Bug 1 (PRIMARY — unblocks OAuth on MobaXterm): jqf now strips \r from every
jq output. Root cause of the multi-day "OAuth token unavailable" cascade was
CRLF-tainted .oauth.json: `fetched_at=$(jqf ... '.fetched_at')` captured
"1716826990\r", and `$((fetched_at + expires_in))` crashed with the cryptic
"invalid arithmetic operator (error token is \"\"") — bash trying to print
the embedded CR. Single-point fix in jqf covers every caller (ensure, refresh,
status, debug, login). Added belt-and-suspenders `printf '%d'` coercion on
every numeric capture so any future non-CR junk falls back to 0 instead of
crashing arithmetic. /oauth-debug now reports CR/LF byte counts so future
CRLF taint is visible at a glance.
Bug 2 (security): .oauth.json was landing at 0644 on Cygwin/MobaXterm even
though both cmd_login and cmd_refresh called `chmod 600`. Introduced
secure_install (install -m 600 → cp+chmod → mv+chmod fallback chain) so the
mode is set atomically at placement. Also added umask 077 to cmd_refresh
(only cmd_login had it) so the .new sidecar is created tight from the start,
plus a pre-mv chmod 600 on the sidecar for fs-where-install-doesn't-stick.
On a fully POSIX FS this is now triple-redundant; on Cygwin NTFS we get as
close to 0600 as the ACL emulation will allow.
Feature 1: TAB completion for slash commands. New _LARRY_SLASH_CMDS canonical
array near read_user_input, __larry_complete_slash uses `bind -x` to read
$READLINE_LINE / $READLINE_POINT and rewrites the buffer in-place. Prefix
matching is primary; subsequence fuzzy is the fallback. Non-slash lines and
mid-arg TABs fall back to literal-tab insertion so muscle memory isn't
broken. Heredoc continuation lines DO NOT get completion (binding only fires
on the first read). /help section documents the behavior with examples.
Smoke-tested on macOS:
- CRLF-tainted .oauth.json: ensure returns access_token cleanly, status &
debug print real numbers + human timestamps (no bash arith crash).
- secure_install: file ends at 0600 even when source was 0644.
- Completion: /h→/help, /ss→lists ssh-*, /ssh-h→/ssh-hosts, /q→/quit,
/oa→/oauth-debug, /sssp→/ssh-setup (fuzzy), /xyz→silent, non-slash and
"/cmd args"→literal tab.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Bryan Johnson
9f97d15f9a