django-static-precompiler 1.0

Django template tags to compile all kinds of static files (SASS, LESS, Stylus, CoffeeScript, Babel).

Django Static Precompiler

Django Static Precompiler provides template tags to compile CoffeeScript, SASS / SCSS, LESS, and Babel. It works with both inline code and external files.

Installation

1. Add “static_precompiler” to INSTALLED_APPS setting.

2. Initialize DB:

   • On Django < 1.7 run syncdb or migrate static_precompiler if you use South (1.0 is required).

   • On Django >= 1.7 run migrate static_precompiler.

3. Make sure that you have necessary compilers installed.

4. Optionally, you can specify the full path to compilers (see below).

5. In case you use Django’s staticfiles contrib app you have to add static-precompiler’s file finder to the STATICFILES_FINDERS setting, for example:

   STATICFILES_FINDERS = (
       'django.contrib.staticfiles.finders.FileSystemFinder',
       'django.contrib.staticfiles.finders.AppDirectoriesFinder',
       # other finders..
       'static_precompiler.finders.StaticPrecompilerFinder',
   )

Note that by default compiled files are saved into COMPILED folder under your STATIC_ROOT (or MEDIA_ROOT if you have no STATIC_ROOT in your settings). You can change this folder with STATIC_PRECOMPILER_ROOT and STATIC_PRECOMPILER_OUTPUT_DIR settings.

Note that all relative URLs in your stylesheets are converted to absolute URLs using your STATIC_URL setting.

compile template filter

compile is a template filter that allows to compile any source file supported by compilers configured with STATIC_PRECOMPILER_COMPILERS settings.

Example Usage

{% load compile_static %}
{% load static %}

<script src="{% static "path/to/script.coffee"|compile %}"></script>
<link rel="stylesheet" href="{% static "path/to/styles1.less"|compile %}" />
<link rel="stylesheet" href="{% static "path/to/styles2.scss"|compile %}" />

renders to:

<script src="/static/COMPILED/path/to/script.js"></script>
<link rel="stylesheet" href="/static/COMPILED/path/to/styles1.css" />
<link rel="stylesheet" href="/static/COMPILED/path/to/styles2.css" />

{% inlinecompile %} tag

Compiles everything between {% inlinecompile %} and {% endinlinecompile %} with compiler specified by name. Compiler must be specified in STATIC_PRECOMPILER_COMPILERS setting. Names for default compilers are:

• coffeescript

• babel

• less

• sass

• scss

• stylus

Example Usage

{% load compile_static %}

<script type="text/javascript">
  {% inlinecompile "coffeescript" %}
    console.log "Hello, World!"
  {% endinlinecompile %}
</script>

renders to:

<script type="text/javascript">
  (function() {
    console.log("Hello, World!");
  }).call(this);
</script>

General settings

STATIC_PRECOMPILER_COMPILERS

List of enabled compilers. You can modify it to enable your custom compilers. Default:

STATIC_PRECOMPILER_COMPILERS = (
    'static_precompiler.compilers.CoffeeScript',
    'static_precompiler.compilers.Babel',
    'static_precompiler.compilers.SASS',
    'static_precompiler.compilers.SCSS',
    'static_precompiler.compilers.LESS',
    'static_precompiler.compilers.Stylus',
)

You can specify compiler options using the following format:

STATIC_PRECOMPILER_COMPILERS = (
    ('static_precompiler.compilers.CoffeeScript', {"executable": "/usr/bin/coffeescript"}),
    ('static_precompiler.compilers.SCSS', {"compass_enabled": True}),
)

STATIC_PRECOMPILER_ROOT

Controls the absolute file path that compiled files will be written to. Default: STATIC_ROOT.

STATIC_PRECOMPILER_OUTPUT_DIR

Controls the directory inside STATIC_PRECOMPILER_ROOT that compiled files will be written to. Default: "COMPILED".

STATIC_PRECOMPILER_USE_CACHE

Whether to use cache for inline compilation. Default: True.

STATIC_PRECOMPILER_CACHE_TIMEOUT

Cache timeout for inline styles (in seconds). Default: 30 days.

STATIC_PRECOMPILER_MTIME_DELAY

Cache timeout for reading the modification time of source files (in seconds). Default: 10 seconds.

STATIC_PRECOMPILER_CACHE_NAME

Name of the cache to be used. If not specified then the default django cache is used. Default: None.

STATIC_PRECOMPILER_PREPEND_STATIC_URL

Add STATIC_URL to the output of template tags and filters. Default: False

STATIC_PRECOMPILER_DISABLE_AUTO_COMPILE

Disable automatic compilation from template tags or compile_static utility function. Files are compiled only with compilestatic command (see below). Default:: False

STATIC_PRECOMPILER_LIST_FILES

Whether or not static_precompiler.finders.StaticPrecompilerFinder will list compiled files when collectstatic command is executed. Set to True if you want compiled files to be found by collectstatic. Default:: False.

Compiler specific settings

CoffeeScript

executable

Path to CoffeeScript compiler executable. Default: "coffee".

