Add --tag-prefix option

Closes #22

README.md

@@ -35,6 +35,7 @@ Options:
   -i, --issue-url [url]          # override url for issues, use {id} for issue id
       --issue-pattern [regex]    # override regex pattern for issues in commit messages
       --starting-commit [hash]   # starting commit to use for changelog generation
+      --tag-prefix [prefix]      # prefix used in version tags, default: v
   -V, --version                  # output the version number
   -h, --help                     # output usage information
 
@@ -65,6 +66,13 @@ By default, changelogs will link to the appropriate pages for commits, issues an
 auto-changelog --issue-url https://www.redmine.org/issues/{id}
 ```
 
+Use `--tag-prefix [prefix]` if you prefix your version tags with a certain string:
+
+```bash
+# When all versions are tagged like my-package/1.2.3
+auto-changelog --tag-prefix my-package/
+```
+
 You can also set any option in `package.json` under the `auto-changelog` key, using camelCase options:
 
 ```js

src/commits.js

@@ -5,7 +5,6 @@ const MESSAGE_SEPARATOR = '__AUTO_CHANGELOG_MESSAGE_SEPARATOR__'
 const LOG_FORMAT = COMMIT_SEPARATOR + '%H%n%D%n%aI%n%an%n%ae%n%B' + MESSAGE_SEPARATOR
 const MATCH_COMMIT = /(.*)\n(.*)\n(.*)\n(.*)\n(.*)\n([\S\s]+)/
 const MATCH_STATS = /(\d+) files? changed(?:, (\d+) insertions?...)?(?:, (\d+) deletions?...)?/
-const TAG_PREFIX = 'tag: '
 
 // https://help.github.com/articles/closing-issues-via-commit-messages
 const DEFAULT_FIX_PATTERN = /(?:close[sd]?|fixe?[sd]?|resolve[sd]?)\s(?:#(\d+)|(https?:\/\/.+?\/(?:issues|pull|pull-requests|merge_requests)\/(\d+)))/gi
@@ -48,7 +47,7 @@ function parseCommit (commit, origin, options = {}) {
     author,
     email,
     date,
-    tag: getTag(refs),
+    tag: getTag(refs, options),
     subject: getSubject(message),
     message: message.trim(),
     fixes: getFixes(message, origin, options),
@@ -58,11 +57,11 @@ function parseCommit (commit, origin, options = {}) {
   }
 }
 
-function getTag (refs) {
+function getTag (refs, options) {
   if (!refs) return null
   for (let ref of refs.split(', ')) {
-    if (ref.indexOf(TAG_PREFIX) === 0) {
-      return ref.replace(TAG_PREFIX, '')
+    if (ref.indexOf(`tag: ${options.tagPrefix}`) === 0) {
+      return ref.replace('tag: ', '')
     }
   }
   return null

src/run.js

@@ -13,10 +13,10 @@ const DEFAULT_OPTIONS = {
   output: 'CHANGELOG.md',
   template: 'compact',
   remote: 'origin',
-  commitLimit: 3
+  commitLimit: 3,
+  tagPrefix: 'v'
 }
 
-const NPM_VERSION_TAG_PREFIX = 'v'
 const PACKAGE_OPTIONS_KEY = 'auto-changelog'
 
 function getOptions (argv, pkg) {
@@ -31,6 +31,7 @@ function getOptions (argv, pkg) {
     .option('-i, --issue-url [url]', `override url for issues, use {id} for issue id`)
     .option('--issue-pattern [regex]', `override regex pattern for issues in commit messages`)
     .option('--starting-commit [hash]', `starting commit to use for changelog generation`)
+    .option('--tag-prefix [prefix]', `prefix used in version tags, default: ${DEFAULT_OPTIONS.tagPrefix}`)
     .version(version)
     .parse(argv)
 
@@ -58,7 +59,7 @@ function getLatestVersion (options, pkg) {
     return options.latestVersion
   }
   if (options.package) {
-    return NPM_VERSION_TAG_PREFIX + pkg.version
+    return options.tagPrefix + pkg.version
   }
   return null
 }

test/commits.js

@@ -16,19 +16,23 @@ const parseCommits = __get__('parseCommits')
 const getFixes = __get__('getFixes')
 const getMerge = __get__('getMerge')
 
+const options = {
+  tagPrefix: 'v'
+}
+
 describe('fetchCommits', () => {
   it('fetches commits', async () => {
     const gitLog = await readFile(join(__dirname, 'data', 'git-log.txt'), 'utf-8')
     mock('cmd', () => gitLog)
-    expect(await fetchCommits(origins.github)).to.deep.equal(commits)
+    expect(await fetchCommits(origins.github, options)).to.deep.equal(commits)
     unmock('cmd')
   })
 })
 
 describe('parseCommits', () => {
   it('parses commits', async () => {
     const gitLog = await readFile(join(__dirname, 'data', 'git-log.txt'), 'utf-8')
-    expect(parseCommits(gitLog, origins.github)).to.deep.equal(commits)
+    expect(parseCommits(gitLog, origins.github, options)).to.deep.equal(commits)
   })
 
   it('parses bitbucket commit', async () => {