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37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
# Datasources
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Datasources are used in Renovate primarily to fetch released versions of packages.
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## Follow the class-based programming style
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New datasources _must_ follow the class-based programming style.
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Use the `adoptium-java` datasource as a reference.
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## getReleases
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The minimum exported interface for a datasource is a function called `getReleases` that takes a lookup config as input.
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The config contains:
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- `lookupName`: the package's full name including scope if present (e.g. `@foo/bar`)
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- `registryUrls`: an array of registry Urls to try
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`getReleases` should return an object containing:
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- `releases`: an array of strings of matched versions. This is the only mandatory field.
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- `deprecationMessage`: a string description of the package's deprecation notice, if applicable
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- `sourceUrl`: a HTTP URL pointing to the source code (e.g. on GitHub)
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- `homepage`: a HTTP URL for the package's homepage. Ideally should be empty if the homepage and sourceUrl are the same
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- `changelogUrl`: a URL pointing to the package's Changelog (could be a Markdown file, for example). If not present then Renovate will search the `sourceUrl` for a changelog file.
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- `tags`: an object mapping tag -> version, e.g. `tags: { latest: '3.0.0' }`. This is only used by the `followTags` function.
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## getDigest
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Datasources that support the concept of digests (e.g. Docker digests and Git commit hashes) also can export a `getDigest` function.
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The `getDigest` function has two inputs:
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- `config`: the Renovate config for the package being updated, contains same fields as `getReleases`
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- `newValue`: the version or value to retrieve the digest for
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The `getDigest` function returns a string output representing the digest value. If none is found then a return value of `null` should be returned.
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