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# frozen_string_literal: false
#
# = un.rb
#
# Copyright (c) 2003 WATANABE Hirofumi <eban@ruby-lang.org>
#
# This program is free software.
# You can distribute/modify this program under the same terms of Ruby.
#
# == Utilities to replace common UNIX commands in Makefiles etc
#
# == SYNOPSIS
#
# ruby -run -e cp -- [OPTION] SOURCE DEST
# ruby -run -e ln -- [OPTION] TARGET LINK_NAME
# ruby -run -e mv -- [OPTION] SOURCE DEST
# ruby -run -e rm -- [OPTION] FILE
# ruby -run -e mkdir -- [OPTION] DIRS
# ruby -run -e rmdir -- [OPTION] DIRS
# ruby -run -e install -- [OPTION] SOURCE DEST
# ruby -run -e chmod -- [OPTION] OCTAL-MODE FILE
# ruby -run -e touch -- [OPTION] FILE
# ruby -run -e wait_writable -- [OPTION] FILE
# ruby -run -e mkmf -- [OPTION] EXTNAME [OPTION]
# ruby -run -e httpd -- [OPTION] DocumentRoot
# ruby -run -e help [COMMAND]
require "fileutils"
require "optparse"
module FileUtils
# @fileutils_label = ""
@fileutils_output = $stdout
end
# :nodoc:
def setup(options = "", *long_options)
caller = caller_locations(1, 1)[0].label
opt_hash = {}
argv = []
OptionParser.new do |o|
options.scan(/.:?/) do |s|
opt_name = s.delete(":").intern
o.on("-" + s.tr(":", " ")) do |val|
opt_hash[opt_name] = val
end
end
long_options.each do |s|
opt_name, arg_name = s.split(/(?=[\s=])/, 2)
opt_name.delete_prefix!('--')
s = "--#{opt_name.gsub(/([A-Z]+|[a-z])([A-Z])/, '\1-\2').downcase}#{arg_name}"
puts "#{opt_name}=>#{s}" if $DEBUG
opt_name = opt_name.intern
o.on(s) do |val|
opt_hash[opt_name] = val
end
end
o.on("-v") do opt_hash[:verbose] = true end
o.on("--help") do
UN.help([caller])
exit
end
o.order!(ARGV) do |x|
if /[*?\[{]/ =~ x
argv.concat(Dir[x])
else
argv << x
end
end
end
yield argv, opt_hash
end
##
# Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY
#
# ruby -run -e cp -- [OPTION] SOURCE DEST
#
# -p preserve file attributes if possible
# -r copy recursively
# -v verbose
#
def cp
setup("pr") do |argv, options|
cmd = "cp"
cmd += "_r" if options.delete :r
options[:preserve] = true if options.delete :p
dest = argv.pop
argv = argv[0] if argv.size == 1
FileUtils.send cmd, argv, dest, **options
end
end
##
# Create a link to the specified TARGET with LINK_NAME.
#
# ruby -run -e ln -- [OPTION] TARGET LINK_NAME
#
# -s make symbolic links instead of hard links
# -f remove existing destination files
# -v verbose
#
def ln
setup("sf") do |argv, options|
cmd = "ln"
cmd += "_s" if options.delete :s
options[:force] = true if options.delete :f
dest = argv.pop
argv = argv[0] if argv.size == 1
FileUtils.send cmd, argv, dest, **options
end
end
##
# Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.
#
# ruby -run -e mv -- [OPTION] SOURCE DEST
#
# -v verbose
#
def mv
setup do |argv, options|
dest = argv.pop
argv = argv[0] if argv.size == 1
FileUtils.mv argv, dest, **options
end
end
##
# Remove the FILE
#
# ruby -run -e rm -- [OPTION] FILE
#
# -f ignore nonexistent files
# -r remove the contents of directories recursively
# -v verbose
#
def rm
setup("fr") do |argv, options|
cmd = "rm"
cmd += "_r" if options.delete :r
options[:force] = true if options.delete :f
FileUtils.send cmd, argv, **options
end
end
##
# Create the DIR, if they do not already exist.
#
# ruby -run -e mkdir -- [OPTION] DIR
#
# -p no error if existing, make parent directories as needed
# -v verbose
#
def mkdir
setup("p") do |argv, options|
cmd = "mkdir"
