class Pathname
Pathname represents the name of a file or directory on the filesystem, but not the file itself.
The pathname depends on the Operating System: Unix, Windows, etc. This library works with pathnames of local OS, however non-Unix pathnames are supported experimentally.
A Pathname can be relative or absolute. It’s not until you try to reference the file that it even matters whether the file exists or not.
Pathname is immutable. It has no method for destructive update.
The goal of this class is to manipulate file path information in a neater way than standard Ruby provides. The examples below demonstrate the difference.
All functionality from File, FileTest, and some from Dir and FileUtils is included, in an unsurprising way. It is essentially a facade for all of these, and more.
Examples¶ ↑
Example 1: Using Pathname¶ ↑
require 'pathname' pn = Pathname.new("/usr/bin/ruby") size = pn.size # 27662 isdir = pn.directory? # false dir = pn.dirname # Pathname:/usr/bin base = pn.basename # Pathname:ruby dir, base = pn.split # [Pathname:/usr/bin, Pathname:ruby] data = pn.read pn.open { |f| _ } pn.each_line { |line| _ }
Example 2: Using standard Ruby¶ ↑
pn = "/usr/bin/ruby" size = File.size(pn) # 27662 isdir = File.directory?(pn) # false dir = File.dirname(pn) # "/usr/bin" base = File.basename(pn) # "ruby" dir, base = File.split(pn) # ["/usr/bin", "ruby"] data = File.read(pn) File.open(pn) { |f| _ } File.foreach(pn) { |line| _ }
Example 3: Special features¶ ↑
p1 = Pathname.new("/usr/lib") # Pathname:/usr/lib p2 = p1 + "ruby/1.8" # Pathname:/usr/lib/ruby/1.8 p3 = p1.parent # Pathname:/usr p4 = p2.relative_path_from(p3) # Pathname:lib/ruby/1.8 pwd = Pathname.pwd # Pathname:/home/gavin pwd.absolute? # true p5 = Pathname.new "." # Pathname:. p5 = p5 + "music/../articles" # Pathname:music/../articles p5.cleanpath # Pathname:articles p5.realpath # Pathname:/home/gavin/articles p5.children # [Pathname:/home/gavin/articles/linux, ...]
Breakdown of functionality¶ ↑
Core methods¶ ↑
These methods are effectively manipulating a String, because that’s all a path is. None of these access the file system except for mountpoint?, children, each_child, realdirpath and realpath.
-
+
File status predicate methods¶ ↑
These methods are a facade for FileTest:
File property and manipulation methods¶ ↑
These methods are a facade for File:
-
chown(owner, group) -
lchown(owner, group) -
fnmatch(pattern, *args) -
fnmatch?(pattern, *args) -
open(*args, &block) -
utime(atime, mtime)
Directory methods¶ ↑
These methods are a facade for Dir:
-
each_entry(&block)
IO¶ ↑
These methods are a facade for IO:
-
each_line(*args, &block)
Utilities¶ ↑
These methods are a mixture of Find, FileUtils, and others:
Method documentation¶ ↑
As the above section shows, most of the methods in Pathname are facades. The documentation for these methods generally just says, for instance, “See FileTest.writable?”, as you should be familiar with the original method anyway, and its documentation (e.g. through ri) will contain more information. In some cases, a brief description will follow.
Public Class Methods
Returns or yields Pathname objects.
Pathname.glob("lib/i*.rb") #=> [#<Pathname:lib/ipaddr.rb>, #<Pathname:lib/irb.rb>]
See Dir.glob.
