frozen_string_literal: true
Copyright © 2000-2007 Minero Aoki
This program is free software. You can distribute/modify this program under the same terms of ruby.
Namespace for several file utility methods for copying, moving, removing, etc.
require 'bundler/vendor/fileutils/lib/fileutils' Bundler::FileUtils.cd(dir, options) Bundler::FileUtils.cd(dir, options) {|dir| block } Bundler::FileUtils.pwd() Bundler::FileUtils.mkdir(dir, options) Bundler::FileUtils.mkdir(list, options) Bundler::FileUtils.mkdir_p(dir, options) Bundler::FileUtils.mkdir_p(list, options) Bundler::FileUtils.rmdir(dir, options) Bundler::FileUtils.rmdir(list, options) Bundler::FileUtils.ln(target, link, options) Bundler::FileUtils.ln(targets, dir, options) Bundler::FileUtils.ln_s(target, link, options) Bundler::FileUtils.ln_s(targets, dir, options) Bundler::FileUtils.ln_sf(target, link, options) Bundler::FileUtils.cp(src, dest, options) Bundler::FileUtils.cp(list, dir, options) Bundler::FileUtils.cp_r(src, dest, options) Bundler::FileUtils.cp_r(list, dir, options) Bundler::FileUtils.mv(src, dest, options) Bundler::FileUtils.mv(list, dir, options) Bundler::FileUtils.rm(list, options) Bundler::FileUtils.rm_r(list, options) Bundler::FileUtils.rm_rf(list, options) Bundler::FileUtils.install(src, dest, options) Bundler::FileUtils.chmod(mode, list, options) Bundler::FileUtils.chmod_R(mode, list, options) Bundler::FileUtils.chown(user, group, list, options) Bundler::FileUtils.chown_R(user, group, list, options) Bundler::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 three 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:
Bundler::FileUtils.copy_entry(src, dest, preserve = false, dereference = false) Bundler::FileUtils.copy_file(src, dest, preserve = false, dereference = true) Bundler::FileUtils.copy_stream(srcstream, deststream) Bundler::FileUtils.remove_entry(path, force = false) Bundler::FileUtils.remove_entry_secure(path, force = false) Bundler::FileUtils.remove_file(path, force = false) Bundler::FileUtils.compare_file(path_a, path_b) Bundler::FileUtils.compare_stream(stream_a, stream_b) Bundler::FileUtils.uptodate?(file, cmp_list)
This module has all methods of Bundler::FileUtils module, but it outputs messages before acting. This equates to passing the :verbose flag to methods in Bundler::FileUtils.
This module has all methods of Bundler::FileUtils module, but never changes files/directories. This equates to passing the :noop flag to methods in Bundler::FileUtils.
This module has all methods of Bundler::FileUtils module, but never changes files/directories. This equates to passing the :noop and :verbose flags to methods in Bundler::FileUtils.
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.
Bundler::FileUtils.cd('/', :verbose => true) # chdir and report it Bundler::FileUtils.cd('/') do # chdir # ... # do something end # return to original directory
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 118 def cd(dir, verbose: nil, &block) # :yield: dir fu_output_message "cd #{dir}" if verbose Dir.chdir(dir, &block) fu_output_message 'cd -' if verbose and block end
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
Bundler::FileUtils.chmod 0755, 'somecommand' Bundler::FileUtils.chmod 0644, %w(my.rb your.rb his.rb her.rb) Bundler::FileUtils.chmod 0755, '/usr/bin/ruby', :verbose => true
Symbolic mode is
Bundler::FileUtils.chmod "u=wrx,go=rx", 'somecommand' Bundler::FileUtils.chmod "u=wr,go=rr", %w(my.rb your.rb his.rb her.rb) Bundler::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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 914 def chmod(mode, list, noop: nil, verbose: nil) list = fu_list(list) fu_output_message sprintf('chmod %s %s', mode_to_s(mode), list.join(' ')) if verbose return if noop list.each do |path| Entry_.new(path).chmod(fu_mode(mode, path)) end end
Changes permission bits on the named files (in list) to the bit pattern represented by mode.
