Files
fish-config/functions/smart_exit.fish
T
rootiest e651566e14 docs(functions): split RETURNS into EXIT STATUS and stdout RETURNS
RETURNS previously conflated fish's $status exit code with genuine
stdout/printed output, e.g. rm listing "0/1" as if they were print
values rather than exit codes. Rename RETURNS to EXIT STATUS across
all 83 documented functions, and reintroduce RETURNS as a distinct
label reserved for the 15 functions that actually print to stdout.

Update build-manual.py's ENTRY_HEADS to render Exit Status before
Returns, manualtools.py's SECTIONS constant, and AGENTS.md's label
order and label-usage guidance to match. Add two verify-manual.py
regression tests: EXIT STATUS bodies must never contain stray
stdout/printed language, and Returns: must always render after
Exit Status: when both are present. Regenerate docs/fish-config.md.
2026-07-26 16:41:57 -04:00

118 lines
4.5 KiB
Fish

# Copyright (C) 2026 Rootiest
# SPDX-License-Identifier: AGPL-3.0-or-later
# CATEGORY
# 11-pager-and-logging
#
# SYNOPSIS
# smart_exit [-h] [-n]
#
# DESCRIPTION
# Closes the shell session. In Kitty, captures the terminal scrollback to a
# timestamped log file in $SCROLLBACK_HISTORY_DIR before exiting.
# Automatically prunes junk and the oldest logs when the count exceeds
# $SCROLLBACK_HISTORY_MAX_FILES.
#
# ARGUMENTS
# -h, --help Show help message
# -n, --no-log Exit without saving a scrollback log
#
# EXIT STATUS
# 0 Shell session exited
# 1 Argument parsing failed
#
# EXAMPLE
# smart_exit
# smart_exit --no-log
#
# NOTES
# The exit builtin is wired to smart_exit for interactive sessions. Typing
# `exit` or Ctrl+D behaves identically to calling smart_exit directly.
function smart_exit --description 'Capture colorized scrollback before exiting, with pruning and safe overrides'
# Opinionated guard (C3): exit plainly when overrides are disabled.
# This composes with Task #4's __fish_config_enable_logging, which will
# gate only the scrollback capture while leaving the exit wrapper active.
if not __fish_config_op_enabled __fish_config_op_overrides
builtin exit $argv
end
set -l options h/help n/no-log
argparse $options -- $argv
or return 1
set -l c_primary (set_color cyan)
set -l c_accent (set_color green)
set -l c_warn (set_color yellow)
set -l c_bold (set_color --bold)
set -l c_reset (set_color normal)
if set -q _flag_help
echo -e "Usage: $c_accent"exit"$c_reset [$c_primary""OPTIONS""$c_reset]"
echo ""
echo "Closes the current shell session, automatically archiving the window scrollback."
echo ""
echo "Options:"
echo -e " $c_primary""-h, --help""$c_reset Show this help message"
echo -e " $c_primary""-n, --no-log""$c_reset Exit immediately $c_bold""without""$c_reset saving a scrollback history log"
return 0
end
# C5 — Logging & Capture: skip all capture when logging is disabled.
# When disabled, tell Kitty the window is handled so its watcher doesn't
# capture either — belt-and-suspenders alongside the sentinel file.
if not __fish_config_op_enabled __fish_config_op_logging
if test -n "$KITTY_WINDOW_ID"
kitty @ set-user-vars "logged_by_shell=true" 2>/dev/null
end
builtin exit
end
set -l snapshot_dir (set -q SCROLLBACK_HISTORY_DIR; and echo $SCROLLBACK_HISTORY_DIR; or echo "$HOME/.terminal_history")
set -l max_files (set -q SCROLLBACK_HISTORY_MAX_FILES; and echo $SCROLLBACK_HISTORY_MAX_FILES; or echo 100)
# Handle Scrollback Capture (Skipped if -n/--no-log is used)
if not set -q _flag_no_log
mkdir -p $snapshot_dir
set -l timestamp (date "+%Y-%m-%d_%H-%M-%S")
set -l filename "$snapshot_dir/scrollback_$timestamp.log"
# Safe child process detection
set -l active_tui (ps -o comm= --ppid $fish_pid 2>/dev/null)
if test -n "$KITTY_WINDOW_ID"
# LIVE BUFFER CHECK: Check the active token variable $_
# If the user typed exit, $_ will match "exit". If flags were passed,
# we check if it contains the phrase "exit" to match 'exit -n' or 'exit --help'.
if string match -qr exit "$_"
if not string match -qr '^(nvim|vim|vi|nano|emacs|tmux)$' "$active_tui"
# Capture the log via the shell
kitty @ get-text --match id:$KITTY_WINDOW_ID --extent all --ansi | sed 's/^\[38;2;[0-9;]*m//g' >$filename 2>/dev/null
# Broadcast a window variable flag telling Kitty the log is handled
kitty @ set-user-vars "logged_by_shell=true" 2>/dev/null
end
end
end
# 4. Prune junk logs before counting toward the max
_scrollback_prune_junk $snapshot_dir
# 5. Automatic Pruning Logic
set -l current_logs $snapshot_dir/scrollback_*.log
if test -f "$current_logs[1]"
set -l total_files (count $current_logs)
if test $total_files -gt $max_files
set -l num_to_delete (math $total_files - $max_files)
for i in (seq 1 $num_to_delete)
rm -f $current_logs[$i]
end
end
end
else
echo -e "$c_warn""➔""$c_reset Exiting discreetly; $c_bold""no history logs saved.""$c_reset"
sleep 0.4
end
# Call the true system exit directly
builtin exit
end