debug

bin/compile

@@ -51,6 +51,9 @@ else
   CACHED_STACK=
 fi
 
+echo "STACK=${STACK}."
+echo "CACHED_STACK=${CACHED_STACK}."
+
 # Ensure we store the STACK in the cache for next time.
 mkdir -p "${CACHE_DIR}/.apt"
 echo "${STACK}" > "${STACK_VERSION_FILE}"

test/run

@@ -20,24 +20,34 @@ testCacheInvalidation() {
   cache_dir=$(mktmpdir)
 
   # Cold cache
+  echo "## One"
   compile "package-names" "${cache_dir}"
+  cat ${STD_OUT}
   assertCaptured "Detected Aptfile or Stack changes, flushing cache"
   assertCapturedSuccess
 
   # Warm cache
+  echo "## Two"
   compile "package-names" "${cache_dir}"
+  cat ${STD_OUT}
   assertCaptured "Reusing cache"
   assertCapturedSuccess
 
   # Cache invalidated on stack change
+  echo "## Three"
   compile "package-names" "${cache_dir}"
+  ls -alR "${cache_dir}"
+  cat "${cache_dir}/.apt/STACK"
   echo 'some-old-stack' > "${cache_dir}/.apt/STACK"
+  cat ${STD_OUT}
   assertCaptured "Detected Aptfile or Stack changes, flushing cache"
   assertCapturedSuccess
 
   # Cache invalidated if stack version file missing (eg cache from old buildpack version)
+  echo "## Four"
   compile "package-names" "${cache_dir}"
   rm "${cache_dir}/.apt/STACK"
+  cat ${STD_OUT}
   assertCaptured "Detected Aptfile or Stack changes, flushing cache"
   assertCapturedSuccess
 }