#!/usr/bin/env bash
# On Fedora $SNAP is under /var and there is some magic to map it to /snap.
# We need to handle that case and reset $SNAP
SNAP=$(echo "$SNAP" | sed -e "s|/var/lib/snapd||g")
#
# Exports are based on https://github.com/snapcore/snapcraft/blob/master/extensions/desktop/common/desktop-exports
#
# ensure_dir_exists calls `mkdir -p` if the given path is not a directory.
# This speeds up execution time by avoiding unnecessary calls to mkdir.
#
# Usage: ensure_dir_exists <path> [<mkdir-options>]...
#
function ensure_dir_exists() {
[ -d "$1" ] || mkdir -p "$@"
}
declare -A PIDS
function async_exec() {
"$@" &
PIDS[$!]=$*
}
function wait_for_async_execs() {
for pid in "${!PIDS[@]}"
do
wait "$pid" && continue || echo "ERROR: ${PIDS[$pid]} exited abnormally with status $?"
done
}
function prepend_dir() {
local -n var="$1"
local dir="$2"
# We can't check if the dir exists when the dir contains variables
if [[ "$dir" == *"\$"* || -d "$dir" ]]; then
export "${!var}=${dir}${var:+:$var}"
fi
}
function append_dir() {
local -n var="$1"
local dir="$2"
# We can't check if the dir exists when the dir contains variables
if [[ "$dir" == *"\$"* || -d "$dir" ]]; then
export "${!var}=${var:+$var:}${dir}"
fi
}
function copy_env_variable() {
local -n var="$1"
if [[ "+$var" ]]; then
export "${!var}_VSCODE_SNAP_ORIG=${var}"
else
export "${!var}_VSCODE_SNAP_ORIG=''"
fi
}
# shellcheck source=/dev/null
source "$SNAP_USER_DATA/.last_revision" 2>/dev/null || true
if [ "$SNAP_DESKTOP_LAST_REVISION" = "$SNAP_VERSION" ]; then
needs_update=false
else
needs_update=true
fi
# Set $REALHOME to the users real home directory
REALHOME=$(getent passwd $UID | cut -d ':' -f 6)
# Set config folder to local path
ensure_dir_exists "$SNAP_USER_DATA/.config"
chmod 700 "$SNAP_USER_DATA/.config"
if [ "$SNAP_ARCH" == "amd64" ]; then
ARCH="x86_64-linux-gnu"
elif [ "$SNAP_ARCH" == "armhf" ]; then
ARCH="arm-linux-gnueabihf"
elif [ "$SNAP_ARCH" == "arm64" ]; then
ARCH="aarch64-linux-gnu"
else
ARCH="$SNAP_ARCH-linux-gnu"
fi
export SNAP_LAUNCHER_ARCH_TRIPLET="$ARCH"
function is_subpath() {
dir="$(realpath "$1")"
parent="$(realpath "$2")"
[ "${dir##"${parent}"/}" != "${dir}" ] && return 0 || return 1
}
function can_open_file() {
[ -f "$1" ] && [ -r "$1" ]
}
# Preserve system variables that get modified below
copy_env_variable XDG_CONFIG_DIRS
copy_env_variable XDG_DATA_DIRS
copy_env_variable XDG_DATA_HOME
copy_env_variable LOCPATH
copy_env_variable GIO_MODULE_DIR
copy_env_variable GSETTINGS_SCHEMA_DIR
copy_env_variable GDK_PIXBUF_MODULE_FILE
copy_env_variable GDK_PIXBUF_MODULEDIR
copy_env_variable GDK_BACKEND
copy_env_variable GTK_PATH
copy_env_variable GTK_EXE_PREFIX
copy_env_variable GTK_IM_MODULE_FILE
# XDG Config
prepend_dir XDG_CONFIG_DIRS "$SNAP/etc/xdg"
# Define snaps' own data dir
prepend_dir XDG_DATA_DIRS "$SNAP/usr/share"
prepend_dir XDG_DATA_DIRS "$SNAP/share"
prepend_dir XDG_DATA_DIRS "$SNAP/data-dir"
prepend_dir XDG_DATA_DIRS "$SNAP_USER_DATA"
