Files
hermes-agent/scripts/desktop-update/posix.sh
elvindu 013e94b38a fix(install): name the marker owner as the Desktop hand-off pid
The posix hand-off hands marker line 1 to a custodian subshell
(marker_refresher_start) and then exported HERMES_UPDATE_HANDOFF_PID="$$" —
the hand-off script's own pid.

`hermes update` adopts a live claim only when the owner is its own pid, the
HERMES_UPDATE_HANDOFF_PID value, or an ancestor
(update_lock.UpdateLock._is_partner). The custodian is a *sibling* of the
hand-off script, so it is none of the three and the ancestry walk can never
reach it: every desktop-initiated update refused the claim its own script had
just made and exited 2 ("Another Hermes update is already running ...
process <custodian>"), leaving the Desktop to relaunch and retry forever.

Export $MY_PID instead: the custodian once the handover succeeded, and the
script's own pid when it did not.

Fixes #134268
2026-10-10 10:44:34 -07:00

1321 lines
65 KiB
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Executable File

#!/usr/bin/env bash
# posix.sh -- repo-owned macOS/Linux Desktop update hand-off.
#
# The whole job: wait for the Desktop to exit, run `hermes update`, tell the
# shim how it went, reopen the app. The Desktop spawns this detached and
# quits; because it lives in the checkout, every update refreshes the code
# that drives the next one. Replaces the in-app updater
# (applyUpdatesPosixInApp) -- with the app gone before the update starts,
# the HERMES_DESKTOP_CHILD_PID reaper-exclusion dance dies with it.
#
# CONTRACT (keep in sync with apps/desktop/electron/main.ts):
# bash scripts/desktop-update/posix.sh
# --install-root <path> repo checkout (HERMES_HOME/hermes-agent)
# [--branch <ref> | --channel stable|canary|main] default: branch main
# --desktop-pid <pid> the Electron main process to wait out
# [--handoff-run <id>] hand-off protocol 2: adopt ONLY the Desktop's
# bridge marker carrying `run:<id>`
# [--marker-op reclaim|withdraw] the Desktop's marker helper: one verdict
# line on stdout, no update (see marker.sh)
# [--relaunch-target <p>] mac: running .app to swap+reopen;
# linux: running binary (omit = no relaunch)
# [--relaunch-cwd <p>] linux: working directory to restore on relaunch
# [--sandbox-fallback] linux: the caller vouches for a sandbox opt-out
# (ELECTRON_DISABLE_SANDBOX / --no-sandbox launch)
# [--no-ui] [--no-marker-cleanup] [--self-test-ui] [--self-test-gate]
# [--self-test-marker] [--self-test-refresh-every <seconds>] (tests only:
# line-2 refresh cadence, default 300)
# [--self-test-swap-interrupt] (tests only: kill the macOS bundle swap at
# every step, prove mac_bundle_recover; see
# swap-selftest.sh)
# [-- <args...>] linux: filtered launch args to replay
#
# The shim (ui.html in a chromeless browser app window) is decoration: it
# polls /progress for the current stage or a terminal event and reacts. The
# stages come from the gates below, never from child output. It owns nothing --
# relaunch, result file, marker hygiene all happen here, identically, when
# no renderer exists. No chromium-family browser found = no UI, fine; macOS
# never opens one (see find_browser).
#
# The Desktop reads the next line to pick the hand-off protocol it speaks.
# hermes-handoff-protocol: 2
#
# ORDERING (the durable-truth rule): swap and relaunch are DECIDED AND
# EXECUTED before the result file is written, the marker is removed, or a
# terminal event reaches the shim. Nothing user-visible may claim an outcome
# the filesystem hasn't already delivered.
set -u
ORIGINAL_ARGS=("$@")
INSTALL_ROOT="" BRANCH="main" CHANNEL="" DESKTOP_PID=0 RELAUNCH_TARGET=""
BRANCH_EXPLICIT=0
RELAUNCH_CWD="" SANDBOX_FALLBACK=0 RELAUNCH_ARGS=()
NO_GATEWAY=0
NO_UI=0 NO_MARKER_CLEANUP=0 SELF_TEST_UI=0 SELF_TEST_GATE=0 SELF_TEST_MARKER=0
SELF_TEST_TCC_HEAL=0 SELF_TEST_SWAP=0
HANDOFF_DAEMONIZED=0 HANDOFF_RUN="" MARKER_OP=""
MARKER_REFRESH_EVERY_S=300
while [ $# -gt 0 ]; do
case "$1" in
--install-root) INSTALL_ROOT="$2"; shift 2 ;;
--branch) BRANCH="$2"; BRANCH_EXPLICIT=1; shift 2 ;;
--channel)
case "${2:-}" in
stable|canary|main) CHANNEL="$2" ;;
*) echo "--channel must be stable, canary, or main" >&2; exit 64 ;;
esac
shift 2 ;;
--desktop-pid) DESKTOP_PID="$2"; shift 2 ;;
--handoff-run) HANDOFF_RUN="$2"; shift 2 ;;
--marker-op) MARKER_OP="$2"; NO_UI=1; shift 2 ;;
--relaunch-target) RELAUNCH_TARGET="$2"; shift 2 ;;
--relaunch-cwd) RELAUNCH_CWD="$2"; shift 2 ;;
--sandbox-fallback) SANDBOX_FALLBACK=1; shift ;;
--no-gateway) NO_GATEWAY=1; shift ;;
--no-ui) NO_UI=1; shift ;;
--no-marker-cleanup) NO_MARKER_CLEANUP=1; shift ;;
--self-test-ui) SELF_TEST_UI=1; shift ;;
--self-test-gate) SELF_TEST_GATE=1; shift ;;
--self-test-tcc-heal) SELF_TEST_TCC_HEAL=1; shift ;;
--self-test-swap-interrupt) SELF_TEST_SWAP=1; NO_UI=1; shift ;;
--daemonized) HANDOFF_DAEMONIZED=1; shift ;;
--self-test-marker) SELF_TEST_MARKER=1; NO_UI=1; NO_MARKER_CLEANUP=1; shift ;;
--self-test-refresh-every) MARKER_REFRESH_EVERY_S="$2"; shift 2 ;;
--) shift; RELAUNCH_ARGS=("$@"); shift $# ;;
*) echo "unknown arg: $1" >&2; exit 64 ;;
esac
done
[ "$SELF_TEST_UI" -eq 1 ] || [ "$SELF_TEST_SWAP" -eq 1 ] || [ -n "$INSTALL_ROOT" ] || { echo "--install-root is required" >&2; exit 64; }
case "$DESKTOP_PID" in ''|*[!0-9]*) echo "--desktop-pid must be a pid" >&2; exit 64 ;; esac
case "$MARKER_REFRESH_EVERY_S" in ''|0|*[!0-9]*) echo "--self-test-refresh-every must be a positive number of seconds" >&2; exit 64 ;; esac
[ -z "$HANDOFF_RUN" ] || [[ "$HANDOFF_RUN" =~ ^[A-Za-z0-9._-]{1,128}$ ]] || { echo "--handoff-run must match [A-Za-z0-9._-]{1,128}" >&2; exit 64; }
[ "$BRANCH_EXPLICIT" -eq 0 ] || [ -z "$CHANNEL" ] || { echo "--branch and --channel are mutually exclusive" >&2; exit 64; }
TARGET_ARGS=(--branch "$BRANCH")
[ -z "$CHANNEL" ] || TARGET_ARGS=(--channel "$CHANNEL")
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
HERMES_HOME="${HERMES_HOME:-${INSTALL_ROOT:+$(dirname "$INSTALL_ROOT")}}"
HERMES_HOME="${HERMES_HOME:-${TMPDIR:-/tmp}}"
export HERMES_HOME
MARKER="$HERMES_HOME/.hermes-update-in-progress"
LOG_DIR="$HERMES_HOME/logs"; mkdir -p "$LOG_DIR" 2>/dev/null || true
LOG="$LOG_DIR/desktop-update-handoff.log"
RESULT="$HERMES_HOME/.hermes-update-result.json"
STATUS="${TMPDIR:-/tmp}/hermes-update-status.$$"
STARTED_AT="$(date +%s)" # the shim's elapsed clock; see serve-ui.py
# Separate identity from both heartbeat time and adopt-only HANDOFF_RUN.
# Old Desktop / direct launches need an ID too, without changing claim rules.
RESULT_RUN_ID="${HANDOFF_RUN:-posix-$$-${STARTED_AT}-${RANDOM}}"
UI_SERVER_PID="" UI_BROWSER_PID="" UI_PANEL_PID="" UI_PROFILE_DIR="" FINAL_CODE=1
FINAL_MSG="update did not complete"
DONE_NOTE="" # set when the update succeeded but the app will NOT reopen itself
# Follow-up work that failed AFTER `hermes update` committed the new code. The
# result stays ok:true (contract C3: ok:false only while still on the previous
# version); each entry reaches the Desktop as a warning.
WARNINGS=()
MARKER_BODY="" # the claim we published (logging; release judges identity, not bytes)
MARKER_CLAIMED=0
APP_REBUILD_FAILED=0
log() {
if [ -n "$MARKER_OP" ]; then echo "$(date +%Y-%m-%dT%H:%M:%S%z) $1" >> "$LOG" 2>/dev/null
else echo "$(date +%Y-%m-%dT%H:%M:%S%z) $1" | tee -a "$LOG" 2>/dev/null; fi
}
owed_followup_steps() { # $OUT -> the distinct owed steps, space-separated, in print order
# hermes_cli/update_receipt.record_followup prints each as one whole line.
printf '%s\n' "$OUT" | sed -n "s/^.*Update follow-up '\([A-Za-z0-9_]*\)' did not finish: .*$/\1/p" \
| awk '!seen[$0]++' | tr '\n' ' ' | sed 's/ *$//'
}
# The marker (contract C1/C2 + the A7 lock): parsing, identity, claim, delegate,
# release and the Desktop's helper ops live in marker.sh.
MY_PID=$$ MY_CT=""
# shellcheck source=marker.sh
. "$SCRIPT_DIR/marker.sh"
marker_release() { # A7 rule 5, under the lock. Never while a survivor of the
# update still holds the checkout lock (R6): the marker would read free while
# that completion still mutates the checkout. Wait it out; past the bound,
# leave the marker in place -- dead to every reader, and the Desktop's
# reclaim helper refuses to delete it while the checkout lock is held.
# The custodian (line 1, the line-2 refresher) keeps running through that
# wait (an old Desktop would otherwise age-delete the marker 20 minutes
# into it) and stops only once the marker is released.
local waited=0
[ "$MARKER_CLAIMED" -eq 1 ] && [ "$NO_MARKER_CLEANUP" -eq 0 ] || { marker_refresher_stop; return 0; }
while checkout_lock_held; do
[ "$waited" -gt 0 ] || log "a process still holds the checkout update lock; keeping the update marker until it exits"
RELEASE_WAITED=1
if [ "$waited" -ge "$RELEASE_WAIT_S" ]; then
log "WARNING: checkout update lock still held after ${waited}s; leaving the update marker"
marker_refresher_stop
return 0
fi
sleep 1; waited=$((waited + 1))
done
marker_locked marker_release_locked
marker_refresher_stop
MARKER_CLAIMED=0
}
RELEASE_WAIT_S=7200
RELEASE_WAITED=0 # the R6 wait ran: the result written before it carries a stale finished_at
# An older packaged Desktop judges a marker by lines 1 and 2 alone: a dead pid,
# or a line 2 20 minutes old, and it deletes the marker and boots its backend
# -- it never looks at the delegate line or the A7 lock. We can be SIGKILLed
# (no trap runs) while our update still runs or holds the checkout lock, and
# a takeover after that death would leave an instant in which line 1 names a
# dead pid. So before any update work starts, line 1 names a custodian that
# outlives us: this refresher. From then on the marker's identity (MY_PID /
# MY_CT) is the custodian's; it keeps line 2 young (marker_refresh_locked)
# until the release is decided and, if we die first, keeps the marker until
# our update and its survivors are gone (marker_custody). `exec sh` reports
# its pid: bash 3.2 has no BASHPID.
MARKER_REFRESHER=""
marker_refresher_start() {
local ct
[ "$MARKER_CLAIMED" -eq 1 ] && [ -z "$MARKER_REFRESHER" ] || return 0
( trap '' HUP INT QUIT TERM
CUSTODIAN_PID="$(exec sh -c 'echo "$PPID"')"; CUSTODIAN_CT="$(proc_ct "$CUSTODIAN_PID")"
while :; do
for ((_tick = 0; _tick < MARKER_REFRESH_EVERY_S; _tick++)); do
sleep 1; kill -0 $$ 2>/dev/null || marker_custody
done
MY_PID="$CUSTODIAN_PID" MY_CT="$CUSTODIAN_CT" marker_locked marker_refresh_locked
marker_locked marker_refresh_locked # line 1 is still ours: the handover below failed
done ) </dev/null >/dev/null 2>&1 &
MARKER_REFRESHER=$!
ct="$(proc_ct "$MARKER_REFRESHER")"
if [ -n "$ct" ] && marker_locked marker_custody_take_locked "$MARKER_REFRESHER" "$ct"; then
MY_PID="$MARKER_REFRESHER" MY_CT="$ct"
log "update marker names its custodian pid $MY_PID (hand-off pid $$)"
else
log "WARNING: could not name the update marker's custodian; it takes over only if this hand-off dies"
fi
}
marker_refresher_stop() {
[ -n "$MARKER_REFRESHER" ] || return 0
kill -KILL "$MARKER_REFRESHER" 2>/dev/null; wait "$MARKER_REFRESHER" 2>/dev/null
MARKER_REFRESHER=""
}
run_bounded() { # seconds cmd... -> cmd's stdout; 124 when it had to be killed
local secs="$1" out pid i rc
shift
out="$(mktemp "${TMPDIR:-/tmp}/hermes-update-probe.$$.XXXXXX")" || return 1
# Its own process group (pgid = pid), so a timeout kills the probe's whole
# tree -- a hung `hermes` launcher's python child included, not just the shell.
if command -v perl >/dev/null 2>&1; then
perl -e 'setpgrp(0, 0); exec { $ARGV[0] } @ARGV or exit 127' "$@" > "$out" 2>/dev/null < /dev/null &
else
# No perl (minimal images): bash job control gives the job its own group.
set -m; "$@" > "$out" 2>/dev/null < /dev/null & set +m
fi
pid=$!
for ((i = 0; i < secs * 10; i++)); do kill -0 "$pid" 2>/dev/null || break; sleep 0.1; done
if kill -0 "$pid" 2>/dev/null; then
kill -KILL -- "-$pid" 2>/dev/null || kill -KILL "$pid" 2>/dev/null
wait "$pid" 2>/dev/null
rm -f "$out" 2>/dev/null
log "WARNING: probe timed out after ${secs}s: $*"
return 124
fi
wait "$pid"; rc=$?
cat "$out" 2>/dev/null; rm -f "$out" 2>/dev/null
return $rc
}
# Keep a durable signal breadcrumb. A detached hand-off used to leave only the
# generic FINAL_MSG when it was terminated while the updater child was running,
# which erased the one fact needed to diagnose the failure.
TERM_TEARDOWN_IGNORED=0
on_signal() {
local sig="$1" pgid="unknown"
pgid="$(ps -o pgid= -p $$ 2>/dev/null | tr -d '[:space:]')"
# Electron sends one final TERM to the detached hand-off process group while
# quitting, even after the orchestrator has been re-parented to PID 1. That
# TERM is teardown noise, not a user cancellation. Ignore it once only when
# the originating desktop PID is already gone; a later TERM still stops us.
if [ "$sig" = "TERM" ] && [ "$HANDOFF_DAEMONIZED" -eq 1 ] \
&& [ "$TERM_TEARDOWN_IGNORED" -eq 0 ] && ! kill -0 "$DESKTOP_PID" 2>/dev/null; then
TERM_TEARDOWN_IGNORED=1
log "SIGNAL: TERM ignored after desktop teardown pid=$$ ppid=$PPID pgid=${pgid:-unknown} desktopPid=$DESKTOP_PID"
return 0
fi
log "SIGNAL: $sig pid=$$ ppid=$PPID pgid=${pgid:-unknown}"
if handoff_committed; then
# Contract C3: the code is already updated, so the interruption is an owed
# follow-up on an ok result, never "the update failed".
FINAL_CODE=0
DONE_NOTE="Hermes was updated, but the update hand-off was interrupted by $sig before its remaining steps finished. The next launch or hermes update finishes them."
add_warning "handoff" "interrupted by $sig after the update was committed"
exit 0
fi
FINAL_MSG="Update hand-off was interrupted by $sig (pid $$)."
case "$sig" in
HUP) FINAL_CODE=129 ;;
INT) FINAL_CODE=130 ;;
QUIT) FINAL_CODE=131 ;;
TERM) FINAL_CODE=143 ;;
esac
exit "$FINAL_CODE"
}
# ── the commit point (contract C3) ──────────────────────────────────────────
# `hermes update` exits 0 once committed, except an interrupt (130) or a parked
# autostash (1) after the commit point, and a crash of a committed run. Its
# receipt says which: the run's own receipt -- matched by the correlation id we
# hand it, finalized (finished_at set) -- with outcome success | partial (the
# user still has to act) | interrupted (Ctrl-C after the code moved). A
# reconciled "interrupted" record keeps finished_at null, so it never matches.
UPDATE_CORRELATION="${HERMES_UPDATE_CORRELATION_ID:-$RESULT_RUN_ID}"
UPDATE_COMMITTED=0 RECEIPT_OUTCOME=""
receipt_json_field() { # file key -> the top-level string value (json.dumps indent=2 layout)
sed -n "s/^ \"$2\": \"\([A-Za-z0-9._:+-]*\)\",\{0,1\}\$/\1/p" "$1" 2>/dev/null | head -n 1
}
update_committed_after_exit() { # -> 0 iff this run's receipt shows the commit point passed
local root="$HERMES_HOME" f outcome
# hermes_constants.get_default_hermes_root: a <root>/profiles/<name> home files under <root>
[ "$(basename "$(dirname "$root")")" != profiles ] || root="$(dirname "$(dirname "$root")")"
f="$root/logs/update_receipts/latest.json"
[ -f "$f" ] && [ -n "$UPDATE_CORRELATION" ] || return 1
[ "$(receipt_json_field "$f" correlation_id)" = "$UPDATE_CORRELATION" ] || return 1
[ -n "$(receipt_json_field "$f" finished_at)" ] || return 1
outcome="$(receipt_json_field "$f" outcome)"
case "$outcome" in success|partial|interrupted) RECEIPT_OUTCOME="$outcome"; return 0 ;; esac
return 1
}
handoff_committed() { # -> 0 iff the update itself is committed (whatever happens to us now)
[ "$UPDATE_COMMITTED" -eq 0 ] || return 0
[ -n "${CODE:-}" ] || return 1
[ "$CODE" -eq 0 ] || { [ "$CODE" -ne 2 ] && update_committed_after_exit; }
}
trap 'on_signal HUP' HUP
trap 'on_signal INT' INT
trap 'on_signal QUIT' QUIT
trap 'on_signal TERM' TERM
# ── shim ────────────────────────────────────────────────────────────────────
json_escape() { # JSON string escape: \ " \n \r \t, every other control char (< 0x20) as \u00XX
local s=${1//\\/\\\\} o ch hex
s=${s//\"/\\\"}
s=${s//$'\n'/\\n}
s=${s//$'\r'/\\r}
s=${s//$'\t'/\\t}
if [[ "$s" == *[[:cntrl:]]* ]]; then # a raw control char is invalid JSON (git/ps output can carry ESC, BEL...)
for o in 001 002 003 004 005 006 007 010 013 014 016 017 020 021 022 023 024 025 026 027 \
030 031 032 033 034 035 036 037; do
printf -v ch "\\$o"; printf -v hex '\\u%04x' "$((8#$o))"
s=${s//"$ch"/"$hex"}
done
fi
printf '%s' "$s"
}
notify_fallback() { # status message — renderer-free recovery surface.
# Fires only when there is no shim window. BEST-EFFORT immediate channel:
# each rung requires EXECUTION acceptance, not existence — notify-send's
# exit code is its acceptance (fire-and-forget), zenity/kdialog must
# survive their first second (a dialog that dies instantly had no display
# and must not eat the message). The GUARANTEED channel is the result
# file: a manual/error outcome is durably marked and the next Desktop
# boot surfaces it in a dialog (handoff-result.ts + main.ts).
case "$1" in manual|error) ;; *) return 0 ;; esac
if [ "$(uname)" = "Darwin" ]; then
/usr/bin/osascript -e "display notification \"$(printf '%s' "$2" | sed 's/"/\\"/g')\" with title \"Hermes update\"" 2>/dev/null && return 0
else
if command -v notify-send >/dev/null 2>&1; then
notify-send -u critical "Hermes update" "$2" 2>/dev/null && return 0
fi
local p
if command -v zenity >/dev/null 2>&1; then
zenity --warning --title="Hermes update" --text="$2" 2>/dev/null &
p=$!; sleep 1
kill -0 "$p" 2>/dev/null && return 0
wait "$p" 2>/dev/null
fi
if command -v kdialog >/dev/null 2>&1; then
kdialog --title "Hermes update" --sorry "$2" 2>/dev/null &
p=$!; sleep 1
kill -0 "$p" 2>/dev/null && return 0
wait "$p" 2>/dev/null
fi
fi
# No immediate surface landed. The durable channel takes over: the result
# is marked manual/failed and the next boot shows it in a real dialog.
log "NOTICE: no notification surface accepted; outcome reaches the user via the result dialog on next launch: $2"
}
write_status() { # status message -- atomic replace; the server reads per poll
printf '{"status":"%s","message":"%s"}' "$(json_escape "$1")" "$(json_escape "$2")" > "$STATUS.tmp" \
&& mv -f "$STATUS.tmp" "$STATUS" 2>/dev/null || true
}
publish_stage() { # a long wait the orchestrator is already gating on. No poll
# beat (that would add a second per stage to every update) and no
# notification fallback (there is nothing here for the user to act on).
write_status "running" "$1"
}
publish() { # terminal event -- the page must render it before teardown
write_status "$1" "$2"
[ -n "$UI_SERVER_PID" ] && sleep 1 # one poll beat to render the state
[ -z "$UI_SERVER_PID" ] && notify_fallback "$1" "$2"
}
find_browser() {
local c
# No Microsoft Edge and no Brave, on purpose. Edge's OS-level
# Microsoft-account integration signs a fresh throwaway profile into the
# user's MSA and renders its own "syncing your data" notification — MSA
# email included — inside this window that is titled "Hermes" (#88410).
# Brave paints its own P3A privacy-notice bar over the progress page in
# the same window — cramped to unreadability at the shim's small size
# (#88682). The throwaway --user-data-dir below cannot block either; the
# remaining Chromium-family browsers carry no first-run chrome of their
# own into a fresh profile.
#
# No browser at all on macOS. A second --user-data-dir is a second instance
# of the same bundle, and the Dock records every one as a new recent-app
# tile it never merges with the pinned browser: one more duplicate Chrome
# icon per update (#96374). A stable profile would not help (still a second
# instance). notify_fallback + the next-boot result dialog carry the outcome.
[ "$(uname)" = "Darwin" ] && return
for c in google-chrome google-chrome-stable chromium chromium-browser; do
command -v "$c" 2>/dev/null && return
done
}
# The shim is decoration; launching a browser the user does NOT use is not.
# A Safari/Firefox/Helium user who merely has Chrome installed watched Chrome
# open on every update — a "why is Chrome opening?" surprise (community
# report, Aug 2026). Only render the shim when the system DEFAULT browser is
# itself Chromium-family; otherwise skip the window and let notify_fallback +
# the durable result file carry the outcome. Best-effort on purpose: any
# detection failure keeps today's behavior (0 = allowed).
default_browser_is_chromium() {
local handler=""
# Linux only (find_browser never picks one on macOS). xdg-settings is the
# authority; missing tool = permissive.
command -v xdg-settings >/dev/null 2>&1 || return 0
handler="$(xdg-settings get default-web-browser 2>/dev/null)" || return 0
[ -n "$handler" ] || return 0
case "$handler" in
*chrome*|*chromium*|*Chrome*|*Chromium*) return 0 ;;
*) return 1 ;;
esac
}
start_status_panel() { # the macOS no-browser shim: osascript (JXA) panel.
# Best-effort by design: osascript missing or the panel exiting instantly
# (syntax, headless session) just means no UI, exactly as before. The panel
# polls $STATUS itself and self-exits after a terminal state, so this pid
# only needs killing on OUR early teardown paths.
local py="$1" panel="$SCRIPT_DIR/update-panel.js"
[ -n "$py" ] || py="/usr/bin/python3" # unused by osascript; keeps the wrapper shape
"$py" -c 'import os, signal, sys; os.setsid(); signal.signal(signal.SIGTERM, signal.SIG_IGN); os.execv(sys.argv[1], sys.argv[1:])' \
/usr/bin/osascript -l JavaScript "$panel" "$STATUS" >>"$LOG" 2>&1 &
UI_PANEL_PID=$!
sleep 1
kill -0 "$UI_PANEL_PID" 2>/dev/null || { UI_PANEL_PID=""; return; }
log "shim: status panel pid=$UI_PANEL_PID"
}
start_ui() {
[ "$NO_UI" -eq 1 ] && return
local html="$SCRIPT_DIR/ui.html" py browser port="" i
py="${INSTALL_ROOT:+$INSTALL_ROOT/venv/bin/python3}"
[ -x "${py:-/nonexistent}" ] || py="$(command -v python3 2>/dev/null)"
browser="$(find_browser)"
if [ -n "$browser" ] && ! default_browser_is_chromium; then
log "shim: default browser is not Chromium-family; skipping UI window"
browser=""
fi
if [ "$(uname)" = "Darwin" ] && [ -z "$browser" ] && [ -f "$SCRIPT_DIR/update-panel.js" ]; then
# No Chromium renderer may host ui.html (Safari/Firefox default, or no
# Chrome): draw the same progress as a native panel instead. Reads the
# same $STATUS JSON — no server, no browser, no other-app scripting.
start_status_panel "$py"
[ -n "$UI_PANEL_PID" ] && return
log "shim: status panel did not start; continuing without UI"
fi
{ [ -f "$html" ] && [ -n "$py" ] && [ -n "$browser" ]; } || { log "shim: no renderer; skipping UI"; return; }
UI_PROFILE_DIR="$(mktemp -d "${TMPDIR:-/tmp}/hermes-update-ui-$$-XXXXXXXX")" || {
UI_PROFILE_DIR=""
log "shim: could not allocate a browser profile; skipping UI"
return
}
publish_stage ""
# The Desktop's final teardown targets the updater process group. Put both
# UI processes in their own sessions so neither the HTTP server nor a Chrome
# renderer becomes collateral damage (Chrome surfaces that renderer death as
# an "Aw, Snap!" page with error code 15 even while /progress still returns
# HTTP 200). The Python wrapper immediately execs the real process, so $!
# remains the PID that stop_ui can terminate.
# TERM/HUP stay IGNORED in the server (SIG_IGN survives execv): a stray
# teardown TERM killed the shim ~1s into `hermes update` (2026-08-14 16:44,
# window showed ERR_CONNECTION_REFUSED for the whole run; upstream #66753).
# stop_ui ends the server with SIGKILL instead — it is stateless HTTP.
"$py" -c 'import os, signal, sys; os.setsid(); signal.signal(signal.SIGTERM, signal.SIG_IGN); signal.signal(signal.SIGHUP, signal.SIG_IGN); os.execv(sys.argv[1], sys.argv[1:])' \
"$py" "$SCRIPT_DIR/serve-ui.py" "$html" "$STATUS" "$STARTED_AT" "$$" > "$STATUS.port" 2>>"$LOG" &
UI_SERVER_PID=$!
for i in $(seq 1 10); do
port="$(tr -cd '0-9' < "$STATUS.port" 2>/dev/null)"
[ -n "$port" ] && break
sleep 0.2
done
[ -n "$port" ] || { kill -9 "$UI_SERVER_PID" 2>/dev/null; UI_SERVER_PID=""; return; }
# Throwaway profile: new window/process we own; user's browser untouched.
"$py" -c 'import os, signal, sys; os.setsid(); signal.signal(signal.SIGTERM, signal.SIG_DFL); os.execv(sys.argv[1], sys.argv[1:])' \
"$browser" --app="http://127.0.0.1:$port/" --user-data-dir="$UI_PROFILE_DIR" \
--no-first-run --no-default-browser-check --window-size=280,320 >/dev/null 2>&1 &
UI_BROWSER_PID=$!
log "shim: app window on 127.0.0.1:$port"
}
stop_ui() { # error/manual outcomes keep the window up briefly so a watching
# user can read the message, then close it. The outcome is also durably
# written to the result file and surfaced in a dialog on the next Desktop
# boot (handoff-result.ts), so the shim window never lingers indefinitely —
# before this, each aborted update left another orphan browser window on
# screen until the user closed it by hand.
if [ "${1:-}" = "leave-window" ]; then
sleep "${HERMES_UPDATE_SHIM_GRACE_SECONDS:-15}"
fi
if [ -n "$UI_SERVER_PID" ]; then
# The server ignores TERM/HUP (see start_ui) — KILL is its off switch.
{ kill -9 "$UI_SERVER_PID" && wait "$UI_SERVER_PID"; } 2>/dev/null
fi
if [ -n "$UI_BROWSER_PID" ]; then
{ kill "$UI_BROWSER_PID" && wait "$UI_BROWSER_PID"; } 2>/dev/null
fi
if [ -n "$UI_PANEL_PID" ]; then
# The panel ignores TERM (SIG_IGN survives execv, same contract as the
# HTTP server) — KILL is its off switch. leave-window grace is the panel's
# own delay terminal-state sleep, so we just end it.
{ kill -9 "$UI_PANEL_PID" && wait "$UI_PANEL_PID"; } 2>/dev/null
fi
if [ -n "$UI_PROFILE_DIR" ]; then
rm -rf "$UI_PROFILE_DIR" 2>/dev/null || true
UI_PROFILE_DIR=""
fi
UI_SERVER_PID="" UI_BROWSER_PID="" UI_PANEL_PID=""
}
# ── relaunch ────────────────────────────────────────────────────────────────
# Linux relaunch gate -- an exact port of the deleted update-relaunch.ts
# decision (#45205/#37541), not a loosened rewrite:
# * the running binary must live under THIS checkout's rebuilt
# apps/desktop/release/linux-unpacked (anchored, path-segment-aware --
# proof the update we just ran replaced the selected executable);
# * chrome-sandbox ABSENT is fine (namespace-sandbox build; nothing to
# block on), PRESENT means root-owned AND setuid or Electron refuses to
# boot ("quit and never came back");
# * a user sandbox opt-out (ELECTRON_DISABLE_SANDBOX=1/true in our
# inherited env, --no-sandbox among the replayed launch args, or the
# Desktop vouching via --sandbox-fallback) makes the relaunch safe
# despite a failed preflight.
# Outcomes mirror decideRelaunchOutcome: relaunch | skew | manual.
GATE="" GATE_MSG=""
linux_gate() {
local unpacked="" sb arg cand
# Canonicalise both sides before the prefix compare. On some distros
# (e.g. Fedora/ostree) /home is a symlink to /var/home; the relaunch
# target is read from /proc/<pid>/exe, which the kernel canonicalises
# through symlinks, while INSTALL_ROOT keeps the original spelling —
# the raw prefix match then false-gates as "skew" and tells the user
# to reinstall an app that is fine. readlink -m canonicalises existing
# leading components without requiring the full path to exist (unlike
# -f); a no-op when both sides are already spelled the same.
# electron-builder names the unpacked dir `linux-unpacked` on x86_64 but
# `linux-<arch>-unpacked` on every other arch (linux-arm64-unpacked is
# what ARM ships). Hardcoding the x86_64 name made a healthy ARM install
# false-gate as "skew" on every update (#94703). Resolve the dir the
# running binary actually lives in; fall back to the first
# linux*-unpacked dir present when the target doesn't match any (the
# skew case below then rejects it).
[ -n "$RELAUNCH_TARGET" ] && RELAUNCH_TARGET="$(readlink -m -- "$RELAUNCH_TARGET")"
for cand in "$INSTALL_ROOT"/apps/desktop/release/linux*-unpacked; do
[ -d "$cand" ] || continue
cand="$(readlink -m -- "$cand")"
case "$RELAUNCH_TARGET" in
"$cand"/*) unpacked="$cand"; break ;;
esac
[ -n "$unpacked" ] || unpacked="$cand"
done
[ -n "$unpacked" ] || unpacked="$(readlink -m -- "$INSTALL_ROOT/apps/desktop/release/linux-unpacked")"
case "$RELAUNCH_TARGET" in
"$unpacked"/*) ;;
*) GATE=skew GATE_MSG="Backend updated, but the desktop app package (AppImage/deb/rpm) was not changed. Update or reinstall it to match."; return ;;
esac
sb="$unpacked/chrome-sandbox"
if [ ! -e "$sb" ]; then GATE=relaunch; return; fi
if [ -u "$sb" ] && [ "$(stat -c %u "$sb" 2>/dev/null)" = "0" ]; then GATE=relaunch; return; fi
# Namespace sandbox usable => Electron never consults the setuid helper,
# so a non-root chrome-sandbox does not block relaunch (mirrors the
# _desktop_linux_userns_sandbox_available() probe in hermes_cli/main.py).
if unshare --user --map-root-user true 2>/dev/null; then GATE=relaunch; return; fi
case "${ELECTRON_DISABLE_SANDBOX:-}" in 1|true|TRUE|True) GATE=relaunch; return ;; esac
[ "$SANDBOX_FALLBACK" -eq 1 ] && { GATE=relaunch; return; }
for arg in ${RELAUNCH_ARGS[@]+"${RELAUNCH_ARGS[@]}"}; do
[ "$arg" = "--no-sandbox" ] && { GATE=relaunch; return; }
done
GATE=manual GATE_MSG="Update complete, but the rebuilt app can't relaunch itself (its sandbox helper needs root ownership). Reopen Hermes to finish."
}
mac_bundle_recover() { # bundle path -- finish or roll back an interrupted swap
# Start-of-run recovery for BOTH bundle swappers (this script's .old/.new and
# `hermes desktop`'s .hermes-update-old/-new). The update marker serialises
# swappers, so anything left here belongs to a dead run. A missing bundle
# with its aside copy present means the swap died between its two renames:
# put the previous app back (the staged copy may be partial). A present
# bundle makes every aside/staged copy a leftover.
local target="$1" aside staged
[ -n "$target" ] || return 0
for aside in "$target.old" "$target.hermes-update-old"; do
if [ ! -e "$target" ] && [ -d "$aside" ]; then
if mv "$aside" "$target" 2>/dev/null; then
log "recovered an interrupted app swap: restored $target from $aside"
else
log "WARNING: could not restore $target from $aside"
fi
fi
done
[ -d "$target" ] || return 0
for staged in "$target.old" "$target.new" "$target.hermes-update-old" "$target.hermes-update-new"; do
if [ -e "$staged" ]; then
rm -rf "$staged" 2>/dev/null && log "removed a leftover $staged"
fi
done
}
# Test seams of mac_swap, inert in a real run: --self-test-swap-interrupt
# points the copy at `cp -R` where ditto is absent (Linux) and names the step
# boundary at which the swapper SIGSTOPs itself so the self-test can SIGKILL it
# there (or resume it and kill it mid-copy / mid-cleanup).
MAC_DITTO=/usr/bin/ditto SWAP_PAUSE_AT=""
swap_checkpoint() { # step
[ "$SWAP_PAUSE_AT" = "$1" ] || return 0
kill -STOP "$(exec sh -c 'echo "$PPID"')" # this (sub)shell: bash 3.2 has no BASHPID
}
mac_swap() {
local rebuilt="" c
for c in "$INSTALL_ROOT/apps/desktop/release/mac-arm64/Hermes.app" \
"$INSTALL_ROOT/apps/desktop/release/mac/Hermes.app"; do
[ -d "$c" ] && { rebuilt="$c"; break; }
done
# Transactional swap: stage a full copy, move the old bundle aside, move
# the copy in. Every step checked; a failed final move ROLLS BACK so the
# user always has a launchable app, and the result file tells the truth.
# The code update already committed, so every failure here is a follow-up
# warning on an ok:true result, never "still on the previous version".
if [ "$FINAL_CODE" -eq 0 ] && [ "$APP_REBUILD_FAILED" -eq 0 ] && [ -n "$rebuilt" ] \
&& [ -d "$RELAUNCH_TARGET" ] && [ "$rebuilt" != "$RELAUNCH_TARGET" ]; then
publish_stage "Installing the new app"
mac_bundle_recover "$RELAUNCH_TARGET"
swap_checkpoint start
if ! "$MAC_DITTO" "$rebuilt" "$RELAUNCH_TARGET.new"; then
rm -rf "$RELAUNCH_TARGET.new" 2>/dev/null || true
DONE_NOTE="Hermes was updated, but the new app could not be staged; the previous app was kept. Run the update again."
add_warning "app-swap" "bundle copy failed; previous app kept"
return
fi
# The two renames are one critical section: a signal between them would
# leave no app at the user's path. Defer HUP/INT/QUIT/TERM across it;
# SIGKILL there is finished by mac_bundle_recover on the next run.
trap '' HUP INT QUIT TERM
swap_checkpoint staged
if ! mv "$RELAUNCH_TARGET" "$RELAUNCH_TARGET.old"; then
rm -rf "$RELAUNCH_TARGET.new" 2>/dev/null || true
DONE_NOTE="Hermes was updated, but the new app could not replace the old one; the previous app was kept. Run the update again."
