In Files
- fileutils.rb
Namespace
- MODULE FileUtils::DryRun
- MODULE FileUtils::LowMethods
- MODULE FileUtils::NoWrite
- MODULE FileUtils::StreamUtils_
- MODULE FileUtils::Verbose
- CLASS FileUtils::Entry_
Methods
- ::cd
- ::chdir
- ::chmod
- ::chmod_R
- ::chown
- ::chown_R
- ::cmp
- ::compare_file
- ::compare_stream
- ::copy
- ::copy_entry
- ::copy_file
- ::copy_stream
- ::cp
- ::cp_r
- ::getwd
- ::identical?
- ::install
- ::link
- ::ln
- ::ln_s
- ::ln_sf
- ::makedirs
- ::mkdir
- ::mkdir_p
- ::mkpath
- ::move
- ::mv
- ::pwd
- ::remove
- ::remove_dir
- ::remove_entry
- ::remove_entry_secure
- ::remove_file
- ::rm
- ::rm_f
- ::rm_r
- ::rm_rf
- ::rmdir
- ::rmtree
- ::safe_unlink
- ::symlink
- ::touch
- ::uptodate?
- #apply_mask
- #remove_trailing_slash
Included Modules
![[+]](http://ruby-doc.org/./images/find.png "show/hide quicksearch"){kind=small}
FileUtils
fileutils.rb¶ ↑
Copyright © 2000-2007 Minero Aoki
This program is free software. You can distribute/modify this program under the same terms of ruby.
module FileUtils¶ ↑
Namespace for several file utility methods for copying, moving, removing, etc.
Module Functions¶ ↑
require 'fileutils' FileUtils.cd(dir, options) FileUtils.cd(dir, options) {|dir| .... } 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(old, new, options) FileUtils.ln(list, destdir, options) FileUtils.ln_s(old, new, options) FileUtils.ln_s(list, destdir, options) FileUtils.ln_sf(src, dest, 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, mode = <src's>, 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 options parameter is a hash of options, taken from the list :force, :noop, :preserve, and :verbose. :noop means that no changes are made. The other two are obvious. Each method documents the options that it honours.
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:
FileUtils.copy_entry(src, dest, preserve = false, dereference = false) FileUtils.copy_file(src, dest, preserve = false, dereference = true) FileUtils.copy_stream(srcstream, deststream) FileUtils.remove_entry(path, force = false) FileUtils.remove_entry_secure(path, force = false) FileUtils.remove_file(path, force = false) FileUtils.compare_file(path_a, path_b) FileUtils.compare_stream(stream_a, stream_b) FileUtils.uptodate?(file, cmp_list)
module FileUtils::Verbose¶ ↑
This module has all methods of FileUtils module, but it outputs messages before acting. This equates to passing the :verbose flag to methods in FileUtils.
module FileUtils::NoWrite¶ ↑
This module has all methods of FileUtils module, but never changes files/directories. This equates to passing the :noop flag to methods in FileUtils.
module FileUtils::DryRun¶ ↑
This module has all methods of FileUtils module, but never changes files/directories. This equates to passing the :noop and :verbose flags to methods in FileUtils.
Constants
Public Class Methods
Options: verbose
Changes the current directory to the directory dir.
If this method is called with block, resumes to the old working directory after the block execution finished.
FileUtils.cd('/', :verbose => true) # chdir and report it FileUtils.cd('/') do # chdir [...] # do something end # return to original directory # File fileutils.rb, line 124 def cd(dir, options = {}, &block) # :yield: dir fu_check_options options, OPT_TABLE['cd'] fu_output_message "cd #{dir}" if options[:verbose] Dir.chdir(dir, &block) fu_output_message 'cd -' if options[:verbose] and block end
Options: noop verbose
Changes permission bits on the named files (in list) to the bit pattern represented by mode.
mode is the symbolic and absolute mode can be used.
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
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
- “a”
-
is user, group, other mask.
- “u”
-
is user's mask.
- “g”
-
is group's mask.
