Add Linux AppImage build process for CI (#309)

.github/workflows/ci.yml

@@ -92,6 +92,12 @@ jobs:
         with:
           name: tiddlydesktop-${{ matrix.platform-for-pkg }}-v${{ steps.td-version.outputs.version }}.zip
           path: output/tiddlydesktop-${{ matrix.platform-for-pkg }}-v${{ steps.td-version.outputs.version }}.zip
+      - name: "📤 Uploading Linux AppImage packages..."
+        uses: actions/upload-artifact@v4
+        if: matrix.platform == 'linux'
+        with:
+          name: tiddlydesktop-${{ matrix.platform-for-pkg }}-v${{ steps.td-version.outputs.version }}.AppImage
+          path: output/tiddlydesktop-${{ matrix.platform-for-pkg }}-v${{ steps.td-version.outputs.version }}.AppImage
     outputs:
       td-version: ${{ steps.td-version.outputs.version }}
 
@@ -115,3 +121,4 @@ jobs:
           draft: true
           files: |
             tiddlydesktop-*-v${{ needs.build-and-package.outputs.td-version }}.zip
+            tiddlydesktop-*-v${{ needs.build-and-package.outputs.td-version }}.AppImage

bld.sh

@@ -101,6 +101,49 @@ cp -RH nwjs/nwjs-sdk-v${NWJS_VERSION}-linux-ia32/* output/linux32/TiddlyDesktop-
 cp -RH source/* output/linux32/TiddlyDesktop-linux32-v$(./bin/get-version-number)
 }
 
+# # Linux AppImage
+# # For Github CI, only
+build_linux_appimage() {
+appdir="output/AppDir.$ARCH"
+build_dependencies="curl findutils desktop-file-utils"
+font_packages="fonts-dejavu-core fonts-dejavu-extra"
+runtime_dependencies="$font_packages libnss3 libnspr4 libasound2-dev libatomic1 libatk1.0-0 libcups2-dev libxkbcommon-dev libatspi2.0-dev libxcomposite-dev libxdamage-dev libxfixes-dev libxrandr-dev libpango1.0-dev libgbm-dev libcairo2-dev libxi-dev libxrender-dev libwayland-dev libfribidi-dev libthai-dev libharfbuzz-dev libpng-dev libfontconfig-dev libfreetype-dev libpixman-1-dev libdatrie-dev libgraphite2-dev libbz2-dev fonts-dejavu"
+package_arch=""
+appimagetool_arch=""
+sudo apt-get install -y $runtime_dependencies $build_dependencies
+
+case "$ARCH" in
+    ia32)
+        package_arch="linux32"
+        appimagetool_arch="i686"
+        curl -L https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-i686.AppImage -o output/appimagetool-$ARCH.AppImage
+    ;;
+    x64)
+        package_arch="linux64"
+        appimagetool_arch="x86_64"
+        curl -L https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage -o output/appimagetool-$ARCH.AppImage
+    ;;
+esac
+
+chmod u+x output/appimagetool-$ARCH.AppImage
+mkdir -p $appdir
+mkdir -p $appdir/usr/{bin,lib,share}
+mkdir -p $appdir/usr/share/fonts/truetype/dejavu
+cp icons/app-icon1024.png $appdir/tiddlydesktop.png
+cp linux/AppRun $appdir/
+cp linux/tiddlydesktop.desktop $appdir/
+cp -r output/$package_arch/TiddlyDesktop-$package_arch-v$(./bin/get-version-number)/* $appdir/usr/bin/
+
+libraries=$(dpkg -L $runtime_dependencies | grep "\.so" 2>/dev/null)
+for f in $libraries; do
+    cp $f* $appdir/usr/lib/
+done
+
+dpkg -L $font_packages | grep "\.ttf" 2>/dev/null | xargs -I '{}' -- cp '{}' $appdir/usr/share/fonts/truetype/dejavu/
+VERSION=$(./bin/get-version-number)
+ARCH=$appimagetool_arch ./output/appimagetool-$ARCH.AppImage --no-appstream $appdir output/tiddlydesktop-$package_arch-v$(./bin/get-version-number).AppImage
+}
+
 if [ "$CI" = "true" ]; then
     # Running in GitHub Actions, where each platform builds as a separate step, in parallel, with PLATFORM and ARCH variables supplied by the GitHub Actions script
 	case "$PLATFORM-$ARCH" in
@@ -118,9 +161,11 @@ if [ "$CI" = "true" ]; then
 			;;
 		linux-ia32)
 			build_linux32
+			build_linux_appimage
 			;;
 		linux-x64)
 			build_linux64
+			build_linux_appimage
 			;;
 	esac
 else

