git-svnimport.perl

   1 #!/usr/bin/perl -w
   2
   3 # 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 CVS connection
   9 # / server process.
  10 #
  11 # The head revision is on branch "origin" by default.
  12 # You can change that with the '-o' option.
  13
  14 require v5.8.0; # for shell-safe open("-|",LIST)
  15 use strict;
  16 use warnings;
  17 use Getopt::Std;
  18 use File::Spec;
  19 use File::Temp qw(tempfile);
  20 use File::Path qw(mkpath);
  21 use File::Basename qw(basename dirname);
  22 use Time::Local;
  23 use IO::Pipe;
  24 use POSIX qw(strftime dup2);
  25 use IPC::Open2;
  26 use SVN::Core;
  27 use SVN::Ra;
  28
  29 die "Need CVN:COre 1.2.1 or better" if $SVN::Core::VERSION lt "1.2.1";
  30
  31 $SIG{'PIPE'}="IGNORE";
  32 $ENV{'TZ'}="UTC";
  33
  34 our($opt_h,$opt_o,$opt_v,$opt_u,$opt_C,$opt_i,$opt_m,$opt_M,$opt_t,$opt_T,$opt_b);
  35
  36 sub usage() {
  37         print STDERR <<END;
  38 Usage: ${\basename $0}     # fetch/update GIT from CVS
  39        [-o branch-for-HEAD] [-h] [-v]
  40        [-C GIT_repository] [-t tagname] [-T trunkname] [-b branchname]
  41        [-i] [-u] [-s subst] [-m] [-M regex] [SVN_URL]
  42 END
  43         exit(1);
  44 }
  45
  46 getopts("b:C:hivmM:o:t:T:u") or usage();
  47 usage if $opt_h;
  48
  49 my $tag_name = $opt_t || "tags";
  50 my $trunk_name = $opt_T || "trunk";
  51 my $branch_name = $opt_b || "branches";
  52
  53 @ARGV <= 1 or usage();
  54
  55 $opt_o ||= "origin";
  56 my $git_tree = $opt_C;
  57 $git_tree ||= ".";
  58
  59 my $cvs_tree;
  60 if ($#ARGV == 0) {
  61         $cvs_tree = $ARGV[0];
  62 } elsif (-f 'CVS/Repository') {
  63         open my $f, '<', 'CVS/Repository' or
  64             die 'Failed to open CVS/Repository';
  65         $cvs_tree = <$f>;
  66         chomp $cvs_tree;
  67         close $f;
  68 } else {
  69         usage();
  70 }
  71
  72 our @mergerx = ();
  73 if ($opt_m) {
  74         @mergerx = ( qr/\W(?:from|of|merge|merging|merged) (\w+)/i );
  75 }
  76 if ($opt_M) {
  77         push (@mergerx, qr/$opt_M/);
  78 }
  79
  80 select(STDERR); $|=1; select(STDOUT);
  81
  82
  83 package SVNconn;
  84 # Basic SVN connection.
  85 # We're only interested in connecting and downloading, so ...
