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node_modules/@vue/cli-shared-utils/lib/pluginResolution.js

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+const pluginRE = /^(@vue\/|vue-|@[\w-]+(\.)?[\w-]+\/vue-)cli-plugin-/
+const scopeRE = /^@[\w-]+(\.)?[\w-]+\//
+const officialRE = /^@vue\//
+
+const officialPlugins = [
+  'babel',
+  'e2e-cypress',
+  'e2e-nightwatch',
+  'e2e-webdriverio',
+  'eslint',
+  'pwa',
+  'router',
+  'typescript',
+  'unit-jest',
+  'unit-mocha',
+  'vuex',
+  'webpack-4'
+]
+
+exports.isPlugin = id => pluginRE.test(id)
+
+exports.isOfficialPlugin = id => exports.isPlugin(id) && officialRE.test(id)
+
+exports.toShortPluginId = id => id.replace(pluginRE, '')
+
+exports.resolvePluginId = id => {
+  // already full id
+  // e.g. vue-cli-plugin-foo, @vue/cli-plugin-foo, @bar/vue-cli-plugin-foo
+  if (pluginRE.test(id)) {
+    return id
+  }
+
+  if (id === '@vue/cli-service') {
+    return id
+  }
+
+  if (officialPlugins.includes(id)) {
+    return `@vue/cli-plugin-${id}`
+  }
+  // scoped short
+  // e.g. @vue/foo, @bar/foo
+  if (id.charAt(0) === '@') {
+    const scopeMatch = id.match(scopeRE)
+    if (scopeMatch) {
+      const scope = scopeMatch[0]
+      const shortId = id.replace(scopeRE, '')
+      return `${scope}${scope === '@vue/' ? `` : `vue-`}cli-plugin-${shortId}`
+    }
+  }
+  // default short
+  // e.g. foo
+  return `vue-cli-plugin-${id}`
+}
+
+exports.matchesPluginId = (input, full) => {
+  const short = full.replace(pluginRE, '')
+  return (
+    // input is full
+    full === input ||
+    // input is short without scope
+    short === input ||
+    // input is short with scope
+    short === input.replace(scopeRE, '')
+  )
+}
+
+exports.getPluginLink = id => {
+  if (officialRE.test(id)) {
+    return `https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-${
+      exports.toShortPluginId(id)
+    }`
+  }
+  let pkg = {}
+  try {
+    pkg = require(`${id}/package.json`)
+  } catch (e) {}
+  return (
+    pkg.homepage ||
+    (pkg.repository && pkg.repository.url) ||
+    `https://www.npmjs.com/package/${id.replace(`/`, `%2F`)}`
+  )
+}