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Contents
require 'dply/helper'
module Dply
class Linker
include Helper
def initialize(src_dir, dest_dir, map: {})
verify_absolute src_dir, dest_dir
@src_dir = src_dir
@dest_dir = dest_dir
@map = map
validate_map!
end
def create_symlinks
link_pairs.each do |src, dest|
relative_source = src_relative_to_dest(src, dest)
logger.debug "linking #{dest} -> #{src}" if logger.debug?
error "source #{src} doesn't exist" if not src.exist?
symlink(relative_source, dest)
end
end
private
def link_pairs
Enumerator.new do |y|
@map.each do |dest, src|
src_path = Pathname.new "#{@src_dir}/#{src}"
dest_path = Pathname.new "#{@dest_dir}/#{dest}"
y.yield [src_path, dest_path]
end
end
end
def src_relative_to_dest(src, dest)
src.relative_path_from dest.parent
end
def verify_absolute(*paths)
paths.each do |path|
absolute = Pathname.new(path).absolute?
raise Error, "#{path} not absolute" if not absolute
end
end
def validate_map!
@map.each do |dest, src|
dest_path = Pathname.new dest
src_path = Pathname.new src
raise Error, "dest path #{dest_path} not relative" if not dest_path.relative?
raise Error, "src path #{src_path} not relative" if not src_path.relative?
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems