git.scottworley.com Git - nix-pin-deps/blob - README.md

   1 nix-pin-deps: GC-anchor a Nix build's dependencies
   2 --------------------------------------------------
   3
   4 When a Nix build fails for lack of disk space and a `nix-collect-garbage`
   5 is needed to make disk space available, `nix-collect-garbage` will
   6 unhelpfully delete the successfully-built dependencies of the derivation
   7 that failed because they are are not yet gc-anchored, because the
   8 build failed.
   9
  10 This tool solves this problem:
  11
  12   `nix-pin-deps /nix/store/...-foo.drv foo-deps`
  13
  14 will create gc-anchors in foo-deps/ for all of the dependencies of foo.drv
  15 that exist in the nix store, keeping partial build progress safe from
  16 `nix-collect-garbage`.