path";
289 } elsif($branch =~ m#^/#) {
290 $svnpath = "$tag_name$branch/$path";
291 } else {
292 $svnpath = "$branch_name/$branch/$path";
293 }
294 $svnpath =~ s#/+$##;
296 return $svnpath;
297}
298sub get_file($$$) {
300 my($rev,$branch,$path) = @_;
301 my $svnpath = revert_split_path($branch,$path);
303 # now get it
305 my ($name,$mode);
306 if($opt_d) {
307 my($req,$res);
308 # /svn/!svn/bc/2/django/trunk/django-docs/build.py
310 my $url=$svn_url->clone();
311 $url->path($url->path."/!svn/bc/$rev/$svn_dir$svnpath");
312 print "... $path...\n" if $opt_v;
313 $req = HTTP::Request->new(GET => $url);
314 $res = $lwp_ua->request($req);
315 if ($res->is_success) {
316 my $fh;
317 ($fh, $name) = tempfile('gitsvn.XXXXXX',
318 DIR => File::Spec->tmpdir(), UNLINK => 1);
319 print $fh $res->content;
320 close($fh) or die "Could not write $name: $!\n";
321 } else {
322 return undef if $res->code == 301; # directory?
323 die $res->status_line." at $url\n";
324 }
325 $mode = '0644'; # can't obtain mode via direct http request?
326 } else {
327 ($name,$mode) = $svn->file("$svnpath",$rev);
328 return undef unless defined $name;
329 }
330 my $pid = open(my $F, '-|');
332 die $! unless defined $pid;
333 if (!$pid) {
334 exec("git-hash-object", "-w", $name)
335 or die "Cannot create object: $!\n";
336 }
337 my $sha = <$F>;
338 chomp $sha;
339 close $F;
340 unlink $name;
341 return [$mode, $sha, $path];
342}
343sub split_path($$) {
345 my($rev,$path) = @_;
346 my $branch;
347 if($path =~ s#^/\Q$tag_name\E/([^/]+)/?##) {
349 $branch = "/$1";
350 } elsif($path =~ s#^/\Q$trunk_name\E/?##) {
351 $branch = "/";
352 } elsif($path =~ s#^/\Q$branch_name\E/([^/]+)/?##) {
353 $branch = $1;
354 } else {
355 my %no_error = (
356 "/" => 1,
357 "/$tag_name" => 1,
358 "/$branch_name" => 1
359 );
360 print STDERR "$rev: Unrecognized path: $path\n" unless (defined $no_error{$path});
361 return ()
362 }
363 $path = "/" if $path eq "";
364 return ($branch,$path);
365}
366sub branch_rev($$) {
368 my ($srcbranch,$uptorev) = @_;
370 my $bbranches = $branches{$srcbranch};
372 my @revs = reverse sort { ($a eq 'LAST' ? 0 : $a) <=> ($b eq 'LAST' ? 0 : $b) } keys %$bbranches;
373 my $therev;
374 foreach my $arev(@revs) {
375 next if ($arev eq 'LAST');
376 if ($arev <= $uptorev) {
377 $therev = $arev;
378 last;
379 }
380 }
381 return $therev;
382}
383sub copy_path($$$$$$$$) {
385 # Somebody copied a whole subdirectory.
386 # We need to find the index entries from the old version which the
387 # SVN log entry points to, and add them to the new place.
388 my($newrev,$newbranch,$path,$oldpath,$rev,$node_kind,$new,$parents) = @_;
390 my($srcbranch,$srcpath) = split_path($rev,$oldpath);
392 unless(defined $srcbranch) {
393 print "Path not found when copying from $oldpath @ $rev\n";
394 return;
395 }
396 my $therev = branch_rev($srcbranch, $rev);
397 my $gitrev = $branches{$srcbranch}{$therev};
398 unless($gitrev) {
399 print STDERR "$newrev:$newbranch: could not find $oldpath \@ $rev\n";
400 return;
401 }
402 if ($srcbranch ne $newbranch) {
403 push(@$parents, $branches{$srcbranch}{'LAST'});
404 }
405 print "$newrev:$newbranch:$path: copying from $srcbranch:$srcpath @ $rev\n" if $opt_v;
406 if ($node_kind eq $SVN::Node::dir) {
407 $srcpath =~ s#/*$#/#;
408 }
409
410 my $pid = open my $f,'-|';
411 die $! unless defined $pid;
412 if (!$pid) {
413 exec("git-ls-tree","-r","-z",$gitrev,$srcpath)
414 or die $!;
415 }
416 local $/ = "\0";
417 while(<$f>) {
418 chomp;
419 my($m,$p) = split(/\t/,$_,2);
420 my($mode,$type,$sha1) = split(/ /,$m);
421 next if $type ne "blob";
422 if ($node_kind eq $SVN::Node::dir) {
423 $p = $path . substr($p,length($srcpath)-1);
424 } else {
425 $p = $path;
426 }
427 push(@$new,[$mode,$sha1,$p]);
428 }
429 close($f) or
430 print STDERR "$newrev:$newbranch: could not list files in $oldpath \@ $rev\n";
431}
432sub commit {
434 my($branch, $changed_paths, $revision, $author, $date, $message) = @_;
435 my($author_name,$author_email,$dest);
436 my(@old,@new,@parents);
437 if (not defined $author) {
439 $author_name = $author_email = "unknown";
440 } elsif ($author =~ /^(.*?)\s+<(.*)>$/) {
441 ($author_name, $author_email) = ($1, $2);
442 } else {
443 $author =~ s/^<(.*)>$/$1/;
444 $author_name = $author_email = $author;
445 }
446 $date = pdate($date);
447 my $tag;
449 my $parent;
450 if($branch eq "/") { # trunk
451 $parent = $opt_o;
452 } elsif($branch =~ m#^/(.+)#) { # tag
453 $tag = 1;
454 $parent = $1;
455 } else { # "normal" branch
456 # nothing to do
457 $parent = $branch;
458 }
459 $dest = $parent;
460 my $prev = $changed_paths->{"/"};
462 if($prev and $prev->[0] eq "A") {
463 delete $changed_paths->{"/"};
464 my $oldpath = $prev->[1];
465 my $rev;
466 if(defined $oldpath) {
467 my $p;
468 ($parent,$p) = split_path($revision,$oldpath);
469 if($parent eq "/") {
470 $parent = $opt_o;
471 } else {
472 $parent =~ s#^/##; # if it's a tag
473 }
474 } else {
475 $parent = undef;
476 }
477 }
478 my $rev;
480 if($revision > $opt_s and defined $parent) {
481 open(H,"git-rev-parse --verify $parent |");
482 $rev = <H>;
483 close(H) or do {
484 print STDERR "$revision: cannot find commit '$parent'!\n";
485 return;
486 };
487 chop $rev;
488 if(length($rev) != 40) {
489 print STDERR "$revision: cannot find commit '$parent'!\n";
490 return;
491 }
492 $rev = $branches{($parent eq $opt_o) ? "/" : $parent}{"LAST"};
493 if($revision != $opt_s and not $rev) {
494 print STDERR "$revision: do not know ancestor for '$parent'!\n";
495 return;
496 }
497 } else {
498 $rev = undef;
499 }
500# if($prev and $prev->[0] eq "A") {
502# if(not $tag) {
503# unless(open(H,"> $git_dir/refs/heads/$branch")) {
504# print STDERR "$revision: Could not create branch $branch: $!\n";
505# $state=11;
506# next;
507# }
508# print H "$rev\n"
509# or die "Could not write branch $branch: $!";
510# close(H)
511# or die "Could not write branch $branch: $!";
512# }
513# }
514 if(not defined $rev) {
515 unlink($git_index);
516 } elsif ($rev ne $last_rev) {
517 print "Switching from $last_rev to $rev ($branch)\n" if $opt_v;
518 system("git-read-tree", $rev);
519 die "read-tree failed for $rev: $?\n" if $?;
520 $last_rev = $rev;
521 }
522 push (@parents, $rev) if defined $rev;
524 my $cid;
526 if($tag and not %$changed_paths) {
527 $cid = $rev;
528 } else {
529 my @paths = sort keys %$changed_paths;
530 foreach my $path(@paths) {
531 my $action = $changed_paths->{$path};
532 if ($action->[0] eq "R") {
534 # refer to a file/tree in an earlier commit
535 push(@old,$path); # remove any old stuff
536 }
537 if(($action->[0] eq "A") || ($action->[0] eq "R")) {
538 my $node_kind = node_kind($branch,$path,$revision);
539 if($action->[1]) {
540 copy_path($revision,$branch,$path,$action->[1],$action->[2],$node_kind,\@new,\@parents);
541 } elsif ($node_kind eq $SVN::Node::file) {
542 my $f = get_file($revision,$branch,$path);
543 if ($f) {
544 push(@new,$f) if $f;
