| 1 | #!/usr/bin/perl |
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| 2 | |
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| 3 | =pod |
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| 4 | |
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| 5 | =head1 NAME |
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| 6 | |
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| 7 | B<p42svn> - dump Perforce repository in Subversion portable dump/load format. |
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| 8 | |
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| 9 | =head1 SYNOPSIS |
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| 10 | |
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| 11 | B<p42svn> [I<options>] [B<--branch> I<p4_branch_spec=svn_path>] ... |
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| 12 | |
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| 13 | =head1 OPTIONS |
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| 14 | |
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| 15 | =over 8 |
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| 16 | |
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| 17 | =item B<--help> |
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| 18 | |
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| 19 | Print detailed help message and exit. |
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| 20 | |
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| 21 | =item B<--usage> |
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| 22 | |
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| 23 | Print brief usage message and exit. |
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| 24 | |
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| 25 | =item B<--debug> |
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| 26 | |
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| 27 | Print debug messages to STDERR. |
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| 28 | |
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| 29 | =item B<--branch> I<p4_depot_spec=svn_path> |
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| 30 | |
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| 31 | Specify mapping of Perforce branch to repository path. Takes an |
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| 32 | argument of the form p4_depot_spec=svn_path. Multiple branch mappings |
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| 33 | may be specified, but at least one is required. |
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| 34 | |
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| 35 | =item B<--munge-keywords|--nomunge-keywords> |
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| 36 | |
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| 37 | Do/don't convert Perforce keywords to their Subversion equivalent. |
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| 38 | The default is to perform keyword conversion. |
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| 39 | |
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| 40 | =item B<--parse-mime-types|--noparse-mime-types> |
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| 41 | |
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| 42 | Do/don't attempt to parse content MIME type and add svn:mime-type |
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| 43 | property. Default is not to parse MIME types. |
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| 44 | |
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| 45 | =item B<--mime-magic-path> I<path> |
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| 46 | |
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| 47 | Specify path of MIME magic file, overriding the default |
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| 48 | F</usr/share/misc/magic.mime>. Ignored unless B<--parse-mime-types> |
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| 49 | is true. |
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| 50 | |
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| 51 | =item B<--delete-empty-dirs|--nodelete-empty-dirs> |
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| 52 | |
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| 53 | Do/don't delete the parent directory when the last file/directory it |
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| 54 | contains is deleted. Default is to delete empty directories. |
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| 55 | |
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| 56 | =item B<--user> I<name> |
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| 57 | |
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| 58 | Specify Perforce username; this overrides $P4USER, $USER, and |
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| 59 | $USERNAME in the environment. |
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| 60 | |
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| 61 | =item B<--client> I<name> |
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| 62 | |
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| 63 | Specify Perforce client; this overrides $P4CLIENT in the environment |
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| 64 | and the default, the hostname. |
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| 65 | |
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| 66 | =item B<--port> I<[host:]port> |
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| 67 | |
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| 68 | Specify Perforce server and port; this overrides $P4PORT in the |
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| 69 | environment and the default, perforce:1666. |
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| 70 | |
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| 71 | =item B<--password> I<token> |
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| 72 | |
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| 73 | Specify Perforce password; this overrides $P4PASSWD in the |
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| 74 | environment. |
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| 75 | |
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| 76 | =back |
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| 77 | |
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| 78 | =head1 DESCRIPTION |
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| 79 | |
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| 80 | B<p42svn> connects to a Perforce server and examines changes affecting |
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| 81 | the specified repository branch(es). Records reflecting each change |
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| 82 | are written to STDOUT in Subversion portable dump/load format. Each |
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| 83 | Perforce change corresponds to a single Subversion revision. Changes |
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| 84 | to files outside the specified Perforce branch(es) are ignored. |
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| 85 | |
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| 86 | Migration of a Perforce depot to Subversion can thus be achieved in |
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| 87 | two easy steps: |
