fix: env vars on Jenkins

Author: tsvetomir

analyzeCommits.js

@@ -3,7 +3,7 @@ const analyzeCommits = require('@semantic-release/commit-analyzer')
 module.exports = function (pluginConfig, config, cb) {
   // run standard commit analysis
   return analyzeCommits(pluginConfig, config, function(error, type) {
-    const branch = config.env.TRAVIS_BRANCH || config.env.GIT_BRANCH;
+    const branch = config.env.TRAVIS_BRANCH || config.env.GIT_LOCAL_BRANCH;
     const branchTags = config.options.branchTags;
     const distTag = branchTags && branchTags[branch];
     let releaseType = type;

bin/semantic-prerelease.js

@@ -2,7 +2,7 @@
 
 const path = require('path');
 const config = require(path.resolve('package.json'));
-const branch = process.env.TRAVIS_BRANCH || process.env.GIT_BRANCH;
+const branch = process.env.TRAVIS_BRANCH || process.env.GIT_LOCAL_BRANCH;
 const branchTags = config.release && config.release.branchTags;
 const tag = branchTags && branchTags[branch];
 const dryRun = process.argv.find(arg => /^(--dry-run|-n)$/.test(arg));

getLastRelease.js

@@ -7,7 +7,7 @@ module.exports = function (pluginConfig, config, cb) {
   if (config.env.TRAVIS) {
     branch = config.env.TRAVIS_BRANCH;
   } else {
-    branch = config.env.GIT_BRANCH;
+    branch = config.env.GIT_LOCAL_BRANCH;
   }
 
   const distTag = config.options.branchTags[branch];