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#!/usr/bin/env bash
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# SPDX-FileCopyrightText: 2019-2025 Connor McLaughlin <[email protected]>
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# SPDX-License-Identifier: CC-BY-NC-ND-4.0
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SCRIPTDIR=$(dirname "${BASH_SOURCE[0]}")
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function retry_command {
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  # Package servers tend to be unreliable at times..
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  # Retry a bunch of times.
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  local RETRIES=10
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  for i in $(seq 1 "$RETRIES"); do
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    "$@" && break
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    if [ "$i" == "$RETRIES" ]; then
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      echo "Command \"$@\" failed after ${RETRIES} retries."
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      exit 1
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    fi
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  done
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}
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if [ "$#" -ne 4 ]; then
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    echo "Syntax: $0 <path to duckstation directory> <path to build directory> <deps prefix> <output name>"
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    exit 1
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fi
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ROOTDIR=$1
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BUILDDIR=$2
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DEPSDIR=$3
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ASSETNAME=$4
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BINARY=duckstation-qt
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APPDIRNAME=DuckStation.AppDir
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STRIP=strip
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declare -a MANUAL_LIBS=(
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	"libz.so.1"
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	"libavcodec.so.61"
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	"libavformat.so.61"
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	"libavutil.so.59"
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	"libswscale.so.8"
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	"libswresample.so.5"
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	"libdiscord-rpc.so"
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	"libharfbuzz.so"
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	"libfreetype.so.6"
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	"libshaderc_ds.so"
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	"libspirv-cross-c-shared.so.0"
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)
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declare -a MANUAL_QT_LIBS=(
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	"libQt6WaylandEglClientHwIntegration.so.6"
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)
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declare -a MANUAL_QT_PLUGINS=(
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	"wayland-decoration-client"
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	"wayland-graphics-integration-client"
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	"wayland-shell-integration"
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)
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declare -a REMOVE_LIBS=(
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	'libwayland-client.so*'
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	'libwayland-cursor.so*'
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	'libwayland-egl.so*'
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)
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set -e
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LINUXDEPLOY=./linuxdeploy-x86_64
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LINUXDEPLOY_PLUGIN_QT=./linuxdeploy-plugin-qt-x86_64
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APPIMAGETOOL=./appimagetool-x86_64
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APPIMAGERUNTIME=./runtime-x86_64
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PATCHELF=patchelf
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if [ ! -f "$LINUXDEPLOY" ]; then
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	retry_command wget -O "$LINUXDEPLOY" https://github.com/stenzek/duckstation-ext-qt-minimal/releases/download/linux/linuxdeploy-x86_64.AppImage
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	chmod +x "$LINUXDEPLOY"
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fi
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if [ ! -f "$LINUXDEPLOY_PLUGIN_QT" ]; then
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	retry_command wget -O "$LINUXDEPLOY_PLUGIN_QT" https://github.com/stenzek/duckstation-ext-qt-minimal/releases/download/linux/linuxdeploy-plugin-qt-x86_64.AppImage
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	chmod +x "$LINUXDEPLOY_PLUGIN_QT"
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fi
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if [ ! -f "$APPIMAGETOOL" ]; then
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	retry_command wget -O "$APPIMAGETOOL" https://github.com/stenzek/duckstation-ext-qt-minimal/releases/download/linux/appimagetool-x86_64.AppImage
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	chmod +x "$APPIMAGETOOL"
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fi
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if [ ! -f "$APPIMAGERUNTIME" ]; then
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	retry_command wget -O "$APPIMAGERUNTIME" https://github.com/stenzek/type2-runtime/releases/download/continuous/runtime-x86_64
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fi
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OUTDIR=$(realpath "./$APPDIRNAME")
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rm -fr "$OUTDIR"
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echo "Locating extra libraries..."
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EXTRA_LIBS_ARGS=()
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for lib in "${MANUAL_LIBS[@]}"; do
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	srcpath=$(find "$DEPSDIR" -name "$lib")
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	if [ ! -f "$srcpath" ]; then
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		echo "Missinge extra library $lib. Exiting."
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		exit 1
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	fi
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	echo "Found $lib at $srcpath."
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	EXTRA_LIBS_ARGS+=("--library=$srcpath")
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done
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# Why the nastyness? linuxdeploy strips our main binary, and there's no option to turn it off.
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# It also doesn't strip the Qt libs. We can't strip them after running linuxdeploy, because
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# patchelf corrupts the libraries (but they still work), but patchelf+strip makes them crash
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# on load. So, make a backup copy, strip the original (since that's where linuxdeploy finds
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# the libs to copy), then swap them back after we're done.
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# Isn't Linux packaging amazing?
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rm -fr "$DEPSDIR.bak"
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cp -a "$DEPSDIR" "$DEPSDIR.bak"
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IFS="
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"
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for i in $(find "$DEPSDIR" -iname '*.so'); do
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  echo "Stripping deps library ${i}"
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  strip "$i"
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done
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echo "Running linuxdeploy to create AppDir..."
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EXTRA_QT_PLUGINS="core;gui;svg;waylandclient;widgets;xcbqpa" \
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EXTRA_PLATFORM_PLUGINS="libqwayland-egl.so;libqwayland-generic.so" \
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DEPLOY_PLATFORM_THEMES="1" \
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QMAKE="$DEPSDIR/bin/qmake" \
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NO_STRIP="1" \
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$LINUXDEPLOY --plugin qt --appdir="$OUTDIR" --executable="$BUILDDIR/bin/duckstation-qt" ${EXTRA_LIBS_ARGS[@]} \
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--desktop-file="$ROOTDIR/scripts/packaging/org.duckstation.DuckStation.desktop" \
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--icon-file="$ROOTDIR/scripts/packaging/org.duckstation.DuckStation.png" \
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echo "Copying resources into AppDir..."
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cp -a "$BUILDDIR/bin/resources" "$OUTDIR/usr/bin"
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# LinuxDeploy's Qt plugin doesn't include Wayland support. So manually copy in the additional Wayland libraries.
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echo "Copying Qt Wayland libraries..."
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for lib in "${MANUAL_QT_LIBS[@]}"; do
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	srcpath="$DEPSDIR/lib/$lib"
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	dstpath="$OUTDIR/usr/lib/$lib"
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	echo "  $srcpath -> $dstpath"
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	cp "$srcpath" "$dstpath"
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	$PATCHELF --set-rpath '$ORIGIN' "$dstpath"
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done
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# .. and plugins.
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echo "Copying Qt Wayland plugins..."
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for GROUP in "${MANUAL_QT_PLUGINS[@]}"; do
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	srcpath="$DEPSDIR/plugins/$GROUP"
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	dstpath="$OUTDIR/usr/plugins/$GROUP"
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	echo "  $srcpath -> $dstpath"
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	mkdir -p "$dstpath"
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	for srcsopath in $(find "$DEPSDIR/plugins/$GROUP" -iname '*.so'); do
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		# This is ../../ because it's usually plugins/group/name.so
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		soname=$(basename "$srcsopath")
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		dstsopath="$dstpath/$soname"
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		echo "    $srcsopath -> $dstsopath"
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		cp "$srcsopath" "$dstsopath"
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		$PATCHELF --set-rpath '$ORIGIN/../../lib:$ORIGIN' "$dstsopath"
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	done
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done
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# Why do we have to manually remove these libs? Because the linuxdeploy Qt plugin
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# copies them, not the "main" linuxdeploy binary, and plugins don't inherit the
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# include list...
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for lib in "${REMOVE_LIBS[@]}"; do
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	for libpath in $(find "$OUTDIR/usr/lib" -name "$lib"); do
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		echo "    Removing problematic library ${libpath}."
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		rm -f "$libpath"
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	done
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done
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# Restore unstripped deps (for cache).
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rm -fr "$DEPSDIR"
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mv "$DEPSDIR.bak" "$DEPSDIR"
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# Fix up translations.
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rm -fr "$OUTDIR/usr/bin/translations"
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mv "$OUTDIR/usr/translations" "$OUTDIR/usr/bin"
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cp -a "$BUILDDIR/bin/translations" "$OUTDIR/usr/bin"
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# Generate AppStream meta-info.
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echo "Generating AppStream metainfo..."
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mkdir -p "$OUTDIR/usr/share/metainfo"
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"$SCRIPTDIR/../generate-metainfo.sh" "$OUTDIR/usr/share/metainfo"
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echo "Generating AppImage..."
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rm -f "$ASSETNAME"
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"$APPIMAGETOOL" -v --runtime-file "$APPIMAGERUNTIME" "$OUTDIR" "$ASSETNAME"
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