Source maps support #61
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frenzzy
commented
Jun 22, 2018
| const processOptions = Object.assign( | ||
| { from: assetName, to: assetName }, | ||
| this.options.cssProcessorOptions || {} | ||
| this.options.cssProcessorOptions |
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From MDN:
Note that Object.assign() does not throw on
nullorundefinedsource values.
frenzzy
commented
Jun 22, 2018
|
|
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| processCss(assetName, asset, assets) { | ||
| const css = asset.source(); | ||
| const css = asset.sourceAndMap ? asset.sourceAndMap() : { source: asset.source() }; |
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UglifyJS Webpack Plugin also uses sourceAndMap function if exists
frenzzy
commented
Jun 22, 2018
| (map.mappings && map.mappings.length > 0) | ||
| ) | ||
| ) { | ||
| processOptions.map = Object.assign({ prev: map }, processOptions.map); |
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From PostCSS docs:
prevstring, object, boolean or function: source map content from a previous processing step (for example, Sass compilation). PostCSS will try to read the previous source map automatically (based on comments within the source CSS), but you can use this option to identify it manually. If desired, you can omit the previous map withprev: false.
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|
Thx for the help |
jasononeil
added a commit
to cultureamp/optimize-css-assets-webpack-plugin
that referenced
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Jun 29, 2018
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Fixes #53