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4627c5a19b
(cleanpath_conservative): ditto. Suggested by Daniel Berger. [ruby-core:3914] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7542 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
1207 lines
36 KiB
Ruby
1207 lines
36 KiB
Ruby
#
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# = pathname.rb
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#
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# Object-Oriented Pathname Class
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#
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# Author:: Tanaka Akira <akr@m17n.org>
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# Documentation:: Author and Gavin Sinclair
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#
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# For documentation, see class Pathname.
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#
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# <tt>pathname.rb</tt> is distributed with Ruby since 1.8.0.
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#
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#
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# == Pathname
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#
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# Pathname represents a pathname which locates a file in a filesystem.
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# It supports only Unix style pathnames. It does not represent the file
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# itself. A Pathname can be relative or absolute. It's not until you try to
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# reference the file that it even matters whether the file exists or not.
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#
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# Pathname is immutable. It has no method for destructive update.
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#
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# The value of this class is to manipulate file path information in a neater
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# way than standard Ruby provides. The examples below demonstrate the
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# difference. *All* functionality from File, FileTest, and some from Dir and
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# FileUtils is included, in an unsurprising way. It is essentially a facade for
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# all of these, and more.
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#
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# == Examples
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#
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# === Example 1: Using Pathname
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#
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# require 'pathname'
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# p = Pathname.new("/usr/bin/ruby")
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# size = p.size # 27662
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# isdir = p.directory? # false
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# dir = p.dirname # Pathname:/usr/bin
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# base = p.basename # Pathname:ruby
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# dir, base = p.split # [Pathname:/usr/bin, Pathname:ruby]
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# data = p.read
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# p.open { |f| _ }
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# p.each_line { |line| _ }
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#
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# === Example 2: Using standard Ruby
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#
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# p = "/usr/bin/ruby"
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# size = File.size(p) # 27662
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# isdir = File.directory?(p) # false
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# dir = File.dirname(p) # "/usr/bin"
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# base = File.basename(p) # "ruby"
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# dir, base = File.split(p) # ["/usr/bin", "ruby"]
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# data = File.read(p)
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# File.open(p) { |f| _ }
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# File.foreach(p) { |line| _ }
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#
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# === Example 3: Special features
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#
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# p1 = Pathname.new("/usr/lib") # Pathname:/usr/lib
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# p2 = p1 + "ruby/1.8" # Pathname:/usr/lib/ruby/1.8
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# p3 = p1.parent # Pathname:/usr
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# p4 = p2.relative_path_from(p3) # Pathname:lib/ruby/1.8
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# pwd = Pathname.pwd # Pathname:/home/gavin
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# pwd.absolute? # true
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# p5 = Pathname.new "." # Pathname:.
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# p5 = p5 + "music/../articles" # Pathname:music/../articles
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# p5.cleanpath # Pathname:articles
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# p5.realpath # Pathname:/home/gavin/articles
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# p5.children # [Pathname:/home/gavin/articles/linux, ...]
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#
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# == Breakdown of functionality
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#
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# === Core methods
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#
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# These methods are effectively manipulating a String, because that's all a path
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# is. Except for #mountpoint?, #children, and #realpath, they don't access the
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# filesystem.
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#
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# - +
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# - #join
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# - #parent
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# - #root?
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# - #absolute?
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# - #relative?
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# - #relative_path_from
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# - #each_filename
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# - #cleanpath
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# - #realpath
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# - #children
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# - #mountpoint?
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#
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# === File status predicate methods
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#
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# These methods are a facade for FileTest:
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# - #blockdev?
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# - #chardev?
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# - #directory?
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# - #executable?
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# - #executable_real?
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# - #exist?
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# - #file?
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# - #grpowned?
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# - #owned?
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# - #pipe?
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# - #readable?
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# - #world_readable?
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# - #readable_real?
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# - #setgid?
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# - #setuid?
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# - #size
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# - #size?
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# - #socket?
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# - #sticky?
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# - #symlink?
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# - #writable?
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# - #world_writable?
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# - #writable_real?
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# - #zero?
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#
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# === File property and manipulation methods
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#
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# These methods are a facade for File:
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# - #atime
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# - #ctime
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# - #mtime
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# - #chmod(mode)
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# - #lchmod(mode)
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# - #chown(owner, group)
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# - #lchown(owner, group)
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# - #fnmatch(pattern, *args)
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# - #fnmatch?(pattern, *args)
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# - #ftype
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# - #make_link(old)
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# - #open(*args, &block)
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# - #readlink
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# - #rename(to)
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# - #stat
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# - #lstat
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# - #make_symlink(old)
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# - #truncate(length)
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# - #utime(atime, mtime)
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# - #basename(*args)
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# - #dirname
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# - #extname
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# - #expand_path(*args)
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# - #split
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#
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# === Directory methods
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#
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# These methods are a facade for Dir:
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# - Pathname.glob(*args)
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# - Pathname.getwd / Pathname.pwd
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# - #rmdir
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# - #entries
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# - #each_entry(&block)
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# - #mkdir(*args)
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# - #opendir(*args)
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#
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# === IO
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#
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# These methods are a facade for IO:
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# - #each_line(*args, &block)
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# - #read(*args)
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# - #readlines(*args)
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# - #sysopen(*args)
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#
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# === Utilities
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#
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# These methods are a mixture of Find, FileUtils, and others:
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# - #find(&block)
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# - #mkpath
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# - #rmtree
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# - #unlink / #delete
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#
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#
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# == Method documentation
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#
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# As the above section shows, most of the methods in Pathname are facades. The
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# documentation for these methods generally just says, for instance, "See
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# FileTest.writable?", as you should be familiar with the original method
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# anyway, and its documentation (e.g. through +ri+) will contain more
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# information. In some cases, a brief description will follow.
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#
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class Pathname
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#
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# Create a Pathname object from the given String (or String-like object).
