module Musical::Util
Constants
- REQUIRED_APPS
Public Instance Methods
check_env()
click to toggle source
# File lib/musical/util.rb, line 6 def check_env REQUIRED_APPS.each do |app| unless installed?(app) messages = [] messages << "'#{app}' is not installed." messages << "Try this command to install '#{app}'." messages << "" messages << " brew install #{app}" messages << "" raise RuntimeError, messages.join("\n") end end true end
execute_command(cmd, silent = false)
click to toggle source
# File lib/musical/util.rb, line 25 def execute_command(cmd, silent = false) cmd << ' 2>/dev/null' if silent execute_out, _ = *Open3.capture2(cmd) execute_out end
installed?(app)
click to toggle source
# File lib/musical/util.rb, line 21 def installed?(app) !execute_command("which #{app}").empty? end