nixpkgs/pkgs/os-specific/linux/v4l-utils/default.nix
Profpatsch 4a7f99d55d treewide: with stdenv.lib; in meta -> with lib;
Part of: https://github.com/NixOS/nixpkgs/issues/108938

meta = with stdenv.lib;

is a widely used pattern. We want to slowly remove
the `stdenv.lib` indirection and encourage people
to use `lib` directly. Thus let’s start with the meta
field.

This used a rewriting script to mostly automatically
replace all occurances of this pattern, and add the
`lib` argument to the package header if it doesn’t
exist yet.

The script in its current form is available at
https://cs.tvl.fyi/depot@2f807d7f141068d2d60676a89213eaa5353ca6e0/-/blob/users/Profpatsch/nixpkgs-rewriter/default.nix
2021-01-11 10:38:22 +01:00

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{ stdenv, lib, fetchurl, pkgconfig, perl
, libjpeg, udev
, withUtils ? true
, withGUI ? true, alsaLib, libX11, qtbase, libGLU, wrapQtAppsHook
}:
# See libv4l in all-packages.nix for the libs only (overrides alsa, libX11 & QT)
let
withQt = withUtils && withGUI;
# we need to use stdenv.mkDerivation in order not to pollute the libv4ls closure with Qt
in stdenv.mkDerivation rec {
pname = "v4l-utils";
version = "1.20.0";
src = fetchurl {
url = "https://linuxtv.org/downloads/${pname}/${pname}-${version}.tar.bz2";
sha256 = "1xr66y6w422hil6s7n8d61a2vhwh4im8l267amf41jvw7xqihqcm";
};
outputs = [ "out" ] ++ lib.optional withUtils "lib" ++ [ "dev" ];
configureFlags = (if withUtils then [
"--with-localedir=${placeholder "lib"}/share/locale"
"--with-udevdir=${placeholder "out"}/lib/udev"
] else [
"--disable-v4l-utils"
]);
postFixup = ''
# Create symlink for V4l1 compatibility
ln -s "$dev/include/libv4l1-videodev.h" "$dev/include/videodev.h"
'';
nativeBuildInputs = [ pkgconfig perl ] ++ lib.optional withQt wrapQtAppsHook;
buildInputs = [ udev ] ++ lib.optionals withQt [ alsaLib libX11 qtbase libGLU ];
propagatedBuildInputs = [ libjpeg ];
postPatch = ''
patchShebangs utils/cec-ctl/msg2ctl.pl
patchShebangs utils/libcecutil/cec-gen.pl
'';
meta = with lib; {
description = "V4L utils and libv4l, provide common image formats regardless of the v4l device";
homepage = "https://linuxtv.org/projects.php";
license = licenses.lgpl21Plus;
maintainers = with maintainers; [ codyopel ];
platforms = platforms.linux;
};
}