Bundler::FileUtils.chmod_R 0700, "/tmp/app.#{$$}" Bundler::FileUtils.chmod_R "u=wrx", "/tmp/app.#{$$}"
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 931 def chmod_R(mode, list, noop: nil, verbose: nil, force: nil) list = fu_list(list) fu_output_message sprintf('chmod -R%s %s %s', (force ? 'f' : ''), mode_to_s(mode), list.join(' ')) if verbose return if noop list.each do |root| Entry_.new(root).traverse do |ent| begin ent.chmod(fu_mode(mode, ent.path)) rescue raise unless force end end end end
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.
Bundler::FileUtils.chown 'root', 'staff', '/usr/local/bin/ruby' Bundler::FileUtils.chown nil, 'bin', Dir.glob('/usr/bin/*'), :verbose => true
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 959 def chown(user, group, list, noop: nil, verbose: nil) list = fu_list(list) fu_output_message sprintf('chown %s %s', (group ? "#{user}:#{group}" : user || ':'), list.join(' ')) if verbose return if noop uid = fu_get_uid(user) gid = fu_get_gid(group) list.each do |path| Entry_.new(path).chown uid, gid end end
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.
Bundler::FileUtils.chown_R 'www', 'www', '/var/www/htdocs' Bundler::FileUtils.chown_R 'cvs', 'cvs', '/var/cvs', :verbose => true
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 983 def chown_R(user, group, list, noop: nil, verbose: nil, force: nil) list = fu_list(list) fu_output_message sprintf('chown -R%s %s %s', (force ? 'f' : ''), (group ? "#{user}:#{group}" : user || ':'), list.join(' ')) if verbose return if 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 force end end end end
Returns true if the contents of a file a and a file b are identical.
Bundler::FileUtils.compare_file('somefile', 'somefile') #=> true Bundler::FileUtils.compare_file('/dev/null', '/dev/urandom') #=> false
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 725 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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 743 def compare_stream(a, b) bsize = fu_stream_blksize(a, b) sa = String.new(capacity: bsize) sb = String.new(capacity: bsize) 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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 412 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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 428 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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 440 def copy_stream(src, dest) IO.copy_stream(src, dest) end
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.
Bundler::FileUtils.cp 'eval.c', 'eval.c.org' Bundler::FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6' Bundler::FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6', :verbose => true Bundler::FileUtils.cp 'symlink', 'dest' # copy content, "dest" is not a symlink
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 353 def cp(src, dest, preserve: nil, noop: nil, verbose: nil) fu_output_message "cp#{preserve ? ' -p' : ''} #{[src,dest].flatten.join ' '}" if verbose return if noop fu_each_src_dest(src, dest) do |s, d| copy_file s, d, preserve end end
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 Bundler::FileUtils.rm_r site_ruby + '/mylib', :force Bundler::FileUtils.cp_r 'lib/', site_ruby + '/mylib' # Examples of copying several files to target directory. Bundler::FileUtils.cp_r %w(mail.rb field.rb debug/), site_ruby + '/tmail' Bundler::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, # use following code. Bundler::FileUtils.cp_r 'src/.', 'dest' # cp_r('src', 'dest') makes dest/src, # but this doesn't.
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 386 def cp_r(src, dest, preserve: nil, noop: nil, verbose: nil, dereference_root: true, remove_destination: nil) fu_output_message "cp -r#{preserve ? 'p' : ''}#{remove_destination ? ' --remove-destination' : ''} #{[src,dest].flatten.join ' '}" if verbose return if noop fu_each_src_dest(src, dest) do |s, d| copy_entry s, d, preserve, dereference_root, remove_destination end end
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.
