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Contents
# frozen_string_literal: true
class Pry
class Command
class ShellCommand < Pry::ClassCommand
match(/\.(.*)/)
group 'Input and Output'
description "All text following a '.' is forwarded to the shell."
command_options listing: '.<shell command>', use_prefix: false,
takes_block: true
banner <<-'BANNER'
Usage: .COMMAND_NAME
All text following a "." is forwarded to the shell.
.ls -aF
.uname
BANNER
def process(cmd)
if cmd =~ /^cd\s*(.*)/i
process_cd parse_destination(Regexp.last_match(1))
else
pass_block(cmd)
if command_block
command_block.call `#{cmd}`
else
pry_instance.config.system.call(output, cmd, pry_instance)
end
end
end
private
def parse_destination(dest)
return "~" if dest.empty?
return dest unless dest == "-"
state.old_pwd || raise(CommandError, "No prior directory available")
end
def process_cd(dest)
state.old_pwd = Dir.pwd
Dir.chdir(File.expand_path(path_from_cd_path(dest) || dest))
rescue Errno::ENOENT
raise CommandError, "No such directory: #{dest}"
end
def cd_path_env
Pry::Env['CDPATH']
end
def cd_path_exists?
cd_path_env && cd_path_env.length.nonzero?
end
def path_from_cd_path(dest)
return if !(dest && cd_path_exists?) || special_case_path?(dest)
cd_path_env.split(File::PATH_SEPARATOR).each do |path|
return path if File.directory?(path) && path.split(File::SEPARATOR).last == dest
end
nil
end
def special_case_path?(dest)
['.', '..', '-'].include?(dest) || dest =~ /\A[#{File::PATH_SEPARATOR}~]/
end
end
Pry::Commands.add_command(Pry::Command::ShellCommand)
end
end
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