fix: resolve linux build issues, add git exit code 128 warning

Author: Example User

jobs/build.yml

@@ -9,6 +9,9 @@ jobs:
 - job: ${{ parameters.name }}
   pool: ${{ parameters.pool }}
   steps:
+  - script: git config --global user.email "[email protected]"
+  - script: git config --global user.name "Example Git User"
+  - script: npm install -g yarn
   - script: npm install
   - script: npm run build
   - script: npm test

src/git/commit.js

@@ -27,8 +27,16 @@ function commit (sh, repoPath, message, options, done) {
   child.on('exit', function (code, signal) {
     if (called) return;
     called = true;
-
+    
     if (code) {
+      if (code === 128) {
+        console.warn(`
+          Git exited with code 128. Did you forget to run:
+  
+            git config --global user.email "[email protected]"
+            git config --global user.name "Your Name"
+          `)
+      }
       done(Object.assign(new Error(`git exited with error code ${code}`), { code, signal }));
     } else {
       done(null);