Class: Pathutil

Inherits:
Object
  • Object
show all
Extended by:
Forwardable::Extended, Helpers
Defined in:
lib/pathutil/version.rb,
lib/pathutil.rb,
lib/pathutil/helpers.rb

Overview

Frozen-string-literal: true Copyright: 2015-2016 Jordon Bedwell - MIT License Encoding: utf-8

Defined Under Namespace

Modules: Helpers

Constant Summary collapse

VERSION = 
"0.3.0"

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Helpers

load_yaml, make_tmpname

Constructor Details

#initialize(path) ⇒ Pathutil 



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# File 'lib/pathutil.rb', line 20

def initialize(path)
  return @path = path if path.is_a?(String)
  return @path = path.to_path if path.respond_to?(:to_path)
  return @path = path.to_s
end

Class Attribute Details

.encoding ⇒ Object

Note:

you are encouraged to override this if you need to.

Aliases the default system encoding to us so that we can do most read and write operations with that encoding, instead of being crazy.



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# File 'lib/pathutil.rb', line 676

def encoding
  return @encoding ||= begin
    Encoding.default_external
  end
end

Instance Attribute Details

#encoding ⇒ Object

See Also:

  • as this is an alias.


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# File 'lib/pathutil.rb', line 500

def encoding
  return @encoding ||= begin
    self.class.encoding
  end
end

Class Method Details

.normalize ⇒ Object

Normalize CRLF -> LF on Windows reads, to ease your troubles. Normalize LF -> CLRF on Windows write, to ease their troubles.



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# File 'lib/pathutil.rb', line 687

def normalize
  return @normalize ||= {
    :read  => Gem.win_platform?,
    :write => Gem.win_platform?
  }
end

.pwd ⇒ Object Also known as: gcwd, cwd

Get the current directory that Ruby knows about.



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# File 'lib/pathutil.rb', line 661

def pwd
  new(
    Dir.pwd
  )
end

.tmpdir(*args) ⇒ Object 



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# File 'lib/pathutil.rb', line 696

def tmpdir(*args)
  rtn = new(make_tmpname(*args)).tap(&:mkdir)
  ObjectSpace.define_finalizer(rtn, proc do
    rtn.rm_rf
  end)

  rtn
end

.tmpfile(*args) ⇒ Object 



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# File 'lib/pathutil.rb', line 707

def tmpfile(*args)
  rtn = new(make_tmpname(*args)).tap(&:touch)
  ObjectSpace.define_finalizer(rtn, proc do
    rtn.rm_rf
  end)

  rtn
end

Instance Method Details

#<(other) ⇒ Object

Strictly check to see if a path is behind other path but within it.

Examples:

Pathutil.new(“/”) < Pathutil.new(“/hello”) # => true





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# File 'lib/pathutil.rb', line 154

def <(other)
  mine, other = expanded_paths(other)
  return false if other == mine
  other.in_path?(mine)
end

#<=(other) ⇒ Object

Check to see if a path is behind the other path butt within it.

Examples:

Pathutil.new(“/hello”) < Pathutil.new(“/hello”) # => true

Pathutil.new(“/”) < Pathutil.new(“/hello”) # => true





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# File 'lib/pathutil.rb', line 168

def <=(other)
  mine, other = expanded_paths(other)
  return true if other == mine
  other.in_path?(mine)
end

#===(other) ⇒ Object

A stricter version of ‘==` that also makes sure the object matches.

See Also:

  • for more details.


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# File 'lib/pathutil.rb', line 116

def ===(other)
  other.is_a?(self.class) && @path == other
end

#>(other) ⇒ Object

Strictly checks to see if a path is deeper but within the path of the other.

Examples:

Pathutil.new(“/hello/world”) > Pathutil.new(“/hello”) # => true





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# File 'lib/pathutil.rb', line 141

def >(other)
  mine, other = expanded_paths(other)
  return false if other == mine
  mine.in_path?(other)
end

#>=(other) ⇒ Object

Checks to see if a path falls within a path and deeper or is the other.

Examples:

Pathutil.new(“/hello”) >= Pathutil.new(“/”) # => true

Pathutil.new(“/hello”) >= Pathutil.new(“/hello”) # => true





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# File 'lib/pathutil.rb', line 128

def >=(other)
  mine, other = expanded_paths(other)
  return true if other == mine
  mine.in_path?(other)
end

#absolute? ⇒ Boolean

Note:

“./” is considered relative.

Check to see if the path is absolute, as in: starts with “/”



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# File 'lib/pathutil.rb', line 180

def absolute?
  @path.start_with?("/")
end

#ascend {|path = self| ... } ⇒ Object

Break apart the path and yield each with the previous parts.

Examples:

Pathutil.new("/hello/world").ascend.to_a # => [
  "/", "/hello", "/hello/world"
]

Pathutil.new("/hello/world").ascend do |path|
  $stdout.puts path
end

/
/hello
/hello/world

Yields:

  • (path = self) 


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# File 'lib/pathutil.rb', line 203

def ascend
  unless block_given?
    return to_enum(
      __method__
    )
  end

  yield(
    path = self
  )

  while (new_path = path.dirname)
    if path == new_path || new_path == "."
      break
    else
      path = new_path
      yield  new_path
    end
  end

  nil
end

#binread(*args, **kwd) ⇒ Object

Binread took two steroid shots: it can normalize your string, and encode.



