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 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.
15use strict;
17use warnings;
18use Getopt::Std;
19use File::Spec;
20use File::Temp qw(tempfile tmpnam);
21use File::Path qw(mkpath);
22use File::Basename qw(basename dirname);
23use Time::Local;
24use IO::Socket;
25use IO::Pipe;
26use POSIX qw(strftime dup2 ENOENT);
27use IPC::Open2;
28$SIG{'PIPE'}="IGNORE";
30$ENV{'TZ'}="UTC";
31our ($opt_h,$opt_o,$opt_v,$opt_k,$opt_u,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_P, $opt_s,$opt_m,$opt_M,$opt_A,$opt_S,$opt_L, $opt_a);
33my (%conv_author_name, %conv_author_email);
34sub usage() {
36 print STDERR <<END;
37Usage: ${\basename $0} # fetch/update GIT from CVS
38 [-o branch-for-HEAD] [-h] [-v] [-d CVSROOT] [-A author-conv-file]
39 [-p opts-for-cvsps] [-C GIT_repository] [-z fuzz] [-i] [-k] [-u]
40 [-s subst] [-a] [-m] [-M regex] [-S regex] [CVS_module]
41END
42 exit(1);
43}
44sub read_author_info($) {
46 my ($file) = @_;
47 my $user;
48 open my $f, '<', "$file" or die("Failed to open $file: $!\n");
49 while (<$f>) {
51 # Expected format is this:
52 # exon=Andreas Ericsson <ae@op5.se>
53 if (m/^(\S+?)\s*=\s*(.+?)\s*<(.+)>\s*$/) {
54 $user = $1;
55 $conv_author_name{$user} = $2;
56 $conv_author_email{$user} = $3;
57 }
58 # However, we also read from CVSROOT/users format
59 # to ease migration.
60 elsif (/^(\w+):(['"]?)(.+?)\2\s*$/) {
61 my $mapped;
62 ($user, $mapped) = ($1, $3);
63 if ($mapped =~ /^\s*(.*?)\s*<(.*)>\s*$/) {
64 $conv_author_name{$user} = $1;
65 $conv_author_email{$user} = $2;
66 }
67 elsif ($mapped =~ /^<?(.*)>?$/) {
68 $conv_author_name{$user} = $user;
69 $conv_author_email{$user} = $1;
70 }
71 }
72 # NEEDSWORK: Maybe warn on unrecognized lines?
73 }
74 close ($f);
75}
76sub write_author_info($) {
78 my ($file) = @_;
79 open my $f, '>', $file or
80 die("Failed to open $file for writing: $!");
81 foreach (keys %conv_author_name) {
83 print $f "$_=$conv_author_name{$_} <$conv_author_email{$_}>\n";
84 }
85 close ($f);
86}
87getopts("hivmkuo:d:p:C:z:s:M:P:A:S:L:") or usage();
89usage if $opt_h;
90@ARGV <= 1 or usage();
92if ($opt_d) {
94 $ENV{"CVSROOT"} = $opt_d;
95} elsif (-f 'CVS/Root') {
96 open my $f, '<', 'CVS/Root' or die 'Failed to open CVS/Root';
97 $opt_d = <$f>;
98 chomp $opt_d;
99 close $f;
100 $ENV{"CVSROOT"} = $opt_d;
101} elsif ($ENV{"CVSROOT"}) {
102 $opt_d = $ENV{"CVSROOT"};
103} else {
104 die "CVSROOT needs to be set";
105}
106$opt_o ||= "origin";
107$opt_s ||= "-";
108$opt_a ||= 0;
109my $git_tree = $opt_C;
111$git_tree ||= ".";
112my $cvs_tree;
114if ($#ARGV == 0) {
115 $cvs_tree = $ARGV[0];
116} elsif (-f 'CVS/Repository') {
117 open my $f, '<', 'CVS/Repository' or
118 die 'Failed to open CVS/Repository';
119 $cvs_tree = <$f>;
120 chomp $cvs_tree;
121 close $f;
122} else {
123 usage();
124}
125our @mergerx = ();
127if ($opt_m) {
128 @mergerx = ( qr/\W(?:from|of|merge|merging|merged) (\w+)/i );
129}
130if ($opt_M) {
131 push (@mergerx, qr/$opt_M/);
132}
133# Remember UTC of our starting time
135# we'll want to avoid importing commits
136# that are too recent
137our $starttime = time();
138select(STDERR); $|=1; select(STDOUT);
140package CVSconn;
143# Basic CVS dialog.
144# We're only interested in connecting and downloading, so ...