- “o”
-
is other's mask.
- “w”
-
is write permission.
- “r”
-
is read permission.
- “x”
-
is execute permission.
- “X”
-
is execute permission for directories only, must be used in conjunction with “+”
- “s”
-
is uid, gid.
- “t”
-
is sticky bit.
- “+”
-
is added to a class given the specified mode.
- “-”
-
Is removed from a given class given mode.
- “=”
-
Is the exact nature of the class will be given a specified mode.
# File fileutils.rb, line 993 def chmod(mode, list, options = {}) fu_check_options options, OPT_TABLE['chmod'] list = fu_list(list) fu_output_message sprintf('chmod %s %s', mode_to_s(mode), list.join(' ')) if options[:verbose] return if options[:noop] list.each do |path| Entry_.new(path).chmod(fu_mode(mode, path)) end end
Options: noop verbose force
Changes permission bits on the named files (in list) to the bit pattern represented by mode.
FileUtils.chmod_R 0700, "/tmp/app.#{$$}" FileUtils.chmod_R "u=wrx", "/tmp/app.#{$$}"
# File fileutils.rb, line 1015 def chmod_R(mode, list, options = {}) fu_check_options options, OPT_TABLE['chmod_R'] list = fu_list(list) fu_output_message sprintf('chmod -R%s %s %s', (options[:force] ? 'f' : ''), mode_to_s(mode), list.join(' ')) if options[:verbose] return if options[:noop] list.each do |root| Entry_.new(root).traverse do |ent| begin ent.chmod(fu_mode(mode, ent.path)) rescue raise unless options[:force] end end end end
Options: noop verbose
Changes owner and group on the named files (in list) to the user user and the group group. user and group may be an ID (Integer/String) or a name (String). If user or group is nil, this method does not change the attribute.
FileUtils.chown 'root', 'staff', '/usr/local/bin/ruby' FileUtils.chown nil, 'bin', Dir.glob('/usr/bin/*'), :verbose => true
# File fileutils.rb, line 1048 def chown(user, group, list, options = {}) fu_check_options options, OPT_TABLE['chown'] list = fu_list(list) fu_output_message sprintf('chown %s %s', (group ? "#{user}:#{group}" : user || ':'), list.join(' ')) if options[:verbose] return if options[:noop] uid = fu_get_uid(user) gid = fu_get_gid(group) list.each do |path| Entry_.new(path).chown uid, gid end end
Options: noop verbose force
Changes owner and group on the named files (in list) to the user user and the group group recursively. user and group may be an ID (Integer/String) or a name (String). If user or group is nil, this method does not change the attribute.
FileUtils.chown_R 'www', 'www', '/var/www/htdocs' FileUtils.chown_R 'cvs', 'cvs', '/var/cvs', :verbose => true
# File fileutils.rb, line 1077 def chown_R(user, group, list, options = {}) fu_check_options options, OPT_TABLE['chown_R'] list = fu_list(list) fu_output_message sprintf('chown -R%s %s %s', (options[:force] ? 'f' : ''), (group ? "#{user}:#{group}" : user || ':'), list.join(' ')) if options[:verbose] return if options[:noop] uid = fu_get_uid(user) gid = fu_get_gid(group) list.each do |root| Entry_.new(root).traverse do |ent| begin ent.chown uid, gid rescue raise unless options[:force] end end end end
Returns true if the contents of a file A and a file B are identical.
FileUtils.compare_file('somefile', 'somefile') #=> true FileUtils.compare_file('/bin/cp', '/bin/mv') #=> maybe false
# File fileutils.rb, line 814 def compare_file(a, b) return false unless File.size(a) == File.size(b) File.open(a, 'rb') {|fa| File.open(b, 'rb') {|fb| return compare_stream(fa, fb) } } end
Returns true if the contents of a stream a and b are identical.
