Variable fonts: some files or file references are missing

[tremby]

Describe the bug
Some files are missing, or referenced wrongly.

To Reproduce
Steps to reproduce the behavior:

1. Install fontsource-public-sans

2. Import fontsource-public-sans/variable-full.css

3. Build project

4. See error

    ./node_modules/fontsource-public-sans/variable-full.css (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-5-1!./node_modules/next/dist/compiled/postcss-loader/cjs.js??ref--5-oneOf-5-2!./node_modules/fontsource-public-sans/variable-full.css)
    Error: Can't resolve './files/public-sans-latin-variable-full-italic.woff2' in '<...>/node_modules/fontsource-public-sans'
   

Expected behavior
File is found, font loads.

Additional context
The published package has these files containing variable in their name in its files directory:

• public-sans-latin-ext-variable-wghtOnly-italic.woff2
• public-sans-latin-ext-variable-wghtOnly-normal.woff2
• public-sans-latin-variable-wghtOnly-italic.woff2
• public-sans-latin-variable-wghtOnly-normal.woff2

Yet the variable-full.css file is referencing

• ./files/public-sans-latin-variable-full-italic.woff2
• ./files/public-sans-latin-ext-variable-full-italic.woff2
• ./files/public-sans-latin-variable-full-normal.woff2
• ./files/public-sans-latin-ext-variable-full-normal.woff2

This problem appears to exist in other variable fonts too, such as fontsource-work-sans.

[mshuster]

One additional artifact I've found is that obviously invalid filename references are being generated in some cases by some variable font families e.g.

src: url('./files/inter-cyrillic-variable-full-oblique 0deg 10deg.woff2') format('woff2');
https://github.com/fontsource/fontsource/blob/master/packages/inter/variable-full-normal.css#L7

Seems most related to oblique variants.

[ayuhito]

Resolved in #110. There no longer is any 'full' variant generated for fonts that do not need it since they only have a wght and ital axis.