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joplin/packages/plugin-repo-cli/lib/checkIfPluginCanBeAdded.ts

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function caseInsensitiveFindManifest(manifests: any, manifestId: string): any {
for (const id of Object.keys(manifests)) {
if (id.toLowerCase() === manifestId.toLowerCase()) return manifests[id];
}
return null;
}
export default function(existingManifests: any, manifest: any) {
// If there's already a plugin with this ID published under a different
// package name, we skip it. Otherwise it would allow anyone to overwrite
// someone else plugin just by using the same ID. So the first plugin with
// this ID that was originally added is kept.
//
// We need case insensitive match because the filesystem might be case
// insensitive too.
const originalManifest = caseInsensitiveFindManifest(existingManifests, manifest.id);
if (originalManifest && originalManifest._npm_package_name !== manifest._npm_package_name) {
throw new Error(`Plugin "${manifest.id}" from npm package "${manifest._npm_package_name}" has already been published under npm package "${originalManifest._npm_package_name}". Plugin from package "${originalManifest._npm_package_name}" will not be imported.`);
}
// Don't add a plugin if there is already a plugin with the same ID but
// different casing.
if (originalManifest && originalManifest.id !== manifest.id) {
throw new Error(`Plugin "${manifest.id}" cannot be published because there is already a plugin with ID "${originalManifest.id}". A new package, under a different name, should be published if the plugin ID needs to change.`);
}
}