* Report output from compile.

* Allow test for minimum free space.

Author: jgfoster

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 ### Added
+- Show output from successful compile
+- `--min-free-space=N` command-line argument to fail if free space is below requred value
 
 ### Changed
 - Change 266 files from CRLF to LF.

exe/arduino_ci.rb

@@ -478,8 +478,18 @@ def perform_example_compilation_tests(cpp_library, config)
       board = ovr_config.platform_info[p][:board]
       attempt("Compiling #{example_name} for #{board}") do
         ret = @backend.compile_sketch(example_path, board)
-        unless ret
-          puts
+        puts
+        if ret
+          output = @backend.last_msg
+          puts output
+          i = output.index("leaving")
+          free_space = output[i + 8..-1].to_i()
+          min_free_space = @cli_options[:min_free_space]
+          if free_space < min_free_space
+            puts "Free space of #{free_space} is less than minimum of #{min_free_space}"
+            ret = false
+          end
+        else
           puts "Last command: #{@backend.last_msg}"
           puts @backend.last_err
         end

lib/arduino_ci/arduino_backend.rb

@@ -164,6 +164,7 @@ def compile_sketch(path, boardname)
         return false
       end
       ret = run_and_capture("compile", "--fqbn", boardname, "--warnings", "all", "--dry-run", path.to_s)
+      @last_msg = ret[:out]
       ret[:success]
     end