feat: basic jenkins support

README.md

@@ -20,6 +20,7 @@ After [enabling Greenkeeper for your repository](https://github.com/integration/
 
 * ✅ Travis CI
 * ✅ Circle CI _Thank you [@ethanrubio](https://github.com/greenkeeperio/greenkeeper-lockfile/pull/18) 👏_
+* ✅ Jenkins
 * 🙏 [Contribute your own](#contributing-a-ci-service)
 
 ## How does it work

ci-services/jenkins.js

@@ -0,0 +1,12 @@
+const env = process.env
+
+const _ = require('lodash')
+const gitHelpers = require('../lib/git-helpers')
+
+module.exports = {
+  gitUrl: env.GIT_URL,
+  branchName: _.drop(_.split(env.GIT_BRANCH, '/')).join('/'),
+  firstPush: gitHelpers.getNumberOfCommitsOnBranch(env.GIT_BRANCH) === 1,
+  correctBuild: true, // assuming pull requests are not build
+  uploadBuild: true // assuming 1 build per branch
+}

ci-services/tests.js

@@ -2,5 +2,6 @@ const env = process.env
 
 module.exports = {
   travis: () => env.TRAVIS === 'true',
-  circleci: () => env.CIRCLECI === 'true'
+  circleci: () => env.CIRCLECI === 'true',
+  jenkins: () => env.JENKINS_URL !== undefined
 }

lib/git-helpers.js

@@ -4,11 +4,11 @@ const _ = require('lodash')
 
 module.exports = {
   getNumberOfCommitsOnBranch: function getNumberOfCommitsOnBranch (branch) {
-    const grepAgument = `refs/heads/${branch}`
-    const notArgument = `$(git for-each-ref --format="%(refname)" refs/heads/ | grep -v ${grepAgument})`
+    const refArgument = `$(git for-each-ref '--format=%(refname)' refs/ | grep /${branch} | head -1)`
+    const notArgument = `$(git for-each-ref '--format=%(refname)' refs/ | grep -v /${branch})`
     return _.toNumber(
       exec(
-        `git log ${branch} --oneline --not ${notArgument} | wc -l`
+        `git log ${refArgument} --oneline --not ${notArgument} | wc -l`
       ).toString()
     )
   }

upload.js

@@ -1,6 +1,7 @@
 #!/usr/bin/env node
 
 const exec = require('child_process').execSync
+const url = require('url')
 
 const config = require('./lib/config')
 const info = require('./ci-services')()
@@ -32,14 +33,17 @@ module.exports = function upload () {
     return console.error('Only uploading on one build job')
   }
 
+  let remote = `[email protected]:${info.repoSlug}`
+  if (info.gitUrl) remote = info.gitUrl
+
   if (env.GH_TOKEN) {
-    // Use the GH_TOKEN if provided.
-    exec(`git remote add gk-origin https://${env.GH_TOKEN}@github.com/${info.repoSlug}`)
-  } else {
-    // Otherwise, assume an SSH key is available.
-    exec(`git remote add gk-origin [email protected]:${info.repoSlug}`)
+    if (remote.slice(0, 5) !== 'https') remote = `https://github.com/${info.repoSlug}`
+    const urlParsed = url.parse(remote)
+    urlParsed.auth = env.GH_TOKEN
+    remote = url.format(urlParsed)
   }
 
+  exec(`git remote add gk-origin ${remote}`)
   exec(`git push gk-origin HEAD:${info.branchName}`)
 }