Extract checkFirmwareImage()

scripts/shared.js

@@ -1,5 +1,22 @@
 require('shelljs/global');
 
+function checkFirmwareImage(imagePath, extension) {
+    if (!imagePath) {
+        echo('No firmware image specified');
+        exit(1);
+    }
+
+    if (!imagePath.endsWith(extension)) {
+        echo(`Firmware image extension is not ${extension}`);
+        exit(1);
+    }
+
+    if (!test('-f', imagePath)) {
+        echo('Firmware image does not exist');
+        exit(1);
+    }
+}
+
 function getBlhostCmd() {
     let blhostPath;
     switch (process.platform) {
@@ -37,6 +54,7 @@ function execRetry(command) {
 }
 
 const exp = {
+    checkFirmwareImage,
     getBlhostCmd,
     execRetry,
 }

scripts/update-slave-firmware.js

@@ -3,33 +3,20 @@ const program = require('commander');
 require('shelljs/global');
 require('./shared')
 
+const extension = '.bin';
 config.fatal = true;
 
 program
-    .usage('update-slave-firmware <firmware-image>')
+    .usage(`update-slave-firmware <firmware-image${extension}>`)
     .parse(process.argv)
 
 const firmwareImage = program.args[0];
-
-if (!firmwareImage) {
-    echo('No firmware image specified');
-    exit(1);
-}
-
-if (!firmwareImage.endsWith('.bin')) {
-    echo('Firmware image extension is not .bin');
-    exit(1);
-}
-
-if (!test('-f', firmwareImage)) {
-    echo('Firmware image does not exist');
-    exit(1);
-}
-
 const usbDir = '../../../lib/agent/packages/usb';
 const blhostUsb = getBlhostCmd();
 const blhostBuspal = blhostUsb + ' --buspal i2c,0x10,100k';
 
+checkFirmwareImage(firmwareImage, extension);
+
 config.verbose = true;
 exec(`${usbDir}/send-kboot-command-to-slave.js ping 0x10`);
 exec(`${usbDir}/jump-to-slave-bootloader.js`);