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| 88 | |
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| 89 | =over 4 |
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| 90 | |
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| 91 | =item C<svnadmin create /path/to/repository> |
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| 92 | |
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| 93 | =item C<p42svn --branch //depot/projectA=trunk/projectA | svnadmin load /path/to/repository> |
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| 94 | |
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| 95 | =back |
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| 96 | |
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| 97 | It is also possible to specify multiple branch mappings to change the |
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| 98 | repository layout when migrating, for example: |
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| 99 | |
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| 100 | =over 4 |
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| 101 | |
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| 102 | =item C<p42svn --branch //depot/projectA/devel=projectA/trunk --branch |
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| 103 | //depot/projectA/release-1.0=projectA/tags/release1.0> |
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| 104 | |
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| 105 | =back |
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| 106 | |
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| 107 | =head1 REQUIREMENTS |
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| 108 | |
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| 109 | This program requires the Perforce Perl API, which is available for |
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| 110 | download from |
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| 111 | E<lt>http://public.perforce.com/guest/tony_smith/perforce/API/Perl/index.htmlE<gt>. |
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| 112 | It has been tested against version 1.2587 of the P4 module built |
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| 113 | against r02.2 of the Perforce API. |
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| 114 | |
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| 115 | Also tested by Dimitri Papadopoulos-Orfanos against P4 version 3.4804 built |
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| 116 | against r05.2 of the Perforce API. |
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| 117 | |
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| 118 | =head1 VERSION |
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| 119 | |
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| 120 | This is version 0.16. |
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| 121 | |
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| 122 | =head1 AUTHOR |
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| 123 | |
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| 124 | Ray Miller E<lt>ray@sysdev.oucs.ox.ac.ukE<gt>. |
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| 125 | |
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| 126 | =head1 BUGS |
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| 127 | |
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| 128 | Please report any bugs to the author. |
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| 129 | |
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| 130 | Accuracy of deretmined MIME types is dependent on your systems's MIME |
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| 131 | magic data. This program defaults to using data in |
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| 132 | F</usr/share/misc/magic.mime> which, on a Debian woody system, does |
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| 133 | not give very good results. |
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| 134 | |
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| 135 | =head1 COPYRIGHT |
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| 136 | |
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| 137 | Copyright (C) 2003 University of Oxford |
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| 138 | |
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| 139 | This program is free software; you can redistribute it and/or modify |
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| 140 | it under the terms of the GNU General Public License as published by |
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| 141 | the Free Software Foundation; either version 2 of the License, or |
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| 142 | (at your option) any later version. |
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| 143 | |
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| 144 | This program is distributed in the hope that it will be useful, |
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| 145 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 146 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 147 | GNU General Public License for more details. |
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| 148 | |
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| 149 | You should have received a copy of the GNU General Public License |
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| 150 | along with this program; if not, write to the Free Software |
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| 151 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 152 | |
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| 153 | =cut |
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| 154 | |
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| 155 | use strict; |
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| 156 | use warnings; |
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| 157 | |
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| 158 | use P4; |
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| 159 | use Data::Dumper; |
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| 160 | use Date::Format; |
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| 161 | use Digest::MD5 qw(md5_hex); |
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| 162 | use File::MMagic; |
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| 163 | use Getopt::Long; |
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| 164 | use Pod::Usage; |
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| 165 | |
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| 166 | use constant MIME_MAGIC_PATH => "/usr/share/misc/magic.mime"; |
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| 167 | use constant SVN_FS_DUMP_FORMAT_VERSION => 1; |
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| 168 | use constant SVN_DATE_TEMPLATE => "%Y-%m-%dT%T.000000Z"; |
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| 169 | |
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| 170 | our (%rev_map, %dir_seen, %dir_usage, @deleted_files); |
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| 171 | |
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| 172 | our %KEYWORD_MAP = ("Author" => "LastChangedBy", |
