Initial AppImage build script

packaging/build-appimage.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Builds an AppImage using appimagetool.
+# You need to run this inside of a build directory.
+
+# Remove old appdir
+rm -rf AppDir
+
+mkdir -p AppDir
+
+DESTDIR="AppDir/" ninja install
+
+cd AppDir
+
+ln -s share/applications/principia.desktop principia.desktop
+ln -s share/icons/hicolor/128x128/apps/principia.png principia.png
+ln -s principia.png .DirIcon
+
+cat > AppRun <<\EOF
+#!/bin/sh
+PATH="$(dirname "$(readlink -f "${0}")")"
+export LD_LIBRARY_PATH="${PATH}"/lib/:"${LD_LIBRARY_PATH}"
+exec "${PATH}/bin/principia" "@$"
+EOF
+chmod +x AppRun
+
+mkdir -p lib
+
+# Copy over libraries
+ldd bin/principia | awk 'NF == 4 { system("cp " $3 " lib/") }'
+
+cd lib/
+# Remove some libraries that break things
+rm libc.so.6 libdl.so.2 libdrm.so.2 libgcc_s.so.1 libGL.so.1 libGLdispatch.so.0 libGLX.so.0 libm.so.6 libOpenGL.so.0 libpthread.so.0 librt.so.1 libstdc++.so.6
+rm libresolv.so.2 libxcb.so.1 libX11.so.6 libasound.so.2 libgdk_pixbuf-2.0.so.0 libfontconfig.so.1 libthai.so.0 libfreetype.so.6 libharfbuzz.so.0 libcom_err.so.2 libexpat.so.1 libglib-2.0.so.0 libgpg-error.so.0 libkeyutils.so.1 libp11-kit.so.0 libuuid.so.1 libz.so.1
+cd ..
+
+# Actually build the appimage
+cd ..
+ARCH=x86_64 appimagetool AppDir/