log_md.v

1//! LOG.md: the one-screen history Koh keeps at the repo root for people (and2//! agents) who want the last few saves without running a command.34module history56import os7import time8import src.storage910const log_marker = '<!-- Koh maintains this file. Do not edit. Read before starting work. -->'11const log_shown = 201213pub fn write_log_md(store &storage.Store, root string) ! {14	path := os.join_path(root, 'LOG.md')15	if os.is_file(path) {16		existing := os.read_file(path)!17		if !existing.starts_with(log_marker) {18			// Someone else's log file; leave it alone.19			return20		}21	}22	saves := line(store)!23	shown := if saves.len < log_shown { saves.len } else { log_shown }24	mut text := '${log_marker}\n\n# Koh Log\n\n'25	for save in saves[..shown] {26		text += '✦ [${save.id}]  ${save.message} · ${clock(save.created_at)}\n'27	}28	if saves.len > shown {29		text += '\n… ${saves.len - shown} older saves\n'30	}31	text += '\n*full history: koh log*\n'32	os.write_file(path, text)!33}3435fn clock(unix_seconds i64) string {36	return time.unix(unix_seconds).local().format_ss()37}