Including tag-prefix

index.js

@@ -159,12 +159,16 @@ module.exports = (app, { getRouter }) => {
     }
 
     const targetCommitish = commitish || config['commitish'] || ref
-    const filterByCommitish = config['filter-by-commitish']
+    const {
+      'filter-by-commitish': filterByCommitish,
+      'tag-prefix': tagPrefix,
+    } = config
 
     const { draftRelease, lastRelease } = await findReleases({
       context,
       targetCommitish,
       filterByCommitish,
+      tagPrefix,
     })
 
     const { commits, pullRequests: mergedPullRequests } =

lib/default-config.js

@@ -3,6 +3,7 @@ const { SORT_BY, SORT_DIRECTIONS } = require('./sort-pull-requests')
 const DEFAULT_CONFIG = Object.freeze({
   'name-template': '',
   'tag-template': '',
+  'tag-prefix': '',
   'change-template': `* $TITLE (#$NUMBER) @$AUTHOR`,
   'change-title-escapes': '',
   'no-changes-template': `* No changes`,

lib/releases.js

@@ -21,6 +21,7 @@ const findReleases = async ({
   context,
   targetCommitish,
   filterByCommitish,
+  tagPrefix,
 }) => {
   let releases = await context.octokit.paginate(
     context.octokit.repos.listReleases.endpoint.merge(
@@ -32,9 +33,12 @@ const findReleases = async ({
 
   log({ context, message: `Found ${releases.length} releases` })
 
-  const filteredReleases = filterByCommitish
+  const commitishFilteredReleases = filterByCommitish
     ? releases.filter((r) => targetCommitish.match(`/${r.target_commitish}$`))
     : releases
+  const filteredReleases = tagPrefix
+    ? commitishFilteredReleases.filter((r) => r.tag_name.startsWith(tagPrefix))
+    : commitishFilteredReleases
   const sortedPublishedReleases = sortReleases(
     filteredReleases.filter((r) => !r.draft)
   )
@@ -301,7 +305,8 @@ const generateReleaseInfo = ({
     // Use the first override parameter to identify
     // a version, from the most accurate to the least
     version || tag || name,
-    resolveVersionKeyIncrement(mergedPullRequests, config)
+    resolveVersionKeyIncrement(mergedPullRequests, config),
+    config['tag-prefix']
   )
 
   if (versionInfo) {

lib/versions.js

@@ -136,24 +136,30 @@ const toSemver = (version) => {
   return semver.coerce(version)
 }
 
-const coerceVersion = (input) => {
+const coerceVersion = (input, tagPrefix) => {
   if (!input) {
     return
   }
 
+  const stripTag = (input) =>
+    tagPrefix && input.startsWith(tagPrefix)
+      ? input.slice(tagPrefix.length)
+      : input
+
   return typeof input === 'object'
-    ? toSemver(input.tag_name) || toSemver(input.name)
-    : toSemver(input)
+    ? toSemver(stripTag(input.tag_name)) || toSemver(stripTag(input.name))
+    : toSemver(stripTag(input))
 }
 
 const getVersionInfo = (
   release,
   template,
   inputVersion,
-  versionKeyIncrement
+  versionKeyIncrement,
+  tagPrefix
 ) => {
-  const version = coerceVersion(release)
-  inputVersion = coerceVersion(inputVersion)
+  const version = coerceVersion(release, tagPrefix)
+  inputVersion = coerceVersion(inputVersion, tagPrefix)
 
   if (!version && !inputVersion) {
     return defaultVersionInfo