feat(plugins): add duplicate plugin functionality and related API endpoints

- Implemented a new `duplicatePlugin` function to allow copying of installed plugins with a new ID.
- Added API endpoint for duplicating plugins, including error handling for various edge cases.
- Introduced frontend hooks and UI components for duplicating plugins in the script management interface.
- Enhanced tests to validate the duplication process and ensure proper error handling.

packages/server/plugin-store.js

@@ -380,6 +380,96 @@ export function forkCoreScript(coreName, newId, opts = {}) {
   }
 }
 
+/**
+ * Copy an installed plugin to a new plugin id.
+ *
+ * @param {string} sourceId
+ * @param {string} newId
+ * @param {{ description?: string }} [opts]
+ */
+export function duplicatePlugin(sourceId, newId, opts = {}) {
+  const fromId = assertPluginId(sourceId);
+  const id = assertPluginId(newId);
+  if (id === fromId) {
+    const err = new Error("cannot duplicate onto itself");
+    err.statusCode = 400;
+    throw err;
+  }
+  if (coreBareNames().has(id)) {
+    const err = new Error(`plugin id collides with core script: ${id}`);
+    err.statusCode = 409;
+    throw err;
+  }
+  if (fs.existsSync(pluginDir(id))) {
+    const err = new Error(`plugin already exists: ${id}`);
+    err.statusCode = 409;
+    throw err;
+  }
+
+  const source = getInstalledPlugin(fromId);
+  if (!source) {
+    const err = new Error(`plugin not found: ${fromId}`);
+    err.statusCode = 404;
+    throw err;
+  }
+  if (!source.manifest) {
+    const err = new Error(
+      source.compatError || `plugin has no valid manifest: ${fromId}`,
+    );
+    err.statusCode = 400;
+    throw err;
+  }
+
+  const staging = path.join(PLUGINS_DIR, `.staging-dup-${id}-${Date.now()}`);
+  fs.mkdirSync(staging, { recursive: true });
+  try {
+    fs.cpSync(source.dir, staging, {
+      recursive: true,
+      filter: (src) => {
+        const base = path.basename(src);
+        return base !== "node_modules" && base !== ".disabled";
+      },
+    });
+
+    const manifest = buildManifest({
+      id,
+      name: id,
+      version: source.manifest.version,
+      jerapah: source.manifest.jerapah,
+      main: source.manifest.main,
+      description:
+        opts.description ?? source.manifest.description ?? null,
+    });
+    fs.writeFileSync(
+      path.join(staging, PLUGIN_MANIFEST),
+      `${JSON.stringify(manifest, null, 2)}\n`,
+      "utf8",
+    );
+
+    const pkgPath = path.join(staging, "package.json");
+    if (fs.existsSync(pkgPath)) {
+      let pkg = {};
+      try {
+        pkg = JSON.parse(fs.readFileSync(pkgPath, "utf8"));
+      } catch {
+        pkg = {};
+      }
+      if (pkg == null || typeof pkg !== "object" || Array.isArray(pkg)) {
+        pkg = {};
+      }
+      pkg.name = `jflow-plugin-${id}`;
+      fs.writeFileSync(pkgPath, `${JSON.stringify(pkg, null, 2)}\n`, "utf8");
+    }
+
+    return installPluginFromDirectory(staging, {
+      overwrite: false,
+      reason: `plugin:${id} duplicated from ${fromId}`,
+    });
+  } finally {
+    fs.rmSync(staging, { recursive: true, force: true });
+  }
+}
+
 /**
  * @param {string} pluginDirectory
  * @returns {((id: string) => unknown) | null}

packages/server/scripts/ntfy.js

@@ -15,6 +15,10 @@ function ntfyHeaders(ctx) {
     headers.Title = ctx.data.title;
   }
 
+  if (ctx.config?.markdown === true) {
+    headers.md = "true";
+  }
+
   return headers;
 }
 