Example:

STATIC_PRECOMPILER_COMPILERS = (
    ('static_precompiler.compilers.CoffeeScript', {"executable": "/usr/bin/coffee"}),
)

Babel

executable

Path to Babel compiler executable. Default: "babel".

Example:

STATIC_PRECOMPILER_COMPILERS = (
    ('static_precompiler.compilers.Babel', {"executable": "/usr/bin/babel"}),
)

SASS / SCSS

executable

Path to SASS compiler executable. Default: “sass”.

compass_enabled

Boolean. Wheter to use compass or not. Compass must be installed in your system. Run “sass –compass” and if no error is shown it means that compass is installed.

Example:

STATIC_PRECOMPILER_COMPILERS = (
    ('static_precompiler.compilers.SCSS', {"executable": "/usr/bin/sass", "compass_enabled": True}),
)

LESS

executable

Path to LESS compiler executable. Default: "lessc".

Example:

STATIC_PRECOMPILER_COMPILERS = (
    ('static_precompiler.compilers.LESS', {"executable": "/usr/bin/lessc"),
)

Stylus

executable

Path to Stylus compiler executable. Default: "stylus".

Example:

STATIC_PRECOMPILER_COMPILERS = (
    ('static_precompiler.compilers.Stylus', {"executable": "/usr/bin/stylus"),
)

Usage with forms media

If you want to use static_precompiler in form media definitions, you can use the following approach:

from django import forms
from static_precompiler.utils import compile_static

class MyForm(forms.Form):

    @property
    def media(self):
        return forms.Media(
            css={"all": (
                compile_static("styles/myform.scss"),
            )},
            js=(
                compile_static("scripts/myform.coffee"),
            )
        )

compilestatic management command

Django Static Precompiler includes a management command compilestatic. If will scan your static files for source files and compile all of them.

You can use this command in conjunction with STATIC_PRECOMPILER_DISABLE_AUTO_COMPILE setting if you use custom STATICFILES_STORAGE such as S3 or some CDN. In that case you can should run compilestatic every time when your source files change and then run collectstatic.

You can run compilestatic in watch mode (--watch option). In watch mode it will monitor the changes in your source files and re-compile them on the fly. It can be handy if you use tools such as LiveReload.

You should install Watchdog to use watch mode.

Troubleshooting

If you get [Errno 2] No such file or directory make sure that you have the required compiler installed. For all compilers you can specify the path to executable file using the executable option, see examples above.

If you run migrate and get ImportError: cannot import name migrations then most likely you use Django < 1.7 and South < 1.0. You should either upgrade to Django 1.7+ or use South 1.0.

Changes

1.0

• Add compile template filter

• Deprecate {% compile %} template tag

• The following compiler specific template tags are REMOVED:

  • {% coffeescript %}

  • {% inlinecoffeescript %}

  • {% sass %}

  • {% inlinesass %}

  • {% scss %}

  • {% inlinescss %}

  • {% less %}

  • {% inlineless %}

• Add Stylus compiler

0.9

• Compiler options are specified with STATIC_PRECOMPILER_COMPILERS setting.

• The following settings are DEPRECATED:

  • COFFEESCRIPT_EXECUTABLE

  • SCSS_EXECUTABLE

  • SCSS_USE_COMPASS

  • LESS_EXECUTABLE

• -C (--no-cache) flag is removed from SASS/SCSS compilers

• Add STATIC_PRECOMPILER_LIST_FILES setting

• Add Babel compiler

0.8

• Add {% inlinecompile %} template tag

• The following compiler specific template tags are DEPRECATED:

  • {% coffeescript %}

  • {% inlinecoffeescript %}

  • {% sass %}

  • {% inlinesass %}

  • {% scss %}

  • {% inlinescss %}

  • {% less %}

  • {% inlineless %}

• Use Django 1.7 migrations

• BUGFIX: fix sass imports from scss and vice versa

• BUGFIX: make sure that compilestatic works if watchdog isn’t installed.

• BUGFIX: fix compilation error when dependency file was removed or renamed

0.7

• Add compilestatic management command (replaces static_precompiler_watch)

• Add STATIC_PRECOMPILER_DISABLE_AUTO_COMPILE to settings

• Add STATIC_PRECOMPILER_CACHE_NAME to settings

• Bugfixes

0.6

• Add STATIC_PRECOMPILER_PREPEND_STATIC_URL to settings

• Add {% compile %} template tag

0.5.3

• Update the parsing of @import statements. Fix the bug with URLs containing commas.

0.5.2

• static_precompiler_watch: watch for changes in all directories handled by static finders, not only STATIC_ROOT

• static_precompiler_watch: add --no-initial-scan option

0.5.1

• Fix SCSS compilation error when importing Compass styles

0.5

• Add Python 3 support

0.4

• Add compile_static and compile_static_lazy utility functions.

0.3

• Bug fixes

• Add Windows compatibility

0.2

• Reduce the max length of varchar fields in Dependency model to meet MySQL limitations

• static_precompiler_watch: don’t fall with exception on compilation errors or if source file is not found

0.1

• Initial release