Bundler::FileUtils.install 'ruby', '/usr/local/bin/ruby', :mode => 0755, :verbose => true Bundler::FileUtils.install 'lib.rb', '/usr/local/lib/ruby/site_ruby', :verbose => true
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 764 def install(src, dest, mode: nil, owner: nil, group: nil, preserve: nil, noop: nil, verbose: nil) if verbose msg = +"install -c" msg << ' -p' if preserve msg << ' -m ' << mode_to_s(mode) if mode msg << " -o #{owner}" if owner msg << " -g #{group}" if group msg << ' ' << [src,dest].flatten.join(' ') fu_output_message msg end return if noop uid = fu_get_uid(owner) gid = fu_get_gid(group) 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 preserve File.chmod fu_mode(mode, st), d if mode File.chown uid, gid, d if uid or gid end end end
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.
Bundler::FileUtils.ln 'gcc', 'cc', verbose: true Bundler::FileUtils.ln '/usr/bin/emacs21', '/usr/bin/emacs'
In the second form, creates a link dir/target pointing to target. In the third form, creates several hard links in the directory dir, pointing to each item in targets. If dir is not a directory, raises Errno::ENOTDIR.
Bundler::FileUtils.cd '/sbin' Bundler::FileUtils.ln %w(cp mv mkdir), '/bin' # Now /sbin/cp and /bin/cp are linked.
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 283 def ln(src, dest, force: nil, noop: nil, verbose: nil) fu_output_message "ln#{force ? ' -f' : ''} #{[src,dest].flatten.join ' '}" if verbose return if noop fu_each_src_dest0(src, dest) do |s,d| remove_file d, true if force File.link s, d end end
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.
Bundler::FileUtils.ln_s '/usr/bin/ruby', '/usr/local/bin/ruby' Bundler::FileUtils.ln_s 'verylongsourcefilename.c', 'c', force: true
In the second form, creates a link dir/target pointing to target. In the third form, creates several symbolic links in the directory dir, pointing to each item in targets. If dir is not a directory, raises Errno::ENOTDIR.
Bundler::FileUtils.ln_s Dir.glob('/bin/*.rb'), '/home/foo/bin'
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 316 def ln_s(src, dest, force: nil, noop: nil, verbose: nil) fu_output_message "ln -s#{force ? 'f' : ''} #{[src,dest].flatten.join ' '}" if verbose return if noop fu_each_src_dest0(src, dest) do |s,d| remove_file d, true if force File.symlink s, d end end
Same as
Bundler::FileUtils.ln_s(*args, force: true)
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 337 def ln_sf(src, dest, noop: nil, verbose: nil) ln_s src, dest, force: true, noop: noop, verbose: verbose end
Creates one or more directories.
Bundler::FileUtils.mkdir 'test' Bundler::FileUtils.mkdir %w( tmp data ) Bundler::FileUtils.mkdir 'notexist', :noop => true # Does not really create. Bundler::FileUtils.mkdir 'tmp', :mode => 0700
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 160 def mkdir(list, mode: nil, noop: nil, verbose: nil) list = fu_list(list) fu_output_message "mkdir #{mode ? ('-m %03o ' % mode) : ''}#{list.join ' '}" if verbose return if noop list.each do |dir| fu_mkdir dir, mode end end
Creates a directory and all its parent directories. For example,
Bundler::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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 186 def mkdir_p(list, mode: nil, noop: nil, verbose: nil) list = fu_list(list) fu_output_message "mkdir -p #{mode ? ('-m %03o ' % mode) : ''}#{list.join ' '}" if verbose return *list if noop list.map {|path| remove_trailing_slash(path)}.each do |path| # optimize for the most common case begin fu_mkdir path, 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.pop # root directory should exist stack.reverse_each do |dir| begin fu_mkdir dir, mode rescue SystemCallError raise unless File.directory?(dir) end end end return *list end
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.
