forked from lix-project/lix
4f29cf1a1d
On Linux a user can go through all the way through the multi-user install and find out at the end that they now have to manually configure their init system to launch the nix daemon. I suspect that for a significant number of users this is not what they wanted. They might prefer a single-user install. Now they have to manually uninstall nix before they can go through the single-user install. This introduces a confirmation dialog before the install in that specific situation to make sure that they want to proceed. See also: https://github.com/NixOS/nix/issues/4999#issuecomment-1064188080 This closes #4999 but rejecting it and closing that issue anyways would also be valid.
938 lines
28 KiB
Bash
938 lines
28 KiB
Bash
#!/usr/bin/env bash
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set -eu
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set -o pipefail
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# Sourced from:
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# - https://github.com/LnL7/nix-darwin/blob/8c29d0985d74b4a990238497c47a2542a5616b3c/bootstrap.sh
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# - https://gist.github.com/expipiplus1/e571ce88c608a1e83547c918591b149f/ac504c6c1b96e65505fbda437a28ce563408ecb0
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# - https://github.com/NixOS/nixos-org-configurations/blob/a122f418797713d519aadf02e677fce0dc1cb446/delft/scripts/nix-mac-installer.sh
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# - https://github.com/matthewbauer/macNixOS/blob/f6045394f9153edea417be90c216788e754feaba/install-macNixOS.sh
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# - https://gist.github.com/LnL7/9717bd6cdcb30b086fd7f2093e5f8494/86b26f852ce563e973acd30f796a9a416248c34a
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#
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# however tracking which bits came from which would be impossible.
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readonly ESC='\033[0m'
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readonly BOLD='\033[1m'
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readonly BLUE='\033[34m'
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readonly BLUE_UL='\033[4;34m'
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readonly GREEN='\033[32m'
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readonly GREEN_UL='\033[4;32m'
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readonly RED='\033[31m'
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# installer allows overriding build user count to speed up installation
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# as creating each user takes non-trivial amount of time on macos
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readonly NIX_USER_COUNT=${NIX_USER_COUNT:-32}
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readonly NIX_BUILD_GROUP_ID="${NIX_BUILD_GROUP_ID:-30000}"
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readonly NIX_BUILD_GROUP_NAME="nixbld"
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# darwin installer needs to override these
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NIX_FIRST_BUILD_UID="${NIX_FIRST_BUILD_UID:-30001}"
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NIX_BUILD_USER_NAME_TEMPLATE="nixbld%d"
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# Please don't change this. We don't support it, because the
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# default shell profile that comes with Nix doesn't support it.
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readonly NIX_ROOT="/nix"
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readonly NIX_EXTRA_CONF=${NIX_EXTRA_CONF:-}
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readonly PROFILE_TARGETS=("/etc/bashrc" "/etc/profile.d/nix.sh" "/etc/zshrc" "/etc/bash.bashrc" "/etc/zsh/zshrc")
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readonly PROFILE_BACKUP_SUFFIX=".backup-before-nix"
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readonly PROFILE_NIX_FILE="$NIX_ROOT/var/nix/profiles/default/etc/profile.d/nix-daemon.sh"
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readonly NIX_INSTALLED_NIX="@nix@"
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readonly NIX_INSTALLED_CACERT="@cacert@"
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#readonly NIX_INSTALLED_NIX="/nix/store/j8dbv5w6jl34caywh2ygdy88knx1mdf7-nix-2.3.6"
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#readonly NIX_INSTALLED_CACERT="/nix/store/7dxhzymvy330i28ii676fl1pqwcahv2f-nss-cacert-3.49.2"
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readonly EXTRACTED_NIX_PATH="$(dirname "$0")"
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readonly ROOT_HOME=~root
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if [ -t 0 ]; then
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readonly IS_HEADLESS='no'
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else
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readonly IS_HEADLESS='yes'
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fi
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headless() {
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if [ "$IS_HEADLESS" = "yes" ]; then
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return 0
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else
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return 1
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fi
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}
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contact_us() {
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echo "You can open an issue at https://github.com/nixos/nix/issues"
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echo ""
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echo "Or feel free to contact the team:"
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echo " - Matrix: #nix:nixos.org"
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echo " - IRC: in #nixos on irc.libera.chat"
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echo " - twitter: @nixos_org"
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echo " - forum: https://discourse.nixos.org"
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}
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get_help() {
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echo "We'd love to help if you need it."
