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Detect what kind of CI environment the program is in

Package Exports

  • @npmcli/ci-detect
  • @npmcli/ci-detect/lib/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@npmcli/ci-detect) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

@npmcli/ci-detect

Detect what kind of CI environment the program is in

USAGE

const ciDetect = require('@npmcli/ci-detect')
// false if not in CI
// otherwise, a string indicating the CI environment type
const inCI = ciDetect()

CIs Detected

Returns one of the following strings, or false if none match, by looking at the appropriate environment variables.

  • Anything that sets the CI_NAME environment variable will return the value as the result. (This is how CodeShip is detected.)
  • 'aws-codebuild' AWS CodeBuild
  • 'azure-pipelines' Azure Pipelines
  • 'bamboo' Bamboo
  • 'bitbucket-pipelines' Bitbucket Pipelines
  • 'bitrise' Bitrise
  • 'buddy' Buddy
  • 'builder' Google Cloud Builder - This one is a bit weird. It doesn't really set anything that can be reliably detected except BUILDER_OUTPUT, so it can get false positives pretty easily.
  • 'buildkite' Buildkite
  • 'circleci' Circle-CI
  • 'cirrus' Cirrus CI
  • 'codeship' CodeShip
  • 'custom' anything else that sets CI environment variable to either '1' or 'true'.
  • 'drone' Drone
  • 'dsari' dsari CI
  • 'gerrit' Gerrit
  • 'github-actions' GitHub Actions
  • 'gitlab' GitLab
  • 'gocd' GoCD
  • 'heroku' Heroku
  • 'hudson' Hudson CI
  • 'jenkins' Jenkins
  • 'magnum' Magnum CI
  • 'netlify' Netlify
  • 'nevercode' Nevercode
  • 'now' Zeit.co's Now service, but not GitHub/BitBucket/GitLab
  • 'now-bitbucket' Zeit.co's Now for BitBucket deployment service
  • 'now-github' Zeit.co's Now for GitHub deployment service
  • 'now-gitlab' Zeit.co's Now for GitLab deployment service
  • 'render' Render CI
  • 'sail' Sail CI
  • 'screwdriver' Screwdriver CI
  • 'semaphore' Semaphore
  • 'shippable' Shippable
  • 'strider' Strider CI
  • 'taskcluster' Mozilla Taskcluster
  • 'tddium' TDDium
  • 'teamcity' TeamCity
  • 'travis-ci' Travis-CI - A few other CI systems set TRAVIS=1 in the environment, because devs use that to indicate "test mode", so this one can get some false positives, and is tested later in the process to minimize this effect.
  • 'vercel' Vercel
  • 'vercel-bitbucket' Vercel Bitbucket
  • 'vercel-github' Vercel GitHub
  • 'vercel-gitlab' Vercel Gitlab
  • 'wercker' Oracle Wercker
  • 'woodpecker' Woodpecker CI

Caveats

Since any program can set or unset whatever environment variables they want, this is not 100% reliable.

Also, if your program does different behavior in CI/test/deployment than other places, then there's a good chance that you're doing something wrong!

But, for little niceties like setting colors or other output parameters, or logging and that sort of non-essential thing, this module provides a way to tweak without checking a bunch of things in a bunch of places. Mostly, it's a single place to keep a note of what CI system sets which environment variable.