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#
# = pathname.rb
#
# Object-Oriented Pathname Class
#
# Author:: Tanaka Akira <akr@m17n.org>
# Documentation:: Author and Gavin Sinclair
#
# For documentation, see class Pathname.
#

require 'pathname.so'

class Pathname

  # :stopdoc:
  if RUBY_VERSION < "1.9"
    TO_PATH = :to_str
  else
    # to_path is implemented so Pathname objects are usable with File.open, etc.
    TO_PATH = :to_path
  end

  SAME_PATHS = if File::FNM_SYSCASE.nonzero?
    # Avoid #zero? here because #casecmp can return nil.
    proc {|a, b| a.casecmp(b) == 0}
  else
    proc {|a, b| a == b}
  end


  if File::ALT_SEPARATOR
    SEPARATOR_LIST = "#{Regexp.quote File::ALT_SEPARATOR}#{Regexp.quote File::SEPARATOR}"
    SEPARATOR_PAT = /[#{SEPARATOR_LIST}]/
  else
    SEPARATOR_LIST = "#{Regexp.quote File::SEPARATOR}"
    SEPARATOR_PAT = /#{Regexp.quote File::SEPARATOR}/
  end

  # :startdoc:

  # chop_basename(path) -> [pre-basename, basename] or nil
  def chop_basename(path) # :nodoc:
    base = File.basename(path)
    if /\A#{SEPARATOR_PAT}?\z/o =~ base
      return nil
    else
      return path[0, path.rindex(base)], base
    end
  end
  private :chop_basename

  # split_names(path) -> prefix, [name, ...]
  def split_names(path) # :nodoc:
    names = []
    while r = chop_basename(path)
      path, basename = r
      names.unshift basename
    end
    return path, names
  end
  private :split_names

  def prepend_prefix(prefix, relpath) # :nodoc:
    if relpath.empty?
      File.dirname(prefix)
    elsif /#{SEPARATOR_PAT}/o =~ prefix
      prefix = File.dirname(prefix)
      prefix = File.join(prefix, "") if File.basename(prefix + 'a') != 'a'
      prefix + relpath
    else
      prefix + relpath
    end
  end
  private :prepend_prefix

  # Returns clean pathname of +self+ with consecutive slashes and useless dots
  # removed.  The filesystem is not accessed.
  #
  # If +consider_symlink+ is +true+, then a more conservative algorithm is used
  # to avoid breaking symbolic linkages.  This may retain more +..+
  # entries than absolutely necessary, but without accessing the filesystem,
  # this can't be avoided.
  #
  # See Pathname#realpath.
  #
  def cleanpath(consider_symlink=false)
    if consider_symlink
      cleanpath_conservative
    else
      cleanpath_aggressive
    end
  end

  #
  # Clean the path simply by resolving and removing excess +.+ and +..+ entries.
  # Nothing more, nothing less.
  #
  def cleanpath_aggressive # :nodoc:
    path = @path
    names = []
    pre = path
    while r = chop_basename(pre)
      pre, base = r
      case base
      when '.'
      when '..'
        names.unshift base
      else
        if names[0] == '..'
          names.shift
        else
          names.unshift base
        end
      end
    end
    pre.tr!(File::ALT_SEPARATOR, File::SEPARATOR) if File::ALT_SEPARATOR
    if /#{SEPARATOR_PAT}/o =~ File.basename(pre)
      names.shift while names[0] == '..'
    end
    self.class.new(prepend_prefix(pre, File.join(*names)))
  end
  private :cleanpath_aggressive

  # has_trailing_separator?(path) -> bool
  def has_trailing_separator?(path) # :nodoc:
    if r = chop_basename(path)
      pre, basename = r
      pre.length + basename.length < path.length
    else
      false
    end
  end
  private :has_trailing_separator?

