forked from lix-project/lix
fix nixbld user name/uid for macOS
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8127094f76
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46
scripts/bigsur-nixbld-user-migration.sh
Executable file
46
scripts/bigsur-nixbld-user-migration.sh
Executable file
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@ -0,0 +1,46 @@
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#!/usr/bin/env bash
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((NEW_NIX_FIRST_BUILD_UID=301))
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id_available(){
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dscl . list /Users UniqueID | grep -E '\b'$1'\b' >/dev/null
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}
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change_nixbld_names_and_ids(){
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local name uid next_id
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((next_id=NEW_NIX_FIRST_BUILD_UID))
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echo "Attempting to migrate nixbld users."
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echo "Each user should change from nixbld# to _nixbld#"
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echo "and their IDs relocated to $next_id+"
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while read -r name uid; do
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echo " Checking $name (uid: $uid)"
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# iterate for a clean ID
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while id_available "$next_id"; do
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((next_id++))
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if ((next_id >= 400)); then
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echo "We've hit UID 400 without placing all of your users :("
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echo "You should use the commands in this script as a starting"
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echo "point to review your UID-space and manually move the"
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echo "remaining users (or delete them, if you don't need them)."
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exit 1
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fi
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done
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if [[ $name == _* ]]; then
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echo " It looks like $name has already been renamed--skipping."
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else
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# first 3 are cleanup, it's OK if they aren't here
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sudo dscl . delete /Users/$name dsAttrTypeNative:_writers_passwd &>/dev/null || true
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sudo dscl . change /Users/$name NFSHomeDirectory "/private/var/empty 1" "/var/empty" &>/dev/null || true
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# remove existing user from group
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sudo dseditgroup -o edit -t user -d $name nixbld || true
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sudo dscl . change /Users/$name UniqueID $uid $next_id
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sudo dscl . change /Users/$name RecordName $name _$name
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# add renamed user to group
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sudo dseditgroup -o edit -t user -a _$name nixbld
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echo " $name migrated to _$name (uid: $next_id)"
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fi
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done < <(dscl . list /Users UniqueID | grep nixbld | sort -n -k2)
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}
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change_nixbld_names_and_ids
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@ -4,6 +4,8 @@ set -eu
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set -o pipefail
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readonly PLIST_DEST=/Library/LaunchDaemons/org.nixos.nix-daemon.plist
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NIX_FIRST_BUILD_UID="301"
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NIX_BUILD_USER_NAME_TEMPLATE="_nixbld%d"
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dsclattr() {
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/usr/bin/dscl . -read "$1" \
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@ -25,7 +25,9 @@ readonly RED='\033[31m'
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readonly NIX_USER_COUNT=${NIX_USER_COUNT:-32}
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readonly NIX_BUILD_GROUP_ID="30000"
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readonly NIX_BUILD_GROUP_NAME="nixbld"
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readonly NIX_FIRST_BUILD_UID="30001"
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# darwin installer needs to override these
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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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@ -104,7 +106,7 @@ EOF
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}
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nix_user_for_core() {
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printf "nixbld%d" "$1"
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printf "$NIX_BUILD_USER_NAME_TEMPLATE" "$1"
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}
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nix_uid_for_core() {
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