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switch-prebuilt: check for existence before nix copy

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This commit is contained in:
Luke Granger-Brown 2021-03-20 13:37:08 +00:00
parent 422c47c3e0
commit 5cf89fbc2f
1 changed files with 5 additions and 2 deletions
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7
ops/nixos/lib/switch-prebuilt.nix
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@ -10,8 +10,11 @@ pkgs.writeShellScriptBin "switch-prebuilt" ''
export AWS_SECRET_ACCESS_KEY="${depot.ops.secrets.nixCache.AWS_SECRET_ACCESS_KEY}"
system="''${1}"
# We should be a trusted-user.
nix copy -v --from 's3://lukegb-nix-cache?endpoint=storage.googleapis.com' --no-check-sigs "$system"
if [[ ! -e "$system" ]]; then
# We should be a trusted-user.
nix copy -v --from 's3://lukegb-nix-cache?endpoint=storage.googleapis.com' --no-check-sigs "$system"
fi
diff "$system/etc/hostname" "/etc/hostname"
# The next phase requires sudo, but it's harmless to run the preceding commands twice.