Rename install to install-pnpm

src/install-pnpm/index.ts

@@ -0,0 +1,14 @@
+import { setFailed } from '@actions/core'
+import { Inputs } from '../inputs'
+import runSelfInstaller from './run'
+
+export { runSelfInstaller }
+
+export async function install(inputs: Inputs) {
+  const status = await runSelfInstaller(inputs)
+  if (status) {
+    return setFailed(`Something does wrong, self-installer exits with code ${status}`)
+  }
+}
+
+export default install

src/install-pnpm/run.ts

@@ -0,0 +1,26 @@
+import { spawn } from 'child_process'
+import { execPath } from 'process'
+import { downloadSelfInstaller } from '../self-installer'
+import { Inputs } from '../inputs'
+
+export async function runSelfInstaller(inputs: Inputs): Promise<number> {
+  const cp = spawn(execPath, {
+    env: {
+      PNPM_VERSION: inputs.version,
+      PNPM_DEST: inputs.dest,
+      PNPM_BIN_DEST: inputs.binDest,
+      PNPM_REGISTRY: inputs.registry,
+    },
+    stdio: ['pipe', 'inherit', 'inherit'],
+  })
+
+  const response = await downloadSelfInstaller()
+  response.body.pipe(cp.stdin)
+
+  return new Promise((resolve, reject) => {
+    cp.on('error', reject)
+    cp.on('close', resolve)
+  })
+}
+
+export default runSelfInstaller