Link to the documentation for implementing non builtin pages

src/bin/eject-page.ts

@@ -92,12 +92,14 @@ export async function command(params: { buildContext: BuildContext }) {
     const templateValue = "Template.tsx (Layout common to every page)";
     const userProfileFormFieldsValue =
         "UserProfileFormFields.tsx (Renders the form of the register.ftl, login-update-profile.ftl, update-email.ftl and idp-review-user-profile.ftl)";
+    const otherPageValue = "The page you're looking for isn't listed here";
 
     const { value: pageIdOrComponent } = await cliSelect<
         | LoginThemePageId
         | AccountThemePageId
         | typeof templateValue
         | typeof userProfileFormFieldsValue
+        | typeof otherPageValue
     >({
         values: (() => {
             switch (themeType) {
@@ -105,10 +107,11 @@ export async function command(params: { buildContext: BuildContext }) {
                     return [
                         templateValue,
                         userProfileFormFieldsValue,
-                        ...LOGIN_THEME_PAGE_IDS
+                        ...LOGIN_THEME_PAGE_IDS,
+                        otherPageValue
                     ];
                 case "account":
-                    return [templateValue, ...ACCOUNT_THEME_PAGE_IDS];
+                    return [templateValue, ...ACCOUNT_THEME_PAGE_IDS, otherPageValue];
             }
             assert<Equals<typeof themeType, never>>(false);
         })()
@@ -116,6 +119,17 @@ export async function command(params: { buildContext: BuildContext }) {
         process.exit(-1);
     });
 
+    if (pageIdOrComponent === otherPageValue) {
+        console.log(
+            [
+                "To style a page not included in the base Keycloak, such as one added by a third-party Keycloak extension,",
+                "refer to the documentation: https://docs.keycloakify.dev/features/styling-a-custom-page-not-included-in-base-keycloak"
+            ].join(" ")
+        );
+
+        process.exit(0);
+    }
+
     console.log(`→ ${pageIdOrComponent}`);
 
     const componentBasename = (() => {