simple-email/node_modules/env-ci/services/bitbucket.js

// https://confluence.atlassian.com/bitbucket/environment-variables-794502608.html

module.exports = {
	detect({env}) {
		return Boolean(env.BITBUCKET_BUILD_NUMBER);
	},
	configuration({env}) {
		return {
			name: 'Bitbucket Pipelines',
			service: 'bitbucket',
			commit: env.BITBUCKET_COMMIT,
			tag: env.BITBUCKET_TAG,
			build: env.BITBUCKET_BUILD_NUMBER,
			buildUrl: `https://bitbucket.org/${env.BITBUCKET_REPO_SLUG}/addon/pipelines/home#!/results/${
				env.BITBUCKET_BUILD_NUMBER
			}`,
			branch: env.BITBUCKET_BRANCH,
			slug: env.BITBUCKET_REPO_SLUG,
			root: env.BITBUCKET_CLONE_DIR,
		};
	},
};