add_warning "app-swap" "could not move the old bundle aside; previous app kept"
elif swap_checkpoint aside; ! mv "$RELAUNCH_TARGET.new" "$RELAUNCH_TARGET"; then
if mv "$RELAUNCH_TARGET.old" "$RELAUNCH_TARGET"; then
rm -rf "$RELAUNCH_TARGET.new" 2>/dev/null || true
DONE_NOTE="Hermes was updated, but the new app could not be installed; the previous app was restored. Run the update again."
add_warning "app-swap" "bundle install failed; rolled back to the previous app"
else
DONE_NOTE="Hermes was updated, but installing the new app failed and the previous app could not be restored. Reinstall Hermes (the rebuilt app is at $rebuilt)."
add_warning "app-swap" "bundle install failed AND rollback failed"
fi
else
swap_checkpoint installed
rm -rf "$RELAUNCH_TARGET.old" 2>/dev/null || true
log "swapped app bundle"
fi
trap 'on_signal HUP' HUP; trap 'on_signal INT' INT; trap 'on_signal QUIT' QUIT; trap 'on_signal TERM' TERM
fi
}
deliver_outcome() { # the truth-determining half: swap bundles / gate the relaunch
[ -n "$RELAUNCH_TARGET" ] || return 0
if [ "$(uname)" = "Darwin" ]; then
mac_swap
else
linux_gate
if [ "$GATE" != "relaunch" ] && [ "$FINAL_CODE" -eq 0 ]; then
DONE_NOTE="${DONE_NOTE:+$DONE_NOTE }$GATE_MSG"
add_warning "relaunch" "$GATE: $GATE_MSG"
fi
fi
}
launch_app() { # attempted BEFORE the terminal event (launch acceptance is
# part of the outcome — gille's review). Returns nonzero when a launch
# was due but did not verifiably happen; caller downgrades to manual.
[ -n "$RELAUNCH_TARGET" ] || return 0
if [ "$DESKTOP_PID" -gt 0 ] 2>/dev/null && ident_alive "$DESKTOP_PID" "$DESKTOP_CT"; then
# The Desktop never quit (exit 4) or refused us: it is still open, so a
# second instance would only fight its single-instance lock.
log "relaunch skipped: the Desktop (pid $DESKTOP_PID) is still running"
return 0
fi
if [ "$(uname)" = "Darwin" ]; then
# A supplied target that no longer exists is a REJECTED launch (the
# swap failed badly or the bundle vanished) — not "no launch due".
[ -d "$RELAUNCH_TARGET" ] || { log "WARNING: relaunch target missing: $RELAUNCH_TARGET"; return 1; }
/usr/bin/xattr -dr com.apple.quarantine "$RELAUNCH_TARGET" 2>/dev/null || true
# `open` talks to launchd and FAILS LOUDLY on a broken/unlaunchable
# bundle — its exit code IS launch acceptance here.
/usr/bin/open "$RELAUNCH_TARGET" || { log "WARNING: open rejected the app"; return 1; }
elif [ "$GATE" = "relaunch" ]; then
# setsid only proves the wrapper shell started, so verify acceptance:
# spawn, then confirm the child is still alive shortly after — an
# immediate exec failure (ENOENT, ELF mismatch, dead sandbox) dies
# within the window and downgrades to manual instead of lying.
(cd "${RELAUNCH_CWD:-/}" 2>/dev/null || cd /
# The relaunched app must not inherit the hand-off's update env.
env -u HERMES_UPDATE_STATUS_FILE -u HERMES_UPDATE_STARTED_AT -u HERMES_UPDATE_HANDOFF_PID -u PYTHONUNBUFFERED \
setsid "$RELAUNCH_TARGET" ${RELAUNCH_ARGS[@]+"${RELAUNCH_ARGS[@]}"} >/dev/null 2>&1 &
echo $! > "$STATUS.launchpid") || { log "WARNING: relaunch spawn failed"; return 1; }
local lp
lp="$(cat "$STATUS.launchpid" 2>/dev/null)"; rm -f "$STATUS.launchpid" 2>/dev/null
[ -n "$lp" ] || { log "WARNING: relaunch pid unknown"; return 1; }
sleep 1.5
kill -0 "$lp" 2>/dev/null || { log "WARNING: relaunched app exited immediately"; return 1; }
fi
}
MANUAL=0 # 1 = update landed but the user must act (result protocol field)
write_result() { # atomic (tmp + rename); run_id survives marker line-2 heartbeats
local w="" item
for item in ${WARNINGS[@]+"${WARNINGS[@]}"}; do
w="$w${w:+,}\"$(json_escape "$item")\""
done
printf '{"ok":%s,"exit_code":%s,"manual":%s,"message":"%s","branch":"%s","channel":"%s","run_id":"%s","started_at":%s,"finished_at":%s,"warnings":[%s]}' \
"$([ "$FINAL_CODE" -eq 0 ] && echo true || echo false)" "$FINAL_CODE" \
"$([ "$MANUAL" -eq 1 ] && echo true || echo false)" \
"$(json_escape "$FINAL_MSG")" "$(json_escape "$BRANCH")" "$(json_escape "$CHANNEL")" \
"$RESULT_RUN_ID" "${STARTED_AT:-0}" "$(date +%s)" "$w" \
> "$RESULT.$$.tmp" 2>/dev/null && mv -f "$RESULT.$$.tmp" "$RESULT" 2>/dev/null
rm -f "$RESULT.$$.tmp" 2>/dev/null || true
}
add_warning() { # step reason -- post-commit follow-up failed; the update still counts
WARNINGS+=("$1: $2")
log "WARNING ($1): $2"
}
finish() {
# Ordering (gille's reviews, both rounds):
# 1. deliver the outcome (swap/gate) so the truth exists;
# 2. durable result + marker removal (the relaunched app consumes the
# result on boot and must not park on our marker — this must be on
# disk BEFORE any launch attempt);
# 3. attempt the launch and require ACCEPTANCE;
# 4. only then the terminal shim event — done means "the app is coming
# back", manual means "it is not, here's what to do", error is error.
# A rejected launch rewrites the result (nothing consumed it — the app
# never started) so the next boot tells the truth too.
deliver_outcome
[ "$FINAL_CODE" -eq 0 ] && [ -n "$DONE_NOTE" ] && { FINAL_MSG="$DONE_NOTE"; MANUAL=1; }
write_result
marker_release
# The R6 wait can last hours, and the Desktop drops a non-manual result whose
# finished_at is 30 minutes old: publish it again with the real finish time
# (unless something already consumed it).
if [ "$RELEASE_WAITED" -eq 1 ] && [ -f "$RESULT" ]; then write_result; fi
if [ "$FINAL_CODE" -ne 0 ]; then
publish "error" "$FINAL_MSG"; stop_ui leave-window
launch_app || true # error path still tries to bring the app back
rm -f "$STATUS" "$STATUS.tmp" "$STATUS.port" 2>/dev/null || true
return
fi
if [ -n "$DONE_NOTE" ]; then
if [ "$GATE" != "skew" ] && [ "$GATE" != "manual" ]; then
# A kept/rolled-back mac bundle or a failed post-commit follow-up: bring
# the app back up; the note still tells the user what to re-run. A gated
# linux outcome (skew/manual) skips the launch BY DESIGN.
if ! launch_app; then
# Even the kept bundle didn't come back: the durable message must
# carry BOTH facts (update ok, previous app not reopened).
FINAL_MSG="$DONE_NOTE Hermes also could not reopen itself - open it manually."
write_result
fi
fi
publish "manual" "$FINAL_MSG"; stop_ui leave-window
elif launch_app; then
publish "done" ""; stop_ui
else
# Launch was due and did not land. Downgrade: truthful result for the
# next boot, manual state held on screen now.
FINAL_MSG="Update complete. Reopen Hermes to finish (it could not restart itself)."
MANUAL=1
write_result
publish "manual" "$FINAL_MSG"; stop_ui leave-window
fi
rm -f "$STATUS" "$STATUS.tmp" "$STATUS.port" 2>/dev/null || true
}
trap finish EXIT
# ── legacy macOS TCC anchor self-heal (#95759) ──────────────────────────────
# The reverted TCC interpreter anchor (#95425/#95541) left some installs with
# a real-file `venv/bin/python` copy plus a `.tcc-anchor-source` marker, and
# `python3`/`python3.N` aliases that die at interpreter init ("No module
# named 'encodings'"). On those installs EVERY normal CLI entrypoint is dead
# (`venv/bin/hermes` has a `python3` shebang), so no Python-side heal —
# doctor OR in-update — can ever run. This shell is the last surface that
# still executes, so the heal lives here (recovery design after @aeonsong's
# #96231; heal-point observation by @ahrazzle / @tokenfires on #95759).
#
# Ping-pong coherence with the re-landed forward anchor
# (hermes_cli/macos_tcc_anchor.ensure_tcc_anchor, which re-anchors whenever
# `venv/bin/python` is a uv-managed symlink): this heal is gated on the
# interpreter FAILING its boot probe, so a healthy anchored install is never
# touched; and when it does restore symlinks, the very `hermes update` run it
# unblocks re-installs a boot-gated healthy anchor — a one-shot convergence,
# not a loop.
tcc_probe_python() { # interpreter path → 0 iff it boots a real stdlib.
