first commit

README.md

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+# GNOME Terminal Auto Theme Sync
+
+![GNOME Terminal Logo](https://upload.wikimedia.org/wikipedia/commons/d/da/GNOME_Terminal_icon_2019.svg)
+
+Automatically sync your GNOME Terminal theme with your system's light/dark mode preferences.
+
+## Features
+
+- 🌓 Automatic theme switching between light and dark modes
+- ⚡ Instant theme application when system preference changes
+- 🔄 Background process that monitors system theme changes
+- 🛠️ Easy installation and uninstallation
+
+## Installation
+
+1. **Download the project files**:
+
+```bash
+git clone https://github.com/MatMasIt/gnome-terminal-autotheme.git
+cd gnome-terminal-autotheme
+```
+
+2. **Run the installer**:
+
+```bash
+./install.sh
+```
+
+3. **Follow the prompts** to complete installation.
+
+The installer will:
+- Copy necessary files
+- Set up autostart entry
+- Start the theme sync service
+
+## Uninstallation
+
+To remove the auto theme sync, simply run the installer again.
+
+You'll be prompted to choose:
+- Remove just the autostart entry or the whole installation
+- Whether to keep your terminal in light or dark mode after uninstall
+
+## Requirements
+
+- GNOME Desktop Environment (tested on GNOME 40+)
+- GNOME Terminal
+- Bash 4.0+
+
+## Configuration
+
+Advanced users can edit the theme definitions in: [sync-terminal-theme.sh](sync-terminal-theme.sh)
+
+## Contributing
+
+Contributions are welcome! Please open an issue or pull request.
+
+## License
+
+MIT License - See [LICENSE](LICENSE) file for details

gnome-terminal-autotheme.desktop

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+[Desktop Entry]
+Type=Application
+Exec=PATH/sync-terminal-theme.sh
+Hidden=false
+NoDisplay=false
+X-GNOME-Autostart-enabled=true
+Name=GNOME Terminal Theme Sync