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echo ""
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contact_us
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}
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uninstall_directions() {
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subheader "Uninstalling nix:"
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local step=0
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if poly_service_installed_check; then
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step=$((step + 1))
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poly_service_uninstall_directions "$step"
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fi
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for profile_target in "${PROFILE_TARGETS[@]}"; do
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if [ -e "$profile_target" ] && [ -e "$profile_target$PROFILE_BACKUP_SUFFIX" ]; then
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step=$((step + 1))
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cat <<EOF
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$step. Restore $profile_target$PROFILE_BACKUP_SUFFIX back to $profile_target
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sudo mv $profile_target$PROFILE_BACKUP_SUFFIX $profile_target
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(after this one, you may need to re-open any terminals that were
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opened while it existed.)
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EOF
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fi
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done
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step=$((step + 1))
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cat <<EOF
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$step. Delete the files Nix added to your system:
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sudo rm -rf /etc/nix $NIX_ROOT $ROOT_HOME/.nix-profile $ROOT_HOME/.nix-defexpr $ROOT_HOME/.nix-channels $HOME/.nix-profile $HOME/.nix-defexpr $HOME/.nix-channels
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and that is it.
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EOF
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}
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nix_user_for_core() {
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printf "$NIX_BUILD_USER_NAME_TEMPLATE" "$1"
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}
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nix_uid_for_core() {
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echo $((NIX_FIRST_BUILD_UID + $1 - 1))
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}
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_textout() {
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echo -en "$1"
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shift
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if [ "$*" = "" ]; then
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cat
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else
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echo "$@"
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fi
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echo -en "$ESC"
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}
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header() {
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follow="---------------------------------------------------------"
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header=$(echo "---- $* $follow$follow$follow" | head -c 80)
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echo ""
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_textout "$BLUE" "$header"
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}
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warningheader() {
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follow="---------------------------------------------------------"
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header=$(echo "---- $* $follow$follow$follow" | head -c 80)
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echo ""
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_textout "$RED" "$header"
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}
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subheader() {
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echo ""
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_textout "$BLUE_UL" "$*"
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}
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row() {
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printf "$BOLD%s$ESC:\\t%s\\n" "$1" "$2"
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}
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task() {
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echo ""
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ok "~~> $1"
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}
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bold() {
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echo "$BOLD$*$ESC"
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}
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ok() {
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_textout "$GREEN" "$@"
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}
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warning() {
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warningheader "warning!"
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cat
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echo ""
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}
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failure() {
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header "oh no!"
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_textout "$RED" "$@"
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echo ""
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_textout "$RED" "$(get_help)"
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trap finish_cleanup EXIT
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exit 1
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}
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ui_confirm() {
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_textout "$GREEN$GREEN_UL" "$1"
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if headless; then
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echo "No TTY, assuming you would say yes :)"
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return 0
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fi
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local prompt="[y/n] "
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echo -n "$prompt"
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while read -r y; do
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if [ "$y" = "y" ]; then
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echo ""
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return 0
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elif [ "$y" = "n" ]; then
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echo ""
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return 1
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else
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_textout "$RED" "Sorry, I didn't understand. I can only understand answers of y or n"
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echo -n "$prompt"
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fi
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done
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echo ""
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return 1
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}
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printf -v _UNCHANGED_GRP_FMT "%b" $'\033[2m%='"$ESC" # "dim"
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# bold+invert+red and bold+invert+green just for the +/- below
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# red/green foreground for rest of the line
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printf -v _OLD_LINE_FMT "%b" $'\033[1;7;31m-'"$ESC ${RED}%L${ESC}"
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printf -v _NEW_LINE_FMT "%b" $'\033[1;7;32m+'"$ESC ${GREEN}%L${ESC}"
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_diff() {
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# simple colorized diff comatible w/ pre `--color` versions
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diff --unchanged-group-format="$_UNCHANGED_GRP_FMT" --old-line-format="$_OLD_LINE_FMT" --new-line-format="$_NEW_LINE_FMT" --unchanged-line-format=" %L" "$@"
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}
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confirm_rm() {
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local path="$1"
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if ui_confirm "Can I remove $path?"; then
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_sudo "to remove $path" rm "$path"
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fi
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}
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confirm_edit() {
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local path="$1"
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local edit_path="$2"
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cat <<EOF
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Nix isn't the only thing in $path,
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but I think I know how to edit it out.