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# If +path+ contains a NUL character (<tt>\0</tt>), an ArgumentError is raised.
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#
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def initialize(path)
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path = path.to_path if path.respond_to? :to_path
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@path = path.dup
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if /\0/ =~ @path
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raise ArgumentError, "pathname contains \\0: #{@path.inspect}"
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end
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self.taint if @path.tainted?
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end
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def freeze() super; @path.freeze; self end
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def taint() super; @path.taint; self end
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def untaint() super; @path.untaint; self end
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#
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# Compare this pathname with +other+. The comparison is string-based.
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# Be aware that two different paths (<tt>foo.txt</tt> and <tt>./foo.txt</tt>)
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# can refer to the same file.
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#
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def ==(other)
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return false unless Pathname === other
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other.to_s == @path
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end
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alias === ==
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alias eql? ==
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# Provides for comparing pathnames, case-sensitively.
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def <=>(other)
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return nil unless Pathname === other
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@path.tr('/', "\0") <=> other.to_s.tr('/', "\0")
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end
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def hash # :nodoc:
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@path.hash
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end
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# Return the path as a String.
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def to_s
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@path.dup
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end
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# to_path is implemented so Pathname objects are usable with File.open, etc.
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alias to_path to_s
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def inspect # :nodoc:
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"#<#{self.class}:#{@path}>"
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end
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#
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# Returns clean pathname of +self+ with consecutive slashes and useless dots
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# removed. The filesystem is not accessed.
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#
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# If +consider_symlink+ is +true+, then a more conservative algorithm is used
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# to avoid breaking symbolic linkages. This may retain more <tt>..</tt>
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# entries than absolutely necessary, but without accessing the filesystem,
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# this can't be avoided. See #realpath.
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#
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def cleanpath(consider_symlink=false)
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if consider_symlink
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cleanpath_conservative
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else
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cleanpath_aggressive
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end
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end
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#
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# Clean the path simply by resolving and removing excess "." and ".." entries.
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# Nothing more, nothing less.
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#
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def cleanpath_aggressive
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# cleanpath_aggressive assumes:
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# * no symlink
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# * all pathname prefix contained in the pathname is existing directory
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return Pathname.new('') if @path == ''
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absolute = absolute?
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names = []
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@path.scan(%r{[^/]+}) {|name|
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next if name == '.'
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if name == '..'
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if names.empty?
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next if absolute
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else
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if names.last != '..'
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names.pop
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next
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end
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end
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end
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names << name
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}
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return Pathname.new(absolute ? '/' : '.') if names.empty?
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path = absolute ? '/' : ''
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path << names.join('/')
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Pathname.new(path)
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end
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private :cleanpath_aggressive
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def cleanpath_conservative
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return Pathname.new('') if @path == ''
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names = @path.scan(%r{[^/]+})
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last_dot = names.last == '.'
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names.delete('.')
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names.shift while names.first == '..' if absolute?
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return Pathname.new(absolute? ? '/' : '.') if names.empty?
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path = absolute? ? '/' : ''
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path << names.join('/')
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if names.last != '..'
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if last_dot
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path << '/.'
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elsif %r{/\z} =~ @path
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path << '/'
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end
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end
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Pathname.new(path)
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end
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private :cleanpath_conservative
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#
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# Returns a real (absolute) pathname of +self+ in the actual filesystem.
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# The real pathname doesn't contain symlinks or useless dots.
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#
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# No arguments should be given; the old behaviour is *obsoleted*.
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#
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def realpath(*args)
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unless args.empty?
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warn "The argument for Pathname#realpath is obsoleted."
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end
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force_absolute = args.fetch(0, true)
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if %r{\A/} =~ @path
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top = '/'
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unresolved = @path.scan(%r{[^/]+})
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elsif force_absolute
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# Although POSIX getcwd returns a pathname which contains no symlink,
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# 4.4BSD-Lite2 derived getcwd may return the environment variable $PWD
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# which may contain a symlink.
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# So the return value of Dir.pwd should be examined.
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top = '/'
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unresolved = Dir.pwd.scan(%r{[^/]+}) + @path.scan(%r{[^/]+})
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else
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top = ''
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unresolved = @path.scan(%r{[^/]+})
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end
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resolved = []
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until unresolved.empty?
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case unresolved.last
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when '.'
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unresolved.pop
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when '..'
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resolved.unshift unresolved.pop
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else
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loop_check = {}
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while (stat = File.lstat(path = top + unresolved.join('/'))).symlink?
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symlink_id = "#{stat.dev}:#{stat.ino}"
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raise Errno::ELOOP.new(path) if loop_check[symlink_id]
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loop_check[symlink_id] = true
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if %r{\A/} =~ (link = File.readlink(path))
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top = '/'
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unresolved = link.scan(%r{[^/]+})
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else
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unresolved[-1,1] = link.scan(%r{[^/]+})
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end
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end
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next if (filename = unresolved.pop) == '.'
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if filename != '..' && resolved.first == '..'
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resolved.shift
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else
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resolved.unshift filename
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end
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end
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end
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if top == '/'
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resolved.shift while resolved[0] == '..'
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end
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if resolved.empty?
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Pathname.new(top.empty? ? '.' : '/')
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else
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Pathname.new(top + resolved.join('/'))
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end
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end
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# #parent returns the parent directory.
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#
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# This is same as <tt>self + '..'</tt>.
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def parent
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self + '..'
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end
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# #mountpoint? returns +true+ if <tt>self</tt> points to a mountpoint.
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def mountpoint?
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begin
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stat1 = self.lstat
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stat2 = self.parent.lstat
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stat1.dev == stat2.dev && stat1.ino == stat2.ino ||
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stat1.dev != stat2.dev
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rescue Errno::ENOENT
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false
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end
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end
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#
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# #root? is a predicate for root directories. I.e. it returns +true+ if the
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# pathname consists of consecutive slashes.