# PYTHONHOME/PYTHONPATH are scrubbed: an inherited PYTHONHOME papers over
# exactly the prefix-resolution failure this probe exists to detect.
[ -x "$1" ] || return 1
env -u PYTHONHOME -u PYTHONPATH -u PYTHONSTARTUP -u __PYVENV_LAUNCHER__ \
"$1" -c 'import encodings' >/dev/null 2>&1
}
TCC_HEAL_STATE="not-run"
tcc_heal_rollback() { # restore every .tcc-heal-old.$$ backup in a bin dir
local b
for b in "$1"/*.tcc-heal-old.$$; do
[ -e "$b" ] || [ -L "$b" ] || continue
mv -f "$b" "${b%.tcc-heal-old.$$}" 2>/dev/null || true
done
}
tcc_heal_cleanup() { # heal landed: drop the backups
local b
for b in "$1"/*.tcc-heal-old.$$; do
[ -e "$b" ] || [ -L "$b" ] || continue
rm -f "$b" 2>/dev/null || true
done
}
tcc_alias_names() { # existing python3 / python3.N entries in a bin dir
local a
for a in "$1"/python3 "$1"/python3.*; do
[ -e "$a" ] || [ -L "$a" ] || continue
case "${a##*/}" in
python3|python3.[0-9]|python3.[0-9][0-9]) printf '%s\n' "$a" ;;
esac
done
}
tcc_anchor_heal() { # $1 = venv bin dir. 0 iff python3 boots on exit.
local bin="$1" marker src alias staged
local py="$bin/python" py3="$bin/python3"
if tcc_probe_python "$py3"; then TCC_HEAL_STATE="healthy"; return 0; fi
marker="$bin/.tcc-anchor-source"
[ -f "$marker" ] || { TCC_HEAL_STATE="no-marker"; return 1; }
src="$(head -1 "$marker" 2>/dev/null)"
case "$src" in
"$bin"/*) TCC_HEAL_STATE="unsafe-source"; return 1 ;;
/*) ;;
*) TCC_HEAL_STATE="invalid-marker"; return 1 ;;
esac
if tcc_probe_python "$py"; then
# #95541 alias-brick: the anchored copy itself boots; only the aliases
# are dead. Aliases over a real-file anchor must be REAL FILES (hard
# link, else copy) — an alias *symlink* onto the copy is the exact
# crash shape being healed here.
TCC_HEAL_STATE="healed-aliases"
while IFS= read -r alias; do
[ -n "$alias" ] || continue
mv "$alias" "$alias.tcc-heal-old.$$" 2>/dev/null \
|| { tcc_heal_rollback "$bin"; TCC_HEAL_STATE="failed"; return 1; }
if ! { ln "$py" "$alias" 2>/dev/null || cp -p "$py" "$alias" 2>/dev/null; }; then
tcc_heal_rollback "$bin"; TCC_HEAL_STATE="failed"; return 1
fi
done <<EOF_ALIASES
$(tcc_alias_names "$bin")
EOF_ALIASES
elif [ -x "$src" ] && tcc_probe_python "$src"; then
# Full restore to the pre-anchor layout: python → symlink to the
# marker-recorded store interpreter, aliases → symlinks to python.
TCC_HEAL_STATE="healed-symlinks"
mv "$py" "$py.tcc-heal-old.$$" 2>/dev/null \
|| { TCC_HEAL_STATE="failed"; return 1; }
if ! ln -s "$src" "$py" 2>/dev/null; then
tcc_heal_rollback "$bin"; TCC_HEAL_STATE="failed"; return 1
fi
while IFS= read -r alias; do
[ -n "$alias" ] || continue
staged="$alias.tcc-heal-new.$$"
mv "$alias" "$alias.tcc-heal-old.$$" 2>/dev/null \
|| { tcc_heal_rollback "$bin"; TCC_HEAL_STATE="failed"; return 1; }
if ! { ln -s python "$staged" 2>/dev/null && mv "$staged" "$alias" 2>/dev/null; }; then
rm -f "$staged" 2>/dev/null
tcc_heal_rollback "$bin"; TCC_HEAL_STATE="failed"; return 1
fi
done <<EOF_ALIASES
$(tcc_alias_names "$bin")
EOF_ALIASES
else
# Recorded source gone or itself unbootable (the vanished-uv-store
# class from #95759): fail closed, touch nothing.
TCC_HEAL_STATE="source-missing"; return 1
fi
if tcc_probe_python "$py3"; then
if [ "$TCC_HEAL_STATE" = "healed-symlinks" ]; then
# Marker asserts the anchored layout; the symlink layout is done
# with it. (The alias-heal branch KEEPS it: real-file python +
# real-file aliases is exactly the layout ensure_tcc_anchor marks.)
rm -f "$marker" 2>/dev/null || true
fi
tcc_heal_cleanup "$bin"
return 0
fi
tcc_heal_rollback "$bin"
TCC_HEAL_STATE="failed"
return 1
}
tcc_pick_update_invoke() { # sets UPDATE_INVOKE; safety net past a failed heal
# Last-resort class: aliases still dead but the anchored copy boots. The
# launchd gateway proves `venv/bin/python -m hermes_cli.main` works when
# every alias entrypoint is bricked — drive the update the same way.
local bin="$1"
UPDATE_INVOKE=("$bin/hermes")
if ! tcc_probe_python "$bin/python3" && tcc_probe_python "$bin/python"; then
UPDATE_INVOKE=("$bin/python" -m hermes_cli.main)
fi
}
# ── self-tests: no update, touch nothing ────────────────────────────────────
if [ "$SELF_TEST_TCC_HEAL" -eq 1 ]; then
# Runs the REAL heal + invoke selection against --install-root and reports;
# tests/scripts/desktop_update/test_desktop_update_tcc_heal.py drives the state matrix through it.
trap - EXIT
tcc_anchor_heal "$INSTALL_ROOT/venv/bin" || true
tcc_pick_update_invoke "$INSTALL_ROOT/venv/bin"
echo "state=$TCC_HEAL_STATE invoke=${UPDATE_INVOKE[*]}"
exit 0
fi
if [ "$SELF_TEST_SWAP" -eq 1 ]; then
# Kills the REAL mac_swap at every step against a fixture bundle tree and
# checks the REAL mac_bundle_recover; never touches an installed app.
# tests/scripts/desktop_update/test_desktop_update_mac_swap_interrupt.py runs
# it on Linux and on the macOS lane of tests-os.yml.
trap - EXIT
# shellcheck source=swap-selftest.sh
. "$SCRIPT_DIR/swap-selftest.sh"
swap_selftest
exit $?
fi
if [ "$SELF_TEST_GATE" -eq 1 ]; then
# Prints the gate decision for the given --install-root/--relaunch-target
# and exits; scripts/desktop-update/repro.sh gate asserts the matrix.
trap - EXIT
linux_gate
echo "$GATE${GATE_MSG:+:$GATE_MSG}"
exit 0
fi
if [ "$SELF_TEST_UI" -eq 1 ]; then
start_ui
log "SELF-TEST: shim simulation (no update will run)"
sleep "${HERMES_SELFTEST_HOLD_SECONDS:-6}"
RELAUNCH_TARGET=""
if [ -n "${HERMES_SELFTEST_FAIL:-}" ]; then FINAL_MSG="self-test error state"
else FINAL_CODE=0 FINAL_MSG="self-test complete"; fi
exit "$FINAL_CODE"
fi
# ── the Desktop's marker helper: verdict on stdout, nothing else ────────────
if [ -n "$MARKER_OP" ]; then
trap - EXIT HUP INT QUIT TERM
marker_op "$MARKER_OP"
exit $?
fi
# ── the actual job ──────────────────────────────────────────────────────────
# Everything below is ONE brace group: bash parses a compound command whole
# before running it, so `hermes update` rewriting this very file (the script
# lives in the checkout it updates) can never feed the rest of the run from a
# shifted offset of the new text.
{
# Electron's macOS quit teardown sends SIGTERM to its still-parented updater
# child on this machine. `detached + unref` gives the child a process group but
# does not re-parent it before `before-quit` runs, so the hand-off consistently
# died two seconds after starting `hermes update`. Re-exec through a one-shot
# setsid child and let this direct Electron child exit first. The real
# orchestrator is then owned by launchd (PPID 1) and is outside Electron's quit
# teardown, while retaining the same marker/result protocol.
if [ "$HANDOFF_DAEMONIZED" -ne 1 ]; then
# This launcher is disposable. In particular it must not run finish() on
# EXIT: that would publish a false failure and relaunch Hermes while the
# re-parented orchestrator is only just starting.
trap - EXIT HUP INT QUIT TERM
# --daemonized must precede ORIGINAL_ARGS, not follow it: ORIGINAL_ARGS may
# contain a `--` separator (Linux relaunch args), and anything appended
# after that point is swallowed into RELAUNCH_ARGS instead of being parsed
# as a flag. Appending here previously left HANDOFF_DAEMONIZED unset on
# every re-exec, causing this block to re-fire forever (self-exec loop,
# unbounded argv growth) whenever relaunch args were present.
# nohup leaves SIGHUP ignored, and an ignored-at-entry signal can never be
# re-trapped by bash, so every child (hermes update, gateways it starts, the
# relaunched app) inherited it. The daemon has no terminal after setsid:
# restore the default before exec.
/usr/bin/nohup /usr/bin/python3 -c '
import os, signal, sys
env = os.environ.copy()
os.setsid()
signal.signal(signal.SIGHUP, signal.SIG_DFL)
os.execve("/bin/bash", ["/bin/bash", sys.argv[1], *sys.argv[2:]], env)
' "$SCRIPT_DIR/posix.sh" --daemonized "${ORIGINAL_ARGS[@]}" >/dev/null 2>&1 &
DAEMON_PID=$!
