From d248eed29bccb75c31ef99516318194ab45248aa Mon Sep 17 00:00:00 2001
From: Alex Gyoshev <alex@gyoshev.net>
Date: Wed, 10 May 2017 16:17:10 +0300
Subject: [PATCH] feat: enable release channels

---
 .travis.yml                  |  2 +-
 build/sr-analyzeCommits.js   | 25 +++++++++++++++++++++++++
 build/sr-verifyConditions.js | 19 +++++++++++++++++++
 build/sr-verifyRelease.js    | 15 +++++++++++++++
 package.json                 | 11 +++++++++++
 5 files changed, 71 insertions(+), 1 deletion(-)
 create mode 100644 build/sr-analyzeCommits.js
 create mode 100644 build/sr-verifyConditions.js
 create mode 100644 build/sr-verifyRelease.js

diff --git a/.travis.yml b/.travis.yml
index 8603944..459ef54 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,4 +28,4 @@ after_success:
   - npm run semantic-release
 branches:
   except:
-    - "/^v\\d+\\.\\d+\\.\\d+$/"
+    - "/^v\\d+\\.\\d+\\.\\d+(\\-.*)?$/"
diff --git a/build/sr-analyzeCommits.js b/build/sr-analyzeCommits.js
new file mode 100644
index 0000000..e9e7efa
--- /dev/null
+++ b/build/sr-analyzeCommits.js
@@ -0,0 +1,25 @@
+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];
+    let releaseType = type;
+
+    // if branch publishes a dist-tag
+    if (type && distTag) {
+      // map all types of releases to prereleases
+      releaseType = {
+        'major': 'premajor',
+        'minor': 'preminor',
+        'patch': 'prepatch'
+      }[type] || type;
+
+      console.log("Publishing a " + releaseType + " release.");
+    }
+
+    cb(error, releaseType);
+  });
+};
+
diff --git a/build/sr-verifyConditions.js b/build/sr-verifyConditions.js
new file mode 100644
index 0000000..d9d54a1
--- /dev/null
+++ b/build/sr-verifyConditions.js
@@ -0,0 +1,19 @@
+const conditionTravis = require('@semantic-release/condition-travis');
+
+module.exports = function (pluginConfig, config, cb) {
+  const branch = config.env.TRAVIS_BRANCH;
+  const distTag = config.options.branchTags[branch];
+
+  // update semantic-release configuration to publish:
+  // - from this branch
+  // - with the specified dist tag
+  if (distTag) {
+    console.log(`Enable prerelease on dist-tag '${distTag}'.`);
+
+    config.options.branch = branch;
+    config.npm.tag = distTag;
+  }
+
+  // run default travis checks with the new configuration
+  return conditionTravis(pluginConfig, config, cb);
+};
diff --git a/build/sr-verifyRelease.js b/build/sr-verifyRelease.js
new file mode 100644
index 0000000..6d95fb9
--- /dev/null
+++ b/build/sr-verifyRelease.js
@@ -0,0 +1,15 @@
+module.exports = function (pluginConfig, config, cb) {
+  if (config.nextRelease) {
+    // change version suffix of pre-releases from '-number' to '-tag.timestamp'
+    const now = new Date();
+    const timestamp = now.toISOString().replace(/[\-T\:]/g, "").slice(0,12);
+    const suffix = `-${config.npm.tag}.${timestamp}`;
+    const release = config.nextRelease;
+
+    release.version = release.version.replace(/\-.+$/, suffix);
+
+    console.log(`Ready for release v${release.version}`);
+  }
+
+  cb(null);
+};
diff --git a/package.json b/package.json
index d45d85c..ffa0d9e 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,17 @@
   "publishConfig": {
     "registry": "https://registry.npm.telerik.com"
   },
+  "release": {
+    "branchTags": {
+      "develop": "dev"
+    },
+    "fallbackTags": {
+      "dev": "latest"
+    },
+    "verifyConditions": "./build/sr-verifyConditions",
+    "analyzeCommits": "./build/sr-analyzeCommits",
+    "verifyRelease": "./build/sr-verifyRelease"
+  },
   "scripts": {
     "lint": "sass-lint -v -c ./sass-lint.yml",
     "api": "sassdoc ./scss/",