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* lib/fileutils.rb (mv): new option `force'. [ruby-talk:99457]

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* lib/fileutils.rb: new method for command option reflection: FileUtils.commands, .options, .have_option?, .options_of, .collect_methods.
* lib/fileutils.rb: module Verbose, NoWrite, DryRun do not have option flags @fileutils_verbose and @fileutils_noop, they make no sense.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6271 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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aamine 2004-05-07 13:08:12 +00:00
parent 6bb2e55d0c
commit 97391920d3
2 changed files with 111 additions and 66 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
Fri May 7 22:07:39 2004 Minero Aoki <aamine@loveruby.net>
* lib/fileutils.rb (mv): new option `force'. [ruby-talk:99457]
* lib/fileutils.rb: new method for command option reflection:
FileUtils.commands, .options, .have_option?, .options_of,
.collect_methods.
* lib/fileutils.rb: module Verbose, NoWrite, DryRun do not have
option flags @fileutils_verbose and @fileutils_noop, they make no
sense.
Fri May 7 21:50:21 2004 Dave Thomas <dave@pragprog.com> Fri May 7 21:50:21 2004 Dave Thomas <dave@pragprog.com>
* lib/rdoc/parsers/parse_rb.rb (RDoc::parse_include): Allow * lib/rdoc/parsers/parse_rb.rb (RDoc::parse_include): Allow

159
lib/fileutils.rb
View file

@ -1,7 +1,7 @@
# #
# = fileutils.rb # = fileutils.rb
# #
# Copyright (c) 2000-2003 Minero Aoki <aamine@loveruby.net> # Copyright (c) 2000-2004 Minero Aoki <aamine@loveruby.net>
# #
# This program is free software. # This program is free software.
# You can distribute/modify this program under the same terms of ruby. # You can distribute/modify this program under the same terms of ruby.
@ -48,9 +48,9 @@
# There are some `low level' methods, which does not accept any option: # There are some `low level' methods, which does not accept any option:
# #
# uptodate?(file, cmp_list) # uptodate?(file, cmp_list)
# copy_file(srcfilename, destfilename) # copy_file(srcpath, destpath)
# copy_stream(srcstream, deststream) # copy_stream(srcstream, deststream)
# compare_file(file_a, file_b) # compare_file(path_a, path_b)
# compare_stream(stream_a, stream_b) # compare_stream(stream_a, stream_b)
# #
# == module FileUtils::Verbose # == module FileUtils::Verbose
@ -65,6 +65,12 @@
# files/directories. This equates to passing the <tt>:noop</tt> flag to methods # files/directories. This equates to passing the <tt>:noop</tt> flag to methods
# in FileUtils. # in FileUtils.
# #
# == module FileUtils::DryRun
#
# This module has all methods of FileUtils module, but never changes
# files/directories. This equates to passing the <tt>:noop</tt> and
# <tt>:verbose</tt> flags to methods in FileUtils.
#
module FileUtils module FileUtils
@ -374,7 +380,7 @@ module FileUtils
end end
private :fu_copy_dir private :fu_copy_dir
def fu_p_copy(src, dest, really) #:nodoc: def fu_p_copy(src, dest, really = true) #:nodoc:
fu_preserve_attr(really, src, dest) { fu_preserve_attr(really, src, dest) {
copy_file src, dest copy_file src, dest
} }
@ -427,43 +433,42 @@ module FileUtils
end end
# #
# Options: noop verbose # Options: force noop verbose
# #
# Moves file(s) +src+ to +dest+. If +file+ and +dest+ exist on the different # Moves file(s) +src+ to +dest+. If +file+ and +dest+ exist on the different
# disk partition, the file is copied instead. # disk partition, the file is copied instead.
# #
# FileUtils.mv 'badname.rb', 'goodname.rb' # FileUtils.mv 'badname.rb', 'goodname.rb'
# FileUtils.mv 'stuff.rb', 'lib/ruby', :force => true # FileUtils.mv 'stuff.rb', '/notexist/lib/ruby', :force => true # no error
# #
# FileUtils.mv %w(junk.txt dust.txt), '/home/aamine/.trash/' # FileUtils.mv %w(junk.txt dust.txt), '/home/aamine/.trash/'
# FileUtils.mv Dir.glob('test*.rb'), 'test', :noop, :verbose => true # FileUtils.mv Dir.glob('test*.rb'), 'test', :noop => true, :verbose => true
# #
def mv(src, dest, options = {}) def mv(src, dest, options = {})
fu_check_options options, :noop, :verbose fu_check_options options, :force, :noop, :verbose
fu_output_message "mv #{[src,dest].flatten.join ' '}" if options[:verbose] fu_output_message "mv#{options[:force] ? ' -f' : ''} #{[src,dest].flatten.join ' '}" if options[:verbose]
return if options[:noop] return if options[:noop]
fu_each_src_dest(src, dest) do |s,d| fu_each_src_dest(src, dest) do |s,d|
if rename_cannot_overwrite_file? and File.file?(d) if rename_cannot_overwrite_file? and File.file?(d)
begin
File.unlink d File.unlink d
rescue SystemCallError
raise unless options[:force]
end
end end
begin begin
File.rename s, d File.rename s, d
rescue rescue SystemCallError
if File.symlink?(s)
File.symlink File.readlink(s), dest
File.unlink s
else
st = File.stat(s)
copy_file s, d
File.unlink s
File.utime st.atime, st.mtime, d
begin begin
File.chown st.uid, st.gid, d if File.symlink?(s)
rescue File.symlink File.readlink(s), d
# ignore else
fu_p_copy s, d
end end
File.unlink s
rescue SystemCallError
raise unless options[:force]
end end
end end
end end
@ -791,114 +796,142 @@ module FileUtils
OPT_TABLE = { OPT_TABLE = {
'pwd' => %w(),
'cd' => %w( noop verbose ), 'cd' => %w( noop verbose ),
'chdir' => %w( noop verbose ), 'chdir' => %w( noop verbose ),
'chmod' => %w( noop verbose ), 'chmod' => %w( noop verbose ),
'copy' => %w( preserve noop verbose ), 'copy' => %w( noop verbose preserve ),
'cp' => %w( preserve noop verbose ), 'cp' => %w( noop verbose preserve ),
'cp_r' => %w( preserve noop verbose ), 'cp_r' => %w( noop verbose preserve ),
'install' => %w( preserve mode noop verbose ), 'install' => %w( noop verbose preserve mode ),
'link' => %w( force noop verbose ), 'link' => %w( noop verbose force ),
'ln' => %w( force noop verbose ), 'ln' => %w( noop verbose force ),
'ln_s' => %w( force noop verbose ), 'ln_s' => %w( noop verbose force ),
'ln_sf' => %w( noop verbose ), 'ln_sf' => %w( noop verbose ),
'makedirs' => %w( noop verbose ), 'makedirs' => %w( noop verbose ),
'mkdir' => %w( mode noop verbose ), 'mkdir' => %w( noop verbose mode ),
'mkdir_p' => %w( mode noop verbose ), 'mkdir_p' => %w( noop verbose mode ),
'mkpath' => %w( noop verbose ), 'mkpath' => %w( noop verbose ),
'move' => %w( noop verbose ), 'move' => %w( noop verbose force ),
'mv' => %w( noop verbose ), 'mv' => %w( noop verbose force ),
'remove' => %w( force noop verbose ), 'remove' => %w( noop verbose force ),
'rm' => %w( force noop verbose ), 'rm' => %w( noop verbose force ),
'rm_f' => %w( noop verbose ), 'rm_f' => %w( noop verbose ),
'rm_r' => %w( force noop verbose ), 'rm_r' => %w( noop verbose force ),
'rm_rf' => %w( noop verbose ), 'rm_rf' => %w( noop verbose ),
'rmtree' => %w( noop verbose ), 'rmtree' => %w( noop verbose ),
'rmdir' => %w( noop verbose ), 'rmdir' => %w( noop verbose ),
'safe_unlink' => %w( noop verbose ), 'safe_unlink' => %w( noop verbose ),
'symlink' => %w( force noop verbose ), 'symlink' => %w( noop verbose force ),
'touch' => %w( noop verbose ) 'touch' => %w( noop verbose )
