180 lines
4.5 KiB
Bash
180 lines
4.5 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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if [[ "${EUID}" -ne 0 ]]; then
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echo "Kjør som root: sudo bash $0"
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exit 1
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fi
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PS1_FILE="/etc/profile.d/ps1.sh"
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BASH_BASHRC="/etc/bash.bashrc"
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MARKER_START="# >>> global ps1 (managed) >>>"
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MARKER_END="# <<< global ps1 (managed) <<<"
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echo "Skriver global PS1 til: $PS1_FILE"
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# Write the PS1 module (global)
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cat > "$PS1_FILE" <<'EOF'
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#!/usr/bin/env bash
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# This file is loaded globally. It may be sourced from /etc/bash.bashrc.
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# It must not exit the shell; only return when not interactive.
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case "$-" in
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*i*) ;;
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*) return 0 ;;
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esac
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# -------------------------------------------------
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# Nerd Font detection + fallback controls
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# Env overrides:
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# PS1_FORCE_ASCII=1 -> always fallback separators
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# PS1_FORCE_NF=1 -> always use Nerd Font separators
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# -------------------------------------------------
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_ps1_has_nf() {
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if [[ "${PS1_FORCE_ASCII:-0}" == "1" ]]; then return 1; fi
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if [[ "${PS1_FORCE_NF:-0}" == "1" ]]; then return 0; fi
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if command -v fc-list >/dev/null 2>&1; then
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if fc-list 2>/dev/null | grep -qi "Nerd Font"; then
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return 0
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fi
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fi
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return 1
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}
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# -------------------------------------------------
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# Time-based emoji (Europe/Oslo)
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# -------------------------------------------------
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_ps1_symbol() {
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local hh mm h m
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hh=$(TZ=Europe/Oslo date +%H); mm=$(TZ=Europe/Oslo date +%M)
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h=$((10#$hh)); m=$((10#$mm))
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if (( h >= 5 && h <= 8 )); then echo "🌅"
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elif (( h >= 9 && h <= 10 )); then echo "☕"
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elif (( h == 11 && m < 30 )); then echo "🥪"
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elif (( (h == 11 && m >= 30) || (h >= 12 && h <= 15) )); then echo "💻"
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elif (( h == 16 )); then echo "🍲"
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elif (( h >= 17 && h <= 22 )); then echo "🌆"
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else echo "🌙"
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fi
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}
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# -------------------------------------------------
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# Path shortening (keeps /home/user visible)
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# bash 3.2+ compatible (no negative array indexes)
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# -------------------------------------------------
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_ps1_path() {
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local p="$PWD"
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local parts=()
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IFS='/' read -ra parts <<< "$p"
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if ((${#parts[@]} < 6)); then
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echo "$p"
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return
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fi
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local n=${#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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# Public functions
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# -------------------------------------------------
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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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# Zone 1 (date/time/user): gray-blue pastel
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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 (host/path): turquoise / cool green
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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
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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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# Separators w/ fallback (NF vs non-NF)
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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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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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# no-op helper; users can override if needed
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:
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}
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# Enable by default (global standard)
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ps1_on
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EOF
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chmod 0644 "$PS1_FILE"
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echo "Oppdaterer $BASH_BASHRC for å source $PS1_FILE (idempotent)"
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# Remove old managed block if present, then add
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tmp="$(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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$0==e {inside=0; next}
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!inside {print}
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' "$BASH_BASHRC" > "$tmp"
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cat "$tmp" > "$BASH_BASHRC"
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rm -f "$tmp"
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cat >> "$BASH_BASHRC" <<EOF
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$MARKER_START
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# Load global PS1 (managed)
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if [ -r "$PS1_FILE" ]; then
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. "$PS1_FILE"
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fi
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$MARKER_END
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EOF
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echo "✅ Ferdig."
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echo "Logg ut/inn (eller åpne ny shell) for å se global PS1."
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echo
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echo "Tips:"
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echo " - Tving NerdFont glyphs: export PS1_FORCE_NF=1"
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echo " - Tving fallback: export PS1_FORCE_ASCII=1"
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