[PATCH] Fix local pull that uses packs.
[git/git.git] / git-cvsimport-script
CommitLineData
a57a9493 1#!/usr/bin/perl -w
9718a00b 2
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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 aggregate CVS check-ins into related changes.
7# Fortunately, "cvsps" does that for us; all we have to do is to parse
8# its output.
9#
10# Checking out the files is done by a single long-running CVS connection
11# / server process.
12#
13# The head revision is on branch "origin" by default.
14# You can change that with the '-o' option.
15
16use strict;
17use warnings;
18use Getopt::Std;
79ee456c
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19use File::Spec;
20use File::Temp qw(tempfile);
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21use File::Path qw(mkpath);
22use File::Basename qw(basename dirname);
23use Time::Local;
2a3e1a85
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24use IO::Socket;
25use IO::Pipe;
26use POSIX qw(strftime dup2);
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27
28$SIG{'PIPE'}="IGNORE";
29$ENV{'TZ'}="UTC";
30
c1c774e7 31our($opt_h,$opt_o,$opt_v,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i);
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32
33sub usage() {
34 print STDERR <<END;
2a3e1a85 35Usage: ${\basename $0} # fetch/update GIT from CVS
28537171
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36 [ -o branch-for-HEAD ] [ -h ] [ -v ] [ -d CVSROOT ]
37 [ -p opts-for-cvsps ] [ -C GIT_repository ] [ -z fuzz ]
c1c774e7 38 [ -i ] [ CVS_module ]
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39END
40 exit(1);
41}
42
c1c774e7 43getopts("hivo:d:p:C:z:") or usage();
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44usage if $opt_h;
45
f9714a4a 46@ARGV <= 1 or usage();
a57a9493 47
2a3e1a85
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48if($opt_d) {
49 $ENV{"CVSROOT"} = $opt_d;
f9714a4a
SV
50} elsif(-f 'CVS/Root') {
51 open my $f, '<', 'CVS/Root' or die 'Failed to open CVS/Root';
52 $opt_d = <$f>;
53 chomp $opt_d;
54 close $f;
55 $ENV{"CVSROOT"} = $opt_d;
2a3e1a85
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56} elsif($ENV{"CVSROOT"}) {
57 $opt_d = $ENV{"CVSROOT"};
58} else {
59 die "CVSROOT needs to be set";
60}
61$opt_o ||= "origin";
f9714a4a 62my $git_tree = $opt_C;
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63$git_tree ||= ".";
64
f9714a4a
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65my $cvs_tree;
66if ($#ARGV == 0) {
67 $cvs_tree = $ARGV[0];
68} elsif (-f 'CVS/Repository') {
69 open my $f, '<', 'CVS/Repository' or
70 die 'Failed to open CVS/Repository';
71 $cvs_tree = <$f>;
72 chomp $cvs_tree;
73 close $f
74} else {
75 usage();
76}
77
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78select(STDERR); $|=1; select(STDOUT);
79
80
81package CVSconn;
82# Basic CVS dialog.
2a3e1a85 83# We're only interested in connecting and downloading, so ...
