From 3defc79a28b255337a90444c19ab86aa28a37826 Mon Sep 17 00:00:00 2001
From: Patrick Mowrer <pmowrer@gmail.com>
Date: Tue, 12 Dec 2017 13:34:38 -0500
Subject: [PATCH 1/2] fix(get-last-release): don't crash if last release isn't
 found

---
 src/get-last-release.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/get-last-release.js b/src/get-last-release.js
index bea8b9e..ba30497 100644
--- a/src/get-last-release.js
+++ b/src/get-last-release.js
@@ -15,7 +15,7 @@ module.exports = async (pluginConfig, options) => {
    * 2. We can use `semantic-release`'s fallback strategy, searching for a matching git tag,
    *    but we must update the git tag format to be compatible with the monorepo workflow.
    **/
-  if (!result.gitHead) {
+  if (result && !result.gitHead) {
     return {
       ...result,
       ...await getVersionHead(null, await gitTag(result.version))

From 2eed4301a395bea13ccb14046cf6c5c6e5977edb Mon Sep 17 00:00:00 2001
From: Patrick Mowrer <pmowrer@gmail.com>
Date: Tue, 12 Dec 2017 13:37:17 -0500
Subject: [PATCH 2/2] fix: commit files path filter should match beginning of
 paths
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Using `Array.includes` allowed the package path to match against any
part of a commit file’s path, resulting in false positives.
---
 package.json                |  1 +
 src/with-package-commits.js | 12 +++++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 6f3293e..0fff4d1 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "semantic-release": "^11.0.0"
   },
   "dependencies": {
+    "debug": "^3.1.0",
     "execa": "^0.8.0",
     "pkg-up": "^2.0.0",
     "ramda": "^0.25.0",
diff --git a/src/with-package-commits.js b/src/with-package-commits.js
index ff9d077..6bf94c6 100644
--- a/src/with-package-commits.js
+++ b/src/with-package-commits.js
@@ -1,3 +1,4 @@
+const debug = require('debug')('semantic-release:commit-analyzer');
 const pkgUp = require('pkg-up');
 const { getCommitFiles, getGitRoot } = require('./git-utils');
 const overrideOption = require('./override-option');
@@ -17,10 +18,19 @@ const withFiles = async commits => {
 
 const withPackageCommits = async commits => {
   const packagePath = await getPackagePath();
+  debug('Filter commits by package path: "%s"', packagePath);
   const commitsWithFiles = await withFiles(commits);
 
   return commitsWithFiles.filter(
-    ({ files }) => files.some(path => path.includes(packagePath))
+    ({ files, subject }) => {
+      const matchingPath = files.find(path => path.indexOf(packagePath) === 0);
+
+      if (matchingPath) {
+        debug('Including commit "%s" because it modified package file "%s".', subject, matchingPath);
+      }
+
+      return !!matchingPath;
+    }
   );
 };