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Merge pull request #3583 from mkenigs/InstallablesRefactor

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Installables refactor
This commit is contained in:
Eelco Dolstra 2020-05-12 17:51:34 +02:00 committed by GitHub
commit fbade0b7cc
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3 changed files with 42 additions and 63 deletions
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83
src/nix/installables.cc
View file

@ -179,33 +179,8 @@ struct InstallableStorePath : Installable
}
};
std::vector<InstallableValue::DerivationInfo> InstallableValue::toDerivations()
{
auto state = cmd.getEvalState();
auto v = toValue(*state).first;
Bindings & autoArgs = *cmd.getAutoArgs(*state);
DrvInfos drvInfos;
getDerivations(*state, *v, "", autoArgs, drvInfos, false);
std::vector<DerivationInfo> res;
for (auto & drvInfo : drvInfos) {
res.push_back({
state->store->parseStorePath(drvInfo.queryDrvPath()),
state->store->parseStorePath(drvInfo.queryOutPath()),
drvInfo.queryOutputName()
});
}
return res;
}
Buildables InstallableValue::toBuildables()
{
auto state = cmd.getEvalState();
Buildables res;
StorePathSet drvPaths;
@ -237,30 +212,14 @@ Buildables InstallableValue::toBuildables()
return res;
}
struct InstallableExpr : InstallableValue
{
std::string text;
InstallableExpr(SourceExprCommand & cmd, const std::string & text)
: InstallableValue(cmd), text(text) { }
std::string what() override { return text; }
std::pair<Value *, Pos> toValue(EvalState & state) override
{
auto v = state.allocValue();
state.eval(state.parseExprFromString(text, absPath(".")), *v);
return {v, noPos};
}
};
struct InstallableAttrPath : InstallableValue
{
SourceExprCommand & cmd;
RootValue v;
std::string attrPath;
InstallableAttrPath(SourceExprCommand & cmd, Value * v, const std::string & attrPath)
: InstallableValue(cmd), v(allocRootValue(v)), attrPath(attrPath)
InstallableAttrPath(ref<EvalState> state, SourceExprCommand & cmd, Value * v, const std::string & attrPath)
: InstallableValue(state), cmd(cmd), v(allocRootValue(v)), attrPath(attrPath)
{ }
std::string what() override { return attrPath; }
@ -271,8 +230,31 @@ struct InstallableAttrPath : InstallableValue
state.forceValue(*vRes);
return {vRes, pos};
}
virtual std::vector<InstallableValue::DerivationInfo> toDerivations() override;
};
std::vector<InstallableValue::DerivationInfo> InstallableAttrPath::toDerivations()
{
auto v = toValue(*state).first;
Bindings & autoArgs = *cmd.getAutoArgs(*state);
DrvInfos drvInfos;
getDerivations(*state, *v, "", autoArgs, drvInfos, false);
std::vector<DerivationInfo> res;
for (auto & drvInfo : drvInfos) {
res.push_back({
state->store->parseStorePath(drvInfo.queryDrvPath()),
state->store->parseStorePath(drvInfo.queryOutPath()),
drvInfo.queryOutputName()
});
}
return res;
}
std::vector<std::string> InstallableFlake::getActualAttrPaths()
{
std::vector<std::string> res;
@ -330,10 +312,9 @@ ref<eval_cache::EvalCache> openEvalCache(
std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableFlake::toDerivation()
{
auto state = cmd.getEvalState();
auto lockedFlake = std::make_shared<flake::LockedFlake>(
lockFlake(*state, flakeRef, cmd.lockFlags));
lockFlake(*state, flakeRef, lockFlags));
auto cache = openEvalCache(*state, lockedFlake, true);
auto root = cache->getRoot();
@ -379,7 +360,7 @@ std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
std::pair<Value *, Pos> InstallableFlake::toValue(EvalState & state)
{
auto lockedFlake = lockFlake(state, flakeRef, cmd.lockFlags);
auto lockedFlake = lockFlake(state, flakeRef, lockFlags);
auto vOutputs = getFlakeOutputs(state, lockedFlake);
@ -402,7 +383,7 @@ std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
InstallableFlake::getCursor(EvalState & state, bool useEvalCache)
{
auto evalCache = openEvalCache(state,
std::make_shared<flake::LockedFlake>(lockFlake(state, flakeRef, cmd.lockFlags)),
std::make_shared<flake::LockedFlake>(lockFlake(state, flakeRef, lockFlags)),
useEvalCache);
auto root = evalCache->getRoot();
@ -440,7 +421,7 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
}
for (auto & s : ss)
result.push_back(std::make_shared<InstallableAttrPath>(*this, vFile, s == "." ? "" : s));
result.push_back(std::make_shared<InstallableAttrPath>(state, *this, vFile, s == "." ? "" : s));
} else {
@ -450,9 +431,9 @@ std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
try {
auto [flakeRef, fragment] = parseFlakeRefWithFragment(s, absPath("."));
result.push_back(std::make_shared<InstallableFlake>(
*this, std::move(flakeRef),
getEvalState(), std::move(flakeRef),
fragment == "" ? getDefaultFlakeAttrPaths() : Strings{fragment},
getDefaultFlakeAttrPathPrefixes()));
getDefaultFlakeAttrPathPrefixes(), lockFlags));
continue;
} catch (...) {
ex = std::current_exception();

20
src/nix/installables.hh
View file

@ -37,10 +37,7 @@ struct Installable
virtual std::string what() = 0;
virtual Buildables toBuildables()
{
throw Error("argument '%s' cannot be built", what());
}
virtual Buildables toBuildables() = 0;
Buildable toBuildable();
@ -64,9 +61,9 @@ struct Installable
struct InstallableValue : Installable
{
SourceExprCommand & cmd;
ref<EvalState> state;
InstallableValue(SourceExprCommand & cmd) : cmd(cmd) { }
InstallableValue(ref<EvalState> state) : state(state) {}
struct DerivationInfo
{
@ -75,7 +72,7 @@ struct InstallableValue : Installable
std::string outputName;
};
virtual std::vector<DerivationInfo> toDerivations();
virtual std::vector<DerivationInfo> toDerivations() = 0;
Buildables toBuildables() override;
};
@ -85,11 +82,12 @@ struct InstallableFlake : InstallableValue
FlakeRef flakeRef;
Strings attrPaths;
Strings prefixes;
const flake::LockFlags & lockFlags;
InstallableFlake(SourceExprCommand & cmd, FlakeRef && flakeRef,
Strings && attrPaths, Strings && prefixes)
: InstallableValue(cmd), flakeRef(flakeRef), attrPaths(attrPaths),
prefixes(prefixes)
InstallableFlake(ref<EvalState> state, FlakeRef && flakeRef,
Strings && attrPaths, Strings && prefixes, const flake::LockFlags & lockFlags)
: InstallableValue(state), flakeRef(flakeRef), attrPaths(attrPaths),
prefixes(prefixes), lockFlags(lockFlags)
{ }
std::string what() override { return flakeRef.to_string() + "#" + *attrPaths.begin(); }

2
src/nix/profile.cc
View file

@ -336,7 +336,7 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
Activity act(*logger, lvlChatty, actUnknown,
fmt("checking '%s' for updates", element.source->attrPath));
InstallableFlake installable(*this, FlakeRef(element.source->originalRef), {element.source->attrPath}, {});
InstallableFlake installable(getEvalState(), FlakeRef(element.source->originalRef), {element.source->attrPath}, {}, lockFlags);
auto [attrPath, resolvedRef, drv] = installable.toDerivation();