mirror of
https://github.com/NixOS/nix.git
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1c56f18a81
Starting macOS 10.15 /nix can't be creasted directly anymore due to the
readonly filesystem, but synthetic.conf was introduced to enable
creating mountpoints or symlinks for special usecases like package
managers.
(cherry picked from commit 0726ad5825)
Signed-off-by: Domen Kožar <domen@dev.si>
107 lines
2.9 KiB
Bash
Executable file
107 lines
2.9 KiB
Bash
Executable file
#!/bin/sh
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set -e
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root_disks() {
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diskutil list -plist /
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}
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apfs_volumes_for() {
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disk=$1
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diskutil apfs list -plist "$disk"
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}
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disk_identifier() {
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xpath "/plist/dict/key[text()='WholeDisks']/following-sibling::array[1]/string/text()" 2>/dev/null
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}
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volume_get() {
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key=$1 i=$2
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xpath "/plist/dict/array/dict/key[text()='Volumes']/following-sibling::array/dict[$i]/key[text()='$key']/following-sibling::string[1]/text()" 2> /dev/null
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}
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find_nix_volume() {
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disk=$1
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i=1
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volumes=$(apfs_volumes_for "$disk")
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while true; do
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name=$(echo "$volumes" | volume_get "Name" "$i")
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if [ -z "$name" ]; then
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break
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fi
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case "$name" in
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[Nn]ix*)
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echo "$name"
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break
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;;
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esac
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i=$((i+1))
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done
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}
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test_fstab() {
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grep -q "/nix" /etc/fstab 2>/dev/null
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}
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test_synthetic_conf() {
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grep -q "^nix" /etc/synthetic.conf 2>/dev/null
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}
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test_nix() {
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test -d "/nix"
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}
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main() {
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(
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echo ""
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echo " ------------------------------------------------------------------ "
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echo " | This installer will create a volume for the nix store and |"
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echo " | configure it to mount at /nix. Follow these steps to uninstall. |"
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echo " ------------------------------------------------------------------ "
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echo ""
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echo " 1. Remove the entry from fstab using 'sudo vifs'"
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echo " 2. Destroy the data volume using 'diskutil apfs deleteVolume'"
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echo " 3. Delete /etc/synthetic.conf"
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echo ""
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) >&2
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if [ -L "/nix" ]; then
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echo "error: /nix is a symlink, please remove it or edit synthetic.conf (requires reboot)" >&2
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echo " /nix -> $(readlink "/nix")" >&2
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exit 2
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fi
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if ! test_synthetic_conf; then
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echo "Configuring /etc/synthetic.conf..." >&2
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echo nix | sudo tee /etc/synthetic.conf
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/System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util -B
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fi
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if ! test_nix; then
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echo "Creating mountpoint for /nix..." >&2
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sudo mkdir /nix
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fi
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disk=$(root_disks | disk_identifier)
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volume=$(find_nix_volume "$disk")
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if [ -z "$volume" ]; then
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echo "Creating a Nix Store volume..." >&2
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sudo diskutil apfs addVolume "$disk" APFS 'Nix Store' -mountpoint /nix
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volume="Nix Store"
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else
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echo "Using existing '$volume' volume" >&2
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fi
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if ! test_fstab; then
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echo "Configuring /etc/fstab..." >&2
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label=$(echo "$volume" | sed 's/ /\\040/g')
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printf "\$a\nLABEL=%s /nix apfs rw\n.\nwq\n" "$label" | EDITOR=ed sudo vifs
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fi
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echo "The following options can be enabled to disable spotlight indexing" >&2
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echo "of the volume, which might be desirable." >&2
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echo "" >&2
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echo " $ mdutil -i off /nix" >&2
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echo "" >&2
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}
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main "$@"
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