Add pnpm install

src/pnpm-install/index.ts

@@ -0,0 +1,40 @@
+import process from 'process'
+import path from 'path'
+import { spawnSync } from 'child_process'
+import { setFailed } from '@actions/core'
+import { Inputs } from '../inputs'
+
+export function runPnpmInstall(inputs: Inputs) {
+  const env = {
+    ...process.env,
+    PATH: inputs.binDest + path.delimiter + process.env.PATH
+  }
+
+  for (const options of inputs.runInstall) {
+    const args = ['install']
+    if (options.recursive) args.unshift('recursive')
+    if (options.args) args.push(...options.args)
+
+    const cmdStr = ['pnpm', ...args].join(' ')
+    console.log('Running', cmdStr)
+
+    const { error, status } = spawnSync('pnpm', args, {
+      stdio: 'inherit',
+      cwd: options.cwd,
+      shell: true,
+      env,
+    })
+
+    if (error) {
+      setFailed(error)
+      continue
+    }
+
+    if (status) {
+      setFailed(`Command ${cmdStr} (cwd: ${options.cwd}) exits with status ${status}`)
+      continue
+    }
+  }
+}
+
+export default runPnpmInstall