145use File::Spec;
147use File::Temp qw(tempfile);
148use POSIX qw(strftime dup2);
149sub new {
151 my ($what,$repo,$subdir) = @_;
152 $what=ref($what) if ref($what);
153 my $self = {};
155 $self->{'buffer'} = "";
156 bless($self,$what);
157 $repo =~ s#/+$##;
159 $self->{'fullrep'} = $repo;
160 $self->conn();
161 $self->{'subdir'} = $subdir;
163 $self->{'lines'} = undef;
164 return $self;
166}
167sub conn {
169 my $self = shift;
170 my $repo = $self->{'fullrep'};
171 if ($repo =~ s/^:pserver(?:([^:]*)):(?:(.*?)(?::(.*?))?@)?([^:\/]*)(?::(\d*))?//) {
172 my ($param,$user,$pass,$serv,$port) = ($1,$2,$3,$4,$5);
173 my ($proxyhost,$proxyport);
175 if ($param && ($param =~ m/proxy=([^;]+)/)) {
176 $proxyhost = $1;
177 # Default proxyport, if not specified, is 8080.
178 $proxyport = 8080;
179 if ($ENV{"CVS_PROXY_PORT"}) {
180 $proxyport = $ENV{"CVS_PROXY_PORT"};
181 }
182 if ($param =~ m/proxyport=([^;]+)/) {
183 $proxyport = $1;
184 }
185 }
186 $user="anonymous" unless defined $user;
188 my $rr2 = "-";
189 unless ($port) {
190 $rr2 = ":pserver:$user\@$serv:$repo";
191 $port=2401;
192 }
193 my $rr = ":pserver:$user\@$serv:$port$repo";
194 unless ($pass) {
196 open(H,$ENV{'HOME'}."/.cvspass") and do {
197 # :pserver:cvs@mea.tmt.tele.fi:/cvsroot/zmailer Ah<Z
198 while (<H>) {
199 chomp;
200 s/^\/\d+\s+//;
201 my ($w,$p) = split(/\s/,$_,2);
202 if ($w eq $rr or $w eq $rr2) {
203 $pass = $p;
204 last;
205 }
206 }
207 };
208 }
209 $pass="A" unless $pass;
210 my ($s, $rep);
212 if ($proxyhost) {
213 # Use a HTTP Proxy. Only works for HTTP proxies that
215 # don't require user authentication
216 #
217 # See: http://www.ietf.org/rfc/rfc2817.txt
218 $s = IO::Socket::INET->new(PeerHost => $proxyhost, PeerPort => $proxyport);
220 die "Socket to $proxyhost: $!\n" unless defined $s;
221 $s->write("CONNECT $serv:$port HTTP/1.1\r\nHost: $serv:$port\r\n\r\n")
222 or die "Write to $proxyhost: $!\n";
223 $s->flush();
224 $rep = <$s>;
226 # The answer should look like 'HTTP/1.x 2yy ....'
228 if (!($rep =~ m#^HTTP/1\.. 2[0-9][0-9]#)) {
229 die "Proxy connect: $rep\n";
230 }
231 # Skip up to the empty line of the proxy server output
232 # including the response headers.
233 while ($rep = <$s>) {
234 last if (!defined $rep ||
235 $rep eq "\n" ||
236 $rep eq "\r\n");
237 }
238 } else {
239 $s = IO::Socket::INET->new(PeerHost => $serv, PeerPort => $port);
240 die "Socket to $serv: $!\n" unless defined $s;
241 }
242 $s->write("BEGIN AUTH REQUEST\n$repo\n$user\n$pass\nEND AUTH REQUEST\n")
244 or die "Write to $serv: $!\n";
245 $s->flush();
246 $rep = <$s>;
248 if ($rep ne "I LOVE YOU\n") {
250 $rep="<unknown>" unless $rep;
251 die "AuthReply: $rep\n";
252 }
253 $self->{'socketo'} = $s;
254 $self->{'socketi'} = $s;
255 } else { # local or ext: Fork off our own cvs server.