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Here's the diff:
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EOF
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# could technically test the diff, but caller should do it
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_diff "$path" "$edit_path"
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if ui_confirm "Does the change above look right?"; then
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_sudo "remove nix from $path" cp "$edit_path" "$path"
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fi
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}
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_SERIOUS_BUSINESS="${RED}%s:${ESC} "
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password_confirm() {
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local do_something_consequential="$1"
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if ui_confirm "Can I $do_something_consequential?"; then
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# shellcheck disable=SC2059
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sudo -kv --prompt="$(printf "${_SERIOUS_BUSINESS}" "Enter your password to $do_something_consequential")"
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else
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return 1
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fi
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}
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# Support accumulating reminders over the course of a run and showing
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# them at the end. An example where this helps: the installer changes
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# something, but it won't work without a reboot. If you tell the user
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# when you do it, they may miss it in the stream. The value of the
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# setting isn't enough to decide whether to message because you only
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# need to message if you *changed* it.
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# reminders stored in array delimited by empty entry; if ! headless,
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# user is asked to confirm after each delimiter.
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_reminders=()
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((_remind_num=1))
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remind() {
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# (( arithmetic expression ))
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if (( _remind_num > 1 )); then
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header "Reminders"
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for line in "${_reminders[@]}"; do
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echo "$line"
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if ! headless && [ "${#line}" = 0 ]; then
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if read -r -p "Press enter/return to acknowledge."; then
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printf $'\033[A\33[2K\r'
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fi
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fi
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done
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fi
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}
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reminder() {
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printf -v label "${BLUE}[ %d ]${ESC}" "$_remind_num"
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_reminders+=("$label")
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if [[ "$*" = "" ]]; then
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while read -r line; do
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_reminders+=("$line")
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done
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else
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# this expands each arg to an array entry (and each entry will
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# ultimately be a separate line in the output)
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_reminders+=("$@")
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fi
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_reminders+=("")
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((_remind_num++))
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}
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__sudo() {
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local expl="$1"
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local cmd="$2"
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shift
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header "sudo execution"
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echo "I am executing:"
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echo ""
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printf " $ sudo %s\\n" "$cmd"
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echo ""
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echo "$expl"
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echo ""
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return 0
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}
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_sudo() {
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local expl="$1"
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shift
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if ! headless; then
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__sudo "$expl" "$*" >&2
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fi
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sudo "$@"
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}
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readonly SCRATCH=$(mktemp -d "${TMPDIR:-/tmp/}tmp.XXXXXXXXXX")
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finish_cleanup() {
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rm -rf "$SCRATCH"
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}
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finish_fail() {
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finish_cleanup
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failure <<EOF
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Jeeze, something went wrong. If you can take all the output and open
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an issue, we'd love to fix the problem so nobody else has this issue.
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:(
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EOF
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}
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trap finish_fail EXIT
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finish_success() {
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ok "Alright! We're done!"
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cat <<EOF
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Try it! Open a new terminal, and type:
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$(poly_extra_try_me_commands)
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$ nix-shell -p nix-info --run "nix-info -m"
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Thank you for using this installer. If you have any feedback or need
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help, don't hesitate:
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$(contact_us)
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EOF
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remind
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finish_cleanup
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}
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finish_uninstall_success() {
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ok "Alright! Nix should be removed!"
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cat <<EOF
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If you spot anything this uninstaller missed or have feedback,
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don't hesitate:
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$(contact_us)
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EOF
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remind
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finish_cleanup
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}
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remove_nix_artifacts() {
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failure "Not implemented yet"
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}
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cure_artifacts() {
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poly_cure_artifacts
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# remove_nix_artifacts (LATER)
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}
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validate_starting_assumptions() {
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task "Checking for artifacts of previous installs"
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cat <<EOF
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Before I try to install, I'll check for signs Nix already is or has
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been installed on this system.
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EOF
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if type nix-env 2> /dev/null >&2; then
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warning <<EOF
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Nix already appears to be installed. This installer may run into issues.
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If an error occurs, try manually uninstalling, then rerunning this script.
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$(uninstall_directions)
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EOF
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fi
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# TODO: I think it would be good for this step to accumulate more
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# knowledge of older obsolete artifacts, if there are any.
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# We could issue a "reminder" here that the user might want
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# to clean them up?
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for profile_target in "${PROFILE_TARGETS[@]}"; do
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# TODO: I think it would be good to accumulate a list of all
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# of the copies so that people don't hit this 2 or 3x in
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# a row for different files.
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if [ -e "$profile_target$PROFILE_BACKUP_SUFFIX" ]; then
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# this backup process first released in Nix 2.1
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failure <<EOF
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I back up shell profile/rc scripts before I add Nix to them.
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I need to back up $profile_target to $profile_target$PROFILE_BACKUP_SUFFIX,
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but the latter already exists.
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Here's how to clean up the old backup file:
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1. Back up (copy) $profile_target and $profile_target$PROFILE_BACKUP_SUFFIX
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to another location, just in case.
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2. Ensure $profile_target$PROFILE_BACKUP_SUFFIX does not have anything
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Nix-related in it. If it does, something is probably quite
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wrong. Please open an issue or get in touch immediately.
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3. Once you confirm $profile_target is backed up and
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$profile_target$PROFILE_BACKUP_SUFFIX doesn't mention Nix, run:
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mv $profile_target$PROFILE_BACKUP_SUFFIX $profile_target
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EOF
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fi
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done
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if [ "$(uname -s)" = "Linux" ] && [ ! -e /run/systemd/system ]; then
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warning <<EOF
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We did not detect systemd on your system. With a multi-user install
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without systemd you will have to manually configure your init system to
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launch the Nix daemon after installation.
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EOF
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if ! ui_confirm "Do you want to proceed with a multi-user installation?"; then
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failure <<EOF
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You have aborted the installation.
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EOF
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fi
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fi
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}
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setup_report() {
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header "Nix config report"
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row " Temp Dir" "$SCRATCH"
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row " Nix Root" "$NIX_ROOT"
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row " Build Users" "$NIX_USER_COUNT"
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row " Build Group ID" "$NIX_BUILD_GROUP_ID"
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row "Build Group Name" "$NIX_BUILD_GROUP_NAME"
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if [ "${ALLOW_PREEXISTING_INSTALLATION:-}" != "" ]; then
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row "Preexisting Install" "Allowed"
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fi
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subheader "build users:"
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row " Username" "UID"
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for i in $(seq 1 "$NIX_USER_COUNT"); do
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row " $(nix_user_for_core "$i")" "$(nix_uid_for_core "$i")"
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done
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echo ""
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}
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create_build_group() {
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local primary_group_id
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task "Setting up the build group $NIX_BUILD_GROUP_NAME"
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if ! poly_group_exists "$NIX_BUILD_GROUP_NAME"; then
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poly_create_build_group
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row " Created" "Yes"
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else
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primary_group_id=$(poly_group_id_get "$NIX_BUILD_GROUP_NAME")
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if [ "$primary_group_id" -ne "$NIX_BUILD_GROUP_ID" ]; then
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failure <<EOF
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It seems the build group $NIX_BUILD_GROUP_NAME already exists, but
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with the UID $primary_group_id. This script can't really handle
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that right now, so I'm going to give up.
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You can fix this by editing this script and changing the
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NIX_BUILD_GROUP_ID variable near the top to from $NIX_BUILD_GROUP_ID
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to $primary_group_id and re-run.
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EOF
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else
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row " Exists" "Yes"
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fi
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fi
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}
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create_build_user_for_core() {
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local coreid
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local username
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local uid
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coreid="$1"
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username=$(nix_user_for_core "$coreid")
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uid=$(nix_uid_for_core "$coreid")
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task "Setting up the build user $username"
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if ! poly_user_exists "$username"; then
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poly_create_build_user "$username" "$uid" "$coreid"
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row " Created" "Yes"
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else
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actual_uid=$(poly_user_id_get "$username")
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if [ "$actual_uid" != "$uid" ]; then
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failure <<EOF
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It seems the build user $username already exists, but with the UID
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with the UID '$actual_uid'. This script can't really handle that right
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now, so I'm going to give up.
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If you already created the users and you know they start from
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$actual_uid and go up from there, you can edit this script and change
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NIX_FIRST_BUILD_UID near the top of the file to $actual_uid and try
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again.
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EOF
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else
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row " Exists" "Yes"
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fi
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fi
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|
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if [ "$(poly_user_hidden_get "$username")" = "1" ]; then
|
|
row " Hidden" "Yes"
|
|
else
|
|
poly_user_hidden_set "$username"
|
|
row " Hidden" "Yes"
|
|
fi
|
|
|
|
if [ "$(poly_user_home_get "$username")" = "/var/empty" ]; then
|
|
row " Home Directory" "/var/empty"
|
|
else
|
|
poly_user_home_set "$username" "/var/empty"
|
|
row " Home Directory" "/var/empty"