a57a9493 84
2eb6d82e
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85use File::Spec;
86use File::Temp qw(tempfile);
f65ae603
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87use POSIX qw(strftime dup2);
88
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89sub new {
90 my($what,$repo,$subdir) = @_;
91 $what=ref($what) if ref($what);
92
93 my $self = {};
94 $self->{'buffer'} = "";
95 bless($self,$what);
96
97 $repo =~ s#/+$##;
98 $self->{'fullrep'} = $repo;
99 $self->conn();
100
101 $self->{'subdir'} = $subdir;
102 $self->{'lines'} = undef;
103
104 return $self;
105}
106
107sub conn {
108 my $self = shift;
109 my $repo = $self->{'fullrep'};
110 if($repo =~ s/^:pserver:(?:(.*?)(?::(.*?))?@)?([^:\/]*)(?::(\d*))?//) {
111 my($user,$pass,$serv,$port) = ($1,$2,$3,$4);
112 $user="anonymous" unless defined $user;
2a3e1a85 113 my $rr2 = "-";
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114 unless($port) {
115 $rr2 = ":pserver:$user\@$serv:$repo";
116 $port=2401;
117 }
118 my $rr = ":pserver:$user\@$serv:$port$repo";
119
120 unless($pass) {
121 open(H,$ENV{'HOME'}."/.cvspass") and do {
122 # :pserver:cvs@mea.tmt.tele.fi:/cvsroot/zmailer Ah<Z
123 while(<H>) {
124 chomp;
125 s/^\/\d+\s+//;
126 my ($w,$p) = split(/\s/,$_,2);
127 if($w eq $rr or $w eq $rr2) {
128 $pass = $p;
129 last;
130 }
131 }
132 };
133 }
134 $pass="A" unless $pass;
135
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136 my $s = IO::Socket::INET->new(PeerHost => $serv, PeerPort => $port);
137 die "Socket to $serv: $!\n" unless defined $s;
138 $s->write("BEGIN AUTH REQUEST\n$repo\n$user\n$pass\nEND AUTH REQUEST\n")
139 or die "Write to $serv: $!\n";
140 $s->flush();
141
142 my $rep = <$s>;
143
144 if($rep ne "I LOVE YOU\n") {
145 $rep="<unknown>" unless $rep;
146 die "AuthReply: $rep\n";
147 }
148 $self->{'socketo'} = $s;
149 $self->{'socketi'} = $s;
34155390 150 } else { # local or ext: Fork off our own cvs server.
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151 my $pr = IO::Pipe->new();
152 my $pw = IO::Pipe->new();
153 my $pid = fork();
154 die "Fork: $!\n" unless defined $pid;
8d0ea311
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155 my $cvs = 'cvs';
156 $cvs = $ENV{CVS_SERVER} if exists $ENV{CVS_SERVER};
34155390
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157 my $rsh = 'rsh';
158 $rsh = $ENV{CVS_RSH} if exists $ENV{CVS_RSH};
159
160 my @cvs = ($cvs, 'server');
161 my ($local, $user, $host);
162 $local = $repo =~ s/:local://;
163 if (!$local) {
164 $repo =~ s/:ext://;
165 $local = !($repo =~ s/^(?:([^\@:]+)\@)?([^:]+)://);
166 ($user, $host) = ($1, $2);
167 }
168 if (!$local) {
169 if ($user) {
170 unshift @cvs, $rsh, '-l', $user, $host;
171 } else {
172 unshift @cvs, $rsh, $host;
173 }
174 }
175
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176 unless($pid) {
177 $pr->writer();
178 $pw->reader();
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179 dup2($pw->fileno(),0);
180 dup2($pr->fileno(),1);
181 $pr->close();
182 $pw->close();
34155390 183 exec(@cvs);
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184 }
185 $pw->writer();
186 $pr->reader();
187 $self->{'socketo'} = $pw;
188 $self->{'socketi'} = $pr;
189 }
190 $self->{'socketo'}->write("Root $repo\n");
191
192 # Trial and error says that this probably is the minimum set
b0921331 193 $self->{'socketo'}->write("Valid-responses ok error Valid-requests Mode M Mbinary E Checked-in Created Updated Merged Removed\n");
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194
195 $self->{'socketo'}->write("valid-requests\n");
196 $self->{'socketo'}->flush();
197
198 chomp(my $rep=$self->readline());
199 if($rep !~ s/^Valid-requests\s*//) {
200 $rep="<unknown>" unless $rep;
201 die "Expected Valid-requests from server, but got: $rep\n";
202 }
203 chomp(my $res=$self->readline());
204 die "validReply: $res\n" if $res ne "ok";
205
206 $self->{'socketo'}->write("UseUnchanged\n") if $rep =~ /\bUseUnchanged\b/;
207 $self->{'repo'} = $repo;
208}
209
210sub readline {
211 my($self) = @_;
212 return $self->{'socketi'}->getline();
213}
214
215sub _file {
216 # Request a file with a given revision.