256 my $pr = IO::Pipe->new();
257 my $pw = IO::Pipe->new();
258 my $pid = fork();
259 die "Fork: $!\n" unless defined $pid;
260 my $cvs = 'cvs';
261 $cvs = $ENV{CVS_SERVER} if exists $ENV{CVS_SERVER};
262 my $rsh = 'rsh';
263 $rsh = $ENV{CVS_RSH} if exists $ENV{CVS_RSH};
264 my @cvs = ($cvs, 'server');
266 my ($local, $user, $host);
267 $local = $repo =~ s/:local://;
268 if (!$local) {
269 $repo =~ s/:ext://;
270 $local = !($repo =~ s/^(?:([^\@:]+)\@)?([^:]+)://);
271 ($user, $host) = ($1, $2);
272 }
273 if (!$local) {
274 if ($user) {
275 unshift @cvs, $rsh, '-l', $user, $host;
276 } else {
277 unshift @cvs, $rsh, $host;
278 }
279 }
280 unless ($pid) {
282 $pr->writer();
283 $pw->reader();
284 dup2($pw->fileno(),0);
285 dup2($pr->fileno(),1);
286 $pr->close();
287 $pw->close();
288 exec(@cvs);
289 }
290 $pw->writer();
291 $pr->reader();
292 $self->{'socketo'} = $pw;
293 $self->{'socketi'} = $pr;
294 }
295 $self->{'socketo'}->write("Root $repo\n");
296 # Trial and error says that this probably is the minimum set
298 $self->{'socketo'}->write("Valid-responses ok error Valid-requests Mode M Mbinary E Checked-in Created Updated Merged Removed\n");
299 $self->{'socketo'}->write("valid-requests\n");
301 $self->{'socketo'}->flush();
302 chomp(my $rep=$self->readline());
304 if ($rep !~ s/^Valid-requests\s*//) {
305 $rep="<unknown>" unless $rep;
306 die "Expected Valid-requests from server, but got: $rep\n";
307 }
308 chomp(my $res=$self->readline());
309 die "validReply: $res\n" if $res ne "ok";
310 $self->{'socketo'}->write("UseUnchanged\n") if $rep =~ /\bUseUnchanged\b/;
312 $self->{'repo'} = $repo;
313}
314sub readline {
316 my ($self) = @_;
317 return $self->{'socketi'}->getline();
318}
319sub _file {
321 # Request a file with a given revision.
322 # Trial and error says this is a good way to do it. :-/
323 my ($self,$fn,$rev) = @_;
324 $self->{'socketo'}->write("Argument -N\n") or return undef;
325 $self->{'socketo'}->write("Argument -P\n") or return undef;
326 # -kk: Linus' version doesn't use it - defaults to off
327 if ($opt_k) {
328 $self->{'socketo'}->write("Argument -kk\n") or return undef;
329 }
330 $self->{'socketo'}->write("Argument -r\n") or return undef;
331 $self->{'socketo'}->write("Argument $rev\n") or return undef;
332 $self->{'socketo'}->write("Argument --\n") or return undef;
333 $self->{'socketo'}->write("Argument $self->{'subdir'}/$fn\n") or return undef;
334 $self->{'socketo'}->write("Directory .\n") or return undef;
335 $self->{'socketo'}->write("$self->{'repo'}\n") or return undef;
336 # $self->{'socketo'}->write("Sticky T1.0\n") or return undef;
337 $self->{'socketo'}->write("co\n") or return undef;
338 $self->{'socketo'}->flush() or return undef;
339 $self->{'lines'} = 0;
340 return 1;
341}
342sub _line {
343 # Read a line from the server.
344 # ... except that 'line' may be an entire file. ;-)
345 my ($self, $fh) = @_;
346 die "Not in lines" unless defined $self->{'lines'};
347 my $line;
349 my $res=0;
350 while (defined($line = $self->readline())) {
351 # M U gnupg-cvs-rep/AUTHORS
352 # Updated gnupg-cvs-rep/
353 # /daten/src/rsync/gnupg-cvs-rep/AUTHORS
354 # /AUTHORS/1.1///T1.1
355 # u=rw,g=rw,o=rw
356 # 0
357 # ok
358 if ($line =~ s/^(?:Created|Updated) //) {
360 $line = $self->readline(); # path
361 $line = $self->readline(); # Entries line
362 my $mode = $self->readline(); chomp $mode;
363 $self->{'mode'} = $mode;
364 defined (my $cnt = $self->readline())
365 or die "EOF from server after 'Changed'\n";
366 chomp $cnt;
367 die "Duh: Filesize $cnt" if $cnt !~ /^\d+$/;
368 $line="";
369 $res = $self->_fetchfile($fh, $cnt);
370 } elsif ($line =~ s/^ //) {
371 print $fh $line;
372 $res += length($line);
373 } elsif ($line =~ /^M\b/) {
374 # output, do nothing
375 } elsif ($line =~ /^Mbinary\b/) {