# File fileutils.rb, line 832 def compare_stream(a, b) bsize = fu_stream_blksize(a, b) sa = "" sb = "" begin a.read(bsize, sa) b.read(bsize, sb) return true if sa.empty? && sb.empty? end while sa == sb false end
Copies a file system entry src to dest. If src is a directory, this method copies its contents recursively. This method preserves file types, c.f. symlink, directory… (FIFO, device files and etc. are not supported yet)
Both of src and dest must be a path name. src must exist, dest must not exist.
If preserve is true, this method preserves owner, group, and modified time. Permissions are copied regardless preserve.
If dereference_root is true, this method dereference tree root.
If remove_destination is true, this method removes each destination file before copy.
# File fileutils.rb, line 467 def copy_entry(src, dest, preserve = false, dereference_root = false, remove_destination = false) Entry_.new(src, nil, dereference_root).wrap_traverse(proc do |ent| destent = Entry_.new(dest, ent.rel, false) File.unlink destent.path if remove_destination && File.file?(destent.path) ent.copy destent.path end, proc do |ent| destent = Entry_.new(dest, ent.rel, false) ent.copy_metadata destent.path if preserve end) end
Copies file contents of src to dest. Both of src and dest must be a path name.
# File fileutils.rb, line 483 def copy_file(src, dest, preserve = false, dereference = true) ent = Entry_.new(src, nil, dereference) ent.copy_file dest ent.copy_metadata dest if preserve end
Copies stream src to dest. src must respond to read(n) and dest must respond to write(str).
# File fileutils.rb, line 495 def copy_stream(src, dest) IO.copy_stream(src, dest) end
Options: preserve noop verbose
Copies a file content src to dest. If dest is a directory, copies src to dest/src.
If src is a list of files, then dest must be a directory.
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 'symlink', 'dest' # copy content, "dest" is not a symlink
# File fileutils.rb, line 397 def cp(src, dest, options = {}) fu_check_options options, OPT_TABLE['cp'] fu_output_message "cp#{options[:preserve] ? ' -p' : ''} #{[src,dest].flatten.join ' '}" if options[:verbose] return if options[:noop] fu_each_src_dest(src, dest) do |s, d| copy_file s, d, options[:preserve] end end
Options: preserve noop verbose dereference_root remove_destination
Copies src to dest. If src is a directory, this method copies all its contents recursively. If dest is a directory, copies src to dest/src.
src can be a list of files.
# Installing Ruby library "mylib" under the site_ruby FileUtils.rm_r site_ruby + '/mylib', :force 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/aamine/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, # use following code. FileUtils.cp_r 'src/.', 'dest' # cp_r('src', 'dest') makes dest/src, # but this doesn't.
# File fileutils.rb, line 436 def cp_r(src, dest, options = {}) fu_check_options options, OPT_TABLE['cp_r'] fu_output_message "cp -r#{options[:preserve] ? 'p' : ''}#{options[:remove_destination] ? ' --remove-destination' : ''} #{[src,dest].flatten.join ' '}" if options[:verbose] return if options[:noop] options = options.dup options[:dereference_root] = true unless options.key?(:dereference_root) fu_each_src_dest(src, dest) do |s, d| copy_entry s, d, options[:preserve], options[:dereference_root], options[:remove_destination] end end
Options: mode preserve noop verbose
If src is not same as dest, copies it and changes the permission 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
# File fileutils.rb, line 855 def install(src, dest, options = {}) fu_check_options options, OPT_TABLE['install'] fu_output_message "install -c#{options[:preserve] && ' -p'}#{options[:mode] ? (' -m 0%o' % options[:mode]) : ''} #{[src,dest].flatten.join ' '}" if options[:verbose] return if options[:noop] fu_each_src_dest(src, dest) do |s, d| st = File.stat(s) unless File.exist?(d) and compare_file(s, d) remove_file d, true copy_file s, d File.utime st.atime, st.mtime, d if options[:preserve] File.chmod options[:mode], d if options[:mode] end end end
Options: force noop verbose
ln(old, new, options = {})
Creates a hard link new which points to old. If new already exists and it is a directory, creates a link new/old. If new already exists and it is not a directory, raises Errno::EEXIST. But if :force option is set, overwrite new.
