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{ stdenv, fetchFromGitHub, zlib, xz
, lz4 ? null
, lz4Support ? false
, zstd
}:
assert lz4Support -> (lz4 != null);
stdenv.mkDerivation {
pname = "squashfs";
version = "4.4";
src = fetchFromGitHub {
owner = "plougher";
repo = "squashfs-tools";
sha256 = "0697fv8n6739mcyn57jclzwwbbqwpvjdfkv1qh9s56lvyqnplwaw";
# Tag "4.4" points to this commit.
rev = "52eb4c279cd283ed9802dd1ceb686560b22ffb67";
};
patches = [
# This patch adds an option to pad filesystems (increasing size) in
# exchange for better chunking / binary diff calculation.
./4k-align.patch
] ++ stdenv.lib.optional stdenv.isDarwin ./darwin.patch;
buildInputs = [ zlib xz zstd ]
++ stdenv.lib.optional lz4Support lz4;
preBuild = "cd squashfs-tools";
installFlags = "INSTALL_DIR=\${out}/bin";
makeFlags = [ "XZ_SUPPORT=1" "ZSTD_SUPPORT=1" ]
++ stdenv.lib.optional lz4Support "LZ4_SUPPORT=1";
meta = {
homepage = http://squashfs.sourceforge.net/;
description = "Tool for creating and unpacking squashfs filesystems";
platforms = stdenv.lib.platforms.unix;
license = stdenv.lib.licenses.gpl2Plus;
maintainers = with stdenv.lib.maintainers; [ ruuda ];
};
}
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