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| 173 | "Date" => "LastChangedDate", |
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| 174 | "Revision" => "LastChangedRevision", |
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| 175 | "File" => "HeadURL", |
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| 176 | "Id" => "Id"); |
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| 177 | |
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| 178 | use constant OPT_SPEC => qw(help usage debug branch=s% |
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| 179 | delete-empty-dirs! |
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| 180 | munge-keywords! parse-mime-types! mime-magic-path=s |
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| 181 | user=s client=s port=s password=s); |
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| 182 | |
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| 183 | our %options = ("help" => 0, |
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| 184 | "usage" => 0, |
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| 185 | "debug" => 0, |
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| 186 | "delete-empty-dirs" => 1, |
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| 187 | "munge-keywords" => 1, |
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| 188 | "parse-mime-types" => 0, |
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| 189 | "mime-magic-path" => MIME_MAGIC_PATH, |
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| 190 | "branch" => {}); |
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| 191 | |
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| 192 | ######################################################################## |
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| 193 | # Print debugging messages when debug option is set. |
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| 194 | ######################################################################## |
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| 195 | |
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| 196 | sub debug { |
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| 197 | return unless $options{debug}; |
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| 198 | print STDERR @_; |
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| 199 | } |
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| 200 | |
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| 201 | ######################################################################## |
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| 202 | # Helper routines for option validation. |
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| 203 | ######################################################################## |
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| 204 | |
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| 205 | sub is_valid_depot { |
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| 206 | my $depot = shift; |
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| 207 | return $depot =~ m{^//([^/]+/?)*$}; |
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| 208 | } |
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| 209 | |
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| 210 | sub is_valid_svnpath { |
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| 211 | my $path = shift; |
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| 212 | return $path =~ m{^/?([^/]+/?)*$}; |
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| 213 | } |
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| 214 | |
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| 215 | ######################################################################## |
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| 216 | # Process command-line options. |
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| 217 | ######################################################################## |
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| 218 | sub process_options { |
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| 219 | |
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| 220 | GetOptions(\%options, OPT_SPEC) and @ARGV == 0 |
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| 221 | or pod2usage(-exitval => 2, -verbose => 1); |
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| 222 | pod2usage(-exitval => 1, -verbose => 2) |
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| 223 | if $options{"help"}; |
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| 224 | pod2usage(-exitval => 1, -verbose => 1) |
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| 225 | if $options{"usage"}; |
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| 226 | pod2usage(-exitval => 2, -verbose => 0, |
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| 227 | -message => "Must specify at least one branch") |
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| 228 | unless keys %{$options{branch}}; |
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| 229 | |
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| 230 | # Validate and sanitize branch specifications |
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| 231 | while (my ($key, $val) = each %{$options{branch}}) { |
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| 232 | pod2usage(-exitval => 2, -verbose => 0, |
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| 233 | -message => "Invalid Perforce depot specification: \"$key\"") |
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| 234 | unless is_valid_depot($key); |
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| 235 | pod2usage(-exitval => 2, -verbose => 0, |
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| 236 | -message => "Invalid Subversion repository path \"$val\"") |
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| 237 | unless is_valid_svnpath($val); |
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| 238 | if ($val =~ m{.+[^/]$}) { |
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| 239 | $options{branch}{$key} .= "/"; |
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| 240 | } |
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| 241 | if ($key =~ m{[^/]$}) { |
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| 242 | $options{branch}{"$key/"} = $options{branch}{$key}; |
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| 243 | delete $options{branch}{$key}; |
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| 244 | } |
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| 245 | debug("process_options: branch $key => $val\n"); |
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| 246 | } |
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| 247 | } |
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| 248 | |
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| 249 | ######################################################################## |
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| 250 | # Does Perforce file lie in a branch we're processing? |
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| 251 | ######################################################################## |
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| 252 | |
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| 253 | sub is_wanted_file { |
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| 254 | my $filespec = shift; |