545 } else {
546 my $opath = $action->[3];
547 print STDERR "$revision: $branch: could not fetch '$opath'\n";
548 }
549 }
550 } elsif ($action->[0] eq "D") {
551 push(@old,$path);
552 } elsif ($action->[0] eq "M") {
553 my $node_kind = node_kind($branch,$path,$revision);
554 if ($node_kind eq $SVN::Node::file) {
555 my $f = get_file($revision,$branch,$path);
556 push(@new,$f) if $f;
557 }
558 } else {
559 die "$revision: unknown action '".$action->[0]."' for $path\n";
560 }
561 }
562 while(@old) {
564 my @o1;
565 if(@old > 55) {
566 @o1 = splice(@old,0,50);
567 } else {
568 @o1 = @old;
569 @old = ();
570 }
571 my $pid = open my $F, "-|";
572 die "$!" unless defined $pid;
573 if (!$pid) {
574 exec("git-ls-files", "-z", @o1) or die $!;
575 }
576 @o1 = ();
577 local $/ = "\0";
578 while(<$F>) {
579 chomp;
580 push(@o1,$_);
581 }
582 close($F);
583 while(@o1) {
585 my @o2;
586 if(@o1 > 55) {
587 @o2 = splice(@o1,0,50);
588 } else {
589 @o2 = @o1;
590 @o1 = ();
591 }
592 system("git-update-index","--force-remove","--",@o2);
593 die "Cannot remove files: $?\n" if $?;
594 }
595 }
596 while(@new) {
597 my @n2;
598 if(@new > 12) {
599 @n2 = splice(@new,0,10);
600 } else {
601 @n2 = @new;
602 @new = ();
603 }
604 system("git-update-index","--add",
605 (map { ('--cacheinfo', @$_) } @n2));
606 die "Cannot add files: $?\n" if $?;
607 }
608 my $pid = open(C,"-|");
610 die "Cannot fork: $!" unless defined $pid;
611 unless($pid) {
612 exec("git-write-tree");
613 die "Cannot exec git-write-tree: $!\n";
614 }
615 chomp(my $tree = <C>);
616 length($tree) == 40
617 or die "Cannot get tree id ($tree): $!\n";
618 close(C)
619 or die "Error running git-write-tree: $?\n";
620 print "Tree ID $tree\n" if $opt_v;
621 my $pr = IO::Pipe->new() or die "Cannot open pipe: $!\n";
623 my $pw = IO::Pipe->new() or die "Cannot open pipe: $!\n";
624 $pid = fork();
625 die "Fork: $!\n" unless defined $pid;
626 unless($pid) {
627 $pr->writer();
628 $pw->reader();
629 open(OUT,">&STDOUT");
630 dup2($pw->fileno(),0);
631 dup2($pr->fileno(),1);
632 $pr->close();
633 $pw->close();
634 my @par = ();
636 # loose detection of merges
638 # based on the commit msg
639 foreach my $rx (@mergerx) {
640 if ($message =~ $rx) {
641 my $mparent = $1;
642 if ($mparent eq 'HEAD') { $mparent = $opt_o };
643 if ( -e "$git_dir/refs/heads/$mparent") {
644 $mparent = get_headref($mparent, $git_dir);
645 push (@parents, $mparent);
646 print OUT "Merge parent branch: $mparent\n" if $opt_v;
647 }
648 }
649 }
650 my %seen_parents = ();
651 my @unique_parents = grep { ! $seen_parents{$_} ++ } @parents;
652 foreach my $bparent (@unique_parents) {
653 push @par, '-p', $bparent;
654 print OUT "Merge parent branch: $bparent\n" if $opt_v;
655 }
656 exec("env",
658 "GIT_AUTHOR_NAME=$author_name",
659 "GIT_AUTHOR_EMAIL=$author_email",
660 "GIT_AUTHOR_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
661 "GIT_COMMITTER_NAME=$author_name",
662 "GIT_COMMITTER_EMAIL=$author_email",
663 "GIT_COMMITTER_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
664 "git-commit-tree", $tree,@par);
665 die "Cannot exec git-commit-tree: $!\n";
666 }
667 $pw->writer();
668 $pr->reader();
669 $message =~ s/[\s\n]+\z//;
671 $message = "r$revision: $message" if $opt_r;
672 print $pw "$message\n"
674 or die "Error writing to git-commit-tree: $!\n";
675 $pw->close();
676 print "Committed change $revision:$branch ".strftime("%Y-%m-%d %H:%M:%S",gmtime($date)).")\n" if $opt_v;
678 chomp($cid = <$pr>);
679 length($cid) == 40
680 or die "Cannot get commit id ($cid): $!\n";
681 print "Commit ID $cid\n" if $opt_v;
682 $pr->close();
683 waitpid($pid,0);
685 die "Error running git-commit-tree: $?\n" if $?;
686 }
687 if (not defined $cid) {
689 $cid = $branches{"/"}{"LAST"};
690 }
691 if(not defined $dest) {
693 print "... no known parent\n" if $opt_v;
694 } elsif(not $tag) {
695 print "Writing to refs/heads/$dest\n" if $opt_v;
696 open(C,">$git_dir/refs/heads/$dest") and
697 print C ("$cid\n") and
698 close(C)
699 or die "Cannot write branch $dest for update: $!\n";
700 }
701 if($tag) {
703 my($in, $out) = ('','');
704 $last_rev = "-" if %$changed_paths;
705 # the tag was 'complex', i.e. did not refer to a "real" revision
706 $dest =~ tr/_/\./ if $opt_u;
708 $branch = $dest;
709 my $pid = open2($in, $out, 'git-mktag');
711 print $out ("object $cid\n".
712 "type commit\n".
713 "tag $dest\n".
714 "tagger $author_name <$author_email>\n") and
715 close($out)
716 or die "Cannot create tag object $dest: $!\n";
717 my $tagobj = <$in>;
719 chomp $tagobj;
720 if ( !close($in) or waitpid($pid, 0) != $pid or
722 $? != 0 or $tagobj !~ /^[0123456789abcdef]{40}$/ ) {
723 die "Cannot create tag object $dest: $!\n";
724 }
725 open(C,">$git_dir/refs/tags/$dest") and
727 print C ("$tagobj\n") and
728 close(C)
729 or die "Cannot create tag $branch: $!\n";
730 print "Created tag '$dest' on '$branch'\n" if $opt_v;
732 }
733 $branches{$branch}{"LAST"} = $cid;
734 $branches{$branch}{$revision} = $cid;
735 $last_rev = $cid;
736 print BRANCHES "$revision $branch $cid\n";
737 print "DONE: $revision $dest $cid\n" if $opt_v;
738}
739sub commit_all {
741 # Recursive use of the SVN connection does not work
742 local $svn = $svn2;
743 my ($changed_paths, $revision, $author, $date, $message, $pool) = @_;
745 my %p;
746 while(my($path,$action) = each %$changed_paths) {
747 $p{$path} = [ $action->action,$action->copyfrom_path, $action->copyfrom_rev, $path ];
748 }
749 $changed_paths = \%p;
750 my %done;
752 my @col;
753 my $pref;
754 my $branch;
755 while(my($path,$action) = each %$changed_paths) {
757 ($branch,$path) = split_path($revision,$path);
758 next if not defined $branch;
759 $done{$branch}{$path} = $action;
760 }
761 while(($branch,$changed_paths) = each %done) {
762 commit($branch, $changed_paths, $revision, $author, $date, $message);
763 }
764}
765$opt_l = $svn->{'maxrev'} if not defined $opt_l or $opt_l > $svn->{'maxrev'};
767if ($svn->{'maxrev'} < $current_rev) {
769 print "Up to date: no new revisions to fetch!\n" if $opt_v;
770 unlink("$git_dir/SVN2GIT_HEAD");
771 exit;
772}
773print "Fetching from $current_rev to $opt_l ...\n" if $opt_v;
775my $pool=SVN::Pool->new;
777$svn->{'svn'}->get_log("/",$current_rev,$opt_l,0,1,1,\&commit_all,$pool);
778$pool->clear;
779unlink($git_index);
782if (defined $orig_git_index) {
784 $ENV{GIT_INDEX_FILE} = $orig_git_index;
785} else {
786 delete $ENV{GIT_INDEX_FILE};
787}
788# Now switch back to the branch we were in before all of this happened
790if($orig_branch) {
791 print "DONE\n" if $opt_v and (not defined $opt_l or $opt_l > 0);
792 system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
793 if $forward_master;
794 unless ($opt_i) {
795 system('git-read-tree', '-m', '-u', 'SVN2GIT_HEAD', 'HEAD');
796 die "read-tree failed: $?\n" if $?;
797 }
798} else {
799 $orig_branch = "master";
800 print "DONE; creating $orig_branch branch\n" if $opt_v and (not defined $opt_l or $opt_l > 0);
801 system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
802 unless -f "$git_dir/refs/heads/master";
803 system('git-update-ref', 'HEAD', "$orig_branch");
804 unless ($opt_i) {
805 system('git checkout');
806 die "checkout failed: $?\n" if $?;
807 }
808}
809unlink("$git_dir/SVN2GIT_HEAD");
810close(BRANCHES);