linux/AppRun

@@ -0,0 +1,12 @@
+#!/bin/sh
+SELF=$(readlink -f "$0")
+HERE=${SELF%/*}
+export PATH="${HERE}/usr/bin/:${HERE}/usr/sbin/:${HERE}/usr/games/:${HERE}/bin/:${HERE}/sbin/${PATH:+:$PATH}"
+export LD_LIBRARY_PATH="${HERE}/usr/lib/:${HERE}/usr/lib/i386-linux-gnu/:${HERE}/usr/lib/x86_64-linux-gnu/:${HERE}/usr/lib32/:${HERE}/usr/lib64/:${HERE}/lib/:${HERE}/lib/i386-linux-gnu/:${HERE}/lib/x86_64-linux-gnu/:${HERE}/lib32/:${HERE}/lib64/${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
+export PYTHONPATH="${HERE}/usr/share/pyshared/${PYTHONPATH:+:$PYTHONPATH}"
+export XDG_DATA_DIRS="${HERE}/usr/share/${XDG_DATA_DIRS:+:$XDG_DATA_DIRS}"
+export PERLLIB="${HERE}/usr/share/perl5/:${HERE}/usr/lib/perl5/${PERLLIB:+:$PERLLIB}"
+export GSETTINGS_SCHEMA_DIR="${HERE}/usr/share/glib-2.0/schemas/${GSETTINGS_SCHEMA_DIR:+:$GSETTINGS_SCHEMA_DIR}"
+export QT_PLUGIN_PATH="${HERE}/usr/lib/qt4/plugins/:${HERE}/usr/lib/i386-linux-gnu/qt4/plugins/:${HERE}/usr/lib/x86_64-linux-gnu/qt4/plugins/:${HERE}/usr/lib32/qt4/plugins/:${HERE}/usr/lib64/qt4/plugins/:${HERE}/usr/lib/qt5/plugins/:${HERE}/usr/lib/i386-linux-gnu/qt5/plugins/:${HERE}/usr/lib/x86_64-linux-gnu/qt5/plugins/:${HERE}/usr/lib32/qt5/plugins/:${HERE}/usr/lib64/qt5/plugins/${QT_PLUGIN_PATH:+:$QT_PLUGIN_PATH}"
+EXEC=$(grep -e '^Exec=.*' "${HERE}"/*.desktop | head -n 1 | cut -d "=" -f 2 | cut -d " " -f 1)
+exec "${EXEC}" "$@"

linux/tiddlydesktop.desktop

@@ -0,0 +1,7 @@
+[Desktop Entry]
+Categories=Utility;TextEditor
+Exec=nw
+Icon=tiddlydesktop
+Name=Tiddly Desktop
+Type=Application
+Version=1.4

readme.md

@@ -20,6 +20,18 @@ Unzip into a folder and run `TiddlyWiki.app` or `nw.exe` and for linux `nw`
 
 Note that TiddlyDesktop will not work correctly from a Windows UNC network share (eg ``\\MY-SERVER\SHARE\MyFolder``). You should map the network share to a local drive, and run it from there.
 
+## Linux AppImage
+
+Linux releases are also available in the AppImage format. The AppImages are compatible with glibc-based Desktop Linux distributions such as Ubuntu, Fedora, and Arch Linux. The AppImages are _not_ compatible with musl-based Linux distributions such as Alpine Linux, nor are they compatible with Linux server distributions; Server distributions don't provide enough of the required dependencies.
+
+To use an AppImage, your Linux distribution must provide `fusermount3`, which is typically provided in a package named `fuse3`.
+
+Before you can execute an AppImage, you must set the executable permission:
+
+```
+chmod u+x tiddlydesktop-*-v*.AppImage
+```
+
 ## NixOS
 
 To install TiddlyDesktop on NixOS, you first need to add this repo to your `configuration.nix`; Using a `let` expression at the top of the file is a good approach: