/[pxelator]/couchdb/design-couch.pl
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Contents of /couchdb/design-couch.pl

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Revision 248 - (show annotations)
Tue Aug 18 12:18:39 2009 UTC (9 years, 10 months ago) by dpavlin
File MIME type: text/plain
File size: 4081 byte(s)
CouchDB view push/pull script
1 #!/usr/bin/perl
2
3 use warnings;
4 use strict;
5
6 use LWP::UserAgent;
7 use JSON;
8 use Data::Dump qw/dump/;
9 use File::Path qw/mkpath/;
10 use File::Slurp qw//;
11 use File::Find;
12 use HTTP::Request::Common;
13 use MIME::Base64;
14
15 use lib qw(lib ../lib);
16 use Media::Type::Simple;
17
18
19 # design-couch.pl
20 #
21 # 04/26/09 21:12:28 CEST Dobrica Pavlinusic <dpavlin@rot13.org>
22
23 my ( $command, $database, $design ) = @ARGV;
24 die "usage: $0 [push|pull] database design\n" unless $database && $design;
25
26 chdir $design || die "can't find $design: $!";
27
28 my $ua = LWP::UserAgent->new;
29
30 my $url = "http://localhost:5984/$database/_design/$design";
31
32 sub create_path {
33 my $path = shift;
34 if ( $path =~ m{/} ) {
35 my $dir = $path;
36 $dir =~ s{/[^/]+$}{};
37 mkpath $dir if ! -e $dir;
38 #warn "# dir $dir";
39 }
40 }
41 sub write_file {
42 my ( $path, $content ) = @_;
43 $path =~ s{^/+}{};
44 create_path $path;
45 File::Slurp::write_file $path, $content;
46 print "$path ", -s $path, " bytes created\n";
47 }
48
49 sub write_attachment {
50 my ( $path ) = @_;
51 my $file = "_attachemnts/$path";
52 create_path $file;
53 $ua->mirror( "$url/$path", $file );
54 print "detached $file ", -s $file, " bytes\n";
55 }
56
57
58 sub unroll {
59 my ( $tree, $path ) = @_;
60
61 my $ref = ref $tree;
62 if ( $ref eq 'HASH' ) {
63 foreach my $child ( keys %$tree ) {
64 if ( $child eq '_attachments' ) {
65 write_attachment $_ foreach keys %{ $tree->{$child} };
66 } else {
67 unroll( $tree->{$child}, $path ? "$path/$child" : $child );
68 }
69 }
70 } elsif ( $ref ) {
71 warn "UNSUPPORTED $path $ref ", dump( $tree );
72 write_file "$path.json", to_json $tree;
73 } elsif ( $ref eq '' ) {
74
75 if ( $tree =~ m[^\s*(function(.*){.*}|/\*|//|var)]is ) {
76 $path .= '.js';
77 } elsif ( $tree =~ m{<%=.*%>} ) { # couchapp template
78 $path .= '.html';
79 } else {
80 warn "# can't detect type of $path\n";
81 }
82
83 write_file $path, $tree;
84 }
85
86 }
87
88 if ( $command eq 'pull' ) {
89
90 warn "# get $url\n";
91 my $response = $ua->get( $url );
92 die $response->status_line if $response->is_error;
93
94 my $json = $response->decoded_content;
95 write_file "../$database-$design.pull.js", $json;
96
97 unroll( from_json $json, '' );
98
99 } elsif ( $command eq 'push' ) {
100
101 my $json;
102
103 find({ no_chdir => 1, wanted => sub {
104 my $path = $File::Find::name;
105 return unless -f $path;
106
107 warn "## $path\n";
108
109 $path =~ s{^\./}{};
110
111 if ( $path =~ m{_attachemnts/(.+)} ) {
112
113 my $filename = $1;
114 my $content_type = 'text/plain';
115 $content_type = type_from_ext($1) if $filename =~ m{\.(\w+)$};
116
117 my $data = File::Slurp::read_file( $path );
118 $data = encode_base64( $data );
119 # XXX inline attachments must be single line
120 # XXX http://wiki.apache.org/couchdb/HTTP_Document_API
121 $data =~ s/[\n\r]+//gs;
122 $json->{_attachments}->{ $filename } = {
123 content_type => $content_type,
124 data => $data,
125 };
126 return;
127 }
128
129 my $data = File::Slurp::read_file( $path );
130 $path =~ s[/]['}->{']g;
131 $path =~ s{\.\w+$}{};
132 my $code = "\$json->{'$path'} = \$data;";
133 eval $code;
134 die "ERROR in $code: $@" if $@;
135 # warn "## json = ",dump( $json );
136 }}, '.' );
137
138 if ( ! defined $json->{_id} ) {
139 warn "creating _id for document\n";
140 $json->{_id} = $$ . '-' . time();
141 }
142 delete( $json->{_rev} ) && warn "removing _rev from document\n";
143
144 print "push $database/_design/$design\n";
145 write_file "../$database-$design.push.js", to_json $json;
146
147 warn "# put $url\n";
148 my $response = $ua->request(
149 HTTP::Request::Common::PUT(
150 $url,
151 'Content-Type' => 'application/json',
152 Content => to_json $json,
153 )
154 );
155
156 if ( $response->code == 409 ) {
157 warn "## update $url\n";
158 my $response = $ua->get( $url );
159 die $response->status_line if $response->is_error;
160
161 my $data = from_json $response->decoded_content;
162 $json->{$_} = $data->{$_} foreach ( '_rev', '_id' );
163
164 $response = $ua->request( HTTP::Request::Common::PUT($url, 'Content-Type' => 'application/json', Content => to_json $json ) );
165 die $response->status_line if $response->is_error;
166 warn "push updated $url\n";
167 } else {
168 die $response->status_line if $response->is_error;
169 warn "push new $url\n";
170 }
171
172 } else {
173 die "$0: unknown command $command";
174 }
175

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