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58
dotfiles/banner/banner.sh
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58
dotfiles/banner/banner.sh
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#!/usr/bin/env bash
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# Banner module (global/user). Runs once per login session.
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case "$-" in
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*i*) ;;
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*) return 0 ;;
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esac
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# Disable switch (per-user/per-shell)
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# 1) env: DISABLE_GLOBAL_BANNER=1
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# 2) file: ~/.config/ps1/disable-banner
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if [[ "${DISABLE_GLOBAL_BANNER:-0}" == "1" ]]; then
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return 0
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fi
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if [[ -f "$HOME/.config/ps1/disable-banner" ]]; then
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return 0
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fi
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# Run banner only once per session
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if [[ -n "${__BANNER_ALREADY_SHOWN:-}" ]]; then
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return 0
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fi
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__BANNER_ALREADY_SHOWN=1
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# Find tools (be defensive)
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FIGLET="$(command -v figlet 2>/dev/null || true)"
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LANDSCAPE="$(command -v landscape-sysinfo 2>/dev/null || true)"
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# lolcat is often /usr/games/lolcat on Ubuntu
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if [[ -x /usr/games/lolcat ]]; then
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LOLCAT="/usr/games/lolcat"
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else
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LOLCAT="$(command -v lolcat 2>/dev/null || true)"
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fi
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# If lolcat missing, fallback to cat (no color)
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if [[ -z "${LOLCAT:-}" ]]; then
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LOLCAT="cat"
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fi
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# Punchline source:
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# - global file: /etc/ps1-punchline
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# - fallback: "Hello"
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PUNCHLINE="Hello"
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if [[ -r /etc/ps1-punchline ]]; then
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PUNCHLINE="$(cat /etc/ps1-punchline 2>/dev/null || echo "Hello")"
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fi
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# Print banner (only if figlet exists)
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if [[ -n "${FIGLET:-}" ]]; then
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"$FIGLET" "$(hostname)" -c | "$LOLCAT"
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"$FIGLET" -f digital "$PUNCHLINE" -c | "$LOLCAT"
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fi
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# Print sysinfo if available (Linux)
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if [[ -n "${LANDSCAPE:-}" ]]; then
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"$LANDSCAPE" | "$LOLCAT"
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fi
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@@ -10,21 +10,24 @@ SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
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REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
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SRC_PS1="$REPO_ROOT/ps1/ps1.sh"
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SRC_BANNER="$REPO_ROOT/banner/banner.sh"
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DST_PS1="/etc/profile.d/ps1.sh"
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DST_BANNER="/etc/profile.d/banner.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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if [[ ! -r "$SRC_PS1" ]]; then
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echo "Fant ikke $SRC_PS1"
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exit 1
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fi
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MARKER_START="# >>> dotfiles (managed) >>>"
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MARKER_END="# <<< dotfiles (managed) <<<"
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# Copy modules
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cp -f "$SRC_PS1" "$DST_PS1"
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chmod 0644 "$DST_PS1"
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# Ensure /etc/bash.bashrc sources it (idempotent)
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cp -f "$SRC_BANNER" "$DST_BANNER"
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chmod 0644 "$DST_BANNER"
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# Ensure /etc/bash.bashrc sources both (idempotent)
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tmp="$(mktemp)"
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awk -v s="$MARKER_START" -v e="$MARKER_END" '
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$0==s {inside=1; next}
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@@ -37,17 +40,24 @@ rm -f "$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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# Load PS1 + Banner (managed)
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if [ -r "$DST_PS1" ]; then
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. "$DST_PS1"
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fi
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if [ -r "$DST_BANNER" ]; then
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. "$DST_BANNER"
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fi
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$MARKER_END
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EOF
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echo "✅ Linux/WSL global PS1 installert:"
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echo " $DST_PS1"
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echo " og sourcet fra $BASH_BASHRC"
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echo "✅ Installert globalt (Linux/WSL):"
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echo " - $DST_PS1"
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echo " - $DST_BANNER"
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echo " - sourcet fra $BASH_BASHRC"
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echo
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echo "Disable per bruker:"
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echo " export DISABLE_GLOBAL_PS1=1"
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echo " eller touch ~/.config/ps1/disable"
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echo " export DISABLE_GLOBAL_BANNER=1"
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echo " eller:"
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echo " mkdir -p ~/.config/ps1 && touch ~/.config/ps1/disable # disable PS1"
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echo " mkdir -p ~/.config/ps1 && touch ~/.config/ps1/disable-banner # disable banner"
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