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Fix XzUnpackStrategy.

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This commit is contained in:
Markus Reiter 2018-07-09 21:20:00 +02:00
parent 633c590aac
commit ec7e22e16f
1 changed files with 17 additions and 7 deletions
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24
Library/Homebrew/unpack_strategy.rb
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@ -151,7 +151,7 @@ class CompressUnpackStrategy < TarUnpackStrategy
end
end
class XzUnpackStrategy < TarUnpackStrategy
class XzUnpackStrategy < UnpackStrategy
def self.can_extract?(path:, magic_number:)
magic_number.match?(/\A\xFD7zXZ\x00/n)
end
@ -159,13 +159,23 @@ class XzUnpackStrategy < TarUnpackStrategy
private
def extract_to_dir(unpack_dir, basename:)
if DependencyCollector.tar_needs_xz_dependency?
unpack_path = unpack_dir/path.basename
FileUtils.cp path, unpack_path, preserve: true
unpack_path = unpack_dir/path.basename
FileUtils.cp path, unpack_path, preserve: true
safe_system Formula["xz"].opt_bin/"xz", "-d", "-q", "-T0", unpack_path
else
super
safe_system Formula["xz"].opt_bin/"xz", "-d", "-q", "-T0", unpack_path
extract_nested_tar(unpack_dir, basename: basename)
end
def extract_nested_tar(unpack_dir, basename:)
return unless DependencyCollector.tar_needs_xz_dependency?
return if (children = unpack_dir.children).count != 1
return if (tar = children.first).extname != ".tar"
Dir.mktmpdir do |tmpdir|
tmpdir = Pathname(tmpdir)
FileUtils.mv tar, tmpdir/tar.basename
TarUnpackStrategy.new(tmpdir/tar.basename).extract(to: unpack_dir, basename: basename)
end
end
end