Merge pull request #186 from heroku/log-state-reads

Log state reads

bin/compile

@@ -27,22 +27,29 @@ unset GIT_DIR
 # Provide hook to deal with errors
 trap build_failed ERR
 
-# Load config vars into environment; set smart defaults
-export_env_dir $env_dir
-export NPM_CONFIG_PRODUCTION=${NPM_CONFIG_PRODUCTION:-true}
-export NODE_MODULES_CACHE=${NODE_MODULES_CACHE:-true}
-
 ####### Determine current state
 
+head "Reading application state"
+
+info "package.json..."
 iojs_engine=$(read_json "$build_dir/package.json" ".engines.iojs")
 node_engine=$(read_json "$build_dir/package.json" ".engines.node")
-node_previous=$(file_contents "$cache_dir/node/node-version")
 npm_engine=$(read_json "$build_dir/package.json" ".engines.npm")
-npm_previous=$(file_contents "$cache_dir/node/npm-version")
+
+info "build directory..."
 start_method=$(get_start_method "$build_dir")
 modules_source=$(get_modules_source "$build_dir")
+
+info "cache directory..."
+npm_previous=$(file_contents "$cache_dir/node/npm-version")
+node_previous=$(file_contents "$cache_dir/node/node-version")
 modules_cached=$(get_modules_cached "$cache_dir")
 
+info "environment variables..."
+export_env_dir $env_dir
+export NPM_CONFIG_PRODUCTION=${NPM_CONFIG_PRODUCTION:-true}
+export NODE_MODULES_CACHE=${NODE_MODULES_CACHE:-true}
+
 show_current_state
 
 if [ "$iojs_engine" == "" ]; then