217 # Trial and error says this is a good way to do it. :-/
218 my($self,$fn,$rev) = @_;
219 $self->{'socketo'}->write("Argument -N\n") or return undef;
220 $self->{'socketo'}->write("Argument -P\n") or return undef;
221 # $self->{'socketo'}->write("Argument -ko\n") or return undef;
222 # -ko: Linus' version doesn't use it
223 $self->{'socketo'}->write("Argument -r\n") or return undef;
224 $self->{'socketo'}->write("Argument $rev\n") or return undef;
225 $self->{'socketo'}->write("Argument --\n") or return undef;
226 $self->{'socketo'}->write("Argument $self->{'subdir'}/$fn\n") or return undef;
227 $self->{'socketo'}->write("Directory .\n") or return undef;
228 $self->{'socketo'}->write("$self->{'repo'}\n") or return undef;
4f7c0caa 229 # $self->{'socketo'}->write("Sticky T1.0\n") or return undef;
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230 $self->{'socketo'}->write("co\n") or return undef;
231 $self->{'socketo'}->flush() or return undef;
232 $self->{'lines'} = 0;
233 return 1;
234}
235sub _line {
236 # Read a line from the server.
237 # ... except that 'line' may be an entire file. ;-)
2eb6d82e 238 my($self, $fh) = @_;
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239 die "Not in lines" unless defined $self->{'lines'};
240
241 my $line;
2eb6d82e 242 my $res=0;
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243 while(defined($line = $self->readline())) {
244 # M U gnupg-cvs-rep/AUTHORS
245 # Updated gnupg-cvs-rep/
246 # /daten/src/rsync/gnupg-cvs-rep/AUTHORS
247 # /AUTHORS/1.1///T1.1
248 # u=rw,g=rw,o=rw
249 # 0
250 # ok
251
252 if($line =~ s/^(?:Created|Updated) //) {
253 $line = $self->readline(); # path
254 $line = $self->readline(); # Entries line
255 my $mode = $self->readline(); chomp $mode;
256 $self->{'mode'} = $mode;
257 defined (my $cnt = $self->readline())
258 or die "EOF from server after 'Changed'\n";
259 chomp $cnt;
260 die "Duh: Filesize $cnt" if $cnt !~ /^\d+$/;
261 $line="";
2eb6d82e 262 $res=0;
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263 while($cnt) {
264 my $buf;
265 my $num = $self->{'socketi'}->read($buf,$cnt);
266 die "Server: Filesize $cnt: $num: $!\n" if not defined $num or $num<=0;
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267 print $fh $buf;
268 $res += $num;
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269 $cnt -= $num;
270 }
271 } elsif($line =~ s/^ //) {
2eb6d82e
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272 print $fh $line;
273 $res += length($line);
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274 } elsif($line =~ /^M\b/) {
275 # output, do nothing
276 } elsif($line =~ /^Mbinary\b/) {
277 my $cnt;
278 die "EOF from server after 'Mbinary'" unless defined ($cnt = $self->readline());
279 chomp $cnt;
280 die "Duh: Mbinary $cnt" if $cnt !~ /^\d+$/ or $cnt<1;
281 $line="";
282 while($cnt) {
283 my $buf;
284 my $num = $self->{'socketi'}->read($buf,$cnt);
285 die "S: Mbinary $cnt: $num: $!\n" if not defined $num or $num<=0;
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286 print $fh $buf;
287 $res += $num;
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288 $cnt -= $num;
289 }
290 } else {
291 chomp $line;
292 if($line eq "ok") {
293 # print STDERR "S: ok (".length($res).")\n";
294 return $res;
295 } elsif($line =~ s/^E //) {
296 # print STDERR "S: $line\n";
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297 } elsif($line =~ /^Remove-entry /i) {
298 $line = $self->readline(); # filename
299 $line = $self->readline(); # OK
300 chomp $line;
301 die "Unknown: $line" if $line ne "ok";
302 return -1;
