Improve Linux prompt setup, themes, and uninstall safety

README.md

@@ -7,6 +7,7 @@ This repository provides a comprehensive `.bashrc` configuration along with supp
 ## Table of Contents
 
 - [Installation](#installation)
+- [Switching Color Palettes](#switching-color-palettes)
 - [Uninstallation](#uninstallation)
 - [Configuration Files](#configuration-files)
   - [.bashrc](#bashrc)
@@ -35,7 +36,9 @@ The `setup.sh` script automates the installation process by:
 - Installing Bash 5 with Homebrew on macOS
 - Adding Homebrew Bash to `/etc/shells` and setting it as the default login shell on macOS
 - Installing dependencies (bash-completion, neovim, starship, fzf, zoxide)
-- Installing the MesloLGS Nerd Font required for the prompt when available
+- Installing Starship and JetBrainsMono Nerd Font on Linux
+- Selecting JetBrainsMono Nerd Font in Ptyxis or GNOME Terminal when available
+- Installing the MesloLGS Nerd Font required for the prompt on macOS when available
 - Linking configuration files from `~/.local/share/mybash` to your home directory
 - Linking the fastfetch config to `~/.config/fastfetch/config.jsonc`
 - Ensuring `~/.bash_profile` initializes Homebrew on macOS
@@ -51,6 +54,20 @@ bash --version
 
 `$SHELL` should point to the Homebrew Bash path, such as `/opt/homebrew/bin/bash` on Apple Silicon or `/usr/local/bin/bash` on Intel Macs. On Linux, ensure you have the required permissions and a supported package manager.
 
+## Switching Color Palettes
+
+Use `starship-theme` to recolor the prompt without changing its layout:
+
+```bash
+starship-theme          # interactive picker
+starship-theme fedora   # apply a palette directly
+starship-theme list     # list available palettes
+```
+
+Available palettes include Ubuntu, Claude, Arch, Fedora, Debian, Mint, Manjaro, Pop!_OS, Kali, Gentoo, Dracula, and the original Nord theme.
+
+![Starship color palettes](assets/palettes.png)
+
 ## Uninstallation
 
 To uninstall the `.bashrc` configuration, run:
@@ -59,13 +76,18 @@ To uninstall the `.bashrc` configuration, run:
 cd mybash
 chmod +x uninstall.sh
 ./uninstall.sh
+./uninstall.sh --keep-deps
 ```
 
+Use `--keep-deps` to remove the mybash configuration while retaining installed software and fonts.
+
 The `uninstall.sh` script reverses the installation process by:
 
 - Removing installed dependencies
 - Uninstalling fonts
 - Removing symbolic links to configuration files
+- Restoring the `.bashrc` backup created during installation
+- Restoring previous Ptyxis or GNOME Terminal font settings
 - Deleting the `~/.local/share/mybash` directory
 - Cleaning up additional utilities like `starship`, `fzf`, and `zoxide`
 

setup.sh

@@ -5,6 +5,9 @@ set -eu
 SCRIPT_DIR=$(unset CDPATH && cd -- "$(dirname -- "$0")" && pwd -P)
 OS_NAME=$(uname -s 2>/dev/null || echo unknown)
 MYBASHDIR="$HOME/.local/share/mybash"
+NERD_FONT_FAMILY="JetBrainsMono Nerd Font"
+NERD_FONT_SIZE=12
+NERD_FONT_URL="https://github.com/ryanoasis/nerd-fonts/releases/latest/download/JetBrainsMono.tar.xz"
 
 if command -v tput >/dev/null 2>&1 && [ -t 1 ]; then
 	RC=$(tput sgr0)
@@ -138,24 +141,24 @@ ensure_homebrew_bash_macos() {
 
 install_dependencies_linux() {
 	if command_exists nala; then
-		sudo_cmd nala install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide
+		sudo_cmd nala install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide curl fontconfig tar xz-utils
 	elif command_exists apt-get; then
 		sudo_cmd apt-get update
-		sudo_cmd apt-get install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide
+		sudo_cmd apt-get install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide curl fontconfig tar xz-utils
 	elif command_exists dnf; then
-		sudo_cmd dnf install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide
