fix!: Breaking changes on version 0.x.y should not update the major version.

Author: jmongard

src/main/kotlin/git/semver/plugin/semver/BaseSettings.kt

@@ -5,8 +5,8 @@ import java.io.Serializable
 abstract class BaseSettings(
     var defaultPreRelease: String = "SNAPSHOT",
     var releasePattern: String = "\\Arelease(?:\\([^()]+\\))?:",
-    var patchPattern: String = "\\Afix(?:\\([^()]+\\))?:",
-    var minorPattern: String = "\\Afeat(?:\\([^()]+\\))?:",
+    var patchPattern: String = "\\Afix!?(?:\\([^()]+\\))?:",
+    var minorPattern: String = "\\Afeat!?(?:\\([^()]+\\))?:",
     var majorPattern: String = "\\A\\w+(?:\\([^()]+\\))?!:|^BREAKING[ -]CHANGE:",
     var releaseCommitTextFormat: String = "release: v%s\n\n%s",
     var releaseTagNameFormat: String = "%s",

src/main/kotlin/git/semver/plugin/semver/MutableSemVersion.kt

@@ -125,7 +125,7 @@ internal class MutableSemVersion(
         text: String
     ) {
         when {
-            settings.majorRegex.containsMatchIn(text) ->
+            major > 0 && settings.majorRegex.containsMatchIn(text) ->
                 if (!isPreRelease || major == initialVersion.major) {
                     bumpMajor += 1
                     bumpMinor = 0

src/test/kotlin/git/semver/plugin/scm/GitProviderTest.kt

@@ -55,7 +55,7 @@ class GitProviderTest {
 
             val actual = release(gitProvider, it, "-")
 
-            assertEquals("2.0.0", actual.toVersionString())
+            assertEquals("3.0.0", actual.toVersionString())
         }
 
         printFoot()
@@ -74,7 +74,7 @@ class GitProviderTest {
 
             val actual = release(gitProvider, it, "-")
 
-            assertEquals("2.0.0", actual.toVersionString())
+            assertEquals("3.0.0", actual.toVersionString())
         }
         printFoot()
     }
@@ -119,7 +119,7 @@ class GitProviderTest {
             assertThat(actual.map(Commit::toString))
                 .contains("feat: another feature")
                 .contains("feat!: breaking feature")
-                .contains("release: v2.0.0")
+                .contains("release: v3.0.0")
                 .doesNotContain("docs: updated readme")
         }
     }
@@ -151,6 +151,7 @@ class GitProviderTest {
 
     private fun lotsOfCommits(it: Git, gitProvider: GitProvider) {
         initOrReset(it, gitProvider)
+        commit(it, "release: 1.0.0", gitProvider)
         commit(it, "build: some changes", gitProvider)
         release(gitProvider, it)
         commit(it, "docs: updated readme", gitProvider)

src/test/kotlin/git/semver/plugin/semver/SemVersionFinderTest.kt

@@ -312,6 +312,7 @@ class SemVersionFinderTest {
         assertEquals("1.1.1-SNAPSHOT+003", getVersionFromTagAndCommits("v1.1.0", "Commit 1", "Commit 2", "Commit 3"))
         assertEquals("1.2.1-SNAPSHOT+003", getVersionFromTagAndCommits("v1.2", "Commit 1", "Commit 2", "Commit 3"))
         assertEquals("2.2.3-SNAPSHOT+001", getVersionFromTagAndCommits("v2.2.2", "Commit 1"))
+        assertEquals("0.3.0-SNAPSHOT+001", getVersionFromTagAndCommits("v0.2.2", "feat!: Version 0 not updating major on breaking change"))
         assertEquals("3.0.0-SNAPSHOT+001", getVersionFromTagAndCommits("v2.2.2", "refactor!: drop some support"))
         assertEquals(
             "3.0.0-SNAPSHOT+001",