Do not sort tags when sorting via --append-git-tag

Closes #197
Closes #210

src/tags.js

@@ -11,7 +11,7 @@ const fetchTags = async (options, remote) => {
     .split('\n')
     .map(parseTag(options))
     .filter(isValidTag(options))
-    .sort(sortTags)
+    .sort(sortTags(options))
 
   const { latestVersion, unreleased, unreleasedOnly, getCompareLink } = options
   if (latestVersion || unreleased || unreleasedOnly) {
@@ -87,7 +87,10 @@ const isValidTag = ({ tagPattern }) => ({ tag, version }) => {
   return semver.valid(version)
 }
 
-const sortTags = ({ version: a }, { version: b }) => {
+const sortTags = ({ appendGitTag }) => ({ version: a }, { version: b }) => {
+  if (/--sort/.test(appendGitTag)) {
+    return 0
+  }
   if (semver.valid(a) && semver.valid(b)) {
     return semver.rcompare(a, b)
   }

test/tags.js

@@ -113,6 +113,46 @@ describe('fetchTags', () => {
     expect(await fetchTags({ ...options, startingDate: '2000-05-01' })).to.have.lengthOf(1)
   })
 
+  it('sorts tags using semver', async () => {
+    mock('cmd', () => Promise.resolve([
+      '0.1.0---2000-02-01',
+      '0.2.0---2000-03-01',
+      '0.3.0---2000-04-01',
+      '0.2.1---2000-03-02',
+      '0.2.2---2000-03-03',
+      '1.0.0---2001-01-01'
+    ].join('\n')))
+    const tags = await fetchTags(options)
+    expect(tags.map(t => t.title)).to.deep.equal([
+      '1.0.0',
+      '0.3.0',
+      '0.2.2',
+      '0.2.1',
+      '0.2.0',
+      '0.1.0'
+    ])
+  })
+
+  it('does not sort when sorting via --append-git-tag', async () => {
+    mock('cmd', () => Promise.resolve([
+      '0.1.0---2000-02-01',
+      '0.2.0---2000-03-01',
+      '0.3.0---2000-04-01',
+      '0.2.1---2000-03-02',
+      '0.2.2---2000-03-03',
+      '1.0.0---2001-01-01'
+    ].join('\n')))
+    const tags = await fetchTags({ ...options, appendGitTag: '--sort=v:refname' })
+    expect(tags.map(t => t.title)).to.deep.equal([
+      '0.1.0',
+      '0.2.0',
+      '0.3.0',
+      '0.2.1',
+      '0.2.2',
+      '1.0.0'
+    ])
+  })
+
   it('supports partial semver tags', async () => {
     mock('cmd', () => Promise.resolve([
       'v0.1---2000-02-01',