|
|
fi
|
|
|
|
# We use grep instead of an equality check because it is difficult
|
|
# to extract _just_ the user's note, instead it is prefixed with
|
|
# some plist junk. This was causing the user note to always be set,
|
|
# even if there was no reason for it.
|
|
if ! poly_user_note_get "$username" | grep -q "Nix build user $coreid"; then
|
|
row " Note" "Nix build user $coreid"
|
|
else
|
|
poly_user_note_set "$username" "Nix build user $coreid"
|
|
row " Note" "Nix build user $coreid"
|
|
fi
|
|
|
|
if [ "$(poly_user_shell_get "$username")" = "/sbin/nologin" ]; then
|
|
row " Logins Disabled" "Yes"
|
|
else
|
|
poly_user_shell_set "$username" "/sbin/nologin"
|
|
row " Logins Disabled" "Yes"
|
|
fi
|
|
|
|
if poly_user_in_group_check "$username" "$NIX_BUILD_GROUP_NAME"; then
|
|
row " Member of $NIX_BUILD_GROUP_NAME" "Yes"
|
|
else
|
|
poly_user_in_group_set "$username" "$NIX_BUILD_GROUP_NAME"
|
|
row " Member of $NIX_BUILD_GROUP_NAME" "Yes"
|
|
fi
|
|
|
|
if [ "$(poly_user_primary_group_get "$username")" = "$NIX_BUILD_GROUP_ID" ]; then
|
|
row " PrimaryGroupID" "$NIX_BUILD_GROUP_ID"
|
|
else
|
|
poly_user_primary_group_set "$username" "$NIX_BUILD_GROUP_ID"
|
|
row " PrimaryGroupID" "$NIX_BUILD_GROUP_ID"
|
|
fi
|
|
}
|
|
|
|
create_build_users() {
|
|
for i in $(seq 1 "$NIX_USER_COUNT"); do
|
|
create_build_user_for_core "$i"
|
|
done
|
|
}
|
|
|
|
create_directories() {
|
|
# FIXME: remove all of this because it duplicates LocalStore::LocalStore().
|
|
task "Setting up the basic directory structure"
|
|
if [ -d "$NIX_ROOT" ]; then
|
|
# if /nix already exists, take ownership
|
|
#
|
|
# Caution: notes below are macOS-y
|
|
# This is a bit of a goldilocks zone for taking ownership
|
|
# if there are already files on the volume; the volume is
|
|
# now mounted, but we haven't added a bunch of new files
|
|
|
|
# this is probably a bit slow; I've been seeing 3.3-4s even
|
|
# when promptly installed over a fresh single-user install.
|
|
# In case anyone's aware of a shortcut.
|
|
# `|| true`: .Trashes errors w/o full disk perm
|
|
|
|
# rumor per #4488 that macOS 11.2 may not have
|
|
# sbin on path, and that's where chown is, but
|
|
# since this bit is cross-platform:
|
|
# - first try with `command -vp` to try and find
|
|
# chown in the usual places
|
|
# * to work around some sort of deficiency in
|
|
# `command -p` in macOS bash 3.2, we also add
|
|
# PATH="$(getconf PATH 2>/dev/null)". As long as
|
|
# getconf is found, this should set a sane PATH
|
|
# which `command -p` in bash 3.2 appears to use.
|
|
# A bash with a properly-working `command -p`
|
|
# should ignore this hard-set PATH in favor of
|
|
# whatever it obtains internally. See
|
|
# github.com/NixOS/nix/issues/5768
|
|
# - fall back on `command -v` which would find
|
|
# any chown on path
|
|
# if we don't find one, the command is already
|
|
# hiding behind || true, and the general state
|
|
# should be one the user can repair once they
|
|
# figure out where chown is...
|
|
local get_chr_own="$(PATH="$(getconf PATH 2>/dev/null)" command -vp chown)"
|
|
if [[ -z "$get_chr_own" ]]; then
|
|
get_chr_own="$(command -v chown)"
|
|
fi
|
|
|
|
if [[ -z "$get_chr_own" ]]; then
|
|
reminder <<EOF
|
|
I wanted to take root ownership of existing Nix store files,
|
|
but I couldn't locate 'chown'. (You may need to fix your PATH.)
