v2 (#50)

Co-authored-by: CrazyMax <crazy-max@users.noreply.github.com>

src/flavor.ts

@@ -0,0 +1,42 @@
+export interface Flavor {
+  latest: string;
+  prefix: string;
+  suffix: string;
+}
+
+export function Transform(inputs: string[]): Flavor {
+  const flavor: Flavor = {
+    latest: 'auto',
+    prefix: '',
+    suffix: ''
+  };
+
+  for (const input of inputs) {
+    const parts = input.split('=', 2);
+    if (parts.length == 1) {
+      throw new Error(`Invalid entry: ${input}`);
+    }
+    switch (parts[0]) {
+      case 'latest': {
+        flavor.latest = parts[1];
+        if (!['auto', 'true', 'false'].includes(flavor.latest)) {
+          throw new Error(`Invalid latest flavor entry: ${input}`);
+        }
+        break;
+      }
+      case 'prefix': {
+        flavor.prefix = parts[1];
+        break;
+      }
+      case 'suffix': {
+        flavor.suffix = parts[1];
+        break;
+      }
+      default: {
+        throw new Error(`Unknown entry: ${input}`);
+      }
+    }
+  }
+
+  return flavor;
+}