Module: VirtFS::ContextSwitchClassMethods

Included in:
VirtFS
Defined in:
lib/virtfs/context_switch_class_methods.rb

Instance Method Summary collapse

Instance Method Details

#context ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 7

def context
  context_manager.current.current_context
end

#context! ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 11

def context!
  context_manager.current!.current_context
end

#context_manager ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 3

def context_manager
  ContextManager
end

#cwd=(dir) ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 27

def cwd=(dir)
  context.restore_cwd_root(dir, nil)
end

#dir_chdir(dir) ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 40

def dir_chdir(dir)
  context.chdir(dir)
end

#dir_chroot(dir) ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 36

def dir_chroot(dir)
  context.chroot(dir)
end

#dir_getwd ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 44

def dir_getwd
  context.getwd
end

#expand_links(p, include_last = true) ⇒ Object

Expand symbolic links in the path. This must be done here, because a symlink in one file system can point to a file in another filesystem.



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# File 'lib/virtfs/context_switch_class_methods.rb', line 60

def expand_links(p, include_last = true)
  context.expand_links(p, include_last)
end

#fs_call(fs, path = nil, &block) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Invoke block withing the given filesystem context

Parameters:

  • fs (VirtFS::FS) —

    filesystem intstance through which to invoke block

  • path (String) (defaults to: nil) —

    path to specify to block

Raises:



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# File 'lib/virtfs/context_switch_class_methods.rb', line 78

def fs_call(fs, path = nil, &block)
  block.arity < 1 ? fs.instance_eval(&block) : fs.instance_exec(path, &block)
rescue NoMethodError => err
  STDOUT.puts err.to_s
  STDOUT.puts err.backtrace.join("\n")
  raise VirtFS::NotImplementedError.new(fs, err.name)
end

#fs_lookup_call(path, raise_full_path = false, include_last = true, &block) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Invoke block using fully resolved filesystem path

See Also:



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# File 'lib/virtfs/context_switch_class_methods.rb', line 91

def fs_lookup_call(path, raise_full_path = false, include_last = true, &block)
  fs, p = path_lookup(path, raise_full_path, include_last)
  fs_call(fs, p, &block)
end

#mount(fs_instance, mount_point) ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 15

def mount(fs_instance, mount_point)
  context.mount(fs_instance, mount_point)
end

#mounted?(mount_point) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/virtfs/context_switch_class_methods.rb', line 23

def mounted?(mount_point)
  context.mounted?(mount_point)
end

#normalize_path(p, relative_to = nil) ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 64

def normalize_path(p, relative_to = nil)
  # When running on windows, File.expand_path will add a drive letter.
  # Remove it if it's there.
  VfsRealFile.expand_path(p, relative_to || context.getwd).sub(/^[a-zA-Z]:/, "") # XXX
end

#path_lookup(path, raise_full_path = false, include_last = true) ⇒ Object

Expand symbolic links and perform mount indirection look up.



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# File 'lib/virtfs/context_switch_class_methods.rb', line 51

def path_lookup(path, raise_full_path = false, include_last = true)
  context.path_lookup(path, raise_full_path, include_last)
end

#root ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 31

def root
  _cwd, root = context.cwd_root
  root
end

#umount(mount_point) ⇒ Object 



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# File 'lib/virtfs/context_switch_class_methods.rb', line 19

def umount(mount_point)
  context.umount(mount_point)
end