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put /assets in .slugignore for Heroku deployments with asset_sync (S3/CDN)

I am not sure if there is an existing way to do this but with asset_sync the idea is that assets are served from S3 or some CDN(e.g. cloudfront) thus not needing to be part of the application slug. Is it possible to have /assets in .slugignore on Heroku and still get asset:precompile and asset_sync to work? If I just put /assets in .slugignore, they are not compiled with the digest and references to assets are without the fingerprint and thus don't work.

like image 507
Bashir E Avatar asked Oct 31 '12 00:10

Bashir E


1 Answers

Editing .slugignore don't work there, because excluding files begins before all compilation steps on Heroku. But we need to compile these all, move these to S3 and only after that delete these.

I wrote some code into my Rakefile, small script, that deletes all unusable files by extension filter:

Rake::Task["assets:precompile"].enhance do
    puts 'my assets:precompile hook is started!'
    dir_path = "#{Dir.pwd}/public/sites-fromfuture-net/"
    records = Dir.glob("#{dir_path}**/*")
    records.each do |f|
        if f =~ /.*.png$/ or
                f =~ /.*.jpg$/ or
                f =~ /.*.eot$/ or
                f =~ /.*.svg$/ or
                f =~ /.*.woff$/ or
                f =~ /.*.ttf$/ or
                f =~ /.*.otf$/ or
                f =~ /.*.css$/ or
                f =~ /.*.js$/ or
                f =~ /.*.wav$/ then
            File.delete(f)
        end
    end
    # puts Dir.glob("#{dir_path}**/*")
    puts 'my assets:precompile hook is finished!'
end

And one more thing: I use a heroku-deflater gem, which gzips all css and js assets, so I delete all .css and .js files by script but don't delete .css.gz and .js.gz files, because of rails assets checking.

like image 116
gambala Avatar answered Sep 19 '22 22:09

gambala