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#
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# It doesn't access actual filesystem. So it may return +false+ for some
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# pathnames which points to roots such as <tt>/usr/..</tt>.
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#
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def root?
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%r{\A/+\z} =~ @path ? true : false
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end
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# Predicate method for testing whether a path is absolute.
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# It returns +true+ if the pathname begins with a slash.
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def absolute?
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%r{\A/} =~ @path ? true : false
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end
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# The opposite of #absolute?
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def relative?
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!absolute?
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end
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#
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# Iterates over each component of the path.
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#
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# Pathname.new("/usr/bin/ruby").each_filename
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# # yields "usr", "bin", and "ruby".
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#
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def each_filename # :yield: s
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@path.scan(%r{[^/]+}) { yield $& }
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end
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#
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# Pathname#+ appends a pathname fragment to this one to produce a new Pathname
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# object.
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#
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# p1 = Pathname.new("/usr") # Pathname:/usr
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# p2 = p1 + "bin/ruby" # Pathname:/usr/bin/ruby
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# p3 = p1 + "/etc/passwd" # Pathname:/etc/passwd
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#
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# This method doesn't access the file system; it is pure string manipulation.
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#
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def +(other)
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other = Pathname.new(other) unless Pathname === other
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return other if other.absolute?
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path1 = @path
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path2 = other.to_s
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while m2 = %r{\A\.\.(?:/+|\z)}.match(path2) and
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m1 = %r{(\A|/+)([^/]+)\z}.match(path1) and
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%r{\A(?:\.|\.\.)\z} !~ m1[2]
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path1 = m1[1].empty? ? '.' : '/' if (path1 = m1.pre_match).empty?
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path2 = '.' if (path2 = m2.post_match).empty?
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end
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if %r{\A/+\z} =~ path1
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while m2 = %r{\A\.\.(?:/+|\z)}.match(path2)
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path2 = '.' if (path2 = m2.post_match).empty?
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end
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end
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return Pathname.new(path2) if path1 == '.'
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return Pathname.new(path1) if path2 == '.'
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if %r{/\z} =~ path1
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Pathname.new(path1 + path2)
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else
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Pathname.new(path1 + '/' + path2)
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end
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end
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#
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# Pathname#join joins pathnames.
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#
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# <tt>path0.join(path1, ..., pathN)</tt> is the same as
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# <tt>path0 + path1 + ... + pathN</tt>.
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#
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def join(*args)
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args.unshift self
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result = args.pop
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result = Pathname.new(result) unless Pathname === result
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return result if result.absolute?
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args.reverse_each {|arg|
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arg = Pathname.new(arg) unless Pathname === arg
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result = arg + result
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return result if result.absolute?
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}
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result
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end
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#
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# Returns the children of the directory (files and subdirectories, not
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# recursive) as an array of Pathname objects. By default, the returned
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# pathnames will have enough information to access the files. If you set
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# +with_directory+ to +false+, then the returned pathnames will contain the
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# filename only.
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#
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# For example:
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# p = Pathname("/usr/lib/ruby/1.8")
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# p.children
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# # -> [ Pathname:/usr/lib/ruby/1.8/English.rb,
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# Pathname:/usr/lib/ruby/1.8/Env.rb,
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# Pathname:/usr/lib/ruby/1.8/abbrev.rb, ... ]
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# p.children(false)
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# # -> [ Pathname:English.rb, Pathname:Env.rb, Pathname:abbrev.rb, ... ]
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#
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# Note that the result never contain the entries <tt>.</tt> and <tt>..</tt> in
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# the directory because they are not children.
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#
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# This method has existed since 1.8.1.
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#
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def children(with_directory=true)
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with_directory = false if @path == '.'
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result = []
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Dir.foreach(@path) {|e|
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next if e == '.' || e == '..'
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if with_directory
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result << Pathname.new(File.join(@path, e))
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else
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result << Pathname.new(e)
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end
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}
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result
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end
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|
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#
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# #relative_path_from returns a relative path from the argument to the
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# receiver. If +self+ is absolute, the argument must be absolute too. If
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# +self+ is relative, the argument must be relative too.
|
|
#
|
|
# #relative_path_from doesn't access the filesystem. It assumes no symlinks.
|
|
#
|
|
# ArgumentError is raised when it cannot find a relative path.
|
|
#
|
|
# This method has existed since 1.8.1.
|
|
#
|
|
def relative_path_from(base_directory)
|
|
if self.absolute? != base_directory.absolute?
|
|
raise ArgumentError,
|
|
"relative path between absolute and relative path: #{self.inspect}, #{base_directory.inspect}"
|
|
end
|
|
|
|
dest = []
|
|
self.cleanpath.each_filename {|f|
|
|
next if f == '.'
|
|
dest << f
|
|
}
|
|
|
|
base = []
|
|
base_directory.cleanpath.each_filename {|f|
|
|
next if f == '.'
|
|
base << f
|
|
}
|
|
|
|
while !base.empty? && !dest.empty? && base[0] == dest[0]
|
|
base.shift
|
|
dest.shift
|
|
end
|
|
|
|
if base.include? '..'
|
|
raise ArgumentError, "base_directory has ..: #{base_directory.inspect}"
|
|
end
|
|
|
|
base.fill '..'
|
|
relpath = base + dest
|
|
if relpath.empty?
|
|
Pathname.new(".")
|
|
else
|
|
Pathname.new(relpath.join('/'))
|
|
end
|
|
end
|
|
|
|
end
|
|
|
|
|
|
class Pathname # * IO *
|
|
#
|
|
# #each_line iterates over the line in the file. It yields a String object
|
|
# for each line.
|
|
#
|
|
# This method has existed since 1.8.1.
|
|
#
|
|
def each_line(*args, &block) # :yield: line
|
|
IO.foreach(@path, *args, &block)
|
|
end
|
|
|
|
# Pathname#foreachline is *obsoleted* at 1.8.1. Use #each_line.
|
|
def foreachline(*args, &block)
|
|
warn "Pathname#foreachline is obsoleted. Use Pathname#each_line."
