My dotfiles
bladee.bsky.social
1#!/usr/bin/env sh
2
3# bwrap-preset-renpy
4#
5# Run an executable in a Bubblewrap sandbox set up for Ren'Py games. The saves
6# directory will be in '$XDG_CONFIG_DIR/renpy' or '$HOME/.config/renpy' instead
7# of the normal '$HOME/.renpy'.
8
9set -eu
10
11# Set script title for error messages.
12SCRIPT_TITLE="Run in Bubblewrap (Ren'Py)"
13
14# Notify the user of an error and exit.
15notify_and_exit () {
16 # Make sure enough arguments were given.
17 if [ "$#" -ne 2 ]; then
18 printf "Error: notify_and_exit() called with '%i' arguments\n" "$#"
19 exit 127
20 fi
21
22 # Name the arguments.
23 error_msg="$1"
24 exit_code="$2"
25
26 # Either print to stdout or send a notification.
27 if [ "$TERM" = "dumb" ]; then
28 notify-send --urgency=normal --icon=error "$SCRIPT_TITLE" "$error_msg"
29 else
30 printf "%s: %s\n" "$SCRIPT_TITLE" "$error_msg"
31 fi
32
33 # Exit with the error code.
34 exit "$exit_code"
35}
36
37# Only one command can be run.
38[ "$#" -ne 1 ] && notify_and_exit "Only one command can be run with this script" 1
39
40
41# Make sure Bubblewrap is installed.
42if ! command -v bwrap > /dev/null 2>&1; then
43 notify_and_exit "Could not find executable \`bwrap\`" 1
44fi
45
46# Set the Ren'Py saves directory.
47if [ ! -z "$\{XDG_CONFIG_HOME+x\}" ]; then
48 RENPY_SAVE_DIR="$XDG_CONFIG_HOME/renpy"
49else
50 RENPY_SAVE_DIR="$HOME/.config/renpy"
51fi
52
53# Create the Ren'Py saves directory if it doesn't exist.
54[ ! -d "$RENPY_SAVE_DIR" ] && mkdir -p "$RENPY_SAVE_DIR"
55
56# Get the full path of the file.
57executable=$(realpath "$1")
58
59# Get the directory the file is contained in so it can be mounted int the
60# sandbox.
61executable_dir=$(dirname "$executable")
62
63# Make sure the file is executable.
64[ ! -x "$executable" ] && notify_and_exit "File \`$executable\` is not executable" 1
65
66# Run the specified command in Bubblewrap. Unshare all namespaces, and bind the
67# working directory and Ren'Py saves directory.
68exec bwrap \
69 --unshare-all \
70 --die-with-parent \
71 --new-session \
72 --unsetenv RENPY_PATH_TO_SAVES \
73 --ro-bind "/" "/" \
74 --dev "/dev" \
75 --dev-bind "/dev/dri" "/dev/dri" \
76 --proc "/proc" \
77 --tmpfs "$HOME" \
78 --bind "$XDG_CONFIG_HOME/MangoHud" "$XDG_CONFIG_HOME/MangoHud" \
79 --bind "$executable_dir" "$executable_dir" \
80 --bind "$RENPY_SAVE_DIR" "$HOME/.renpy" \
81 "$executable"
82