  86
  87 use File::Spec;
  88 use File::Temp qw(tempfile);
  89 use POSIX qw(strftime dup2);
  90
  91 sub new {
  92         my($what,$repo) = @_;
  93         $what=ref($what) if ref($what);
  94
  95         my $self = {};
  96         $self->{'buffer'} = "";
  97         bless($self,$what);
  98
  99         $repo =~ s#/+$##;
 100         $self->{'fullrep'} = $repo;
 101         $self->conn();
 102
 103         return $self;
 104 }
 105
 106 sub conn {
 107         my $self = shift;
 108         my $repo = $self->{'fullrep'};
 109         my $s = SVN::Ra->new($repo);
 110
 111         die "SVN connection to $repo: $!\n" unless defined $s;
 112         $self->{'svn'} = $s;
 113         $self->{'repo'} = $repo;
 114         $self->{'maxrev'} = $s->get_latest_revnum();
 115 }
 116
 117 sub file {
 118         my($self,$path,$rev) = @_;
 119         my $res;
 120
 121         my ($fh, $name) = tempfile('gitsvn.XXXXXX',
 122                     DIR => File::Spec->tmpdir(), UNLINK => 1);
 123
 124         print "... $rev $path ...\n" if $opt_v;
 125         my $s = $self->{'svn'};
 126         eval { $s->get_file($path,$rev,$fh); };
 127         if ($@ and $@ !~ /Attempted to get checksum/) {
 128             # retry
 129             $self->conn();
 130                 eval { $self->{'svn'}->get_file($path,$rev,$fh); };
 131         };
 132         return () if $@ and $@ !~ /Attempted to get checksum/;
 133         die $@ if $@;
 134         close ($fh);
 135
 136         return ($name, $res);
 137 }
 138
 139
 140 package main;
 141
 142 my $svn = SVNconn->new($cvs_tree);
 143
 144
 145 sub pdate($) {
 146         my($d) = @_;
 147         $d =~ m#(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)#
 148                 or die "Unparseable date: $d\n";
 149         my $y=$1; $y-=1900 if $y>1900;
 150         return timegm($6||0,$5,$4,$3,$2-1,$y);
 151 }
 152
 153 sub getwd() {
 154         my $pwd = `pwd`;
 155         chomp $pwd;
 156         return $pwd;
 157 }
 158
 159
 160 sub get_headref($$) {
 161     my $name    = shift;
 162     my $git_dir = shift;
 163     my $sha;
 164
 165     if (open(C,"$git_dir/refs/heads/$name")) {
 166         chomp($sha = <C>);
 167         close(C);
 168         length($sha) == 40
 169             or die "Cannot get head id for $name ($sha): $!\n";
 170     }
 171     return $sha;
 172 }
 173
 174
 175 -d $git_tree
 176         or mkdir($git_tree,0777)
 177         or die "Could not create $git_tree: $!";
 178 chdir($git_tree);
 179
 180 my $orig_branch = "";
 181 my $forward_master = 0;
 182 my %branches;
 183
 184 my $git_dir = $ENV{"GIT_DIR"} || ".git";
 185 $git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#;
 186 $ENV{"GIT_DIR"} = $git_dir;
 187 my $orig_git_index;
 188 $orig_git_index = $ENV{GIT_INDEX_FILE} if exists $ENV{GIT_INDEX_FILE};
 189 my ($git_ih, $git_index) = tempfile('gitXXXXXX', SUFFIX => '.idx',
 190                                     DIR => File::Spec->tmpdir());
 191 close ($git_ih);
 192 $ENV{GIT_INDEX_FILE} = $git_index;
 193 my $maxnum = 0;
 194 my $last_rev = "";
 195 my $last_branch;
 196 my $current_rev = 0;
 197 unless(-d $git_dir) {
 198         system("git-init-db");
 199         die "Cannot init the GIT db at $git_tree: $?\n" if $?;
 200         system("git-read-tree");
 201         die "Cannot init an empty tree: $?\n" if $?;
 202
 203         $last_branch = $opt_o;
 204         $orig_branch = "";
 205 } else {
 206         -f "$git_dir/refs/heads/$opt_o"
 207                 or die "Branch '$opt_o' does not exist.\n".
 208                        "Either use the correct '-o branch' option,\n".
 209                        "or import to a new repository.\n";
 210
 211         -f "$git_dir/svn2git"
 212                 or die "'$git_dir/svn2git' does not exist.\n".
 213                        "You need that file for incremental imports.\n";
 214         $last_branch = basename(readlink("$git_dir/HEAD"));
 215         unless($last_branch) {
 216                 warn "Cannot read the last branch name: $! -- assuming 'master'\n";
 217                 $last_branch = "master";
 218         }
 219         $orig_branch = $last_branch;
 220         $last_rev = get_headref($orig_branch, $git_dir);
 221         if (-f "$git_dir/SVN2GIT_HEAD") {
 222                 die <<EOM;