FileUtils.ln 'gcc', 'cc', :verbose => true FileUtils.ln '/usr/bin/emacs21', '/usr/bin/emacs'
ln(list, destdir, options = {})
Creates several hard links in a directory, with each one pointing to the item in list. If destdir is not a directory, raises Errno::ENOTDIR.
include FileUtils cd '/sbin' FileUtils.ln %w(cp mv mkdir), '/bin' # Now /sbin/cp and /bin/cp are linked.
# File fileutils.rb, line 312 def ln(src, dest, options = {}) fu_check_options options, OPT_TABLE['ln'] fu_output_message "ln#{options[:force] ? ' -f' : ''} #{[src,dest].flatten.join ' '}" if options[:verbose] return if options[:noop] fu_each_src_dest0(src, dest) do |s,d| remove_file d, true if options[:force] File.link s, d end end
Options: force noop verbose
ln_s(old, new, options = {})
Creates a symbolic link new which points to old. If new already exists and it is a directory, creates a symbolic link new/old. If new already exists and it is not a directory, raises Errno::EEXIST. But if :force option is set, overwrite new.
FileUtils.ln_s '/usr/bin/ruby', '/usr/local/bin/ruby' FileUtils.ln_s 'verylongsourcefilename.c', 'c', :force => true
ln_s(list, destdir, options = {})
Creates several symbolic links in a directory, with each one pointing to the item in list. If destdir is not a directory, raises Errno::ENOTDIR.
If destdir is not a directory, raises Errno::ENOTDIR.
FileUtils.ln_s Dir.glob('bin/*.rb'), '/home/aamine/bin'
# File fileutils.rb, line 351 def ln_s(src, dest, options = {}) fu_check_options options, OPT_TABLE['ln_s'] fu_output_message "ln -s#{options[:force] ? 'f' : ''} #{[src,dest].flatten.join ' '}" if options[:verbose] return if options[:noop] fu_each_src_dest0(src, dest) do |s,d| remove_file d, true if options[:force] File.symlink s, d end end
Options: noop verbose
Same as
#ln_s(src, dest, :force => true) # File fileutils.rb, line 374 def ln_sf(src, dest, options = {}) fu_check_options options, OPT_TABLE['ln_sf'] options = options.dup options[:force] = true ln_s src, dest, options end
Options: mode noop verbose
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
# File fileutils.rb, line 174 def mkdir(list, options = {}) fu_check_options options, OPT_TABLE['mkdir'] list = fu_list(list) fu_output_message "mkdir #{options[:mode] ? ('-m %03o ' % options[:mode]) : ''}#{list.join ' '}" if options[:verbose] return if options[:noop] list.each do |dir| fu_mkdir dir, options[:mode] end end
Options: mode noop verbose
Creates a directory and all its parent directories. For example,
FileUtils.mkdir_p '/usr/local/lib/ruby'
causes to make following directories, if it does not exist.
* /usr * /usr/local * /usr/local/lib * /usr/local/lib/ruby
You can pass several directories at a time in a list.
# File fileutils.rb, line 204 def mkdir_p(list, options = {}) fu_check_options options, OPT_TABLE['mkdir_p'] list = fu_list(list) fu_output_message "mkdir -p #{options[:mode] ? ('-m %03o ' % options[:mode]) : ''}#{list.join ' '}" if options[:verbose] return *list if options[:noop] list.map {|path| remove_trailing_slash(path)}.each do |path| # optimize for the most common case begin fu_mkdir path, options[:mode] next rescue SystemCallError next if File.directory?(path) end stack = [] until path == stack.last # dirname("/")=="/", dirname("C:/")=="C:/" stack.push path path = File.dirname(path) end stack.reverse_each do |dir| begin fu_mkdir dir, options[:mode] rescue SystemCallError raise unless File.directory?(dir) end end end return *list end
Options: force noop verbose
Moves file(s) src to dest. If file and dest exist on the different 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 %w(junk.txt dust.txt), '/home/aamine/.trash/' FileUtils.mv Dir.glob('test*.rb'), 'test', :noop => true, :verbose => true
# File fileutils.rb, line 512 def mv(src, dest, options = {}) fu_check_options options, OPT_TABLE['mv'] fu_output_message "mv#{options[:force] ? ' -f' : ''} #{[src,dest].flatten.join ' '}" if options[:verbose] return if options[:noop] fu_each_src_dest(src, dest) do |s, d| destent = Entry_.new(d, nil, true) begin if destent.exist? if destent.directory? raise Errno::EEXIST, d else destent.remove_file if rename_cannot_overwrite_file? end end begin File.rename s, d rescue Errno::EXDEV copy_entry s, d, true if options[:secure] remove_entry_secure s, options[:force] else remove_entry s, options[:force] end end rescue SystemCallError raise unless options[:force] end end end
Options: (none)
Returns the name of the current directory.
# File fileutils.rb, line 102 def pwd Dir.pwd end
Removes a directory dir and its contents recursively. This method ignores StandardError if force is true.
# File fileutils.rb, line 803 def remove_dir(path, force = false) remove_entry path, force # FIXME?? check if it is a directory end
This method removes a file system entry path. path might be a regular file, a directory, or something. If path is a directory, remove it recursively.
See also remove_entry_secure.
# File fileutils.rb, line 775 def remove_entry(path, force = false) Entry_.new(path).postorder_traverse do |ent| begin ent.remove rescue raise unless force end end rescue raise unless force end
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. rm_r causes security hole when:
* Parent directory is world writable (including /tmp). * Removing directory tree includes world writable directory. * The system has symbolic link.
To avoid this security hole, this method applies special preprocess. If path is a directory, this method chown(2) and chmod(2) all removing directories. This requires the current process is the owner of the removing whole directory tree, or is the super user (root).
WARNING: You must ensure that ALL parent directories cannot be moved by other untrusted users. For example, parent directories should not be owned by untrusted users, and should not be world writable except when the sticky bit set.
WARNING: Only the owner of the removing directory tree, or Unix super user (root) should invoke this method. Otherwise this method does not work.
For details of this security vulnerability, see Perl's case:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0448 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0452
For fileutils.rb, this vulnerability is reported in [ruby-dev:26100].
# File fileutils.rb, line 698 def remove_entry_secure(path, force = false) unless fu_have_symlink? remove_entry path, force return end fullpath = File.expand_path(path) st = File.lstat(fullpath) unless st.directory? File.unlink fullpath return end # is a directory. parent_st = File.stat(File.dirname(fullpath)) unless parent_st.world_writable? remove_entry path, force return end unless parent_st.sticky? raise ArgumentError, "parent directory is world writable, FileUtils#remove_entry_secure does not work; abort: #{path.inspect} (parent directory mode #{'%o' % parent_st.mode})" end # freeze tree root euid = Process.euid File.open(fullpath + '/.') {|f| unless fu_stat_identical_entry?(st, f.stat) # symlink (TOC-to-TOU attack?) File.unlink fullpath return end f.chown euid, -1 f.chmod 0700 unless fu_stat_identical_entry?(st, File.lstat(fullpath)) # TOC-to-TOU attack? File.unlink fullpath return end } # ---- tree root is frozen ---- root = Entry_.new(path) root.preorder_traverse do |ent| if ent.directory? ent.chown euid, -1 ent.chmod 0700 end end root.postorder_traverse do |ent| begin ent.remove rescue raise unless force end end rescue raise unless force end
Removes a file path. This method ignores StandardError if force is true.
# File fileutils.rb, line 792 def remove_file(path, force = false) Entry_.new(path).remove_file rescue raise unless force end
Options: force noop verbose
Remove file(s) specified in list. This method cannot remove directories. All StandardErrors are ignored when the :force option is set.