install.sh

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+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+# Constants
+readonly DEFAULT_DIR="$HOME/.local/share/gnome-terminal-autotheme"
+readonly DESKTOP_FILE_NAME="gnome-terminal-autotheme.desktop"
+readonly AUTOSTART_DIR="$HOME/.config/autostart"
+readonly AUTOSTART_TARGET="$AUTOSTART_DIR/$DESKTOP_FILE_NAME"
+readonly SCRIPT_NAME="sync-terminal-theme.sh"
+readonly VERSION="1.1.0"
+
+# Colors for output
+readonly RED='\033[0;31m'
+readonly GREEN='\033[0;32m'
+readonly YELLOW='\033[0;33m'
+readonly BLUE='\033[0;34m'
+readonly NC='\033[0m' # No Color
+
+# Utility functions
+error() {
+  echo -e "${RED}[ERROR]${NC} $1" >&2
+}
+
+warning() {
+  echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+info() {
+  echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+success() {
+  echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+check_installed() {
+  command -v "$1" >/dev/null 2>&1
+}
+
+stop_existing_processes() {
+  local pids
+  pids=$(pgrep -f "$SCRIPT_NAME" || true)
+
+  if [[ -n "$pids" ]]; then
+    info "Stopping existing theme sync processes..."
+    for pid in $pids; do
+      if kill -0 "$pid" 2>/dev/null; then
+        kill "$pid" && info "Stopped process $pid" || warning "Failed to stop process $pid"
+      fi
+    done
+    # Wait a moment for processes to terminate
+    sleep 0.5
+  fi
+}
+
+validate_path() {
+  local path="$1"
+  [[ -z "$path" ]] && { error "Path cannot be empty"; return 1; }
+  [[ "$path" == "/" ]] && { error "Cannot use root directory"; return 1; }
+  [[ "$path" =~ ^/etc ]] && { error "System directories not allowed"; return 1; }
+  return 0
+}
+
+is_gnome() {
+  [[ "$XDG_CURRENT_DESKTOP" =~ GNOME|gnome ]] || check_installed gnome-session
+}
+
+start_sync() {
+  info "Running sync script now in the background..."
+  nohup bash "$INSTALL_DIR/$SCRIPT_NAME" >/dev/null 2>&1 &
+  disown
+  success "Theme sync script running in background (PID: $!)"
+}
+
+
+check_integrity() {
+  local install_dir="${1:-$DEFAULT_DIR}"
+  info "Checking installation integrity in: $install_dir"
+
+  local desktop_file="$AUTOSTART_TARGET"
+  local target_exec
+
+  if [[ ! -f "$desktop_file" ]]; then
+    error "Autostart desktop entry not found: $desktop_file"
+    return 1
+  fi
+
+  # Extract Exec path from .desktop file
+  target_exec=$(grep -oP '^Exec=\K.+' "$desktop_file" | head -n1)
+  if [[ -z "$target_exec" ]]; then
+    error "No Exec entry found in desktop file"
+    return 1
+  fi
+
+  if [[ ! -f "$target_exec" ]]; then
+    error "Script file referenced in .desktop does not exist: $target_exec"
+    return 1
+  fi
+
+  if [[ ! -x "$target_exec" ]]; then
+    error "Script file is not executable: $target_exec"
+    return 1
+  fi
+
+  if ! head -n 1 "$target_exec" | grep -qE '^#!.*/bash'; then
+    error "Script does not start with a valid bash shebang: $target_exec"
+    return 1
+  fi
+
+  success "All basic integrity checks passed"
+}
+
+
+uninstall() {
+  local install_dir="$1"
+  local uninstall_choice="${2:-autostart}"
+  local theme_choice="${3:-d}"
+
+  info "Starting uninstallation..."
+  
+  # Kill running process
+  stop_existing_processes
+
+  # Remove autostart entry
+  if [[ -f "$AUTOSTART_TARGET" ]]; then
+    rm -f -- "$AUTOSTART_TARGET" && success "Autostart entry removed" || error "Failed to remove autostart entry"
+  fi
+
+  # Apply final theme
+  case "${theme_choice,,}" in
+    l|light)
+      bash "$install_dir/$SCRIPT_NAME" light && success "Applied light theme" || error "Failed to apply light theme"
+      ;;
+    d|dark)
+      bash "$install_dir/$SCRIPT_NAME" dark && success "Applied dark theme" || error "Failed to apply dark theme"
+      ;;
+    *)
+      warning "No theme change applied"
+      ;;
+  esac
+
+  # Remove installation directory if requested
+  if [[ "$uninstall_choice" =~ ^whole$ ]]; then
+    if [[ -d "$install_dir" ]]; then
+      rm -rf -- "$install_dir" && success "Installation directory removed" || error "Failed to remove directory"
+    else
+      warning "Installation directory not found"
+    fi
+  fi
+
+  success "Uninstallation complete"
+}
+
+install() {
+
+  local reinstall="${1:-false}"
+  local provided_path="${2:-}"
+
+  info "Starting installation..."
+
+  stop_existing_processes
+
+  # Check for gnome-terminal
+  if ! check_installed gnome-terminal; then
+    warning "gnome-terminal not found"
+    read -rp "Continue anyway? [y/N]: " proceed_terminal
+    [[ "${proceed_terminal,,}" =~ ^y ]] || { error "Aborted"; exit 1; }
+  fi
+
+  # Check for GNOME
+  if ! is_gnome; then
+    warning "GNOME not detected"