 223 SVN2GIT_HEAD exists.
 224 Make sure your working directory corresponds to HEAD and remove SVN2GIT_HEAD.
 225 You may need to run
 226
 227     git-read-tree -m -u SVN2GIT_HEAD HEAD
 228 EOM
 229         }
 230         system('cp', "$git_dir/HEAD", "$git_dir/SVN2GIT_HEAD");
 231
 232         $forward_master =
 233             $opt_o ne 'master' && -f "$git_dir/refs/heads/master" &&
 234             system('cmp', '-s', "$git_dir/refs/heads/master",
 235                                 "$git_dir/refs/heads/$opt_o") == 0;
 236
 237         # populate index
 238         system('git-read-tree', $last_rev);
 239         die "read-tree failed: $?\n" if $?;
 240
 241         # Get the last import timestamps
 242         open my $B,"<", "$git_dir/svn2git";
 243         while(<$B>) {
 244                 chomp;
 245                 my($num,$branch,$ref) = split;
 246                 $branches{$branch}{$num} = $ref;
 247                 $branches{$branch}{"LAST"} = $ref;
 248                 $current_rev = $num+1 if $current_rev < $num+1;
 249         }
 250         close($B);
 251 }
 252 -d $git_dir
 253         or die "Could not create git subdir ($git_dir).\n";
 254
 255 open BRANCHES,">>", "$git_dir/svn2git";
 256
 257
 258 ## cvsps output:
 259 #---------------------
 260 #PatchSet 314
 261 #Date: 1999/09/18 13:03:59
 262 #Author: wkoch
 263 #Branch: STABLE-BRANCH-1-0
 264 #Ancestor branch: HEAD
 265 #Tag: (none)
 266 #Log:
 267 #    See ChangeLog: Sat Sep 18 13:03:28 CEST 1999  Werner Koch
 268 #Members:
 269 #       README:1.57->1.57.2.1
 270 #       VERSION:1.96->1.96.2.1
 271 #
 272 #---------------------
 273
 274 my $state = 0;
 275
 276 sub get_file($$$) {
 277         my($rev,$branch,$path) = @_;
 278
 279         # revert split_path(), below
 280         my $svnpath;
 281         $path = "" if $path eq "/"; # this should not happen, but ...
 282         if($branch eq "/") {
 283                 $svnpath = "/$trunk_name/$path";
 284         } elsif($branch =~ m#^/#) {
 285                 $svnpath = "/$tag_name$branch/$path";
 286         } else {
 287                 $svnpath = "/$branch_name/$branch/$path";
 288         }
 289
 290         # now get it
 291         my ($name, $res) = eval { $svn->file($svnpath,$rev); };
 292         return () unless defined $name;
 293
 294         open my $F, '-|', "git-hash-object", "-w", $name
 295                 or die "Cannot create object: $!\n";
 296         my $sha = <$F>;
 297         chomp $sha;
 298         close $F;
 299         my $mode = "0644"; # SV does not seem to store any file modes
 300         return [$mode, $sha, $path];
 301 }
 302
 303 sub split_path($$) {
 304         my($rev,$path) = @_;
 305         my $branch;
 306
 307         if($path =~ s#^/\Q$tag_name\E/([^/]+)/?##) {
 308                 $branch = "/$1";
 309         } elsif($path =~ s#^/\Q$trunk_name\E/?##) {
 310                 $branch = "/";
 311         } elsif($path =~ s#^/\Q$branch_name\E/([^/]+)/?##) {
 312                 $branch = $1;
 313         } else {
 314                 print STDERR "$rev: Unrecognized path: $path\n";
 315                 return ()
 316         }
 317         $path = "/" if $path eq "";
 318         return ($branch,$path);
 319 }
 320
 321 sub commit {
 322         my($branch, $changed_paths, $revision, $author, $date, $message) = @_;
 323         my($author_name,$author_email,$dest);
 324         my(@old,@new);
 325
 326         if (not defined $author) {
 327                 $author_name = $author_email = "unknown";
 328         } elsif ($author =~ /^(.*?)\s+<(.*)>$/) {
 329                 ($author_name, $author_email) = ($1, $2);
 330         } else {
 331                 $author =~ s/^<(.*)>$/$1/;
 332                 $author_name = $author_email = $author;
 333         }
 334         $date = pdate($date);
 335
 336         my $tag;
 337         my $parent;
 338         if($branch eq "/") { # trunk
 339                 $parent = $opt_o;
 340         } elsif($branch =~ m#^/(.+)#) { # tag
 341                 $tag = 1;
 342                 $parent = $1;
 343         } else { # "normal" branch
 344                 # nothing to do
 345                 $parent = $branch;
 346         }
 347         $dest = $parent;
 348
 349         my $prev = $changed_paths->{"/"};
 350         if($prev and $prev->[0] eq "A") {
 351                 delete $changed_paths->{"/"};
 352                 my $oldpath = $prev->[1];
 353                 my $rev;
 354                 if(defined $oldpath) {
 355                         my $p;
 356                         ($parent,$p) = split_path($revision,$oldpath);
 357                         if($parent eq "/") {
 358                                 $parent = $opt_o;
