chore(common): cd into build_dir at runtime

Author: nickchecan

Makefile

@@ -22,7 +22,7 @@ test-buildpack: clean-test-buildpack
 	$(BUILDPACK_DIR)/bin/compile $(BUILD_DIR) $(CACHE_DIR) $(ENV_DIR)
 	# Confirm staged dependencies are importable before checking the release metadata.
 	cd $(BUILD_DIR) && /bin/bash -lc 'source .profile.d/python.sh && $(PYTHON_BIN) -c "import fastapi; print(fastapi.__version__)"'
-	cd $(BUILD_DIR) && $(BUILDPACK_DIR)/bin/release
+	$(BUILDPACK_DIR)/bin/release $(BUILD_DIR)
 
 # Start the staged sample app locally using the dependencies prepared by `test-buildpack`.
 start-local:

bin/release

@@ -3,6 +3,9 @@
 
 set -euo pipefail
 
+BUILD_DIR="${1:?BUILD_DIR argument is required}"
+cd "$BUILD_DIR"
+
 # Prefer the Python interpreter staged by `bin/compile`, but fall back to a
 # system interpreter so local development and unit tests can still run.
 if [ -x ".python/bin/python3" ]; then

test/unit/release_test.sh

@@ -77,8 +77,7 @@ run_release() {
 
   set +e
   (
-    cd "$app_dir"
-    PATH="$FAKE_BIN_DIR:/usr/bin:/bin" REAL_PYTHON3="$REAL_PYTHON3" "$RELEASE_SCRIPT"
+    PATH="$FAKE_BIN_DIR:/usr/bin:/bin" REAL_PYTHON3="$REAL_PYTHON3" "$RELEASE_SCRIPT" "$app_dir"
   ) >"$output_file" 2>&1
   status=$?
   set -e