refactor: extract parseNpmAlias to app/utils/npm/alias.ts

Author: thegreatalxx

app/components/Package/Dependencies.vue

@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { SEVERITY_TEXT_COLORS, getHighestSeverity } from '#shared/utils/severity'
 import { getOutdatedTooltip, getVersionClass } from '~/utils/npm/outdated-dependencies'
+import { parseNpmAlias } from '~/utils/npm/alias'
 
 const { t } = useI18n()
 
@@ -91,18 +92,6 @@ function getDepVersionClass(dep: string) {
 
 const numberFormatter = useNumberFormatter()
 
-/**
- * Parses npm alias syntax: "npm:real-pkg@^1.0.0"
- * Returns { name, range } for the real package, or null if not an alias.
- */
-function parseNpmAlias(version: string): { name: string; range: string } | null {
-  if (!version.startsWith('npm:')) return null
-  const spec = version.slice(4) // strip 'npm:'
-  // Handle scoped packages like @scope/pkg@1.0.0 — find @ after position 0
-  const atIdx = spec.startsWith('@') ? spec.indexOf('@', 1) : spec.indexOf('@')
-  if (atIdx === -1) return { name: spec, range: '' }
-  return { name: spec.slice(0, atIdx), range: spec.slice(atIdx + 1) }
-}
 </script>
 
 <template>

app/utils/npm/alias.ts

@@ -0,0 +1,18 @@
+/**
+ * Parses npm alias syntax: "npm:real-pkg@^1.0.0"
+ * Returns { name, range } for the real package, or null if not an alias.
+ *
+ * @example
+ * parseNpmAlias('npm:real-pkg@^1.0.0') // { name: 'real-pkg', range: '^1.0.0' }
+ * parseNpmAlias('npm:@scope/pkg@^1.0.0') // { name: '@scope/pkg', range: '^1.0.0' }
+ * parseNpmAlias('npm:real-pkg') // { name: 'real-pkg', range: '' }
+ * parseNpmAlias('^1.0.0') // null
+ */
+export function parseNpmAlias(version: string): { name: string; range: string } | null {
+  if (!version.startsWith('npm:')) return null
+  const spec = version.slice(4) // strip 'npm:'
+  // Handle scoped packages like @scope/pkg@1.0.0 — find @ after position 0
+  const atIdx = spec.startsWith('@') ? spec.indexOf('@', 1) : spec.indexOf('@')
+  if (atIdx === -1) return { name: spec, range: '' }
+  return { name: spec.slice(0, atIdx), range: spec.slice(atIdx + 1) }
+}