  # add_trailing_separator(path) -> path
  def add_trailing_separator(path) # :nodoc:
    if File.basename(path + 'a') == 'a'
      path
    else
      File.join(path, "") # xxx: Is File.join is appropriate to add separator?
    end
  end
  private :add_trailing_separator

  def del_trailing_separator(path) # :nodoc:
    if r = chop_basename(path)
      pre, basename = r
      pre + basename
    elsif /#{SEPARATOR_PAT}+\z/o =~ path
      $` + File.dirname(path)[/#{SEPARATOR_PAT}*\z/o]
    else
      path
    end
  end
  private :del_trailing_separator

  def cleanpath_conservative # :nodoc:
    path = @path
    names = []
    pre = path
    while r = chop_basename(pre)
      pre, base = r
      names.unshift base if base != '.'
    end
    pre.tr!(File::ALT_SEPARATOR, File::SEPARATOR) if File::ALT_SEPARATOR
    if /#{SEPARATOR_PAT}/o =~ File.basename(pre)
      names.shift while names[0] == '..'
    end
    if names.empty?
      self.class.new(File.dirname(pre))
    else
      if names.last != '..' && File.basename(path) == '.'
        names << '.'
      end
      result = prepend_prefix(pre, File.join(*names))
      if /\A(?:\.|\.\.)\z/ !~ names.last && has_trailing_separator?(path)
        self.class.new(add_trailing_separator(result))
      else
        self.class.new(result)
      end
    end
  end
  private :cleanpath_conservative

  # Returns the parent directory.
  #
  # This is same as <code>self + '..'</code>.
  def parent
    self + '..'
  end

  # Returns +true+ if +self+ points to a mountpoint.
  def mountpoint?
    begin
      stat1 = self.lstat
      stat2 = self.parent.lstat
      stat1.dev == stat2.dev && stat1.ino == stat2.ino ||
        stat1.dev != stat2.dev
    rescue Errno::ENOENT
      false
    end
  end

  #
  # Predicate method for root directories.  Returns +true+ if the
  # pathname consists of consecutive slashes.
  #
  # It doesn't access the filesystem.  So it may return +false+ for some
  # pathnames which points to roots such as <tt>/usr/..</tt>.
  #
  def root?
    !!(chop_basename(@path) == nil && /#{SEPARATOR_PAT}/o =~ @path)
  end

  # Predicate method for testing whether a path is absolute.
  #
  # It returns +true+ if the pathname begins with a slash.
  #
  #   p = Pathname.new('/im/sure')
  #   p.absolute?
  #       #=> true
  #
  #   p = Pathname.new('not/so/sure')
  #   p.absolute?
  #       #=> false
  def absolute?
    !relative?
  end

  # The opposite of Pathname#absolute?
  #
  # It returns +false+ if the pathname begins with a slash.
  #
  #   p = Pathname.new('/im/sure')
  #   p.relative?
  #       #=> false
  #
  #   p = Pathname.new('not/so/sure')
  #   p.relative?
  #       #=> true
  def relative?
    path = @path
    while r = chop_basename(path)
      path, = r
    end
    path == ''
  end

  #
  # Iterates over each component of the path.
  #
  #   Pathname.new("/usr/bin/ruby").each_filename {|filename| ... }
  #     # yields "usr", "bin", and "ruby".
  #
  # Returns an Enumerator if no block was given.
  #
  #   enum = Pathname.new("/usr/bin/ruby").each_filename
  #     # ... do stuff ...
  #   enum.each { |e| ... }
  #     # yields "usr", "bin", and "ruby".
  #
  def each_filename # :yield: filename
    return to_enum(__method__) unless block_given?
    _, names = split_names(@path)
    names.each {|filename| yield filename }
    nil
  end

  # Iterates over and yields a new Pathname object
  # for each element in the given path in descending order.
  #
  #  Pathname.new('/path/to/some/file.rb').descend {|v| p v}
  #     #<Pathname:/>
  #     #<Pathname:/path>
  #     #<Pathname:/path/to>
  #     #<Pathname:/path/to/some>
  #     #<Pathname:/path/to/some/file.rb>
  #
  #  Pathname.new('path/to/some/file.rb').descend {|v| p v}
  #     #<Pathname:path>
  #     #<Pathname:path/to>
  #     #<Pathname:path/to/some>
  #     #<Pathname:path/to/some/file.rb>
  #
  # It doesn't access the filesystem.
  #
  def descend
    vs = []
    ascend {|v| vs << v }
    vs.reverse_each {|v| yield v }
    nil
  end

  # Iterates over and yields a new Pathname object
  # for each element in the given path in ascending order.
  #
  #  Pathname.new('/path/to/some/file.rb').ascend {|v| p v}
  #     #<Pathname:/path/to/some/file.rb>
  #     #<Pathname:/path/to/some>
  #     #<Pathname:/path/to>
  #     #<Pathname:/path>
  #     #<Pathname:/>
  #
  #  Pathname.new('path/to/some/file.rb').ascend {|v| p v}
  #     #<Pathname:path/to/some/file.rb>
  #     #<Pathname:path/to/some>
  #     #<Pathname:path/to>
  #     #<Pathname:path>
  #
  # It doesn't access the filesystem.
  #
  def ascend
    path = @path
    yield self
    while r = chop_basename(path)
      path, = r
      break if path.empty?
      yield self.class.new(del_trailing_separator(path))
    end
  end

  #
  # Appends a pathname fragment to +self+ to produce a new Pathname object.
  #
  #   p1 = Pathname.new("/usr")      # Pathname:/usr
  #   p2 = p1 + "bin/ruby"           # Pathname:/usr/bin/ruby
  #   p3 = p1 + "/etc/passwd"        # Pathname:/etc/passwd
  #
  # This method doesn't access the file system; it is pure string manipulation.
  #
  def +(other)
    other = Pathname.new(other) unless Pathname === other
    Pathname.new(plus(@path, other.to_s))
  end

  def plus(path1, path2) # -> path # :nodoc:
    prefix2 = path2
    index_list2 = []
    basename_list2 = []
    while r2 = chop_basename(prefix2)
      prefix2, basename2 = r2
      index_list2.unshift prefix2.length
      basename_list2.unshift basename2
    end
    return path2 if prefix2 != ''
    prefix1 = path1
    while true
      while !basename_list2.empty? && basename_list2.first == '.'
        index_list2.shift
        basename_list2.shift
      end
      break unless r1 = chop_basename(prefix1)
      prefix1, basename1 = r1
      next if basename1 == '.'
      if basename1 == '..' || basename_list2.empty? || basename_list2.first != '..'
        prefix1 = prefix1 + basename1
        break
      end
      index_list2.shift
      basename_list2.shift
    end
    r1 = chop_basename(prefix1)
    if !r1 && /#{SEPARATOR_PAT}/o =~ File.basename(prefix1)
      while !basename_list2.empty? && basename_list2.first == '..'
        index_list2.shift
        basename_list2.shift
      end
    end
    if !basename_list2.empty?
      suffix2 = path2[index_list2.first..-1]
      r1 ? File.join(prefix1, suffix2) : prefix1 + suffix2
    else
      r1 ? prefix1 : File.dirname(prefix1)
    end
  end
  private :plus

  #
  # Joins the given pathnames onto +self+ to create a new Pathname object.
  #
  #   path0 = Pathname.new("/usr")                # Pathname:/usr
  #   path0 = path0.join("bin/ruby")              # Pathname:/usr/bin/ruby
  #       # is the same as
  #   path1 = Pathname.new("/usr") + "bin/ruby"   # Pathname:/usr/bin/ruby
  #   path0 == path1
  #       #=> true
  #
  def join(*args)
    args.unshift self
    result = args.pop
    result = Pathname.new(result) unless Pathname === result
    return result if result.absolute?
    args.reverse_each {|arg|
      arg = Pathname.new(arg) unless Pathname === arg
      result = arg + result
      return result if result.absolute?
    }
    result
  end

  #
  # Returns the children of the directory (files and subdirectories, not
  # recursive) as an array of Pathname objects.
  #
  # By default, the returned pathnames will have enough information to access
  # the files. If you set +with_directory+ to +false+, then the returned
  # pathnames will contain the filename only.
  #
  # For example:
  #   pn = Pathname("/usr/lib/ruby/1.8")
  #   pn.children
  #       # -> [ Pathname:/usr/lib/ruby/1.8/English.rb,
  #              Pathname:/usr/lib/ruby/1.8/Env.rb,
  #              Pathname:/usr/lib/ruby/1.8/abbrev.rb, ... ]
  #   pn.children(false)
  #       # -> [ Pathname:English.rb, Pathname:Env.rb, Pathname:abbrev.rb, ... ]
  #
  # Note that the results never contain the entries +.+ and +..+ in
  # the directory because they are not children.
  #
  def children(with_directory=true)
    with_directory = false if @path == '.'
    result = []
    Dir.foreach(@path) {|e|
      next if e == '.' || e == '..'
      if with_directory
        result << self.class.new(File.join(@path, e))
      else
        result << self.class.new(e)
      end
    }
    result
  end

