Add SENTRY_REPOSITORY env variable

Allow users to override the respository name passed to the cli.
This is useful for gitlab users where the the repository name is not necessarily the same
as the url (getsentry#21)

index.js

@@ -34,6 +34,7 @@ module.exports = {
     const sentryRelease = process.env.SENTRY_RELEASE || inputs.sentryRelease || process.env.COMMIT_REF
     const releasePrefix = process.env.SENTRY_RELEASE_PREFIX || inputs.releasePrefix || ''
     const sentryEnvironment = process.env.SENTRY_ENVIRONMENT || process.env.CONTEXT
+    const sentryRepository = process.env.SENTRY_REPOSITORY || inputs.sentryRepository
     const sourceMapPath = inputs.sourceMapPath || PUBLISH_DIR
     const sourceMapUrlPrefix = inputs.sourceMapUrlPrefix || DEFAULT_SOURCE_MAP_URL_PREFIX
 
@@ -108,7 +109,7 @@ async function createSentryRelease({ pluginApi, release, sentryEnvironment, sour
 
   // https://docs.sentry.io/cli/releases/#sentry-cli-commit-integration
   if (!inputs.skipSetCommits) {
-    const repository = process.env.REPOSITORY_URL.split(/[:/]/).slice(-2).join('/')
+    const repository = sentryRepository || process.env.REPOSITORY_URL.split(/[:/]/).slice(-2).join('/')
     try {
       await cli.releases.setCommits(release, {
         repo: repository,