feat(pre): plugging last-release, commits and type together

src/pre.js

@@ -0,0 +1,34 @@
+const auto = require('run-auto')
+const semver = require('semver')
+
+const getLastRelease = require('./lib/last-release')
+const getCommits = require('./lib/commits')
+const getType = require('./lib/type')
+
+module.exports = function (pkg, npmConfig, plugins, cb) {
+  auto({
+    lastRelease: getLastRelease.bind(null, pkg, npmConfig),
+    commits: ['lastRelease', (cb, results) => {
+      getCommits(results.lastRelease, cb)
+    }],
+    type: ['commits', 'lastRelease', (cb, results) => {
+      getType(plugins, results.commits, results.lastRelease, cb)
+    }]
+  }, (err, results) => {
+    if (err) return cb(err)
+
+    const nextRelease = {
+      type: results.type,
+      commits: results.commits,
+      lastVersion: results.lastRelease.version,
+      version: results.type === 'initial' ?
+        '1.0.0' :
+        semver.inc(results.lastRelease.version, results.type)
+    }
+
+    plugins.verify(nextRelease, (err) => {
+      if (err) return cb(err)
+      cb(null, nextRelease)
+    })
+  })
+}