fix(migration): dynamically anchor target gitignore python virtualenv paths

Author: meltsufin

monorepo-migration/migrate.sh

@@ -382,6 +382,25 @@ if [ -d "$SOURCE_REPO_NAME/.github/workflows" ]; then
     COMMIT_COUNT=$((COMMIT_COUNT + 1))
 fi
 
+# 7.5c Anchor root .gitignore Python virtualenv paths to avoid deep package collisions
+if [ -f ".gitignore" ]; then
+    echo "Anchoring Python virtual environment paths in root .gitignore to prevent nested Java package collisions..."
+    sed -i.bak -e 's|^.env$|/.env|' \
+               -e 's|^.venv$|/.venv|' \
+               -e 's|^env/$|/env/|' \
+               -e 's|^venv/$|/venv/|' \
+               -e 's|^ENV/$|/ENV/|' \
+               -e 's|^env.bak/$|/env.bak/|' \
+               -e 's|^venv.bak/$|/venv.bak/|' \
+               ".gitignore"
+    rm -f ".gitignore.bak"
+    
+    echo "Committing root .gitignore anchors..."
+    git add .gitignore
+    git commit -n --no-gpg-sign -m "chore($SOURCE_REPO_NAME): anchor root .gitignore python env patterns to fix linter package collisions"
+    COMMIT_COUNT=$((COMMIT_COUNT + 1))
+fi
+
 # 7.6 Update generation_config.yaml
 echo "Updating generation_config.yaml..."
 SOURCE_CONFIG="$SOURCE_REPO_NAME/generation_config.yaml"