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| author | Eelco Dolstra <edolstra@gmail.com> | 2019-05-22 14:31:40 +0200 |
|---|---|---|
| committer | Eelco Dolstra <edolstra@gmail.com> | 2019-05-22 14:31:40 +0200 |
| commit | e414bde6f9f58e599d48307ff3cb0ab64cb47d9a (patch) | |
| tree | 93387e851b19fd69ecfa182b7be916036b6bba1c /src/libexpr | |
| parent | 3cecf3f39c5c580ed6d0c5f0bcbb09dcc53dfae4 (diff) | |
Check the flake epoch
Closes #2883.
Diffstat (limited to 'src/libexpr')
| -rw-r--r-- | src/libexpr/primops/flake.cc | 11 | ||||
| -rw-r--r-- | src/libexpr/primops/flake.hh | 3 |
2 files changed, 11 insertions, 3 deletions
diff --git a/src/libexpr/primops/flake.cc b/src/libexpr/primops/flake.cc index c08c30c9c..9131080bf 100644 --- a/src/libexpr/primops/flake.cc +++ b/src/libexpr/primops/flake.cc @@ -309,10 +309,17 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowe state.forceAttrs(vInfo); + if (auto epoch = vInfo.attrs->get(state.symbols.create("epoch"))) { + flake.epoch = state.forceInt(*(**epoch).value, *(**epoch).pos); + if (flake.epoch > 2019) + throw Error("flake '%s' requires unsupported epoch %d; please upgrade Nix", flakeRef, flake.epoch); + } else + throw Error("flake '%s' lacks attribute 'epoch'", flakeRef); + if (auto name = vInfo.attrs->get(state.sName)) flake.id = state.forceStringNoCtx(*(**name).value, *(**name).pos); else - throw Error("flake lacks attribute 'name'"); + throw Error("flake '%s' lacks attribute 'name'", flakeRef); if (auto description = vInfo.attrs->get(state.sDescription)) flake.description = state.forceStringNoCtx(*(**description).value, *(**description).pos); @@ -337,7 +344,7 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowe state.forceFunction(*(**provides).value, *(**provides).pos); flake.vProvides = (**provides).value; } else - throw Error("flake lacks attribute 'provides'"); + throw Error("flake '%s' lacks attribute 'provides'", flakeRef); return flake; } diff --git a/src/libexpr/primops/flake.hh b/src/libexpr/primops/flake.hh index 8eaac9d96..983c0eab6 100644 --- a/src/libexpr/primops/flake.hh +++ b/src/libexpr/primops/flake.hh @@ -101,7 +101,8 @@ struct Flake std::map<FlakeAlias, FlakeRef> nonFlakeRequires; Value * vProvides; // FIXME: gc // date - // content hash + unsigned int epoch; + Flake(const FlakeRef & origRef, const SourceInfo & sourceInfo) : originalRef(origRef), resolvedRef(sourceInfo.resolvedRef), revCount(sourceInfo.revCount), storePath(sourceInfo.storePath) {}; }; |