|
|
each_line(*args, &block)
|
|
end
|
|
|
|
# See <tt>IO.read</tt>. Returns all the bytes from the file, or the first +N+
|
|
# if specified.
|
|
def read(*args) IO.read(@path, *args) end
|
|
|
|
# See <tt>IO.readlines</tt>. Returns all the lines from the file.
|
|
def readlines(*args) IO.readlines(@path, *args) end
|
|
|
|
# See <tt>IO.sysopen</tt>.
|
|
def sysopen(*args) IO.sysopen(@path, *args) end
|
|
end
|
|
|
|
|
|
class Pathname # * File *
|
|
|
|
# See <tt>File.atime</tt>. Returns last access time.
|
|
def atime() File.atime(@path) end
|
|
|
|
# See <tt>File.ctime</tt>. Returns last (directory entry, not file) change time.
|
|
def ctime() File.ctime(@path) end
|
|
|
|
# See <tt>File.mtime</tt>. Returns last modification time.
|
|
def mtime() File.mtime(@path) end
|
|
|
|
# See <tt>File.chmod</tt>. Changes permissions.
|
|
def chmod(mode) File.chmod(mode, @path) end
|
|
|
|
# See <tt>File.lchmod</tt>.
|
|
def lchmod(mode) File.lchmod(mode, @path) end
|
|
|
|
# See <tt>File.chown</tt>. Change owner and group of file.
|
|
def chown(owner, group) File.chown(owner, group, @path) end
|
|
|
|
# See <tt>File.lchown</tt>.
|
|
def lchown(owner, group) File.lchown(owner, group, @path) end
|
|
|
|
# See <tt>File.fnmatch</tt>. Return +true+ if the receiver matches the given
|
|
# pattern.
|
|
def fnmatch(pattern, *args) File.fnmatch(pattern, @path, *args) end
|
|
|
|
# See <tt>File.fnmatch?</tt> (same as #fnmatch).
|
|
def fnmatch?(pattern, *args) File.fnmatch?(pattern, @path, *args) end
|
|
|
|
# See <tt>File.ftype</tt>. Returns "type" of file ("file", "directory",
|
|
# etc).
|
|
def ftype() File.ftype(@path) end
|
|
|
|
# See <tt>File.link</tt>. Creates a hard link.
|
|
def make_link(old) File.link(old, @path) end
|
|
|
|
# See <tt>File.open</tt>. Opens the file for reading or writing.
|
|
def open(*args, &block) # :yield: file
|
|
File.open(@path, *args, &block)
|
|
end
|
|
|
|
# See <tt>File.readlink</tt>. Read symbolic link.
|
|
def readlink() Pathname.new(File.readlink(@path)) end
|
|
|
|
# See <tt>File.rename</tt>. Rename the file.
|
|
def rename(to) File.rename(@path, to) end
|
|
|
|
# See <tt>File.stat</tt>. Returns a <tt>File::Stat</tt> object.
|
|
def stat() File.stat(@path) end
|
|
|
|
# See <tt>File.lstat</tt>.
|
|
def lstat() File.lstat(@path) end
|
|
|
|
# See <tt>File.symlink</tt>. Creates a symbolic link.
|
|
def make_symlink(old) File.symlink(old, @path) end
|
|
|
|
# See <tt>File.truncate</tt>. Truncate the file to +length+ bytes.
|
|
def truncate(length) File.truncate(@path, length) end
|
|
|
|
# See <tt>File.utime</tt>. Update the access and modification times.
|
|
def utime(atime, mtime) File.utime(atime, mtime, @path) end
|
|
|
|
# See <tt>File.basename</tt>. Returns the last component of the path.
|
|
def basename(*args) Pathname.new(File.basename(@path, *args)) end
|
|
|
|
# See <tt>File.dirname</tt>. Returns all but the last component of the path.
|
|
def dirname() Pathname.new(File.dirname(@path)) end
|
|
|
|
# See <tt>File.extname</tt>. Returns the file's extension.
|
|
def extname() File.extname(@path) end
|
|
|
|
# See <tt>File.expand_path</tt>.
|
|
def expand_path(*args) Pathname.new(File.expand_path(@path, *args)) end
|
|
|
|
# See <tt>File.split</tt>. Returns the #dirname and the #basename in an
|
|
# Array.
|
|
def split() File.split(@path).map {|f| Pathname.new(f) } end
|
|
|
|
# Pathname#link is confusing and *obsoleted* because the receiver/argument
|
|
# order is inverted to corresponding system call.
|
|
def link(old)
|
|
warn 'Pathname#link is obsoleted. Use Pathname#make_link.'
|
|
File.link(old, @path)
|
|
end
|
|
|
|
# Pathname#symlink is confusing and *obsoleted* because the receiver/argument
|
|
# order is inverted to corresponding system call.
|
|
def symlink(old)
|
|
warn 'Pathname#symlink is obsoleted. Use Pathname#make_symlink.'
