Heroku buildpack: Lineman

This is a Heroku buildpack for Lineman apps.

Usage

Example usage:

$ heroku create --stack cedar --buildpack http://github.com/linemanjs/heroku-buildpack-lineman.git

Or, for an existing heroku app:

$ heroku config:set BUILDPACK_URL=http://github.com/linemanjs/heroku-buildpack-lineman.git

And the output will look like this when you push to heroku:

$ git push heroku master
...
-----> Heroku receiving push
-----> Fetching custom buildpack
-----> Lineman app detected
-----> Vendoring node 0.4.7
-----> Installing dependencies with npm ....
...
-----> Building runtime environment
-----> Building static web assets with lineman
Running "configure" task

Running "common" task

Running "coffee:compile" (coffee) task
File generated/js/app.coffee.js created.
File generated/js/spec.coffee.js created.
>> Destination not written because compiled files were empty.

Running "less:compile" (less) task
File generated/css/app.less.css created.

Running "jshint:files" (jshint) task
>> 0 files lint free.

Running "handlebars:compile" (handlebars) task
>> Destination not written because compiled files were empty.

Running "jst:compile" (jst) task
File "generated/template/underscore.js" created.

Running "configure" task

Running "concat:js" (concat) task
File "generated/js/app.js" created.

Running "concat:spec" (concat) task
File "generated/js/spec.js" created.

Running "concat:css" (concat) task
File "generated/css/app.css" created.

Running "images:dev" (images) task
Copying images to 'generated/img'

Running "webfonts:dev" (webfonts) task
Copying webfonts to 'generated/webfonts'

Running "homepage:dev" (homepage) task
Homepage HTML written to 'generated/index.html'

Running "dist" task

Running "uglify:js" (uglify) task
File "dist/js/app.min.js" created.
Uncompressed size: 38578 bytes.
Compressed size: 4452 bytes gzipped (13217 bytes minified).

Running "cssmin:compress" (cssmin) task
File dist/css/app.min.css created.
Uncompressed size: 69 bytes.
Compressed size: 45 bytes gzipped (57 bytes minified).

Running "images:dist" (images) task
Copying images to 'dist/img'

Running "webfonts:dist" (webfonts) task
Copying webfonts to 'dist/webfonts'

Running "homepage:dist" (homepage) task
Homepage HTML written to 'dist/index.html'

Done, without errors.
       Web assets built
-----> Bundling Apache v2.2.19
-----> Discovering process types
       Procfile declares types   -> (none)
       Default types for Lineman -> web

-----> Compiled slug size: 34.8MB
-----> Launching... done, v9
       http://pacific-fortress-3824.herokuapp.com deployed to Heroku

To [email protected]:pacific-fortress-3824.git
   9b88fd7..e4bfa19  HEAD -> master

Apache Modules

Custom Apache modules saved to a directory named apache_modules in your app root will be deployed to Heroku. You'll add need to make the corresponding change to conf/httpd.conf, adding a line to load the module. Here's an example that will load the headers_module:

LoadModule headers_module  modules/mod_headers.so

Building Apache Modules

To build an Apache module, we'll use a Heroku one-off dyno:

$ heroku run bash

Once your one-off dyno is up and running, download a copy the Apache source, matching the version you'll be running in production. This buildpack uses 2.2.19.

$ curl http://archive.apache.org/dist/httpd/httpd-2.2.19.tar.gz | tar zx

Change to the Apache source directory:

$ cd httpd-2.2.19

Build the module with apxs

$ /app/apache/bin/apxs -i -c -Wl,lz modules/metadata/mod_headers.c

Last, copy (scp works great) the compiled module from the one-off dyno (/app/apache/modules) and commit it to your app's apache_modules directory (you might need to create this directory).

HTML5 PushState

To add support for pushstate urls you can use the mod_rewrite module. Follow the instructions above to build and add the mod_rewrite to your project. The only difference to note when building is mod_rewrite.c is found in modules/mappers instead of modules/metadata:

$ /app/apache/bin/apxs -i -c -Wl,lz modules/mappers/mod_rewrite.c

Once you have mod_rewrite.so in your apache_modules directory you can add the following rewrite rule to config/httpd.conf:

# Handle push state urls
# any request that is NOT for a file or directory rewrite to index.html
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-f
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-d
    RewriteRule (.*) /index.html [L,QSA]
</IfModule>

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