static VALUE path_s_glob(int argc, VALUE *argv, VALUE klass) { VALUE args[3]; int n; n = rb_scan_args(argc, argv, "12", &args[0], &args[1], &args[2]); if (rb_block_given_p()) { return rb_block_call_kw(rb_cDir, id_glob, n, args, s_glob_i, klass, RB_PASS_CALLED_KEYWORDS); } else { VALUE ary; long i; ary = rb_funcallv_kw(rb_cDir, id_glob, n, args, RB_PASS_CALLED_KEYWORDS); ary = rb_convert_type(ary, T_ARRAY, "Array", "to_ary"); for (i = 0; i < RARRAY_LEN(ary); i++) { VALUE elt = RARRAY_AREF(ary, i); elt = rb_class_new_instance(1, &elt, klass); rb_ary_store(ary, i, elt); } return ary; } } Create a Pathname object from the given String (or String-like object). If path contains a NULL character (\0), an ArgumentError is raised.
static VALUE path_initialize(VALUE self, VALUE arg) { VALUE str; if (RB_TYPE_P(arg, T_STRING)) { str = arg; } else { str = rb_check_funcall(arg, id_to_path, 0, NULL); if (str == Qundef) str = arg; StringValue(str); } if (memchr(RSTRING_PTR(str), '\0', RSTRING_LEN(str))) rb_raise(rb_eArgError, "pathname contains null byte"); str = rb_obj_dup(str); set_strpath(self, str); return self; } Public Instance Methods
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 # / is aliased to +. p4 = p1 / "bin/ruby" # Pathname:/usr/bin/ruby p5 = p1 / "/etc/passwd" # Pathname:/etc/passwd
This method doesn’t access the file system; it is pure string manipulation.
# File ext/pathname/lib/pathname.rb, line 352 def +(other) other = Pathname.new(other) unless Pathname === other Pathname.new(plus(@path, other.to_s)) end
Provides a case-sensitive comparison operator for pathnames.
Pathname.new('/usr') <=> Pathname.new('/usr/bin') #=> -1 Pathname.new('/usr/bin') <=> Pathname.new('/usr/bin') #=> 0 Pathname.new('/usr/bin') <=> Pathname.new('/USR/BIN') #=> 1
It will return -1, 0 or 1 depending on the value of the left argument relative to the right argument. Or it will return nil if the arguments are not comparable.
static VALUE path_cmp(VALUE self, VALUE other) { VALUE s1, s2; char *p1, *p2; char *e1, *e2; if (!rb_obj_is_kind_of(other, rb_cPathname)) return Qnil; s1 = get_strpath(self); s2 = get_strpath(other); p1 = RSTRING_PTR(s1); p2 = RSTRING_PTR(s2); e1 = p1 + RSTRING_LEN(s1); e2 = p2 + RSTRING_LEN(s2); while (p1 < e1 && p2 < e2) { int c1, c2; c1 = (unsigned char)*p1++; c2 = (unsigned char)*p2++; if (c1 == '/') c1 = '\0'; if (c2 == '/') c2 = '\0'; if (c1 != c2) { if (c1 < c2) return INT2FIX(-1); else return INT2FIX(1); } } if (p1 < e1) return INT2FIX(1); if (p2 < e2) return INT2FIX(-1); return INT2FIX(0); } Compare this pathname with other. The comparison is string-based. Be aware that two different paths (foo.txt and ./foo.txt) can refer to the same file.
static VALUE path_eq(VALUE self, VALUE other) { if (!rb_obj_is_kind_of(other, rb_cPathname)) return Qfalse; return rb_str_equal(get_strpath(self), get_strpath(other)); } Compare this pathname with other. The comparison is string-based. Be aware that two different paths (foo.txt and ./foo.txt) can refer to the same file.
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
# File ext/pathname/lib/pathname.rb, line 231 def absolute? ABSOLUTE_PATH.match? @path 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>
Returns an Enumerator if no block was given.
enum = Pathname.new("/usr/bin/ruby").ascend # ... do stuff ... enum.each { |e| ... } # yields Pathnames /usr/bin/ruby, /usr/bin, /usr, and /. It doesn’t access the filesystem.
# File ext/pathname/lib/pathname.rb, line 328 def ascend return to_enum(__method__) unless block_given? 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
Returns the last access time for the file.
See File.atime.
static VALUE path_atime(VALUE self) { return rb_funcall(rb_cFile, id_atime, 1, get_strpath(self)); } Returns the last component of the path.
