Method: Roby::Application.unique_dirname

Defined in:
lib/roby/app.rb

.unique_dirname(base_dir, path_spec, date_tag = nil) ⇒ Object

Returns a unique directory name as a subdirectory of base_dir, based on path_spec. The generated name is of the form

<base_dir>/a/b/c/YYYYMMDD-HHMM-basename

if path_spec = "a/b/c/basename". A .<number> suffix is appended if the path already exists.



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# File 'lib/roby/app.rb', line 1770

def self.unique_dirname(base_dir, path_spec, date_tag = nil)
    if path_spec =~ %r{/$}
        basename = ""
        dirname = path_spec
    else
        basename = File.basename(path_spec)
        dirname  = File.dirname(path_spec)
    end

    date_tag ||= Time.now.strftime("%Y%m%d-%H%M")
    basename =
        if !basename.empty?
            "#{date_tag}-#{basename}"
        else
            date_tag
        end

    # Check if +basename+ already exists, and if it is the case add a
    # .x suffix to it
    full_path = File.expand_path(File.join(dirname, basename), base_dir)
    final_path = full_path
    i = 0
    while File.exist?(final_path)
        i += 1
        final_path = full_path + ".#{i}"
    end

    final_path
end