# Contract C2: the hand-off has started only once the daemon has claimed
# the marker. Report a daemon that never got that far (no /usr/bin/python3,
# a refused claim) as a failed launch so the Desktop stays up.
for _ in $(seq 1 100); do
marker_names_handoff "$DAEMON_PID" && exit 0
if ! kill -0 "$DAEMON_PID" 2>/dev/null; then
wait "$DAEMON_PID"; code=$?
[ "$code" -ne 0 ] || code=70
exit "$code"
fi
sleep 0.1
done
exit 70
fi
# Electron terminates the entire detached updater process group during quit,
# including the loopback status server. Arm TERM immunity before `start_ui`
# so the shim server inherits SIG_IGN. The orchestrator restores its normal
# TERM handler after the update command has returned.
trap '' TERM
# Marker claim FIRST (contract C1/C2): before the Desktop wait, the UI or any
# probe. The Desktop supplies one acquisition time for the whole ownership
# chain; a bridge marker owned by --desktop-pid is adopted.
NOW="$(date +%s)"
STARTED_AT="${HERMES_UPDATE_STARTED_AT:-$NOW}"
case "$STARTED_AT" in ''|*[!0-9]*) STARTED_AT="$NOW" ;; esac
MIN_STARTED_AT=$((NOW - 1200))
# Compare the validated decimal strings before doing arithmetic. Shell integer
# expansion can wrap on an attacker-controlled value wider than signed 64-bit.
if [ "${#STARTED_AT}" -ne "${#NOW}" ] \
|| [[ "$STARTED_AT" > "$NOW" || "$STARTED_AT" < "$MIN_STARTED_AT" ]]; then
STARTED_AT="$NOW"
fi
DESKTOP_CT="$(proc_ct "$DESKTOP_PID")"
MARKER_REFUSED_PID=""
if ! marker_claim; then
# A4: this run changed nothing and owns no result -- the other update (or
# the Desktop that gave up on this hand-off) reports its own. An older
# Desktop quits right after spawning us, so bring one back if it is gone.
log "Another Hermes update is already running (process $MARKER_REFUSED_PID), or the Desktop gave up on this hand-off. Nothing was changed."
trap - EXIT
[ "$(uname)" = "Darwin" ] || linux_gate
launch_app || true
exit 2
fi
log "hand-off start: root=$INSTALL_ROOT branch=$BRANCH channel=$CHANNEL desktopPid=$DESKTOP_PID pid=$$"
if [ "$SELF_TEST_MARKER" -eq 1 ]; then
trap - EXIT
exit 0
fi
marker_refresher_start
# Start-of-run recovery of litter only a dead hand-off can leave (we hold the
# marker, so no other hand-off is running): an interrupted app swap, a TCC heal
# backup of a killed run, UI/probe temp files whose owning pid is gone.
case "$RELAUNCH_TARGET" in *.app) mac_bundle_recover "$RELAUNCH_TARGET" ;; esac
for _stale in "$INSTALL_ROOT"/venv/bin/*.tcc-heal-old.* "$INSTALL_ROOT"/venv/bin/*.tcc-heal-new.* \
"${TMPDIR:-/tmp}"/hermes-update-status.[0-9]* "${TMPDIR:-/tmp}"/hermes-update-probe.[0-9]* \
"${TMPDIR:-/tmp}"/hermes-update-go.[0-9]* \
"${TMPDIR:-/tmp}"/hermes-update-ui-[0-9]*-*; do
[ -e "$_stale" ] || [ -L "$_stale" ] || continue
case "$_stale" in
*.tcc-heal-*) _owner="${_stale##*.}" ;;
*) _owner="$(printf '%s' "${_stale##*/}" | sed -n 's/^[^0-9]*\([0-9][0-9]*\).*/\1/p')" ;;
esac
case "$_owner" in ''|*[!0-9]*) continue ;; esac
{ [ "$_owner" != "$$" ] && ! pid_alive "$_owner"; } || continue
case "$_stale" in
*.tcc-heal-old.*)
_orig="${_stale%.tcc-heal-old.*}"
if [ ! -e "$_orig" ] && [ ! -L "$_orig" ]; then
mv -f "$_stale" "$_orig" 2>/dev/null && log "restored $_orig from a killed TCC heal"
else
rm -f "$_stale" 2>/dev/null
fi ;;
*) rm -rf "$_stale" 2>/dev/null ;;
esac
done
# Wait out the Desktop (FAIL CLOSED: updating under live backends bricks).
# Zombie-aware and identity-checked: a reused pid is not the Desktop. Its quit
# can first join a managed SSH update it is running, which legitimately outlasts
# a short fixed wait; past the ceiling the hand-off still refuses. Overridable
# only so tests need not sit it out.
DESKTOP_EXIT_SECONDS="${HERMES_UPDATE_DESKTOP_EXIT_SECONDS:-150}"
case "$DESKTOP_EXIT_SECONDS" in ''|*[!0-9]*|0) DESKTOP_EXIT_SECONDS=150 ;; esac
if [ "$DESKTOP_PID" -gt 0 ] 2>/dev/null; then
_exit_deadline=$(( $(date +%s) + DESKTOP_EXIT_SECONDS ))
while ident_alive "$DESKTOP_PID" "$DESKTOP_CT" && [ "$(date +%s)" -lt "$_exit_deadline" ]; do sleep 0.3; done
if ident_alive "$DESKTOP_PID" "$DESKTOP_CT"; then
FINAL_CODE=4 FINAL_MSG="Update aborted: the Hermes window (pid $DESKTOP_PID) did not exit within ${DESKTOP_EXIT_SECONDS}s. Nothing was changed. Close Hermes fully and try again."
log "$FINAL_MSG"; exit "$FINAL_CODE"
fi
fi
# Do not create Chrome until Electron has fully left. During its 2.5s quit
# dwell/before-quit teardown macOS can terminate descendants of the hand-off;
# a Chrome renderer reports that SIGTERM as "Aw, Snap!" error code 15. The
# update marker above prevents a second click during this short UI-less gap.
sleep 1
start_ui
# Current installs publish an installation-bound launcher. Only pre-PM
# checkouts use the old shim/TCC rescue; a damaged PM install must not retarget.
LEGACY_INSTALL=0
[ -d "$INSTALL_ROOT/pm" ] || LEGACY_INSTALL=1
select_update_invoke() {
HERMES_BIN="$INSTALL_ROOT/.hermes/bin/hermes"
if [ -x "$HERMES_BIN" ]; then
UPDATE_INVOKE=("$HERMES_BIN")
return 0
fi
if [ -f "$INSTALL_ROOT/hermes_cli/_launchers.py" ]; then
local candidate version reported expected
expected="$(cd "$INSTALL_ROOT" && pwd -P)" || return 1
for candidate in "$HOME/.local/bin/hermes" "$HERMES_HOME/bin/hermes"; do
[ -x "$candidate" ] || continue
version="$(run_bounded 60 "$candidate" --version)" || continue
reported="$(printf '%s\n' "$version" | sed -n 's/^Install directory: //p')"
[ -d "$reported" ] || continue
[ "$(cd "$reported" && pwd -P)" = "$expected" ] || continue
HERMES_BIN="$candidate"
UPDATE_INVOKE=("$candidate")
return 0
done
fi
if [ "$LEGACY_INSTALL" -eq 1 ] && [ ! -d "$INSTALL_ROOT/pm" ]; then
HERMES_BIN="$INSTALL_ROOT/venv/bin/hermes"
[ -x "$HERMES_BIN" ] || return 1
if [ "$(uname)" = Darwin ]; then
tcc_anchor_heal "$INSTALL_ROOT/venv/bin" || log "TCC anchor rescue failed ($TCC_HEAL_STATE)"
fi
tcc_pick_update_invoke "$INSTALL_ROOT/venv/bin"
return 0
fi
return 1
}
select_update_invoke || { FINAL_CODE=3 FINAL_MSG="Update aborted: the installation launcher at $HERMES_BIN is missing. Repair this installation."; log "$FINAL_MSG"; exit 3; }
# Run FROM the install root: `hermes update` resolves the tree it mutates
# from the working directory, and we inherit the Desktop's cwd (which can be
# an unrelated repo — updating THAT instead of the install is the failure
# the sandbox repro caught). FAIL CLOSED: set -u without set -e means a
# failed cd would otherwise continue in the wrong tree — the exact class
# this correction exists to eliminate.
cd "$INSTALL_ROOT" || {
FINAL_CODE=3 FINAL_MSG="Update aborted: cannot enter the install root ($INSTALL_ROOT). Nothing was changed."
