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|
{
lib,
runCommand,
srcOnly,
hello,
emptyDirectory,
zlib,
git,
withCFlags,
stdenv,
testers,
}:
let
# Extract (effective) arguments passed to stdenv.mkDerivation and compute the
# arguments we would need to pass to srcOnly manually in order to get the same
# as `srcOnly drv`, i.e. the arguments passed to stdenv.mkDerivation plus the
# used stdenv itself.
getEquivAttrs =
drv:
let
drv' = drv.overrideAttrs (
_finalAttrs: prevAttrs: {
passthru = prevAttrs.passthru or { } // {
passedAttrs = prevAttrs;
};
}
);
in
drv'.passedAttrs // { inherit (drv') stdenv; };
canEvalDrv = drv: (builtins.tryEval drv.drvPath).success;
emptySrc = srcOnly emptyDirectory;
zlibSrc = srcOnly zlib;
# It can be invoked in a number of ways. Let's make sure they're equivalent.
zlibSrcEquiv = srcOnly (getEquivAttrs zlib);
# zlibSrcFreeform = # ???;
helloSrc = srcOnly hello;
helloSrcEquiv = srcOnly (getEquivAttrs hello);
gitSrc = srcOnly git;
gitSrcEquiv = srcOnly (getEquivAttrs git);
# The srcOnly <drv> invocation leaks a lot of attrs into the srcOnly derivation,
# so for comparing with the freeform invocation, we need to make a selection.
# Otherwise, we'll be comparing against whatever attribute the fancy hello drv
# has.
helloDrvSimple = stdenv.mkDerivation {
inherit (hello)
name
pname
version
src
patches
;
};
helloDrvSimpleSrc = srcOnly helloDrvSimple;
helloDrvSimpleSrcFreeform = srcOnly {
inherit (helloDrvSimple)
name
pname
version
src
patches
stdenv
;
};
# Test the issue reported in https://github.com/NixOS/nixpkgs/issues/269539
stdenvAdapterDrv =
let
drv = (withCFlags [ "-Werror" "-Wall" ] stdenv).mkDerivation {
name = "drv-using-stdenv-adapter";
};
in
# Confirm the issue we are trying to avoid exists
assert !(canEvalDrv (srcOnly drv.drvAttrs));
drv;
stdenvAdapterDrvSrc = srcOnly stdenvAdapterDrv;
stdenvAdapterDrvSrcEquiv = srcOnly (
getEquivAttrs stdenvAdapterDrv
// {
# The upside of using overrideAttrs is that any stdenv adapter related
# modifications are only applied once. Using the adapter here again would
# mean applying it twice in total (since withCFlags functions more or less
# like an automatic overrideAttrs).
inherit stdenv;
}
);
# Issue similar to https://github.com/NixOS/nixpkgs/issues/269539
structuredAttrsDrv =
let
drv = stdenv.mkDerivation {
name = "drv-using-structured-attrs";
src = emptyDirectory;
env.NIX_DEBUG = true;
__structuredAttrs = true;
};
in
# Confirm the issue we are trying to avoid exists
assert !(canEvalDrv (srcOnly drv.drvAttrs));
drv;
structuredAttrsDrvSrc = srcOnly structuredAttrsDrv;
structuredAttrsDrvSrcEquiv = srcOnly (getEquivAttrs structuredAttrsDrv);
in
runCommand "srcOnly-tests"
{
moreTests = [
(testers.testEqualDerivation "zlibSrcEquiv == zlibSrc" zlibSrcEquiv zlibSrc)
# (testers.testEqualDerivation
# "zlibSrcFreeform == zlibSrc"
# zlibSrcFreeform
# zlibSrc)
(testers.testEqualDerivation "helloSrcEquiv == helloSrc" helloSrcEquiv helloSrc)
(testers.testEqualDerivation "helloSrcEquiv == helloSrc" helloSrcEquiv helloSrc)
(testers.testEqualDerivation "gitSrcEquiv == gitSrc" gitSrcEquiv gitSrc)
(testers.testEqualDerivation "helloDrvSimpleSrcFreeform == helloDrvSimpleSrc"
helloDrvSimpleSrcFreeform
helloDrvSimpleSrc
)
(testers.testEqualDerivation "stdenvAdapterDrvSrcEquiv == stdenvAdapterDrvSrc"
stdenvAdapterDrvSrcEquiv
stdenvAdapterDrvSrc
)
(testers.testEqualDerivation "structuredAttrsDrvSrcEquiv == structuredAttrsDrvSrc"
structuredAttrsDrvSrcEquiv
structuredAttrsDrvSrc
)
];
}
''
# Test that emptySrc is empty
if [ -n "$(ls -A ${emptySrc})" ]; then
echo "emptySrc is not empty"
exit 1
fi
# Test that zlibSrc is not empty
if [ -z "$(ls -A ${zlibSrc})" ]; then
echo "zlibSrc is empty"
exit 1
fi
# Make $out exist to avoid build failure
mkdir -p $out
''
|
