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Return map of StorePaths in copyPaths

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This allows the caller to know what values were actually added to the
store.
This commit is contained in:
Matthew Bauer 2020-06-19 14:48:57 -04:00
parent 7e11cf3399
commit 0c9c1b8826
2 changed files with 20 additions and 9 deletions
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12
src/libstore/store-api.cc
View file

@ -638,7 +638,7 @@ void copyStorePath(ref<Store> srcStore, ref<Store> dstStore,
}
void copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & storePaths,
std::map<StorePath, StorePath> copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & storePaths,
RepairFlag repair, CheckSigsFlag checkSigs, SubstituteFlag substitute)
{
auto valid = dstStore->queryValidPaths(storePaths, substitute);
@ -647,7 +647,11 @@ void copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & st
for (auto & path : storePaths)
if (!valid.count(path)) missing.insert(srcStore->printStorePath(path));
if (missing.empty()) return;
std::map<StorePath, StorePath> pathsMap;
for (auto & path : storePaths)
pathsMap.insert_or_assign(path, path);
if (missing.empty()) return pathsMap;
Activity act(*logger, lvlInfo, actCopyPaths, fmt("copying %d paths", missing.size()));
@ -677,6 +681,7 @@ void copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & st
if (storePathForDst != storePath)
debug("replaced path '%s' to '%s' for substituter '%s'", srcStore->printStorePath(storePath), dstStore->printStorePath(storePathForDst), dstStore->getUri());
}
pathsMap.insert_or_assign(storePath, storePathForDst);
if (dstStore->isValidPath(storePathForDst)) {
nrDone++;
@ -704,6 +709,7 @@ void copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & st
if (storePathForDst != storePath)
debug("replaced path '%s' to '%s' for substituter '%s'", srcStore->printStorePath(storePath), dstStore->printStorePath(storePathForDst), dstStore->getUri());
}
pathsMap.insert_or_assign(storePath, storePathForDst);
if (!dstStore->isValidPath(storePathForDst)) {
MaintainCount<decltype(nrRunning)> mc(nrRunning);
@ -723,6 +729,8 @@ void copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & st
nrDone++;
showProgress();
});
return pathsMap;
}

17
src/libstore/store-api.hh
View file

@ -444,8 +444,9 @@ public:
virtual StorePathSet querySubstitutablePaths(const StorePathSet & paths) { return {}; };
/* Query substitute info (i.e. references, derivers and download
sizes) of a set of paths. 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. 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; };
@ -743,11 +744,13 @@ void copyStorePath(ref<Store> srcStore, ref<Store> dstStore,
/* Copy store paths from one store to another. The paths may be copied
in parallel. They are copied in a topologically sorted order
(i.e. if A is a reference of B, then A is copied before B), but
the set of store paths is not automatically closed; use
copyClosure() for that. */
void copyPaths(ref<Store> srcStore, ref<Store> dstStore, const StorePathSet & storePaths,
in parallel. They are copied in a topologically sorted order (i.e.
if A is a reference of B, then A is copied before B), but the set
of store paths is not automatically closed; use copyClosure() for
that. Returns a map of what each path was copied to the dstStore
as. */
std::map<StorePath, StorePath> copyPaths(ref<Store> srcStore, ref<Store> dstStore,
const StorePathSet & storePaths,
RepairFlag repair = NoRepair,
CheckSigsFlag checkSigs = CheckSigs,
SubstituteFlag substitute = NoSubstitute);