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# http://raw.no/personal/blog |
# http://raw.no/personal/blog |
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# |
# |
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# 2004-03-09 Dobrica Pavlinusic <dpavlin@rot13.org> |
# 2004-03-09 Dobrica Pavlinusic <dpavlin@rot13.org> |
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# |
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# documentation is after __END__ |
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|
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use strict; |
use strict; |
15 |
use File::Temp qw/ tempdir /; |
use File::Temp qw/ tempdir /; |
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use File::Path; |
17 |
use Data::Dumper; |
use Data::Dumper; |
18 |
use XML::Simple; |
use XML::Simple; |
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|
20 |
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# do we want to sync just part of repository? |
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my $partial_import = 1; |
22 |
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|
23 |
if (@ARGV < 2) { |
if (@ARGV < 2) { |
24 |
print "usage: $0 SVN_URL CVSROOT CVSREPOSITORY\n"; |
print "usage: $0 SVN_URL CVSROOT CVSREPOSITORY\n"; |
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exit 1; |
exit 1; |
32 |
exit 1; |
exit 1; |
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} |
} |
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|
35 |
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# Ensure File::Temp::END can clean up: |
36 |
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$SIG{__DIE__} = sub { chdir("/tmp"); die @_ }; |
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|
38 |
my $TMPDIR=tempdir( "/tmp/checkoutXXXXX", CLEANUP => 1 ); |
my $TMPDIR=tempdir( "/tmp/checkoutXXXXX", CLEANUP => 1 ); |
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|
40 |
chdir($TMPDIR) || die "can't cd to $TMPDIR: $!"; |
sub cd_tmp { |
41 |
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chdir($TMPDIR) || die "can't cd to $TMPDIR: $!"; |
42 |
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} |
43 |
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44 |
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sub cd_rep { |
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chdir("$TMPDIR/$CVSREP") || die "can't cd to $TMPDIR/$CVSREP: $!"; |
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} |
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print "## using TMPDIR $TMPDIR\n"; |
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|
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# cvs command with root |
# cvs command with root |
51 |
my $cvs="cvs -d $CVSROOT"; |
my $cvs="cvs -f -d $CVSROOT"; |
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|
53 |
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# current revision in CVS |
54 |
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my $rev; |
55 |
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|
56 |
# |
# |
57 |
# sub to do logging and system calls |
# sub to do logging and system calls |
78 |
my $path=".svnrev"; |
my $path=".svnrev"; |
79 |
|
|
80 |
if ($add_new) { |
if ($add_new) { |
81 |
system "$cvs add $path" || die "cvs add of $path failed: $!"; |
system "$cvs add '$path'" || die "cvs add of $path failed: $!"; |
82 |
} else { |
} else { |
83 |
my $msg="subversion revision $rev commited to CVS"; |
my $msg="subversion revision $rev commited to CVS"; |
84 |
print "$msg\n"; |
print "$msg\n"; |
85 |
system "$cvs commit -m '$msg' $path" || die "cvs commit of $path failed: $!"; |
system "$cvs commit -m '$msg' '$path'" || die "cvs commit of $path failed: $!"; |
86 |
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} |
87 |
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} |
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89 |
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sub add_dir($$) { |
90 |
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my ($path,$msg) = @_; |
91 |
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print "# add_dir($path)\n"; |
92 |
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die "add_dir($path) is not directory" unless (-d $path); |
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94 |
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my $curr_dir; |
95 |
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96 |
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foreach my $d (split(m#/#, $path)) { |
97 |
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$curr_dir .= ( $curr_dir ? '/' : '') . $d; |
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99 |
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next if in_entries($curr_dir); |
100 |
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next if (-e "$curr_dir/CVS"); |
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102 |
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log_system("$cvs add '$curr_dir'", "cvs add of $curr_dir failed"); |
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} |
} |
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} |
} |
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|
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# ok, now do the checkout |
# ok, now do the checkout |
107 |
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eval { |
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cd_tmp; |
109 |
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log_system("$cvs -q checkout $CVSREP", "cvs checkout failed"); |
110 |
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}; |
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|
112 |