 359                         } else {
 360                                 $parent =~ s#^/##; # if it's a tag
 361                         }
 362                 } else {
 363                         $parent = undef;
 364                 }
 365         }
 366
 367         my $rev;
 368         if(defined $parent) {
 369                 open(H,"git-rev-parse --verify $parent |");
 370                 $rev = <H>;
 371                 close(H) or do {
 372                         print STDERR "$revision: cannot find commit '$parent'!\n";
 373                         return;
 374                 };
 375                 chop $rev;
 376                 if(length($rev) != 40) {
 377                         print STDERR "$revision: cannot find commit '$parent'!\n";
 378                         return;
 379                 }
 380                 $rev = $branches{($parent eq $opt_o) ? "/" : $parent}{"LAST"};
 381                 if($revision != 1 and not $rev) {
 382                         print STDERR "$revision: do not know ancestor for '$parent'!\n";
 383                         return;
 384                 }
 385         } else {
 386                 $rev = undef;
 387         }
 388
 389 #       if($prev and $prev->[0] eq "A") {
 390 #               if(not $tag) {
 391 #                       unless(open(H,"> $git_dir/refs/heads/$branch")) {
 392 #                               print STDERR "$revision: Could not create branch $branch: $!\n";
 393 #                               $state=11;
 394 #                               next;
 395 #                       }
 396 #                       print H "$rev\n"
 397 #                               or die "Could not write branch $branch: $!";
 398 #                       close(H)
 399 #                               or die "Could not write branch $branch: $!";
 400 #               }
 401 #       }
 402         if(not defined $rev) {
 403                 unlink($git_index);
 404         } elsif ($rev ne $last_rev) {
 405                 print "Switching from $last_rev to $rev ($branch)\n" if $opt_v;
 406                 system("git-read-tree", $rev);
 407                 die "read-tree failed for $rev: $?\n" if $?;
 408                 $last_rev = $rev;
 409         }
 410
 411         while(my($path,$action) = each %$changed_paths) {
 412                 if ($action->[0] eq "A") {
 413                         my $f = get_file($revision,$branch,$path);
 414                         push(@new,$f) if $f;
 415                 } elsif ($action->[0] eq "D") {
 416                         push(@old,$path);
 417                 } elsif ($action->[0] eq "M") {
 418                         my $f = get_file($revision,$branch,$path);
 419                         push(@new,$f) if $f;
 420                 } elsif ($action->[0] eq "R") {
 421                         # refer to a file/tree in an earlier commit
 422                         push(@old,$path); # remove any old stuff
 423
 424                         # ... and add any new stuff
 425                         my($b,$p) = split_path($revision,$action->[1]);
 426                         open my $F,"-|","git-ls-tree","-r","-z", $branches{$b}{$action->[2]}, $p;
 427                         local $/ = '\0';
 428                         while(<$F>) {
 429                                 chomp;
 430                                 my($m,$p) = split(/\t/,$_,2);
 431                                 my($mode,$type,$sha1) = split(/ /,$m);
 432                                 next if $type ne "blob";
 433                                 push(@new,[$mode,$sha1,$p]);
 434                         }
 435                 } else {
 436                         die "$revision: unknown action '".$action->[0]."' for $path\n";
 437                 }
 438         }
 439
 440         if(@old) {
 441                 open my $F, "-|", "git-ls-files", "-z", @old or die $!;
 442                 @old = ();
 443                 local $/ = '\0';
 444                 while(<$F>) {
 445                         chomp;
 446                         push(@old,$_);
 447                 }
 448                 close($F);
 449
 450                 while(@old) {
 451                         my @o2;
 452                         if(@old > 55) {
 453                                 @o2 = splice(@old,0,50);
 454                         } else {
 455                                 @o2 = @old;
 456                                 @old = ();
 457                         }
 458                         system("git-update-index","--force-remove","--",@o2);
 459                         die "Cannot remove files: $?\n" if $?;
 460                 }
 461         }
 462         while(@new) {
