From 4e72309747fc78de5d34c334505beffc246a6ec8 Mon Sep 17 00:00:00 2001
From: Ayush Pahwa <ayush@appsmith.com>
Date: Sat, 9 Dec 2023 15:34:08 +0700
Subject: [PATCH] chore: rts workflow APIs code split (#29474)

---
 app/client/packages/rts/.eslintrc.json |  2 +-
 app/client/packages/rts/build.js       | 91 ++++++++++++++++++++++++++
 app/client/packages/rts/build.sh       |  9 +--
 app/client/packages/rts/tsconfig.json  |  3 +-
 4 files changed, 95 insertions(+), 10 deletions(-)
 create mode 100644 app/client/packages/rts/build.js

diff --git a/app/client/packages/rts/.eslintrc.json b/app/client/packages/rts/.eslintrc.json
index 7b67d9a837..ae2b4225f8 100644
--- a/app/client/packages/rts/.eslintrc.json
+++ b/app/client/packages/rts/.eslintrc.json
@@ -1,6 +1,6 @@
 {
   "extends": ["../../.eslintrc.base.json"],
-  "ignorePatterns": ["dist", "server.test.ts"],
+  "ignorePatterns": ["dist", "server.test.ts", "build.js"],
   "rules": {
     "@typescript-eslint/prefer-nullish-coalescing": "off",
     "@typescript-eslint/strict-boolean-expressions": "off",
diff --git a/app/client/packages/rts/build.js b/app/client/packages/rts/build.js
new file mode 100644
index 0000000000..e645a0f7ff
--- /dev/null
+++ b/app/client/packages/rts/build.js
@@ -0,0 +1,91 @@
+const { dependencies: packageDeps } = require("./package.json");
+const esbuild = require("esbuild");
+const fs = require("fs").promises;
+
+// List of external workflow packages (EE only)
+const externalWorkflowPackages = [];
+
+async function ensureDirectoryExistence(dirname) {
+  try {
+    await fs.mkdir(dirname, { recursive: true });
+  } catch (err) {
+    if (err.code !== "EEXIST") {
+      throw err;
+    }
+  }
+}
+
+async function createFile(dir, filename, content) {
+  try {
+    await ensureDirectoryExistence(dir);
+    const filePath = `${dir}/${filename}`;
+    await fs.writeFile(filePath, content);
+  } catch (err) {
+    console.error("Error writing file:", err);
+  }
+}
+
+/**
+ * Get dependencies for workflow packages
+ * @returns {Object} workflow dependencies
+ */
+const getWorkflowDependencies = () => {
+  if (externalWorkflowPackages.length === 0) {
+    return {};
+  }
+  return Object.entries(packageDeps).reduce((acc, [key, value]) => {
+    if (externalWorkflowPackages.includes(key)) {
+      acc[key] = value;
+    }
+    return acc;
+  }, {});
+};
+
+const bundle = async () => {
+  return esbuild
+    .build({
+      entryPoints: ["src/server.ts"],
+      bundle: true,
+      sourcemap: true,
+      platform: "node",
+      external: [...externalWorkflowPackages, "dtrace-provider"],
+      loader: {
+        ".ts": "ts",
+      },
+      tsconfig: "tsconfig.json",
+      outdir: "dist/bundle",
+      target: "node" + process.versions.node,
+      minify: true,
+      keepNames: true,
+    })
+    .catch(() => process.exit(1));
+};
+
+(async () => {
+  if (externalWorkflowPackages.length > 0) {
+    // Create package.json for bundle, this is needed to install workflow dependencies
+    // in the bundle directory. This is needed for EE only. This is done to support the
+    // packages for our workflow provider which requires dynamic imports. ESBuild does
+    // not support dynamic imports for external packages hence we need to bundle them
+    // together with the workflow provider.
+    const bundlePackagejson = {
+      name: "rts-bundle",
+      version: "1.0.0",
+      description: "",
+      main: "bundle/server.js",
+      dependencies: getWorkflowDependencies(),
+    };
+
+    createFile(
+      "dist",
+      "package.json",
+      JSON.stringify(bundlePackagejson, null, 2),
+    );
+
+    console.log("Bundle package.json created successfully");
+  }
+
+  await bundle();
+
+  console.log("Bundle created successfully");
+})();
diff --git a/app/client/packages/rts/build.sh b/app/client/packages/rts/build.sh
index b6e64d1f01..eaeb772151 100755
--- a/app/client/packages/rts/build.sh
+++ b/app/client/packages/rts/build.sh
@@ -8,11 +8,4 @@ yarn install --immutable
 yarn run tsc --noEmit
 
 rm -rf dist
-yarn run esbuild src/server.ts \
-  --bundle \
-  --minify \
-  --sourcemap \
-  --platform=node \
-  --target="$(node --version | sed s/v/node/)" \
-  --outdir=dist/bundle \
-  --external:dtrace-provider
+node build.js
\ No newline at end of file
diff --git a/app/client/packages/rts/tsconfig.json b/app/client/packages/rts/tsconfig.json
index 3db9eb4c56..1cfed8ff86 100644
--- a/app/client/packages/rts/tsconfig.json
+++ b/app/client/packages/rts/tsconfig.json
@@ -19,6 +19,7 @@
       "@utils/*": ["./src/utils/*"]
     }
   },
-  "exclude": ["jest.config.js", "src/test"],
+  "include": ["src/**/*", "src/**/*.json"],
+  "exclude": ["jest.config.js", "src/test", "index.js", "build.js"],
   "lib": ["es2015"]
 }