  # Iterates over the children of the directory
  # (files and subdirectories, not recursive).
  #
  # It yields Pathname object for each child.
  #
  # By default, the yielded pathnames will have enough information to access
  # the files.
  #
  # If you set +with_directory+ to +false+, then the returned pathnames will
  # contain the filename only.
  #
  #   Pathname("/usr/local").each_child {|f| p f }
  #   #=> #<Pathname:/usr/local/share>
  #   #   #<Pathname:/usr/local/bin>
  #   #   #<Pathname:/usr/local/games>
  #   #   #<Pathname:/usr/local/lib>
  #   #   #<Pathname:/usr/local/include>
  #   #   #<Pathname:/usr/local/sbin>
  #   #   #<Pathname:/usr/local/src>
  #   #   #<Pathname:/usr/local/man>
  #
  #   Pathname("/usr/local").each_child(false) {|f| p f }
  #   #=> #<Pathname:share>
  #   #   #<Pathname:bin>
  #   #   #<Pathname:games>
  #   #   #<Pathname:lib>
  #   #   #<Pathname:include>
  #   #   #<Pathname:sbin>
  #   #   #<Pathname:src>
  #   #   #<Pathname:man>
  #
  # Note that the results never contain the entries +.+ and +..+ in
  # the directory because they are not children.
  #
  # See Pathname#children
  #
  def each_child(with_directory=true, &b)
    children(with_directory).each(&b)
  end

  #
  # Returns a relative path from the given +base_directory+ to the receiver.
  #
  # If +self+ is absolute, then +base_directory+ must be absolute too.
  #
  # If +self+ is relative, then +base_directory+ must be relative too.
  #
  # This method doesn't access the filesystem.  It assumes no symlinks.
  #
  # ArgumentError is raised when it cannot find a relative path.
  #
  def relative_path_from(base_directory)
    dest_directory = self.cleanpath.to_s
    base_directory = base_directory.cleanpath.to_s
    dest_prefix = dest_directory
    dest_names = []
    while r = chop_basename(dest_prefix)
      dest_prefix, basename = r
      dest_names.unshift basename if basename != '.'
    end
    base_prefix = base_directory
    base_names = []
    while r = chop_basename(base_prefix)
      base_prefix, basename = r
      base_names.unshift basename if basename != '.'
    end
    unless SAME_PATHS[dest_prefix, base_prefix]
      raise ArgumentError, "different prefix: #{dest_prefix.inspect} and #{base_directory.inspect}"
    end
    while !dest_names.empty? &&
          !base_names.empty? &&
          SAME_PATHS[dest_names.first, base_names.first]
      dest_names.shift
      base_names.shift
    end
    if base_names.include? '..'
      raise ArgumentError, "base_directory has ..: #{base_directory.inspect}"
    end
    base_names.fill('..')
    relpath_names = base_names + dest_names
    if relpath_names.empty?
      Pathname.new('.')
    else
      Pathname.new(File.join(*relpath_names))
    end
  end
end


class Pathname    # * Find *
  #
  # Iterates over the directory tree in a depth first manner, yielding a
  # Pathname for each file under "this" directory.
  #
  # Returns an Enumerator if no block is given.
  #
  # Since it is implemented by the standard library module Find, Find.prune can
  # be used to control the traversal.
  #
  # If +self+ is +.+, yielded pathnames begin with a filename in the
  # current directory, not +./+.
  #
  # See Find.find
  #
  def find # :yield: pathname
    return to_enum(__method__) unless block_given?
    require 'find'
    if @path == '.'
      Find.find(@path) {|f| yield self.class.new(f.sub(%r{\A\./}, '')) }
    else
      Find.find(@path) {|f| yield self.class.new(f) }
    end
  end
end


class Pathname    # * FileUtils *
  # Creates a full path, including any intermediate directories that don't yet
  # exist.
  #
  # See FileUtils.mkpath and FileUtils.mkdir_p
  def mkpath
    require 'fileutils'
    FileUtils.mkpath(@path)
    nil
  end