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# File 'lib/pathutil.rb', line 529

def binread(*args, **kwd)
  kwd[:encoding] ||= encoding

  if normalize[:read]
    File.binread(self, *args, kwd).encode({
      :universal_newline => true
    })

  else
    File.read(
      self, *args, kwd
    )
  end
end

#binwrite(data, *args, **kwd) ⇒ Object

Binwrite took two steroid shots: it can normalize your string, and encode.



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# File 'lib/pathutil.rb', line 586

def binwrite(data, *args, **kwd)
  kwd[:encoding] ||= encoding

  if normalize[:write]
    File.binwrite(self, data.encode(
      :crlf_newline => true
    ), *args, kwd)

  else
    File.binwrite(
      self, data, *args, kwd
    )
  end
end

#chdir ⇒ Object

Note:

you do not need to ship a block at all.

Move to the current directory temporarily (or for good) and do work son.



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# File 'lib/pathutil.rb', line 377

def chdir
  if !block_given?
    Dir.chdir(
      @path
    )

  else
    Dir.chdir @path do
      yield
    end
  end
end

#children ⇒ Object Also known as: entries

Grab all of the children from the current directory, including hidden.



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# File 'lib/pathutil.rb', line 327

def children
  ary = []

  Dir.foreach(@path) do |path|
    if path == "." || path == ".."
      next
    else
      path = self.class.new(File.join(@path, path))
      yield path if block_given?
      ary.push(
        path
      )
    end
  end

  ary
end

#descend ⇒ Object

Break apart the path in reverse order and descend into the path.

Examples:

Pathutil.new("/hello/world").descend.to_a # => [
  "/hello/world", "/hello", "/"
]

Pathutil.new("/hello/world").descend do |path|
  $stdout.puts path
end

/hello/world
/hello
/



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# File 'lib/pathutil.rb', line 245

def descend
  unless block_given?
    return to_enum(
      __method__
    )
  end

  ascend.to_a.reverse_each do |val|
    yield val
  end

  nil
end

#each_filename ⇒ Object

Splits the path returning each part (filename) back to you.



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# File 'lib/pathutil.rb', line 408

def each_filename
  return to_enum(__method__) unless block_given?
  @path.split(File::SEPARATOR).delete_if(&:empty?).each do |file|
    yield file
  end
end

#each_line ⇒ Object

Wraps ‘readlines` and allows you to yield on the result.

Examples:

Pathutil.new("/hello/world").each_line do |line|
  $stdout.puts line
end

Hello
World



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# File 'lib/pathutil.rb', line 271

def each_line
  return to_enum(__method__) unless block_given?
  readlines.each do |line|
    yield line
  end

  nil
end

#enforce_root(root) ⇒ Object

Expands the path and left joins the root to the path.



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# File 'lib/pathutil.rb', line 461

def enforce_root(root)
  curr, root = expanded_paths(root)
  if curr.in_path?(root)
    return curr

  else
    File.join(
      root, curr
    )
  end
end

#find ⇒ Object

Find all files without care and yield the given block.

See Also:

  • Find.find


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# File 'lib/pathutil.rb', line 396

def find
  return to_enum(__method__) unless block_given?
  Find.find @path do |val|
    yield self.class.new(val)
  end
end

#fnmatch?(matcher) ⇒ Boolean Also known as: fnmatch

Unlike traditional ‘fnmatch`, with this one `Regexp` is allowed.

Examples:

Pathutil.new(“/hello”).fnmatch?(“/hello”) # => true

Pathutil.new(“/hello”).fnmatch?(/h/) # => true

See Also:

  • for more information.


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# File 'lib/pathutil.rb', line 289

def fnmatch?(matcher)
  matcher.is_a?(Regexp) ? !!(self =~ matcher) : \
    File.fnmatch(self, matcher)
end

#glob(pattern, flags = 0) ⇒ Object

Allows you to glob however you wish to glob in the current ‘Pathutils`

See Also:

  • for a list of flags.


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# File 'lib/pathutil.rb', line 353

def glob(pattern, flags = 0)
  unless block_given?
    return to_enum(
      __method__, pattern, flags
    )
  end

  chdir do
    Dir.glob(pattern, flags).each do |file|
      yield self.class.new(
        File.join(@path, file)
      )
    end
  end

  nil
end

#in_path?(path) ⇒ Boolean

Allows you to check if the current path is in the path you want.



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# File 'lib/pathutil.rb', line 309

def in_path?(path)
  path = self.class.new(path).expand_path.split_path
  mine = (symlink?? expand_path.realpath : expand_path).split_path
  path.each_with_index { |part, index| return false if mine[index] != part }
  true
end

#inspect ⇒ Object 



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# File 'lib/pathutil.rb', line 318

def inspect
  "#<#{self.class}:#{@path}>"
end

#normalize ⇒ Object

See Also:

  • as this is an alias.