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| 255 | debug("is_wanted_file: $filespec\n"); |
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| 256 | foreach (keys %{$options{branch}}) { |
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| 257 | debug("is_wanted_file: considering $_\n"); |
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| 258 | return 1 if $filespec =~ /^$_/; |
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| 259 | } |
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| 260 | debug("is_wanted_file: ignoring $filespec\n"); |
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| 261 | return 0; |
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| 262 | } |
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| 263 | |
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| 264 | ######################################################################## |
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| 265 | # Map Perforce depot spec to Subversion path. |
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| 266 | ######################################################################## |
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| 267 | |
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| 268 | sub depot2svnpath { |
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| 269 | my $depot = shift; |
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| 270 | my $branches = $options{branch}; |
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| 271 | my $key = undef; |
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| 272 | foreach (sort {length($a) <=> length($b)} keys %$branches) { |
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| 273 | next unless $depot =~ /^$_/; |
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| 274 | $key = $_; |
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| 275 | } |
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| 276 | return undef unless $key; |
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| 277 | (my $svnpath = $depot) =~ s/^$key/$branches->{$key}/; |
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| 278 | debug("depot2svnpath: $depot => $svnpath\n"); |
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| 279 | return $svnpath; |
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| 280 | } |
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| 281 | |
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| 282 | ######################################################################## |
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| 283 | # Helper routines for Perforce file types. |
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| 284 | ######################################################################## |
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| 285 | |
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| 286 | sub p4_has_keyword_expansion { |
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| 287 | my $type = shift; |
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| 288 | for (qw(ktext kxtext)) { |
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| 289 | return 1 if $type eq $_; |
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| 290 | } |
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| 291 | return 0; |
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| 292 | } |
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| 293 | |
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| 294 | sub p4_has_executable_flag { |
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| 295 | my $type = shift; |
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| 296 | for (qw(cxtext kxtext uxbinary xbinary xltext xtempobj xtext xunicode)) { |
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| 297 | return 1 if $type eq $_; |
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| 298 | } |
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| 299 | return 0; |
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| 300 | } |
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| 301 | |
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| 302 | ######################################################################## |
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| 303 | # Return property list based on Perforce file type and (optionally) |
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| 304 | # content MIME type. |
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| 305 | ######################################################################## |
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| 306 | |
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| 307 | my $mmagic; |
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| 308 | |
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| 309 | sub properties { |
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| 310 | my ($type, $content_ref) = @_; |
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| 311 | my @properties; |
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| 312 | if (p4_has_keyword_expansion($type)) { |
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| 313 | push @properties, "svn:keywords" => join(" ", values %KEYWORD_MAP); |
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| 314 | } |
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| 315 | if (p4_has_executable_flag($type)) { |
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| 316 | push @properties, "svn:executable" => 1; |
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| 317 | } |
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| 318 | if ($options{"parse-mime-types"}) { |
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| 319 | unless ($mmagic) { |
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| 320 | $mmagic = File::MMagic->new($options{"mime-magic-path"}) |
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| 321 | or die "Unable to open MIME magic file " |
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| 322 | . $options{"mime-magic-path"} . $!; |
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| 323 | } |
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| 324 | my $mtype = $mmagic->checktype_contents($$content_ref); |
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| 325 | push(@properties, "svn:mime-type" => $mtype) if $mtype; |
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| 326 | } |
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| 327 | return \@properties; |
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| 328 | } |
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| 329 | |
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| 330 | ######################################################################## |
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| 331 | # Replace Perforce keywords in file content with equivalent Subversion |
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| 332 | # keywords. |
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| 333 | ######################################################################## |
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| 334 | |
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| 335 | sub munge_keywords { |
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| 336 | return unless $options{"munge-keywords"}; |
