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Merge pull request #4532 from abathur/macos_nixbld_ids

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fix nixbld user name/uid for macOS/darwin
This commit is contained in:
Domen Kožar 2021-03-25 10:35:56 +01:00 committed by GitHub
commit dc6a8f1548
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3 changed files with 52 additions and 2 deletions
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46
scripts/bigsur-nixbld-user-migration.sh Executable file
View File

@ -0,0 +1,46 @@
#!/usr/bin/env bash
((NEW_NIX_FIRST_BUILD_UID=301))
id_available(){
dscl . list /Users UniqueID | grep -E '\b'$1'\b' >/dev/null
}
change_nixbld_names_and_ids(){
local name uid next_id
((next_id=NEW_NIX_FIRST_BUILD_UID))
echo "Attempting to migrate nixbld users."
echo "Each user should change from nixbld# to _nixbld#"
echo "and their IDs relocated to $next_id+"
while read -r name uid; do
echo " Checking $name (uid: $uid)"
# iterate for a clean ID
while id_available "$next_id"; do
((next_id++))
if ((next_id >= 400)); then
echo "We've hit UID 400 without placing all of your users :("
echo "You should use the commands in this script as a starting"
echo "point to review your UID-space and manually move the"
echo "remaining users (or delete them, if you don't need them)."
exit 1
fi
done
if [[ $name == _* ]]; then
echo " It looks like $name has already been renamed--skipping."
else
# first 3 are cleanup, it's OK if they aren't here
sudo dscl . delete /Users/$name dsAttrTypeNative:_writers_passwd &>/dev/null || true
sudo dscl . change /Users/$name NFSHomeDirectory "/private/var/empty 1" "/var/empty" &>/dev/null || true
# remove existing user from group
sudo dseditgroup -o edit -t user -d $name nixbld || true
sudo dscl . change /Users/$name UniqueID $uid $next_id
sudo dscl . change /Users/$name RecordName $name _$name
# add renamed user to group
sudo dseditgroup -o edit -t user -a _$name nixbld
echo " $name migrated to _$name (uid: $next_id)"
fi
done < <(dscl . list /Users UniqueID | grep nixbld | sort -n -k2)
}
change_nixbld_names_and_ids

2
scripts/install-darwin-multi-user.sh
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@ -4,6 +4,8 @@ set -eu
set -o pipefail
readonly PLIST_DEST=/Library/LaunchDaemons/org.nixos.nix-daemon.plist
NIX_FIRST_BUILD_UID="301"
NIX_BUILD_USER_NAME_TEMPLATE="_nixbld%d"
dsclattr() {
/usr/bin/dscl . -read "$1" \

6
scripts/install-multi-user.sh
View File

@ -25,7 +25,9 @@ readonly RED='\033[31m'
readonly NIX_USER_COUNT=${NIX_USER_COUNT:-32}
readonly NIX_BUILD_GROUP_ID="30000"
readonly NIX_BUILD_GROUP_NAME="nixbld"
readonly NIX_FIRST_BUILD_UID="30001"
# darwin installer needs to override these
NIX_FIRST_BUILD_UID="30001"
NIX_BUILD_USER_NAME_TEMPLATE="nixbld%d"
# Please don't change this. We don't support it, because the
# default shell profile that comes with Nix doesn't support it.
readonly NIX_ROOT="/nix"
@ -104,7 +106,7 @@ EOF
}
nix_user_for_core() {
printf "nixbld%d" "$1"
printf "$NIX_BUILD_USER_NAME_TEMPLATE" "$1"
}
nix_uid_for_core() {