feat: better error when package is not found

When a package is not found during installation, show which package is
requiring it (if any) in the error message. If there is no parent request,
throw the same error as before.
Add new localized string 'requiredPackageNotFoundRegistry' which is the
same 'packageNotFoundRegistry', but includes the parent package pattern.

Author: GAumala

src/package-request.js

@@ -111,7 +111,18 @@ export default class PackageRequest {
 
     const Resolver = this.getRegistryResolver();
     const resolver = new Resolver(this, name, range);
-    return resolver.resolve();
+    try {
+      return await resolver.resolve();
+    } catch (err) {
+      // if it is not an error thrown by yarn and it has a parent request,
+      // thow a more readable error
+      if (!(err instanceof MessageError) && this.parentRequest && this.parentRequest.pattern) {
+        throw new MessageError(
+          this.reporter.lang('requiredPackageNotFoundRegistry', pattern, this.parentRequest.pattern, this.registry),
+        );
+      }
+      throw err;
+    }
   }
 
   /**

src/reporters/lang/en.js

@@ -80,6 +80,7 @@ const messages = {
   invalidVersion: 'Invalid version supplied.',
   requiredVersionInRange: 'Required version in range.',
   packageNotFoundRegistry: "Couldn't find package $0 on the $1 registry.",
+  requiredPackageNotFoundRegistry: "Couldn't find package $0 required by $1 on the $2 registry.",
   doesntExist: "Package $1 refers to a non-existing file '$0'.",
   missingRequiredPackageKey: `Package $0 doesn't have a $1.`,
   invalidAccess: 'Invalid argument for access, expected public or restricted.',