Allow plus in semver [Nexus aur bintray chocolatey dubversion myget nuget powershellgallery resharper] (#2987)

* Also allow + in semver

* Add test for + in semver version

* Add more dashes to test version

* Fix tests

services/nexus/nexus.tester.js

@@ -86,6 +86,24 @@ t.create('live: repository version of an inexistent artifact')
     value: 'artifact not found',
   })
 
+t.create('snapshot version with + in version')
+  .get(
+    '/s/https/repository.jboss.org/nexus/com.progress.fuse/fusehq.json?style=_shields_test'
+  )
+  .intercept(nock =>
+    nock('https://repository.jboss.org/nexus')
+      .get('/service/local/lucene/search')
+      .query({ g: 'com.progress.fuse', a: 'fusehq' })
+      .reply(200, { data: [{ version: '7.0.1+19-8844c122-SNAPSHOT' }] })
+  )
+  .expectJSONTypes(
+    Joi.object().keys({
+      name: 'nexus',
+      color: 'orange',
+      value: isVersion,
+    })
+  )
+
 t.create('search snapshot version not in latestSnapshot')
   .get(
     '/s/https/repository.jboss.org/nexus/com.progress.fuse/fusehq.json?style=_shields_test'

services/test-validators.js

@@ -21,9 +21,9 @@ const isVPlusDottedVersionNClauses = withRegex(/^v\d+(\.\d+)*$/)
 
 // matches a version number with N 'clauses'
 // and an optional text suffix
-// e.g: -beta, -preview1, -release-candidate etc
+// e.g: -beta, -preview1, -release-candidate, +beta etc
 const isVPlusDottedVersionNClausesWithOptionalSuffix = withRegex(
-  /^v\d+(\.\d+)*(-.*)?$/
+  /^v\d+(\.\d+)*([-+].*)?$/
 )
 
 // Simple regex for test Composer versions rule

services/validators.js

@@ -21,7 +21,7 @@ module.exports = {
     .required(),
 
   optionalDottedVersionNClausesWithOptionalSuffix: Joi.string().regex(
-    /^\d+(\.\d+)*(-.*)?$/
+    /^\d+(\.\d+)*([-+].*)?$/
   ),
 
   // TODO This accepts URLs with query strings and fragments, which for some