From 3afeb78a604d53106e6e6dc89d43efa7bed95092 Mon Sep 17 00:00:00 2001
From: joaorodrigues <joao.rodrigues@airc.pt>
Date: Tue, 1 Jun 2021 13:49:17 +0100
Subject: [PATCH] feat: add breaking change footer and !:

---
 .../ConventionalCommits.java                  | 13 +++-
 .../ConventionalCommitsTest.java              | 65 ++++++++++++++++++-
 2 files changed, 74 insertions(+), 4 deletions(-)

diff --git a/src/main/java/io/jenkins/plugins/conventionalcommits/ConventionalCommits.java b/src/main/java/io/jenkins/plugins/conventionalcommits/ConventionalCommits.java
index 80aefbb..a67273d 100644
--- a/src/main/java/io/jenkins/plugins/conventionalcommits/ConventionalCommits.java
+++ b/src/main/java/io/jenkins/plugins/conventionalcommits/ConventionalCommits.java
@@ -12,7 +12,7 @@ private List<String> filterMergeCommits(List<String> commits) {
 
     public Version nextVersion(Version in, List<String> commits) {
         List<String> filtered = filterMergeCommits(commits);
-        List<String> breaking = filtered.stream().filter(s -> s.startsWith("BREAKING CHANGE")).collect(Collectors.toList());
+        List<String> breaking = filtered.stream().filter(s -> s.contains("!:") || breakingChangeFooter(s) ).collect(Collectors.toList());
         List<String> features = filtered.stream().filter(s -> s.startsWith("feat")).collect(Collectors.toList());
 
         if (!breaking.isEmpty()) {
@@ -25,4 +25,15 @@ public Version nextVersion(Version in, List<String> commits) {
 
         return in.incrementPatchVersion();
     }
+
+    private boolean breakingChangeFooter(String commit){
+        int startIndex = commit.lastIndexOf("\n");
+
+        String result = commit;
+
+        if(startIndex!=-1 && startIndex!= commit.length()){
+            result = commit.substring(startIndex+1);
+        }
+        return result.startsWith("BREAKING CHANGE");
+    }
 }
diff --git a/src/test/java/io/jenkins/plugins/conventionalcommits/ConventionalCommitsTest.java b/src/test/java/io/jenkins/plugins/conventionalcommits/ConventionalCommitsTest.java
index 5326188..b523b07 100644
--- a/src/test/java/io/jenkins/plugins/conventionalcommits/ConventionalCommitsTest.java
+++ b/src/test/java/io/jenkins/plugins/conventionalcommits/ConventionalCommitsTest.java
@@ -1,11 +1,14 @@
 package io.jenkins.plugins.conventionalcommits;
 
 import com.github.zafarkhaja.semver.Version;
-import java.util.Arrays;
 import org.junit.Test;
 
-import static org.hamcrest.MatcherAssert.*;
-import static org.hamcrest.CoreMatchers.*;
+import java.util.Arrays;
+import java.util.Collections;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.hamcrest.MatcherAssert.assertThat;
 
 public class ConventionalCommitsTest {
 
@@ -79,4 +82,60 @@ public void willBumpMajorVersion_MultipleCommits() {
         assertThat(out, is(notNullValue()));
         assertThat(out.toString(), is("1.0.0"));
     }
+
+    @Test
+    public void willBumpMajorVersion_ExclamationCommit() {
+        ConventionalCommits cc = new ConventionalCommits();
+
+        Version out = cc.nextVersion(Version.valueOf("0.0.1"), Collections.singletonList(
+                "feat!: new major version"));
+        assertThat(out, is(notNullValue()));
+        assertThat(out.toString(), is("1.0.0"));
+    }
+
+    @Test
+    public void willBumpMajorVersion_FooterMultipleLineCommit() {
+        ConventionalCommits cc = new ConventionalCommits();
+
+        Version out = cc.nextVersion(Version.valueOf("0.0.1"), Collections.singletonList(
+                "feat: new major version \nBREAKING CHANGE: new breaking change"
+        ));
+        assertThat(out, is(notNullValue()));
+        assertThat(out.toString(), is("1.0.0"));
+    }
+
+    @Test
+    public void willNotBumpMajorVersion_ExclamationMultipleLineCommitNotFooter() {
+        ConventionalCommits cc = new ConventionalCommits();
+
+        Version out = cc.nextVersion(Version.valueOf("0.0.1"), Collections.singletonList(
+                "chore: new major version \nBREAKING CHANGE: new breaking change \nstupid footer"
+        ));
+        assertThat(out, is(notNullValue()));
+        assertThat(out.toString(), is("0.0.2"));
+    }
+
+    @Test
+    public void willBumpMajorVersion_MultipleCommitsMultipleLineExclamation() {
+        ConventionalCommits cc = new ConventionalCommits();
+
+        Version out = cc.nextVersion(Version.valueOf("0.0.1"), Arrays.asList(
+                "feat!: add new feature",
+                "fix: bug fix",
+                "fix: another fix"));
+        assertThat(out, is(notNullValue()));
+        assertThat(out.toString(), is("1.0.0"));
+    }
+
+    @Test
+    public void willBumpMajorVersion_MultipleCommitsMultipleLineFooter() {
+        ConventionalCommits cc = new ConventionalCommits();
+
+        Version out = cc.nextVersion(Version.valueOf("0.0.1"), Arrays.asList(
+                "feat: add new feature",
+                "fix: bug fix \nBREAKING CHANGE: breaking change",
+                "fix: another fix"));
+        assertThat(out, is(notNullValue()));
+        assertThat(out.toString(), is("1.0.0"));
+    }
 }