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303 } else {
304 die "Unknown: $line\n";
305 }
306 }
307 }
308}
309sub file {
310 my($self,$fn,$rev) = @_;
311 my $res;
312
2eb6d82e
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313 my ($fh, $name) = tempfile('gitcvs.XXXXXX',
314 DIR => File::Spec->tmpdir(), UNLINK => 1);
315
316 $self->_file($fn,$rev) and $res = $self->_line($fh);
317
318 if (!defined $res) {
319 # retry
320 $self->conn();
321 $self->_file($fn,$rev)
322 or die "No file command send\n";
323 $res = $self->_line($fh);
324 die "No input: $fn $rev\n" unless defined $res;
a57a9493 325 }
c619ad51 326 close ($fh);
a57a9493 327
2eb6d82e 328 return ($name, $res);
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329}
330
331
332package main;
333
2a3e1a85 334my $cvs = CVSconn->new($opt_d, $cvs_tree);
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335
336
337sub pdate($) {
338 my($d) = @_;
339 m#(\d{2,4})/(\d\d)/(\d\d)\s(\d\d):(\d\d)(?::(\d\d))?#
340 or die "Unparseable date: $d\n";
341 my $y=$1; $y-=1900 if $y>1900;
342 return timegm($6||0,$5,$4,$3,$2-1,$y);
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343}
344
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345sub pmode($) {
346 my($mode) = @_;
347 my $m = 0;
348 my $mm = 0;
349 my $um = 0;
350 for my $x(split(//,$mode)) {
351 if($x eq ",") {
352 $m |= $mm&$um;
353 $mm = 0;
354 $um = 0;
355 } elsif($x eq "u") { $um |= 0700;
356 } elsif($x eq "g") { $um |= 0070;
357 } elsif($x eq "o") { $um |= 0007;
358 } elsif($x eq "r") { $mm |= 0444;
359 } elsif($x eq "w") { $mm |= 0222;
360 } elsif($x eq "x") { $mm |= 0111;
361 } elsif($x eq "=") { # do nothing
362 } else { die "Unknown mode: $mode\n";
363 }
364 }
365 $m |= $mm&$um;
366 return $m;
367}
d4f8b390 368
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369sub getwd() {
370 my $pwd = `pwd`;
371 chomp $pwd;
372 return $pwd;
d4f8b390
LT
373}
374
a57a9493
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375-d $git_tree
376 or mkdir($git_tree,0777)
377 or die "Could not create $git_tree: $!";
378chdir($git_tree);
d4f8b390 379
a57a9493 380my $last_branch = "";
46541669 381my $orig_branch = "";
210569f9 382my $forward_master = 0;
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383my %branch_date;
384
385my $git_dir = $ENV{"GIT_DIR"} || ".git";
386$git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#;
387$ENV{"GIT_DIR"} = $git_dir;
79ee456c
SV
388my $orig_git_index;
389$orig_git_index = $ENV{GIT_INDEX_FILE} if exists $ENV{GIT_INDEX_FILE};
390my ($git_ih, $git_index) = tempfile('gitXXXXXX', SUFFIX => '.idx',
391 DIR => File::Spec->tmpdir());
392close ($git_ih);
393$ENV{GIT_INDEX_FILE} = $git_index;
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394unless(-d $git_dir) {
395 system("git-init-db");
396 die "Cannot init the GIT db at $git_tree: $?\n" if $?;
397 system("git-read-tree");
398 die "Cannot init an empty tree: $?\n" if $?;
399
400 $last_branch = $opt_o;
46541669 401 $orig_branch = "";
a57a9493 402} else {
866d1310 403 -f "$git_dir/refs/heads/$opt_o"
4c24e089
MU
404 or die "Branch '$opt_o' does not exist.\n".
405 "Either use the correct '-o branch' option,\n".
406 "or import to a new repository.\n";
407
a57a9493 408 $last_branch = basename(readlink("$git_dir/HEAD"));
46541669
MU
409 unless($last_branch) {
410 warn "Cannot read the last branch name: $! -- assuming 'master'\n";
411 $last_branch = "master";
412 }
413 $orig_branch = $last_branch;
210569f9
SV
414 if (-f "$git_dir/CVS2GIT_HEAD") {
415 die <<EOM;
416CVS2GIT_HEAD exists.
417Make sure your working directory corresponds to HEAD and remove CVS2GIT_HEAD.
