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handle nixGLDefault with nvidiaVersionFile

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zimbatm 2020-04-28 16:55:38 +02:00
parent 7aa1cce7c6
commit 4c09910428
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1 changed files with 11 additions and 8 deletions
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nixGL.nix
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@ -33,7 +33,7 @@ let
# Add an impure parameter to force the rebuild on each access.
time = builtins.currentTime;
}
"cp /proc/driver/nvidia/version $out";
"cp /proc/driver/nvidia/version $out || touch $out";
# The nvidia version. Either fixed by the `nvidiaVersion` argument, or
# auto-detected. Auto-detection is impure.
@ -46,8 +46,10 @@ let
data = builtins.readFile _nvidiaVersionFile;
versionMatch = builtins.match ".*Module +([0-9]+\\.[0-9]+).*" data;
in
assert builtins.length versionMatch == 1;
builtins.head versionMatch;
if versionMatch != null then
builtins.head versionMatch
else
null;
addNvidiaVersion = drv: drv.overrideAttrs(oldAttrs: {
name = oldAttrs.name + "-${_nvidiaVersion}";
@ -187,8 +189,9 @@ in
# The output derivation contains nixGL which point either to
# nixGLNvidia or nixGLIntel using an heuristic.
nixGLDefault =
if builtins.pathExists "/proc/driver/nvidia/version"
then nixGLCommon nixGLNvidia
else nixGLCommon nixGLIntel;
}
if _nvidiaVersion != null then
nixGLCommon nixGLNvidia
else
nixGLCommon nixGLIntel
;
}