Explicit reporting of free bytes after compilation

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Added
 - Add util/atomic.h
 - `Logger` class to centralize CI runner script logging (in particular, indentation)
+- Explicit reporting of free bytes after compilation
 
 ### Changed
 - `arduino_ci.rb` uses new `Logger`

exe/arduino_ci.rb

@@ -542,11 +542,13 @@ def perform_example_compilation_tests(cpp_library, config)
         end
       end
 
+      # reporting or enforcing of free space
+      usage = @backend.last_bytes_usage
+      @log.inform("Free space (bytes) after compilation") { usage[:free] }
       next if @cli_options[:min_free_space].nil?
 
-      usage = @backend.last_bytes_usage
       min_free_space = @cli_options[:min_free_space]
-      @log.attempt("Checking that the free space of #{usage[:free]} is at least the desired minimum of #{min_free_space}") do
+      @log.attempt("Free space exceeds desired minimum #{min_free_space}") do
         min_free_space <= usage[:free]
       end
     end