418You may need to run
419
420 git-read-tree -m -u CVS2GIT_HEAD HEAD
421EOM
422 }
423 system('cp', "$git_dir/HEAD", "$git_dir/CVS2GIT_HEAD");
424
425 $forward_master =
426 $opt_o ne 'master' && -f "$git_dir/refs/heads/master" &&
427 system('cmp', '-s', "$git_dir/refs/heads/master",
428 "$git_dir/refs/heads/$opt_o") == 0;
a57a9493 429
79ee456c
SV
430 # populate index
431 system('git-read-tree', $last_branch);
17501132 432 die "read-tree failed: $?\n" if $?;
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433
434 # Get the last import timestamps
435 opendir(D,"$git_dir/refs/heads");
436 while(defined(my $head = readdir(D))) {
437 next if $head =~ /^\./;
438 open(F,"$git_dir/refs/heads/$head")
439 or die "Bad head branch: $head: $!\n";
440 chomp(my $ftag = <F>);
441 close(F);
442 open(F,"git-cat-file commit $ftag |");
443 while(<F>) {
444 next unless /^author\s.*\s(\d+)\s[-+]\d{4}$/;
445 $branch_date{$head} = $1;
446 last;
447 }
448 close(F);
449 }
450 closedir(D);
451}
452
453-d $git_dir
454 or die "Could not create git subdir ($git_dir).\n";
455
456my $pid = open(CVS,"-|");
457die "Cannot fork: $!\n" unless defined $pid;
458unless($pid) {
2be4fcc3
MU
459 my @opt;
460 @opt = split(/,/,$opt_p) if defined $opt_p;
28537171 461 unshift @opt, '-z', $opt_z if defined $opt_z;
6e7e37b0 462 exec("cvsps",@opt,"-u","-A","--cvs-direct",'--root',$opt_d,$cvs_tree);
a57a9493
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463 die "Could not start cvsps: $!\n";
464}
465
466
467## cvsps output:
468#---------------------
469#PatchSet 314
470#Date: 1999/09/18 13:03:59
471#Author: wkoch
472#Branch: STABLE-BRANCH-1-0
473#Ancestor branch: HEAD
474#Tag: (none)
475#Log:
476# See ChangeLog: Sat Sep 18 13:03:28 CEST 1999 Werner Koch
477#Members:
478# README:1.57->1.57.2.1
479# VERSION:1.96->1.96.2.1
480#
481#---------------------
482
483my $state = 0;
484
485my($patchset,$date,$author,$branch,$ancestor,$tag,$logmsg);
486my(@old,@new);
487my $commit = sub {
488 my $pid;
4abdecbf
MU
489 while(@old) {
490 my @o2;
491 if(@old > 55) {
492 @o2 = splice(@old,0,50);
493 } else {
494 @o2 = @old;
495 @old = ();
496 }
497 system("git-update-cache","--force-remove","--",@o2);
498 die "Cannot remove files: $?\n" if $?;
499 }
500 while(@new) {
501 my @n2;
2eb6d82e
SV
502 if(@new > 12) {
503 @n2 = splice(@new,0,10);
4abdecbf
MU
504 } else {
505 @n2 = @new;
506 @new = ();
507 }
2eb6d82e
SV
508 system("git-update-cache","--add",
509 (map { ('--cacheinfo', @$_) } @n2));
4abdecbf
MU
510 die "Cannot add files: $?\n" if $?;
511 }
a57a9493
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512
513 $pid = open(C,"-|");
514 die "Cannot fork: $!" unless defined $pid;
515 unless($pid) {
516 exec("git-write-tree");
517 die "Cannot exec git-write-tree: $!\n";
518 }
519 chomp(my $tree = <C>);
520 length($tree) == 40
521 or die "Cannot get tree id ($tree): $!\n";
522 close(C)
523 or die "Error running git-write-tree: $?\n";
524 print "Tree ID $tree\n" if $opt_v;
525
526 my $parent = "";
527 if(open(C,"$git_dir/refs/heads/$last_branch")) {
528 chomp($parent = <C>);
529 close(C);
530 length($parent) == 40
531 or die "Cannot get parent id ($parent): $!\n";
532 print "Parent ID $parent\n" if $opt_v;
533 }
534
17501132
SV
535 my $pr = IO::Pipe->new() or die "Cannot open pipe: $!\n";
536 my $pw = IO::Pipe->new() or die "Cannot open pipe: $!\n";
2a3e1a85
MU
537 $pid = fork();
538 die "Fork: $!\n" unless defined $pid;
a57a9493 539 unless($pid) {
2a3e1a85
MU
540 $pr->writer();
541 $pw->reader();
542 dup2($pw->fileno(),0);
543 dup2($pr->fileno(),1);
544 $pr->close();
545 $pw->close();
546
a57a9493
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547 my @par = ();
548 @par = ("-p",$parent) if $parent;
549 exec("env",
550 "GIT_AUTHOR_NAME=$author",
551 "GIT_AUTHOR_EMAIL=$author",
552 "GIT_AUTHOR_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
553 "GIT_COMMITTER_NAME=$author",
554 "GIT_COMMITTER_EMAIL=$author",
555 "GIT_COMMITTER_DATE=".strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date)),
556 "git-commit-tree", $tree,@par);
557 die "Cannot exec git-commit-tree: $!\n";
558 }
2a3e1a85
MU
559 $pw->writer();
560 $pr->reader();
e371046b
MU
561
562 # compatibility with git2cvs
563 substr($logmsg,32767) = "" if length($logmsg) > 32767;
564 $logmsg =~ s/[\s\n]+\z//;
565
566 print $pw "$logmsg\n"
a57a9493 567 or die "Error writing to git-commit-tree: $!\n";
2a3e1a85
MU
568 $pw->close();
569
8b8840e0 570 print "Committed patch $patchset ($branch ".strftime("%Y-%m-%d %H:%M:%S",gmtime($date)).")\n" if $opt_v;
2a3e1a85 571 chomp(my $cid = <$pr>);
a57a9493
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572 length($cid) == 40
573 or die "Cannot get commit id ($cid): $!\n";
574 print "Commit ID $cid\n" if $opt_v;
2a3e1a85
MU
575 $pr->close();
576
577 waitpid($pid,0);
578 die "Error running git-commit-tree: $?\n" if $?;
a57a9493
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579
580 open(C,">$git_dir/refs/heads/$branch")
581 or die "Cannot open branch $branch for update: $!\n";
582 print C "$cid\n"
583 or die "Cannot write branch $branch for update: $!\n";
584 close(C)
585 or die "Cannot write branch $branch for update: $!\n";
586
587 if($tag) {
588 open(C,">$git_dir/refs/tags/$tag")
589 or die "Cannot create tag $tag: $!\n";
590 print C "$cid\n"
591 or die "Cannot write tag $branch: $!\n";
592 close(C)
593 or die "Cannot write tag $branch: $!\n";
594 print "Created tag '$tag' on '$branch'\n" if $opt_v;
595 }
a57a9493
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596};
597
598while(<CVS>) {
599 chomp;
600 if($state == 0 and /^-+$/) {
601 $state = 1;
602 } elsif($state == 0) {
603 $state = 1;
604 redo;
605 } elsif(($state==0 or $state==1) and s/^PatchSet\s+//) {
606 $patchset = 0+$_;
607 $state=2;
608 } elsif($state == 2 and s/^Date:\s+//) {
609 $date = pdate($_);
610 unless($date) {
611 print STDERR "Could not parse date: $_\n";
612 $state=0;
613 next;
614 }
615 $state=3;
616 } elsif($state == 3 and s/^Author:\s+//) {
617 s/\s+$//;
618 $author = $_;
619 $state = 4;
620 } elsif($state == 4 and s/^Branch:\s+//) {
621 s/\s+$//;
622 $branch = $_;
623 $state = 5;
624 } elsif($state == 5 and s/^Ancestor branch:\s+//) {
625 s/\s+$//;
626 $ancestor = $_;
0fa2824f 627 $ancestor = $opt_o if $ancestor eq "HEAD";
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628 $state = 6;
629 } elsif($state == 5) {
630 $ancestor = undef;
631 $state = 6;
632 redo;
633 } elsif($state == 6 and s/^Tag:\s+//) {
634 s/\s+$//;
635 if($_ eq "(none)") {
636 $tag = undef;
637 } else {
638 $tag = $_;
639 }
640 $state = 7;
641 } elsif($state == 7 and /^Log:/) {
642 $logmsg = "";
643 $state = 8;
644 } elsif($state == 8 and /^Members:/) {
645 $branch = $opt_o if $branch eq "HEAD";
646 if(defined $branch_date{$branch} and $branch_date{$branch} >= $date) {
647 # skip
9da07f34 648 print "skip patchset $patchset: $date before $branch_date{$branch}\n" if $opt_v;
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649 $state = 11;
650 next;
651 }
652 if($ancestor) {
653 if(-f "$git_dir/refs/heads/$branch") {
654 print STDERR "Branch $branch already exists!\n";
655 $state=11;
656 next;
657 }
658 unless(open(H,"$git_dir/refs/heads/$ancestor")) {