See File.basename.
static VALUE path_basename(int argc, VALUE *argv, VALUE self) { VALUE str = get_strpath(self); VALUE fext; if (rb_scan_args(argc, argv, "01", &fext) == 0) str = rb_funcall(rb_cFile, id_basename, 1, str); else str = rb_funcall(rb_cFile, id_basename, 2, str, fext); return rb_class_new_instance(1, &str, rb_obj_class(self)); } Returns all the bytes from the file, or the first N if specified.
See File.binread.
static VALUE path_binread(int argc, VALUE *argv, VALUE self) { VALUE args[3]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "02", &args[1], &args[2]); return rb_funcallv(rb_cFile, id_binread, 1+n, args); } Writes contents to the file, opening it in binary mode.
See File.binwrite.
static VALUE path_binwrite(int argc, VALUE *argv, VALUE self) { VALUE args[4]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "03", &args[1], &args[2], &args[3]); return rb_funcallv_kw(rb_cFile, id_binwrite, 1+n, args, RB_PASS_CALLED_KEYWORDS); } Returns the birth time for the file. If the platform doesn’t have birthtime, raises NotImplementedError.
See File.birthtime.
static VALUE path_birthtime(VALUE self) { return rb_funcall(rb_cFile, id_birthtime, 1, get_strpath(self)); } See FileTest.blockdev?.
static VALUE path_blockdev_p(VALUE self) { return rb_funcall(rb_mFileTest, id_blockdev_p, 1, get_strpath(self)); } See FileTest.chardev?.
static VALUE path_chardev_p(VALUE self) { return rb_funcall(rb_mFileTest, id_chardev_p, 1, get_strpath(self)); } 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.
# File ext/pathname/lib/pathname.rb, line 443 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
Changes file permissions.
See File.chmod.
static VALUE path_chmod(VALUE self, VALUE mode) { return rb_funcall(rb_cFile, id_chmod, 2, mode, get_strpath(self)); } Change owner and group of the file.
See File.chown.
static VALUE path_chown(VALUE self, VALUE owner, VALUE group) { return rb_funcall(rb_cFile, id_chown, 3, owner, group, get_strpath(self)); } 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.
# File ext/pathname/lib/pathname.rb, line 92 def cleanpath(consider_symlink=false) if consider_symlink cleanpath_conservative else cleanpath_aggressive end end
Returns the last change time, using directory information, not the file itself.
See File.ctime.
static VALUE path_ctime(VALUE self) { return rb_funcall(rb_cFile, id_ctime, 1, get_strpath(self)); } Removes a file or directory, using File.unlink if self is a file, or Dir.unlink as necessary.
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>
Returns an Enumerator if no block was given.
enum = Pathname.new("/usr/bin/ruby").descend # ... do stuff ... enum.each { |e| ... } # yields Pathnames /, /usr, /usr/bin, and /usr/bin/ruby. It doesn’t access the filesystem.
# File ext/pathname/lib/pathname.rb, line 295 def descend return to_enum(__method__) unless block_given? vs = [] ascend {|v| vs << v } vs.reverse_each {|v| yield v } nil end
See FileTest.directory?.
static VALUE path_directory_p(VALUE self) { return rb_funcall(rb_mFileTest, id_directory_p, 1, get_strpath(self)); } Returns all but the last component of the path.
See File.dirname.
static VALUE path_dirname(VALUE self) { VALUE str = get_strpath(self); str = rb_funcall(rb_cFile, id_dirname, 1, str); return rb_class_new_instance(1, &str, rb_obj_class(self)); } 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.
