Initial Comicviewer implementation

packaging/AppRun

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -e
+
+app_dir="$(dirname "$(readlink -f "$0")")"
+export XDG_DATA_DIRS="${app_dir}/usr/share:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
+
+exec "${app_dir}/usr/bin/comicviewer" "$@"

packaging/build-appimage.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+linuxdeploy="${LINUXDEPLOY:-linuxdeploy-x86_64.AppImage}"
+output_dir="${OUTPUT_DIR:-${root_dir}/dist}"
+work_dir="$(mktemp -d)"
+app_dir="${work_dir}/Comicviewer.AppDir"
+
+cleanup() {
+    rm -rf "${work_dir}"
+}
+trap cleanup EXIT
+
+cargo build --manifest-path "${root_dir}/Cargo.toml" --release
+mkdir -p "${output_dir}"
+mkdir -p "${app_dir}/usr/share/metainfo"
+install -m 0644 \
+    "${root_dir}/data/io.github.comicviewer.Comicviewer.metainfo.xml" \
+    "${app_dir}/usr/share/metainfo/io.github.comicviewer.Comicviewer.appdata.xml"
+
+output_path="${output_dir}/Comicviewer-0.1.0-x86_64.AppImage"
+export LDAI_OUTPUT="${output_path}"
+export PATH="$(dirname "${linuxdeploy}"):${PATH}"
+export APPIMAGE_EXTRACT_AND_RUN=1
+export NO_STRIP=1
+
+# The GTK plugin assumes this optional module directory exists on every distro.
+gtk_plugin="$(command -v linuxdeploy-plugin-gtk.sh || true)"
+if [[ -n "${gtk_plugin}" ]] && [[ ! -d "$(pkg-config --variable=libdir gtk4)/gtk-4.0" ]]; then
+    patched_plugin="${work_dir}/linuxdeploy-plugin-gtk.sh"
+    cp "${gtk_plugin}" "${patched_plugin}"
+    sed -i 's|        copy_lib_tree "$gtk4_libdir" "$APPDIR/"|        if [ -d "$gtk4_libdir" ]; then copy_lib_tree "$gtk4_libdir" "$APPDIR/"; fi|' "${patched_plugin}"
+    chmod +x "${patched_plugin}"
+    export PATH="${work_dir}:${PATH}"
+fi
+
+"${linuxdeploy}" \
+    --appdir "${app_dir}" \
+    --executable "${root_dir}/target/release/comicviewer" \
+    --desktop-file "${root_dir}/data/io.github.comicviewer.Comicviewer.desktop" \
+    --icon-file "${root_dir}/data/io.github.comicviewer.Comicviewer.svg" \
+    --custom-apprun "${root_dir}/packaging/AppRun" \
+    --plugin gtk \
+    --output appimage
+
+echo "Created ${output_path}"