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| 337 | my $content_ref = shift; |
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| 338 | while (my ($key, $val) = each %KEYWORD_MAP) { |
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| 339 | $$content_ref =~ s/\$$key(?\:[^\$\n]*)?\$(\W)/\$$val\$$1/g; |
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| 340 | } |
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| 341 | } |
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| 342 | |
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| 343 | ######################################################################## |
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| 344 | # Return parent directories of a path |
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| 345 | ######################################################################## |
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| 346 | |
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| 347 | sub parent_directories { |
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| 348 | my $path = shift; |
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| 349 | my @components; |
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| 350 | my $offset = 0; |
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| 351 | while ((my $ix = index($path, "/", $offset)) >= 0) { |
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| 352 | $offset = $ix + 1; |
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| 353 | push @components, substr($path, 0, $offset); |
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| 354 | } |
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| 355 | return @components; |
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| 356 | } |
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| 357 | |
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| 358 | ######################################################################## |
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| 359 | # Return parent directory of a path |
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| 360 | ######################################################################## |
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| 361 | |
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| 362 | sub parent_directory { |
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| 363 | my $path = shift; |
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| 364 | (my $parent_dir = $path) =~ s|[^/]+/?$||; |
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| 365 | return $parent_dir; |
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| 366 | } |
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| 367 | |
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| 368 | ######################################################################## |
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| 369 | # Convert Subversion property list to string. |
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| 370 | ######################################################################## |
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| 371 | |
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| 372 | sub svn_props2string { |
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| 373 | my $properties = shift; |
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| 374 | my $result; |
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| 375 | if (defined $properties) { |
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| 376 | while (my ($key, $val) = splice(@$properties, 0, 2)) { |
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| 377 | $result .= sprintf("K %d\n%s\n", length($key), $key); |
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| 378 | $result .= sprintf("V %d\n%s\n", length($val), $val); |
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| 379 | } |
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| 380 | } |
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| 381 | $result .= "PROPS-END"; |
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| 382 | return $result; |
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| 383 | } |
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| 384 | |
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| 385 | ######################################################################## |
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| 386 | # Routines to print Subversion dump/restore records. |
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| 387 | ######################################################################## |
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| 388 | |
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| 389 | sub svn_dump_format_version { |
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| 390 | my ($version) = @_; |
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| 391 | print "SVN-fs-dump-format-version: $version\n\n"; |
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| 392 | } |
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| 393 | |
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| 394 | sub svn_revision { |
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| 395 | my ($revision, $properties) = @_; |
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| 396 | my $ppty_txt = svn_props2string($properties); |
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| 397 | my $ppty_len = length($ppty_txt) + 1; |
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| 398 | print <<"EOT"; |
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| 399 | Revision-number: $revision |
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| 400 | Prop-content-length: $ppty_len |
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| 401 | Content-length: $ppty_len |
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| 402 | |
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| 403 | $ppty_txt |
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| 404 | |
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| 405 | EOT |
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| 406 | } |
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| 407 | |
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| 408 | sub svn_add_dir { |
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| 409 | my ($path, $properties) = @_; |
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| 410 | $dir_usage{parent_directory($path)}++; |
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| 411 | my $ppty_txt = svn_props2string($properties); |
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| 412 | my $ppty_len = length($ppty_txt) + 1; |
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| 413 | print <<"EOT"; |
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| 414 | Node-path: $path |
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| 415 | Node-kind: dir |
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| 416 | Node-action: add |
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| 417 | Prop-content-length: $ppty_len |
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| 418 | Content-length: $ppty_len |
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| 419 | |
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| 420 | $ppty_txt |
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| 421 | |