376 my $cnt;
377 die "EOF from server after 'Mbinary'" unless defined ($cnt = $self->readline());
378 chomp $cnt;
379 die "Duh: Mbinary $cnt" if $cnt !~ /^\d+$/ or $cnt<1;
380 $line="";
381 $res += $self->_fetchfile($fh, $cnt);
382 } else {
383 chomp $line;
384 if ($line eq "ok") {
385 # print STDERR "S: ok (".length($res).")\n";
386 return $res;
387 } elsif ($line =~ s/^E //) {
388 # print STDERR "S: $line\n";
389 } elsif ($line =~ /^(Remove-entry|Removed) /i) {
390 $line = $self->readline(); # filename
391 $line = $self->readline(); # OK
392 chomp $line;
393 die "Unknown: $line" if $line ne "ok";
394 return -1;
395 } else {
396 die "Unknown: $line\n";
397 }
398 }
399 }
400 return undef;
401}
402sub file {
403 my ($self,$fn,$rev) = @_;
404 my $res;
405 my ($fh, $name) = tempfile('gitcvs.XXXXXX',
407 DIR => File::Spec->tmpdir(), UNLINK => 1);
408 $self->_file($fn,$rev) and $res = $self->_line($fh);
410 if (!defined $res) {
412 print STDERR "Server has gone away while fetching $fn $rev, retrying...\n";
413 truncate $fh, 0;
414 $self->conn();
415 $self->_file($fn,$rev) or die "No file command send";
416 $res = $self->_line($fh);
417 die "Retry failed" unless defined $res;
418 }
419 close ($fh);
420 return ($name, $res);
422}
423sub _fetchfile {
424 my ($self, $fh, $cnt) = @_;
425 my $res = 0;
426 my $bufsize = 1024 * 1024;
427 while ($cnt) {
428 if ($bufsize > $cnt) {
429 $bufsize = $cnt;
430 }
431 my $buf;
432 my $num = $self->{'socketi'}->read($buf,$bufsize);
433 die "Server: Filesize $cnt: $num: $!\n" if not defined $num or $num<=0;
434 print $fh $buf;
435 $res += $num;
436 $cnt -= $num;
437 }
438 return $res;
439}
440package main;
443my $cvs = CVSconn->new($opt_d, $cvs_tree);
445sub pdate($) {
448 my ($d) = @_;
449 m#(\d{2,4})/(\d\d)/(\d\d)\s(\d\d):(\d\d)(?::(\d\d))?#
450 or die "Unparseable date: $d\n";
451 my $y=$1; $y-=1900 if $y>1900;
452 return timegm($6||0,$5,$4,$3,$2-1,$y);
453}
454sub pmode($) {
456 my ($mode) = @_;
457 my $m = 0;
458 my $mm = 0;
459 my $um = 0;
460 for my $x(split(//,$mode)) {
461 if ($x eq ",") {
462 $m |= $mm&$um;
463 $mm = 0;
464 $um = 0;
465 } elsif ($x eq "u") { $um |= 0700;
466 } elsif ($x eq "g") { $um |= 0070;
467 } elsif ($x eq "o") { $um |= 0007;
468 } elsif ($x eq "r") { $mm |= 0444;
469 } elsif ($x eq "w") { $mm |= 0222;
470 } elsif ($x eq "x") { $mm |= 0111;
471 } elsif ($x eq "=") { # do nothing
472 } else { die "Unknown mode: $mode\n";
473 }
474 }
475 $m |= $mm&$um;
476 return $m;
477}
478sub getwd() {
480 my $pwd = `pwd`;
481 chomp $pwd;
482 return $pwd;
483}
484sub is_sha1 {
486 my $s = shift;
487 return $s =~ /^[a-f0-9]{40}$/;
488}
489sub get_headref ($$) {
491 my $name = shift;
492 my $git_dir = shift;
493
494 my $f = "$git_dir/refs/heads/$name";
495 if (open(my $fh, $f)) {
496 chomp(my $r = <$fh>);
497 is_sha1($r) or die "Cannot get head id for $name ($r): $!";
498 return $r;
499 }
500 die "unable to open $f: $!" unless $! == POSIX::ENOENT;
501 return undef;
502}
503-d $git_tree
505 or mkdir($git_tree,0777)
506 or die "Could not create $git_tree: $!";
507chdir($git_tree);
508my $last_branch = "";
510my $orig_branch = "";
511my %branch_date;
512my $tip_at_start = undef;
513my $git_dir = $ENV{"GIT_DIR"} || ".git";
515$git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#;
516$ENV{"GIT_DIR"} = $git_dir;
517my $orig_git_index;
518$orig_git_index = $ENV{GIT_INDEX_FILE} if exists $ENV{GIT_INDEX_FILE};
519my %index; # holds filenames of one index per branch
521unless (-d $git_dir) {
523 system("git-init");
524 die "Cannot init the GIT db at $git_tree: $?\n" if $?;
525 system("git-read-tree");
526 die "Cannot init an empty tree: $?\n" if $?;
527 $last_branch = $opt_o;
529 $orig_branch = "";
530} else {
531 -f "$git_dir/refs/heads/$opt_o"
532 or die "Branch '$opt_o' does not exist.\n".