log_system("$cvs -q checkout $CVSREP", "cvs checkout failed"); |
if ($@) { |
113 |
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print <<_NEW_REP_; |
114 |
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|
115 |
chdir($CVSREP) || die "can't cd to $TMPDIR/$CVSREP: $!"; |
There is no CVS repository '$CVSREP' in your CVS. I will assume that |
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this is import of new module in your CVS and start from revision 0. |
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Press enter to continue importing new CVS repository or CTRL+C to abort. |
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my $rev; |
_NEW_REP_ |
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122 |
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print "start import of new module [yes]: "; |
123 |
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my $in = <STDIN>; |
124 |
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cd_tmp; |
125 |
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mkdir($CVSREP) || die "can't create $CVSREP: $!"; |
126 |
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cd_rep; |
127 |
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128 |
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open(SVNREV,"> .svnrev") || die "can't open $CVSREP/.svnrev: $!"; |
129 |
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print SVNREV "0"; |
130 |
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close(SVNREV); |
131 |
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$rev = 0; |
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# create new module |
135 |
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cd_rep; |
136 |
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log_system("$cvs import -d -m 'new CVS module' $CVSREP svn r$rev", "import of new repository"); |
137 |
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cd_tmp; |
138 |
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rmtree($CVSREP) || die "can't remove $CVSREP"; |
139 |
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log_system("$cvs -q checkout $CVSREP", "cvs checkout failed"); |
140 |
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cd_rep; |
141 |
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|
142 |
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} else { |
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# import into existing module directory in CVS |
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|
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# check if svnrev exists |
cd_rep; |
146 |
if (! -e ".svnrev") { |
# check if svnrev exists |
147 |
print <<_USAGE_; |
if (! -e ".svnrev") { |
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print <<_USAGE_; |
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|
150 |
Your CVS repository doesn't have .svnrev file! |
Your CVS repository doesn't have .svnrev file! |
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|
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This file is used to keep CVS repository and SubVersion in sync, so |
This file is used to keep CVS repository and Subversion in sync, so |
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that only newer changes will be commited. |
that only newer changes will be commited. |
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|
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It's quote possible that this is first svn2cvs run for this repository. |
It's quote possible that this is first svn2cvs run for this repository. |
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been checkouted. |
been checkouted. |
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|
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If you migrated your cvs repository to svn using cvs2svn, this will be |
If you migrated your cvs repository to svn using cvs2svn, this will be |
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last SubVersion revision. If this is initial run of conversion of |
last Subversion revision. If this is initial run of conversion of |
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SubVersion repository to CVS, correct revision is 0. |
Subversion repository to CVS, correct revision is 0. |
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164 |
_USAGE_ |
_USAGE_ |
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166 |
print "svn revision corresponding to CVS [abort]: "; |
print "svn revision corresponding to CVS [abort]: "; |
167 |
my $in = <STDIN>; |
my $in = <STDIN>; |
168 |
chomp($in); |
chomp($in); |
169 |
if ($in !~ /^\d+$/) { |
if ($in !~ /^\d+$/) { |
170 |
print "Aborting: revision not a number\n"; |
print "Aborting: revision not a number\n"; |
171 |
exit 1; |
exit 1; |
172 |
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} else { |
173 |
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$rev = $in; |
174 |
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commit_svnrev($rev,1); # create new |
175 |
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} |
176 |
} else { |
} else { |
177 |
$rev = $in; |
open(SVNREV,".svnrev") || die "can't open $TMPDIR/$CVSREP/.svnrev: $!"; |
178 |
commit_svnrev($rev,1); # create new |
$rev = <SVNREV>; |
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chomp($rev); |
180 |
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close(SVNREV); |
181 |
} |
} |
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} else { |
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open(SVNREV,".svnrev") || die "can't open $TMPDIR/$CVSREP/.svnrev: $!"; |
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$rev = <SVNREV>; |
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chomp($rev); |
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close(SVNREV); |
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} |
|
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|
183 |
print "Starting after revision $rev\n"; |
print "Starting after revision $rev\n"; |
184 |
$rev++; |
$rev++; |
185 |
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} |
186 |
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|
187 |
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|
188 |
# |
# |
199 |
} |
} |
200 |
close(LOG); |
close(LOG); |
201 |
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my $xml = XMLin($log, ForceArray => [ 'logentry', 'path' ]); |
|
202 |
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203 |
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my $xml; |
204 |
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eval { |
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$xml = XMLin($log, ForceArray => [ 'logentry', 'path' ]); |
206 |
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}; |
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=begin log_example |
|
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209 |
------------------------------------------------------------------------ |
#=begin log_example |
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r256 | dpavlin | 2004-03-09 13:18:17 +0100 (Tue, 09 Mar 2004) | 2 lines |
# |
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#------------------------------------------------------------------------ |
212 |
ported r254 from hidra branch |
#r256 | dpavlin | 2004-03-09 13:18:17 +0100 (Tue, 09 Mar 2004) | 2 lines |
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# |
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=cut |
#ported r254 from hidra branch |
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|
# |
216 |
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#=cut |
217 |
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|
218 |
my $fmt = "\n" . "-" x 79 . "\nr%5s| %8s | %s\n\n%s\n"; |
my $fmt = "\n" . "-" x 79 . "\nr%5s| %8s | %s\n\n%s\n"; |
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|
220 |
if (! $xml->{'logentry'}) { |
if (! $xml->{'logentry'}) { |
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print "no newer log entries in SubVersion repostory. CVS is current\n"; |
print "no newer log entries in Subversion repostory. CVS is current\n"; |
222 |
exit 0; |
exit 0; |
223 |
} |
} |
224 |
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|
225 |
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# my ($dir,$file) = dir_file($path); |
226 |
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sub dir_file($) { |
227 |
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my $path = shift; |
228 |
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if ($path !~ m,^(.*?/*)([^/]+)$,) { |
229 |
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die "can't split '$path' to dir and file!"; |
230 |
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} else { |
231 |
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my ($d,$f) = ($1,$2); |
232 |
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if ($d !~ m,/$, && $d ne "") { |
233 |
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$d .= "/"; |
234 |
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} |
235 |
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return ($d,$f); |
236 |
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} |
237 |
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} |
238 |
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239 |
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# return all files in CVS/Entries |
240 |
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sub entries($) { |
241 |
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my $dir = shift; |
242 |
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die "entries expects directory argument!" unless -d $dir; |
243 |
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my @entries; |
244 |
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open(my $fh, "$dir/CVS/Entries") || return 0; |
245 |
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while(<$fh>) { |
246 |
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if ( m{^D/([^/]+)}, ) { |
247 |
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my $sub_dir = $1; |
248 |
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warn "#### entries recurse into: $dir/$sub_dir"; |
249 |
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push @entries, map { "$sub_dir/$_" } entries("$dir/$sub_dir"); |
250 |
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push @entries, $sub_dir; |
251 |
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} elsif ( m{^/([^/]+)/} ) { |
252 |
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push @entries, $1; |
253 |
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} elsif ( ! m{^D$} ) { |
254 |
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die "can't decode entries line: $_"; |
255 |
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} |
256 |
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} |
257 |
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close($fh); |
258 |
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warn "#### entries($dir) => ",join("|",@entries); |
259 |
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return @entries; |
260 |
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} |
261 |
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|
262 |
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# check if file exists in CVS/Entries |
263 |
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sub in_entries($) { |
264 |
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my $path = shift; |
265 |
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my ($dir,$file) = dir_file($path); |
266 |
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open(E, "$dir/CVS/Entries") || return 0; |
267 |
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while(<E>) { |
268 |
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return(1) if (m,^/$file/,); |
269 |
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} |
270 |
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close(E); |
271 |
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return 0; |
272 |
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} |
273 |
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|
274 |
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cd_tmp; |
275 |
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cd_rep; |
276 |
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|
277 |
foreach my $e (@{$xml->{'logentry'}}) { |
foreach my $e (@{$xml->{'logentry'}}) { |
278 |
die "BUG: revision from .svnrev ($rev) greater than from subversion (".$e->{'revision'}.")" if ($rev > $e->{'revision'}); |
die "BUG: revision from .svnrev ($rev) greater than from subversion (".$e->{'revision'}.")" if ($rev > $e->{'revision'}); |
279 |
$rev = $e->{'revision'}; |
$rev = $e->{'revision'}; |
284 |
my $tmpsvn = $SVNROOT || die "BUG: SVNROOT empty!"; |
my $tmpsvn = $SVNROOT || die "BUG: SVNROOT empty!"; |
285 |
my $tmppath = $e->{'paths'}->{'path'}->[0]->{'content'} || die "BUG: tmppath empty!"; |
my $tmppath = $e->{'paths'}->{'path'}->[0]->{'content'} || die "BUG: tmppath empty!"; |
286 |
do { |
do { |
287 |
print "## tmppath: $tmppath tmpsvn: $tmpsvn SVNREP: $SVNREP\n"; |
if ($tmpsvn =~ s#(/[^/]+)/*$##) { # vim fix |
288 |
if ($tmpsvn =~ s,(/\w+/*)$,,) { |
$SVNREP = $1 . $SVNREP; |
289 |
$SVNREP .= $1; |
} elsif ($e->{'paths'}->{'path'}->[0]->{'copyfrom-path'}) { |
290 |
|
print "NOTICE: copyfrom outside synced repository ignored - skipping\n"; |
291 |
|
next; |
292 |
} else { |
} else { |
293 |
die "ERROR: can't deduce svn dir from $SVNROOT.\nUsing root of snv repository for current version instead of /trunk/ is not supported.\n"; |
print "NOTICE: can't deduce svn dir from $SVNROOT - skipping\n"; |
294 |
|
next; |
295 |
} |
} |
296 |
} until ($tmppath =~ m/^$SVNREP/); |
} until ($tmppath =~ m/^$SVNREP/); |
297 |
|
|
298 |
print "NOTICE: using $SVNREP as directory for svn\n"; |
print "NOTICE: using $SVNREP as directory for svn\n"; |
299 |
|
|
300 |
printf($fmt, $e->{'revision'}, $e->{'author'}, $e->{'date'}, $e->{'msg'}); |
printf($fmt, $e->{'revision'}, $e->{'author'}, $e->{'date'}, $e->{'msg'}); |
301 |
|
my @commit; |
302 |
|
|
303 |
|
my $msg = $e->{'msg'}; |
304 |
|
$msg =~ s/'/'\\''/g; # quote " |
305 |
|
|
306 |
|
sub cvs_commit { |
307 |
|
my $msg = shift || die "no msg?"; |
308 |
|
if ( ! @_ ) { |
309 |
|
warn "commit ignored, no files\n"; |
310 |
|
return; |
311 |
|
} |
312 |
|
log_system("$cvs commit -m '$msg' '".join("' '",@_)."'", "cvs commit of ".join(",",@_)." failed"); |
313 |
|
} |
314 |
|
|
315 |
foreach my $p (@{$e->{'paths'}->{'path'}}) { |
foreach my $p (@{$e->{'paths'}->{'path'}}) { |
316 |
my ($action,$path) = ($p->{'action'},$p->{'content'}); |
my ($action,$path) = ($p->{'action'},$p->{'content'}); |
317 |
|
|
318 |
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next if ($path =~ m#/\.svnrev$#); |
319 |
|
|
320 |
print "svn2cvs: $action $path\n"; |
print "svn2cvs: $action $path\n"; |
321 |
|
|
322 |
# prepare path and message |
# prepare path and message |
323 |
my $file = $path; |
my $file = $path; |
324 |
$path =~ s,^$SVNREP/*,, || die "BUG: can't strip SVNREP from path"; |
if ( $path !~ s#^\Q$SVNREP\E/*## ) { |
325 |
|
print "NOTICE: skipping '$path' which isn't under repository root '$SVNREP'\n"; |
326 |
|
die unless $partial_import; |
327 |
|
next; |
328 |
|
} |
329 |
|
|
330 |
if (! $path) { |
if (! $path) { |
331 |
print "NOTICE: skipped this operation. Probably trunk creation\n"; |
print "NOTICE: skipped this operation. Probably trunk creation\n"; |
333 |
} |
} |
334 |
|
|
335 |
my $msg = $e->{'msg'}; |
my $msg = $e->{'msg'}; |
336 |
$msg =~ s/'/\\'/g; # quote " |
$msg =~ s/'/'\\''/g; # quote " |
337 |
|
|
338 |
if ($action =~ /M/) { |
sub add_path { |
339 |
print "svn2cvs: modify $path -- nop\n"; |
my $path = shift || die "no path?"; |
340 |
} elsif ($action =~ /A/) { |
|
341 |
if (-d $path) { |
if (-d $path) { |
342 |
chdir($path) || die "can't cd into dir $path for import: $!"; |
add_dir($path, $msg); |
343 |
log_system("$cvs import -d -m '$msg' $CVSREP/$path svn r$rev", "cvs import of $path failed"); |
} elsif ($path =~ m,^(.+)/[^/]+$, && ! -e "$1/CVS/Root") { |
344 |
chdir("$TMPDIR") || die "can't cd to $TMPDIR/$CVSREP: $!"; |
my $dir = $1; |
345 |
log_system("$cvs checkout $CVSREP/$path", "cvs checkout of imported dir $path failed"); |
in_entries($dir) || add_dir($dir, $msg); |
346 |
chdir("$TMPDIR/$CVSREP") || die "can't cd back to $TMPDIR/$CVSREP: $!"; |
in_entries($path) || log_system("$cvs add '$path'", "cvs add of $path failed"); |
347 |
|
} else { |
348 |
|
in_entries($path) || log_system("$cvs add '$path'", "cvs add of $path failed"); |
349 |
|
} |
350 |
|
} |
351 |
|
|
352 |
|
if ($action =~ /M/) { |
353 |
|
if ( in_entries( $path ) ) { |
354 |
|
print "svn2cvs: modify $path -- nop\n"; |
355 |
} else { |
} else { |
356 |
log_system("$cvs add -m '$msg' $path", "cvs add of $path failed"); |
print "WARNING: modify $path which isn't in CVS, adding...\n"; |
357 |
|
add_path($path); |
358 |
} |
} |
359 |
|
} elsif ($action =~ /A/) { |
360 |
|
add_path($path); |
361 |
} elsif ($action =~ /D/) { |
} elsif ($action =~ /D/) { |
362 |
log_system("$cvs delete -m '$msg' $path", "cvs delete of $path failed"); |
if (-e $path) { |
363 |
|
if ( -d $path ) { |
364 |
|
warn "#### remove directory: $path"; |
365 |
|
my @sub_commit; |
366 |
|
foreach my $f ( entries($path) ) { |
367 |
|
$f = "$path/$f"; |
368 |
|
if ( -f $f ) { |
369 |
|
unlink($f) || die "can't delete file $f: $!"; |
370 |
|
# } else { |
371 |
|
# rmtree($f) || die "can't delete dir $f: $!"; |
372 |
|
} |
373 |
|
log_system("$cvs delete '$f'", "cvs delete of file $f failed"); |
374 |
|
push @sub_commit, $f; |
375 |
|
} |
376 |
|
log_system("$cvs delete '$path'", "cvs delete of file $path failed"); |
377 |
|
cvs_commit($msg, @sub_commit, $path); |
378 |
|
log_system("$cvs update -dP '$path'", "cvs update -dP $path failed"); |
379 |
|
} else { |
380 |
|
warn "#### remove file: $path"; |
381 |
|
unlink($path) || die "can't delete $path: $!"; |
382 |
|
log_system("$cvs delete '$path'", "cvs delete of dir $path failed"); |
383 |
|
} |
384 |
|
} else { |
385 |
|
print "WARNING: $path is not present, skipping...\n"; |
386 |
|
undef $path; |
387 |
|
} |
388 |
} else { |
} else { |
389 |
print "WARNING: action $action not implemented on $path. Bug or missing feature of $0\n"; |
print "WARNING: action $action not implemented on $path. Bug or missing feature of $0\n"; |
390 |
} |
} |
391 |
|
|
392 |
# now commit changes |
# save commits for later |
393 |
log_system("$cvs commit -m '$msg' $path", "cvs commit of $path failed"); |
push @commit, $path if ($path); |
394 |
|
|
395 |
} |
} |
396 |
|
|
397 |
|
# now commit changes |
398 |
|
cvs_commit($msg, @commit); |
399 |
|
|
400 |
commit_svnrev($rev); |
commit_svnrev($rev); |
401 |
} |
} |
402 |
|
|
403 |
|
# cd out of $CVSREP before File::Temp::END is called |
404 |
|
chdir("/tmp") || die "can't cd to /tmp: $!"; |
405 |
|
|
406 |
|
__END__ |
407 |
|
|
408 |
|
=pod |
409 |
|
|
410 |
|
=head1 NAME |
411 |
|
|
412 |
|
svn2cvs - save subversion commits to (read-only) cvs repository |
413 |
|
|
414 |
|
=head1 SYNOPSIS |
415 |
|
|
416 |
|
./svn2cvs.pl SVN_URL CVSROOT CVSREPOSITORY |
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Usage example (used to self-host this script): |
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./svn2cvs.pl file:///home/dpavlin/private/svn/svn2cvs/trunk/ \ |
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:pserver:dpavlin@cvs.tigris.org:/cvs svn2cvs/src |
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=head1 DESCRIPTION |
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|
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This script will allows you to commit changes made to Subversion repository to |
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(read-only) CVS repository manually or from Subversion's C<post-commit> hook. |
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|
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It's using F<.svnrev> file (which will be created on first run) in |
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B<CVSROOT/CVSREPOSITORY> to store last Subversion revision which was |
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committed into CVS. |
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|
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One run will do following things: |
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=over 4 |
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|
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=item * |
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checkout B<CVSREPOSITORY> from B<CVSROOT> to temporary directory |
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|
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=item * |
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check if F<.svnrev> file exists and create it if it doesn't |
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=item * |
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loop through all revisions from current in B<CVSROOT/CVSREPOSITORY> (using |
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F<.svnrev>) up to B<HEAD> (current one) |
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=over 5 |
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=item * |
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checkout next Subversion revision from B<SVN_URL> over CVS checkout |
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temporary directory |
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|
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=item * |
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make modification (add and/or delete) done in that revision |
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=item * |
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commit modification (added, deleted or modified files/dirs) while |
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preserving original message from CVS |
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|
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=item * |
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update F<.svnrev> to match current revision |
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=back |
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=item * |
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cleanup temporary directory |
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|
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=back |
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If checkout fails for some reason (e.g. flaky ssh connection), you will |
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still have valid CVS repository, so all you have to do is run B<svn2cvs.pl> |
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again. |
