mirror of
https://github.com/NixOS/nix
synced 2024-09-19 10:50:24 -04:00
37 lines
1.2 KiB
Bash
37 lines
1.2 KiB
Bash
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#!/usr/bin/env bash
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((NEW_NIX_FIRST_BUILD_UID=331))
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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 _nixbld# user should have its UID moved 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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# first 2 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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sudo dscl . change "/Users/$name" UniqueID "$uid" "$next_id"
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echo " $name migrated to uid: $next_id"
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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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