 463                 my @n2;
 464                 if(@new > 12) {
 465                         @n2 = splice(@new,0,10);
 466                 } else {
 467                         @n2 = @new;
 468                         @new = ();
 469                 }
 470                 system("git-update-index","--add",
 471                         (map { ('--cacheinfo', @$_) } @n2));
 472                 die "Cannot add files: $?\n" if $?;
 473         }
 474
 475         my $pid = open(C,"-|");
 476         die "Cannot fork: $!" unless defined $pid;
 477         unless($pid) {
 478                 exec("git-write-tree");
 479                 die "Cannot exec git-write-tree: $!\n";
 480         }
 481         chomp(my $tree = <C>);
 482         length($tree) == 40
 483                 or die "Cannot get tree id ($tree): $!\n";
 484         close(C)
 485                 or die "Error running git-write-tree: $?\n";
 486         print "Tree ID $tree\n" if $opt_v;
 487
 488         my $pr = IO::Pipe->new() or die "Cannot open pipe: $!\n";
 489         my $pw = IO::Pipe->new() or die "Cannot open pipe: $!\n";
 490         $pid = fork();
 491         die "Fork: $!\n" unless defined $pid;
 492         unless($pid) {
 493                 $pr->writer();
 494                 $pw->reader();
 495                 open(OUT,">&STDOUT");
 496                 dup2($pw->fileno(),0);
 497                 dup2($pr->fileno(),1);
 498                 $pr->close();
 499                 $pw->close();
 500
 501                 my @par = ();
 502                 @par = ("-p",$rev) if defined $rev;
 503
 504                 # loose detection of merges
 505                 # based on the commit msg
 506                 foreach my $rx (@mergerx) {
 507                         if ($message =~ $rx) {
 508                                 my $mparent = $1;
 509                                 if ($mparent eq 'HEAD') { $mparent = $opt_o };
 510                                 if ( -e "$git_dir/refs/heads/$mparent") {
 511                                         $mparent = get_headref($mparent, $git_dir);
 512                                         push @par, '-p', $mparent;
 513                                         print OUT "Merge parent branch: $mparent\n" if $opt_v;
 514                                 }
 515                         }
 516                 }
 517
 518                 exec("env",
 519                         "GIT_AUTHOR_NAME=$author_name",
 520                         "GIT_AUTHOR_EMAIL=$author_email",
 521                         "GIT_AUTHOR_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
 522                         "GIT_COMMITTER_NAME=$author_name",
 523                         "GIT_COMMITTER_EMAIL=$author_email",
 524                         "GIT_COMMITTER_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
 525                         "git-commit-tree", $tree,@par);
 526                 die "Cannot exec git-commit-tree: $!\n";
 527         }
 528         $pw->writer();
 529         $pr->reader();
 530
 531         $message =~ s/[\s\n]+\z//;
 532
 533         print $pw "$message\n"
 534                 or die "Error writing to git-commit-tree: $!\n";
 535         $pw->close();
 536
 537         print "Committed change $revision:$branch ".strftime("%Y-%m-%d %H:%M:%S",gmtime($date)).")\n" if $opt_v;
 538         chomp(my $cid = <$pr>);
 539         length($cid) == 40
 540                 or die "Cannot get commit id ($cid): $!\n";
 541         print "Commit ID $cid\n" if $opt_v;
 542         $pr->close();
 543
 544         waitpid($pid,0);
 545         die "Error running git-commit-tree: $?\n" if $?;
 546
 547         if(defined $dest) {
 548                 print "Writing to refs/heads/$dest\n" if $opt_v;
 549                 open(C,">$git_dir/refs/heads/$dest") and
 550                 print C ("$cid\n") and
 551                 close(C)
 552                         or die "Cannot write branch $dest for update: $!\n";
 553         } else {
 554                 print "... no known parent\n" if $opt_v;
 555         }
 556         $branches{$branch}{"LAST"} = $cid;
 557         $branches{$branch}{$revision} = $cid;
 558         $last_rev = $cid;
 559         print BRANCHES "$revision $branch $cid\n";
 560         print "DONE: $revision $dest $cid\n" if $opt_v;
 561
 562         if($tag) {
 563                 my($in, $out) = ('','');
 564                 $last_rev = "-" if %$changed_paths;
 565                 # the tag was 'complex', i.e. did not refer to a "real" revision
 566
 567                 $tag =~ tr/_/\./ if $opt_u;
 568
 569                 my $pid = open2($in, $out, 'git-mktag');
 570                 print $out ("object $cid\n".
