med fallback
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246
bashscript.sh
246
bashscript.sh
@@ -1,129 +1,147 @@
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#!/usr/bin/env bash
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# NOTE:
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# This prompt uses Nerd Font (Powerline glyphs).
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# Recommended font: JetBrainsMono Nerd Font
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#
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# If separators like look broken:
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# 1) Run ./install-nerdfont.sh
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# 2) Select "JetBrainsMono Nerd Font" in your terminal
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set -euo pipefail
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# Must be root
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if [[ "${EUID}" -ne 0 ]]; then
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echo "Kjør som root: sudo bash $0"
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# Must be sourced
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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echo "Bruk: source ps1.sh"
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exit 1
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fi
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### 1) Ensure required packages installed
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need_pkgs=(landscape-common figlet lolcat)
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missing=()
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for p in "${need_pkgs[@]}"; do
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if ! dpkg -s "$p" >/dev/null 2>&1; then
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missing+=("$p")
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fi
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done
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if ((${#missing[@]} > 0)); then
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echo "Installerer manglende pakker: ${missing[*]}"
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export DEBIAN_FRONTEND=noninteractive
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apt-get update -y
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apt-get install -y "${missing[@]}"
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fi
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### 2) Ask punchline (clear wording, always from TTY)
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echo
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read -r -p "Skriv ønsket punchline (vises under hostname i banneret): " PUNCHLINE </dev/tty
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if [[ -z "${PUNCHLINE// }" ]]; then
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echo "Punchline kan ikke være tom."
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exit 1
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fi
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GLOBAL_BASHRC="/etc/bash.bashrc"
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MARKER_START="# >>> global custom bashrc (managed) >>>"
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MARKER_END="# <<< global custom bashrc (managed) <<<"
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# Backup
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cp -a "$GLOBAL_BASHRC" "${GLOBAL_BASHRC}.backup.$(date +%Y%m%d_%H%M%S)" 2>/dev/null || true
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# Remove old managed block (if any)
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tmp="$(mktemp)"
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awk -v s="$MARKER_START" -v e="$MARKER_END" '
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$0==s {inside=1; next}
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$0==e {inside=0; next}
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!inside {print}
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' "$GLOBAL_BASHRC" > "$tmp"
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cat "$tmp" > "$GLOBAL_BASHRC"
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rm -f "$tmp"
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# Append fresh managed block (NO expansion while writing)
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cat >> "$GLOBAL_BASHRC" <<'EOF'
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# >>> global custom bashrc (managed) >>>
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# Only run in interactive shells
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case "$-" in
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*i*) ;;
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*) return ;;
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*) return 0 ;;
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esac
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##### HISTORY / BASICS #####
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HISTCONTROL=ignoreboth
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shopt -s histappend
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HISTSIZE=999999
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HISTFILESIZE=999999
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shopt -s checkwinsize
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[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
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##### PROMPT (GLOBAL) #####
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export PS1="\[\e[0m\]\[\e[38;5;35m\]╭─(\[\e[38;5;38m\]\t\[\e[38;5;35m\])-(\[\e[38;5;38m\]\j\[\e[38;5;35m\])-(\[\e[38;5;38m\]\H\[\e[38;5;35m\])-(\[\e[38;5;38m\]\w\[\e[38;5;35m\])\n\[\e[38;5;35m\]╰──🚀 \[\e[0m\]"
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##### COLORS / ALIASES #####
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if [ -x /usr/bin/dircolors ]; then
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test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
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alias ls='ls --color=auto'
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alias grep='grep --color=auto'
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alias fgrep='fgrep --color=auto'
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alias egrep='egrep --color=auto'
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fi
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alias ll='ls -alF'
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alias la='ls -A'
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alias l='ls -CF'
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if [ -f ~/.bash_aliases ]; then
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. ~/.bash_aliases
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fi
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if ! shopt -oq posix; then
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if [ -f /usr/share/bash-completion/bash_completion ]; then
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. /usr/share/bash-completion/bash_completion
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elif [ -f /etc/bash_completion ]; then
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. /etc/bash_completion
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# -------------------------------------------------
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# Nerd Font detection + fallback controls
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#
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# Env overrides:
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# PS1_FORCE_ASCII=1 -> always use ASCII/Unicode fallback separators
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# PS1_FORCE_NF=1 -> always use Nerd Font separators
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# -------------------------------------------------
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_ps1_has_nf() {
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# Explicit overrides win
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if [[ "${PS1_FORCE_ASCII:-0}" == "1" ]]; then
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return 1
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fi
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if [[ "${PS1_FORCE_NF:-0}" == "1" ]]; then
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return 0
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fi
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fi
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##### BANNER #####
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LOLCAT="/usr/games/lolcat"
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if [ ! -x "$LOLCAT" ]; then
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LOLCAT="$(command -v lolcat 2>/dev/null || true)"
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fi
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[ -z "$LOLCAT" ] && LOLCAT="cat"
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# Heuristic: if fc-list exists and shows a Nerd Font family, assume NF works.
