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createDirs(): Handle ‘path’ being a symlink

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In particular, this fixes "nix-build -o /tmp/result" on Mac OS X
(where /tmp is a symlink).
This commit is contained in:
Eelco Dolstra 2014-10-03 16:53:28 +02:00
parent a17c23426e
commit 3800f441e4
1 changed files with 3 additions and 0 deletions
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3
src/libutil/util.cc
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@ -383,6 +383,9 @@ Paths createDirs(const Path & path)
created.push_back(path);
}
if (S_ISLNK(st.st_mode) && stat(path.c_str(), &st) == -1)
throw SysError(format("statting symlink ‘%1%’") % path);
if (!S_ISDIR(st.st_mode)) throw Error(format("‘%1%’ is not a directory") % path);
return created;