# File ext/pathname/lib/pathname.rb, line 493 def each_child(with_directory=true, &b) children(with_directory).each(&b) end
Iterates over the entries (files and subdirectories) in the directory, yielding a Pathname object for each entry.
static VALUE path_each_entry(VALUE self) { VALUE args[1]; args[0] = get_strpath(self); return rb_block_call(rb_cDir, id_foreach, 1, args, each_entry_i, rb_obj_class(self)); } 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". # File ext/pathname/lib/pathname.rb, line 263 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 each line in the file and yields a String object for each.
static VALUE path_each_line(int argc, VALUE *argv, VALUE self) { VALUE args[4]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "03", &args[1], &args[2], &args[3]); if (rb_block_given_p()) { return rb_block_call_kw(rb_cFile, id_foreach, 1+n, args, 0, 0, RB_PASS_CALLED_KEYWORDS); } else { return rb_funcallv_kw(rb_cFile, id_foreach, 1+n, args, RB_PASS_CALLED_KEYWORDS); } } Tests the file is empty.
See Dir#empty? and FileTest.empty?.
static VALUE path_empty_p(VALUE self) { VALUE path = get_strpath(self); if (RTEST(rb_funcall(rb_mFileTest, id_directory_p, 1, path))) return rb_funcall(rb_cDir, id_empty_p, 1, path); else return rb_funcall(rb_mFileTest, id_empty_p, 1, path); } Return the entries (files and subdirectories) in the directory, each as a Pathname object.
The results contains just the names in the directory, without any trailing slashes or recursive look-up.
pp Pathname.new('/usr/local').entries #=> [#<Pathname:share>, # #<Pathname:lib>, # #<Pathname:..>, # #<Pathname:include>, # #<Pathname:etc>, # #<Pathname:bin>, # #<Pathname:man>, # #<Pathname:games>, # #<Pathname:.>, # #<Pathname:sbin>, # #<Pathname:src>]
The result may contain the current directory #<Pathname:.> and the parent directory #<Pathname:..>.
If you don’t want . and .. and want directories, consider Pathname#children.
static VALUE path_entries(VALUE self) { VALUE klass, str, ary; long i; klass = rb_obj_class(self); str = get_strpath(self); ary = rb_funcall(rb_cDir, id_entries, 1, str); ary = rb_convert_type(ary, T_ARRAY, "Array", "to_ary"); for (i = 0; i < RARRAY_LEN(ary); i++) { VALUE elt = RARRAY_AREF(ary, i); elt = rb_class_new_instance(1, &elt, klass); rb_ary_store(ary, i, elt); } return ary; } Compare this pathname with other. The comparison is string-based. Be aware that two different paths (foo.txt and ./foo.txt) can refer to the same file.
See FileTest.executable?.
static VALUE path_executable_p(VALUE self) { return rb_funcall(rb_mFileTest, id_executable_p, 1, get_strpath(self)); } See FileTest.executable_real?.
static VALUE path_executable_real_p(VALUE self) { return rb_funcall(rb_mFileTest, id_executable_real_p, 1, get_strpath(self)); } See FileTest.exist?.
static VALUE path_exist_p(VALUE self) { return rb_funcall(rb_mFileTest, id_exist_p, 1, get_strpath(self)); } Returns the absolute path for the file.
See File.expand_path.
static VALUE path_expand_path(int argc, VALUE *argv, VALUE self) { VALUE str = get_strpath(self); VALUE dname; if (rb_scan_args(argc, argv, "01", &dname) == 0) str = rb_funcall(rb_cFile, id_expand_path, 1, str); else str = rb_funcall(rb_cFile, id_expand_path, 2, str, dname); return rb_class_new_instance(1, &str, rb_obj_class(self)); } Returns the file’s extension.
See File.extname.
static VALUE path_extname(VALUE self) { VALUE str = get_strpath(self); return rb_funcall(rb_cFile, id_extname, 1, str); } See FileTest.file?.
static VALUE path_file_p(VALUE self) { return rb_funcall(rb_mFileTest, id_file_p, 1, get_strpath(self)); } 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
# File ext/pathname/lib/pathname.rb, line 565 def find(ignore_error: true) # :yield: pathname return to_enum(__method__, ignore_error: ignore_error) unless block_given? require 'find' if @path == '.' Find.find(@path, ignore_error: ignore_error) {|f| yield self.class.new(f.sub(%r{\A\./}, '')) } else Find.find(@path, ignore_error: ignore_error) {|f| yield self.class.new(f) } end end
Return true if the receiver matches the given pattern.
