[RUBY] Develop C programs with guard

Overview

• When creating a C program, use guard to detect file changes and repeat build and test execution.

advantage

• Builds and tests are performed when a file change is detected, so you can immediately see that a compile error or test has failed.

Construction procedure

It is assumed that the ruby environment has been created

1. Create a Gemfile

source 'https://rubygems.org'
gem 'guard'
gem 'guard-shell'

2. Installation

bundle install

3. Create Guardfile

bundle exec guard init

# A sample Guardfile
# More info at https://github.com/guard/guard#readme

# Add files and commands to this file, like the example:
#   watch(%r{file/path}) { `command(s)` }
#
guard 'shell' do
  watch(/(.*).txt/) {|m| `tail #{m[0]}` }
end

Example

guard 'shell' do 
  watch(%r{^.+\.(h|c)$}) do 
    `make test` 
  end 
end

4. Start Guard.

bundle exec guard

This will detect the changes in the file and run the build or test.

Reference material

http://stackoverflow.com/questions/9673629/using-ruby-guard-gem-to-monitor-c-files