44 lines
1.2 KiB
Ruby

# typed: strict
# frozen_string_literal: true
require "system_command"
module UnpackStrategy
# Strategy for unpacking Fossil repositories.
class Fossil
include UnpackStrategy
extend SystemCommand::Mixin
sig { override.returns(T::Array[String]) }
def self.extensions
[]
end
sig { override.params(path: Pathname).returns(T::Boolean) }
def self.can_extract?(path)
return false unless path.magic_number.match?(/\ASQLite format 3\000/n)
# Fossil database is made up of artifacts, so the `artifact` table must exist.
query = "select count(*) from sqlite_master where type = 'view' and name = 'artifact'"
system_command("sqlite3", args: [path, query]).stdout.to_i == 1
end
private
sig { override.params(unpack_dir: Pathname, basename: Pathname, verbose: T::Boolean).void }
def extract_to_dir(unpack_dir, basename:, verbose:)
args = if @ref_type && @ref
[@ref]
else
[]
end
system_command! "fossil",
args: ["open", path, *args],
chdir: unpack_dir,
env: { "PATH" => PATH.new(Formula["fossil"].opt_bin, ENV.fetch("PATH")) },
verbose:
end
end
end