continuwuity/bin/nix-build-and-cache

#!/usr/bin/env bash

set -eo pipefail

toplevel="$(git rev-parse --show-toplevel)"

# Build just the single installable and forward any other arguments too
just() {
    # uses nix-output-monitor (nom) if available
    if command -v nom &> /dev/null; then
        nom build "$@"
    else
        nix build -L "$@"
    fi

    if [ ! -z "$ATTIC_TOKEN" ]; then
        # historical "conduit" store for compatibility purposes, same as conduwuit
        nix run --inputs-from "$toplevel" attic -- \
            login \
            conduit \
            "${ATTIC_ENDPOINT:-https://attic.kennel.juneis.dog/conduit}" \
            "$ATTIC_TOKEN"

        readarray -t outputs < <(nix path-info "$@")
        readarray -t derivations < <(nix path-info "$@" --derivation)

        # Push the target installable and its build dependencies
        nix run --inputs-from "$toplevel" attic -- \
            push \
            conduit \
            "${outputs[@]}" \
            "${derivations[@]}"

        # main "conduwuit" store
        nix run --inputs-from "$toplevel" attic -- \
            login \
            conduwuit \
            "${ATTIC_ENDPOINT:-https://attic.kennel.juneis.dog/conduwuit}" \
            "$ATTIC_TOKEN"

        # Push the target installable and its build dependencies
        nix run --inputs-from "$toplevel" attic -- \
            push \
            conduwuit \
            "${outputs[@]}" \
            "${derivations[@]}"
    else
        echo "\$ATTIC_TOKEN is unset, skipping uploading to the binary cache"
    fi

}

# Build and cache things needed for CI
ci() {
    cache=(
        --inputs-from "$toplevel"

        # Keep sorted
        "$toplevel#devShells.x86_64-linux.default.inputDerivation"
        attic#default
        nixpkgs#direnv
        nixpkgs#jq
        nixpkgs#nix-direnv
    )

    just "${cache[@]}"
}

# Build and cache *all* the package outputs from the flake.nix
packages() {
    declare -a cache="($(
        nix flake show --json 2> /dev/null |
            nix run --inputs-from "$toplevel" nixpkgs#jq -- \
            -r \
            '.packages."x86_64-linux" | keys | map("'"$toplevel"'#" + .) | @sh'
    ))"

    just "${cache[@]}"
}


eval "$@"