2020-02-27 00:12:17 +11:00
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#!/usr/bin/env bash
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set -euo pipefail
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2023-03-09 08:24:48 +11:00
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if nix_path="$(type -p nix)" ; then
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echo "Aborting: Nix is already installed at ${nix_path}"
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2020-11-02 22:35:39 +11:00
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exit
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fi
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2022-06-27 07:23:14 +10:00
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# GitHub command to put the following log messages into a group which is collapsed by default
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echo "::group::Installing Nix"
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2021-11-18 07:55:09 +11:00
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# Create a temporary workdir
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workdir=$(mktemp -d)
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trap 'rm -rf "$workdir"' EXIT
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2020-08-26 02:26:01 +10:00
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# Configure Nix
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add_config() {
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2023-03-09 08:26:30 +11:00
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echo "$1" >> "$workdir/nix.conf"
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2020-08-26 02:26:01 +10:00
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}
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2023-07-06 20:03:24 +10:00
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add_config "show-trace = true"
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2020-05-26 22:34:45 +10:00
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# Set jobs to number of cores
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2020-08-26 02:26:01 +10:00
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add_config "max-jobs = auto"
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2023-06-17 04:51:34 +10:00
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if [[ $OSTYPE =~ darwin ]]; then
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add_config "ssl-cert-file = /etc/ssl/cert.pem"
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fi
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2020-09-21 21:51:23 +10:00
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# Allow binary caches for user
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2023-03-01 16:48:32 +11:00
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add_config "trusted-users = root ${USER:-}"
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2022-12-28 05:51:55 +11:00
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# Add github access token
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2023-02-06 02:35:01 +11:00
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if [[ -n "${INPUT_GITHUB_ACCESS_TOKEN:-}" ]]; then
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2023-01-08 15:10:13 +11:00
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add_config "access-tokens = github.com=$INPUT_GITHUB_ACCESS_TOKEN"
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2023-02-06 02:35:01 +11:00
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elif [[ -n "${GITHUB_TOKEN:-}" ]]; then
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add_config "access-tokens = github.com=$GITHUB_TOKEN"
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2022-12-28 05:51:55 +11:00
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fi
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2020-08-26 02:13:35 +10:00
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# Append extra nix configuration if provided
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2023-03-09 08:30:16 +11:00
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if [[ -n "${INPUT_EXTRA_NIX_CONFIG:-}" ]]; then
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2020-08-26 02:26:01 +10:00
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add_config "$INPUT_EXTRA_NIX_CONFIG"
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2020-08-26 02:07:38 +10:00
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fi
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2021-11-18 07:55:09 +11:00
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if [[ ! $INPUT_EXTRA_NIX_CONFIG =~ "experimental-features" ]]; then
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2021-11-06 08:28:02 +11:00
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add_config "experimental-features = nix-command flakes"
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fi
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2020-08-26 02:07:38 +10:00
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2020-08-26 02:26:01 +10:00
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# Nix installer flags
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installer_options=(
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2020-09-21 21:51:23 +10:00
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--no-channel-add
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2020-08-26 02:07:38 +10:00
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--darwin-use-unencrypted-nix-store-volume
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2021-11-18 07:55:09 +11:00
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--nix-extra-conf-file "$workdir/nix.conf"
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2020-08-26 02:07:38 +10:00
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)
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2021-08-23 22:12:02 +10:00
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2023-07-23 03:54:05 +10:00
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if [[ $OSTYPE =~ darwin ]]; then
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dameon_user_count="$(sysctl -n hw.logicalcpu_max)"
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else
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dameon_user_count="$(nproc --all)"
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fi
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2021-08-26 03:15:46 +10:00
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# only use the nix-daemon settings if on darwin (which get ignored) or systemd is supported
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2022-12-16 13:43:21 +11:00
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if [[ (! $INPUT_INSTALL_OPTIONS =~ "--no-daemon") && ($OSTYPE =~ darwin || -e /run/systemd/system) ]]; then
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2021-08-23 22:12:02 +10:00
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installer_options+=(
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--daemon
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2023-07-23 03:54:05 +10:00
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--daemon-user-count "$dameon_user_count"
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2021-08-23 22:12:02 +10:00
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)
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else
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# "fix" the following error when running nix*
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# error: the group 'nixbld' specified in 'build-users-group' does not exist
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2021-11-09 03:36:25 +11:00
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add_config "build-users-group ="
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2022-03-11 09:28:37 +11:00
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sudo mkdir -p /etc/nix
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sudo chmod 0755 /etc/nix
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2023-03-09 08:23:20 +11:00
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sudo cp "$workdir/nix.conf" /etc/nix/nix.conf
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2021-08-23 22:12:02 +10:00
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fi
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2023-03-09 08:30:16 +11:00
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if [[ -n "${INPUT_INSTALL_OPTIONS:-}" ]]; then
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2021-11-18 09:02:06 +11:00
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IFS=' ' read -r -a extra_installer_options <<< "$INPUT_INSTALL_OPTIONS"
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2021-02-22 01:00:04 +11:00
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installer_options=("${extra_installer_options[@]}" "${installer_options[@]}")
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2021-02-21 08:46:57 +11:00
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fi
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2020-02-27 00:12:17 +11:00
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2021-11-18 09:02:06 +11:00
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echo "installer options: ${installer_options[*]}"
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2021-11-02 05:04:45 +11:00
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# There is --retry-on-errors, but only newer curl versions support that
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2021-11-18 09:11:38 +11:00
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curl_retries=5
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2023-06-17 04:51:56 +10:00
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while ! curl -sS -o "$workdir/install" -v --fail -L "${INPUT_INSTALL_URL:-https://releases.nixos.org/nix/nix-2.16.1/install}"
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2021-11-02 05:04:45 +11:00
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do
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sleep 1
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2021-11-18 09:11:38 +11:00
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((curl_retries--))
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if [[ $curl_retries -le 0 ]]; then
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echo "curl retries failed" >&2
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exit 1
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fi
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2021-11-02 05:04:45 +11:00
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done
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2021-11-18 07:55:09 +11:00
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sh "$workdir/install" "${installer_options[@]}"
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2020-05-27 21:17:01 +10:00
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2020-02-27 00:12:17 +11:00
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# Set paths
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2020-12-23 06:11:29 +11:00
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echo "/nix/var/nix/profiles/default/bin" >> "$GITHUB_PATH"
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2023-03-01 16:29:17 +11:00
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# new path for nix 2.14
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echo "$HOME/.nix-profile/bin" >> "$GITHUB_PATH"
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2020-05-29 00:25:05 +10:00
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2023-03-09 08:30:16 +11:00
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if [[ -n "${INPUT_NIX_PATH:-}" ]]; then
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2020-12-23 06:11:29 +11:00
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echo "NIX_PATH=${INPUT_NIX_PATH}" >> "$GITHUB_ENV"
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2020-05-29 00:25:05 +10:00
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fi
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2022-06-27 07:23:14 +10:00
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# Close the log message group which was opened above
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echo "::endgroup::"
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