Skip to content

Commit

Permalink
[ruby/fileutils] Update the documentation content and formatting
Browse files Browse the repository at this point in the history 
ruby/fileutils@b701353c53
  • Loading branch information
@zverok @hsbt
zverok authored and hsbt committed Sep 27, 2019
1 parent 660c7e0 commit 366dd9d
Showing 1 changed file with 93 additions and 74 deletions.
167 changes: 93 additions & 74 deletions lib/fileutils.rb
View file
Expand Up @@ -24,46 +24,56 @@
#
# require 'fileutils'
#
# FileUtils.cd(dir, options)
# FileUtils.cd(dir, options) {|dir| block }
# FileUtils.cd(dir, **options)
# FileUtils.cd(dir, **options) {|dir| block }
# FileUtils.pwd()
# FileUtils.mkdir(dir, options)
# FileUtils.mkdir(list, options)
# FileUtils.mkdir_p(dir, options)
# FileUtils.mkdir_p(list, options)
# FileUtils.rmdir(dir, options)
# FileUtils.rmdir(list, options)
# FileUtils.ln(target, link, options)
# FileUtils.ln(targets, dir, options)
# FileUtils.ln_s(target, link, options)
# FileUtils.ln_s(targets, dir, options)
# FileUtils.ln_sf(target, link, options)
# FileUtils.cp(src, dest, options)
# FileUtils.cp(list, dir, options)
# FileUtils.cp_r(src, dest, options)
# FileUtils.cp_r(list, dir, options)
# FileUtils.mv(src, dest, options)
# FileUtils.mv(list, dir, options)
# FileUtils.rm(list, options)
# FileUtils.rm_r(list, options)
# FileUtils.rm_rf(list, options)
# FileUtils.install(src, dest, options)
# FileUtils.chmod(mode, list, options)
# FileUtils.chmod_R(mode, list, options)
# FileUtils.chown(user, group, list, options)
# FileUtils.chown_R(user, group, list, options)
# FileUtils.touch(list, options)
# FileUtils.mkdir(dir, **options)
# FileUtils.mkdir(list, **options)
# FileUtils.mkdir_p(dir, **options)
# FileUtils.mkdir_p(list, **options)
# FileUtils.rmdir(dir, **options)
# FileUtils.rmdir(list, **options)
# FileUtils.ln(target, link, **options)
# FileUtils.ln(targets, dir, **options)
# FileUtils.ln_s(target, link, **options)
# FileUtils.ln_s(targets, dir, **options)
# FileUtils.ln_sf(target, link, **options)
# FileUtils.cp(src, dest, **options)
# FileUtils.cp(list, dir, **options)
# FileUtils.cp_r(src, dest, **options)
# FileUtils.cp_r(list, dir, **options)
# FileUtils.mv(src, dest, **options)
# FileUtils.mv(list, dir, **options)
# FileUtils.rm(list, **options)
# FileUtils.rm_r(list, **options)
# FileUtils.rm_rf(list, **options)
# FileUtils.install(src, dest, **options)
# FileUtils.chmod(mode, list, **options)
# FileUtils.chmod_R(mode, list, **options)
# FileUtils.chown(user, group, list, **options)
# FileUtils.chown_R(user, group, list, **options)
# FileUtils.touch(list, **options)
#
# The <tt>options</tt> parameter is a hash of options, taken from the list
# <tt>:force</tt>, <tt>:noop</tt>, <tt>:preserve</tt>, and <tt>:verbose</tt>.
# <tt>:noop</tt> means that no changes are made. The other three are obvious.
# Each method documents the options that it honours.
# Possible <tt>options</tt> are:
#
# <tt>:force</tt> :: forced operation (rewrite files if exist, remove
# directories if not empty, etc.);
# <tt>:verbose</tt> :: print command to be run, in bash syntax, before
# performing it;
# <tt>:preserve</tt> :: preserve object's group, user and modification
# time on copying;
# <tt>:noop</tt> :: no changes are made (usable in combination with
# <tt>:verbose</tt> which will print the command to run)
#
# Each method documents the options that it honours. See also ::commands,
# ::options and ::options_of methods to introspect which command have which
# options.
#
# All methods that have the concept of a "source" file or directory can take
# either one file or a list of files in that argument. See the method
# documentation for examples.
#
# There are some `low level' methods, which do not accept any option:
# There are some `low level' methods, which do not accept keyword arguments:
#
# FileUtils.copy_entry(src, dest, preserve = false, dereference_root = false, remove_destination = false)
# FileUtils.copy_file(src, dest, preserve = false, dereference = true)
Expand Down Expand Up @@ -119,7 +129,7 @@ def pwd
#
# FileUtils.cd('/') # change directory
#
# FileUtils.cd('/', :verbose => true) # change directory and report it
# FileUtils.cd('/', verbose: true) # change directory and report it
#
# FileUtils.cd('/') do # change directory
# # ... # do something
Expand Down Expand Up @@ -164,9 +174,9 @@ def remove_trailing_slash(dir) #:nodoc:
# Creates one or more directories.
#
# FileUtils.mkdir 'test'
# FileUtils.mkdir %w( tmp data )
# FileUtils.mkdir 'notexist', :noop => true # Does not really create.
# FileUtils.mkdir 'tmp', :mode => 0700
# FileUtils.mkdir %w(tmp data)
# FileUtils.mkdir 'notexist', noop: true # Does not really create.
# FileUtils.mkdir 'tmp', mode: 0700
#
def mkdir(list, mode: nil, noop: nil, verbose: nil)
list = fu_list(list)
Expand All @@ -185,7 +195,7 @@ def mkdir(list, mode: nil, noop: nil, verbose: nil)
#
# FileUtils.mkdir_p '/usr/local/lib/ruby'
#
# causes to make following directories, if it does not exist.
# causes to make following directories, if they do not exist.
#
# * /usr
# * /usr/local
Expand Down Expand Up @@ -249,7 +259,7 @@ def fu_mkdir(path, mode) #:nodoc:
# FileUtils.rmdir 'somedir'
# FileUtils.rmdir %w(somedir anydir otherdir)
# # Does not really remove directory; outputs message.
# FileUtils.rmdir 'somedir', :verbose => true, :noop => true
# FileUtils.rmdir 'somedir', verbose: true, noop: true
#
def rmdir(list, parents: nil, noop: nil, verbose: nil)
list = fu_list(list)
Expand Down Expand Up @@ -278,7 +288,7 @@ def rmdir(list, parents: nil, noop: nil, verbose: nil)
#
# In the first form, creates a hard link +link+ which points to +target+.
# If +link+ already exists, raises Errno::EEXIST.
# But if the :force option is set, overwrites +link+.
# But if the +force+ option is set, overwrites +link+.
#
# FileUtils.ln 'gcc', 'cc', verbose: true
# FileUtils.ln '/usr/bin/emacs21', '/usr/bin/emacs'
Expand All @@ -304,23 +314,23 @@ def ln(src, dest, force: nil, noop: nil, verbose: nil)
alias link ln
module_function :link

