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Enable filtering by file extensions #2

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9 changes: 9 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ You can use this plugin to copy files in your Gatsby project. Specify absolute `
|`source` |Absolute path of the source (eg: `${__dirname}/path`)|
|`destination`|Relative path to destination within `public/` direcotry </br> You can add `/*/` inside destination path to wildcard destination lookup </br> *Refer to [graphical explanation](#graphical-explanation) for better understanding*
|`purge` |Overwrite destination. `false` by default|
|`extensions` |Filter files to copy from their extension `null` by default, Provide an array if you wish to filter extensions (eg: `['png', 'jpg']`)|

#### Important
This plugin should be used with `gatsby-source-filesystem`
Expand All @@ -36,6 +37,14 @@ This plugin should be used with `gatsby-source-filesystem`
destination: '/containers/*/images',
purge: false,
}
}, {
resolve: 'gatsby-plugin-copy-files-enhanced',
options: {
source: `${__dirname}/src/content` ,
destination: '/images',
purge: true,
extensions: ['png', 'jpg'],
}
}
```

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5 changes: 4 additions & 1 deletion gatsby-node.js
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Expand Up @@ -9,11 +9,14 @@ const getDirectories = source =>
const regex1 = RegExp('(.*)\\/\\*(.*)');

exports.onCreateNode = ({ node }, pluginOptions) => {
const { source, destination = '', purge = false } = pluginOptions;
const { source, destination = '', purge = false, extensions = null } = pluginOptions;
const sourceNormalized = path.normalize(source);
if (node.internal.type === 'File') {
const dir = path.normalize(node.dir);
if (dir.includes(sourceNormalized)) {
// if extensions are specified, do not copy this file if the extension is not in the provided list
if (extensions && !extensions.includes(node.extension)) return;

const relativeToDest = dir.replace(sourceNormalized, '');

// if regex enabled
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