533 "Either use the correct '-o branch' option,\n".
534 "or import to a new repository.\n";
535 open(F, "git-symbolic-ref HEAD |") or
537 die "Cannot run git-symbolic-ref: $!\n";
538 chomp ($last_branch = <F>);
539 $last_branch = basename($last_branch);
540 close(F);
541 unless ($last_branch) {
542 warn "Cannot read the last branch name: $! -- assuming 'master'\n";
543 $last_branch = "master";
544 }
545 $orig_branch = $last_branch;
546 $tip_at_start = `git-rev-parse --verify HEAD`;
547 # Get the last import timestamps
549 my $fmt = '($ref, $author) = (%(refname), %(author));';
550 open(H, "git-for-each-ref --perl --format='$fmt' refs/heads |") or
551 die "Cannot run git-for-each-ref: $!\n";
552 while (defined(my $entry = <H>)) {
553 my ($ref, $author);
554 eval($entry) || die "cannot eval refs list: $@";
555 my ($head) = ($ref =~ m|^refs/heads/(.*)|);
556 $author =~ /^.*\s(\d+)\s[-+]\d{4}$/;
557 $branch_date{$head} = $1;
558 }
559 close(H);
560}
561-d $git_dir
563 or die "Could not create git subdir ($git_dir).\n";
564# now we read (and possibly save) author-info as well
566-f "$git_dir/cvs-authors" and
567 read_author_info("$git_dir/cvs-authors");
568if ($opt_A) {
569 read_author_info($opt_A);
570 write_author_info("$git_dir/cvs-authors");
571}
572#
575# run cvsps into a file unless we are getting
576# it passed as a file via $opt_P
577#
578my $cvspsfile;
579unless ($opt_P) {
580 print "Running cvsps...\n" if $opt_v;
581 my $pid = open(CVSPS,"-|");
582 my $cvspsfh;
583 die "Cannot fork: $!\n" unless defined $pid;
584 unless ($pid) {
585 my @opt;
586 @opt = split(/,/,$opt_p) if defined $opt_p;
587 unshift @opt, '-z', $opt_z if defined $opt_z;
588 unshift @opt, '-q' unless defined $opt_v;
589 unless (defined($opt_p) && $opt_p =~ m/--no-cvs-direct/) {
590 push @opt, '--cvs-direct';
591 }
592 exec("cvsps","--norc",@opt,"-u","-A",'--root',$opt_d,$cvs_tree);
593 die "Could not start cvsps: $!\n";
594 }
595 ($cvspsfh, $cvspsfile) = tempfile('gitXXXXXX', SUFFIX => '.cvsps',
596 DIR => File::Spec->tmpdir());
597 while (<CVSPS>) {
598 print $cvspsfh $_;
599 }
600 close CVSPS;
601 close $cvspsfh;
602} else {
603 $cvspsfile = $opt_P;
604}
605open(CVS, "<$cvspsfile") or die $!;
607## cvsps output:
609#---------------------
610#PatchSet 314
611#Date: 1999/09/18 13:03:59
612#Author: wkoch
613#Branch: STABLE-BRANCH-1-0
614#Ancestor branch: HEAD
615#Tag: (none)
616#Log:
617# See ChangeLog: Sat Sep 18 13:03:28 CEST 1999 Werner Koch
618#Members:
619# README:1.57->1.57.2.1
620# VERSION:1.96->1.96.2.1
621#
622#---------------------
623my $state = 0;
625sub update_index (\@\@) {
627 my $old = shift;
628 my $new = shift;
629 open(my $fh, '|-', qw(git-update-index -z --index-info))
630 or die "unable to open git-update-index: $!";
631 print $fh
632 (map { "0 0000000000000000000000000000000000000000\t$_\0" }
633 @$old),
634 (map { '100' . sprintf('%o', $_->[0]) . " $_->[1]\t$_->[2]\0" }
635 @$new)
636 or die "unable to write to git-update-index: $!";
637 close $fh
638 or die "unable to write to git-update-index: $!";
639 $? and die "git-update-index reported error: $?";
640}
641sub write_tree () {
643 open(my $fh, '-|', qw(git-write-tree))
644 or die "unable to open git-write-tree: $!";
645 chomp(my $tree = <$fh>);
646 is_sha1($tree)
647 or die "Cannot get tree id ($tree): $!";
648 close($fh)
649 or die "Error running git-write-tree: $?\n";
650 print "Tree ID $tree\n" if $opt_v;
651 return $tree;
652}
653my ($patchset,$date,$author_name,$author_email,$branch,$ancestor,$tag,$logmsg);
655my (@old,@new,@skipped,%ignorebranch);
656# commits that cvsps cannot place anywhere...
