pushdir(path = nil, verbose = @verbose)
public
Pushes the current directory to the directory stack, changing the current
directory to path.
If path is omitted, it exchanges its current directory and the top
of its directory stack.
If a block is given, it restores the current directory when the block ends.
# File lib/shell.rb, line 297
def pushdir(path = nil, verbose = @verbose)
check_point
if iterator?
notify("pushdir(with block) #{path}") if verbose
pushdir(path, nil)
begin
yield
ensure
popdir
end
elsif path
notify("pushdir #{path}") if verbose
@dir_stack.push @cwd
chdir(path, nil)
notify "dir stack: [#{@dir_stack.join ', '}]"
self
else
notify("pushdir") if verbose
if pop = @dir_stack.pop
@dir_stack.push @cwd
chdir pop
notify "dir stack: [#{@dir_stack.join ', '}]"
self
else
Shell.Fail DirStackEmpty
end
end
Void.new(self)
end