@@ -149,6 +153,11 @@ ntfy.meta = {
       default: "https://ntfy.sh/jerapah-flow",
       description: "ntfy topic URL",
     },
+    markdown: {
+      type: "boolean",
+      default: false,
+      description: "Send as Markdown (ntfy md header)",
+    },
     fingerprint: {
       type: "string",
       required: false,

packages/server/src/api/scripts.js

@@ -8,6 +8,7 @@ import {
 import * as fsStore from "../../fs-store.js";
 import {
   forkCoreScript,
+  duplicatePlugin,
   listCoreScriptNames,
   listInstalledPlugins,
   resolveScriptRef,
@@ -29,7 +30,7 @@ import { normalizeStepResult } from "../../step-result.js";
 import { resolveConfigRefs } from "../../config-refs.js";
 import { getAppVersion } from "../../app-version.js";
 import { EXAMPLE_PLUGINS_DIR } from "../../paths.js";
-import { pluginScriptRef } from "../../plugin-manifest.js";
+import { parsePluginScriptRef, pluginScriptRef } from "../../plugin-manifest.js";
 import { evaluateJsonata, SET_STEP_SCRIPT } from "../../workflow-parse.js";
 import { DEFAULT_OWNER } from "@jerapah-flow/shared";
 
@@ -251,6 +252,40 @@ export default function scriptsPluginFactory(registry) {
       }
     });
 
+    fastify.post("/scripts/:name/duplicate", async (req, reply) => {
+      const rawName = decodeURIComponent(
+        /** @type {{ name: string }} */ (req.params).name,
+      );
+      const body = /** @type {{ id?: string, description?: string }} */ (
+        req.body ?? {}
+      );
+      if (typeof body.id !== "string" || !body.id.trim()) {
+        return reply.code(400).send({ error: "id is required" });
+      }
+      const parsed = parsePluginScriptRef(rawName);
+      if (!parsed) {
+        return reply
+          .code(400)
+          .send({ error: "name must be a plugin ref (plugin/<id>)" });
+      }
+      try {
+        const installed = duplicatePlugin(parsed.id, body.id.trim(), {
+          description: body.description,
+        });
+        clearScriptCache();
+        return reply.code(201).send({
+          ...installed,
+          restartNeeded: true,
+          warning:
+            "Plugins run as the JerapahFlow process user. Review code before install.",
+        });
+      } catch (err) {
+        return reply
+          .code(/** @type {any} */ (err).statusCode ?? 500)
+          .send({ error: err instanceof Error ? err.message : String(err) });
+      }
+    });
+
     fastify.post("/scripts/:name/dry-run", async (req, reply) => {
       const rawName = decodeURIComponent(
         /** @type {{ name: string }} */ (req.params).name,

packages/server/test/plugins-smoke.js

@@ -13,6 +13,7 @@ import { migrate, db } from "../db.js";
 import { getAppVersion, satisfiesRange } from "../app-version.js";
 import {
   forkCoreScript,
+  duplicatePlugin,
   resolveScriptRef,
   uninstallPlugin,
   listInstalledPlugins,
@@ -83,6 +84,26 @@ async function main() {
   );
   assert.equal(blankRun.output.ok, true);
 
+  const duplicated = duplicatePlugin("blank-smoke", "blank-smoke-copy");
+  assert.equal(duplicated.scriptRef, "plugin/blank-smoke-copy");
+  clearScriptCache();
+  assert.equal(resolveScriptRef("plugin/blank-smoke-copy").kind, "plugin");
+  const dupRun = await runScript(
+    "plugin/blank-smoke-copy",
+    { data: 1, context: {}, config: null },
+    { log: silent, workflowName: "smoke", owner: "default" },
+  );
+  assert.equal(dupRun.output.ok, true);
+
+  let hitDupSelf = false;
+  try {
+    duplicatePlugin("blank-smoke", "blank-smoke");
+  } catch (err) {
+    hitDupSelf = true;
+    assert.match(String(err.message), /itself/);
+  }
+  assert.equal(hitDupSelf, true);
+
   let hit = false;
   try {
     forkCoreScript("ntfy.js", "ntfy");
@@ -102,6 +123,7 @@ async function main() {
 
   uninstallPlugin("jsonata-smoke-fork");
   uninstallPlugin("blank-smoke");
+  uninstallPlugin("blank-smoke-copy");
   uninstallPlugin("get-current-time");
 
   console.log("plugins-smoke: ok");