|
|
To manually change file ownership, you can run:
|
|
sudo chown -R 'root:$NIX_BUILD_GROUP_NAME' '$NIX_ROOT'
|
|
EOF
|
|
else
|
|
_sudo "to take root ownership of existing Nix store files" \
|
|
"$get_chr_own" -R "root:$NIX_BUILD_GROUP_NAME" "$NIX_ROOT" || true
|
|
fi
|
|
fi
|
|
_sudo "to make the basic directory structure of Nix (part 1)" \
|
|
install -dv -m 0755 /nix /nix/var /nix/var/log /nix/var/log/nix /nix/var/log/nix/drvs /nix/var/nix{,/db,/gcroots,/profiles,/temproots,/userpool,/daemon-socket} /nix/var/nix/{gcroots,profiles}/per-user
|
|
|
|
_sudo "to make the basic directory structure of Nix (part 2)" \
|
|
install -dv -g "$NIX_BUILD_GROUP_NAME" -m 1775 /nix/store
|
|
|
|
_sudo "to place the default nix daemon configuration (part 1)" \
|
|
install -dv -m 0555 /etc/nix
|
|
}
|
|
|
|
place_channel_configuration() {
|
|
if [ -z "${NIX_INSTALLER_NO_CHANNEL_ADD:-}" ]; then
|
|
echo "https://nixos.org/channels/nixpkgs-unstable nixpkgs" > "$SCRATCH/.nix-channels"
|
|
_sudo "to set up the default system channel (part 1)" \
|
|
install -m 0664 "$SCRATCH/.nix-channels" "$ROOT_HOME/.nix-channels"
|
|
fi
|
|
}
|
|
|
|
welcome_to_nix() {
|
|
ok "Welcome to the Multi-User Nix Installation"
|
|
|
|
cat <<EOF
|
|
|
|
This installation tool will set up your computer with the Nix package
|
|
manager. This will happen in a few stages:
|
|
|
|
1. Make sure your computer doesn't already have Nix. If it does, I
|
|
will show you instructions on how to clean up your old install.
|
|
|
|
2. Show you what I am going to install and where. Then I will ask
|
|
if you are ready to continue.
|
|
|
|
3. Create the system users and groups that the Nix daemon uses to run
|
|
builds.
|
|
|
|
4. Perform the basic installation of the Nix files daemon.
|
|
|
|
5. Configure your shell to import special Nix Profile files, so you
|
|
can use Nix.
|
|
|
|
6. Start the Nix daemon.
|
|
|
|
EOF
|
|
|
|
if ui_confirm "Would you like to see a more detailed list of what I will do?"; then
|
|
cat <<EOF
|
|
|
|
I will:
|
|
|
|
- make sure your computer doesn't already have Nix files
|
|
(if it does, I will tell you how to clean them up.)
|
|
- create local users (see the list above for the users I'll make)
|
|
- create a local group ($NIX_BUILD_GROUP_NAME)
|
|
- install Nix in to $NIX_ROOT
|
|
- create a configuration file in /etc/nix
|
|
- set up the "default profile" by creating some Nix-related files in
|
|
$ROOT_HOME
|
|
EOF
|
|
for profile_target in "${PROFILE_TARGETS[@]}"; do
|
|
if [ -e "$profile_target" ]; then
|
|
cat <<EOF
|
|
- back up $profile_target to $profile_target$PROFILE_BACKUP_SUFFIX
|
|
- update $profile_target to include some Nix configuration
|
|
EOF
|
|
fi
|
|
done
|
|
poly_service_setup_note
|
|
if ! ui_confirm "Ready to continue?"; then
|
|
failure <<EOF
|
|
Okay, maybe you would like to talk to the team.
|
|
EOF
|
|
fi
|
|
fi
|
|
}
|
|
|
|
chat_about_sudo() {
|
|
header "let's talk about sudo"
|
|
|
|
if headless; then
|
|
cat <<EOF
|
|
This script is going to call sudo a lot. Normally, it would show you
|
|
exactly what commands it is running and why. However, the script is
|
|
run in a headless fashion, like this:
|
|
|
|
$ curl -L https://nixos.org/nix/install | sh
|
|
|
|
or maybe in a CI pipeline. Because of that, I'm going to skip the
|
|
verbose output in the interest of brevity.
|
|
|
|
If you would like to
|
|
see the output, try like this:
|
|
|
|
$ curl -L -o install-nix https://nixos.org/nix/install
|
|
$ sh ./install-nix
|
|
|
|
EOF
|
|
return 0
|
|
fi
|
|
|
|
cat <<EOF
|
|
This script is going to call sudo a lot. Every time I do, it'll
|
|
output exactly what it'll do, and why.