|
|
File.symlink(old, @path)
|
|
end
|
|
end
|
|
|
|
|
|
class Pathname # * FileTest *
|
|
|
|
# See <tt>FileTest.blockdev?</tt>.
|
|
def blockdev?() FileTest.blockdev?(@path) end
|
|
|
|
# See <tt>FileTest.chardev?</tt>.
|
|
def chardev?() FileTest.chardev?(@path) end
|
|
|
|
# See <tt>FileTest.executable?</tt>.
|
|
def executable?() FileTest.executable?(@path) end
|
|
|
|
# See <tt>FileTest.executable_real?</tt>.
|
|
def executable_real?() FileTest.executable_real?(@path) end
|
|
|
|
# See <tt>FileTest.exist?</tt>.
|
|
def exist?() FileTest.exist?(@path) end
|
|
|
|
# See <tt>FileTest.grpowned?</tt>.
|
|
def grpowned?() FileTest.grpowned?(@path) end
|
|
|
|
# See <tt>FileTest.directory?</tt>.
|
|
def directory?() FileTest.directory?(@path) end
|
|
|
|
# See <tt>FileTest.file?</tt>.
|
|
def file?() FileTest.file?(@path) end
|
|
|
|
# See <tt>FileTest.pipe?</tt>.
|
|
def pipe?() FileTest.pipe?(@path) end
|
|
|
|
# See <tt>FileTest.socket?</tt>.
|
|
def socket?() FileTest.socket?(@path) end
|
|
|
|
# See <tt>FileTest.owned?</tt>.
|
|
def owned?() FileTest.owned?(@path) end
|
|
|
|
# See <tt>FileTest.readable?</tt>.
|
|
def readable?() FileTest.readable?(@path) end
|
|
|
|
# See <tt>FileTest.world_readable?</tt>.
|
|
def world_readable?() FileTest.world_readable?(@path) end
|
|
|
|
# See <tt>FileTest.readable_real?</tt>.
|
|
def readable_real?() FileTest.readable_real?(@path) end
|
|
|
|
# See <tt>FileTest.setuid?</tt>.
|
|
def setuid?() FileTest.setuid?(@path) end
|
|
|
|
# See <tt>FileTest.setgid?</tt>.
|
|
def setgid?() FileTest.setgid?(@path) end
|
|
|
|
# See <tt>FileTest.size</tt>.
|
|
def size() FileTest.size(@path) end
|
|
|
|
# See <tt>FileTest.size?</tt>.
|
|
def size?() FileTest.size?(@path) end
|
|
|
|
# See <tt>FileTest.sticky?</tt>.
|
|
def sticky?() FileTest.sticky?(@path) end
|
|
|
|
# See <tt>FileTest.symlink?</tt>.
|
|
def symlink?() FileTest.symlink?(@path) end
|
|
|
|
# See <tt>FileTest.writable?</tt>.
|
|
def writable?() FileTest.writable?(@path) end
|
|
|
|
# See <tt>FileTest.world_writable?</tt>.
|
|
def world_writable?() FileTest.world_writable?(@path) end
|
|
|
|
# See <tt>FileTest.writable_real?</tt>.
|
|
def writable_real?() FileTest.writable_real?(@path) end
|
|
|
|
# See <tt>FileTest.zero?</tt>.
|
|
def zero?() FileTest.zero?(@path) end
|
|
end
|
|
|
|
|
|
class Pathname # * Dir *
|
|
# See <tt>Dir.glob</tt>. Returns or yields Pathname objects.
|
|
def Pathname.glob(*args) # :yield: p
|
|
if block_given?
|
|
Dir.glob(*args) {|f| yield Pathname.new(f) }
|
|
else
|
|
Dir.glob(*args).map {|f| Pathname.new(f) }
|
|
end
|
|
end
|
|
|
|
# See <tt>Dir.getwd</tt>. Returns the current working directory as a Pathname.
|
|
def Pathname.getwd() Pathname.new(Dir.getwd) end
|
|
class << self; alias pwd getwd end
|
|
|
|
# Pathname#chdir is *obsoleted* at 1.8.1.
|
|
def chdir(&block)
|
|
warn "Pathname#chdir is obsoleted. Use Dir.chdir."
|
|
Dir.chdir(@path, &block)
|
|
end
|
|
|
|
# Pathname#chroot is *obsoleted* at 1.8.1.
|
|
def chroot
|
|
warn "Pathname#chroot is obsoleted. Use Dir.chroot."
|
|
Dir.chroot(@path)
|
|
end
|
|
|
|
# Return the entries (files and subdirectories) in the directory, each as a
|
|
# Pathname object.
|
|
def entries() Dir.entries(@path).map {|f| Pathname.new(f) } end
|
|
|
|
# Iterates over the entries (files and subdirectories) in the directory. It
|
|
# yields a Pathname object for each entry.
|
|
#
|
|
# This method has existed since 1.8.1.
|
|
def each_entry(&block) # :yield: p
|
|
Dir.foreach(@path) {|f| yield Pathname.new(f) }
|
|
end
|
|
|
|
# Pathname#dir_foreach is *obsoleted* at 1.8.1.
|
|
def dir_foreach(*args, &block)
|
|
warn "Pathname#dir_foreach is obsoleted. Use Pathname#each_entry."
|
|
each_entry(*args, &block)
|
|
end
|
|
|
|
# See <tt>Dir.mkdir</tt>. Create the referenced directory.
|
|
def mkdir(*args) Dir.mkdir(@path, *args) end
|
|
|
|
# See <tt>Dir.rmdir</tt>. Remove the referenced directory.
|
|
def rmdir() Dir.rmdir(@path) end
|
|
|
|
# See <tt>Dir.open</tt>.
|
|
def opendir(&block) # :yield: dir
|
|
Dir.open(@path, &block)
|
|
end
|
|
end
|
|
|
|
|
|
class Pathname # * Find *
|
|
#
|
|
# Pathname#find is an iterator to traverse a directory tree in a depth first
|
|
# manner. It yields a Pathname for each file under "this" directory.
|
|
#
|
|
# Since it is implemented by <tt>find.rb</tt>, <tt>Find.prune</tt> can be used
|
|
# to control the traverse.
|
|
#
|
|
# If +self+ is <tt>.</tt>, yielded pathnames begin with a filename in the
|
|
# current directory, not <tt>./</tt>.
|
|
#
|
|
def find(&block) # :yield: p
|
|
require 'find'
|
|
if @path == '.'
