installer: don't require xz on darwin

On macOS the system tar has builtin support for lzma while xz isn't
available as a separate binary.  There's no builtin package manager
there available either so having to install lzma (without nix) would be
rather painful.
This commit is contained in:
Daiderd Jordan 2020-05-27 20:58:42 +02:00
parent 228857efc6
commit 4e6d7cb55a
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@ -36,7 +36,9 @@ tarball="$tmpDir/$(basename "$tmpDir/nix-@nixVersion@-$system.tar.xz")"
require_util curl "download the binary tarball"
require_util tar "unpack the binary tarball"
require_util xz "unpack the binary tarball"
if [ "$(uname -s)" != "Darwin" ]; then
require_util xz "unpack the binary tarball"
fi
echo "downloading Nix @nixVersion@ binary tarball for $system from '$url' to '$tmpDir'..."
curl -L "$url" -o "$tarball" || oops "failed to download '$url'"