From d127f9bd0e7b9b2e0df2de8a2227f77c0907468d Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Wed, 18 May 2022 17:39:39 +0200 Subject: chore(3p/nix): unvendor tvix 0.1 Nothing is using this now, and we'll likely never pick this up again, but we learned a lot in the process. Every now and then this breaks in some bizarre way on channel bumps and it's just a waste of time to maintain that. Change-Id: Idcf2f5acd4ca7070ce18d7149cbfc0d967dc0a44 Reviewed-on: https://cl.tvl.fyi/c/depot/+/5632 Tested-by: BuildkiteCI Reviewed-by: sterni Reviewed-by: lukegb Autosubmit: tazjin --- third_party/nix/src/libexpr/primops/context.cc | 202 ------------------------- 1 file changed, 202 deletions(-) delete mode 100644 third_party/nix/src/libexpr/primops/context.cc (limited to 'third_party/nix/src/libexpr/primops/context.cc') diff --git a/third_party/nix/src/libexpr/primops/context.cc b/third_party/nix/src/libexpr/primops/context.cc deleted file mode 100644 index fb8879ead16d..000000000000 --- a/third_party/nix/src/libexpr/primops/context.cc +++ /dev/null @@ -1,202 +0,0 @@ -#include "libexpr/eval-inline.hh" -#include "libexpr/primops.hh" -#include "libstore/derivations.hh" - -namespace nix { - -static void prim_unsafeDiscardStringContext(EvalState& state, const Pos& pos, - Value** args, Value& v) { - PathSet context; - std::string s = state.coerceToString(pos, *args[0], context); - mkString(v, s, PathSet()); -} - -static RegisterPrimOp r1("__unsafeDiscardStringContext", 1, - prim_unsafeDiscardStringContext); - -static void prim_hasContext(EvalState& state, const Pos& pos, Value** args, - Value& v) { - PathSet context; - state.forceString(*args[0], context, pos); - mkBool(v, !context.empty()); -} - -static RegisterPrimOp r2("__hasContext", 1, prim_hasContext); - -/* Sometimes we want to pass a derivation path (i.e. pkg.drvPath) to a - builder without causing the derivation to be built (for instance, - in the derivation that builds NARs in nix-push, when doing - source-only deployment). This primop marks the string context so - that builtins.derivation adds the path to drv.inputSrcs rather than - drv.inputDrvs. */ -static void prim_unsafeDiscardOutputDependency(EvalState& state, const Pos& pos, - Value** args, Value& v) { - PathSet context; - std::string s = state.coerceToString(pos, *args[0], context); - - PathSet context2; - for (auto& p : context) { - context2.insert(p.at(0) == '=' ? std::string(p, 1) : p); - } - - mkString(v, s, context2); -} - -static RegisterPrimOp r3("__unsafeDiscardOutputDependency", 1, - prim_unsafeDiscardOutputDependency); - -/* Extract the context of a string as a structured Nix value. - - The context is represented as an attribute set whose keys are the - paths in the context set and whose values are attribute sets with - the following keys: - path: True if the relevant path is in the context as a plain store - path (i.e. the kind of context you get when interpolating - a Nix path (e.g. ./.) into a string). False if missing. - allOutputs: True if the relevant path is a derivation and it is - in the context as a drv file with all of its outputs - (i.e. the kind of context you get when referencing - .drvPath of some derivation). False if missing. - outputs: If a non-empty list, the relevant path is a derivation - and the provided outputs are referenced in the context - (i.e. the kind of context you get when referencing - .outPath of some derivation). Empty list if missing. - Note that for a given path any combination of the above attributes - may be present. -*/ -static void prim_getContext(EvalState& state, const Pos& pos, Value** args, - Value& v) { - struct ContextInfo { - bool path = false; - bool allOutputs = false; - Strings outputs; - }; - PathSet context; - state.forceString(*args[0], context, pos); - auto