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if command -v fc-list >/dev/null 2>&1; then
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# Keep it generic: any "Nerd Font" is good enough
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if fc-list 2>/dev/null | grep -qi "Nerd Font"; then
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return 0
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fi
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fi
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figlet "$(hostname)" -c | "$LOLCAT"
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figlet -f digital "__PUNCHLINE__" -c | "$LOLCAT"
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landscape-sysinfo | "$LOLCAT"
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# <<< global custom bashrc (managed) <<<
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# Otherwise: safe fallback
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return 1
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}
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EOF
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# -------------------------------------------------
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# Time-based emoji (Europe/Oslo)
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# -------------------------------------------------
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_ps1_symbol() {
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local h m hh mm
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hh=$(TZ=Europe/Oslo date +%H); mm=$(TZ=Europe/Oslo date +%M)
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h=$((10#$hh)); m=$((10#$mm))
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# Replace placeholder with user punchline (safe)
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safe_punchline="$(printf '%s' "$PUNCHLINE" | sed 's/[\/&]/\\&/g')"
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sed -i "s/__PUNCHLINE__/${safe_punchline}/g" "$GLOBAL_BASHRC"
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if (( h >= 5 && h <= 8 )); then echo "🌅" # tidlig
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elif (( h >= 9 && h <= 10 )); then echo "☕" # formiddag
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elif (( h == 11 && m < 30 )); then echo "🥪" # lunsj
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elif (( (h == 11 && m >= 30) || (h >= 12 && h <= 15) )); then echo "💻" # dag
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elif (( h == 16 )); then echo "🍲" # middag
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elif (( h >= 17 && h <= 22 )); then echo "🌆" # kveld
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else echo "🌙" # natt
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fi
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}
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echo
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echo "Ferdig ✅"
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echo "Global PS1 + banner er nå aktivt for alle brukere."
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echo "Kjør scriptet på nytt for å endre punchline."
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# -------------------------------------------------
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# Path shortening (keeps /home/user visible)
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# Compatible with bash 3.2+ (no negative array indexes)
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# -------------------------------------------------
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_ps1_path() {
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local p="$PWD"
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local parts=()
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IFS='/' read -ra parts <<< "$p"
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# If short, keep full
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if ((${#parts[@]} < 6)); then
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echo "$p"
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return
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fi
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# / + first two comps + … + last two comps
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local n=${#parts[@]}
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local a="${parts[1]}"
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local b="${parts[2]}"
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local c="${parts[$((n-2))]}"
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local d="${parts[$((n-1))]}"
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echo "/${a}/${b}/…/${c}/${d}"
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}
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# -------------------------------------------------
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# Dynamic vars updated before each prompt
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# -------------------------------------------------
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__PS1_SYM=""
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__PS1_PATH=""
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__PS1_STATUS=0
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__PS1_USE_NF=0
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_ps1_update() {
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__PS1_STATUS=$?
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__PS1_SYM="$(_ps1_symbol)"
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__PS1_PATH="$(_ps1_path)"
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if _ps1_has_nf; then __PS1_USE_NF=1; else __PS1_USE_NF=0; fi
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}
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# -------------------------------------------------
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# Enable / disable
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# -------------------------------------------------
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__PS1_PREV_PROMPT_COMMAND="${PROMPT_COMMAND-}"
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ps1_on() {
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PROMPT_COMMAND="_ps1_update"
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local RST="\[\e[0m\]"
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# Two-zone palette (as requested)
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# Zone 1: gray-blue pastel (date/time/user)
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local Z1_BG="\[\e[48;5;61m\]"
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local Z1_FG="\[\e[38;5;255m\]"
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# Zone 2: turquoise / cool green (host/path)
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local Z2_BG="\[\e[48;5;37m\]"
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local Z2_FG="\[\e[38;5;255m\]"
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local PATH_FG="\[\e[38;5;194m\]"
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# Frame line
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local FRAME="\[\e[38;5;60m\]"
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# Status colors
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local OK="\[\e[38;5;76m\]"
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local BAD="\[\e[38;5;203m\]"
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# Build separators based on NF availability (evaluated at prompt time via $__PS1_USE_NF)
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# We avoid embedding raw variables that bash re-parses weirdly by using $(...) inside PS1 only for
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# selecting literal separators (safe), while keeping all color escapes static and balanced.
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local SEP_EXPR='\$( [ "$__PS1_USE_NF" -eq 1 ] && printf "" || printf "▶" )'
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local LEFT_EXPR='\$( [ "$__PS1_USE_NF" -eq 1 ] && printf "" || printf "[" )'
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local RIGHT_EXPR='\$( [ "$__PS1_USE_NF" -eq 1 ] && printf "" || printf "]" )'
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local PROMPT_SYM="\$( [ \$__PS1_STATUS -eq 0 ] && printf '${OK}' || printf '${BAD}' )➜${RST}"
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# Keep exact order: date -> time -> user -> host -> path, then newline, then prompt
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# Note: \d, \A, \u, \h are PS1 escapes.
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PS1="\
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${FRAME}╭─${RST}\
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${Z1_BG}${Z1_FG}${LEFT_EXPR} \d \A \u ${RST}${Z1_BG}${Z2_BG}${Z2_FG}${SEP_EXPR}${RST}\
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${Z2_BG}${Z2_FG} @\h ${PATH_FG}\${__PS1_PATH} ${RST}${Z2_BG}${Z2_FG}${RIGHT_EXPR}${RST}\
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\n${FRAME}╰── ${RST}${PROMPT_SYM} \${__PS1_SYM} "
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}
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ps1_off() {
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PROMPT_COMMAND="$__PS1_PREV_PROMPT_COMMAND"
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}
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