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#!/bin/bash
HERE="$(dirname "$(readlink -f "$0")")"
APPIMAGE_DIR="$(dirname "$(readlink -f "${APPIMAGE:-$0}")")"
cleanup_stale_fuse_mounts() {
local root="$1"
[ -n "${root}" ] || return 0
[ -r /proc/mounts ] || return 0
local src mp fstype rest mount_path stat_out
while IFS=' ' read -r src mp fstype rest; do
# Decode escaped paths from /proc/mounts.
mount_path="${mp//\\040/ }"
mount_path="${mount_path//\\011/$'\t'}"
mount_path="${mount_path//\\012/$'\n'}"
case "${mount_path}" in
"${root}"/*) ;;
*) continue ;;
esac
case "${fstype}" in
fuse*|fuse.*) ;;
*) continue ;;
esac
stat_out="$(LC_ALL=C stat "${mount_path}" 2>&1 || true)"
if printf "%s" "${stat_out}" | grep -Eq "Transport endpoint is not connected|Stale file handle|Input/output error"; then
echo "[Fluorine] Recovering stale FUSE mount: ${mount_path}"
fusermount3 -uz "${mount_path}" >/dev/null 2>&1 || \
fusermount -uz "${mount_path}" >/dev/null 2>&1 || \
umount -l "${mount_path}" >/dev/null 2>&1 || true
fi
done < /proc/mounts
}
cleanup_stale_fuse_mounts "${APPIMAGE_DIR}"
sync_dir_overwrite_files() {
local name="$1"
local src="${HERE}/usr/share/fluorine/${name}"
local dst="${APPIMAGE_DIR}/${name}"
[ -d "${src}" ] || return 0
if [ ! -d "${dst}" ]; then
echo "[Fluorine] First run: extracting ${name}/ next to AppImage..."
else
echo "[Fluorine] Updating ${name}/ bundled files..."
fi
mkdir -p "${dst}"
# Merge bundled payload while skipping VCS metadata (.git, etc.).
(
cd "${src}"
tar --exclude-vcs -cf - .
) | (
cd "${dst}"
tar -xf -
)
}
# ── Extract/sync writable dirs ──
sync_dir_overwrite_files "plugins"
sync_dir_overwrite_files "lib"
sync_dir_overwrite_files "python"
# Some existing Windows portable setups include plugins/plugin_python with
# .pyd/.dll payload. On Linux, the proxy will prefer this folder if present,
# which can hide the correct Linux mobase module. Overlay Linux runtime files
# into that folder to keep compatibility without deleting user content.
if [ -d "${APPIMAGE_DIR}/plugins/plugin_python" ]; then
if find "${APPIMAGE_DIR}/plugins/plugin_python" -type f \( -name '*.pyd' -o -name 'python*.dll' \) | grep -q .; then
echo "[Fluorine] Detected Windows plugin_python payload, overlaying Linux runtime files..."
mkdir -p "${APPIMAGE_DIR}/plugins/plugin_python/libs"
[ -d "${APPIMAGE_DIR}/plugins/libs" ] && cp -a "${APPIMAGE_DIR}/plugins/libs/." "${APPIMAGE_DIR}/plugins/plugin_python/libs/"
PYTHON_ROOT_CANDIDATE="${HERE}/usr/share/fluorine/python"
[ -d "${PYTHON_ROOT_CANDIDATE}/lib" ] || PYTHON_ROOT_CANDIDATE="${APPIMAGE_DIR}/python"
if [ -d "${PYTHON_ROOT_CANDIDATE}/lib" ]; then
PYVER_DIR="$(find "${PYTHON_ROOT_CANDIDATE}/lib" -mindepth 1 -maxdepth 1 -type d -name 'python3.*' | head -n 1)"
if [ -n "${PYVER_DIR}" ]; then
SITE_DIR="${PYVER_DIR}/site-packages"
[ -d "${SITE_DIR}/PyQt6" ] && cp -a "${SITE_DIR}/PyQt6" "${APPIMAGE_DIR}/plugins/plugin_python/libs/"
[ -d "${SITE_DIR}/PyQt6_sip" ] && cp -a "${SITE_DIR}/PyQt6_sip" "${APPIMAGE_DIR}/plugins/plugin_python/libs/"
[ -d "${SITE_DIR}/sip" ] && cp -a "${SITE_DIR}/sip" "${APPIMAGE_DIR}/plugins/plugin_python/libs/"
fi
fi
fi
fi
# ── Environment ──
# Save original LD_LIBRARY_PATH so child processes (xdg-open, kde-open, etc.)
# can use host libraries instead of the bundled (potentially older) ones.
export FLUORINE_ORIG_LD_LIBRARY_PATH="${LD_LIBRARY_PATH:-}"
export PATH="${HERE}/usr/bin:${HERE}/usr/libexec:${PATH}"
export LD_LIBRARY_PATH="${HERE}/usr/lib:${HERE}/usr/libexec:${LD_LIBRARY_PATH:-}"
# Qt plugins (read-only, inside AppImage)
export QT_PLUGIN_PATH="${HERE}/usr/plugins"
export QT_QPA_PLATFORM_PLUGIN_PATH="${HERE}/usr/plugins/platforms"
if [ -x "${HERE}/usr/libexec/QtWebEngineProcess" ]; then
export QTWEBENGINEPROCESS_PATH="${HERE}/usr/libexec/QtWebEngineProcess"
fi
if [ -d "${HERE}/usr/resources" ]; then
export QTWEBENGINE_RESOURCES_PATH="${HERE}/usr/resources"
fi
if [ -d "${HERE}/usr/translations/qtwebengine_locales" ]; then
export QTWEBENGINE_LOCALES_PATH="${HERE}/usr/translations/qtwebengine_locales"
fi
# Tell the app to use the writable dirs next to the AppImage.
# MO2_BASE_DIR overrides qApp->applicationDirPath() for plugin/library discovery.
export MO2_BASE_DIR="${APPIMAGE_DIR}"
export MO2_PLUGINS_DIR="${APPIMAGE_DIR}/plugins"
export MO2_LIBS_DIR="${APPIMAGE_DIR}/lib"
MO2_PYTHON_BUNDLED="${HERE}/usr/share/fluorine/python"
if [ -d "${MO2_PYTHON_BUNDLED}/lib" ]; then
export MO2_PYTHON_DIR="${MO2_PYTHON_BUNDLED}"
else
export MO2_PYTHON_DIR="${APPIMAGE_DIR}/python"
fi
# Do not export PYTHONHOME/PYTHONPATH globally here. MO2 sets Python runtime
# internally for plugin_python, while child processes (NaK/launchers) must
# use their own system Python environment.
unset PYTHONHOME PYTHONPATH PYTHONNOUSERSITE
# Raise open file descriptor limit — large modlists with FUSE VFS
# can easily exceed the default 1024
ulimit -n 65536 2>/dev/null
cd "${APPIMAGE_DIR}"
exec "${HERE}/usr/bin/ModOrganizer.bin" "$@"
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