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require "hbc/artifact/relocated"
class Hbc::Artifact::Symlinked < Hbc::Artifact::Relocated
def self.link_type_english_name
"Symlink"
end
def self.english_description
"#{artifact_english_name} #{link_type_english_name}s"
end
def self.islink?(path)
path.symlink?
end
def link(artifact_spec)
load_specification artifact_spec
return unless preflight_checks(source, target)
ohai "#{self.class.link_type_english_name}ing #{self.class.artifact_english_name} '#{source.basename}' to '#{target}'"
create_filesystem_link(source, target)
end
def unlink(artifact_spec)
load_specification artifact_spec
return unless self.class.islink?(target)
ohai "Removing #{self.class.artifact_english_name} #{self.class.link_type_english_name.downcase}: '#{target}'"
target.delete
end
def install_phase
@cask.artifacts[self.class.artifact_dsl_key].each(&method(:link))
end
def uninstall_phase
@cask.artifacts[self.class.artifact_dsl_key].each(&method(:unlink))
end
def preflight_checks(source, target)
if target.exist? && !self.class.islink?(target)
ohai "It seems there is already #{self.class.artifact_english_article} #{self.class.artifact_english_name} at '#{target}'; not linking."
return false
end
unless source.exist?
raise Hbc::CaskError, "It seems the #{self.class.link_type_english_name.downcase} source is not there: '#{source}'"
end
true
end
def create_filesystem_link(source, target)
Pathname.new(target).dirname.mkpath
@command.run!("/bin/ln", args: ["-hfs", "--", source, target])
add_altname_metadata source, target.basename.to_s
end
def summarize_artifact(artifact_spec)
load_specification artifact_spec
return unless self.class.islink?(target)
link_description = "#{Tty.red}Broken Link#{Tty.reset}: " unless target.exist?
target_readlink_abv = " (#{target.readlink.abv})" if target.readlink.exist?
"#{link_description}#{printable_target} -> #{target.readlink}#{target_readlink_abv}"
end
end
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