See File.fnmatch.
static VALUE path_fnmatch(int argc, VALUE *argv, VALUE self) { VALUE str = get_strpath(self); VALUE pattern, flags; if (rb_scan_args(argc, argv, "11", &pattern, &flags) == 1) return rb_funcall(rb_cFile, id_fnmatch, 2, pattern, str); else return rb_funcall(rb_cFile, id_fnmatch, 3, pattern, str, flags); } Return true if the receiver matches the given pattern.
See File.fnmatch.
Freezes this Pathname.
See Object.freeze.
static VALUE path_freeze(VALUE self) { rb_call_super(0, 0); rb_str_freeze(get_strpath(self)); return self; } Returns “type” of file (“file”, “directory”, etc).
See File.ftype.
static VALUE path_ftype(VALUE self) { return rb_funcall(rb_cFile, id_ftype, 1, get_strpath(self)); } Returns or yields Pathname objects.
Pathname("ruby-2.4.2").glob("R*.md") #=> [#<Pathname:ruby-2.4.2/README.md>, #<Pathname:ruby-2.4.2/README.ja.md>]
See Dir.glob. This method uses the base keyword argument of Dir.glob.
static VALUE path_glob(int argc, VALUE *argv, VALUE self) { VALUE args[3]; int n; n = rb_scan_args(argc, argv, "11", &args[0], &args[1]); if (n == 1) args[1] = INT2FIX(0); args[2] = rb_hash_new(); rb_hash_aset(args[2], ID2SYM(id_base), get_strpath(self)); n = 3; if (rb_block_given_p()) { return rb_block_call_kw(rb_cDir, id_glob, n, args, glob_i, self, RB_PASS_KEYWORDS); } else { VALUE ary; long i; ary = rb_funcallv_kw(rb_cDir, id_glob, n, args, RB_PASS_KEYWORDS); ary = rb_convert_type(ary, T_ARRAY, "Array", "to_ary"); for (i = 0; i < RARRAY_LEN(ary); i++) { VALUE elt = RARRAY_AREF(ary, i); elt = rb_funcall(self, '+', 1, elt); rb_ary_store(ary, i, elt); } return ary; } } See FileTest.grpowned?.
static VALUE path_grpowned_p(VALUE self) { return rb_funcall(rb_mFileTest, id_grpowned_p, 1, get_strpath(self)); } 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
# File ext/pathname/lib/pathname.rb, line 410 def join(*args) return self if args.empty? 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? } self + result end
Same as Pathname.chmod, but does not follow symbolic links.
See File.lchmod.
static VALUE path_lchmod(VALUE self, VALUE mode) { return rb_funcall(rb_cFile, id_lchmod, 2, mode, get_strpath(self)); } Same as Pathname.chown, but does not follow symbolic links.
See File.lchown.
static VALUE path_lchown(VALUE self, VALUE owner, VALUE group) { return rb_funcall(rb_cFile, id_lchown, 3, owner, group, get_strpath(self)); } See File.lstat.
static VALUE path_lstat(VALUE self) { return rb_funcall(rb_cFile, id_lstat, 1, get_strpath(self)); } Creates a hard link at pathname.
See File.link.
static VALUE path_make_link(VALUE self, VALUE old) { return rb_funcall(rb_cFile, id_link, 2, old, get_strpath(self)); } Creates a symbolic link.
See File.symlink.
static VALUE path_make_symlink(VALUE self, VALUE old) { return rb_funcall(rb_cFile, id_symlink, 2, old, get_strpath(self)); } Create the referenced directory.
See Dir.mkdir.
static VALUE path_mkdir(int argc, VALUE *argv, VALUE self) { VALUE str = get_strpath(self); VALUE vmode; if (rb_scan_args(argc, argv, "01", &vmode) == 0) return rb_funcall(rb_cDir, id_mkdir, 1, str); else return rb_funcall(rb_cDir, id_mkdir, 2, str, vmode); } Creates a full path, including any intermediate directories that don’t yet exist.
See FileUtils.mkpath and FileUtils.mkdir_p
# File ext/pathname/lib/pathname.rb, line 584 def mkpath(mode: nil) FileUtils.mkpath(@path, mode: mode) nil end
Returns true if self points to a mountpoint.
# File ext/pathname/lib/pathname.rb, line 199 def mountpoint? begin stat1 = self.lstat stat2 = self.parent.lstat stat1.dev != stat2.dev || stat1.ino == stat2.ino rescue Errno::ENOENT false end end
Returns the last modified time of the file.
See File.mtime.
static VALUE path_mtime(VALUE self) { return rb_funcall(rb_cFile, id_mtime, 1, get_strpath(self)); } Opens the file for reading or writing.
See File.open.
static VALUE path_open(int argc, VALUE *argv, VALUE self) { VALUE args[4]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "03", &args[1], &args[2], &args[3]); if (rb_block_given_p()) { return rb_block_call_kw(rb_cFile, id_open, 1+n, args, 0, 0, RB_PASS_CALLED_KEYWORDS); } else { return rb_funcallv_kw(rb_cFile, id_open, 1+n, args, RB_PASS_CALLED_KEYWORDS); } } Opens the referenced directory.
See Dir.open.
static VALUE path_opendir(VALUE self) { VALUE args[1]; args[0] = get_strpath(self); return rb_block_call(rb_cDir, id_open, 1, args, 0, 0); } See FileTest.owned?.
static VALUE path_owned_p(VALUE self) { return rb_funcall(rb_mFileTest, id_owned_p, 1, get_strpath(self)); } Returns the parent directory.
This is same as self + '..'.
# File ext/pathname/lib/pathname.rb, line 194 def parent self + '..' end
See FileTest.pipe?.
static VALUE path_pipe_p(VALUE self) { return rb_funcall(rb_mFileTest, id_pipe_p, 1, get_strpath(self)); } Returns all data from the file, or the first N bytes if specified.
See File.read.
static VALUE path_read(int argc, VALUE *argv, VALUE self) { VALUE args[4]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "03", &args[1], &args[2], &args[3]); return rb_funcallv_kw(rb_cFile, id_read, 1+n, args, RB_PASS_CALLED_KEYWORDS); } See FileTest.readable?.
static VALUE path_readable_p(VALUE self) { return rb_funcall(rb_mFileTest, id_readable_p, 1, get_strpath(self)); } static VALUE path_readable_real_p(VALUE self) { return rb_funcall(rb_mFileTest, id_readable_real_p, 1, get_strpath(self)); } Returns all the lines from the file.
See File.readlines.
static VALUE path_readlines(int argc, VALUE *argv, VALUE self) { VALUE args[4]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "03", &args[1], &args[2], &args[3]); return rb_funcallv_kw(rb_cFile, id_readlines, 1+n, args, RB_PASS_CALLED_KEYWORDS); } Read symbolic link.
See File.readlink.
static VALUE path_readlink(VALUE self) { VALUE str; str = rb_funcall(rb_cFile, id_readlink, 1, get_strpath(self)); return rb_class_new_instance(1, &str, rb_obj_class(self)); } Returns the real (absolute) pathname of self in the actual filesystem.
Does not contain symlinks or useless dots, .. and ..
The last component of the real pathname can be nonexistent.
static VALUE path_realdirpath(int argc, VALUE *argv, VALUE self) { VALUE basedir, str; rb_scan_args(argc, argv, "01", &basedir); str = rb_funcall(rb_cFile, id_realdirpath, 2, get_strpath(self), basedir); return rb_class_new_instance(1, &str, rb_obj_class(self)); } Returns the real (absolute) pathname for self in the actual filesystem.