659 print STDERR "Branch $ancestor does not exist!\n";
660 $state=11;
661 next;
662 }
663 chomp(my $id = <H>);
664 close(H);
665 unless(open(H,"> $git_dir/refs/heads/$branch")) {
666 print STDERR "Could not create branch $branch: $!\n";
667 $state=11;
668 next;
669 }
670 print H "$id\n"
671 or die "Could not write branch $branch: $!";
672 close(H)
673 or die "Could not write branch $branch: $!";
674 }
675 if(($ancestor || $branch) ne $last_branch) {
2a3e1a85 676 print "Switching from $last_branch to $branch\n" if $opt_v;
46e63efc 677 system("git-read-tree", $branch);
46541669 678 die "read-tree failed: $?\n" if $?;
a57a9493 679 }
46e63efc 680 $last_branch = $branch if $branch ne $last_branch;
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681 $state = 9;
682 } elsif($state == 8) {
683 $logmsg .= "$_\n";
8b8840e0 684 } elsif($state == 9 and /^\s+(.+?):(INITIAL|\d+(?:\.\d+)+)->(\d+(?:\.\d+)+)\s*$/) {
a57a9493 685# VERSION:1.96->1.96.2.1
2a3e1a85 686 my $init = ($2 eq "INITIAL");
a57a9493 687 my $fn = $1;
f65ae603
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688 my $rev = $3;
689 $fn =~ s#^/+##;
2eb6d82e 690 my ($tmpname, $size) = $cvs->file($fn,$rev);
8b8840e0
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691 if($size == -1) {
692 push(@old,$fn);
693 print "Drop $fn\n" if $opt_v;
694 } else {
695 print "".($init ? "New" : "Update")." $fn: $size bytes\n" if $opt_v;
696 open my $F, '-|', "git-hash-object -w $tmpname"
697 or die "Cannot create object: $!\n";
698 my $sha = <$F>;
699 chomp $sha;
700 close $F;
701 my $mode = pmode($cvs->{'mode'});
702 push(@new,[$mode, $sha, $fn]); # may be resurrected!
703 }
2eb6d82e 704 unlink($tmpname);
b0921331 705 } elsif($state == 9 and /^\s+(.+?):\d+(?:\.\d+)+->(\d+(?:\.\d+)+)\(DEAD\)\s*$/) {
f65ae603
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706 my $fn = $1;
707 $fn =~ s#^/+##;
708 push(@old,$fn);
8b8840e0 709 print "Delete $fn\n" if $opt_v;
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710 } elsif($state == 9 and /^\s*$/) {
711 $state = 10;
712 } elsif(($state == 9 or $state == 10) and /^-+$/) {
713 &$commit();
714 $state = 1;
715 } elsif($state == 11 and /^-+$/) {
716 $state = 1;
717 } elsif(/^-+$/) { # end of unknown-line processing
718 $state = 1;
719 } elsif($state != 11) { # ignore stuff when skipping
720 print "* UNKNOWN LINE * $_\n";
721 }
722}
723&$commit() if $branch and $state != 11;
d4f8b390 724
79ee456c
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725unlink($git_index);
726
210569f9
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727if (defined $orig_git_index) {
728 $ENV{GIT_INDEX_FILE} = $orig_git_index;
729} else {
730 delete $ENV{GIT_INDEX_FILE};
731}
732
46541669
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733# Now switch back to the branch we were in before all of this happened
734if($orig_branch) {
79ee456c 735 print "DONE\n" if $opt_v;
210569f9
SV
736 system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
737 if $forward_master;
c1c774e7
SV
738 unless ($opt_i) {
739 system('git-read-tree', '-m', '-u', 'CVS2GIT_HEAD', 'HEAD');
740 die "read-tree failed: $?\n" if $?;
741 }
46541669
MU
742} else {
743 $orig_branch = "master";
744 print "DONE; creating $orig_branch branch\n" if $opt_v;
745 system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
746 unless -f "$git_dir/refs/heads/master";
79ee456c
SV
747 unlink("$git_dir/HEAD");
748 symlink("refs/heads/$orig_branch","$git_dir/HEAD");
c1c774e7
SV
749 unless ($opt_i) {
750 system('git checkout');
751 die "checkout failed: $?\n" if $?;
752 }
46541669 753}
210569f9 754unlink("$git_dir/CVS2GIT_HEAD");