658$ignorebranch{'#CVSPS_NO_BRANCH'} = 1;
659sub commit {
661 if ($branch eq $opt_o && !$index{branch} && !get_headref($branch, $git_dir)) {
662 # looks like an initial commit
663 # use the index primed by git-init
664 $ENV{GIT_INDEX_FILE} = '.git/index';
665 $index{$branch} = '.git/index';
666 } else {
667 # use an index per branch to speed up
668 # imports of projects with many branches
669 unless ($index{$branch}) {
670 $index{$branch} = tmpnam();
671 $ENV{GIT_INDEX_FILE} = $index{$branch};
672 if ($ancestor) {
673 system("git-read-tree", $ancestor);
674 } else {
675 system("git-read-tree", $branch);
676 }
677 die "read-tree failed: $?\n" if $?;
678 }
679 }
680 $ENV{GIT_INDEX_FILE} = $index{$branch};
681 update_index(@old, @new);
683 @old = @new = ();
684 my $tree = write_tree();
685 my $parent = get_headref($last_branch, $git_dir);
686 print "Parent ID " . ($parent ? $parent : "(empty)") . "\n" if $opt_v;
687 my @commit_args;
689 push @commit_args, ("-p", $parent) if $parent;
690 # loose detection of merges
692 # based on the commit msg
693 foreach my $rx (@mergerx) {
694 next unless $logmsg =~ $rx && $1;
695 my $mparent = $1 eq 'HEAD' ? $opt_o : $1;
696 if (my $sha1 = get_headref($mparent, $git_dir)) {
697 push @commit_args, '-p', $mparent;
698 print "Merge parent branch: $mparent\n" if $opt_v;
699 }
700 }
701 my $commit_date = strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date));
703 $ENV{GIT_AUTHOR_NAME} = $author_name;
704 $ENV{GIT_AUTHOR_EMAIL} = $author_email;
705 $ENV{GIT_AUTHOR_DATE} = $commit_date;
706 $ENV{GIT_COMMITTER_NAME} = $author_name;
707 $ENV{GIT_COMMITTER_EMAIL} = $author_email;
708 $ENV{GIT_COMMITTER_DATE} = $commit_date;
709 my $pid = open2(my $commit_read, my $commit_write,
710 'git-commit-tree', $tree, @commit_args);
711 # compatibility with git2cvs
713 substr($logmsg,32767) = "" if length($logmsg) > 32767;
714 $logmsg =~ s/[\s\n]+\z//;
715 if (@skipped) {
717 $logmsg .= "\n\n\nSKIPPED:\n\t";
718 $logmsg .= join("\n\t", @skipped) . "\n";
719 @skipped = ();
720 }
721 print($commit_write "$logmsg\n") && close($commit_write)
723 or die "Error writing to git-commit-tree: $!\n";
724 print "Committed patch $patchset ($branch $commit_date)\n" if $opt_v;
726 chomp(my $cid = <$commit_read>);
727 is_sha1($cid) or die "Cannot get commit id ($cid): $!\n";
728 print "Commit ID $cid\n" if $opt_v;
729 close($commit_read);
730 waitpid($pid,0);
732 die "Error running git-commit-tree: $?\n" if $?;
733 system("git-update-ref refs/heads/$branch $cid") == 0
735 or die "Cannot write branch $branch for update: $!\n";
736 if ($tag) {
738 my ($in, $out) = ('','');
739 my ($xtag) = $tag;
740 $xtag =~ s/\s+\*\*.*$//; # Remove stuff like ** INVALID ** and ** FUNKY **
741 $xtag =~ tr/_/\./ if ( $opt_u );
742 $xtag =~ s/[\/]/$opt_s/g;
743
744 my $pid = open2($in, $out, 'git-mktag');
745 print $out "object $cid\n".
746 "type commit\n".
747 "tag $xtag\n".
