orchestra: pre-release WIP snapshot (orchestra-06g4w63545t3rv8sskgkn11b3g-3ff9fe45)

scripts/orchestra_e2e_healthcheck.sh

@@ -84,7 +84,7 @@ emit() {
 # usage <format>: the --help body. Also the source check_usage_text_mentions_every_flag
 # reads, so the flag list has exactly one home.
 usage() {
-  emit "$1" 'Usage: %s [--quiet] [--json] [--summary] [--timing] [--strict] [--list-checks]\n\n' "${0##*/}"
+  emit "$1" 'Usage: %s [--quiet] [--json] [--summary] [--timing] [--strict] [--list-checks] [--only <name>]\n\n' "${0##*/}"
   emit "$1" 'Healthcheck script for Orchestra E2E tests.\n'
   emit "$1" 'Exits 0 with a success message if all checks pass.\n'
   emit "$1" '  --quiet  Suppress the success message; still exits 0.\n'
@@ -94,6 +94,7 @@ usage() {
   emit "$1" '  --timing Print elapsed milliseconds for the run.\n'
   emit "$1" '  --strict Reject an unrecognised flag: exits 2.\n'
   emit "$1" '  --list-checks  Print the name of each check; exits 0.\n'
+  emit "$1" '  --only <name>  Run only the named check; exits 2 if unknown.\n'
   emit "$1" '\nChecks:\n'
   local name
   for name in $CHECKS; do