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Update CI detection cases
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PR-URL: #655
Credit: @isaacs
Close: #655
Reviewed-by: @mikemimik
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@isaacs
isaacs authored and Michael Perrotte committed Jan 23, 2020
1 parent 7852c0c commit 7dbb914
Showing 1 changed file with 22 additions and 16 deletions.
38 changes: 22 additions & 16 deletions lib/npm.js
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Original file line number Diff line number Diff line change
Expand Up @@ -283,22 +283,28 @@
ua = ua.replace(/\{arch\}/gi, process.arch)

// continuous integration platforms
const ci = process.env.GERRIT_PROJECT ? 'ci/gerrit'
: process.env.GITLAB_CI ? 'ci/gitlab'
: process.env.CIRCLECI ? 'ci/circle-ci'
: process.env.SEMAPHORE ? 'ci/semaphore'
: process.env.DRONE ? 'ci/drone'
: process.env.GITHUB_ACTION ? 'ci/github-actions'
: process.env.TDDIUM ? 'ci/tddium'
: process.env.JENKINS_URL ? 'ci/jenkins'
: process.env['bamboo.buildKey'] ? 'ci/bamboo'
: process.env.GO_PIPELINE_NAME ? 'ci/gocd'
// codeship and a few others
: process.env.CI_NAME ? `ci/${process.env.CI_NAME}`
// test travis last, since many of these mimic it
: process.env.TRAVIS ? 'ci/travis-ci'
: process.env.CI === 'true' || process.env.CI === '1' ? 'ci/custom'
: ''
const ciName = process.env.GERRIT_PROJECT ? 'gerrit'
: process.env.GITLAB_CI ? 'gitlab'
: process.env.APPVEYOR ? 'appveyor'
: process.env.CIRCLECI ? 'circle-ci'
: process.env.SEMAPHORE ? 'semaphore'
: process.env.DRONE ? 'drone'
: process.env.GITHUB_ACTION ? 'github-actions'
: process.env.TDDIUM ? 'tddium'
: process.env.JENKINS_URL ? 'jenkins'
: process.env['bamboo.buildKey'] ? 'bamboo'
: process.env.GO_PIPELINE_NAME ? 'gocd'
// codeship and a few others
: process.env.CI_NAME ? process.env.CI_NAME
// test travis after the others, since several CI systems mimic it
: process.env.TRAVIS ? 'travis-ci'
// aws CodeBuild/CodePipeline
: process.env.CODEBUILD_SRC_DIR ? 'aws-codebuild'
: process.env.CI === 'true' || process.env.CI === '1' ? 'custom'
// Google Cloud Build - it sets almost nothing
: process.env.BUILDER_OUTPUT ? 'builder'
: false
const ci = ciName ? `ci/${ciName}` : ''
ua = ua.replace(/\{ci\}/gi, ci)

config.set('user-agent', ua.trim())
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5 comments on commit 7dbb914

@lawwantsin
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my god, what a fine club to be in.

@glensc
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@glensc glensc commented on 7dbb914 Feb 4, 2020

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what a terrible nesting, I would this refactor to define some map of env variables => ci name, and iterate over the map.

@isaacs
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@isaacs isaacs commented on 7dbb914 Feb 5, 2020

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@glensc It's refactored away entirely into @npmcli/ci-detect, but we can't bundle scoped modules into the CLI until v7, due to a bug in how npm v3 handled bundled scoped deps. (npm v3 ships with Node v6, which is the oldest Node.js version supported by npm v6).

@glensc
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@glensc glensc commented on 7dbb914 Feb 5, 2020

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but still same code there :)

@isaacs
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@isaacs isaacs commented on 7dbb914 Feb 5, 2020

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But without standard's abusive indentation.

A series of ternaries is ideal for this use case, because it is the formulation that affords the minimum amount of flexibility. When you see a start of a ternary, you know that the only possible use is (conditional expression) ? (expression) : (expression). There's no possibility for it to have multiple non-expression statements. It cannot throw, return, fail to set the initially assigned variable, etc.

A good rule of thumb in programming is to always use the code form that grants as much flexibility as needed, but no more, so that a reader can "switch off" scanning for other possible behaviors. This is why types are good (and really, imo, the only relevant reason why types are good), why arrow functions and classes are better than function, why brace-less arrow functions and if/else are better than braced, etc.

Keep your flexibility small, so that the intention of a block of code is clear. This is, in the long run, a much more useful and pragmatic rubric than "make it easy to read", because what is "easy to read" depends more on subjective personal experience and the whims of fashion than anything else. Your entire future will be spent as a person with more experience than you have today; optimize for that person, not this one.

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