Documentation of Git workflow

README.md

@@ -28,3 +28,38 @@ see: https://confluence.jetbrains.com/display/IDEADEV/IDEA+Coverage+Runner
 
 Either apply it to specific test configurations or,
 better, delete the previous test configurations and amend the JUnit template.
+
+== Git Workflow
+
+The jhipster-generated git branch tracks the history of the JDL model file
+and the generated source code. The project has to be resetted to a clean state
+(without any generated entitites) before changes to the JDL file can be imported.
+
+    # Prepare/Cleanup Workspace
+
+    git checkout jhipster-generated
+    git reset --hard jdl-base
+    git clean -f -d
+    git checkout HEAD@{1} src/main/jdl/customer.jdl
+    git reset HEAD .
+
+    # Apply changes to the jdl file
+
+    # Invoke JHipster generator
+
+    jhipster import-jdl src/main/jdl/customer.jdl --force
+
+    # Let Git determine change set between most recent commit and the re-generated source
+
+    git reset --soft HEAD@{1}
+    git reset HEAD .
+    git add .
+
+    # Commit changeset
+
+    git commit -m '...'
+
+    # Merge changeset into master branch
+
+    git checkout master
+    git merge jhipster-generated