+		sudo_cmd dnf install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide curl fontconfig tar xz
 	elif command_exists yum; then
-		sudo_cmd yum install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide
+		sudo_cmd yum install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide curl fontconfig tar xz
 	elif command_exists pacman; then
-		sudo_cmd pacman -S --needed bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide
+		sudo_cmd pacman -S --needed bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide curl fontconfig tar xz
 	elif command_exists zypper; then
-		sudo_cmd zypper install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide
+		sudo_cmd zypper install -y bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide curl fontconfig tar xz
 	elif command_exists emerge; then
-		sudo_cmd emerge --ask=n app-shells/bash-completion sys-apps/bat app-text/tree app-text/multitail app-misc/fastfetch app-editors/neovim app-misc/trash-cli app-shells/fzf app-shells/zoxide
+		sudo_cmd emerge --ask=n app-shells/bash-completion sys-apps/bat app-text/tree app-text/multitail app-misc/fastfetch app-editors/neovim app-misc/trash-cli app-shells/fzf app-shells/zoxide net-misc/curl media-libs/fontconfig app-arch/tar app-arch/xz-utils
 	elif command_exists xbps-install; then
-		sudo_cmd xbps-install -Sy bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide
+		sudo_cmd xbps-install -Sy bash-completion bat tree multitail fastfetch neovim trash-cli fzf zoxide curl fontconfig tar xz
 	elif command_exists nix-env; then
-		nix-env -iA nixpkgs.bash-completion nixpkgs.bat nixpkgs.tree nixpkgs.multitail nixpkgs.fastfetch nixpkgs.neovim nixpkgs.trash-cli nixpkgs.fzf nixpkgs.zoxide
+		nix-env -iA nixpkgs.bash-completion nixpkgs.bat nixpkgs.tree nixpkgs.multitail nixpkgs.fastfetch nixpkgs.neovim nixpkgs.trash-cli nixpkgs.fzf nixpkgs.zoxide nixpkgs.curl nixpkgs.fontconfig nixpkgs.gnutar nixpkgs.xz
 	else
 		print_colored "$RED" "Can't find a supported package manager."
 		return 1
@@ -177,6 +180,122 @@ install_dependencies() {
 	esac
 }
 
+install_starship_linux() {
+	[ "$OS_NAME" = Linux ] || return 0
+
+	if command_exists starship; then
+		return 0
+	fi
+
+	print_colored "$YELLOW" "Installing Starship..."
+	mkdir -p "$HOME/.local/bin"
+	starship_installer=$(mktemp)
+	if ! curl -fsSL https://starship.rs/install.sh -o "$starship_installer"; then
+		rm -f "$starship_installer"
+		print_colored "$RED" "Failed to download the Starship installer."
+		return 1
+	fi
+	if ! sh "$starship_installer" -y -b "$HOME/.local/bin"; then
+		rm -f "$starship_installer"
+		print_colored "$RED" "Starship installation failed."
+		return 1
+	fi
+	rm -f "$starship_installer"
+}
+
+install_nerd_font_linux() {
+	[ "$OS_NAME" = Linux ] || return 0
+
+	if fc-list 2>/dev/null | grep -qi "$NERD_FONT_FAMILY"; then
+		return 0
+	fi
+
+	print_colored "$YELLOW" "Installing $NERD_FONT_FAMILY..."
+	font_temp_dir=$(mktemp -d)
+	font_archive="$font_temp_dir/JetBrainsMono.tar.xz"
+	font_unpack_dir="$font_temp_dir/unpacked"
+	font_dir="$HOME/.local/share/fonts/JetBrainsMonoNerdFont"
+	mkdir -p "$font_unpack_dir" "$font_dir"
+
+	if ! curl -fsSL "$NERD_FONT_URL" -o "$font_archive"; then
+		rm -rf "$font_temp_dir"
+		print_colored "$RED" "Failed to download $NERD_FONT_FAMILY."
+		return 1
+	fi
+	if ! tar -xJf "$font_archive" -C "$font_unpack_dir"; then
+		rm -rf "$font_temp_dir"
+		print_colored "$RED" "Failed to extract $NERD_FONT_FAMILY."
+		return 1
+	fi
+
+	find "$font_unpack_dir" -type f -name 'JetBrainsMonoNerdFont-*.ttf' -exec cp {} "$font_dir"/ \;
+	font_found=
+	for font_file in "$font_dir"/*.ttf; do
+		if [ -f "$font_file" ]; then
+			font_found=1
+			break
+		fi
+	done
+	rm -rf "$font_temp_dir"
+
+	if [ -z "$font_found" ]; then
+		print_colored "$RED" "No standard JetBrainsMono Nerd Font files were found in the archive."
