po plugin: implement linking specification in one of the main cases

[git.ikiwiki.info.git] / IkiWiki / Plugin / amazon_s3.pm

diff --git a/IkiWiki/Plugin/amazon_s3.pm b/IkiWiki/Plugin/amazon_s3.pm
index f062a4295f60ee08f151781d92ecb38de7118b7b..597539c13b0f2c218955dc81da2f26dfb7aa6fb4 100644 (file)
--- a/IkiWiki/Plugin/amazon_s3.pm
+++ b/IkiWiki/Plugin/amazon_s3.pm
@@ -17,9 +17,79 @@ BEGIN {
 };
 
 sub import { #{{{
 };
 
 sub import { #{{{

+       hook(type => "getopt", id => "amazon_s3", call => \&getopt);
+       hook(type => "getsetup", id => "amazon_s3", call => \&getsetup);

        hook(type => "checkconfig", id => "amazon_s3", call => \&checkconfig);
 } # }}}
 
        hook(type => "checkconfig", id => "amazon_s3", call => \&checkconfig);
 } # }}}
 

+sub getopt () { #{{{
+        eval q{use Getopt::Long};
+        error($@) if $@;
+        Getopt::Long::Configure('pass_through');
+        GetOptions("delete-bucket" => sub {
+               my $bucket=getbucket();
+               debug(gettext("deleting bucket.."));
+               my $resp = $bucket->list_all or die $bucket->err . ": " . $bucket->errstr;
+               foreach my $key (@{$resp->{keys}}) {
+                       debug("\t".$key->{key});
+                       $bucket->delete_key($key->{key}) or die $bucket->err . ": " . $bucket->errstr;
+               }
+               $bucket->delete_bucket or die $bucket->err . ": " . $bucket->errstr;
+               debug(gettext("done"));
+               exit(0);
+       });
+} #}}}
+
+sub getsetup () { #{{{
+       return
+               plugin => {
+                       safe => 0,
+                       rebuild => 0,
+               },
+               amazon_s3_key_id => {
+                       type => "string",
+                       example => "XXXXXXXXXXXXXXXXXXXX",
+                       description => "public access key id",
+                       safe => 1,
+                       rebuild => 0,
+               },
+               amazon_s3_key_id => {
+                       type => "string",
+                       example => "$ENV{HOME}/.s3_key",
+                       description => "file holding secret key (must not be readable by others!)",
+                       safe => 0, # ikiwiki reads this file
+                       rebuild => 0,
+               },
+               amazon_s3_bucket => {
+                       type => "string",
+                       example => "mywiki",
+                       description => "globally unique name of bucket to store wiki in",
+                       safe => 1,
+                       rebuild => 1,
+               },
+               amazon_s3_prefix => {
+                       type => "string",
+                       example => "wiki/",
+                       description => "a prefix to prepend to each page name",
+                       safe => 1,
+                       rebuild => 1,
+               },
+               amazon_s3_location => {
+                       type => "string",
+                       example => "EU",
+                       description => "which S3 datacenter to use (leave blank for default)",
+                       safe => 1,
+                       rebuild => 1,
+               },
+               amazon_s3_dupindex => {
+                       type => "boolean",
+                       example => 0,
+                       description => "store each index file twice? (allows urls ending in \"/index.html\" and \"/\")",
+                       safe => 1,
+                       rebuild => 1,
+               },
+} #}}}
+

 sub checkconfig { #{{{
        foreach my $field (qw{amazon_s3_key_id amazon_s3_key_file
                              amazon_s3_bucket}) {
 sub checkconfig { #{{{
        foreach my $field (qw{amazon_s3_key_id amazon_s3_key_file
                              amazon_s3_bucket}) {


@@ -71,6 +141,29 @@ sub getbucket { #{{{
 } #}}}
 }
 
 } #}}}
 }
 

+# Given a file, return any S3 keys associated with it.
+sub file2keys ($) { #{{{
+       my $file=shift;
+
+       my @keys;
+       if ($file =~ /^\Q$config{destdir}\/\E(.*)/) {
+               push @keys, $config{amazon_s3_prefix}.$1;
+
+               # Munge foo/index.html to foo/
+               if ($keys[0]=~/(^|.*\/)index.$config{htmlext}$/) {
+                       # A duplicate might need to be stored under the
+                       # unmunged name too.
+                       if (!$config{usedirs} || $config{amazon_s3_dupindex}) {
+                               push @keys, $1;
+                       }
+                       else {
+                               @keys=($1);
+                       }
+               }
+       }
+       return @keys;
+} #}}}
+

 package IkiWiki;
 use File::MimeInfo;
 use Encode;
 package IkiWiki;
 use File::MimeInfo;
 use Encode;


@@ -85,21 +178,11 @@ sub writefile ($$$;$$) { #{{{
 
        # First, write the file to disk.
        my $ret=$IkiWiki::Plugin::amazon_s3::subs{'IkiWiki::writefile'}->($file, $destdir, $content, $binary, $writer);
 
        # First, write the file to disk.
        my $ret=$IkiWiki::Plugin::amazon_s3::subs{'IkiWiki::writefile'}->($file, $destdir, $content, $binary, $writer);