+    read -rp "Continue anyway? [y/N]: " proceed_gnome
+    [[ "${proceed_gnome,,}" =~ ^y ]] || { error "Aborted"; exit 1; }
+  fi
+
+  # Use provided path or prompt user
+  if [[ -n "$provided_path" ]]; then
+    INSTALL_DIR=$(realpath -m "$provided_path")
+  else
+    read -rp "Enter install path [default: $DEFAULT_DIR]: " install_dir
+    INSTALL_DIR=$(realpath -m "${install_dir:-$DEFAULT_DIR}")
+  fi
+
+  if ! validate_path "$INSTALL_DIR"; then
+    error "Invalid install path: $INSTALL_DIR"
+    exit 1
+  fi
+
+  # Create directory
+  mkdir -p -- "$INSTALL_DIR" || { error "Failed to create directory"; exit 1; }
+
+  # Verify source files exist
+  if [[ ! -f "$SCRIPT_NAME" || ! -f "$DESKTOP_FILE_NAME" ]]; then
+    error "Missing required files: $SCRIPT_NAME and $DESKTOP_FILE_NAME must be in current directory"
+    exit 1
+  fi
+
+  # Copy files
+  cp -- "$SCRIPT_NAME" "$INSTALL_DIR/" || { error "Failed to copy script"; exit 1; }
+  cp -- "$DESKTOP_FILE_NAME" "$INSTALL_DIR/" || { error "Failed to copy desktop file"; exit 1; }
+
+  # Make script executable
+  chmod +x "$INSTALL_DIR/$SCRIPT_NAME" || { error "Failed to make script executable"; exit 1; }
+
+  # Create autostart entry
+  mkdir -p -- "$AUTOSTART_DIR" || { error "Failed to create autostart directory"; exit 1; }
+
+  # Escape path for sed
+  local escaped_path=$(printf '%q' "$INSTALL_DIR/$SCRIPT_NAME")
+  sed "s|Exec=.*|Exec=$escaped_path|" "$INSTALL_DIR/$DESKTOP_FILE_NAME" > "$AUTOSTART_TARGET" || {
+    error "Failed to create autostart entry"
+    exit 1
+  }
+
+  success "Installation complete"
+  success "Script installed to: $INSTALL_DIR"
+  success "Autostart entry created: $AUTOSTART_TARGET"
+
+  # Start sync process
+  start_sync
+}
+
+main() {
+  echo -e "${BLUE}=== GNOME Terminal Auto Theme Sync v$VERSION ===${NC}"
+
+  # Check if installed
+  if [[ -f "$AUTOSTART_TARGET" ]]; then
+    local old_install_dir=$(grep -oP 'Exec=\K.+' "$AUTOSTART_TARGET" | sed "s|/$SCRIPT_NAME||")
+    
+    if [[ -z "$old_install_dir" || ! -d "$old_install_dir" ]]; then
+      warning "Could not determine valid install path from autostart entry (you may want to look into it)"
+      info "Fallback to default installation directory"
+      old_install_dir="$DEFAULT_DIR"
+      if [[ ! -d "$old_install_dir" ]]; then
+        error "Default install directory does not exist: $old_install_dir"
+        exit 1
+      fi
+    fi
+
+    
+
+    info "Theme watcher already installed at: $old_install_dir"
+    
+    read -rp "Do you want to (u)ninstall, (r)einstall or check (i)ntegrity? [u/r/i/N]: " choice
+    case "${choice,,}" in
+      u) 
+        # Loop until a valid choice is entered for uninstall
+        while true; do
+          read -rp "Uninstall (w)hole installation or (a)utostart entry? [w/a]: " uninstall_choice
+          case "${uninstall_choice,,}" in
+              a) uninstall_choice="autostart"; break ;;  
+              w) uninstall_choice="whole"; break ;; 
+          esac
+          echo "Invalid choice, please enter 'w' for whole or 'a' for autostart."
+        done
+
+        # Loop until a valid choice is entered for theme selection
+        while true; do
+          read -rp "Set terminal theme to (l)ight or (d)ark after uninstall? [l/d]: " theme_choice
+          case "${theme_choice,,}" in
+              l) theme_choice="l"; break ;;  
+              d) theme_choice="d"; break ;; 
+          esac
+          echo "Invalid choice, please enter 'l' for light or 'd' for dark."
+        done
+
+        uninstall "$old_install_dir" "$uninstall_choice" "$theme_choice"
+        exit 0
+        ;;
+      r) 
+        read -rp "Enter new install path [default: $DEFAULT_DIR]: " install_dir
+        INSTALL_DIR="${install_dir:-$DEFAULT_DIR}"
+        INSTALL_DIR=$(realpath -m "$INSTALL_DIR")
+
+        if [[ "$INSTALL_DIR" != "$old_install_dir" ]]; then
+          read -rp "The new install path is different from the old one ($old_install_dir). Remove old directory? [y/N]: " remove_old
+          if [[ "${remove_old,,}" =~ ^y ]]; then
+            if [[ -d "$old_install_dir" ]]; then
+              rm -rf -- "$old_install_dir" && success "Old installation directory removed" || error "Failed to remove old directory"
+            else
+              warning "Old installation directory not found"
+            fi
+          fi
+        fi
+
+        install true "$INSTALL_DIR"
+        ;;
+      i)
+        check_integrity "$old_install_dir"
+        exit $?
+        ;;
+      *) 
+        info "No changes made"
+        exit 0
+        ;;
+    esac
+  else
+    install
+  fi
+}
+
+main