#
# :call-seq:
# FileUtils.cp_lr(src, dest, noop: nil, verbose: nil, dereference_root: true, remove_destination: false)
#
# Hard link +src+ to +dest+. If +src+ is a directory, this method links
# all its contents recursively. If +dest+ is a directory, links
# +src+ to +dest/src+.
#
# +src+ can be a list of files.
#
# # Installing the library "mylib" under the site_ruby directory.
# FileUtils.rm_r site_ruby + '/mylib', :force => true
# If +dereference_root+ is true, this method dereference tree root.
#
# If +remove_destination+ is true, this method removes each destination file before copy.
#
# FileUtils.rm_r site_ruby + '/mylib', force: true
# FileUtils.cp_lr 'lib/', site_ruby + '/mylib'
#
# # Examples of linking several files to target directory.
# FileUtils.cp_lr %w(mail.rb field.rb debug/), site_ruby + '/tmail'
# FileUtils.cp_lr Dir.glob('*.rb'), '/home/aamine/lib/ruby', :noop => true, :verbose => true
# FileUtils.cp_lr Dir.glob('*.rb'), '/home/aamine/lib/ruby', noop: true, verbose: true
#
# # If you want to link all contents of a directory instead of the
# # directory itself, c.f. src/x -> dest/x, src/y -> dest/y,
Expand All @@ -345,7 +355,7 @@ def cp_lr(src, dest, noop: nil, verbose: nil,
#
# In the first form, creates a symbolic link +link+ which points to +target+.
# If +link+ already exists, raises Errno::EEXIST.
# But if the :force option is set, overwrites +link+.
# But if the <tt>force</tt> option is set, overwrites +link+.
#
# FileUtils.ln_s '/usr/bin/ruby', '/usr/local/bin/ruby'
# FileUtils.ln_s 'verylongsourcefilename.c', 'c', force: true
Expand Down Expand Up @@ -411,7 +421,7 @@ def link_entry(src, dest, dereference_root = false, remove_destination = false)
#
# FileUtils.cp 'eval.c', 'eval.c.org'
# FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6'
# FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6', :verbose => true
# FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6', verbose: true
# FileUtils.cp 'symlink', 'dest' # copy content, "dest" is not a symlink
#
def cp(src, dest, preserve: nil, noop: nil, verbose: nil)
Expand All @@ -433,13 +443,17 @@ def cp(src, dest, preserve: nil, noop: nil, verbose: nil)
#
# +src+ can be a list of files.
#
# If +dereference_root+ is true, this method dereference tree root.
#
# If +remove_destination+ is true, this method removes each destination file before copy.
#
# # Installing Ruby library "mylib" under the site_ruby
# FileUtils.rm_r site_ruby + '/mylib', :force
# FileUtils.rm_r site_ruby + '/mylib', force: true
# FileUtils.cp_r 'lib/', site_ruby + '/mylib'
#
# # Examples of copying several files to target directory.
# FileUtils.cp_r %w(mail.rb field.rb debug/), site_ruby + '/tmail'
# FileUtils.cp_r Dir.glob('*.rb'), '/home/foo/lib/ruby', :noop => true, :verbose => true
# FileUtils.cp_r Dir.glob('*.rb'), '/home/foo/lib/ruby', noop: true, verbose: true
#
# # If you want to copy all contents of a directory instead of the
# # directory itself, c.f. src/x -> dest/x, src/y -> dest/y,
Expand Down Expand Up @@ -511,10 +525,10 @@ def copy_stream(src, dest)
# disk partition, the file is copied then the original file is removed.
#
# FileUtils.mv 'badname.rb', 'goodname.rb'
# FileUtils.mv 'stuff.rb', '/notexist/lib/ruby', :force => true # no error
# FileUtils.mv 'stuff.rb', '/notexist/lib/ruby', force: true # no error
#
# FileUtils.mv %w(junk.txt dust.txt), '/home/foo/.trash/'
# FileUtils.mv Dir.glob('test*.rb'), 'test', :noop => true, :verbose => true
# FileUtils.mv Dir.glob('test*.rb'), 'test', noop: true, verbose: true
#
def mv(src, dest, force: nil, noop: nil, verbose: nil, secure: nil)
fu_output_message "mv#{force ? ' -f' : ''} #{[src,dest].flatten.join ' '}" if verbose
Expand Down Expand Up @@ -554,7 +568,7 @@ def mv(src, dest, force: nil, noop: nil, verbose: nil, secure: nil)
#
# FileUtils.rm %w( junk.txt dust.txt )
# FileUtils.rm Dir.glob('*.so')
# FileUtils.rm 'NotExistFile', :force => true # never raises exception
# FileUtils.rm 'NotExistFile', force: true # never raises exception
#
def rm(list, force: nil, noop: nil, verbose: nil)
list = fu_list(list)
Expand All @@ -573,7 +587,7 @@ def rm(list, force: nil, noop: nil, verbose: nil)
#
# Equivalent to
#
# FileUtils.rm(list, :force => true)
# FileUtils.rm(list, force: true)
#
def rm_f(list, noop: nil, verbose: nil)
rm list, force: true, noop: noop, verbose: verbose
Expand All @@ -589,18 +603,18 @@ def rm_f(list, noop: nil, verbose: nil)
