diff options
| -rw-r--r-- | src/normalise.cc | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/normalise.cc b/src/normalise.cc index 3f138a53e..2fa6f7f40 100644 --- a/src/normalise.cc +++ b/src/normalise.cc @@ -152,11 +152,20 @@ FSId normaliseFState(FSId id, FSIdSet pending) if (!fastBuild) { - /* Check that none of the outputs exist. */ + /* If any of the outputs already exist but are not registered, + delete them. */ for (OutPaths::iterator i = outPaths.begin(); i != outPaths.end(); i++) - if (pathExists(i->first)) - throw Error(format("path `%1%' exists") % i->first); + { + string path = i->first; + FSId id; + if (queryPathId(path, id)) + throw Error(format("obstructed build: path `%1%' exists") % path); + if (pathExists(path)) { + debug(format("removing unregistered path `%1%'") % path); + deletePath(path); + } + } /* Run the builder. */ msg(lvlChatty, format("building...")); |