sync-terminal-theme.sh

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+#!/bin/bash
+
+# Get the default profile UUID
+PROFILE_ID=$(gsettings get org.gnome.Terminal.ProfilesList default | tr -d \')
+PROFILE_PATH="/org/gnome/terminal/legacy/profiles:/:$PROFILE_ID"
+
+# Define themes
+set_dark_theme() {
+    gsettings set org.gnome.Terminal.Legacy.Settings theme-variant 'dark'
+    dconf write $PROFILE_PATH/use-theme-colors false
+    dconf write $PROFILE_PATH/foreground-color "'#d4d4d4'"
+    dconf write $PROFILE_PATH/background-color "'#1e1e1e'"
+    dconf write $PROFILE_PATH/palette "['#1e1e1e', '#f44747', '#619955', '#ffaf00', '#85dfff', '#d27bff', '#4EC9B0', '#d4d4d4', '#808080', '#f44747', '#619955', '#ffaf00', '#85dfff', '#d27bff', '#4EC9B0', '#ffffff']"
+    dconf write $PROFILE_PATH/cursor-color "'#d4d4d4'"
+}
+
+set_light_theme() {
+    gsettings set org.gnome.Terminal.Legacy.Settings theme-variant 'light'
+    dconf write $PROFILE_PATH/use-theme-colors false
+    dconf write $PROFILE_PATH/foreground-color "'#000000'"
+    dconf write $PROFILE_PATH/background-color "'#ffffff'"
+    dconf write $PROFILE_PATH/palette "['#000000', '#cc0000', '#4e9a06', '#c4a000', '#3465a4', '#75507b', '#06989a', '#d3d7cf', '#555753', '#ef2929', '#8ae234', '#fce94f', '#729fcf', '#ad7fa8', '#34e2e2', '#eeeeec']"
+    dconf write $PROFILE_PATH/cursor-color "'#000000'"
+}
+
+update_terminal_theme() {
+    SCHEME=$(gsettings get org.gnome.desktop.interface color-scheme)
+
+    if [[ "$SCHEME" == *"dark"* ]]; then
+        set_dark_theme
+    else
+        set_light_theme
+    fi
+}
+
+# Check for manual arguments (light or dark)
+if [[ "${1:-}" == "light" ]]; then
+    set_light_theme
+    echo "[sync-script] Applied light theme manually."
+    exit 0
+elif [[ "${1:-}" == "dark" ]]; then
+    set_dark_theme
+    echo "[sync-script] Applied dark theme manually."
+    exit 0
+fi
+
+# Run once immediately to apply based on the current GNOME theme
+update_terminal_theme
+
+# Monitor and auto-update GNOME theme changes
+echo "[sync-script] Monitoring GNOME theme changes..."
+gsettings monitor org.gnome.desktop.interface color-scheme | while read -r; do
+    update_terminal_theme
+done