Keycloak config persistance implemented (to test)

src/bin/start-keycloak/realmConfig/defaultConfig/defaultConfig.ts

@@ -0,0 +1,74 @@
+import { join as pathJoin, dirname as pathDirname } from "path";
+import { getThisCodebaseRootDirPath } from "../../../tools/getThisCodebaseRootDirPath";
+import * as fs from "fs";
+import { exclude } from "tsafe/exclude";
+import { assert } from "tsafe/assert";
+import { type ParsedRealmJson, readRealmJsonFile } from "../ParsedRealmJson";
+
+export function getDefaultRealmJsonFilePath(params: {
+    keycloakMajorVersionNumber: number;
+}) {
+    const { keycloakMajorVersionNumber } = params;
+
+    return pathJoin(
+        getThisCodebaseRootDirPath(),
+        "src",
+        "bin",
+        "start-keycloak",
+        "realmConfig",
+        "defaultConfig",
+        `realm-kc-${keycloakMajorVersionNumber}.json`
+    );
+}
+
+export const { getSupportedKeycloakMajorVersions } = (() => {
+    let cache: number[] | undefined = undefined;
+
+    function getSupportedKeycloakMajorVersions(): number[] {
+        if (cache !== undefined) {
+            return cache;
+        }
+
+        cache = fs
+            .readdirSync(
+                pathDirname(
+                    getDefaultRealmJsonFilePath({ keycloakMajorVersionNumber: 0 })
+                )
+            )
+            .map(fileBasename => {
+                const match = fileBasename.match(/^realm-kc-(\d+)\.json$/);
+
+                if (match === null) {
+                    return undefined;
+                }
+
+                const n = parseInt(match[1]);
+
+                assert(!isNaN(n));
+
+                return n;
+            })
+            .filter(exclude(undefined));
+
+        return cache;
+    }
+
+    return { getSupportedKeycloakMajorVersions };
+})();
+
+export function getDefaultConfig(params: {
+    keycloakMajorVersionNumber: number;
+}): ParsedRealmJson {
+    const { keycloakMajorVersionNumber } = params;
+
+    assert(
+        getSupportedKeycloakMajorVersions().includes(keycloakMajorVersionNumber),
+        `We do not have a default config for Keycloak ${keycloakMajorVersionNumber}`
+    );
+
+    return readRealmJsonFile({
+        realmJsonFilePath: getDefaultRealmJsonFilePath({
+            keycloakMajorVersionNumber
+        })
+    });
+}