From 7bc5ada9549d144f78885b31b43386e127dcdb85 Mon Sep 17 00:00:00 2001
From: Pete Cook <pete@cookpete.com>
Date: Wed, 21 Feb 2018 06:56:49 +0000
Subject: [PATCH] Add tag prefix to compare URLs

Fixes https://github.com/CookPete/auto-changelog/issues/30
---
 src/releases.js  | 6 +++++-
 test/releases.js | 8 +++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/releases.js b/src/releases.js
index 16e3cf50..5d2afabf 100644
--- a/src/releases.js
+++ b/src/releases.js
@@ -12,7 +12,11 @@ export function parseReleases (commits, remote, latestVersion, options) {
       if (release.tag || options.unreleased) {
         releases.push({
           ...release,
-          href: getCompareLink(commit.tag, release.tag || 'HEAD', remote),
+          href: getCompareLink(
+            `${options.tagPrefix}${commit.tag}`,
+            `${options.tagPrefix}${release.tag}` || 'HEAD',
+            remote
+          ),
           commits: release.commits.sort(sortCommits),
           major: commit.tag && release.tag && semver.diff(commit.tag, release.tag) === 'major'
         })
diff --git a/test/releases.js b/test/releases.js
index d5bae985..afa2b491 100644
--- a/test/releases.js
+++ b/test/releases.js
@@ -8,7 +8,8 @@ import { parseReleases } from '../src/releases'
 
 const options = {
   unreleased: false,
-  commitLimit: 3
+  commitLimit: 3,
+  tagPrefix: ''
 }
 
 describe('parseReleases', () => {
@@ -25,6 +26,11 @@ describe('parseReleases', () => {
     expect(releases[0].href).to.equal('https://bitbucket.org/user/repo/compare/v1.0.0%0Dv0.1.0')
   })
 
+  it('includes tag prefix in compare urls', () => {
+    const releases = parseReleases(commits, remotes.bitbucket, null, { ...options, tagPrefix: 'prefix-' })
+    expect(releases[0].href).to.equal('https://bitbucket.org/user/repo/compare/prefix-v1.0.0%0Dprefix-v0.1.0')
+  })
+
   it('supports a version override', () => {
     const result = parseReleases(commits, remotes.github, 'v3.0.0', options)
     expect(result).to.be.an('array')