nixpkgs/pkgs/tools/filesystems/squashfs/default.nix

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