# StandardError when :force option is set.
#
# FileUtils.rm_r Dir.glob('/tmp/*')
# FileUtils.rm_r 'some_dir', :force => true
# FileUtils.rm_r 'some_dir', force: true
#
# WARNING: This method causes local vulnerability
# if one of parent directories or removing directory tree are world
# writable (including /tmp, whose permission is 1777), and the current
# process has strong privilege such as Unix super user (root), and the
# system has symbolic link. For secure removing, read the documentation
# of #remove_entry_secure carefully, and set :secure option to true.
# Default is :secure=>false.
# of remove_entry_secure carefully, and set :secure option to true.
# Default is <tt>secure: false</tt>.
#
# NOTE: This method calls #remove_entry_secure if :secure option is set.
# See also #remove_entry_secure.
# NOTE: This method calls remove_entry_secure if :secure option is set.
# See also remove_entry_secure.
#
def rm_r(list, force: nil, noop: nil, verbose: nil, secure: nil)
list = fu_list(list)
Expand All @@ -619,10 +633,10 @@ def rm_r(list, force: nil, noop: nil, verbose: nil, secure: nil)
#
# Equivalent to
#
# FileUtils.rm_r(list, :force => true)
# FileUtils.rm_r(list, force: true)
#
# WARNING: This method causes local vulnerability.
# Read the documentation of #rm_r first.
# Read the documentation of rm_r first.
#
def rm_rf(list, noop: nil, verbose: nil, secure: nil)
rm_r list, force: true, noop: noop, verbose: verbose, secure: secure
Expand All @@ -636,7 +650,7 @@ def rm_rf(list, noop: nil, verbose: nil, secure: nil)
# This method removes a file system entry +path+. +path+ shall be a
# regular file, a directory, or something. If +path+ is a directory,
# remove it recursively. This method is required to avoid TOCTTOU
# (time-of-check-to-time-of-use) local security vulnerability of #rm_r.
# (time-of-check-to-time-of-use) local security vulnerability of rm_r.
# #rm_r causes security hole when:
#
# * Parent directory is world writable (including /tmp).
Expand Down Expand Up @@ -755,7 +769,7 @@ def fu_stat_identical_entry?(a, b) #:nodoc:
# +path+ might be a regular file, a directory, or something.
# If +path+ is a directory, remove it recursively.
#
# See also #remove_entry_secure.
# See also remove_entry_secure.
#
def remove_entry(path, force = false)
Entry_.new(path).postorder_traverse do |ent|
Expand Down Expand Up @@ -839,8 +853,8 @@ def compare_stream(a, b)
# mode to +mode+. If +dest+ is a directory, destination is +dest+/+src+.
# This method removes destination before copy.
#
# FileUtils.install 'ruby', '/usr/local/bin/ruby', :mode => 0755, :verbose => true
# FileUtils.install 'lib.rb', '/usr/local/lib/ruby/site_ruby', :verbose => true
# FileUtils.install 'ruby', '/usr/local/bin/ruby', mode: 0755, verbose: true
# FileUtils.install 'lib.rb', '/usr/local/lib/ruby/site_ruby', verbose: true
#
def install(src, dest, mode: nil, owner: nil, group: nil, preserve: nil,
noop: nil, verbose: nil)
Expand Down Expand Up @@ -970,12 +984,12 @@ def mode_to_s(mode) #:nodoc:
# Absolute mode is
# FileUtils.chmod 0755, 'somecommand'
# FileUtils.chmod 0644, %w(my.rb your.rb his.rb her.rb)
# FileUtils.chmod 0755, '/usr/bin/ruby', :verbose => true
# FileUtils.chmod 0755, '/usr/bin/ruby', verbose: true
#
# Symbolic mode is
# FileUtils.chmod "u=wrx,go=rx", 'somecommand'
# FileUtils.chmod "u=wr,go=rr", %w(my.rb your.rb his.rb her.rb)
# FileUtils.chmod "u=wrx,go=rx", '/usr/bin/ruby', :verbose => true
# FileUtils.chmod "u=wrx,go=rx", '/usr/bin/ruby', verbose: true
#
# "a" :: is user, group, other mask.
# "u" :: is user's mask.
Expand Down Expand Up @@ -1035,7 +1049,7 @@ def chmod_R(mode, list, noop: nil, verbose: nil, force: nil)
# the attribute.
#
# FileUtils.chown 'root', 'staff', '/usr/local/bin/ruby'
# FileUtils.chown nil, 'bin', Dir.glob('/usr/bin/*'), :verbose => true
# FileUtils.chown nil, 'bin', Dir.glob('/usr/bin/*'), verbose: true
#
def chown(user, group, list, noop: nil, verbose: nil)
list = fu_list(list)
Expand All @@ -1059,7 +1073,7 @@ def chown(user, group, list, noop: nil, verbose: nil)
# method does not change the attribute.
#
# FileUtils.chown_R 'www', 'www', '/var/www/htdocs'
# FileUtils.chown_R 'cvs', 'cvs', '/var/cvs', :verbose => true
# FileUtils.chown_R 'cvs', 'cvs', '/var/cvs', verbose: true
#
def chown_R(user, group, list, noop: nil, verbose: nil, force: nil)
list = fu_list(list)
Expand Down Expand Up @@ -1608,8 +1622,11 @@ def fu_output_message(msg) #:nodoc:
tbl
}

