From 258897c265a6d6575f1669a896ab6f5ab92337c3 Mon Sep 17 00:00:00 2001 From: Eelco Dolstra Date: Thu, 4 Apr 2013 11:16:26 +0200 Subject: [PATCH] Complain if /homeless-shelter exists --- src/libstore/build.cc | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/libstore/build.cc b/src/libstore/build.cc index 73223bc1ad..1370568109 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -1697,7 +1697,8 @@ void DerivationGoal::startBuilder() if HOME is not set, but they will just assume that the settings file they are looking for does not exist if HOME is set but points to some non-existing path. */ - env["HOME"] = "/homeless-shelter"; + Path homeDir = "/homeless-shelter"; + env["HOME"] = homeDir; /* Tell the builder where the Nix store is. Usually they shouldn't care, but this is useful for purity checking (e.g., @@ -1946,6 +1947,9 @@ void DerivationGoal::startBuilder() else { + if (pathExists(homeDir)) + throw Error(format("directory `%1%' exists; please remove it") % homeDir); + /* We're not doing a chroot build, but we have some valid output paths. Since we can't just overwrite or delete them, we have to do hash rewriting: i.e. in the