nix-dotfiles/utils/attic-push.bash

#!/usr/bin/env nix
#! nix shell nixpkgs#bash nixpkgs#jq nixpkgs#gnused nixpkgs#nixVersions.latest nixpkgs#attic-client --command bash

#set -x
#set -v
set -e

# retrieve all paths under 2G
# nix_paths=$(nix path-info --json --all --closure-size \
#   | jq 'map_values(.closureSize | select(. < 2e9)) | to_entries | sort_by(.value)' \
#   | jq 'map(.key) | join("\n")' | sed -E -e 's/\\n/\n/g;s/^"//g;s/"$//g')

# retrieve all paths
nix_paths=$(nix path-info --json --all --closure-size |
  jq 'map_values(.closureSize | select(true)) | to_entries | sort_by(.value)' |
  jq 'map(.key) | join("\n")' | sed -E -e 's/\\n/\n/g;s/^"//g;s/"$//g')

readarray -t nix_path_array < <(echo "$nix_paths")

batchsize=1000

for ((i = 0; i < ${#nix_path_array[@]}; i += batchsize)); do
  part=("${nix_path_array[@]:i:batchsize}")

  attic push nix-cache "${part[@]}"
done