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