experimental release on github

build-flatpak.sh

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+#!/bin/bash
+
+# Exit on error
+set -e
+
+echo "Checking prerequisites..."
+# Check if required tools are available
+if ! flatpak list | grep -q "org.freedesktop.Platform.*23.08"; then
+    echo "Required Freedesktop runtime is not installed. Please install it manually with the following command:"
+    echo "flatpak install --user flathub org.freedesktop.Platform//23.08 org.freedesktop.Sdk//23.08 -y"
+    exit 1
+fi
+for cmd in flatpak-builder convert curl; do
+    if ! command -v $cmd &> /dev/null; then
+        echo "$cmd is not installed. Please install it first."
+        exit 1
+    fi
+done
+
+# Get the latest Publii release URL and version #TODO: wacky web scraping, maybe use github api to get release number
+echo "Fetching the latest Publii release..."
+LATEST_RELEASE_URL=$(curl -s https://getpublii.com/download/ | grep -oE 'https://cdn.getpublii.com/Publii-[0-9]+\.[0-9]+\.[0-9]+\.AppImage' | head -n 1)
+LATEST_VERSION=$(echo "$LATEST_RELEASE_URL" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+')
+if [ -z "$LATEST_RELEASE_URL" ]; then
+    echo "Error: Unable to fetch the latest Publii release URL. Please verify the website availability."
+    exit 1
+fi
+if [ -z "$LATEST_VERSION" ]; then
+    echo "Error: Unable to extract the Publii version from the URL."
+    exit 1
+fi
+
+# Download the latest Publii AppImage
+echo "Latest Publii version: $LATEST_VERSION"
+echo "Downloading Publii AppImage..."
+curl -L "$LATEST_RELEASE_URL" -o "Publii-$LATEST_VERSION.AppImage"
+
+# Ensure the AppImage is executable
+chmod +x "Publii-$LATEST_VERSION.AppImage"
+# Extract the AppImage
+echo "Extracting Publii AppImage..."
+./"Publii-$LATEST_VERSION.AppImage" --appimage-extract
+
+# Resize the icon to comply with Flatpak requirements (max 512x512)
+ICON_PATH="squashfs-root/Publii.png"
+if [ -f "$ICON_PATH" ]; then
+    convert "$ICON_PATH" -resize 512x512 "$ICON_PATH"
+    echo "Icon resized successfully."
+else
+    echo "Warning: Icon file not found at $ICON_PATH"
+fi
+
+# Build the Flatpak
+echo "Begin build..."
+flatpak-builder --user --install --force-clean build-dir io.publii.Publii.yml
+echo "Build finished:  flatpak run io.publii.Publii"
+
+# Create bundle
+echo "Creating .flatpak bundle file... (this may take a minute or two)"
+flatpak build-bundle ~/.local/share/flatpak/repo ./publii.flatpak io.publii.Publii
+echo "Bundle created: publii.flatpak"
+
+# Optional, clean up files
+rm -rf "Publii-$LATEST_VERSION.AppImage" squashfs-root build-dir .flatpak-builder
+#echo "Temporary files cleaned up."