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=head1 WARNINGS |
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|
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"Cheap" copy operations in Subversion are not at all cheap in CVS. They will |
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create multiple copies of files in CVS repository! |
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|
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This script assume that you want to sync your C<trunk> (or any other |
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directory for that matter) directory with CVS, not root of your subversion. |
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This might be considered bug, but since common practise is to have |
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directories C<trunk> and C<branches> in svn and source code in them, it's |
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not serious limitation. |
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|
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=head1 RELATED PROJECTS |
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|
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B<Subversion> L<http://subversion.tigris.org/> version control system that is a |
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compelling replacement for CVS in the open source community. |
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|
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B<cvs2svn> L<http://cvs2svn.tigris.org/> converts a CVS repository to a |
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Subversion repository. It is designed for one-time conversions, not for |
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repeated synchronizations between CVS and Subversion. |
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|
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=head1 CHANGES |
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|
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Versions of this utility are actually Subversion repository revisions, |
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so they might not be in sequence. |
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|
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=over 3 |
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|
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=item r10 |
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|
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First release available to public |
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|
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=item r15 |
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|
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Addition of comprehensive documentation, fixes for quoting in commit |
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messages, and support for skipping changes which are not under current |
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Subversion checkout root (e.g. branches). |
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|
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=item r18 |
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|
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Support for importing your svn into empty CVS repository (it will first |
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create module and than dump all revisions). |
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Group commit operations to save round-trips to CVS server. |
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Documentation improvements and other small fixes. |
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=item r20 |
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|
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Fixed path deduction (overlap between Subversion reporistory and CVS checkout). |
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=item r21 |
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Use C<update -d> instead of checkout after import. |
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Added fixes by Paul Egan <paulegan@mail.com> for XMLin and fixing working |
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directory. |
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|
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=item r22 |
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|
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Rewritten import from revision 0 to empty repository, better importing |
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of deep directory structures, initial support for recovery from partial |
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commit. |
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|
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=back |
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|
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=head1 AUTHOR |
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|
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Dobrica Pavlinusic <dpavlin@rot13.org> |
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L<http://www.rot13.org/~dpavlin/> |
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=head1 LICENSE |
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|
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This product is licensed under GNU Public License (GPL) v2 or later. |
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|
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=cut |
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|