Class: FastlaneCore::CommandExecutor

Inherits:
Object
  • Object
show all
Defined in:
lib/fastlane_core/command_executor.rb

Overview

Executes commands and takes care of error handling and more

Class Method Summary collapse

Class Method Details

.execute(command: nil, print_all: false, print_command: true, error: nil, prefix: nil, loading: nil) ⇒ String

Returns All the output as string.

Parameters:

  • command (String) (defaults to: nil) —

    The command to be executed

  • print_all (Boolean) (defaults to: false) —

    Do we want to print out the command output while running?

  • print_command (Boolean) (defaults to: true) —

    Should we print the command that’s being executed

  • error (Block) (defaults to: nil) —

    A block that’s called if an error occurs

  • prefix (Array) (defaults to: nil) —

    An array containg a prefix + block which might get applied to the output

  • loading (String) (defaults to: nil) —

    A loading string that is shown before the first output

Returns:

  • (String) —

    All the output as string



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# File 'lib/fastlane_core/command_executor.rb', line 12

def execute(command: nil, print_all: false, print_command: true, error: nil, prefix: nil, loading: nil)
  print_all = true if $verbose
  prefix ||= {}

  output = []
  command = command.join(" ") if command.kind_of?(Array)
  Helper.log.info command.yellow.strip if print_command

  if print_all and loading # this is only used to show the "Loading text"...
    system("clear")
    puts loading.cyan
  end

  begin
    PTY.spawn(command) do |stdin, stdout, pid|
      stdin.each do |l|
        line = l.strip # strip so that \n gets removed
        output << line

        next unless print_all

        line = line.cyan

        # Prefix the current line with a string
        prefix.each do |element|
          line = element[:prefix] + line if element[:block] && element[:block].call(line)
        end

        # The actual output here, first clear and then print out 3 lines
        system("clear")
        puts line
      end
      Process.wait(pid)
      system("clear")
    end
  rescue => ex
    # This could happen when the environment is wrong:
    # > invalid byte sequence in US-ASCII (ArgumentError)
    output << ex.to_s
    o = output.join("\n")
    puts o
    error.call(o, nil)
  end

  # Exit status for build command, should be 0 if build succeeded
  status = $?.exitstatus
  if status != 0
    o = output.join("\n")
    puts o # the user has the right to see the raw output
    Helper.log.info "Exit status: #{status}"
    error.call(o, status)
  end

  return output.join("\n")
end