feat(flog): Add flog pre-commit hook

scripts/check_flog

@@ -0,0 +1,30 @@
+#!/usr/bin/env ruby
+
+MAX_SCORE=45
+
+flog_lines = `flog ./lib/`.split("\n")
+
+errors = []
+flog_lines.each_with_index do |line, index|
+  # Skip header
+  next if index < 3
+
+  pattern = /^ *(.*): (.*) (.*):[0-9]*/
+  matches = line.match(pattern)
+  score = matches[1].to_f
+
+  next if score < MAX_SCORE
+  errors << {
+    score: score,
+    method: matches[2],
+    file: matches[3]
+  }
+end
+
+exit 0 if errors.size == 0
+
+puts 'Flog test failed:'
+errors.sort_by { |a| a[:score] }.each do |error|
+  puts "#{error[:score]} / #{MAX_SCORE}: #{error[:method]} in #{error[:file]}"
+end
+exit 1

scripts/git_hooks/pre-commit

@@ -7,4 +7,7 @@ if grep --color -r 'spec' -E -e '^( |\t)*(fit|fdescribe|xit|xdescribe)'; then
 fi
 
 # Match style guide
-rubocop './lib/' './spec'
+rubocop -F './lib/' './spec' || exit 1
+
+# No over-complex methods
+./scripts/check_flog