forked from NixOS/nix
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
install: configure and bootstrap synthetic.conf on darwin
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.
- Loading branch information
Showing
3 changed files
with
177 additions
and
37 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| #!/bin/sh | ||
| set -e | ||
|
|
||
| root_disks() { | ||
| diskutil list -plist / | ||
| } | ||
|
|
||
| apfs_volumes_for() { | ||
| disk=$1 | ||
| diskutil apfs list -plist "$disk" | ||
| } | ||
|
|
||
| disk_identifier() { | ||
| xpath "/plist/dict/key[text()='WholeDisks']/following-sibling::array[1]/string/text()" 2>/dev/null | ||
| } | ||
|
|
||
| volume_get() { | ||
| key=$1 i=$2 | ||
| xpath "/plist/dict/array/dict/key[text()='Volumes']/following-sibling::array/dict[$i]/key[text()='$key']/following-sibling::string[1]/text()" 2> /dev/null | ||
| } | ||
|
|
||
| find_nix_volume() { | ||
| disk=$1 | ||
| i=1 | ||
| volumes=$(apfs_volumes_for "$disk") | ||
| while true; do | ||
| name=$(echo "$volumes" | volume_get "Name" "$i") | ||
| if [ -z "$name" ]; then | ||
| break | ||
| fi | ||
| case "$name" in | ||
| [Nn]ix*) | ||
| echo "$name" | ||
| break | ||
| ;; | ||
| esac | ||
| i=$((i+1)) | ||
| done | ||
| } | ||
|
|
||
| test_fstab() { | ||
| grep -q "/nix" /etc/fstab 2>/dev/null | ||
| } | ||
|
|
||
| test_synthetic_conf() { | ||
| grep -q "^nix" /etc/synthetic.conf 2>/dev/null | ||
| } | ||
|
|
||
| test_nix() { | ||
| test -d "/nix" | ||
| } | ||
|
|
||
| main() { | ||
| ( | ||
| echo "" | ||
| echo " ------------------------------------------------------------------ " | ||
| echo " | This installer will create a volume for the nix store and |" | ||
| echo " | configure it to mount at /nix. Follow these steps to uninstall. |" | ||
| echo " ------------------------------------------------------------------ " | ||
| echo "" | ||
| echo " 1. Remove the entry from fstab using 'sudo vifs'" | ||
| echo " 2. Destroy the data volume using 'diskutil apfs deleteVolume'" | ||
| echo " 3. Delete /etc/synthetic.conf" | ||
| echo "" | ||
| ) >&2 | ||
|
|
||
| if [ -L "/nix" ]; then | ||
| echo "error: /nix is a symlink, please remove it or edit synthetic.conf (requires reboot)" >&2 | ||
| echo " /nix -> $(readlink "/nix")" >&2 | ||
| exit 2 | ||
| fi | ||
|
|
||
| if ! test_synthetic_conf; then | ||
| echo "Configuring /etc/synthetic.conf..." >&2 | ||
| echo nix | sudo tee /etc/synthetic.conf | ||
| /System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util -B | ||
| fi | ||
|
|
||
| if ! test_nix; then | ||
| echo "Creating mountpoint for /nix..." >&2 | ||
| sudo mkdir /nix | ||
| fi | ||
|
|
||
| disk=$(root_disks | disk_identifier) | ||
| volume=$(find_nix_volume "$disk") | ||
| if [ -z "$volume" ]; then | ||
| echo "Creating a Nix Store volume..." >&2 | ||
| sudo diskutil apfs addVolume "$disk" APFS 'Nix Store' -mountpoint /nix | ||
| volume="Nix Store" | ||
| else | ||
| echo "Using existing '$volume' volume" >&2 | ||
| fi | ||
|
|
||
| if ! test_fstab; then | ||
| echo "Configuring /etc/fstab..." >&2 | ||
| label=$(echo "$volume" | sed 's/ /\\040/g') | ||
| printf "\$a\nLABEL=%s /nix apfs rw\n.\nwq\n" "$label" | EDITOR=ed sudo vifs | ||
| fi | ||
|
|
||
| echo "The following options can be enabled to disable spotlight indexing" >&2 | ||
| echo "of the volume, which might be desirable." >&2 | ||
| echo "" >&2 | ||
| echo " $ mdutil -i off /nix" >&2 | ||
| echo "" >&2 | ||
| } | ||
|
|
||
| main "$@" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters