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Merge branch 'short-circuit-subst' of https://github.com/Kha/nix

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This commit is contained in:
Eelco Dolstra 2021-09-01 21:45:04 +02:00
commit 2cb7a502a4
2 changed files with 8 additions and 3 deletions
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4
src/libstore/local-store.cc
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@ -1076,6 +1076,10 @@ void LocalStore::querySubstitutablePathInfos(const StorePathCAMap & paths, Subst
if (!settings.useSubstitutes) return;
for (auto & sub : getDefaultSubstituters()) {
for (auto & path : paths) {
if (infos.find(path.first) != infos.end())
// choose first succeeding substituter
continue;
auto subPath(path.first);
// recompute store path so that we can use a different store root

7
src/libstore/store-api.hh
View File

@ -430,9 +430,10 @@ public:
virtual StorePathSet querySubstitutablePaths(const StorePathSet & paths) { return {}; };
/* Query substitute info (i.e. references, derivers and download
sizes) of a map of paths to their optional ca values. If a path
does not have substitute info, it's omitted from the resulting
‘infos’ map. */
sizes) of a map of paths to their optional ca values. The info
of the first succeeding substituter for each path will be
returned. If a path does not have substitute info, it's omitted
from the resulting ‘infos’ map. */
virtual void querySubstitutablePathInfos(const StorePathCAMap & paths,
SubstitutablePathInfos & infos) { return; };