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Several fixes for Nix build (#2389)

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* Fixed a bug for build via nix, when c3c-checks and c3c-debug didn't have a git hash

* Got rid of python3 requirement for checks in nix as it's no longer needed

* Now c3c properly displays it's build date in nix build

* Add more platforms for checks in nix build

* Add installation and compilation on Nix to README
This commit is contained in:
vssukharev
2025-08-11 20:21:41 +03:00
committed by GitHub
parent 0470f3be8e
commit 2597f6217e
3 changed files with 78 additions and 27 deletions
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47
nix/default.nix
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@@ -2,12 +2,11 @@
lib,
llvmPackages,
cmake,
python3,
curl,
libxml2,
libffi,
xar,
rev ? "unknown",
rev,
debug ? false,
checks ? false,
}: let
@@ -16,8 +15,8 @@
inherit (lib.lists) findFirst;
inherit (lib.asserts) assertMsg;
inherit (lib.strings) hasInfix splitString removeSuffix removePrefix optionalString;
in llvmPackages.stdenv.mkDerivation (finalAttrs: {
in llvmPackages.stdenv.mkDerivation (_:
{
pname = "c3c${optionalString debug "-debug"}";
version = let
@@ -28,13 +27,19 @@ in llvmPackages.stdenv.mkDerivation (finalAttrs: {
src = ../.;
cmakeBuildType = if debug then "Debug" else "Release";
postPatch = ''
substituteInPlace git_hash.cmake \
--replace-fail "\''${GIT_HASH}" "${rev}"
# Here we substitute GIT_HASH which is not set for cmake in nix builds.
# Similar situation is with __DATE__ and __TIME__ macros, which are
# set to "Jan 01 1980 00:00:00" by default.
patchPhase = ''
substituteInPlace git_hash.cmake --replace-fail "\''${GIT_HASH}" "${rev}"
local FILE_NAMES="$(find src -type f)"
substituteInPlace $FILE_NAMES --replace-quiet "__DATE__" "\"$(date '+%b %d %Y')\""
substituteInPlace $FILE_NAMES --replace-quiet "__TIME__" "\"$(date '+%T')\""
'';
cmakeBuildType = if debug then "Debug" else "Release";
cmakeFlags = [
"-DC3_ENABLE_CLANGD_LSP=${if debug then "ON" else "OFF"}"
"-DC3_LLD_DIR=${llvmPackages.lld.lib}/lib"
@@ -54,17 +59,25 @@ in llvmPackages.stdenv.mkDerivation (finalAttrs: {
libffi
] ++ lib.optionals llvmPackages.stdenv.hostPlatform.isDarwin [ xar ];
nativeCheckInputs = [ python3 ];
doCheck = llvmPackages.stdenv.system == "x86_64-linux" && checks;
doCheck = checks && lib.elem llvmPackages.stdenv.system [
"x86_64-linux"
"x86_64-darwin"
"aarch64-darwin"
];
# In check phase we preserve BUILD directory as
# we need to return to it before install phase
checkPhase = ''
runHook preCheck
( cd ../resources/testproject; ../../build/c3c build --trust=full )
( cd ../test; ../build/c3c compile-run -O1 src/test_suite_runner.c3 -- ../build/c3c test_suite )
runHook postCheck
'';
local BUILD_DIR=$(pwd)
cd ../resources/testproject
../../build/c3c build --trust=full
cd ../../test
../build/c3c compile-run -O1 src/test_suite_runner.c3 -- ../build/c3c ./test_suite
cd $BUILD_DIR
'';
meta = with lib; {
description = "Compiler for the C3 language";