The Bleep 4.0.7

A fix release for 4.0.6, recommended for anyone using --ambient. In bash,
4.0.6 redrew the prompt after every command, and in bash, fish and PowerShell
a line such as reset; ssh user@host could be rewritten at return to another
host from history before it ran. Both are gone: bash is back to letting a typo
fail and putting the fix at the next prompt, and nothing is rewritten from
history before it has run. zsh, fish, PowerShell, xonsh and Elvish still
correct the line before it runs, with a stricter bar for what they rewrite,
and the first seconds of a session no longer lose corrections.

uv tool install --upgrade thebleep   # or: pipx upgrade thebleep

Fixed

• Bash no longer redraws the prompt after every command. 4.0.6 bound
  return in bash to a bind -x check that corrected the line before it
  ran, and bash erases and redraws the prompt line after every bind -x
  function -- so with --ambient, every command flickered, typo or not.
  Return is no longer bound in bash: the typo runs and fails with bash's own
  message, and the fix is waiting at the next prompt, as before 4.0.6. zsh,
  fish, PowerShell, xonsh and Elvish still correct the line before it runs.

• A line is never rewritten to one from history before it has run.
  reset; ssh user@web-server came back at return as reset; ssh user@build-server -- another host, a different one each time history
  moved. The bash check read reset; as a program it had never heard of,
  and the history rule, asked about a line that had not run, matched a past
  one whose host shared the user@. Now: the bash, fish and PowerShell
  checks leave a first word with ;, &, |, <, >, ( or ) in it
  alone; the history rule says nothing for a line that has not run; and a
  word counts as near a past one only within one slip, measured as every
  other rule measures it, not by what the two have in common.

• ssh adm is no longer rewritten to ssh add before it runs. A man
  page that never spells tool word and names a program of its own on
  PATH or a package's helper -- ssh-add, apt-cache, gpg-agent,
  dpkg-deb -- was read as a subcommand, so a host one letter from add
  or agent was "corrected", and apt cahce became apt cache, which apt
  does not have. Those pages are now taken for the programs they are; the
  vocabulary cache is rebuilt on upgrade.

• Before a line runs, an unknown program is rewritten only for one
  plausible slip. Two edits away (dbild was bind), a single letter
  (g build was rg build), or a short word with two equal answers (ho
  is go and who) now leave the line alone, unless your history or the
  next word picks one. After a failure the list is what it was.

• The first seconds of a session no longer lose corrections. With no
  warm server yet, every keystroke and return that found no socket started
  one, and each deleted the socket before warming up and made its own when
  done -- so on a slow machine the socket came and went for seconds and the
  questions asked meanwhile were lost: in CI, zsh ran git satus
  uncorrected about one time in six. One server per shell now, by a lock;
  the others leave before they start, and the first answer comes sooner.

• GO TEST ./... is no longer turned into GO TEST /q///. The
  keyboard-layout rule took a line in capitals for Hebrew, whose row carries
  the Latin capitals; it now wants a character that is not ASCII.

• apt-getupdate is apt-get update, not apt -getupdate: a fused word
  is split at the longest program. And ca tf is cat f, fin d. is
  find ., when the file is there and the other is not.

Changed

• bench/typo_classes.py measures about twenty tools on both paths. A
  physical keyboard, a class of lines that are right as typed and must be
  left alone (ssh adm, make ssl, npm ci, compound lines), the gcomit
  shape, and bench/typo_after.py to run each typo for real in a container
  and score what bleep offers after it fails. Before a line runs, wrong
  rewrites went from 8.3% to 4.0% with nothing that was right as typed
  touched; after a failure, across nine distributions, from 6.1% to 5.8%.