FileUtils.rm %w( junk.txt dust.txt ) FileUtils.rm Dir.glob('*.so') FileUtils.rm 'NotExistFile', :force => true # never raises exception
# File fileutils.rb, line 564 def rm(list, options = {}) fu_check_options options, OPT_TABLE['rm'] list = fu_list(list) fu_output_message "rm#{options[:force] ? ' -f' : ''} #{list.join ' '}" if options[:verbose] return if options[:noop] list.each do |path| remove_file path, options[:force] end end
Options: noop verbose
Equivalent to
#rm(list, :force => true) # File fileutils.rb, line 589 def rm_f(list, options = {}) fu_check_options options, OPT_TABLE['rm_f'] options = options.dup options[:force] = true rm list, options end
Options: force noop verbose secure
remove files list[0] list[1]… If list[n] is a directory, removes its all contents recursively. This method ignores StandardError when :force option is set.
FileUtils.rm_r Dir.glob('/tmp/*') FileUtils.rm_r '/', :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.
NOTE: This method calls remove_entry_secure if :secure option is set. See also remove_entry_secure.
# File fileutils.rb, line 624 def rm_r(list, options = {}) fu_check_options options, OPT_TABLE['rm_r'] # options[:secure] = true unless options.key?(:secure) list = fu_list(list) fu_output_message "rm -r#{options[:force] ? 'f' : ''} #{list.join ' '}" if options[:verbose] return if options[:noop] list.each do |path| if options[:secure] remove_entry_secure path, options[:force] else remove_entry path, options[:force] end end end
Options: noop verbose secure
Equivalent to
#rm_r(list, :force => true) WARNING: This method causes local vulnerability. Read the documentation of rm_r first.
# File fileutils.rb, line 652 def rm_rf(list, options = {}) fu_check_options options, OPT_TABLE['rm_rf'] options = options.dup options[:force] = true rm_r list, options end
Options: parents, noop, verbose
Removes one or more directories.
FileUtils.rmdir 'somedir' FileUtils.rmdir %w(somedir anydir otherdir) # Does not really remove directory; outputs message. FileUtils.rmdir 'somedir', :verbose => true, :noop => true
# File fileutils.rb, line 267 def rmdir(list, options = {}) fu_check_options options, OPT_TABLE['rmdir'] list = fu_list(list) parents = options[:parents] fu_output_message "rmdir #{parents ? '-p ' : ''}#{list.join ' '}" if options[:verbose] return if options[:noop] list.each do |dir| begin Dir.rmdir(dir = remove_trailing_slash(dir)) if parents until (parent = File.dirname(dir)) == '.' or parent == dir dir = parent Dir.rmdir(dir) end end rescue Errno::ENOTEMPTY, Errno::EEXIST, Errno::ENOENT end end end
Options: noop verbose mtime nocreate
Updates modification time (mtime) and access time (atime) of file(s) in list. Files are created if they don't exist.
FileUtils.touch 'timestamp' FileUtils.touch Dir.glob('*.c'); system 'make'
# File fileutils.rb, line 1141 def touch(list, options = {}) fu_check_options options, OPT_TABLE['touch'] list = fu_list(list) nocreate = options[:nocreate] t = options[:mtime] if options[:verbose] fu_output_message "touch #{nocreate ? '-c ' : ''}#{t ? t.strftime('-t %Y%m%d%H%M.%S ') : ''}#{list.join ' '}" end return if options[:noop] list.each do |path| created = nocreate begin File.utime(t, t, path) rescue Errno::ENOENT raise if created File.open(path, 'a') { ; } created = true retry if t end end end
Options: (none)
Returns true if new is newer than all old_list. Non-existent files are older than any file.
FileUtils.uptodate?('hello.o', %w(hello.c hello.h)) or \ system 'make hello.o'
# File fileutils.rb, line 147 def uptodate?(new, old_list) return false unless File.exist?(new) new_time = File.mtime(new) old_list.each do |old| if File.exist?(old) return false unless new_time > File.mtime(old) end end true end