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| 422 | EOT |
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| 423 | } |
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| 424 | |
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| 425 | sub svn_add_file { |
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| 426 | my ($path, $properties, $text) = @_; |
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| 427 | $dir_usage{parent_directory($path)}++; |
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| 428 | my $ppty_txt = svn_props2string($properties); |
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| 429 | my $ppty_len = length($ppty_txt) + 1; |
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| 430 | my $text_len = length($text); |
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| 431 | my $text_md5 = md5_hex($text); |
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| 432 | my $content_len = $ppty_len + $text_len; |
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| 433 | print <<"EOT"; |
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| 434 | Node-path: $path |
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| 435 | Node-kind: file |
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| 436 | Node-action: add |
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| 437 | Text-content-length: $text_len |
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| 438 | Text-content-md5: $text_md5 |
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| 439 | Prop-content-length: $ppty_len |
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| 440 | Content-length: $content_len |
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| 441 | |
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| 442 | $ppty_txt |
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| 443 | $text |
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| 444 | |
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| 445 | EOT |
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| 446 | } |
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| 447 | |
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| 448 | sub svn_add_symlink { |
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| 449 | my ($path, $properties, $text) = @_; |
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| 450 | push(@$properties, ("svn:special","*")); |
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| 451 | $text = "link $text"; |
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| 452 | $dir_usage{parent_directory($path)}++; |
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| 453 | my $ppty_txt = svn_props2string($properties); |
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| 454 | my $ppty_len = length($ppty_txt) + 1; |
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| 455 | my $text_len = length($text); |
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| 456 | my $text_md5 = md5_hex($text); |
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| 457 | my $content_len = $ppty_len + $text_len; |
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| 458 | print <<"EOT"; |
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| 459 | Node-path: $path |
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| 460 | Node-kind: file |
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| 461 | Node-action: add |
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| 462 | Text-content-length: $text_len |
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| 463 | Text-content-md5: $text_md5 |
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| 464 | Prop-content-length: $ppty_len |
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| 465 | Content-length: $content_len |
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| 466 | |
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| 467 | $ppty_txt |
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| 468 | $text |
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| 469 | |
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| 470 | EOT |
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| 471 | } |
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| 472 | |
|---|
| 473 | sub svn_edit_file { |
|---|
| 474 | my ($path, $properties, $text) = @_; |
|---|
| 475 | my $ppty_txt = svn_props2string($properties); |
|---|
| 476 | my $ppty_len = length($ppty_txt) + 1; |
|---|
| 477 | my $text_len = length($text); |
|---|
| 478 | my $text_md5 = md5_hex($text); |
|---|
| 479 | my $content_len = $ppty_len + $text_len; |
|---|
| 480 | print <<"EOT"; |
|---|
| 481 | Node-path: $path |
|---|
| 482 | Node-kind: file |
|---|
| 483 | Node-action: change |
|---|
| 484 | Text-content-length: $text_len |
|---|
| 485 | Text-content-md5: $text_md5 |
|---|
| 486 | Prop-content-length: $ppty_len |
|---|
| 487 | Content-length: $content_len |
|---|
| 488 | |
|---|
| 489 | $ppty_txt |
|---|
| 490 | $text |
|---|
| 491 | |
|---|
| 492 | EOT |
|---|
| 493 | } |
|---|
| 494 | |
|---|
| 495 | sub svn_delete { |
|---|
| 496 | my ($path) = @_; |
|---|
| 497 | $dir_usage{parent_directory($path)}--; |
|---|
| 498 | |
|---|
| 499 | print <<"EOT"; |
|---|
| 500 | Node-path: $path |
|---|
| 501 | Node-action: delete |
|---|
| 502 | |
|---|
| 503 | EOT |
|---|
| 504 | } |
|---|
| 505 | |
|---|
| 506 | sub svn_add_copy { |
|---|
| 507 | my ($path, $properties, $content, $from_path, $from_rev) = @_; |
|---|
| 508 | $dir_usage{parent_directory($path)}++; |
|---|
| 509 | my $ppty_txt = svn_props2string($properties); |
|---|
| 510 | my $ppty_len = length($ppty_txt) + 1; |
|---|
| 511 | my $content_md5 = md5_hex($content); |
|---|
| 512 | print <<"EOT"; |
|---|
| 513 | Node-path: $path |
|---|
| 514 | Node-kind: file |
|---|
| 515 | Node-action: add |
|---|
| 516 | Node-copyfrom-rev: $from_rev |
|---|
| 517 | Node-copyfrom-path: $from_path |
|---|
| 518 | Text-copy-source-md5: $content_md5 |
|---|
| 519 | Prop-content-length: $ppty_len |
|---|
| 520 | Content-length: $ppty_len |
|---|
| 521 | |
|---|
| 522 | $ppty_txt |
|---|
| 523 | |
|---|
| 524 | EOT |
|---|
| 525 | } |
|---|
| 526 | |
|---|
| 527 | sub svn_replace_copy { |
|---|
| 528 | my ($path, $properties, $content, $from_path, $from_rev) = @_; |
|---|
| 529 | my $ppty_txt = svn_props2string($properties); |
|---|
| 530 | my $ppty_len = length($ppty_txt) + 1; |
|---|
| 531 | my $content_md5 = md5_hex($content); |
|---|
| 532 | print <<"EOT"; |
|---|
| 533 | Node-path: $path |
|---|
| 534 | Node-kind: file |
|---|
| 535 | Node-action: replace |
|---|
| 536 | Node-copyfrom-rev: $from_rev |
|---|
| 537 | Node-copyfrom-path: $from_path |
|---|
| 538 | Text-copy-source-md5: $content_md5 |
|---|
| 539 | Prop-content-length: $ppty_len |
|---|
| 540 | Content-length: $ppty_len |
|---|
| 541 | |
|---|
| 542 | $ppty_txt |
|---|
| 543 | |
|---|
| 544 | EOT |
|---|
| 545 | } |
|---|
| 546 | |
|---|
| 547 | sub svn_add_parent_dirs { |
|---|
| 548 | my $svn_path = shift; |
|---|
| 549 | debug("svn_add_parent_dirs passed $svn_path\n"); |
|---|
| 550 | foreach my $dir (parent_directories($svn_path)) { |
|---|
| 551 | next if $dir_seen{$dir}++; |
|---|
| 552 | debug("svn_add_parent_dirs adding $dir\n"); |
|---|
| 553 | svn_add_dir($dir, undef); |
|---|
| 554 | } |
|---|
| 555 | } |
|---|
| 556 | |
|---|
| 557 | sub svn_delete_empty_parent_dirs { |
|---|
| 558 | return unless $options{"delete-empty-dirs"} && @_; |
|---|
