install-nix-action/lib/install-nix.sh
2020-08-25 18:56:36 +02:00

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#!/usr/bin/env bash
set -euo pipefail
# Configure Nix
add_config() {
echo "$1" | sudo tee -a /tmp/nix.conf >/dev/null
}
# Set jobs to number of cores
add_config "max-jobs = auto"
# Allow binary caches for runner user
add_config "trusted-users = root runner"
# Append extra nix configuration if provided
if [[ $INPUT_EXTRA_NIX_CONFIG != "" ]]; then
add_config "$INPUT_EXTRA_NIX_CONFIG"
fi
# Nix installer flags
installer_options=(
--daemon
--daemon-user-count 4
--darwin-use-unencrypted-nix-store-volume
--nix-extra-conf-file /tmp/nix.conf
)
if [[ $INPUT_SKIP_ADDING_NIXPKGS_CHANNEL = "true" || $INPUT_NIX_PATH != "" ]]; then
installer_options+=(--no-channel-add)
else
INPUT_NIX_PATH="/nix/var/nix/profiles/per-user/root/channels"
fi
sh <(curl --retry 5 --retry-connrefused -L "${INPUT_INSTALL_URL:-https://nixos.org/nix/install}") \
"${installer_options[@]}"
if [[ $OSTYPE =~ darwin ]]; then
# Disable spotlight indexing of /nix to speed up performance
sudo mdutil -i off /nix
# macOS needs certificates hints
cert_file=/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt
echo "::set-env name=NIX_SSL_CERT_FILE::$cert_file"
export NIX_SSL_CERT_FILE=$cert_file
sudo launchctl setenv NIX_SSL_CERT_FILE "$cert_file"
fi
# Set paths
echo "::add-path::/nix/var/nix/profiles/per-user/runner/profile/bin"
echo "::add-path::/nix/var/nix/profiles/default/bin"
if [[ $INPUT_NIX_PATH != "" ]]; then
echo "::set-env name=NIX_PATH::${INPUT_NIX_PATH}"
fi