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Make flakes work with 'nix build --store ...'

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It was getting confused between logical and real store paths.

Also, make fetchGit and fetchMercurial update allowedPaths properly.

(Maybe the evaluator, rather than the caller of the evaluator, should
apply toRealPath(), but that's a bigger change.)
This commit is contained in:
Eelco Dolstra 2019-05-15 15:38:24 +02:00
parent 38b87dea62
commit 5c34d66538
5 changed files with 14 additions and 8 deletions
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2
src/libstore/download.cc
View file

@ -804,6 +804,7 @@ CachedDownloadResult Downloader::downloadCached(ref<Store> store, const string &
expectedStorePath = store->makeFixedOutputPath(unpack, expectedHash, name);
if (store->isValidPath(expectedStorePath)) {
CachedDownloadResult result;
result.storePath = expectedStorePath;
result.path = store->toRealPath(expectedStorePath);
return result;
}
@ -912,6 +913,7 @@ CachedDownloadResult Downloader::downloadCached(ref<Store> store, const string &
url, expectedHash.to_string(), gotHash.to_string());
}
result.storePath = storePath;
result.path = store->toRealPath(storePath);
return result;
}

3
src/libstore/download.hh
View file

@ -43,6 +43,9 @@ struct DownloadResult
struct CachedDownloadResult
{
// Note: 'storePath' may be different from 'path' when using a
// chroot store.
Path storePath;
Path path;
std::optional<std::string> etag;
};