Replace webpack with esbuild, remove gradle

.vscode/launch.json

@@ -1,13 +1,15 @@
-// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+// See: https://go.microsoft.com/fwlink/?linkid=830387
 {
     "version": "0.2.0",
     "configurations": [
         {
             "name": "Extension",
             "type": "extensionHost",
             "request": "launch",
-            "runtimeExecutable": "${execPath}",
-            "args": ["--extensionDevelopmentPath=${workspaceRoot}/build" ]
+            "args": [
+                "--extensionDevelopmentPath=${workspaceRoot}/build"
+            ],
+            "preLaunchTask": "${defaultBuildTask}"
         }
     ]
 }

.vscode/tasks.json

@@ -0,0 +1,18 @@
+// See: https://go.microsoft.com/fwlink/?LinkId=733558
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "npm: compile",
+            "type": "npm",
+            "script": "compile",
+            "presentation": {
+                "reveal": "never"
+            },
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+     ]
+}

.vscodeignore

@@ -1,4 +1,7 @@
-.vscode/**
-.vscode-test/**
-.gitignore
-vsc-extension-quickstart.md
+.vscode
+node_modules
+src/**
+package-lock.json
+tsconfig.json
+esbuild.js
+**/*.map

Makefile

@@ -0,0 +1,13 @@
+all: clean server package
+
+clean:
+	rm -rf build
+
+server:
+	cd language-server ; ./gradlew build
+
+package:
+	npm run package
+
+install: all
+	code --install-extension build/nextflow.vsix

README.md

@@ -4,7 +4,7 @@ VS Code extension for [Nextflow](https://www.nextflow.io/) that provides languag
 
 ![nextflow vscode extension](images/vscode-nextflow.png)
 
-Read the [blog post](https://seqera.io/blog/modernizing-nextflow-developer-experience/) and the [docs](https://nextflow.io/docs/latest/vscode.html) for more information.
+Read the blog posts ([part 1](https://seqera.io/blog/modernizing-nextflow-developer-experience/), [part 2](https://seqera.io/blog/modernizing-nextflow-developer-experience-part-2/)) and the [docs](https://nextflow.io/docs/latest/vscode.html) for more information.
 
 See also:
 
@@ -34,32 +34,30 @@ Clone this repository:
 
 ```bash
 git clone https://github.com/nextflow-io/vscode-language-nextflow
+cd vscode-language-nextflow
 ```
 
-Clone the language server into this repository:
+If you need to edit the language server, clone the repository and build it:
 
 ```bash
-cd vscode-language-nextflow
 git clone https://github.com/nextflow-io/language-server
+make server
 ```
 
-Build the extension:
+Otherwise, you can simply download a language server release into the following subdirectory:
 
 ```bash
-./gradlew build
+mkdir -p language-server/build/libs
+wget -P language-server/build/libs https://github.com/nextflow-io/language-server/releases/download/$VERSION/language-server-all.jar
 ```
 
-From VS Code, you can press `F5` to launch a new VS Code window with the extension loaded.
-
-Alternatively, you can install the extension into your environment (reload required):
-
-```bash
-./gradlew install
-```
+Finally, press `F5` to build the extension and launch a new VS Code window with the extension loaded.
 
 ## Publishing
 
-Update the extension version number in `package.json` and `.vscode/launch.json`, then run the "Deploy Extension" action to publish the extension to the VSCode marketplace and Open VSX.
+1. Update the extension version number in `package.json`.
+2. Update the changelog in `CHANGELOG.md`.
+3. Run the "Deploy Extension" action to publish the extension to the VSCode marketplace and Open VSX.
 
 ## Contributing
 

esbuild.js

@@ -0,0 +1,45 @@
+const { build } = require('esbuild');
+const { copy } = require('esbuild-plugin-copy');
+
+const production = process.argv.includes('--production');
+
+async function main() {
+  const files = {
+    'images/**': './images',
+    'snippets/**': './snippets',
+    'syntaxes/**': './syntaxes',
+    'CHANGELOG.md': './CHANGELOG.md',
+    'LICENSE.md': './LICENSE.md',
+    'README.md': './README.md',
+    'language-configuration.json': './language-configuration.json',
+    'package.json': './package.json',
+    'language-server/build/libs/language-server-all.jar': 'bin',
+    'node_modules/mermaid/dist/mermaid.min.js': 'media',
+  };
+  await build({
+    entryPoints: [
+      'src/extension.ts'
+    ],
+    bundle: true,
+    format: 'cjs',
+    minify: production,
+    sourcemap: !production,
+    sourcesContent: false,
+    platform: 'node',
+    outfile: 'build/extension.js',
+    external: ['vscode'],
+    logLevel: 'silent',
+    plugins: [
+      copy({
+        assets: Object.entries(files).map(([from, to]) => {
+          return { from, to };
+        }),
+      }),
+    ],
+  });
+}
+
+main().catch(e => {
+  console.error(e);
+  process.exit(1);
+});