+		return 1
+	fi
+
+	fc-cache -f >/dev/null 2>&1
+	print_colored "$GREEN" "$NERD_FONT_FAMILY installed."
+}
+
+configure_terminal_font_linux() {
+	[ "$OS_NAME" = Linux ] || return 0
+
+	if ! command_exists gsettings; then
+		print_colored "$YELLOW" "Set your terminal font to '$NERD_FONT_FAMILY' manually."
+		return 0
+	fi
+
+	terminal_schemas=$(gsettings list-schemas 2>/dev/null || true)
+	terminal_configured=0
+
+	if printf '%s\n' "$terminal_schemas" | grep -q '^org.gnome.Ptyxis$'; then
+		ptyxis_backup="$MYBASHDIR/terminal-font-ptyxis.backup"
+		if [ ! -f "$ptyxis_backup" ]; then
+			{
+				printf 'use-system-font=%s\n' "$(gsettings get org.gnome.Ptyxis use-system-font)"
+				printf 'font-name=%s\n' "$(gsettings get org.gnome.Ptyxis font-name)"
+			} >"$ptyxis_backup"
+		fi
+		gsettings set org.gnome.Ptyxis use-system-font false
+		gsettings set org.gnome.Ptyxis font-name "$NERD_FONT_FAMILY $NERD_FONT_SIZE"
+		terminal_configured=1
+	fi
+
+	if printf '%s\n' "$terminal_schemas" | grep -q '^org.gnome.Terminal.ProfilesList$'; then
+		gnome_profile=$(gsettings get org.gnome.Terminal.ProfilesList default 2>/dev/null | tr -d "'")
+		if [ -n "$gnome_profile" ]; then
+			gnome_schema="org.gnome.Terminal.Legacy.Profile:/org/gnome/terminal/legacy/profiles:/:$gnome_profile/"
+			gnome_backup="$MYBASHDIR/terminal-font-gnome.backup"
+			if [ ! -f "$gnome_backup" ]; then
+				{
+					printf 'profile=%s\n' "$gnome_profile"
+					printf 'use-system-font=%s\n' "$(gsettings get "$gnome_schema" use-system-font)"
+					printf 'font=%s\n' "$(gsettings get "$gnome_schema" font)"
+				} >"$gnome_backup"
+			fi
+			gsettings set "$gnome_schema" use-system-font false
+			gsettings set "$gnome_schema" font "$NERD_FONT_FAMILY $NERD_FONT_SIZE"
+			terminal_configured=1
+		fi
+	fi
+
+	if [ "$terminal_configured" -eq 1 ]; then
+		print_colored "$GREEN" "Configured the terminal to use $NERD_FONT_FAMILY."
+	else
+		print_colored "$YELLOW" "Set your terminal font to '$NERD_FONT_FAMILY' manually."
+	fi
+}
+
 backup_existing() {
 	target=$1
 	if [ -e "$target" ] || [ -L "$target" ]; then
@@ -250,17 +369,22 @@ install_configs() {
 	cp -p "$SCRIPT_DIR/README.md" "$MYBASHDIR/README.md"
 	cp -p "$SCRIPT_DIR/setup.sh" "$MYBASHDIR/setup.sh"
 	cp -p "$SCRIPT_DIR/uninstall.sh" "$MYBASHDIR/uninstall.sh"
-	chmod +x "$MYBASHDIR/setup.sh" "$MYBASHDIR/uninstall.sh"
+	cp -p "$SCRIPT_DIR/starship-theme" "$MYBASHDIR/starship-theme"
+	chmod +x "$MYBASHDIR/setup.sh" "$MYBASHDIR/uninstall.sh" "$MYBASHDIR/starship-theme"
 
 	link_file "$MYBASHDIR/.bashrc" "$HOME/.bashrc"
 	link_file "$MYBASHDIR/starship.toml" "$HOME/.config/starship.toml"
 	link_file "$MYBASHDIR/config.jsonc" "$HOME/.config/fastfetch/config.jsonc"
+	link_file "$MYBASHDIR/starship-theme" "$HOME/.local/bin/starship-theme"
 	ensure_homebrew_bash_macos
 	ensure_bash_profile_brew_shellenv
 	ensure_bash_profile_sources_bashrc
 }
 
 install_dependencies
+install_starship_linux
+install_nerd_font_linux
 install_configs
+configure_terminal_font_linux
 