Bundler::FileUtils.mv 'badname.rb', 'goodname.rb' Bundler::FileUtils.mv 'stuff.rb', '/notexist/lib/ruby', :force => true # no error Bundler::FileUtils.mv %w(junk.txt dust.txt), '/home/foo/.trash/' Bundler::FileUtils.mv Dir.glob('test*.rb'), 'test', :noop => true, :verbose => true
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 455 def mv(src, dest, force: nil, noop: nil, verbose: nil, secure: nil) fu_output_message "mv#{force ? ' -f' : ''} #{[src,dest].flatten.join ' '}" if verbose return if 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 secure remove_entry_secure s, force else remove_entry s, force end end rescue SystemCallError raise unless force end end end
Returns the name of the current directory.
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 98 def pwd Dir.pwd end
Removes a directory dir and its contents recursively. This method ignores StandardError if force is true.
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 714 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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 686 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:
For fileutils.rb, this vulnerability is reported in [ruby-dev:26100].
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 609 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, Bundler::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 lib/bundler/vendor/fileutils/lib/fileutils.rb, line 703 def remove_file(path, force = false) Entry_.new(path).remove_file rescue raise unless force end
Remove file(s) specified in list. This method cannot remove directories. All StandardErrors are ignored when the :force option is set.
Bundler::FileUtils.rm %w( junk.txt dust.txt ) Bundler::FileUtils.rm Dir.glob('*.so') Bundler::FileUtils.rm 'NotExistFile', :force => true # never raises exception
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 501 def rm(list, force: nil, noop: nil, verbose: nil) list = fu_list(list) fu_output_message "rm#{force ? ' -f' : ''} #{list.join ' '}" if verbose return if noop list.each do |path| remove_file path, force end end
Equivalent to
Bundler::FileUtils.rm(list, :force => true)
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 520 def rm_f(list, noop: nil, verbose: nil) rm list, force: true, noop: noop, verbose: verbose end
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.
Bundler::FileUtils.rm_r Dir.glob('/tmp/*') Bundler::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.
NOTE: This method calls remove_entry_secure if :secure option is set. See also remove_entry_secure.
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 547 def rm_r(list, force: nil, noop: nil, verbose: nil, secure: nil) list = fu_list(list) fu_output_message "rm -r#{force ? 'f' : ''} #{list.join ' '}" if verbose return if noop list.each do |path| if secure remove_entry_secure path, force else remove_entry path, force end end end
Equivalent to
Bundler::FileUtils.rm_r(list, :force => true)
WARNING: This method causes local vulnerability. Read the documentation of rm_r first.
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 569 def rm_rf(list, noop: nil, verbose: nil, secure: nil) rm_r list, force: true, noop: noop, verbose: verbose, secure: secure end
Removes one or more directories.
Bundler::FileUtils.rmdir 'somedir' Bundler::FileUtils.rmdir %w(somedir anydir otherdir) # Does not really remove directory; outputs message. Bundler::FileUtils.rmdir 'somedir', :verbose => true, :noop => true
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 243 def rmdir(list, parents: nil, noop: nil, verbose: nil) list = fu_list(list) fu_output_message "rmdir #{parents ? '-p ' : ''}#{list.join ' '}" if verbose return if 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
Updates modification time (mtime) and access time (atime) of file(s) in list. Files are created if they don’t exist.
Bundler::FileUtils.touch 'timestamp' Bundler::FileUtils.touch Dir.glob('*.c'); system 'make'
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 1042 def touch(list, noop: nil, verbose: nil, mtime: nil, nocreate: nil) list = fu_list(list) t = mtime if verbose fu_output_message "touch #{nocreate ? '-c ' : ''}#{t ? t.strftime('-t %Y%m%d%H%M.%S ') : ''}#{list.join ' '}" end return if 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
Returns true if new is newer than all old_list. Non-existent files are older than any file.
Bundler::FileUtils.uptodate?('hello.o', %w(hello.c hello.h)) or \ system 'make hello.o'
# File lib/bundler/vendor/fileutils/lib/fileutils.rb, line 135 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
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