|
|
|
|
Just like this:
|
|
EOF
|
|
|
|
__sudo "to demonstrate how our sudo prompts look" \
|
|
echo "this is a sudo prompt"
|
|
|
|
cat <<EOF
|
|
|
|
This might look scary, but everything can be undone by running just a
|
|
few commands. I used to ask you to confirm each time sudo ran, but it
|
|
was too many times. Instead, I'll just ask you this one time:
|
|
|
|
EOF
|
|
if ui_confirm "Can I use sudo?"; then
|
|
ok "Yay! Thanks! Let's get going!"
|
|
else
|
|
failure <<EOF
|
|
That is okay, but I can't install.
|
|
EOF
|
|
fi
|
|
}
|
|
|
|
install_from_extracted_nix() {
|
|
task "Installing Nix"
|
|
(
|
|
cd "$EXTRACTED_NIX_PATH"
|
|
|
|
_sudo "to copy the basic Nix files to the new store at $NIX_ROOT/store" \
|
|
cp -RPp ./store/* "$NIX_ROOT/store/"
|
|
|
|
_sudo "to make the new store non-writable at $NIX_ROOT/store" \
|
|
chmod -R ugo-w "$NIX_ROOT/store/"
|
|
|
|
if [ -d "$NIX_INSTALLED_NIX" ]; then
|
|
echo " Alright! We have our first nix at $NIX_INSTALLED_NIX"
|
|
else
|
|
failure <<EOF
|
|
Something went wrong, and I didn't find Nix installed at
|
|
$NIX_INSTALLED_NIX.
|
|
EOF
|
|
fi
|
|
|
|
_sudo "to load data for the first time in to the Nix Database" \
|
|
"$NIX_INSTALLED_NIX/bin/nix-store" --load-db < ./.reginfo
|
|
|
|
echo " Just finished getting the nix database ready."
|
|
)
|
|
}
|
|
|
|
shell_source_lines() {
|
|
cat <<EOF
|
|
|
|
# Nix
|
|
if [ -e '$PROFILE_NIX_FILE' ]; then
|
|
. '$PROFILE_NIX_FILE'
|
|
fi
|
|
# End Nix
|
|
|
|
EOF
|
|
}
|
|
|
|
configure_shell_profile() {
|
|
task "Setting up shell profiles: ${PROFILE_TARGETS[*]}"
|
|
for profile_target in "${PROFILE_TARGETS[@]}"; do
|
|
if [ -e "$profile_target" ]; then
|
|
_sudo "to back up your current $profile_target to $profile_target$PROFILE_BACKUP_SUFFIX" \
|
|
cp "$profile_target" "$profile_target$PROFILE_BACKUP_SUFFIX"
|
|
else
|
|
# try to create the file if its directory exists
|
|
target_dir="$(dirname "$profile_target")"
|
|
if [ -d "$target_dir" ]; then
|
|
_sudo "to create a stub $profile_target which will be updated" \
|
|
touch "$profile_target"
|
|
fi
|
|
fi
|
|
|
|
if [ -e "$profile_target" ]; then
|
|
shell_source_lines \
|
|
| _sudo "extend your $profile_target with nix-daemon settings" \
|
|
tee -a "$profile_target"
|
|
fi
|
|
done
|
|
# TODO: should we suggest '. $PROFILE_NIX_FILE'? It would get them on
|
|
# their way less disruptively, but a counter-argument is that they won't
|
|
# immediately notice if something didn't get set up right?
|
|
reminder "Nix won't work in active shell sessions until you restart them."
|
|
}
|
|
|
|
cert_in_store() {
|
|
# in a subshell
|
|
# - change into the cert-file dir
|
|
# - get the phyiscal pwd
|
|
# and test if this path is in the Nix store
|
|
[[ "$(cd -- "$(dirname "$NIX_SSL_CERT_FILE")" && exec pwd -P)" == "$NIX_ROOT/store/"* ]]
|
|
}
|
|
|
|
setup_default_profile() {
|
|
task "Setting up the default profile"
|
|
_sudo "to install a bootstrapping Nix in to the default profile" \
|
|
HOME="$ROOT_HOME" "$NIX_INSTALLED_NIX/bin/nix-env" -i "$NIX_INSTALLED_NIX"
|
|
|
|
if [ -z "${NIX_SSL_CERT_FILE:-}" ] || ! [ -f "${NIX_SSL_CERT_FILE:-}" ] || cert_in_store; then
|
|
_sudo "to install a bootstrapping SSL certificate just for Nix in to the default profile" \
|
|
HOME="$ROOT_HOME" "$NIX_INSTALLED_NIX/bin/nix-env" -i "$NIX_INSTALLED_CACERT"
