From 3fc7f095664ed11fa4168778cf576784200cd416 Mon Sep 17 00:00:00 2001
From: Sebastiaan Stok <s.stok@rollerscapes.net>
Date: Fri, 24 Nov 2017 11:55:03 +0100
Subject: [PATCH] Allow to increment with next

When stable increment minor, for unstable with metaver increment metaver instead.
---
 README.md             |  2 ++
 src/Version.php       | 17 +++++++++++++++--
 tests/VersionTest.php |  7 +++++++
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index a3faa2c..f280f52 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,7 @@ $version = Version::fromString('v1.3.2');
 
 $newVersion = $version->increase('major');  // v2.0.0
 $newVersion = $version->increase('minor');  // v1.4.0
+$newVersion = $version->increase('next');   // v1.4.0
 $newVersion = $version->increase('patch');  // v1.3.3
 $newVersion = $version->increase('stable'); // v1.4.0
 
@@ -54,6 +55,7 @@ $version = Version::fromString('v1.4.0-BETA1');
 $newVersion = $version->increase('beta');   // v1.4.0-BETA2
 $newVersion = $version->increase('rc');     // v1.4.0-RC1
 $newVersion = $version->increase('major');  // v1.4.0
+$newVersion = $version->increase('next');   // v1.4.0-BETA2
 $newVersion = $version->increase('stable'); // v1.4.0
 
 // Version validation
diff --git a/src/Version.php b/src/Version.php
index 9784fdf..db8225b 100644
--- a/src/Version.php
+++ b/src/Version.php
@@ -202,11 +202,15 @@ public function increase(string $stability): Version
             case 'stable':
                 return $this->increaseStable();
 
+            case 'next':
+                return $this->increaseNext();
+
             default:
                 throw new \InvalidArgumentException(
                     sprintf(
-                        'Unknown stability "%s", accepts "%s" '.$stability,
-                        implode('", "', ['alpha', 'beta', 'rc', 'stable', 'major', 'minor', 'patch'])
+                        'Unknown stability "%s", accepts "%s".',
+                        $stability,
+                        implode('", "', ['alpha', 'beta', 'rc', 'stable', 'major', 'next', 'minor', 'patch'])
                     )
                 );
         }
@@ -233,4 +237,13 @@ private function increaseStable(): Version
 
         return new self($this->major, $this->minor + 1, 0, 3);
     }
+
+    private function increaseNext(): Version
+    {
+        if ($this->major > 0 && $this->stability < 3) {
+            return new self($this->major, $this->minor, $this->patch, $this->stability, $this->metaver + 1);
+        }
+
+        return new self($this->major, $this->minor + 1, 0, 3);
+    }
 }
diff --git a/tests/VersionTest.php b/tests/VersionTest.php
index a2c2185..6b5cd68 100644
--- a/tests/VersionTest.php
+++ b/tests/VersionTest.php
@@ -156,6 +156,13 @@ public function provideExpectedIncreasedVersion(): array
             'major from 1.0' => ['1.0.0', '2.0.0', 'major'],
             'major from 2.0-beta' => ['2.0.0-beta1', '2.0.0', 'major'],
 
+            // Next
+            'new next from 0.1.0' => ['0.1.0', '0.2.0', 'next'],
+            'new next from 0.1.1' => ['0.1.1', '0.2.0', 'next'],
+            'new next from alpha' => ['1.0.0-alpha6', '1.0.0-alpha7', 'next'],
+            'new next from beta' => ['1.0.0-beta1', '1.0.0-beta2', 'next'],
+            'new next from current stable' => ['1.0.0', '1.1.0', 'next'],
+
             // Alpha
             'next alpha' => ['1.0.0-alpha1', '1.0.0-alpha2', 'alpha'],
             'new alpha' => ['1.0.0', '1.1.0-alpha1', 'alpha'],