|
|
Find.find(@path) {|f| yield Pathname.new(f.sub(%r{\A\./}, '')) }
|
|
else
|
|
Find.find(@path) {|f| yield Pathname.new(f) }
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
class Pathname # * FileUtils *
|
|
# See <tt>FileUtils.mkpath</tt>. Creates a full path, including any
|
|
# intermediate directories that don't yet exist.
|
|
def mkpath
|
|
require 'fileutils'
|
|
FileUtils.mkpath(@path)
|
|
nil
|
|
end
|
|
|
|
# See <tt>FileUtils.rm_r</tt>. Deletes a directory and all beneath it.
|
|
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
|
|
|
|
|
|
class Pathname # * mixed *
|
|
# Removes a file or directory, using <tt>File.unlink</tt> or
|
|
# <tt>Dir.unlink</tt> as necessary.
|
|
def unlink()
|
|
if FileTest.directory? @path
|
|
Dir.unlink @path
|
|
else
|
|
File.unlink @path
|
|
end
|
|
end
|
|
alias delete unlink
|
|
|
|
# This method is *obsoleted* at 1.8.1. Use #each_line or #each_entry.
|
|
def foreach(*args, &block)
|
|
warn "Pathname#foreach is obsoleted. Use each_line or each_entry."
|
|
if FileTest.directory? @path
|
|
# For polymorphism between Dir.foreach and IO.foreach,
|
|
# Pathname#foreach doesn't yield Pathname object.
|
|
Dir.foreach(@path, *args, &block)
|
|
else
|
|
IO.foreach(@path, *args, &block)
|
|
end
|
|
end
|
|
end
|
|
|
|
if $0 == __FILE__
|
|
require 'test/unit'
|
|
|
|
class PathnameTest < Test::Unit::TestCase # :nodoc:
|
|
def test_initialize
|
|
p1 = Pathname.new('a')
|
|
assert_equal('a', p1.to_s)
|
|
p2 = Pathname.new(p1)
|
|
assert_equal(p1, p2)
|
|
end
|
|
|
|
class AnotherStringLike # :nodoc:
|
|
def initialize(s) @s = s end
|
|
def to_str() @s end
|
|
def ==(other) @s == other end
|
|
end
|
|
|
|
def test_equality
|
|
obj = Pathname.new("a")
|
|
str = "a"
|
|
sym = :a
|
|
ano = AnotherStringLike.new("a")
|
|
assert_equal(false, obj == str)
|
|
assert_equal(false, str == obj)
|
|
assert_equal(false, obj == ano)
|
|
assert_equal(false, ano == obj)
|
|
assert_equal(false, obj == sym)
|
|
assert_equal(false, sym == obj)
|
|
|
|
obj2 = Pathname.new("a")
|
|
assert_equal(true, obj == obj2)
|
|
assert_equal(true, obj === obj2)
|
|
assert_equal(true, obj.eql?(obj2))
|
|
end
|
|
|
|
def test_hashkey
|
|
h = {}
|
|
h[Pathname.new("a")] = 1
|
|
h[Pathname.new("a")] = 2
|
|
assert_equal(1, h.size)
|
|
end
|
|
|
|
def assert_pathname_cmp(e, s1, s2)
|
|
p1 = Pathname.new(s1)
|
|
p2 = Pathname.new(s2)
|
|
r = p1 <=> p2
|
|
assert(e == r,
|
|
"#{p1.inspect} <=> #{p2.inspect}: <#{e}> expected but was <#{r}>")
|
|
end
|
|
def test_comparison
|
|
assert_pathname_cmp( 0, "a", "a")
|
|
assert_pathname_cmp( 1, "b", "a")
|
|
assert_pathname_cmp(-1, "a", "b")
|
|
ss = %w(
|
|
a
|
|
a/
|
|
a/b
|
|
a.
|
|
a0
|
|
)
|
|
s1 = ss.shift
|
|
ss.each {|s2|
|
|
assert_pathname_cmp(-1, s1, s2)
|
|
s1 = s2
|
|
}
|
|
end
|
|
|
|
def test_comparison_string
|
|
assert_equal(nil, Pathname.new("a") <=> "a")
|
|
assert_equal(nil, "a" <=> Pathname.new("a"))
|
|
end
|
|
|
|
def test_syntactical
|
|
assert_equal(true, Pathname.new("/").root?)
|
|
assert_equal(true, Pathname.new("//").root?)
|
|
assert_equal(true, Pathname.new("///").root?)
|
|
assert_equal(false, Pathname.new("").root?)
|
|
assert_equal(false, Pathname.new("a").root?)