 print_colored "$GREEN" "Installation complete. Restart your shell or run: source ~/.bashrc"

starship-theme

@@ -0,0 +1,124 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+DEST="${STARSHIP_CONFIG:-$HOME/.config/starship.toml}"
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
+
+SLOTS=(3B4252 434C5E 4C566A 86BBD8 06969A 33658A)
+
+declare -A THEMES=(
+	[ubuntu]="772953 E95420 77216F 5E2750 772953 E95420"
+	[nord]="3B4252 434C5E 4C566A 86BBD8 06969A 33658A"
+	[arch]="2E3B43 1793D1 0F5E8C 33A4DB 0C4A6E 1793D1"
+	[fedora]="2B3A67 3C6EB4 294172 51A2DA 1D2D52 3C6EB4"
+	[debian]="4A0E22 D70A53 A80030 E0467A 6E0024 D70A53"
+	[mint]="264A20 4E9A06 2E6B08 87CF3E 1C3817 4E9A06"
+	[manjaro]="123B22 16A085 0E7A5F 35BF5C 0C2D1A 16A085"
+	[popos]="2B3539 2C7A85 1F5A63 48B9C7 24414A FAA05A"
+	[claude]="2B2A28 C15F3C 8A4A30 D9A87E 6B4232 C15F3C"
+	[kali]="12233A 2777FF 17539E 4D8DFF 0E2A5E 2777FF"
+	[gentoo]="2E2A40 62548E 4A3F73 9B8AC4 39305C 62548E"
+	[dracula]="6272A4 BD93F9 FF79C6 8BE9FD 50FA7B BD93F9"
+)
+
+ORDER=(ubuntu claude arch fedora debian mint manjaro popos kali gentoo dracula nord)
+
+error() {
+	printf 'starship-theme: %s\n' "$*" >&2
+}
+
+find_base() {
+	local candidate slot valid
+	local -a candidates=()
+
+	if [[ -n ${STARSHIP_THEME_BASE:-} ]]; then
+		candidates+=("$STARSHIP_THEME_BASE")
+	fi
+	candidates+=(
+		"$SCRIPT_DIR/starship.toml"
+		"$HOME/.local/share/mybash/starship.toml"
+	)
+
+	for candidate in "${candidates[@]}"; do
+		[[ -f $candidate ]] || continue
+		valid=1
+		for slot in "${SLOTS[@]}"; do
+			if ! grep -q "#$slot" "$candidate"; then
+				valid=0
+				break
+			fi
+		done
+		if ((valid)); then
+			printf '%s\n' "$candidate"
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+list_themes() {
+	local theme
+	printf 'Available palettes:\n'
+	for theme in "${ORDER[@]}"; do
+		printf '  %s\n' "$theme"
+	done
+}
+
+apply_theme() {
+	local name=$1 base temp_file index
+	local -a colors sed_args
+
+	if [[ -z ${THEMES[$name]+set} ]]; then
+		error "unknown palette: $name"
+		list_themes >&2
+		return 1
+	fi
+
+	base=$(find_base) || {
+		error "no pristine mybash starship.toml was found"
+		return 1
+	}
+	read -ra colors <<<"${THEMES[$name]}"
+	mkdir -p "$(dirname -- "$DEST")"
+	temp_file=$(mktemp "${DEST}.tmp.XXXXXX")
+
+	for index in "${!SLOTS[@]}"; do
+		sed_args+=(-e "s/#${SLOTS[$index]}/#${colors[$index]}/g")
+	done
+
+	if ! sed "${sed_args[@]}" "$base" >"$temp_file"; then
+		rm -f "$temp_file"
+		error "failed to build the $name palette"
+		return 1
+	fi
+	mv -f "$temp_file" "$DEST"
+	printf 'Applied "%s" palette to %s\n' "$name" "$DEST"
+}
+
+main() {
+	local choice=${1:-}
+
+	case $choice in
+	list | -l | --list)
+		list_themes
+		;;
+	"")
+		if command -v fzf >/dev/null 2>&1; then
+			choice=$(printf '%s\n' "${ORDER[@]}" | fzf --prompt='Pick a palette: ' --height=40% --reverse) || return 0
+		else
+			printf 'Pick a palette:\n'
+			select choice in "${ORDER[@]}"; do
+				[[ -n $choice ]] && break
+			done
+		fi
+		[[ -n $choice ]] && apply_theme "$choice"
+		;;
+	*)
+		apply_theme "$choice"
+		;;
+	esac
+}
+
+main "$@"