  # Recursively deletes a directory, including all directories beneath it.
  #
  # See FileUtils.rm_r
  def rmtree
    # The name "rmtree" is borrowed from File::Path of Perl.
    # File::Path provides "mkpath" and "rmtree".
    require 'fileutils'
    FileUtils.rm_r(@path)
    nil
  end
end

Filemanager

DIR : / usr/ share/ ruby/
Name Type Size Permission Actions
bigdecimal Folder 0755
cgi Folder 0755
date Folder 0755
digest Folder 0755
dl Folder 0755
drb Folder 0755
fiddle Folder 0755
io Folder 0755
irb Folder 0755
json Folder 0755
matrix Folder 0755
net Folder 0755
openssl Folder 0755
optparse Folder 0755
psych Folder 0755
racc Folder 0755
rbconfig Folder 0755
rexml Folder 0755
rinda Folder 0755
ripper Folder 0755
rss Folder 0755
shell Folder 0755
syslog Folder 0755
test Folder 0755
uri Folder 0755
vendor_ruby Folder 0755
webrick Folder 0755
xmlrpc Folder 0755
yaml Folder 0755
English.rb File 6.44 KB 0644
abbrev.rb File 3.31 KB 0644
base64.rb File 2.63 KB 0644
benchmark.rb File 17.94 KB 0644
cgi.rb File 9.39 KB 0644
cmath.rb File 7.22 KB 0644
complex.rb File 380 B 0644
csv.rb File 81.32 KB 0644
date.rb File 946 B 0644
debug.rb File 28.9 KB 0644
delegate.rb File 9.78 KB 0644
digest.rb File 2.24 KB 0644
dl.rb File 280 B 0644
drb.rb File 19 B 0644
e2mmap.rb File 3.8 KB 0644
erb.rb File 26.08 KB 0644
expect.rb File 2.14 KB 0644
fiddle.rb File 1.25 KB 0644
fileutils.rb File 46.35 KB 0644
find.rb File 2.08 KB 0644
forwardable.rb File 7.56 KB 0644
getoptlong.rb File 15.38 KB 0644
gserver.rb File 8.86 KB 0644
ipaddr.rb File 26.17 KB 0644
irb.rb File 20.03 KB 0644
json.rb File 1.74 KB 0644
kconv.rb File 5.74 KB 0644
logger.rb File 20.96 KB 0644
mathn.rb File 6.52 KB 0644
matrix.rb File 45.02 KB 0644
mkmf.rb File 78.13 KB 0644
monitor.rb File 6.93 KB 0644
mutex_m.rb File 2 KB 0644
observer.rb File 5.71 KB 0644
open-uri.rb File 23.66 KB 0644
open3.rb File 21.17 KB 0644
openssl.rb File 528 B 0644
optparse.rb File 51.27 KB 0644
ostruct.rb File 7.64 KB 0644
pathname.rb File 15.3 KB 0644
pp.rb File 13.14 KB 0644
prettyprint.rb File 9.63 KB 0644
prime.rb File 13.98 KB 0644
profile.rb File 205 B 0644
profiler.rb File 4.29 KB 0644
pstore.rb File 14.85 KB 0644
psych.rb File 11.45 KB 0644
rational.rb File 308 B 0644
resolv-replace.rb File 1.73 KB 0644
resolv.rb File 61.46 KB 0644
ripper.rb File 2.53 KB 0644
rss.rb File 2.84 KB 0644
scanf.rb File 23.52 KB 0644
securerandom.rb File 8.56 KB 0644
set.rb File 17.32 KB 0644
shell.rb File 10.3 KB 0644
shellwords.rb File 5.94 KB 0644
singleton.rb File 4.02 KB 0644
socket.rb File 25.76 KB 0644
sync.rb File 7.26 KB 0644
tempfile.rb File 10.15 KB 0644
thread.rb File 6.94 KB 0644
thwait.rb File 3.38 KB 0644
time.rb File 21.09 KB 0644
timeout.rb File 3.16 KB 0644
tmpdir.rb File 4.29 KB 0644
tracer.rb File 6.54 KB 0644
tsort.rb File 6.79 KB 0644
un.rb File 8.34 KB 0644
uri.rb File 3.07 KB 0644
weakref.rb File 3.23 KB 0644
webrick.rb File 6.7 KB 0644
xmlrpc.rb File 8.49 KB 0644
yaml.rb File 2.3 KB 0644