Run one check of everything before every deploy

How to do it

Keep one script that runs the unit tests, the build gates, the linters and type checker, and the end-to-end tests. For a website, add a browser run over every page in the sitemap. Print one PASS or FAIL line per check, keep the logs, and exit with a code other than zero if any check fails. Call the script at the top of the deploy script and in continuous integration. Give the check its own copy of the build, so a rebuild during the run cannot cause false failures.

Example

#!/usr/bin/env bash
# check.sh: every rule, the whole project, pass or fail
set -uo pipefail
failed=0
check() { name=$1; shift; if "$@" >/tmp/check.log 2>&1; then echo "PASS  $name"; else echo "FAIL  $name"; tail -20 /tmp/check.log; failed=1; fi; }
check "Lint and types" npm run lint
check "Unit tests" npm test
check "Build gates" npm run build
check "End-to-end tests" npm run e2e
check "Browser lab: accessibility and layout" npm run lab
exit $failed

PASS  Lint and types
PASS  Unit tests
PASS  Build gates
PASS  End-to-end tests
PASS  Browser lab: accessibility and layout

How to check

Run the script on a clean build. It prints PASS for every check and exits with zero. Whenever you change how the script runs steps, plant a failure on purpose. The run must report it and exit with a code other than zero.