| 559 | debug("svn_delete_empty_parent_dirs: passed @_\n"); |
|---|
| 560 | |
|---|
| 561 | my @deleted_dirs; |
|---|
| 562 | for (@_) { |
|---|
| 563 | $_ = parent_directory($_) or next; |
|---|
| 564 | debug("svn_delete_empty_parent_dirs: $_ usage $dir_usage{$_}\n"); |
|---|
| 565 | if ($dir_usage{$_} == 0 && $dir_seen{$_} > 0) { |
|---|
| 566 | debug("svn_delete_empty_parent_dirs: deleting $_\n"); |
|---|
| 567 | svn_delete($_); |
|---|
| 568 | $dir_seen{$_} = 0; |
|---|
| 569 | push(@deleted_dirs, $_); |
|---|
| 570 | } |
|---|
| 571 | } |
|---|
| 572 | |
|---|
| 573 | svn_delete_empty_parent_dirs(@deleted_dirs); |
|---|
| 574 | } |
|---|
| 575 | |
|---|
| 576 | ######################################################################### |
|---|
| 577 | # Routines for interacting with Perforce server. |
|---|
| 578 | ######################################################################### |
|---|
| 579 | |
|---|
| 580 | my $global_p4; |
|---|
| 581 | |
|---|
| 582 | sub p4_init { |
|---|
| 583 | return $global_p4 |
|---|
| 584 | if defined $global_p4; |
|---|
| 585 | my $p4 = P4->new(); |
|---|
| 586 | $p4->SetUser($options{user}) if $options{user}; |
|---|
| 587 | $p4->SetClient($options{client}) if $options{client}; |
|---|
| 588 | $p4->SetPort($options{port}) if $options{port}; |
|---|
| 589 | $p4->SetPassword($options{password}) if $options{password}; |
|---|
| 590 | $p4->ParseForms(); |
|---|
| 591 | while (!$p4->Init()) { |
|---|
| 592 | warn "failed to connect to Perforce server"; |
|---|
| 593 | sleep 3; |
|---|
| 594 | warn "retrying...\n"; |
|---|
| 595 | }; |
|---|
| 596 | return $global_p4 = $p4; |
|---|
| 597 | } |
|---|
| 598 | |
|---|
| 599 | sub p4_get_changes { |
|---|
| 600 | my $p4 = p4_init(); |
|---|
| 601 | my @changes; |
|---|
| 602 | foreach my $branch (keys %{$options{branch}}) { |
|---|
| 603 | debug("p4_get_changes: branch $branch\n"); |
|---|
| 604 | push @changes, $p4->Changes($branch . "..."); |
|---|
| 605 | die "@{$p4->Errors()}" if $p4->ErrorCount(); |
|---|
| 606 | } |
|---|
| 607 | #$p4->Final(); |
|---|
| 608 | my %seen = map {$_->{change} => 1} @changes; |
|---|
| 609 | return sort {$a <=> $b} keys %seen; |
|---|
| 610 | } |
|---|
| 611 | |
|---|
| 612 | sub p4_get_change_details { |
|---|
| 613 | my $change_num = shift; |
|---|
| 614 | debug("p4_get_change_details: $change_num\n"); |
|---|
| 615 | my $p4 = p4_init(); |
|---|
| 616 | my $change = $p4->Describe($change_num); |
|---|
| 617 | die "@{$p4->Errors()}" if $p4->ErrorCount(); |
|---|
| 618 | #$p4->Final(); |
|---|
| 619 | my %result; |
|---|
| 620 | $result{author} = $change->{user}; |
|---|
| 621 | $result{log} = $change->{desc}; |
|---|
| 622 | $result{date} = time2str(SVN_DATE_TEMPLATE, $change->{time}); |
|---|
| 623 | for (my $i = 0; $i < @{$change->{depotFile}}; $i++) { |
|---|
| 624 | my $file = $change->{depotFile}[$i]; |
|---|
| 625 | my $action = $change->{action}[$i]; |
|---|
| 626 | my $type = $change->{type}[$i]; |
|---|
| 627 | if (is_wanted_file($file)) { |
|---|
| 628 | push @{$result{actions}}, {action => $action, |
|---|
| 629 | path => $file, |
|---|
| 630 | type => $type}; |
|---|
| 631 | } |
|---|
| 632 | } |
|---|
| 633 | return \%result; |
|---|
| 634 | } |
|---|
| 635 | |
|---|
| 636 | # |
|---|
| 637 | # We have to jump through hoops to get the file content because |
|---|
| 638 | # Print() behaves inconsistently. For text files, it returns an array |
|---|
| 639 | # reference, the first element of which is a hash reference with |
|---|
| 640 | # details we're not interested in, and remaining elements the file |
|---|
| 641 | # content; but for binary files it just returns the hash reference |
|---|
| 642 | # and writes the content to STDOUT. Painful! |
|---|
| 643 | # |
|---|
| 644 | sub p4_get_file_content { |
|---|
| 645 | my $filespec = shift; |
|---|
| 646 | debug("p4_get_file_content: $filespec\n"); |
|---|
| 647 | my $p4 = p4_init(); |
|---|
| 648 | my $result = $p4->Print($filespec); |
|---|
| 649 | die "@{$p4->Errors()}" if $p4->ErrorCount(); |
|---|
| 650 | my $content = ""; |
|---|
| 651 | if (ref $result eq "ARRAY") { |
|---|
| 652 | for (my $i = 1; $i < @$result; $i++) { |
|---|
| 653 | $content .= $result->[$i]; |
|---|
| 654 | } |
|---|
| 655 | } |
|---|
| 656 | #$p4->Final(); |
|---|
| 657 | return $content; |
|---|
| 658 | } |
|---|
| 659 | |
|---|
| 660 | sub p4_files_are_identical { |
|---|
| 661 | my ($src_fspec, $dst_fspec) = @_; |
|---|
| 662 | debug("p4_files_are_identical: @_\n"); |
|---|
| 663 | my $p4 = p4_init(); |
|---|
| 664 | my $res = $p4->Diff2($src_fspec, $dst_fspec); |
|---|
| 665 | die "@{$p4->Errors()}" if $p4->ErrorCount(); |
|---|
| 666 | if (ref $res) { |
|---|
| 667 | if (ref $res eq "ARRAY") { |
|---|
| 668 | debug("p4_files_are_identical: $res->[0]\n"); |
|---|
| 669 | } elsif (ref $res eq "SCALAR") { |
|---|
| 670 | debug("p4_files_are_identical: $$res\n"); |
|---|
| 671 | } else { |
|---|
| 672 | debug("p4_files_are_identical: not an ARRAY nor a SCALAR\n"); |
|---|
| 673 | } |
|---|
| 674 | return 0; |
|---|
| 675 | } |
|---|
| 676 | debug("p4_files_are_identical: $res\n"); |
|---|
| 677 | return $res =~ /identical$/; |
|---|
| 678 | } |
|---|
| 679 | |
|---|
| 680 | # |
|---|
| 681 | # If $path was not modified by this change, return (undef, undef), |
|---|
| 682 | # which signals to the caller to ignore this file. If we are unable, |
|---|
| 683 | # for any reason, to determine the source of a branch/integrate, |
|---|
| 684 | # return (undef, -n), signalling to the caller to treat this as an |
|---|
| 685 | # add/edit. |
|---|
| 686 | # |
|---|
| 687 | sub p4_get_copyfrom_filerev { |
|---|
| 688 | my ($path, $change) = @_; |
|---|
| 689 | debug("p4_get_copyfrom_filerev: $path\@$change\n"); |
|---|
| 690 | if ($change > 1 && p4_files_are_identical($path.'@'.$change, |
|---|
| 691 | $path.'@'.($change-1))) { |
|---|
| 692 | debug("p4_get_copyfrom_filerev: $path\@$change unchanged\n"); |
|---|
| 693 | return (undef, undef); |
|---|
| 694 | } |
|---|
| 695 | my $p4 = p4_init(); |
|---|
| 696 | my $res = $p4->Filelog("$path\@$change"); |
|---|
| 697 | die "@{$p4->Errors()}" if $p4->ErrorCount(); |
|---|
| 698 | debug(Dumper($res)); |
|---|
| 699 | unless ($res->{how}) { |
|---|
| 700 | debug("p4_get_copyfrom_filerev: returning undef#-1\n"); |
|---|
| 701 | return (undef, -1); |
|---|
| 702 | } |
|---|
| 703 | unless (ref $res->{how} eq "ARRAY" && $res->{how}[0]) { |
|---|
| 704 | die "Unexpected return from P4 Filelog ($path\@$change)\n"; |
|---|
| 705 | } |
|---|
| 706 | ### unless ($res->{how}[0]) { |
|---|
| 707 | ### debug("p4_get_copyfrom_filerev: returning undef#undef (path 1)\n"); |
|---|
| 708 | ### return (undef, undef); |
|---|
| 709 | ### } |
|---|
| 710 | my $i; |
|---|
| 711 | for ($i = 0; $i < @{$res->{how}[0]}; $i++) { |
|---|
| 712 | last if $res->{how}[0][$i] =~ /from$/; |
|---|
| 713 | } |
|---|
| 714 | if ($i < 0 || $i > $#{$res->{how}[0]}) { |
|---|
| 715 | debug("p4_get_copyfrom_filerev: returning undef#-2)\n"); |
|---|
| 716 | return (undef, -2); |
|---|
| 717 | } |
|---|
| 718 | my $copyfrom_path = $res->{file}[0][$i]; |
|---|
| 719 | my $copyfrom_rev = $res->{erev}[0][$i]; |
|---|
| 720 | debug("p4_get_copyfrom_filerev: returning $copyfrom_path$copyfrom_rev\n"); |
|---|
| 721 | return ($copyfrom_path, $copyfrom_rev); |
|---|
| 722 | } |
|---|
| 723 | |
|---|
| 724 | ######################################################################## |
|---|
| 725 | # Return Subversion revision of Perforce file at given revision. |