public

#
# Returns an Array of method names which have any options.
# Returns an Array of names of high-level methods that accept any keyword
# arguments.
#
# p FileUtils.commands #=> ["chmod", "cp", "cp_r", "install", ...]
#
Expand Down Expand Up @@ -1648,22 +1665,24 @@ def self.options_of(mid)
end

#
# Returns an Array of method names which have the option +opt+.
# Returns an Array of methods names which have the option +opt+.
#
# p FileUtils.collect_method(:preserve) #=> ["cp", "cp_r", "copy", "install"]
#
def self.collect_method(opt)
OPT_TABLE.keys.select {|m| OPT_TABLE[m].include?(opt) }
end

LOW_METHODS = singleton_methods(false) - collect_method(:noop).map(&:intern)
module LowMethods
private

LOW_METHODS = singleton_methods(false) - collect_method(:noop).map(&:intern) # :nodoc:
module LowMethods # :nodoc: internal use only
private
def _do_nothing(*)end
::FileUtils::LOW_METHODS.map {|name| alias_method name, :_do_nothing}
end

METHODS = singleton_methods() - [:private_module_function,
METHODS = singleton_methods() - [:private_module_function, # :nodoc:
:commands, :options, :have_option?, :options_of, :collect_method]

#
Expand Down

0 comments on commit 366dd9d

Please sign in to comment.