contextInfos = std::map(); - for (const auto& p : context) { - Path drv; - std::string output; - const Path* path = &p; - if (p.at(0) == '=') { - drv = std::string(p, 1); - path = &drv; - } else if (p.at(0) == '!') { - std::pair ctx = decodeContext(p); - drv = ctx.first; - output = ctx.second; - path = &drv; - } - auto isPath = drv.empty(); - auto isAllOutputs = (!drv.empty()) && output.empty(); - - auto iter = contextInfos.find(*path); - if (iter == contextInfos.end()) { - contextInfos.emplace( - *path, - ContextInfo{isPath, isAllOutputs, - output.empty() ? Strings{} : Strings{std::move(output)}}); - } else { - if (isPath) { - iter->second.path = true; - } else if (isAllOutputs) { - iter->second.allOutputs = true; - } else { - iter->second.outputs.emplace_back(std::move(output)); - } - } - } - - state.mkAttrs(v, contextInfos.size()); - - auto sPath = state.symbols.Create("path"); - auto sAllOutputs = state.symbols.Create("allOutputs"); - for (const auto& info : contextInfos) { - auto& infoVal = *state.allocAttr(v, state.symbols.Create(info.first)); - state.mkAttrs(infoVal, 3); - if (info.second.path) { - mkBool(*state.allocAttr(infoVal, sPath), true); - } - if (info.second.allOutputs) { - mkBool(*state.allocAttr(infoVal, sAllOutputs), true); - } - if (!info.second.outputs.empty()) { - auto& outputsVal = *state.allocAttr(infoVal, state.sOutputs); - state.mkList(outputsVal, info.second.outputs.size()); - size_t i = 0; - for (const auto& output : info.second.outputs) { - mkString(*((*outputsVal.list)[i++] = state.allocValue()), output); - } - } - } -} - -static RegisterPrimOp r4("__getContext", 1, prim_getContext); - -/* Append the given context to a given string. - - See the commentary above unsafeGetContext for details of the - context representation. -*/ -static void prim_appendContext(EvalState& state, const Pos& pos, Value** args, - Value& v) { - PathSet context; - auto orig = state.forceString(*args[0], context, pos); - - state.forceAttrs(*args[1], pos); - - auto sPath = state.symbols.Create("path"); - auto sAllOutputs = state.symbols.Create("allOutputs"); - for (const auto& attr_iter : *args[1]->attrs) { - const Attr* i = &attr_iter.second; // TODO(tazjin): get rid of this - if (!state.store->isStorePath(i->name)) { - throw EvalError("Context key '%s' is not a store path, at %s", i->name, - i->pos); - } - if (!settings.readOnlyMode) { - state.store->ensurePath(i->name); - } - state.forceAttrs(*i->value, *i->pos); - auto iter = i->value->attrs->find(sPath); - if (iter != i->value->attrs->end()) { - if (state.forceBool(*iter->second.value, *iter->second.pos)) { - context.insert(i->name); - } - } - - iter = i->value->attrs->find(sAllOutputs); - if (iter != i->value->attrs->end()) { - if (state.forceBool(*iter->second.value, *iter->second.pos)) { - if (!isDerivation(i->name)) { - throw EvalError( - "Tried to add all-outputs context of %s, which is not a " - "derivation, to a string, at %s", - i->name, i->pos); - } - context.insert("=" + std::string(i->name)); - } - } - - iter = i->value->attrs->find(state.sOutputs); - if (iter != i->value->attrs->end()) { - state.forceList(*iter->second.value, *iter->second.pos); - if (iter->second.value->listSize() && !isDerivation(i->name)) { - throw EvalError( - "Tried to add derivation output context of %s, which is not a " - "derivation, to a string, at %s", - i->name, i->pos); - } - for (unsigned int n = 0; n < iter->second.value->listSize(); ++n) { - auto name = state.forceStringNoCtx(*(*iter->second.value->list)[n], - *iter->second.pos); - context.insert("!" + name + "!" + std::string(i->name)); - } - } - } - - mkString(v, orig, context); -} - -static RegisterPrimOp r5("__appendContext", 2, prim_appendContext); - -} // namespace nix -- cgit 1.4.1