|
|
end
|
|
|
|
def test_cleanpath
|
|
assert_equal('/', Pathname.new('/').cleanpath(true).to_s)
|
|
assert_equal('/', Pathname.new('//').cleanpath(true).to_s)
|
|
assert_equal('', Pathname.new('').cleanpath(true).to_s)
|
|
|
|
assert_equal('.', Pathname.new('.').cleanpath(true).to_s)
|
|
assert_equal('..', Pathname.new('..').cleanpath(true).to_s)
|
|
assert_equal('a', Pathname.new('a').cleanpath(true).to_s)
|
|
assert_equal('/', Pathname.new('/.').cleanpath(true).to_s)
|
|
assert_equal('/', Pathname.new('/..').cleanpath(true).to_s)
|
|
assert_equal('/a', Pathname.new('/a').cleanpath(true).to_s)
|
|
assert_equal('.', Pathname.new('./').cleanpath(true).to_s)
|
|
assert_equal('..', Pathname.new('../').cleanpath(true).to_s)
|
|
assert_equal('a/', Pathname.new('a/').cleanpath(true).to_s)
|
|
|
|
assert_equal('a/b', Pathname.new('a//b').cleanpath(true).to_s)
|
|
assert_equal('a/.', Pathname.new('a/.').cleanpath(true).to_s)
|
|
assert_equal('a/.', Pathname.new('a/./').cleanpath(true).to_s)
|
|
assert_equal('a/..', Pathname.new('a/../').cleanpath(true).to_s)
|
|
assert_equal('/a/.', Pathname.new('/a/.').cleanpath(true).to_s)
|
|
assert_equal('..', Pathname.new('./..').cleanpath(true).to_s)
|
|
assert_equal('..', Pathname.new('../.').cleanpath(true).to_s)
|
|
assert_equal('..', Pathname.new('./../').cleanpath(true).to_s)
|
|
assert_equal('..', Pathname.new('.././').cleanpath(true).to_s)
|
|
assert_equal('/', Pathname.new('/./..').cleanpath(true).to_s)
|
|
assert_equal('/', Pathname.new('/../.').cleanpath(true).to_s)
|
|
assert_equal('/', Pathname.new('/./../').cleanpath(true).to_s)
|
|
assert_equal('/', Pathname.new('/.././').cleanpath(true).to_s)
|
|
|
|
assert_equal('a/b/c', Pathname.new('a/b/c').cleanpath(true).to_s)
|
|
assert_equal('b/c', Pathname.new('./b/c').cleanpath(true).to_s)
|
|
assert_equal('a/c', Pathname.new('a/./c').cleanpath(true).to_s)
|
|
assert_equal('a/b/.', Pathname.new('a/b/.').cleanpath(true).to_s)
|
|
assert_equal('a/..', Pathname.new('a/../.').cleanpath(true).to_s)
|
|
|
|
assert_equal('/a', Pathname.new('/../.././../a').cleanpath(true).to_s)
|
|
assert_equal('a/b/../../../../c/../d',
|
|
Pathname.new('a/b/../../../../c/../d').cleanpath(true).to_s)
|
|
end
|
|
|
|
def test_cleanpath_no_symlink
|
|
assert_equal('/', Pathname.new('/').cleanpath.to_s)
|
|
assert_equal('/', Pathname.new('//').cleanpath.to_s)
|
|
assert_equal('', Pathname.new('').cleanpath.to_s)
|
|
|
|
assert_equal('.', Pathname.new('.').cleanpath.to_s)
|
|
assert_equal('..', Pathname.new('..').cleanpath.to_s)
|
|
assert_equal('a', Pathname.new('a').cleanpath.to_s)
|
|
assert_equal('/', Pathname.new('/.').cleanpath.to_s)
|
|
assert_equal('/', Pathname.new('/..').cleanpath.to_s)
|
|
assert_equal('/a', Pathname.new('/a').cleanpath.to_s)
|
|
assert_equal('.', Pathname.new('./').cleanpath.to_s)
|
|
assert_equal('..', Pathname.new('../').cleanpath.to_s)
|
|
assert_equal('a', Pathname.new('a/').cleanpath.to_s)
|
|
|
|
assert_equal('a/b', Pathname.new('a//b').cleanpath.to_s)
|
|
assert_equal('a', Pathname.new('a/.').cleanpath.to_s)
|
|
assert_equal('a', Pathname.new('a/./').cleanpath.to_s)
|
|
assert_equal('.', Pathname.new('a/../').cleanpath.to_s)
|
|
assert_equal('/a', Pathname.new('/a/.').cleanpath.to_s)
|
|
assert_equal('..', Pathname.new('./..').cleanpath.to_s)
|
|
assert_equal('..', Pathname.new('../.').cleanpath.to_s)
|
|
assert_equal('..', Pathname.new('./../').cleanpath.to_s)
|
|
assert_equal('..', Pathname.new('.././').cleanpath.to_s)
|
|
assert_equal('/', Pathname.new('/./..').cleanpath.to_s)
|
|
assert_equal('/', Pathname.new('/../.').cleanpath.to_s)
|
|
assert_equal('/', Pathname.new('/./../').cleanpath.to_s)
|
|
assert_equal('/', Pathname.new('/.././').cleanpath.to_s)
|
|
|
|
assert_equal('a/b/c', Pathname.new('a/b/c').cleanpath.to_s)
|
|
assert_equal('b/c', Pathname.new('./b/c').cleanpath.to_s)
|
|
assert_equal('a/c', Pathname.new('a/./c').cleanpath.to_s)
|
|
assert_equal('a/b', Pathname.new('a/b/.').cleanpath.to_s)
|
|
assert_equal('.', Pathname.new('a/../.').cleanpath.to_s)
|
|
|
|
assert_equal('/a', Pathname.new('/../.././../a').cleanpath.to_s)
|
|
assert_equal('../../d', Pathname.new('a/b/../../../../c/../d').cleanpath.to_s)
|
|
end
|
|
|
|
def test_destructive_update
|
|
path = Pathname.new("a")
|
|
path.to_s.replace "b"
|
|
assert_equal(Pathname.new("a"), path)
|
|
end
|
|
|
|
def test_null_character
|
|
assert_raise(ArgumentError) { Pathname.new("\0") }
|
|
end
|
|
|
|
def assert_relpath(result, dest, base)
|
|
assert_equal(Pathname.new(result),
|
|
Pathname.new(dest).relative_path_from(Pathname.new(base)))
|
|
end
|
|
|
|
def assert_relpath_err(dest, base)
|
|
assert_raise(ArgumentError) {
|
|
Pathname.new(dest).relative_path_from(Pathname.new(base))
|
|
}
|
|
end
|
|
|
|
def test_relative_path_from
|
|
assert_relpath("../a", "a", "b")
|
|
assert_relpath("../a", "a", "b/")
|
|
assert_relpath("../a", "a/", "b")
|
|
assert_relpath("../a", "a/", "b/")
|
|
assert_relpath("../a", "/a", "/b")
|
|
assert_relpath("../a", "/a", "/b/")
|
|
assert_relpath("../a", "/a/", "/b")
|
|
assert_relpath("../a", "/a/", "/b/")
|
|
|
|
assert_relpath("../b", "a/b", "a/c")
|
|
assert_relpath("../a", "../a", "../b")
|
|
|
|
assert_relpath("a", "a", ".")