log "$FINAL_MSG"; exit 3
}
export PYTHONUNBUFFERED=1
# The takeover children (hermes update -> _update_takeover/update_finish and
# the PM sync / build stages they drive) publish their stages back into the
# shim's UI through this file; without a watching UI the variable is simply
# absent and the helper no-ops.
export HERMES_UPDATE_STATUS_FILE="$STATUS"
# `hermes update` runs under OUR marker claim (contract C1 rule 4/6).
# The claim's owner is not this script. marker_refresher_start hands line 1 to a custodian
# subshell that outlives us, so the owner is a *sibling* of this script: never our own pid,
# and never an ancestor of the `hermes update` we spawn. update_lock._is_partner can only
# match it through this variable, so exporting `$$` left the custodian unrecognisable and
# every desktop-initiated update refused its own claim with exit code 2
# ("Another Hermes update is already running (started Ns ago, process <custodian>)").
# $MY_PID is the custodian once the handover succeeded, and our own pid when it did not.
export HERMES_UPDATE_HANDOFF_PID="$MY_PID"
# The update's receipt carries this id (update_receipt._launcher_correlation_id),
# which is how update_committed_after_exit finds THIS run's receipt.
export HERMES_UPDATE_CORRELATION_ID="$UPDATE_CORRELATION"
# --keep-stash: never re-apply local source edits after the update (they stay
# parked in git stash). Probe --help first: older installed backends don't
# know the flag and argparse would abort with exit 2, which collides with the
# "close all Hermes windows" sentinel. The probe is bounded: a hung launcher
# must not hold the marker forever.
KEEP_STASH=""
if run_bounded 60 "${UPDATE_INVOKE[@]}" update --help | grep -q -- '--keep-stash'; then
KEEP_STASH="--keep-stash"
else
log "installed hermes predates --keep-stash (or the probe failed); running without it"
fi
# --gateway restarts the local messaging gateway after the update. The
# Desktop omits it (--no-gateway) when it is served by a remote gateway
# (#117529): restarting a local one there is never wanted, and with the same
# channel credentials as the remote host it becomes a competing long-poll
# consumer (e.g. Telegram rejects one of the two getUpdates callers).
GATEWAY_FLAG="--gateway"
if [ "$NO_GATEWAY" -eq 1 ]; then
GATEWAY_FLAG=""
log "update requested without --gateway (remote-served Desktop)"
fi
run_update() { # streams straight into the log (a killed run keeps its output);
# OUT = this run's slice of the log. TERM goes back to default for the child
# so neither it nor anything it starts (gateways) inherits our SIG_IGN.
# The child runs asynchronously only so its pid can go into the marker
# (marker_add_delegate) before it does anything: it waits on a go-file that
# is created only AFTER the delegate line is published, and gives up when
# this script dies first -- so no instant exists in which the update runs
# but the marker names neither a live owner nor a live delegate. A
# HUP/INT/QUIT that lands meanwhile is handled once it exits, exactly like a
# foreground child.
local offset pid sig go="${TMPDIR:-/tmp}/hermes-update-go.$$"
offset="$(wc -c < "$LOG" 2>/dev/null | tr -d '[:space:]')"
PENDING_SIGNAL=""
for sig in HUP INT QUIT; do trap "PENDING_SIGNAL=\${PENDING_SIGNAL:-$sig}" "$sig"; done
rm -f "$go" 2>/dev/null
( trap - TERM
while [ ! -e "$go" ]; do kill -0 $$ 2>/dev/null || exit 70; sleep 0.05; done
exec "${UPDATE_INVOKE[@]}" update --yes $GATEWAY_FLAG $KEEP_STASH "${TARGET_ARGS[@]}" ) >> "$LOG" 2>&1 <&0 &
pid=$!
if marker_add_delegate "$pid"; then
: > "$go"
while :; do
wait "$pid"; CODE=$?
[ "$CODE" -ne 127 ] || break # not our child any more
kill -0 "$pid" 2>/dev/null || break # reaped: CODE is its exit status
done
else
# No go-file: the child is still our parked shell, not an updater. Never
# let a timed-out/refused marker write turn this custody barrier fail-open.
kill -KILL "$pid" 2>/dev/null || true
wait "$pid" 2>/dev/null || true
CODE=3
log "update aborted: could not publish the update child as our marker delegate"
fi
rm -f "$go" 2>/dev/null
for sig in HUP INT QUIT; do trap "on_signal $sig" "$sig"; done
OUT="$(tail -c +"$(( ${offset:-0} + 1 ))" "$LOG" 2>/dev/null)"
[ -z "$PENDING_SIGNAL" ] || on_signal "$PENDING_SIGNAL"
}
log "running: ${UPDATE_INVOKE[*]} update --yes $GATEWAY_FLAG $KEEP_STASH ${TARGET_ARGS[*]}"
publish_stage "Updating code and dependencies"
run_update
log "hermes update exit code: $CODE"
if [ "$LEGACY_INSTALL" -eq 1 ] && [ "$CODE" -ne 0 ] && [ "$CODE" -ne 2 ]; then
# Retry once: update-boundary class (fresh code on disk, stale in memory).
# Exit 2 ("close all Hermes windows") is not retryable.
#
# A parked-branch SKIP (checkout on a feature branch with unmerged
# commits) is also deterministic — the retry would hit the exact same
# branch state and skip again, so it only wastes time. Detect the skip
# by its banner, skip the retry, and surface an honest message with a
# dedicated exit code (8) so callers can distinguish "skipped" from a
# real failure.
if printf '%s' "$OUT" | grep -q "CODE UPDATE SKIPPED"; then
log "hermes update skipped (checkout parked on a non-target branch); not retrying"
FINAL_CODE=8
FINAL_MSG="Update skipped: the git checkout is on a branch that isn't fully merged into $BRANCH. Switch to the target branch and update again (see the terminal output for the exact commands)."
exit 8
fi
log "retrying once (freshly pulled fix loads on the second run)"
publish_stage "Retrying update"
select_update_invoke || { FINAL_CODE=3 FINAL_MSG="Updated installation launcher is missing; repair this installation."; exit 3; }
run_update
log "retry exit code: $CODE"
fi
trap 'on_signal TERM' TERM
if [ "$CODE" -eq 0 ]; then FINAL_CODE=0 FINAL_MSG="Update complete." UPDATE_COMMITTED=1
# Contract C3: a Desktop build that fails after the code committed is an owed
# follow-up (hermes update exits 0 and prints one whole "Desktop app build
# owed:" line for it; the follow-up text itself is truncated). The user is on
# the new Hermes, but this app was not rebuilt: say so and say how to fix it,
# never "finished OK" and never "still on the previous version".
if printf '%s\n' "$OUT" | grep -Eq '^[[:space:]]*Desktop app build owed: '; then
APP_REBUILD_FAILED=1
DONE_NOTE="Hermes was updated, but the Desktop app could not be rebuilt, so it still runs its old build. Run hermes desktop --force-build in a terminal to rebuild it; the update log has the build error."
add_warning "build" "the Desktop app build is owed by the committed update"
fi
# Every other owed follow-up (a gateway still on the old code, a Windows
# resume, a lost completion, channel adoption, maintenance...) prints one
# whole "Update follow-up '<step>' did not finish:" line. None of them may
# end as a plain "Update complete." (review regression 1).
OWED_STEPS="$(owed_followup_steps)"
if [ -n "$OWED_STEPS" ]; then
case " $OWED_STEPS " in *" gateway_restart "*) OWED_HINT=" Run hermes gateway restart to move the messaging gateway onto the new code now." ;; *) OWED_HINT="" ;; esac
if [ -n "$DONE_NOTE" ]; then DONE_NOTE="$DONE_NOTE Follow-up steps still owed: $OWED_STEPS.$OWED_HINT"
else DONE_NOTE="Hermes was updated, but some follow-up steps did not finish ($OWED_STEPS). The next launch or hermes update retries them; the update log has the details.$OWED_HINT"; fi
add_warning "followup" "owed by the committed update: $OWED_STEPS"
fi
elif [ "$CODE" -ne 2 ] && update_committed_after_exit; then
# Past the commit point: installed, with an owed follow-up (contract C3).
FINAL_CODE=0 FINAL_MSG="Update complete." UPDATE_COMMITTED=1
case "$RECEIPT_OUTCOME" in
partial) DONE_NOTE="Hermes was updated, but one step is left for you: your local source changes may still be parked in git stash. Run hermes update in a terminal for the exact commands." ;;
interrupted) DONE_NOTE="Hermes was updated, but its post-update steps were interrupted. The next launch or hermes update finishes them." ;;
*) DONE_NOTE="Hermes was updated, but hermes update exited with code $CODE afterwards. Run hermes update in a terminal to finish any remaining steps." ;;
esac
add_warning "update" "hermes update exited $CODE after the commit point (receipt outcome: $RECEIPT_OUTCOME)"
else
FINAL_CODE="$CODE" FINAL_MSG="Update failed (exit $CODE). Run hermes debug share in a terminal to send a report."
# The bricked-venv class is fixable and must not read as a generic exit 1:
# a dead interpreter with a failed/impossible heal means retrying can never
# succeed — tell the user what is actually wrong (#95759).
if [ "$LEGACY_INSTALL" -eq 1 ] && ! tcc_probe_python "$INSTALL_ROOT/venv/bin/python3" \
&& ! tcc_probe_python "$INSTALL_ROOT/venv/bin/python"; then
FINAL_MSG="Update failed: the Python interpreter inside $INSTALL_ROOT/venv cannot start (heal state: $TCC_HEAL_STATE). Reinstall the runtime with the Hermes installer, or run hermes doctor --fix from a terminal if any hermes command still works."
fi
fi
# Pre-PM update code could report a failed desktop build with exit zero.
# Current composition propagates failure and never enters this legacy repair.
# The code already committed: a failed rebuild is a follow-up warning on an
# ok:true result (contract C3), never "you're still on the previous version".
if [ "$LEGACY_INSTALL" -eq 1 ] && [ "$CODE" -eq 0 ] && printf '%s' "$OUT" | grep -q "Desktop build failed"; then
log "desktop build failed inside hermes update; retrying build"
publish_stage "Rebuilding Desktop"
if ! ( trap - TERM; exec "${UPDATE_INVOKE[@]}" desktop --force-build --build-only ) >> "$LOG" 2>&1; then
APP_REBUILD_FAILED=1
DONE_NOTE="Hermes was updated, but the Desktop app rebuild failed - you are running the previous app build. Run hermes desktop --force-build from a terminal to retry."
add_warning "desktop-rebuild" "hermes desktop --force-build --build-only failed"
fi
fi
exit "$FINAL_CODE"
}