cmd += "_p" if options.delete :p
FileUtils.send cmd, argv, **options
end
end
##
# Remove the DIR.
#
# ruby -run -e rmdir -- [OPTION] DIR
#
# -p remove DIRECTORY and its ancestors.
# -v verbose
#
def rmdir
setup("p") do |argv, options|
options[:parents] = true if options.delete :p
FileUtils.rmdir argv, **options
end
end
##
# Copy SOURCE to DEST.
#
# ruby -run -e install -- [OPTION] SOURCE DEST
#
# -p apply access/modification times of SOURCE files to
# corresponding destination files
# -m set permission mode (as in chmod), instead of 0755
# -o set owner user id, instead of the current owner
# -g set owner group id, instead of the current group
# -v verbose
#
def install
setup("pm:o:g:") do |argv, options|
(mode = options.delete :m) and options[:mode] = /\A\d/ =~ mode ? mode.oct : mode
options[:preserve] = true if options.delete :p
(owner = options.delete :o) and options[:owner] = owner
(group = options.delete :g) and options[:group] = group
dest = argv.pop
argv = argv[0] if argv.size == 1
FileUtils.install argv, dest, **options
end
end
##
# Change the mode of each FILE to OCTAL-MODE.
#
# ruby -run -e chmod -- [OPTION] OCTAL-MODE FILE
#
# -v verbose
#
def chmod
setup do |argv, options|
mode = argv.shift
mode = /\A\d/ =~ mode ? mode.oct : mode
FileUtils.chmod mode, argv, **options
end
end
##
# Update the access and modification times of each FILE to the current time.
#
# ruby -run -e touch -- [OPTION] FILE
#
# -v verbose
#
def touch
setup do |argv, options|
FileUtils.touch argv, **options
end
end
##
# Wait until the file becomes writable.
#
# ruby -run -e wait_writable -- [OPTION] FILE
#
# -n RETRY count to retry
# -w SEC each wait time in seconds
# -v verbose
#
def wait_writable
setup("n:w:v") do |argv, options|
verbose = options[:verbose]
n = options[:n] and n = Integer(n)
wait = (wait = options[:w]) ? Float(wait) : 0.2
argv.each do |file|
begin
open(file, "r+b")
rescue Errno::ENOENT
break
rescue Errno::EACCES => e
raise if n and (n -= 1) <= 0
if verbose
puts e
STDOUT.flush
end
sleep wait
retry
end
end
end
end
##
# Create makefile using mkmf.
#
# ruby -run -e mkmf -- [OPTION] EXTNAME [OPTION]
#
# -d ARGS run dir_config
# -h ARGS run have_header
# -l ARGS run have_library
# -f ARGS run have_func
# -v ARGS run have_var
# -t ARGS run have_type
# -m ARGS run have_macro
# -c ARGS run have_const
# --vendor install to vendor_ruby
#
def mkmf
setup("d:h:l:f:v:t:m:c:", "vendor") do |argv, options|
require 'mkmf'
opt = options[:d] and opt.split(/:/).each {|n| dir_config(*n.split(/,/))}
opt = options[:h] and opt.split(/:/).each {|n| have_header(*n.split(/,/))}
opt = options[:l] and opt.split(/:/).each {|n| have_library(*n.split(/,/))}
opt = options[:f] and opt.split(/:/).each {|n| have_func(*n.split(/,/))}
opt = options[:v] and opt.split(/:/).each {|n| have_var(*n.split(/,/))}
opt = options[:t] and opt.split(/:/).each {|n| have_type(*n.split(/,/))}
opt = options[:m] and opt.split(/:/).each {|n| have_macro(*n.split(/,/))}
opt = options[:c] and opt.split(/:/).each {|n| have_const(*n.split(/,/))}
$configure_args["--vendor"] = true if options[:vendor]
create_makefile(*argv)
end
end
##
# Run WEBrick HTTP server.
#
# ruby -run -e httpd -- [OPTION] DocumentRoot
#
# --bind-address=ADDR address to bind
# --port=NUM listening port number
# --max-clients=MAX max number of simultaneous clients
# --temp-dir=DIR temporary directory
# --do-not-reverse-lookup disable reverse lookup
# --request-timeout=SECOND request timeout in seconds
# --http-version=VERSION HTTP version
# --server-name=NAME name of the server host
# --server-software=NAME name and version of the server
# --ssl-certificate=CERT The SSL certificate file for the server
# --ssl-private-key=KEY The SSL private key file for the server certificate
# -v verbose
#
def httpd
setup("", "BindAddress=ADDR", "Port=PORT", "MaxClients=NUM", "TempDir=DIR",
"DoNotReverseLookup", "RequestTimeout=SECOND", "HTTPVersion=VERSION",
"ServerName=NAME", "ServerSoftware=NAME",
"SSLCertificate=CERT", "SSLPrivateKey=KEY") do
|argv, options|
require 'webrick'
opt = options[:RequestTimeout] and options[:RequestTimeout] = opt.to_i
[:Port, :MaxClients].each do |name|
opt = options[name] and (options[name] = Integer(opt)) rescue nil
end
if cert = options[:SSLCertificate]
key = options[:SSLPrivateKey] or
raise "--ssl-private-key option must also be given"
require 'webrick/https'
options[:SSLEnable] = true
options[:SSLCertificate] = OpenSSL::X509::Certificate.new(File.read(cert))
options[:SSLPrivateKey] = OpenSSL::PKey.read(File.read(key))
options[:Port] ||= 8443 # HTTPS Alternate
end
options[:Port] ||= 8080 # HTTP Alternate
options[:DocumentRoot] = argv.shift || '.'
s = WEBrick::HTTPServer.new(options)
shut = proc {s.shutdown}
siglist = %w"TERM QUIT"
siglist.concat(%w"HUP INT") if STDIN.tty?
siglist &= Signal.list.keys
siglist.each do |sig|
Signal.trap(sig, shut)
end
s.start
end
end
##
# Display help message.
#
# ruby -run -e help [COMMAND]
#
def help
setup do |argv,|
UN.help(argv)
end
end
module UN # :nodoc:
module_function
def help(argv, output: $stdout)
all = argv.empty?
cmd = nil
if all
store = proc {|msg| output << msg}
else
messages = {}
store = proc {|msg| messages[cmd] = msg}
end
open(__FILE__) do |me|
while me.gets("##\n")
if help = me.gets("\n\n")
if all or argv.include?(cmd = help[/^#\s*ruby\s.*-e\s+(\w+)/, 1])
store[help.gsub(/^# ?/, "")]
break unless all or argv.size > messages.size
end
end
end
end
if messages
argv.each {|arg| output << messages[arg]}
end
end
end
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