We can load the VERSION info with this:

    try:
        version_info = loader.get_template('VERSION.txt').render()
    except TemplateDoesNotExist:
        version_info = None

I considered loading the version info in default_settings but this isn't going to work since the template loader must be configured.

Things that cached by version:

• [Done] JS (base.html)
• [Done] CSS (base.html)
• [Done] Riot tags (riot_tags.html)
• [Done] main.js (reference to app.js)
• [Done] app.js (reference to templates)

I considered processing the main.js file to include the version information but this has some difficulties in that a temporary directory for the JS is not created since the files are processed from the src directory.

I could rename main.js though to something like main_2.0.js and then load the JS path via a variable. Thing is, the main.js doesn't need to be

Options¶

Use date-time in JS¶

Pros:

• No build script updates required

Cons:

• JS files are never cached by the client

Put JS files under a directory with the version info¶

Pros:

• Caching is done by version

Cons:

• Build script changes required that are non-trivial

Put JS files under a directory with the version info¶

Pros:

• Browser caching is done by version

Cons:

• Build script changes required that are non-trivial

Use JS version loaded from a chunk of JS code which specifies the version¶

Pros:

• Simple build scripting

Cons:

• Wouldn't work on async code easily

Have script introspect its own path for the version info¶

Pros:

• Simple build scripting

Cons:

• Unintuitive and questionably reliable (see https://stackoverflow.com/questions/710957/how-might-i-get-the-script-filename-from-within-that-script)

Use global app version variable¶

Pros:

• Simple build scripting

Cons:

• Requires setting a global variable