Setting default_language takes no effect

[longfangsong]

Bug Report

Environment

Zola version:
v0.14.1 (also apply to current next branch)

Expected Behavior

(In fact I'm a little confused about what's the expected behaviour for zola here. I read the doc and some similiar issues like #1512 but still cannot figure it out.)

I suppose setting default_language in config.toml will make __tera_context.config.title to be [languages.<default_language>.title].

Current Behavior

It seems zola always prefer translations under en.

Step to reproduce

In my templates/index.html:

<h1>{{ config.title }}</h1>

In config.toml:

# ...
title = "title"
default_language = "fr"
[translations]
title = "translations.title"

[languages.fr]
title = "languages.fr.title"
[languages.fr.translations]
home = "languages.fr.translations.home"

[languages.en]
title = "languages.en.title"
[languages.en.translations]
home = "languages.fr.translations.home"

All other files are untouched after zola init.

Serve with zola serve, the result is languages.en.title.

Some behaviour in other situations:

• When all translation and languages stuff removed, ie.

  # ...
  # add or remove `default_language` makes no difference
  # default_language = "fr"
  title = "title"

  Then the result is nothing (__tera_context.config.title is null), is it a regression bug Incorrect values in __tera_context #1512 ?
• When we have [languages.en], ie.

  # ...
  # add or remove `default_language` still makes no difference
  # default_language = "fr"
  [languages.en]
  title = "languages.en.title"
  [languages.en.translations]
  home = "languages.fr.translations.home"

  Then the result is always languages.en.title, no matter what value default_language is or other languages configuations added.

[Keats]

The rendering should be language aware. Eg if you're rendering a en page, it will give you the en title. If you are rendering a fr page, it will give the fr title.

[longfangsong]

The rendering should be language aware. Eg if you're rendering a en page, it will give you the en title. If you are rendering a fr page, it will give the fr title.

I got this, but what about default_language?

I suppose if I render with default_language='fr', I should get.

./public
├── en
│   └── index.html # content should be languages.en.title
├── index.html # content should be languages.fr.title
...
└── sitemap.xml

But in fact I got:

./public
├── fr
│   └── index.html # content is languages.fr.title
├── index.html # content is languages.en.title
...
└── sitemap.xml

[Keats]

Can you push a very basic repo so I can have a look?

[longfangsong]

Can you push a very basic repo so I can have a look?

https://github.com/longfangsong/zola-lab.git

[longfangsong]

Same problem as #1634