/usr/lib/ruby/vendor_ruby/rake/contrib/sys.rb is in rake 0.9.2.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#--
# Copyright 2003-2010 by Jim Weirich (jim.weirich@gmail.com)
# All rights reserved.
#++
#
begin
require 'ftools'
rescue LoadError
end
require 'rbconfig'
######################################################################
# Sys provides a number of file manipulation tools for the convenience
# of writing Rakefiles. All commands in this module will announce
# their activity on standard output if the $verbose flag is set
# ($verbose = true is the default). You can control this by globally
# setting $verbose or by using the +verbose+ and +quiet+ methods.
#
# Sys has been deprecated in favor of the FileUtils module available
# in Ruby 1.8.
#
module Sys
RUBY = RbConfig::CONFIG['ruby_install_name']
# Install all the files matching +wildcard+ into the +dest_dir+
# directory. The permission mode is set to +mode+.
def install(wildcard, dest_dir, mode)
Dir[wildcard].each do |fn|
File.install(fn, dest_dir, mode, $verbose)
end
end
# Run the system command +cmd+.
def run(cmd)
log cmd
system(cmd) or fail "Command Failed: [#{cmd}]"
end
# Run a Ruby interpreter with the given arguments.
def ruby(*args)
run "#{RUBY} #{args.join(' ')}"
end
# Copy a single file from +file_name+ to +dest_file+.
def copy(file_name, dest_file)
log "Copying file #{file_name} to #{dest_file}"
File.copy(file_name, dest_file)
end
# Copy all files matching +wildcard+ into the directory +dest_dir+.
def copy_files(wildcard, dest_dir)
for_matching_files(wildcard, dest_dir) { |from, to| copy(from, to) }
end
# Link +file_name+ to +dest_file+.
def link(file_name, dest_file)
log "Linking file #{file_name} to #{dest_file}"
File.link(file_name, dest_file)
end
# Link all files matching +wildcard+ into the directory +dest_dir+.
def link_files(wildcard, dest_dir)
for_matching_files(wildcard, dest_dir) { |from, to| link(from, to) }
end
# Symlink +file_name+ to +dest_file+.
def symlink(file_name, dest_file)
log "Symlinking file #{file_name} to #{dest_file}"
File.symlink(file_name, dest_file)
end
# Symlink all files matching +wildcard+ into the directory +dest_dir+.
def symlink_files(wildcard, dest_dir)
for_matching_files(wildcard, dest_dir) { |from, to| link(from, to) }
end
# Remove all files matching +wildcard+. If a matching file is a
# directory, it must be empty to be removed. used +delete_all+ to
# recursively delete directories.
def delete(*wildcards)
wildcards.each do |wildcard|
Dir[wildcard].each do |fn|
if File.directory?(fn)
log "Deleting directory #{fn}"
Dir.delete(fn)
else
log "Deleting file #{fn}"
File.delete(fn)
end
end
end
end
# Recursively delete all files and directories matching +wildcard+.
def delete_all(*wildcards)
wildcards.each do |wildcard|
Dir[wildcard].each do |fn|
next if ! File.exist?(fn)
if File.directory?(fn)
Dir["#{fn}/*"].each do |subfn|
next if subfn=='.' || subfn=='..'
delete_all(subfn)
end
log "Deleting directory #{fn}"
Dir.delete(fn)
else
log "Deleting file #{fn}"
File.delete(fn)
end
end
end
end
# Make the directories given in +dirs+.
def makedirs(*dirs)
dirs.each do |fn|
log "Making directory #{fn}"
File.makedirs(fn)
end
end
# Make +dir+ the current working directory for the duration of
# executing the given block.
def indir(dir)
olddir = Dir.pwd
Dir.chdir(dir)
yield
ensure
Dir.chdir(olddir)
end
# Split a file path into individual directory names.
#
# For example:
# split_all("a/b/c") => ['a', 'b', 'c']
def split_all(path)
head, tail = File.split(path)
return [tail] if head == '.' || tail == '/'
return [head, tail] if head == '/'
return split_all(head) + [tail]
end
# Write a message to standard error if $verbose is enabled.
def log(msg)
print " " if $trace && $verbose
$stderr.puts msg if $verbose
end
# Perform a block with $verbose disabled.
def quiet(&block)
with_verbose(false, &block)
end
# Perform a block with $verbose enabled.
def verbose(&block)
with_verbose(true, &block)
end
# Perform a block with each file matching a set of wildcards.
def for_files(*wildcards)
wildcards.each do |wildcard|
Dir[wildcard].each do |fn|
yield(fn)
end
end
end
extend(self)
private # ----------------------------------------------------------
def for_matching_files(wildcard, dest_dir)
Dir[wildcard].each do |fn|
dest_file = File.join(dest_dir, fn)
parent = File.dirname(dest_file)
makedirs(parent) if ! File.directory?(parent)
yield(fn, dest_file)
end
end
def with_verbose(v)
oldverbose = $verbose
$verbose = v
yield
ensure
$verbose = oldverbose
end
end
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