-
-       # Now, determine if the file was written to the destdir.
-       # writefile might be used for writing files elsewhere.
-       # Also, $destdir might be set to a subdirectory of the destdir.
-       my $key;
-       if ($destdir eq $config{destdir}) {
-               $key=$file;
-       }
-       elsif ("$destdir/$file" =~ /^\Q$config{destdir}\/\E(.*)/) {
-               $key=$1;
-       }
+               
+       my @keys=IkiWiki::Plugin::amazon_s3::file2keys("$destdir/$file");

 
        # Store the data in S3.
 
        # Store the data in S3.

-       if (defined $key) {
-               $key=$config{amazon_s3_prefix}.$key;
+       if (@keys) {

                my $bucket=IkiWiki::Plugin::amazon_s3::getbucket();
 
                # The http layer tries to downgrade utf-8
                my $bucket=IkiWiki::Plugin::amazon_s3::getbucket();
 
                # The http layer tries to downgrade utf-8


@@ -108,40 +191,36 @@ sub writefile ($$$;$$) { #{{{
                # so force convert it to bytes.
                $content=encode_utf8($content) if defined $content;
 
                # so force convert it to bytes.
                $content=encode_utf8($content) if defined $content;
 

-               if (defined $content && ! length $content) {
-                       # S3 doesn't allow storing empty files!
-                       $content=" ";
-               }
-               

                my %opts=(
                        acl_short => 'public-read',
                        content_type => mimetype("$destdir/$file"),
                );
                my %opts=(
                        acl_short => 'public-read',
                        content_type => mimetype("$destdir/$file"),
                );

-               my $res;
-               if (! $writer) {
-                       $res=$bucket->add_key($key, $content, \%opts);
-               }
-               else {
-                       # read back in the file that the writer emitted
-                       $res=$bucket->add_key_filename($key, "$destdir/$file", \%opts);
-               }
-               if ($res && $key=~/(^|\/)index.$config{htmlext}$/) {
-                       # index.html files are a special case. Since S3 is
-                       # not a normal web server, it won't serve up
-                       # foo/index.html when foo/ is requested. So the
-                       # file has to be stored twice. (This is bad news
-                       # when usedirs is enabled!)
-                       $key=~s/index.$config{htmlext}$//;
+
+               # If there are multiple keys to write, data is sent
+               # multiple times.
+               # TODO: investigate using the new copy operation.
+               #       (It may not be robust enough.)
+               foreach my $key (@keys) {
+                       my $res;

                        if (! $writer) {
                                $res=$bucket->add_key($key, $content, \%opts);
                        }
                        else {
                        if (! $writer) {
                                $res=$bucket->add_key($key, $content, \%opts);
                        }
                        else {

-                               $res=$bucket->add_key_filename($key, "$destdir/$file", \%opts);
+                               # This test for empty files is a workaround
+                               # for this bug:
+                               # http://rt.cpan.org//Ticket/Display.html?id=35731
+                               if (-z "$destdir/$file") {
+                                       $res=$bucket->add_key($key, "", \%opts);
+                               }
+                               else {
+                                       # read back in the file that the writer emitted
+                                       $res=$bucket->add_key_filename($key, "$destdir/$file", \%opts);
+                               }
+                       }
+                       if (! $res) {
+                               error(gettext("Failed to save file to S3: ").
+                                       $bucket->err.": ".$bucket->errstr."\n");

                        }
                        }

-               }
-               if (! $res) {
-                       error(gettext("Failed to save file to S3: ").
-                               $bucket->err.": ".$bucket->errstr."\n");

                }
        }
 
                }
        }
 


@@ -152,20 +231,18 @@ sub writefile ($$$;$$) { #{{{
 sub prune ($) { #{{{
        my $file=shift;
 
 sub prune ($) { #{{{
        my $file=shift;
 

-       # If a file in the destdir is being pruned, need to delete it out
-       # of S3 as well.
-       if ($file =~ /^\Q$config{destdir}\/\E(.*)/) {
-               my $key=$config{amazon_s3_prefix}.$1;
+       my @keys=IkiWiki::Plugin::amazon_s3::file2keys($file);
+
+       # Prune files out of S3 too.
+       if (@keys) {

                my $bucket=IkiWiki::Plugin::amazon_s3::getbucket();
                my $bucket=IkiWiki::Plugin::amazon_s3::getbucket();

-               my $res=$bucket->delete_key($key);
-               if ($res && $key=~/(^|\/)index.$config{htmlext}$/) {
-                       # index.html special case: Delete other file too
-                       $key=~s/index.$config{htmlext}$//;
-                       $res=$bucket->delete_key($key);
-               }
-               if (! $res) {
-                       error(gettext("Failed to delete file from S3: ").
-                               $bucket->err.": ".$bucket->errstr."\n");
+
+               foreach my $key (@keys) {
+                       my $res=$bucket->delete_key($key);
+                       if (! $res) {
+                               error(gettext("Failed to delete file from S3: ").
+                                       $bucket->err.": ".$bucket->errstr."\n");
+                       }

                }
        }
 
                }
        }