fix: do not increment versions in dist-tags

Author: gyoshev

analyzeCommits.js

@@ -3,8 +3,9 @@ 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;
-    const distTag = config.options.branchTags[branch];
+    const branch = config.env.TRAVIS_BRANCH || config.env.GIT_BRANCH;
+    const branchTags = config.options.branchTags;
+    const distTag = branchTags && branchTags[branch];
     let releaseType = type;
 
     // if branch publishes a dist-tag

getLastRelease.js

@@ -0,0 +1,20 @@
+const defaultLastRelease = require('@semantic-release/last-release-npm');
+
+module.exports = function (pluginConfig, config, cb) {
+  let branch;
+
+  if (config.env.TRAVIS) {
+    branch = config.env.TRAVIS_BRANCH;
+  } else {
+    branch = config.env.GIT_BRANCH;
+  }
+
+  const distTag = config.options.branchTags[branch];
+  if (distTag) {
+    // use 'latest' dist tag to determine what version will be published
+    config.npm.tag = "latest";
+  }
+
+  return defaultLastRelease(pluginConfig, config, cb);
+};
+