mirror of
https://github.com/cachix/install-nix-action.git
synced 2024-11-23 17:10:53 +00:00
92 lines
2.7 KiB
Bash
Executable file
92 lines
2.7 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
set -euo pipefail
|
|
|
|
if type -p nix &>/dev/null ; then
|
|
echo "Aborting: Nix is already installed at $(type -p nix)"
|
|
exit
|
|
fi
|
|
|
|
# GitHub command to put the following log messages into a group which is collapsed by default
|
|
echo "::group::Installing Nix"
|
|
|
|
# Create a temporary workdir
|
|
workdir=$(mktemp -d)
|
|
trap 'rm -rf "$workdir"' EXIT
|
|
|
|
# Configure Nix
|
|
add_config() {
|
|
echo "$1" | tee -a "$workdir/nix.conf" >/dev/null
|
|
}
|
|
# Set jobs to number of cores
|
|
add_config "max-jobs = auto"
|
|
# Allow binary caches for user
|
|
add_config "trusted-users = root $USER"
|
|
# Append extra nix configuration if provided
|
|
if [[ $INPUT_EXTRA_NIX_CONFIG != "" ]]; then
|
|
add_config "$INPUT_EXTRA_NIX_CONFIG"
|
|
fi
|
|
if [[ ! $INPUT_EXTRA_NIX_CONFIG =~ "experimental-features" ]]; then
|
|
add_config "experimental-features = nix-command flakes"
|
|
fi
|
|
|
|
# Nix installer flags
|
|
installer_options=(
|
|
--no-channel-add
|
|
--darwin-use-unencrypted-nix-store-volume
|
|
--nix-extra-conf-file "$workdir/nix.conf"
|
|
)
|
|
|
|
# only use the nix-daemon settings if on darwin (which get ignored) or systemd is supported
|
|
if [[ $OSTYPE =~ darwin || -e /run/systemd/system ]]; then
|
|
installer_options+=(
|
|
--daemon
|
|
--daemon-user-count "$(python3 -c 'import multiprocessing as mp; print(mp.cpu_count() * 2)')"
|
|
)
|
|
else
|
|
# "fix" the following error when running nix*
|
|
# error: the group 'nixbld' specified in 'build-users-group' does not exist
|
|
add_config "build-users-group ="
|
|
sudo mkdir -p /etc/nix
|
|
sudo chmod 0755 /etc/nix
|
|
sudo cp $workdir/nix.conf /etc/nix/nix.conf
|
|
fi
|
|
|
|
if [[ $INPUT_INSTALL_OPTIONS != "" ]]; then
|
|
IFS=' ' read -r -a extra_installer_options <<< "$INPUT_INSTALL_OPTIONS"
|
|
installer_options=("${extra_installer_options[@]}" "${installer_options[@]}")
|
|
fi
|
|
|
|
echo "installer options: ${installer_options[*]}"
|
|
|
|
# There is --retry-on-errors, but only newer curl versions support that
|
|
curl_retries=5
|
|
while ! curl -sS -o "$workdir/install" -v --fail -L "${INPUT_INSTALL_URL:-https://nixos.org/nix/install}"
|
|
do
|
|
sleep 1
|
|
((curl_retries--))
|
|
if [[ $curl_retries -le 0 ]]; then
|
|
echo "curl retries failed" >&2
|
|
exit 1
|
|
fi
|
|
done
|
|
|
|
sh "$workdir/install" "${installer_options[@]}"
|
|
|
|
if [[ $OSTYPE =~ darwin ]]; then
|
|
# macOS needs certificates hints
|
|
cert_file=/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt
|
|
echo "NIX_SSL_CERT_FILE=$cert_file" >> "$GITHUB_ENV"
|
|
export NIX_SSL_CERT_FILE=$cert_file
|
|
sudo launchctl setenv NIX_SSL_CERT_FILE "$cert_file"
|
|
fi
|
|
|
|
# Set paths
|
|
echo "/nix/var/nix/profiles/default/bin" >> "$GITHUB_PATH"
|
|
echo "/nix/var/nix/profiles/per-user/$USER/profile/bin" >> "$GITHUB_PATH"
|
|
|
|
if [[ $INPUT_NIX_PATH != "" ]]; then
|
|
echo "NIX_PATH=${INPUT_NIX_PATH}" >> "$GITHUB_ENV"
|
|
fi
|
|
|
|
# Close the log message group which was opened above
|
|
echo "::endgroup::"
|