chore: standardize build procedure

CMakeLists.txt

@@ -89,6 +89,10 @@ install(TARGETS wallpaper-carousel
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
 
+install(FILES ${CMAKE_CURRENT_LIST_DIR}/app/wallpaper-carousel.desktop
+    DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/applications
+)
+
 if(QT_VERSION_MAJOR EQUAL 6)
     qt_finalize_executable(wallpaper-carousel)
 endif()

README.md

@@ -1,5 +1,52 @@
-It might not be that worthy to write a Qt application for such a small feature, but why not?
+## What is this
+
+It might not be that worthy to write a QtWidget application for such a small feature, but I kind of enjoy the pain... So here it is.
 
 <img src="https://github.com/Uyanide/backgrounds/blob/master/screenshots/desktop-alt.jpg?raw=true"/>
 
-The config file should be placed in `~/.config/wallpaper-carousel/config.json`. Refer to [config.example.json](https://github.com/Uyanide/Wallpaper_Chooser/blob/master/config.example.json) and [config.h](https://github.com/Uyanide/Wallpaper_Chooser/blob/master/src/config.h) for specific entries.
+## How to build
+
+1. Make sure you have Qt6 libraries, CMake and a C++ compiler installed.
+
+   e.g. On Arch-based systems:
+
+   ```bash
+   sudo pacman -S --needed qt6-base cmake gcc
+   ```
+
+2. Clone the repository:
+
+   ```bash
+   git clone https://github.com/Uyanide/Wallpaper_Carousel.git --depth 1
+   cd Wallpaper_Carousel
+   ```
+
+3. Run build script:
+
+   ```bash
+   app/install.sh
+   ```
+
+   or if you prefer a prefix other than `/usr/local`, e.g. `$HOME/.local`:
+
+   ```bash
+   PREFIX=$HOME/.local ./app/install.sh
+   ```
+
+> [!NOTE]
+>
+> This script will ask for `sudo` permission if the prefix is set to a system directory like `/usr/local`. Please make sure you have read and trust the script before proceeding.
+
+## How to use
+
+The config file should be placed in `~/.config/wallpaper-carousel/config.json`. Refer to [config.example.json](config.example.json) and [config.h](src/config.h) for specific entries.
+
+A minimum config should at least contain the path(s) to wallpapers, e.g.
+
+```json
+{
+  "wallpaper": {
+    "dirs": ["/path/to/your/wallpapers"]
+  }
+}
+```

app/install.sh

@@ -1,18 +1,23 @@
 #!/bin/env bash
 
+set -euo pipefail
+
+prefix=${PREFIX:-/usr/local}
+
 path="$(dirname "$(readlink -f "$0")")"
 
 cmake -S "$path/.." -B "$path/../build" \
-    -DCMAKE_BUILD_TYPE=Release \
-    -DCMAKE_INSTALL_PREFIX="$HOME"/.local || exit 1
+    -DCMAKE_INSTALL_PREFIX="$prefix"
 
-cmake --build "$path/../build" --target install || exit 1
+cmake --build "$path/../build"
 
-cp "$path/wallpaper-carousel.desktop" "$HOME"/.local/share/applications/wallpaper-carousel.desktop
-
-echo "Exec=$HOME/.local/bin/wallpaper-carousel" >>"$HOME"/.local/share/applications/wallpaper-carousel.desktop
-
-if command -v update-desktop-database &>/dev/null; then
-    update-desktop-database "$HOME"/.local/share/applications/
+if [ ! -w "$prefix" ] && [ "$(id -u)" -ne 0 ]; then
+    sudo cmake --install "$path/../build"
+else
+    cmake --install "$path/../build"
 fi
 
+if command -v update-desktop-database &>/dev/null; then
+    echo "Updating desktop database..."
+    update-desktop-database "$prefix"/share/applications/ || true
+fi

app/wallpaper-carousel.desktop

@@ -2,7 +2,11 @@
 Version=1.0
 Type=Application
 Name=Wallpaper Carousel
+GenericName=Animated wallpaper selector
+TryExec=wallpaper-carousel
+Exec=wallpaper-carousel
 Comment=A small wallpaper utility made with Qt
 Terminal=false
-Categories=Application;Utility;
+Categories=Application;Utility;DesktopSettings;
 StartupNotify=true
+Keywords=wallpapers;