Add appimage generation parts

Author: eckon

.gitignore

@@ -1 +1,2 @@
 release/
+AppDir/

generate/generate-appimage.sh

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+#!/usr/bin/env bash
+
+# needs to be run in the root folder
+
+# generate the needed files with cmake/make
+# install linuxdeploy (in this root dir for execution)
+# https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+
+VERSION="v0.1.0"
+export VERSION
+
+./linuxdeploy-x86_64.AppImage \
+  -e build/bin/qc \
+  --appdir AppDir/ \
+  --desktop-file generate/qc.desktop \
+  --icon-file generate/qc.svg \
+  --output appimage

generate/qc.desktop

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+[Desktop Entry]
+Name=quick clone
+TryExec=qc
+Exec=qc
+Type=Application
+Terminal=true
+Categories=Utility;
+Icon=qc