init

script/internal/exec.js

@@ -0,0 +1,49 @@
+const child_process = require('child_process')
+
+class ExecResult {
+  stdout = ''
+  exitCode = 0
+}
+exports.ExecResult = ExecResult
+
+/**
+ * Executes a process
+ * @param {string} command
+ * @param {string[]} args
+ * @param {boolea} allowAllExitCodes
+ * @returns {Promise<ExecResult>}
+ */
+function exec(
+  command = '',
+  args = [],
+  allowAllExitCodes = false
+) {
+  process.stdout.write(`EXEC: ${command} ${args.join(' ')}\n`)
+  return new Promise((resolve, reject) =>
+  {
+    const execResult = new ExecResult()
+    const cp = child_process.spawn(command, args, {})
+
+    // STDOUT
+    cp.stdout.on('data', (data) => {
+      process.stdout.write(data)
+      execResult.stdout += data.toString()
+    })
+
+    // STDERR
+    cp.stderr.on('data', (data) => {
+      process.stderr.write(data)
+    })
+
+    // Close
+    cp.on('close', (code) => {
+      execResult.exitCode = code
+      if (code === 0 || allowAllExitCodes) {
+        resolve(execResult)
+      } else {
+        reject(new Error(`Command exited with code ${code}`))
+      }
+    })
+  })
+}
+exports.exec = exec