Guitar Hero, Wikipedia, VK, Perl, Like it!

Anatoly SharifulinYAPC::Russia 2012

Another story about me and Perl

Guitar Hero: guitar, drums and microphone

Finally got myself a present

I’m Playing...

Plus a singer :-)

Guitar Hero for «kids»Hand made :-)

— Who plays or likes Guitar Hero?

— Why don't you come by? :-)

That's amazing, yeah, but...

1. Few familiar tracks

2. Too many discs,what to buy,

what songs are there?

Eureka!I know what to do...

and I know Perl!

1. WikipediaOn wiki I found all disc and track details

1. WikipediaWrote a Perl script to parse all tracklists

and save to a database

1. Wikipediamap + grep + re + insert db

2. VK.comThere are all (or almost all) tracks

and API on VKontakte!

2. VK.comCreated a VK app,

accessed audio files through the OAuth Authorization

2. VK.comWrote an ojo script to find links

to all mp3 through API

2. VK.comAPI Limits: no parallel requests

and 100 requests per hour from one user

2. VK.comTrack search: corrected some tracks manually, umlauts and NFD (thanks to @nordicdyno)

my $t = NFD( $_->{title} );$t =~ s/\pM//og;

my $q = b( $t )->url_escape->to_string;my $r = g( "https://api.vkontakte.ru/method/audio.search?q=$q&lyrics=1&count=1&access_token=$conf->{token}")->json;

2.VK.comWith the same ojo wrote a downloader of mp3-files

(in one stream, so not to cross the limits)

2.VK.comThe only screw-up of ojo:

all files are of the same length; solution:$ENV{MOJO_MAX_MESSAGE_SIZE} = 100*1024*1024

2.VK.comDownloaded over 650 tracks,

no fun in listening to a local player...

3. Frodio.comCreated a radiostation with a random playlist;

a tiny bug: not all tracks contain correct ID3-tags

3. Frodio.comWrote a script to edit tags

using MP3::Tag (delete ID3v1, set ID3v2)

3. Frodio.comArtist — Track title [GH disc name]

3. Frodio.comTook two days to get a good radio

— Radio Guitar Herohttp://guitarhero.frodio.com

Now I'm kept abreast of all GH tracks

Facebook EffectBut I felt lonely and posted to GH Facebook group

about radio

Facebook Effect2250+ Likes, 43 Shared, 76 Comments,

78 peak of online listeners

Perl, Guitar Hero and Rock’n’Roll

use Perl or die;

Thanks!Anatoly SharifulinYAPC::Russia 2012