From b6f6f7c01e586346b7bd52bd1b2ebeb8e9dcb0b0 Mon Sep 17 00:00:00 2001
From: Steve Mao <maochenyan@gmail.com>
Date: Sun, 10 Apr 2016 22:17:42 +1000
Subject: [PATCH] feat(mergeConfig): add defaultFinalizeContext

Makes it possible to modify the result based on the default function.
---
 lib/merge-config.js |  5 ++++-
 readme.md           | 12 +++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/lib/merge-config.js b/lib/merge-config.js
index b6f0bd5..60aee2a 100644
--- a/lib/merge-config.js
+++ b/lib/merge-config.js
@@ -219,7 +219,7 @@ function mergeConfig(options, context, gitRawCommitsOpts, parserOpts, writerOpts
       }
 
       writerOpts = _.assign({
-          finalizeContext: function(context, writerOpts, filteredCommits, keyCommit, originalCommits) {
+          defaultFinalizeContext: function(context, writerOpts, filteredCommits, keyCommit, originalCommits) {
             var firstCommit = originalCommits[0];
             var lastCommit = originalCommits[originalCommits.length - 1];
             var firstCommitHash = firstCommit ? firstCommit.hash : null;
@@ -264,6 +264,9 @@ function mergeConfig(options, context, gitRawCommitsOpts, parserOpts, writerOpts
             }
 
             return context;
+          },
+          finalizeContext: function() {
+            return this.defaultFinalizeContext.apply(this, arguments);
           }
         },
         config.writerOpts, {
diff --git a/readme.md b/readme.md
index 813008f..909d118 100644
--- a/readme.md
+++ b/readme.md
@@ -188,7 +188,17 @@ See the [conventional-changelog-writer](https://github.com/conventional-changelo
 
 Finalize context is used for generating above context.
 
-**NOTE:** If you overwrite this value the above context defaults will be gone.
+**NOTE:** If you overwrite this value the above context defaults will be gone. If you want to modify the result based on the default function, you could do:
+
+```js
+finalizeContext: function() {
+  var newContext = this.defaultFinalizeContext.apply(this, arguments);
+
+  // Modify newContext
+
+  return newContext;
+}
+```
 
 ##### reverse