Does not contain symlinks or useless dots, .. and ..
All components of the pathname must exist when this method is called.
static VALUE path_realpath(int argc, VALUE *argv, VALUE self) { VALUE basedir, str; rb_scan_args(argc, argv, "01", &basedir); str = rb_funcall(rb_cFile, id_realpath, 2, get_strpath(self), basedir); return rb_class_new_instance(1, &str, rb_obj_class(self)); } 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
# File ext/pathname/lib/pathname.rb, line 246 def relative? !absolute? 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.
Note that this method does not handle situations where the case sensitivity of the filesystem in use differs from the operating system default.
# File ext/pathname/lib/pathname.rb, line 511 def relative_path_from(base_directory) base_directory = Pathname.new(base_directory) unless base_directory.is_a? Pathname 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
Rename the file.
See File.rename.
static VALUE path_rename(VALUE self, VALUE to) { return rb_funcall(rb_cFile, id_rename, 2, get_strpath(self), to); } Remove the referenced directory.
See Dir.rmdir.
static VALUE path_rmdir(VALUE self) { return rb_funcall(rb_cDir, id_rmdir, 1, get_strpath(self)); } Recursively deletes a directory, including all directories beneath it.
See FileUtils.rm_r
# File ext/pathname/lib/pathname.rb, line 592 def rmtree # The name "rmtree" is borrowed from File::Path of Perl. # File::Path provides "mkpath" and "rmtree". FileUtils.rm_r(@path) nil 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 /usr/...
# File ext/pathname/lib/pathname.rb, line 216 def root? chop_basename(@path) == nil && /#{SEPARATOR_PAT}/o.match?(@path) end
See FileTest.setgid?.
static VALUE path_setgid_p(VALUE self) { return rb_funcall(rb_mFileTest, id_setgid_p, 1, get_strpath(self)); } See FileTest.setuid?.
static VALUE path_setuid_p(VALUE self) { return rb_funcall(rb_mFileTest, id_setuid_p, 1, get_strpath(self)); } See FileTest.size.
static VALUE path_size(VALUE self) { return rb_funcall(rb_mFileTest, id_size, 1, get_strpath(self)); } See FileTest.size?.
static VALUE path_size_p(VALUE self) { return rb_funcall(rb_mFileTest, id_size_p, 1, get_strpath(self)); } See FileTest.socket?.
static VALUE path_socket_p(VALUE self) { return rb_funcall(rb_mFileTest, id_socket_p, 1, get_strpath(self)); } Returns the dirname and the basename in an Array.
See File.split.
static VALUE path_split(VALUE self) { VALUE str = get_strpath(self); VALUE ary, dirname, basename; ary = rb_funcall(rb_cFile, id_split, 1, str); Check_Type(ary, T_ARRAY); dirname = rb_ary_entry(ary, 0); basename = rb_ary_entry(ary, 1); dirname = rb_class_new_instance(1, &dirname, rb_obj_class(self)); basename = rb_class_new_instance(1, &basename, rb_obj_class(self)); return rb_ary_new3(2, dirname, basename); } Returns a File::Stat object.
See File.stat.
static VALUE path_stat(VALUE self) { return rb_funcall(rb_cFile, id_stat, 1, get_strpath(self)); } See FileTest.sticky?.
static VALUE path_sticky_p(VALUE self) { return rb_funcall(rb_mFileTest, id_sticky_p, 1, get_strpath(self)); } Return a pathname which is substituted by String#sub.
path1 = Pathname.new('/usr/bin/perl') path1.sub('perl', 'ruby') #=> #<Pathname:/usr/bin/ruby>
static VALUE path_sub(int argc, VALUE *argv, VALUE self) { VALUE str = get_strpath(self); if (rb_block_given_p()) { str = rb_block_call(str, id_sub, argc, argv, 0, 0); } else { str = rb_funcallv(str, id_sub, argc, argv); } return rb_class_new_instance(1, &str, rb_obj_class(self)); } Return a pathname with repl added as a suffix to the basename.
