gc.cc: Ignore hidden files in temproots #3482
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Thanks! |
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Thanks! This also will fix cases where the nix store is stored in a NFS share. |
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While trying out Nix on Gentoo, I noticed that
nix-collect-garbagefailed, outputting simplyerror: stoi. Investigating a bit, I noticed that in/nix/var/nix/temproots, there was a file called.keep_sys-apps_nix-0, which Nix tried to interpret as a process ID (and failed, of course). Apparently, Gentoo puts such files in directories in order to remember if any package wants this directory there (even if might be currently empty). If the file's not there, Gentoo will delete the directory.Since creating the temproots directory dynamically seemed a bit "unsafe", I changed the GC code so that hidden files are ignored. I'm not sure myself if that's a good solution, to be honest. But it does improve interoperability with other package managers, apparently.