|---|
| 726 | ######################################################################## |
|---|
| 727 | |
|---|
| 728 | sub p4_file2svnrev { |
|---|
| 729 | my ($file, $rev) = @_; |
|---|
| 730 | debug("p4_file2svnrev: $file$rev\n"); |
|---|
| 731 | my $p4 = p4_init(); |
|---|
| 732 | my $filelog = $p4->Filelog($file . $rev); |
|---|
| 733 | die "@{$p4->Errors()}" if $p4->ErrorCount(); |
|---|
| 734 | my $change = shift @{$filelog->{change}}; |
|---|
| 735 | die "can't map $file$rev to Subversion revision" |
|---|
| 736 | unless defined $rev_map{$change}; |
|---|
| 737 | return $rev_map{$change}; |
|---|
| 738 | } |
|---|
| 739 | |
|---|
| 740 | ######################################################################## |
|---|
| 741 | # Routines for converting Perforce actions to Subversion dump/restore |
|---|
| 742 | # records. |
|---|
| 743 | ######################################################################## |
|---|
| 744 | |
|---|
| 745 | sub p4add2svn { |
|---|
| 746 | my ($path, $type, $change) = @_; |
|---|
| 747 | |
|---|
| 748 | my $svn_path = depot2svnpath($path) |
|---|
| 749 | or die "Unable to determine SVN path for $path\n"; |
|---|
| 750 | svn_add_parent_dirs($svn_path); |
|---|
| 751 | my $content = p4_get_file_content("$path\@$change"); |
|---|
| 752 | munge_keywords(\$content) if $type =~ /text$/; |
|---|
| 753 | chop $content if $type =~ /symlink$/; |
|---|
| 754 | my $properties = properties($type, \$content); |
|---|
| 755 | if ($type =~ /symlink$/) { |
|---|
| 756 | svn_add_symlink($svn_path, $properties, $content); |
|---|
| 757 | } else { |
|---|
| 758 | svn_add_file($svn_path, $properties, $content); |
|---|
| 759 | } |
|---|
| 760 | } |
|---|
| 761 | |
|---|
| 762 | sub p4delete2svn { |
|---|
| 763 | my ($path, $type, $change) = @_; |
|---|
| 764 | |
|---|
| 765 | my $svn_path = depot2svnpath($path) |
|---|
| 766 | or die "Unable to determine SVN path for $path\n"; |
|---|
| 767 | svn_delete($svn_path); |
|---|
| 768 | push @deleted_files, $svn_path; |
|---|
| 769 | } |
|---|
| 770 | |
|---|
| 771 | sub p4edit2svn { |
|---|
| 772 | my ($path, $type, $change) = @_; |
|---|
| 773 | my $svn_path = depot2svnpath($path) |
|---|
| 774 | or die "Unable to determine SVN path for $path\n"; |
|---|
| 775 | my $content = p4_get_file_content("$path\@$change"); |
|---|
| 776 | munge_keywords(\$content) if $type =~ /text$/; |
|---|
| 777 | my $properties = properties($type, \$content); |
|---|
| 778 | svn_edit_file($svn_path, $properties, $content); |
|---|
| 779 | } |
|---|
| 780 | |
|---|
| 781 | sub p4branch2svn { |
|---|
| 782 | my ($path, $type, $change) = @_; |
|---|
| 783 | my $svn_path = depot2svnpath($path) |
|---|
| 784 | or die "Unable to determine SVN path for $path\n"; |
|---|
| 785 | my ($from_path, $from_rev) = p4_get_copyfrom_filerev($path, $change); |
|---|
| 786 | unless ($from_path) { |
|---|
| 787 | if ($from_rev) { |
|---|
| 788 | p4add2svn($path, $type, $change); |
|---|
| 789 | } |
|---|
| 790 | else { |
|---|
| 791 | warn "Ignoring $path\@$change\n"; |
|---|
| 792 | } |
|---|
| 793 | return; |
|---|
| 794 | } |
|---|
| 795 | unless (p4_files_are_identical($from_path.$from_rev, "$path\@$change")) { |
|---|
| 796 | p4add2svn($path, $type, $change); |
|---|
| 797 | return; |
|---|
| 798 | } |
|---|
| 799 | svn_add_parent_dirs($svn_path); |
|---|
| 800 | my $content = p4_get_file_content($from_path . $from_rev); |
|---|
| 801 | my $svn_from_path = depot2svnpath($from_path); |
|---|
| 802 | munge_keywords(\$content) if $type =~ /text$/; |
|---|
| 803 | my $properties = properties($type, \$content); |
|---|
| 804 | if ($svn_from_path) { |
|---|
| 805 | my $svn_from_rev = p4_file2svnrev($from_path, $from_rev); |
|---|
| 806 | svn_add_copy($svn_path, $properties, $content, |
|---|
| 807 | $svn_from_path, $svn_from_rev); |
|---|
| 808 | } |
|---|
| 809 | else { |
|---|
| 810 | # Source is outside the branch(es) we're processing: treat as add |
|---|
| 811 | svn_add_file($svn_path, $properties, $content); |
|---|
| 812 | } |
|---|
| 813 | } |
|---|
| 814 | |
|---|
| 815 | sub p4integrate2svn { |
|---|
| 816 | my ($path, $type, $change) = @_; |
|---|
| 817 | my $svn_path = depot2svnpath($path) |
|---|
| 818 | or die "Unable to determine SVN path for $path\n"; |
|---|
| 819 | my ($from_path, $from_rev) = p4_get_copyfrom_filerev($path, $change); |
|---|
| 820 | unless ($from_path) { |
|---|
| 821 | if ($from_rev) { |
|---|
| 822 | p4edit2svn($path, $type, $change); |
|---|
| 823 | } |
|---|
| 824 | else { |
|---|
| 825 | warn "Ignoring $path\@$change\n"; |
|---|
| 826 | } |
|---|
| 827 | return; |
|---|
| 828 | } |
|---|
| 829 | unless (p4_files_are_identical($from_path.$from_rev, "$path\@$change")) { |
|---|
| 830 | p4edit2svn($path, $type, $change); |
|---|
| 831 | return; |
|---|
| 832 | } |
|---|
| 833 | my $content = p4_get_file_content($from_path . $from_rev); |
|---|
| 834 | my $svn_from_path = depot2svnpath($from_path); |
|---|
| 835 | munge_keywords(\$content) if $type =~ /text$/; |
|---|
| 836 | my $properties = properties($type, \$content); |
|---|
| 837 | if ($svn_from_path) { |
|---|
| 838 | my $svn_from_rev = p4_file2svnrev($from_path, $from_rev); |
|---|
| 839 | svn_replace_copy($svn_path, $properties, $content, |
|---|
| 840 | $svn_from_path, $svn_from_rev); |
|---|
| 841 | } |
|---|
| 842 | else { |
|---|
| 843 | # Source is outside the branch(es) we're processing: treat as edit |
|---|
| 844 | svn_edit_file($svn_path, $properties, $content); |
|---|
| 845 | } |
|---|
| 846 | } |
|---|
| 847 | |
|---|
| 848 | ######################################################################## |
|---|
| 849 | # Main processing |
|---|
| 850 | ######################################################################## |
|---|
| 851 | |
|---|
| 852 | process_options(); |
|---|
| 853 | |
|---|
| 854 | my %p42svn = ("add" => \&p4add2svn, |
|---|
| 855 | "delete" => \&p4delete2svn, |
|---|
| 856 | "edit" => \&p4edit2svn, |
|---|
| 857 | "branch" => \&p4branch2svn, |
|---|
| 858 | "integrate" => \&p4integrate2svn); |
|---|
| 859 | |
|---|
| 860 | my $svn_rev = 1; |
|---|
| 861 | |
|---|
| 862 | binmode(STDOUT); |
|---|
| 863 | svn_dump_format_version(SVN_FS_DUMP_FORMAT_VERSION); |
|---|
| 864 | foreach my $change_num (p4_get_changes()) { |
|---|
| 865 | my $details = p4_get_change_details($change_num); |
|---|
| 866 | my @properties = ("svn:log" => $details->{log}, |
|---|
| 867 | "svn:author" => $details->{author}, |
|---|
| 868 | "svn:date" => $details->{date}); |
|---|
| 869 | @deleted_files = (); |
|---|
| 870 | svn_revision($svn_rev, \@properties); |
|---|
| 871 | $rev_map{$change_num} = $svn_rev++; |
|---|
| 872 | foreach (@{$details->{actions}}) { |
|---|
| 873 | if (defined $p42svn{$_->{action}}) { |
|---|
| 874 | $p42svn{$_->{action}}->($_->{path}, $_->{type}, $change_num); |
|---|
| 875 | } |
|---|
| 876 | else { |
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| 877 | warn "Action $_->{action} not recognized " |
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| 878 | ."($_->{path}\@$change_num)\n"; |
|---|
| 879 | } |
|---|
| 880 | } |
|---|
| 881 | # |
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| 882 | # This must be done last in case files are both created and |
|---|
| 883 | # deleted in the same directory in the course of a single change. |
|---|
| 884 | # |
|---|
| 885 | svn_delete_empty_parent_dirs(@deleted_files); |
|---|
| 886 | } |
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