|
|
assert_relpath("..", ".", "a")
|
|
|
|
assert_relpath(".", ".", ".")
|
|
assert_relpath(".", "..", "..")
|
|
assert_relpath("..", "..", ".")
|
|
|
|
assert_relpath("c/d", "/a/b/c/d", "/a/b")
|
|
assert_relpath("../..", "/a/b", "/a/b/c/d")
|
|
assert_relpath("../../../../e", "/e", "/a/b/c/d")
|
|
assert_relpath("../b/c", "a/b/c", "a/d")
|
|
|
|
assert_relpath("../a", "/../a", "/b")
|
|
assert_relpath("../../a", "../a", "b")
|
|
assert_relpath(".", "/a/../../b", "/b")
|
|
assert_relpath("..", "a/..", "a")
|
|
assert_relpath(".", "a/../b", "b")
|
|
|
|
assert_relpath("a", "a", "b/..")
|
|
assert_relpath("b/c", "b/c", "b/..")
|
|
|
|
assert_relpath_err("/", ".")
|
|
assert_relpath_err(".", "/")
|
|
assert_relpath_err("a", "..")
|
|
assert_relpath_err(".", "..")
|
|
end
|
|
|
|
def assert_pathname_plus(a, b, c)
|
|
a = Pathname.new(a)
|
|
b = Pathname.new(b)
|
|
c = Pathname.new(c)
|
|
d = b + c
|
|
assert(a == d,
|
|
"#{b.inspect} + #{c.inspect}: #{a.inspect} expected but was #{d.inspect}")
|
|
end
|
|
|
|
def test_plus
|
|
assert_pathname_plus('a/b', 'a', 'b')
|
|
assert_pathname_plus('a', 'a', '.')
|
|
assert_pathname_plus('b', '.', 'b')
|
|
assert_pathname_plus('.', '.', '.')
|
|
assert_pathname_plus('/b', 'a', '/b')
|
|
|
|
assert_pathname_plus('/', '/', '..')
|
|
assert_pathname_plus('.', 'a', '..')
|
|
assert_pathname_plus('a', 'a/b', '..')
|
|
assert_pathname_plus('../..', '..', '..')
|
|
assert_pathname_plus('/c', '/', '../c')
|
|
assert_pathname_plus('c', 'a', '../c')
|
|
assert_pathname_plus('a/c', 'a/b', '../c')
|
|
assert_pathname_plus('../../c', '..', '../c')
|
|
end
|
|
|
|
def test_taint
|
|
obj = Pathname.new("a"); assert_same(obj, obj.taint)
|
|
obj = Pathname.new("a"); assert_same(obj, obj.untaint)
|
|
|
|
assert_equal(false, Pathname.new("a" ) .tainted?)
|
|
assert_equal(false, Pathname.new("a" ) .to_s.tainted?)
|
|
assert_equal(true, Pathname.new("a" ).taint .tainted?)
|
|
assert_equal(true, Pathname.new("a" ).taint.to_s.tainted?)
|
|
assert_equal(true, Pathname.new("a".taint) .tainted?)
|
|
assert_equal(true, Pathname.new("a".taint) .to_s.tainted?)
|
|
assert_equal(true, Pathname.new("a".taint).taint .tainted?)
|
|
assert_equal(true, Pathname.new("a".taint).taint.to_s.tainted?)
|
|
|
|
str = "a"
|
|
path = Pathname.new(str)
|
|
str.taint
|
|
assert_equal(false, path .tainted?)
|
|
assert_equal(false, path.to_s.tainted?)
|
|
end
|
|
|
|
def test_untaint
|
|
obj = Pathname.new("a"); assert_same(obj, obj.untaint)
|
|
|
|
assert_equal(false, Pathname.new("a").taint.untaint .tainted?)
|
|
assert_equal(false, Pathname.new("a").taint.untaint.to_s.tainted?)
|
|
|
|
str = "a".taint
|
|
path = Pathname.new(str)
|
|
str.untaint
|
|
assert_equal(true, path .tainted?)
|
|
assert_equal(true, path.to_s.tainted?)
|
|
end
|
|
|
|
def test_freeze
|
|
obj = Pathname.new("a"); assert_same(obj, obj.freeze)
|
|
|
|
assert_equal(false, Pathname.new("a" ) .frozen?)
|
|
assert_equal(false, Pathname.new("a".freeze) .frozen?)
|
|
assert_equal(true, Pathname.new("a" ).freeze .frozen?)
|
|
assert_equal(true, Pathname.new("a".freeze).freeze .frozen?)
|
|
assert_equal(false, Pathname.new("a" ) .to_s.frozen?)
|
|
assert_equal(false, Pathname.new("a".freeze) .to_s.frozen?)
|
|
assert_equal(false, Pathname.new("a" ).freeze.to_s.frozen?)
|
|
assert_equal(false, Pathname.new("a".freeze).freeze.to_s.frozen?)
|
|
end
|
|
|
|
def test_to_s
|
|
str = "a"
|
|
obj = Pathname.new(str)
|
|
assert_equal(str, obj.to_s)
|
|
assert_not_same(str, obj.to_s)
|
|
assert_not_same(obj.to_s, obj.to_s)
|
|
end
|
|
|
|
def test_kernel_open
|
|
count = 0
|
|
stat1 = File.stat(__FILE__)
|
|
result = Kernel.open(Pathname.new(__FILE__)) {|f|
|
|
stat2 = f.stat
|
|
assert_equal(stat1.dev, stat2.dev)
|
|
assert_equal(stat1.ino, stat2.ino)
|
|
assert_equal(stat1.size, stat2.size)
|
|
count += 1
|
|
2
|
|
}
|
|
assert_equal(1, count)
|
|
assert_equal(2, result)
|
|
end
|
|
end
|
|
end
|