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102 lines
3.0 KiB
Markdown
102 lines
3.0 KiB
Markdown
# Glyphance
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This is a CLI utility that help reduce load times and bytes by splitting typography files into smaller chunks for different alphabets automatically _without the tears_.
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## 🌈 Features
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- Configurable.
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- Config driven.
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- Docker image, no install required.
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## 🚀 Quickstart
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Lets assume we want to use 2 variable fonts, one of which has an italic version still as a separate file. Also on our webserver we serve our static fonts from `/fonts/`.
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1. Get the font files
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2. Write a little config file `glyphance.yaml` and define the font-families (`Mulish` and `FireCode` e.g.) and their files or variations.
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3. Run it.
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4. Use the generate font files and CSS.
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```
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example/
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├── FiraCode-VariableFont_wght.ttf
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├── Mulish-Italic-VariableFont_wght.ttf
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├── Mulish-VariableFont_wght.ttf
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└── glyphance.yaml
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```
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```yaml
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# glyphance.yaml
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fonts:
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'Mulish':
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- file: Mulish-VariableFont_wght.ttf
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variable: true
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css:
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font-weight: 200 1000
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- file: Mulish-Italic-VariableFont_wght.ttf
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variable: true
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css:
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font-weight: 200 1000
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font-style: italic
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'FireCode':
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- file: FiraCode-VariableFont_wght.ttf
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variable: true
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css:
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font-weight: 300 700
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output:
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prefix: /fonts/
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```
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### Run
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```bash
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docker run -v $(pwd)/example:/data glyphance
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```
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### Enjoy
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Now you can use the generated font files and the `generated/fonts.css`.
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```
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example/
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├── FiraCode-VariableFont_wght.ttf
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├── Mulish-Italic-VariableFont_wght.ttf
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├── Mulish-VariableFont_wght.ttf
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├── generated
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│ ├── 08284d4f696ab68dc7aa21c9c061c534939a3a0c.woff2
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│ ├── ...
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│ ├── ...
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│ ├── f8d95e7f048e130c09015a20689693461cc0dedb.woff2
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│ └── fonts.css
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└── glyphance.yaml
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```
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## 💡 Inspiration
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The idea came mostly at how google fonts subsets their typefaces on [Google Fonts](https://fonts.google.com).
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They split the fonts into multiple blocks of unicode chars, and leverage the [`unicode-range`](https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/unicode-range) property of `@font-face` to only deliver the parts of a font that are needed for a website, drastically reducing bytes sent over the wire.
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Under the hood it uses the amazing [fonttools](https://github.com/fonttools/fonttools) to do the heavy lifting.
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## 📖 API & Documentation
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> Config file reference can be found under [docs/config](./docs/config/).
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### Example
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```yaml
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fonts:
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'My Font Familiy':
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- file: ./path/relative/to/config/file.ttf|otf|...
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variable: true # Whether ist's a variable font or not, defaults to false
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css:
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font-style: italic # Custom css properties to be added to the css
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output:
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dir: foo # Directory of the output
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prefix: /static/fonts # Prefix to be added to the src URL in the CSS
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clean: true # Whether to clean to output directory first
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css:
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font-weight: 400 # CSS to added to each @font-face. By defaults includes swap, normal weight and style
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```
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