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# File 'lib/pathutil.rb', line 490

def normalize
  return @normalize ||= begin
    self.class.normalize
  end
end

#parent ⇒ Object 



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# File 'lib/pathutil.rb', line 417

def parent
  return self if @path == "/"
  self.class.new(absolute?? File.dirname(@path) : File.join(
    @path, ".."
  ))
end

#read(*args, **kwd) ⇒ Object

Read took two steroid shots: it can normalize your string, and encode.



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# File 'lib/pathutil.rb', line 510

def read(*args, **kwd)
  kwd[:encoding] ||= encoding

  if normalize[:read]
    File.read(self, *args, kwd).encode({
      :universal_newline => true
    })

  else
    File.read(
      self, *args, kwd
    )
  end
end

#read_json(throw_missing: false) ⇒ Object 



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# File 'lib/pathutil.rb', line 82

def read_json(throw_missing: false)
  JSON.parse(
    read
  )

rescue Errno::ENOENT
  throw_missing ? raise : (
    return {}
  )
end

#read_yaml(throw_missing: false, **kwd) ⇒ Object 



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# File 'lib/pathutil.rb', line 69

def read_yaml(throw_missing: false, **kwd)
  self.class.load_yaml(
    read, **kwd
  )

rescue Errno::ENOENT
  throw_missing ? raise : (
    return {}
  )
end

#readlines(*args, **kwd) ⇒ Object

Readlines took two steroid shots: it can normalize your string, and encode.



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# File 'lib/pathutil.rb', line 548

def readlines(*args, **kwd)
  kwd[:encoding] ||= encoding

  if normalize[:read]
    File.readlines(self, *args, kwd).encode({
      :universal_newline => true
    })

  else
    File.readlines(
      self, *args, kwd
    )
  end
end

#relative_path_from(from) ⇒ Object

A less complex version of ‘relative_path_from` that simply uses a `Regexp` and returns the full path if it cannot be relatively determined.



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# File 'lib/pathutil.rb', line 450

def relative_path_from(from)
  from = self.class.new(from).expand_path.gsub(%r!/$!, "")
  self.class.new(expand_path.gsub(%r!^#{from.regexp_escape}/!, ""))
end

#root? ⇒ Boolean

Allows you to quickly determine if the file is the root folder.



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# File 'lib/pathutil.rb', line 299

def root?
  self == File::SEPARATOR
end

#safe_copy(to, root: nil) ⇒ Object

Copy a directory, allowing symlinks if the link falls inside of the root.

Raises:

  • (ArgumentError) 


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# File 'lib/pathutil.rb', line 477

def safe_copy(to, root: nil)
  raise ArgumentError, "must give a root" unless root
  to = self.class.new(to)

  root = self.class.new(root)
  return safe_copy_directory(to, :root => root) if directory?
  safe_copy_file(to, :root => root)
end

#search_backwards(file, backwards: Float::INFINITY) ⇒ Object

Note:

It will return all results that it finds across all ascending paths.

Search backwards for a file (like Rakefile, _config.yml, opts.yml).

Examples:

Pathutil.new("~/").expand_path.search_backwards(".bashrc") => [
  #<Pathutil:/home/user/.bashrc>
]



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# File 'lib/pathutil.rb', line 38

def search_backwards(file, backwards: Float::INFINITY)
  ary = []

  ascend.with_index(1).each do |path, index|
    if index > backwards
      break

    else
      Dir.chdir path do
        if block_given?
          file = self.class.new(file)
          if yield(file)
            ary.push(
              file
            )
          end

        elsif File.exist?(file)
          ary.push(self.class.new(
            path.join(file)
          ))
        end
      end
    end
  end

  ary
end

#split ⇒ Object

Split the file into its dirname and basename, so you can do stuff.



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# File 'lib/pathutil.rb', line 429

def split
  File.split(@path).collect! do |path|
    self.class.new(path)
  end
end

#split_path ⇒ Object

Note:

The blank part is intentionally left there so that you can rejoin.

Splits the path into all parts so that you can do step by step comparisons

Examples:

Pathutil.new("/my/path").split_path # => [
  "", "my", "path"
]



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# File 'lib/pathutil.rb', line 103

def split_path
  @path.split(
    File::SEPARATOR
  )
end

#sub_ext(ext) ⇒ Object

Replace a files extension with your given extension.



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# File 'lib/pathutil.rb', line 439

def sub_ext(ext)
  self.class.new(@path.chomp(File.extname(@path)) + ext)
end

#write(data, *args, **kwd) ⇒ Object

Write took two steroid shots: it can normalize your string, and encode.



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# File 'lib/pathutil.rb', line 567

def write(data, *args, **kwd)
  kwd[:encoding] ||= encoding

  if normalize[:write]
    File.write(self, data.encode(
      :crlf_newline => true
    ), *args, kwd)

  else
    File.write(
      self, data, *args, kwd
    )
  end
end