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files >> //opt/alt/ruby20/lib64/ruby/2.0.0/rake/alt_system.rb
# # Copyright (c) 2008 James M. Lawrence # # Permission is hereby granted, free of charge, to any person # obtaining a copy of this software and associated documentation files # (the "Software"), to deal in the Software without restriction, # including without limitation the rights to use, copy, modify, merge, # publish, distribute, sublicense, and/or sell copies of the Software, # and to permit persons to whom the Software is furnished to do so, # subject to the following conditions: # # The above copyright notice and this permission notice shall be # included in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. # require 'rbconfig' # # Alternate implementations of system() and backticks `` on Windows # for ruby-1.8 and earlier. # module Rake::AltSystem WINDOWS = RbConfig::CONFIG["host_os"] =~ %r!(msdos|mswin|djgpp|mingw|[Ww]indows)! class << self def define_module_function(name, &block) define_method(name, &block) module_function(name) end end if WINDOWS and RUBY_VERSION < "1.9.0" RUNNABLE_EXTS = %w[com exe bat cmd] RUNNABLE_PATTERN = %r!\.(#{RUNNABLE_EXTS.join('|')})\Z!i define_module_function :kernel_system, &Kernel.method(:system) define_module_function :kernel_backticks, &Kernel.method(:'`') module_function def repair_command(cmd) "call " + ( if cmd =~ %r!\A\s*\".*?\"! # already quoted cmd elsif match = cmd.match(%r!\A\s*(\S+)!) if match[1] =~ %r!/! # avoid x/y.bat interpretation as x with option /y %Q!"#{match[1]}"! + match.post_match else # a shell command will fail if quoted cmd end else # empty or whitespace cmd end ) end def find_runnable(file) if file =~ RUNNABLE_PATTERN file else RUNNABLE_EXTS.each { |ext| if File.exist?(test = "#{file}.#{ext}") return test end } nil end end def system(cmd, *args) repaired = ( if args.empty? [repair_command(cmd)] elsif runnable = find_runnable(cmd) [File.expand_path(runnable), *args] else # non-existent file [cmd, *args] end ) kernel_system(*repaired) end def backticks(cmd) kernel_backticks(repair_command(cmd)) end define_module_function :'`', &method(:backticks) else # Non-Windows or ruby-1.9+: same as Kernel versions define_module_function :system, &Kernel.method(:system) define_module_function :backticks, &Kernel.method(:'`') define_module_function :'`', &Kernel.method(:'`') end end
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