From d81681792d316819444861049f8d2d59af17889e Mon Sep 17 00:00:00 2001 From: Klaus Aehlig Date: Mon, 3 Jun 2024 15:15:58 +0200 Subject: rule language: support SYMLINK function ... to allow generating symlinks as part of a rule, as it is already described in our documentation. --- .../build_engine/target_map/target_map.cpp | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'src/buildtool/build_engine/target_map/target_map.cpp') diff --git a/src/buildtool/build_engine/target_map/target_map.cpp b/src/buildtool/build_engine/target_map/target_map.cpp index 0c713cd7..8d904ff8 100644 --- a/src/buildtool/build_engine/target_map/target_map.cpp +++ b/src/buildtool/build_engine/target_map/target_map.cpp @@ -729,6 +729,27 @@ void withDependencies( ArtifactDigest::Create(data->String()), ObjectType::File}}; }}, + + {"SYMLINK", + [&blobs](auto&& eval, auto const& expr, auto const& env) { + auto data = eval(expr->Get("data", ""s), env); + if (not data->IsString()) { + throw Evaluator::EvaluationError{ + fmt::format("SYMLINK data has to be a string, but got {}", + data->ToString())}; + } + if (not PathIsNonUpwards(data->String())) { + throw Evaluator::EvaluationError{fmt::format( + "SYMLINK data has to be non-upwards relative, but got {}", + data->ToString())}; + } + blobs.emplace_back(data->String()); + + return ExpressionPtr{ArtifactDescription{ + ArtifactDigest::Create(data->String()), + ObjectType::Symlink}}; + }}, + {"TREE", [&trees](auto&& eval, auto const& expr, auto const& env) { auto val = eval(expr->Get("$1", Expression::kEmptyMapExpr), env); -- cgit v1.2.3