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Fix downloadCached() with a chroot store

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E.g.

  nix run --store ~/my-nix -f channel:nixos-17.03 hello -c hello

This problem was mentioned in #1897.
This commit is contained in:
Eelco Dolstra 2018-02-23 13:00:42 +01:00
parent 39b4177500
commit 64e486ab63
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GPG key ID: 8170B4726D7198DE
1 changed files with 2 additions and 2 deletions
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4
src/libstore/download.cc
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@ -717,7 +717,7 @@ Path Downloader::downloadCached(ref<Store> store, const string & url_, bool unpa
Path tmpDir = createTempDir();
AutoDelete autoDelete(tmpDir, true);
// FIXME: this requires GNU tar for decompression.
runProgram("tar", true, {"xf", storePath, "-C", tmpDir, "--strip-components", "1"});
runProgram("tar", true, {"xf", store->toRealPath(storePath), "-C", tmpDir, "--strip-components", "1"});
unpackedStorePath = store->addToStore(name, tmpDir, true, htSHA256, defaultPathFilter, NoRepair);
}
replaceSymlink(unpackedStorePath, unpackedLink);
@ -727,7 +727,7 @@ Path Downloader::downloadCached(ref<Store> store, const string & url_, bool unpa
if (expectedStorePath != "" && storePath != expectedStorePath)
throw nix::Error("store path mismatch in file downloaded from '%s'", url);
return storePath;
return store->toRealPath(storePath);
}