# Set XDG_DATA_HOME to local path
export XDG_DATA_HOME="$SNAP_USER_DATA/.local/share"
ensure_dir_exists "$XDG_DATA_HOME"
# Workaround for GLib < 2.53.2 not searching for schemas in $XDG_DATA_HOME:
# https://bugzilla.gnome.org/show_bug.cgi?id=741335
prepend_dir XDG_DATA_DIRS "$XDG_DATA_HOME"
# Set cache folder to local path
if [[ -d "$SNAP_USER_DATA/.cache" && ! -e "$SNAP_USER_COMMON/.cache" ]]; then
# the .cache directory used to be stored under $SNAP_USER_DATA, migrate it
mv "$SNAP_USER_DATA/.cache" "$SNAP_USER_COMMON/"
fi
ensure_dir_exists "$SNAP_USER_COMMON/.cache"
# Create $XDG_RUNTIME_DIR if not exists (to be removed when LP: #1656340 is fixed)
# shellcheck disable=SC2174
ensure_dir_exists "$XDG_RUNTIME_DIR" -m 700
# Ensure the app finds locale definitions (requires locales-all to be installed)
append_dir LOCPATH "$SNAP/usr/lib/locale"
# If detect wayland server socket, then set environment so applications prefer
# wayland, and setup compat symlink (until we use user mounts. Remember,
# XDG_RUNTIME_DIR is /run/user/<uid>/snap.$SNAP so look in the parent directory
# for the socket. For details:
# https://forum.snapcraft.io/t/wayland-dconf-and-xdg-runtime-dir/186/10
# Applications that don't support wayland natively may define DISABLE_WAYLAND
# (to any non-empty value) to skip that logic entirely.
wayland_available=false
if [[ -n "$XDG_RUNTIME_DIR" && -z "$DISABLE_WAYLAND" ]]; then
wdisplay="wayland-0"
if [ -n "$WAYLAND_DISPLAY" ]; then
wdisplay="$WAYLAND_DISPLAY"
fi
wayland_sockpath="$XDG_RUNTIME_DIR/../$wdisplay"
wayland_snappath="$XDG_RUNTIME_DIR/$wdisplay"
if [ -S "$wayland_sockpath" ]; then
# if running under wayland, use it
#export WAYLAND_DEBUG=1
# shellcheck disable=SC2034
wayland_available=true
# create the compat symlink for now
if [ ! -e "$wayland_snappath" ]; then
ln -s "$wayland_sockpath" "$wayland_snappath"
fi
fi
fi
# Keep an array of data dirs, for looping through them
IFS=':' read -r -a data_dirs_array <<< "$XDG_DATA_DIRS"
# Font Config
export FONTCONFIG_PATH="/etc/fonts"
export FONTCONFIG_FILE="/etc/fonts/fonts.conf"
if [ "$needs_update" = true ]; then
rm -rf "$XDG_DATA_HOME"/fonts
if [ -d "$SNAP_REAL_HOME/.local/share/fonts" ]; then
ln -s "$SNAP_REAL_HOME/.local/share/fonts" "$XDG_DATA_HOME/fonts"
fi
fi
# Build mime.cache needed for gtk and qt icon
# TODO(deepak1556): Re-enable this once we move to core22
# Refs https://github.com/microsoft/vscode/issues/230454#issuecomment-2418352959
if [ "$needs_update" = true ]; then
rm -rf "$XDG_DATA_HOME/mime"
# if [ ! -f "$SNAP/usr/share/mime/mime.cache" ]; then
# if command -v $SNAP/usr/bin/update-mime-database >/dev/null; then
# cp --preserve=timestamps -dR "$SNAP/usr/share/mime" "$XDG_DATA_HOME"
# async_exec $SNAP/usr/bin/update-mime-database "$XDG_DATA_HOME/mime"
# fi
# fi
fi
# Gio modules and cache (including gsettings module)
export GIO_MODULE_DIR="$SNAP_USER_COMMON/.cache/gio-modules"
function compile_giomodules {
if [ -f "$1/glib-2.0/gio-querymodules" ]; then
rm -rf "$GIO_MODULE_DIR"
ensure_dir_exists "$GIO_MODULE_DIR"
ln -s "$SNAP"/usr/lib/"$ARCH"/gio/modules/*.so "$GIO_MODULE_DIR"
"$1/glib-2.0/gio-querymodules" "$GIO_MODULE_DIR"
fi
}
if [ "$needs_update" = true ]; then
async_exec compile_giomodules "/snap/core20/current/usr/lib/$ARCH"
fi
# Setup compiled gsettings schema
export GSETTINGS_SCHEMA_DIR="$SNAP_USER_DATA/.local/share/glib-2.0/schemas"
function compile_schemas {
if [ -f "$1" ]; then
rm -rf "$GSETTINGS_SCHEMA_DIR"
ensure_dir_exists "$GSETTINGS_SCHEMA_DIR"
for ((i = 0; i < ${#data_dirs_array[@]}; i++)); do
schema_dir="${data_dirs_array[$i]}/glib-2.0/schemas"
if [ -f "$schema_dir/gschemas.compiled" ]; then
# This directory already has compiled schemas
continue
fi
if [ -n "$(ls -A "$schema_dir"/*.xml 2>/dev/null)" ]; then
ln -s "$schema_dir"/*.xml "$GSETTINGS_SCHEMA_DIR"
fi
if [ -n "$(ls -A "$schema_dir"/*.override 2>/dev/null)" ]; then
ln -s "$schema_dir"/*.override "$GSETTINGS_SCHEMA_DIR"
fi
done
# Only compile schemas if we copied anything
if [ -n "$(ls -A "$GSETTINGS_SCHEMA_DIR"/*.xml "$GSETTINGS_SCHEMA_DIR"/*.override 2>/dev/null)" ]; then
"$1" "$GSETTINGS_SCHEMA_DIR"
fi
fi
}
if [ "$needs_update" = true ]; then
async_exec compile_schemas "/snap/core20/current/usr/lib/$ARCH/glib-2.0/glib-compile-schemas"
fi
# Gdk-pixbuf loaders
export GDK_PIXBUF_MODULE_FILE="$SNAP_USER_COMMON/.cache/gdk-pixbuf-loaders.cache"
export GDK_PIXBUF_MODULEDIR="$SNAP/usr/lib/$ARCH/gdk-pixbuf-2.0/2.10.0/loaders"
if [ "$needs_update" = true ] || [ ! -f "$GDK_PIXBUF_MODULE_FILE" ]; then
rm -f "$GDK_PIXBUF_MODULE_FILE"
if [ -f "$SNAP/usr/lib/$ARCH/gdk-pixbuf-2.0/gdk-pixbuf-query-loaders" ]; then
async_exec "$SNAP/usr/lib/$ARCH/gdk-pixbuf-2.0/gdk-pixbuf-query-loaders" > "$GDK_PIXBUF_MODULE_FILE"
fi
fi
# shellcheck disable=SC2154
if [ "$wayland_available" = true ]; then
export GDK_BACKEND="wayland"
fi
append_dir GTK_PATH "$SNAP/usr/lib/$ARCH/gtk-3.0"
append_dir GTK_PATH "$SNAP/usr/lib/gtk-3.0"
# We don't have gtk libraries in this path but
# enforcing this environment variable will disallow
# gtk binaries like `gtk-query-immodules` to not search
# in system default library paths.
# Based on https://gitlab.gnome.org/GNOME/gtk/-/blob/main/gtk/gtkmodules.c#L104-136
export GTK_EXE_PREFIX="$SNAP/usr"
# ibus and fcitx integration
GTK_IM_MODULE_DIR="$SNAP_USER_COMMON/.cache/immodules"
export GTK_IM_MODULE_FILE="$GTK_IM_MODULE_DIR/immodules.cache"
# shellcheck disable=SC2154
if [ "$needs_update" = true ]; then
rm -rf "$GTK_IM_MODULE_DIR"
ensure_dir_exists "$GTK_IM_MODULE_DIR"
ln -s "$SNAP"/usr/lib/"$ARCH"/gtk-3.0/3.0.0/immodules/*.so "$GTK_IM_MODULE_DIR"
async_exec "$SNAP/usr/lib/$ARCH/libgtk-3-0/gtk-query-immodules-3.0" > "$GTK_IM_MODULE_FILE"
fi
# shellcheck disable=SC2154
[ "$needs_update" = true ] && echo "SNAP_DESKTOP_LAST_REVISION=$SNAP_VERSION" > "$SNAP_USER_DATA/.last_revision"
wait_for_async_execs
exec "$@"
