Class: Byebug::RestartCommand
Overview
Constant Summary
Constants inherited
from Command
Command::DEF_OPTIONS
Class Method Summary
collapse
Instance Method Summary
collapse
Methods inherited from Command
commands, #find, inherited, #initialize, load_commands, #match, method_missing, options, register_setting_get, register_setting_set, register_setting_var, settings, settings_map
Class Method Details
.help(cmd) ⇒ Object
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# File 'lib/byebug/commands/control.rb', line 69
def help(cmd)
%{
restart|R [args]
Restart the program. This is a re-exec - all byebug state
is lost. If command arguments are passed those are used.
}
end
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.help_command ⇒ Object
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# File 'lib/byebug/commands/control.rb', line 65
def help_command
'restart'
end
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Instance Method Details
#execute ⇒ Object
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# File 'lib/byebug/commands/control.rb', line 14
def execute
if not defined? Byebug::PROG_SCRIPT
errmsg "Don't know name of debugged program\n"
return
end
if not File.exist?(File.expand_path(Byebug::PROG_SCRIPT))
errmsg "Ruby program #{Byebug::PROG_SCRIPT} doesn't exist\n"
return
end
if not defined? Byebug::RDEBUG_SCRIPT
print "Byebug was not called from the outset...\n"
if not File.executable?(Byebug::PROG_SCRIPT)
print "Ruby program #{Byebug::PROG_SCRIPT} not executable... " \
"We'll add a call to Ruby.\n"
ruby = begin defined?(Gem) ? Gem.ruby : "ruby" rescue "ruby" end
rdebug_script = "#{ruby} -I#{$:.join(' -I')} #{Byebug::PROG_SCRIPT}"
else
rdebug_script = Byebug::PROG_SCRIPT
end
else
rdebug_script = Byebug::RDEBUG_SCRIPT
end
begin
Dir.chdir(Byebug::INITIAL_DIR)
rescue
print "Failed to change initial directory #{Byebug::INITIAL_DIR}"
end
if @match[1]
argv = [Byebug::PROG_SCRIPT] + @match[1].split(/[ \t]+/)
else
if not defined? Command.settings[:argv]
errmsg "Arguments have not been set. Use 'set args' to set them.\n"
return
else
argv = Command.settings[:argv]
end
end
cmd = "#{rdebug_script} #{argv.compact.join(' ')}"
print "Re exec'ing:\n\t#{cmd}\n"
exec cmd
rescue Errno::EOPNOTSUPP
print "Restart command is not available at this time.\n"
end
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#regexp ⇒ Object
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# File 'lib/byebug/commands/control.rb', line 6
def regexp
/ ^\s*
(?:restart|R)
(?:\s+ (\S?.*\S))? \s*
$
/ix
end
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