From 632740c2dfeb47850f51a24836b17808e1f7b972 Mon Sep 17 00:00:00 2001 From: Qyriad Date: Thu, 4 Apr 2024 10:46:44 -0600 Subject: [PATCH] always re-eval cached failures This is terrible UX, and frankly an eval failure should be a cache invalidation anyway. This removes the CachedEvalError type entirely. Fixes #223. Change-Id: I91f8003eabd0ea45003024e96d1de3c7ae8e49d8 --- doc/manual/rl-next/no-cache-eval-errors.md | 8 ++++++++ src/libexpr/eval-cache.cc | 17 +++++++---------- src/libexpr/eval-cache.hh | 6 +++--- src/libexpr/eval-error.cc | 1 - src/libexpr/eval-error.hh | 1 - 5 files changed, 18 insertions(+), 15 deletions(-) create mode 100644 doc/manual/rl-next/no-cache-eval-errors.md diff --git a/doc/manual/rl-next/no-cache-eval-errors.md b/doc/manual/rl-next/no-cache-eval-errors.md new file mode 100644 index 000000000..a31a9fa8d --- /dev/null +++ b/doc/manual/rl-next/no-cache-eval-errors.md @@ -0,0 +1,8 @@ +--- +synpsis: re-evaluate cached evaluation errors +# cls: 771 +--- + +"cached failure of [expr]" errors have been removed: expressions already in the +eval cache as a failure will now simply be re-evaluated, removing the need to +set `--no-eval-cache` or similar to see the error. diff --git a/src/libexpr/eval-cache.cc b/src/libexpr/eval-cache.cc index 20dd9e0bc..f26e6d724 100644 --- a/src/libexpr/eval-cache.cc +++ b/src/libexpr/eval-cache.cc @@ -469,7 +469,7 @@ Suggestions AttrCursor::getSuggestionsForAttr(Symbol name) return Suggestions::bestMatches(strAttrNames, root->state.symbols[name]); } -std::shared_ptr AttrCursor::maybeGetAttr(Symbol name, bool forceErrors) +std::shared_ptr AttrCursor::maybeGetAttr(Symbol name) { if (root->db) { if (!cachedValue) @@ -487,10 +487,7 @@ std::shared_ptr AttrCursor::maybeGetAttr(Symbol name, bool forceErro if (std::get_if(&attr->second)) return nullptr; else if (std::get_if(&attr->second)) { - if (forceErrors) - debug("reevaluating failed cached attribute '%s'", getAttrPathStr(name)); - else - throw CachedEvalError(root->state, "cached failure of attribute '%s'", getAttrPathStr(name)); + debug("reevaluating failed cached attribute '%s'", getAttrPathStr(name)); } else return std::make_shared(root, std::make_pair(shared_from_this(), name), nullptr, std::move(attr)); @@ -536,9 +533,9 @@ std::shared_ptr AttrCursor::maybeGetAttr(std::string_view name) return maybeGetAttr(root->state.symbols.create(name)); } -ref AttrCursor::getAttr(Symbol name, bool forceErrors) +ref AttrCursor::getAttr(Symbol name) { - auto p = maybeGetAttr(name, forceErrors); + auto p = maybeGetAttr(name); if (!p) throw Error("attribute '%s' does not exist", getAttrPathStr(name)); return ref(p); @@ -549,11 +546,11 @@ ref AttrCursor::getAttr(std::string_view name) return getAttr(root->state.symbols.create(name)); } -OrSuggestions> AttrCursor::findAlongAttrPath(const std::vector & attrPath, bool force) +OrSuggestions> AttrCursor::findAlongAttrPath(const std::vector & attrPath) { auto res = shared_from_this(); for (auto & attr : attrPath) { - auto child = res->maybeGetAttr(attr, force); + auto child = res->maybeGetAttr(attr); if (!child) { auto suggestions = res->getSuggestionsForAttr(attr); return OrSuggestions>::failed(suggestions); @@ -750,7 +747,7 @@ bool AttrCursor::isDerivation() StorePath AttrCursor::forceDerivation() { - auto aDrvPath = getAttr(root->state.sDrvPath, true); + auto aDrvPath = getAttr(root->state.sDrvPath); auto drvPath = root->state.store->parseStorePath(aDrvPath->getString()); if (!root->state.store->isValidPath(drvPath) && !settings.readOnlyMode) { /* The eval cache contains 'drvPath', but the actual path has diff --git a/src/libexpr/eval-cache.hh b/src/libexpr/eval-cache.hh index ad6cd74fb..2c57d5dde 100644 --- a/src/libexpr/eval-cache.hh +++ b/src/libexpr/eval-cache.hh @@ -100,11 +100,11 @@ public: Suggestions getSuggestionsForAttr(Symbol name); - std::shared_ptr maybeGetAttr(Symbol name, bool forceErrors = false); + std::shared_ptr maybeGetAttr(Symbol name); std::shared_ptr maybeGetAttr(std::string_view name); - ref getAttr(Symbol name, bool forceErrors = false); + ref getAttr(Symbol name); ref getAttr(std::string_view name); @@ -112,7 +112,7 @@ public: * Get an attribute along a chain of attrsets. Note that this does * not auto-call functors or functions. */ - OrSuggestions> findAlongAttrPath(const std::vector & attrPath, bool force = false); + OrSuggestions> findAlongAttrPath(const std::vector & attrPath); std::string getString(); diff --git a/src/libexpr/eval-error.cc b/src/libexpr/eval-error.cc index 8db03610b..9e7f50093 100644 --- a/src/libexpr/eval-error.cc +++ b/src/libexpr/eval-error.cc @@ -99,7 +99,6 @@ template class EvalErrorBuilder; template class EvalErrorBuilder; template class EvalErrorBuilder; template class EvalErrorBuilder; -template class EvalErrorBuilder; template class EvalErrorBuilder; } diff --git a/src/libexpr/eval-error.hh b/src/libexpr/eval-error.hh index 43e6718b0..2fb6bcf41 100644 --- a/src/libexpr/eval-error.hh +++ b/src/libexpr/eval-error.hh @@ -44,7 +44,6 @@ MakeError(TypeError, EvalError); MakeError(UndefinedVarError, EvalError); MakeError(MissingArgumentError, EvalError); MakeError(RestrictedPathError, Error); -MakeError(CachedEvalError, EvalError); MakeError(InfiniteRecursionError, EvalError); struct InvalidPathError : public EvalError