If self has no extension part, repl is appended.
Pathname.new('/usr/bin/shutdown').sub_ext('.rb') #=> #<Pathname:/usr/bin/shutdown.rb>
static VALUE path_sub_ext(VALUE self, VALUE repl) { VALUE str = get_strpath(self); VALUE str2; long extlen; const char *ext; const char *p; StringValue(repl); p = RSTRING_PTR(str); extlen = RSTRING_LEN(str); ext = ruby_enc_find_extname(p, &extlen, rb_enc_get(str)); if (ext == NULL) { ext = p + RSTRING_LEN(str); } else if (extlen <= 1) { ext += extlen; } str2 = rb_str_subseq(str, 0, ext-p); rb_str_append(str2, repl); return rb_class_new_instance(1, &str2, rb_obj_class(self)); } See FileTest.symlink?.
static VALUE path_symlink_p(VALUE self) { return rb_funcall(rb_mFileTest, id_symlink_p, 1, get_strpath(self)); } See IO.sysopen.
static VALUE path_sysopen(int argc, VALUE *argv, VALUE self) { VALUE args[3]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "02", &args[1], &args[2]); return rb_funcallv(rb_cIO, id_sysopen, 1+n, args); } Returns pathname. This method is deprecated and will be removed in Ruby 3.2.
static VALUE path_taint(VALUE self) { rb_warn("Pathname#taint is deprecated and will be removed in Ruby 3.2."); return self; } Return the path as a String.
to_path is implemented so Pathname objects are usable with File.open, etc.
Return the path as a String.
to_path is implemented so Pathname objects are usable with File.open, etc.
static VALUE path_to_s(VALUE self) { return rb_obj_dup(get_strpath(self)); } Truncates the file to length bytes.
See File.truncate.
static VALUE path_truncate(VALUE self, VALUE length) { return rb_funcall(rb_cFile, id_truncate, 2, get_strpath(self), length); } Removes a file or directory, using File.unlink if self is a file, or Dir.unlink as necessary.
static VALUE path_unlink(VALUE self) { VALUE eENOTDIR = rb_const_get_at(rb_mErrno, id_ENOTDIR); VALUE str = get_strpath(self); return rb_rescue2(unlink_body, str, unlink_rescue, str, eENOTDIR, (VALUE)0); } Returns pathname. This method is deprecated and will be removed in Ruby 3.2.
static VALUE path_untaint(VALUE self) { rb_warn("Pathname#untaint is deprecated and will be removed in Ruby 3.2."); return self; } Update the access and modification times of the file.
See File.utime.
static VALUE path_utime(VALUE self, VALUE atime, VALUE mtime) { return rb_funcall(rb_cFile, id_utime, 3, atime, mtime, get_strpath(self)); } static VALUE path_world_readable_p(VALUE self) { return rb_funcall(rb_mFileTest, id_world_readable_p, 1, get_strpath(self)); } static VALUE path_world_writable_p(VALUE self) { return rb_funcall(rb_mFileTest, id_world_writable_p, 1, get_strpath(self)); } See FileTest.writable?.
static VALUE path_writable_p(VALUE self) { return rb_funcall(rb_mFileTest, id_writable_p, 1, get_strpath(self)); } static VALUE path_writable_real_p(VALUE self) { return rb_funcall(rb_mFileTest, id_writable_real_p, 1, get_strpath(self)); } Writes contents to the file.
See File.write.
static VALUE path_write(int argc, VALUE *argv, VALUE self) { VALUE args[4]; int n; args[0] = get_strpath(self); n = rb_scan_args(argc, argv, "03", &args[1], &args[2], &args[3]); return rb_funcallv_kw(rb_cFile, id_write, 1+n, args, RB_PASS_CALLED_KEYWORDS); } See FileTest.zero?.
static VALUE path_zero_p(VALUE self) { return rb_funcall(rb_mFileTest, id_zero_p, 1, get_strpath(self)); }