{ stdenv, bazel, enableNixHacks ? true }: args@{ name, bazelFlags ? [], bazelTarget, buildAttrs, fetchAttrs, ... }: let fArgs = removeAttrs args [ "buildAttrs" "fetchAttrs" ]; fBuildAttrs = fArgs // buildAttrs; fFetchAttrs = fArgs // removeAttrs fetchAttrs [ "sha256" ]; in stdenv.mkDerivation (fBuildAttrs // { inherit name bazelFlags bazelTarget; deps = stdenv.mkDerivation (fFetchAttrs // { name = "${name}-deps"; inherit bazelFlags bazelTarget; nativeBuildInputs = fFetchAttrs.nativeBuildInputs or [] ++ [ bazel ]; preHook = fFetchAttrs.preHook or "" + '' export bazelOut="$(echo ''${NIX_BUILD_TOP}/output | sed -e 's,//,/,g')" export bazelUserRoot="$(echo ''${NIX_BUILD_TOP}/tmp | sed -e 's,//,/,g')" export HOME="$NIX_BUILD_TOP" ''; buildPhase = fFetchAttrs.buildPhase or '' runHook preBuild bazel --output_base="$bazelOut" --output_user_root="$bazelUserRoot" fetch $bazelFlags $bazelTarget runHook postBuild ''; installPhase = fFetchAttrs.installPhase or '' runHook preInstall # Patching markers to make them deterministic for i in $bazelOut/external/\@*.marker; do sed -i 's, -\?[0-9][0-9]*$, 1,' "$i" done # Patching symlinks to remove build directory reference find $bazelOut/external -type l | while read symlink; do ln -sf $(readlink "$symlink" | sed "s,$NIX_BUILD_TOP,NIX_BUILD_TOP,") "$symlink" done cp -r $bazelOut/external $out runHook postInstall ''; dontFixup = true; outputHashMode = "recursive"; outputHashAlgo = "sha256"; outputHash = fetchAttrs.sha256; }); nativeBuildInputs = fBuildAttrs.nativeBuildInputs or [] ++ [ (if enableNixHacks then (bazel.override { enableNixHacks = true; }) else bazel) ]; preHook = fBuildAttrs.preHook or "" + '' export bazelOut="$NIX_BUILD_TOP/output" export bazelUserRoot="$NIX_BUILD_TOP/tmp" export HOME="$NIX_BUILD_TOP" ''; preConfigure = '' mkdir -p $bazelOut/external cp -r $deps/* $bazelOut/external chmod -R +w $bazelOut find $bazelOut -type l | while read symlink; do ln -sf $(readlink "$symlink" | sed "s,NIX_BUILD_TOP,$NIX_BUILD_TOP,") "$symlink" done '' + fBuildAttrs.preConfigure or ""; buildPhase = fBuildAttrs.buildPhase or '' runHook preBuild bazel --output_base="$bazelOut" --output_user_root="$bazelUserRoot" build -j $NIX_BUILD_CORES $bazelFlags $bazelTarget runHook postBuild ''; })