 571                     "type commit\n".
 572                     "tag $tag\n".
 573                     "tagger $author_name <$author_email>\n") and
 574                 close($out)
 575                     or die "Cannot create tag object $tag: $!\n";
 576
 577                 my $tagobj = <$in>;
 578                 chomp $tagobj;
 579
 580                 if ( !close($in) or waitpid($pid, 0) != $pid or
 581                                 $? != 0 or $tagobj !~ /^[0123456789abcdef]{40}$/ ) {
 582                         die "Cannot create tag object $tag: $!\n";
 583                 }
 584
 585
 586                 open(C,">$git_dir/refs/tags/$tag")
 587                         or die "Cannot create tag $tag: $!\n";
 588                 print C "$tagobj\n"
 589                         or die "Cannot write tag $tag: $!\n";
 590                 close(C)
 591                         or die "Cannot write tag $tag: $!\n";
 592
 593                 print "Created tag '$tag' on '$branch'\n" if $opt_v;
 594         }
 595 }
 596
 597 my ($changed_paths, $revision, $author, $date, $message, $pool) = @_;
 598 sub _commit_all {
 599         ($changed_paths, $revision, $author, $date, $message, $pool) = @_;
 600         my %p;
 601         while(my($path,$action) = each %$changed_paths) {
 602                 $p{$path} = [ $action->action,$action->copyfrom_path, $action->copyfrom_rev ];
 603         }
 604         $changed_paths = \%p;
 605 }
 606
 607 sub commit_all {
 608         my %done;
 609         my @col;
 610         my $pref;
 611         my $branch;
 612
 613         while(my($path,$action) = each %$changed_paths) {
 614                 ($branch,$path) = split_path($revision,$path);
 615                 next if not defined $branch;
 616                 $done{$branch}{$path} = $action;
 617         }
 618         while(($branch,$changed_paths) = each %done) {
 619                 commit($branch, $changed_paths, $revision, $author, $date, $message);
 620         }
 621 }
 622
 623 while(++$current_rev < $svn->{'maxrev'}) {
 624         $svn->{'svn'}->get_log("/",$current_rev,$current_rev,$current_rev,1,1,\&_commit_all,"");
 625         commit_all();
 626 }
 627
 628
 629 unlink($git_index);
 630
 631 if (defined $orig_git_index) {
 632         $ENV{GIT_INDEX_FILE} = $orig_git_index;
 633 } else {
 634         delete $ENV{GIT_INDEX_FILE};
 635 }
 636
 637 # Now switch back to the branch we were in before all of this happened
 638 if($orig_branch) {
 639         print "DONE\n" if $opt_v;
 640         system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
 641                 if $forward_master;
 642         unless ($opt_i) {
 643                 system('git-read-tree', '-m', '-u', 'SVN2GIT_HEAD', 'HEAD');
 644                 die "read-tree failed: $?\n" if $?;
 645         }
 646 } else {
 647         $orig_branch = "master";
 648         print "DONE; creating $orig_branch branch\n" if $opt_v;
 649         system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
 650                 unless -f "$git_dir/refs/heads/master";
 651         unlink("$git_dir/HEAD");
 652         symlink("refs/heads/$orig_branch","$git_dir/HEAD");
 653         unless ($opt_i) {
 654                 system('git checkout');
 655                 die "checkout failed: $?\n" if $?;
 656         }
 657 }
 658 unlink("$git_dir/SVN2GIT_HEAD");
 659 close(BRANCHES);