748 "tagger $author_name <$author_email>\n"
749 or die "Cannot create tag object $xtag: $!\n";
750 close($out)
751 or die "Cannot create tag object $xtag: $!\n";
752 my $tagobj = <$in>;
754 chomp $tagobj;
755 if ( !close($in) or waitpid($pid, 0) != $pid or
757 $? != 0 or $tagobj !~ /^[0123456789abcdef]{40}$/ ) {
758 die "Cannot create tag object $xtag: $!\n";
759 }
760
761 open(C,">$git_dir/refs/tags/$xtag")
763 or die "Cannot create tag $xtag: $!\n";
764 print C "$tagobj\n"
765 or die "Cannot write tag $xtag: $!\n";
766 close(C)
767 or die "Cannot write tag $xtag: $!\n";
768 print "Created tag '$xtag' on '$branch'\n" if $opt_v;
770 }
771};
772my $commitcount = 1;
774while (<CVS>) {
775 chomp;
776 if ($state == 0 and /^-+$/) {
777 $state = 1;
778 } elsif ($state == 0) {
779 $state = 1;
780 redo;
781 } elsif (($state==0 or $state==1) and s/^PatchSet\s+//) {
782 $patchset = 0+$_;
783 $state=2;
784 } elsif ($state == 2 and s/^Date:\s+//) {
785 $date = pdate($_);
786 unless ($date) {
787 print STDERR "Could not parse date: $_\n";
788 $state=0;
789 next;
790 }
791 $state=3;
792 } elsif ($state == 3 and s/^Author:\s+//) {
793 s/\s+$//;
794 if (/^(.*?)\s+<(.*)>/) {
795 ($author_name, $author_email) = ($1, $2);
796 } elsif ($conv_author_name{$_}) {
797 $author_name = $conv_author_name{$_};
798 $author_email = $conv_author_email{$_};
799 } else {
800 $author_name = $author_email = $_;
801 }
802 $state = 4;
803 } elsif ($state == 4 and s/^Branch:\s+//) {
804 s/\s+$//;
805 s/[\/]/$opt_s/g;
806 $branch = $_;
807 $state = 5;
808 } elsif ($state == 5 and s/^Ancestor branch:\s+//) {
809 s/\s+$//;
810 $ancestor = $_;
811 $ancestor = $opt_o if $ancestor eq "HEAD";
812 $state = 6;
813 } elsif ($state == 5) {
814 $ancestor = undef;
815 $state = 6;
816 redo;
817 } elsif ($state == 6 and s/^Tag:\s+//) {
818 s/\s+$//;
819 if ($_ eq "(none)") {
820 $tag = undef;
821 } else {
822 $tag = $_;
823 }
824 $state = 7;
825 } elsif ($state == 7 and /^Log:/) {
826 $logmsg = "";
827 $state = 8;
828 } elsif ($state == 8 and /^Members:/) {
829 $branch = $opt_o if $branch eq "HEAD";
830 if (defined $branch_date{$branch} and $branch_date{$branch} >= $date) {
831 # skip
832 print "skip patchset $patchset: $date before $branch_date{$branch}\n" if $opt_v;
833 $state = 11;
834 next;
835 }
836 if (!$opt_a && $starttime - 300 - (defined $opt_z ? $opt_z : 300) <= $date) {
837 # skip if the commit is too recent
838 # that the cvsps default fuzz is 300s, we give ourselves another
839 # 300s just in case -- this also prevents skipping commits
840 # due to server clock drift
841 print "skip patchset $patchset: $date too recent\n" if $opt_v;
842 $state = 11;
843 next;
844 }
845 if (exists $ignorebranch{$branch}) {
846 print STDERR "Skipping $branch\n";
847 $state = 11;
848 next;
849 }
850 if ($ancestor) {
851 if ($ancestor eq $branch) {
852 print STDERR "Branch $branch erroneously stems from itself -- changed ancestor to $opt_o\n";
853 $ancestor = $opt_o;
854 }
855 if (-f "$git_dir/refs/heads/$branch") {
856 print STDERR "Branch $branch already exists!\n";
857 $state=11;
858 next;
859 }
860 unless (open(H,"$git_dir/refs/heads/$ancestor")) {
861 print STDERR "Branch $ancestor does not exist!\n";
862 $ignorebranch{$branch} = 1;
863 $state=11;
864 next;
865 }
866 chomp(my $id = <H>);
867 close(H);
868 unless (open(H,"> $git_dir/refs/heads/$branch")) {
869 print STDERR "Could not create branch $branch: $!\n";
870 $ignorebranch{$branch} = 1;
871 $state=11;
872 next;
873 }
874 print H "$id\n"
875 or die "Could not write branch $branch: $!";
876 close(H)
877 or die "Could not write branch $branch: $!";
878 }
879 $last_branch = $branch if $branch ne $last_branch;
880 $state = 9;
881 } elsif ($state == 8) {
882 $logmsg .= "$_\n";
883 } elsif ($state == 9 and /^\s+(.+?):(INITIAL|\d+(?:\.\d+)+)->(\d+(?:\.\d+)+)\s*$/) {
884# VERSION:1.96->1.96.2.1
885 my $init = ($2 eq "INITIAL");
886 my $fn = $1;
887 my $rev = $3;
888 $fn =~ s#^/+##;
889 if ($opt_S && $fn =~ m/$opt_S/) {
890 print "SKIPPING $fn v $rev\n";
891 push(@skipped, $fn);
892 next;
893 }
894 print "Fetching $fn v $rev\n" if $opt_v;
895 my ($tmpname, $size) = $cvs->file($fn,$rev);
896 if ($size == -1) {
897 push(@old,$fn);
898 print "Drop $fn\n" if $opt_v;
899 } else {
900 print "".($init ? "New" : "Update")." $fn: $size bytes\n" if $opt_v;
901 my $pid = open(my $F, '-|');
902 die $! unless defined $pid;
903 if (!$pid) {
904 exec("git-hash-object", "-w", $tmpname)
905 or die "Cannot create object: $!\n";
906 }
907 my $sha = <$F>;
908 chomp $sha;
909 close $F;
910 my $mode = pmode($cvs->{'mode'});
911 push(@new,[$mode, $sha, $fn]); # may be resurrected!
912 }
913 unlink($tmpname);
914 } elsif ($state == 9 and /^\s+(.+?):\d+(?:\.\d+)+->(\d+(?:\.\d+)+)\(DEAD\)\s*$/) {
915 my $fn = $1;
916 $fn =~ s#^/+##;
917 push(@old,$fn);
918 print "Delete $fn\n" if $opt_v;
919 } elsif ($state == 9 and /^\s*$/) {
920 $state = 10;
921 } elsif (($state == 9 or $state == 10) and /^-+$/) {
922 $commitcount++;
923 if ($opt_L && $commitcount > $opt_L) {
924 last;
925 }
926 commit();
927 if (($commitcount & 1023) == 0) {
928 system("git repack -a -d");
929 }
930 $state = 1;
931 } elsif ($state == 11 and /^-+$/) {
932 $state = 1;
933 } elsif (/^-+$/) { # end of unknown-line processing
934 $state = 1;
935 } elsif ($state != 11) { # ignore stuff when skipping
936 print "* UNKNOWN LINE * $_\n";
937 }
938}
939commit() if $branch and $state != 11;
940unless ($opt_P) {
942 unlink($cvspsfile);
943}
944# The heuristic of repacking every 1024 commits can leave a
946# lot of unpacked data. If there is more than 1MB worth of
947# not-packed objects, repack once more.
948my $line = `git-count-objects`;
949if ($line =~ /^(\d+) objects, (\d+) kilobytes$/) {
950 my ($n_objects, $kb) = ($1, $2);
951 1024 < $kb
952 and system("git repack -a -d");
953}
954foreach my $git_index (values %index) {
956 if ($git_index ne '.git/index') {
957 unlink($git_index);
958 }
959}
960if (defined $orig_git_index) {
962 $ENV{GIT_INDEX_FILE} = $orig_git_index;
963} else {
964 delete $ENV{GIT_INDEX_FILE};
965}
966# Now switch back to the branch we were in before all of this happened
968if ($orig_branch) {
969 print "DONE.\n" if $opt_v;
970 if ($opt_i) {
971 exit 0;
972 }
973 my $tip_at_end = `git-rev-parse --verify HEAD`;
974 if ($tip_at_start ne $tip_at_end) {
975 for ($tip_at_start, $tip_at_end) { chomp; }
976 print "Fetched into the current branch.\n" if $opt_v;
977 system(qw(git-read-tree -u -m),
978 $tip_at_start, $tip_at_end);
979 die "Fast-forward update failed: $?\n" if $?;
980 }
981 else {
982 system(qw(git-merge cvsimport HEAD), "refs/heads/$opt_o");
983 die "Could not merge $opt_o into the current branch.\n" if $?;
984 }
985} else {
986 $orig_branch = "master";
987 print "DONE; creating $orig_branch branch\n" if $opt_v;
988 system("git-update-ref", "refs/heads/master", "refs/heads/$opt_o")
989 unless -f "$git_dir/refs/heads/master";
990 system('git-update-ref', 'HEAD', "$orig_branch");
991 unless ($opt_i) {
992 system('git checkout');
993 die "checkout failed: $?\n" if $?;
994 }
995}