wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-06-26 07:31:15 +02:00
Code Activity

Factor out EvalCache::forceDerivation()

Browse source
This commit is contained in:
Eelco Dolstra 2020-06-29 16:39:41 +02:00
parent ca946860ce
commit b681408879
3 changed files with 20 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/libexpr/eval-cache.cc
View file

@ -2,6 +2,7 @@
#include "sqlite.hh"
#include "eval.hh"
#include "eval-inline.hh"
#include "store-api.hh"
namespace nix::eval_cache {
@ -502,4 +503,19 @@ bool AttrCursor::isDerivation()
return aType && aType->getString() == "derivation";
}
StorePath AttrCursor::forceDerivation()
{
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
been garbage-collected. So force it to be regenerated. */
aDrvPath->forceValue();
if (!root->state.store->isValidPath(drvPath))
throw Error("don't know how to recreate store derivation '%s'!",
root->state.store->printStorePath(drvPath));
}
return drvPath;
}
}