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Add flag to disable the eval cache

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This commit is contained in:
Eelco Dolstra 2020-04-17 14:30:04 +02:00
parent aa34c0ef51
commit bdb3226607
1 changed files with 7 additions and 1 deletions
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8
src/nix/flake.cc
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@ -976,6 +976,7 @@ struct AttrCursor : std::enable_shared_from_this<AttrCursor>
struct CmdFlakeShow : FlakeCommand struct CmdFlakeShow : FlakeCommand
{ {
bool showLegacy = false; bool showLegacy = false;
bool useEvalCache = true;
CmdFlakeShow() CmdFlakeShow()
{ {
@ -983,6 +984,11 @@ struct CmdFlakeShow : FlakeCommand
.longName("legacy") .longName("legacy")
.description("show the contents of the 'legacyPackages' output") .description("show the contents of the 'legacyPackages' output")
.set(&showLegacy, true); .set(&showLegacy, true);
mkFlag()
.longName("no-eval-cache")
.description("do not use the flake evaluation cache")
.handler([&]() { useEvalCache = false; });
} }
std::string description() override std::string description() override
@ -1111,7 +1117,7 @@ struct CmdFlakeShow : FlakeCommand
} }
}; };
auto db = std::make_shared<AttrDb>(flake.getFingerprint()); auto db = useEvalCache ? std::make_shared<AttrDb>(flake.getFingerprint()) : nullptr;
auto root = std::make_shared<AttrRoot>(db, *state, auto root = std::make_shared<AttrRoot>(db, *state,
[&]() [&]()