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Jul 18, 2025
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Explain propshaft and sourcemaps integration #69

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7 changes: 7 additions & 0 deletions README.md
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Expand Up @@ -53,6 +53,13 @@ By default, sass is invoked with `["--style=compressed", "--no-source-map"]`. Yo
Rails.application.config.dartsass.build_options << "--no-charset" << "--quiet-deps"
```

### Configuring sourcemaps
If you're using this gem with [propshaft](https://github.com/rails/propshaft) and you want to use sourcemaps you need to replace build option `--no-source-map` with `--embed-sources`.

```ruby
Rails.application.config.dartsass.build_options = ['--no-charset', '--embed-sources']
```

## Importing assets from gems
`dartsass:build` includes application [assets paths](https://guides.rubyonrails.org/asset_pipeline.html#search-paths) as Sass [load paths](https://sass-lang.com/documentation/at-rules/use#load-paths). Assuming the gem has made assets visible to the Rails application, no additional configuration is required to use them.

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