} }
#
# Returns an Array of method names which have any options.
#
# p FileUtils.commands #=> ["chmod", "cp", "cp_r", "install", ...]
#
def FileUtils.commands
OPT_TABLE.keys
end
#
# Returns an Array of option names.
#
# p FileUtils.options #=> ["noop", "force", "verbose", "preserve", "mode"]
#
def FileUtils.options
OPT_TABLE.values.flatten.uniq
end
#
# Returns true if the method +mid+ have an option +opt+.
#
# p FileUtils.have_option?(:cp, :noop) #=> true
# p FileUtils.have_option?(:rm, :force) #=> true
# p FileUtils.have_option?(:rm, :perserve) #=> false
#
def FileUtils.have_option?(mid, opt)
li = OPT_TABLE[mid] or raise ArgumentError, "no such method: #{mid}"
li.include?(opt.to_s)
end
#
# Returns an Array of option names of the method +mid+.
#
# p FileUtils.options(:rm) #=> ["noop", "verbose", "force"]
#
def FileUtils.options_of(mid)
OPT_TABLE[mid.to_s]
end
#
# Returns an Array of method names which have the option +opt+.
#
# p FileUtils.collect_methods(:preserve) #=> ["cp", "cp_r", "copy", "install"]
#
def FileUtils.collect_methods(opt)
OPT_TABLE.keys.select {|m| OPT_TABLE[m].include?(opt) }
end
# #
# This module has all methods of FileUtils module, but it outputs messages # This module has all methods of FileUtils module, but it outputs messages
# before acting. This equates to passing the <tt>:verbose</tt> flag to methods in # before acting. This equates to passing the <tt>:verbose</tt> flag to
# FileUtils. # methods in FileUtils.
# #
module Verbose module Verbose
include FileUtils include FileUtils
@fileutils_output = $stderr @fileutils_output = $stderr
@fileutils_label = '' @fileutils_label = ''
@fileutils_verbose = true
@fileutils_nowrite = false
FileUtils::OPT_TABLE.each do |name, opts| FileUtils::OPT_TABLE.each do |name, opts|
next unless opts.include?('verbose') next unless opts.include?('verbose')
module_eval(<<-EOS, __FILE__, __LINE__ + 1) module_eval(<<-EOS, __FILE__, __LINE__ + 1)
def #{name}(*args) def #{name}(*args)
@fileutils_verbose = true unless defined?(@fileutils_verbose) super(*fu_update_option(args, :verbose => true))
super(*fu_update_option(args, :verbose => @fileutils_verbose))
end end
EOS EOS
end end
extend self extend self
end end
# #
# This module has all methods of FileUtils module, but never changes # This module has all methods of FileUtils module, but never changes
# files/directories. This equates to passing the <tt>:noop</tt> flag to methods in # files/directories. This equates to passing the <tt>:noop</tt> flag
# FileUtils. # to methods in FileUtils.
# #
module NoWrite module NoWrite
include FileUtils include FileUtils
@fileutils_output = $stderr @fileutils_output = $stderr
@fileutils_label = '' @fileutils_label = ''
@fileutils_verbose = false
@fileutils_nowrite = true
FileUtils::OPT_TABLE.each do |name, opts| FileUtils::OPT_TABLE.each do |name, opts|
next unless opts.include?('noop') next unless opts.include?('noop')
module_eval(<<-EOS, __FILE__, __LINE__ + 1) module_eval(<<-EOS, __FILE__, __LINE__ + 1)
def #{name}(*args) def #{name}(*args)
@fileutils_nowrite = true unless defined?(@fileutils_nowrite)
super(*fu_update_option(args, :noop => true)) super(*fu_update_option(args, :noop => true))
end end
EOS EOS
end end
extend self extend self
end end
# #
# This module has all methods of FileUtils module, but never changes # This module has all methods of FileUtils module, but never changes
# files/directories, with printing message before acting. # files/directories, with printing message before acting.
# This equates to passing the +:noop+ and +:verbose+ flag # This equates to passing the <tt>:noop</tt> and <tt>:verbose</tt> flag
# to methods in FileUtils. # to methods in FileUtils.
# #
module DryRun module DryRun
include FileUtils include FileUtils
@fileutils_output = $stderr @fileutils_output = $stderr
@fileutils_label = '' @fileutils_label = ''
@fileutils_verbose = true
@fileutils_nowrite = true
FileUtils::OPT_TABLE.each do |name, opts| FileUtils::OPT_TABLE.each do |name, opts|
next unless opts.include?('noop') next unless opts.include?('noop')
module_eval(<<-EOS, __FILE__, __LINE__ + 1) module_eval(<<-EOS, __FILE__, __LINE__ + 1)
def #{name}(*args) def #{name}(*args)
@fileutils_verbose = true unless defined?(@fileutils_verbose)
@fileutils_nowrite = true unless defined?(@fileutils_nowrite)
super(*fu_update_option(args, :noop => true, :verbose => true)) super(*fu_update_option(args, :noop => true, :verbose => true))
end end
EOS EOS
end end
extend self extend self
end end