|
|
export NIX_SSL_CERT_FILE=/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt
|
|
fi
|
|
|
|
if [ -z "${NIX_INSTALLER_NO_CHANNEL_ADD:-}" ]; then
|
|
# Have to explicitly pass NIX_SSL_CERT_FILE as part of the sudo call,
|
|
# otherwise it will be lost in environments where sudo doesn't pass
|
|
# all the environment variables by default.
|
|
if ! _sudo "to update the default channel in the default profile" \
|
|
HOME="$ROOT_HOME" NIX_SSL_CERT_FILE="$NIX_SSL_CERT_FILE" "$NIX_INSTALLED_NIX/bin/nix-channel" --update nixpkgs; then
|
|
reminder <<EOF
|
|
I had trouble fetching the nixpkgs channel (are you offline?)
|
|
To try again later, run: sudo -i nix-channel --update nixpkgs
|
|
EOF
|
|
fi
|
|
fi
|
|
}
|
|
|
|
|
|
place_nix_configuration() {
|
|
cat <<EOF > "$SCRATCH/nix.conf"
|
|
$NIX_EXTRA_CONF
|
|
build-users-group = $NIX_BUILD_GROUP_NAME
|
|
EOF
|
|
_sudo "to place the default nix daemon configuration (part 2)" \
|
|
install -m 0664 "$SCRATCH/nix.conf" /etc/nix/nix.conf
|
|
}
|
|
|
|
main() {
|
|
# TODO: I've moved this out of validate_starting_assumptions so we
|
|
# can fail faster in this case. Sourcing install-darwin... now runs
|
|
# `touch /` to detect Read-only root, but it could update times on
|
|
# pre-Catalina macOS if run as root user.
|
|
if [ "$EUID" -eq 0 ]; then
|
|
failure <<EOF
|
|
Please do not run this script with root privileges. I will call sudo
|
|
when I need to.
|
|
EOF
|
|
fi
|
|
|
|
if [ "$(uname -s)" = "Darwin" ]; then
|
|
# shellcheck source=./install-darwin-multi-user.sh
|
|
. "$EXTRACTED_NIX_PATH/install-darwin-multi-user.sh"
|
|
elif [ "$(uname -s)" = "Linux" ]; then
|
|
# shellcheck source=./install-systemd-multi-user.sh
|
|
. "$EXTRACTED_NIX_PATH/install-systemd-multi-user.sh" # most of this works on non-systemd distros also
|
|
else
|
|
failure "Sorry, I don't know what to do on $(uname)"
|
|
fi
|
|
|
|
welcome_to_nix
|
|
chat_about_sudo
|
|
|
|
cure_artifacts
|
|
# TODO: there's a tension between cure and validate. I moved the
|
|
# the sudo/root check out of validate to the head of this func.
|
|
# Cure is *intended* to subsume the validate-and-abort approach,
|
|
# so it may eventually obsolete it.
|
|
validate_starting_assumptions
|
|
|
|
setup_report
|
|
|
|
if ! ui_confirm "Ready to continue?"; then
|
|
ok "Alright, no changes have been made :)"
|
|
get_help
|
|
trap finish_cleanup EXIT
|
|
exit 1
|
|
fi
|
|
|
|
poly_prepare_to_install
|
|
|
|
create_build_group
|
|
create_build_users
|
|
create_directories
|
|
place_channel_configuration
|
|
install_from_extracted_nix
|
|
|
|
configure_shell_profile
|
|
|
|
set +eu
|
|
# shellcheck disable=SC1091
|
|
. /etc/profile
|
|
set -eu
|
|
|
|
setup_default_profile
|
|
place_nix_configuration
|
|
|
|
poly_configure_nix_daemon_service
|
|
|
|
trap finish_success EXIT
|
|
}
|
|
|
|
# set an empty initial arg for bare invocations in case we need to
|
|
# disambiguate someone directly invoking this later.
|
|
if [ "${#@}" = 0 ]; then
|
|
set ""
|
|
fi
|
|
|
|
# ACTION for override
|
|
case "${1-}" in
|
|
# uninstall)
|
|
# shift
|
|
# uninstall "$@";;
|
|
# install == same as the no-arg condition for now (but, explicit)
|
|
""|install)
|
|
main;;
|
|
*) # holding space for future options (like uninstall + install?)
|
|
failure "install-multi-user: invalid argument";;
|
|
esac
|