Files
fish-config/functions/_prune_terminal_logs.fish
T
rootiest 2ce8bebf29 docs(functions): drop backticks from doc-headers
CONTRIBUTING states doc-headers are written as plain text -- the header
is read as-is by config-help, by funcsave, and by anyone opening the
file, and docs/codespans.py adds the site's inline code spans at render
time. 22 files had drifted from that, carrying 41 hand-written spans
that reached config-help and the man page as literal backtick
characters inside an otherwise verbatim block.

The one span whose content ended in a space is requoted rather than
dropped, so "read> " keeps reading as a prompt string.
2026-08-31 21:56:45 -04:00

46 lines
1.9 KiB
Fish

# Copyright (C) 2026 Rootiest
# SPDX-License-Identifier: AGPL-3.0-or-later
# SYNOPSIS
# _prune_terminal_logs <prefix>
#
# DESCRIPTION
# Removes the oldest "<prefix>_*.log" files in SCROLLBACK_HISTORY_DIR
# (default ~/.terminal_history) so the total count for that prefix stays
# within SCROLLBACK_HISTORY_MAX_FILES (default 100). Files are sorted by
# modification time, so the most recently written logs are kept — actively
# appended logs (e.g. a tmux pipe-pane stream) survive.
#
# Uses command ls/command rm to bypass the C1 shadows: the bare ls is
# the eza wrapper, which injects OSC-8 hyperlink escapes into paths, and the
# bare rm is the trash wrapper. The glob is expanded via set first so a
# no-match (empty dir / first run) yields an empty list instead of a hard
# "No matches for wildcard" error.
#
# ARGUMENTS
# prefix Log-name prefix to prune (e.g. tmux, zellij)
#
# EXIT STATUS
# 0 Always
#
# EXAMPLE
# _prune_terminal_logs tmux
function _prune_terminal_logs --argument-names prefix --description 'Prune oldest <prefix>_*.log files beyond the configured max'
set -q prefix[1]; or return 0
set -l log_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)
test -d $log_dir; or return 0
# Glob via `set` so a no-match yields an empty list rather than an error.
set -l logs $log_dir/$prefix"_"*.log
set -q logs[1]; or return 0
# Re-sort by mtime, oldest first. Pass explicit files (no glob) so ls can
# never fail on no-match; `command ls` avoids the eza OSC-8 corruption.
set logs (command ls -1tr $logs 2>/dev/null)
if test (count $logs) -gt $max_files
set -l excess (math (count $logs) - $max_files)
command rm -f $logs[1..$excess]
end
end