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agents/fedeo-device-agent/src/commands.ts

@@ -0,0 +1,48 @@
+import { spawn } from "node:child_process"
+
+export type CommandResult = {
+    stdout: string
+    stderr: string
+    code: number
+}
+
+export const commandExists = (command: string) =>
+    new Promise<boolean>((resolve) => {
+        const child = spawn("sh", ["-lc", `command -v ${command}`])
+        child.on("error", () => resolve(false))
+        child.on("close", (code) => resolve(code === 0))
+    })
+
+export const runCommand = (
+    command: string,
+    args: string[],
+    options: { timeoutMs?: number } = {}
+) =>
+    new Promise<CommandResult>((resolve, reject) => {
+        const child = spawn(command, args, {
+            stdio: ["ignore", "pipe", "pipe"],
+        })
+
+        const stdout: Buffer[] = []
+        const stderr: Buffer[] = []
+
+        const timeout = options.timeoutMs
+            ? setTimeout(() => {
+                child.kill("SIGTERM")
+                reject(new Error(`${command} wurde nach ${options.timeoutMs} ms beendet`))
+            }, options.timeoutMs)
+            : null
+
+        child.stdout.on("data", (chunk) => stdout.push(Buffer.from(chunk)))
+        child.stderr.on("data", (chunk) => stderr.push(Buffer.from(chunk)))
+        child.on("error", reject)
+        child.on("close", (code) => {
+            if (timeout) clearTimeout(timeout)
+
+            resolve({
+                stdout: Buffer.concat(stdout).toString("utf8"),
+                stderr: Buffer.concat(stderr).toString("utf8"),
+                code: code ?? 0,
+            })
+        })
+    })