Options for version and setting build number

.groovylintrc.json

@@ -1,9 +1,15 @@
 {
     "extends": "recommended",
     "rules": {
+        "CompileStatic": {
+            "enabled": false
+        },
         "DuplicateStringLiteral": {
             "enabled": false
         },
+        "FactoryMethodName": {
+            "enabled": false
+        },
         "Indentation": {
             "enabled": false
         }

vars/addVersionFromNexusRepo.groovy

@@ -1,8 +1,8 @@
 #!/usr/bin/env groovy
 
 /*
-Calculate the current version by querying a list of assets in a Nexus Repository. 
-Return '0.0.1' if there are no matching assets. 
+Calculate the current version by querying a list of assets in a Nexus Repository.
+Return '0.0.1' if there are no matching assets.
 
 Jenkins Plugin dependencies:
 
@@ -11,10 +11,20 @@ Jenkins Plugin dependencies:
 
 */
 
+// Define the enum
+enum Flags {
+
+    BUILDNUM_IS_COMMITS_SINCE_TAG,
+    BUILDNUM_IS_JOB_NUMBER,
+    BUILDNUM_IS_FROM_QUERY
+
+}
+
 Map call(Map config = [:]) {
     Map defaults = [
         nexusBase: 'https://repo.thejimnicholson.com',
         searchAPI: 'service/rest/v1/search',
+        build_flag: Flags.BUILDNUM_IS_FROM_QUERY,
         queryParams: [
           'repository': 'tools',
           'sort': 'name',
@@ -33,16 +43,41 @@ Map call(Map config = [:]) {
     body = response.content
     assets = readJSON text: body
     latest = assets.items.last()
-    runConfig.nexusQuery = nexusSearch
-    runConfig.latestVersion = latest.name
 
+    version = latest.version
+    if (version == 'null') {
+        matches = (latest.name =~ /.*-([0-9\.]+)-([0-9]+)\.)[0]/)[0]
+        version = matches[1]
+        query_build = matches[2]
+    }
+    switch (build_flag) {
+        case Flags.BUILDNUM_IS_COMMITS_SINCE_TAG:
+            build = sh(
+              script: 'git rev-list $(git tag | tail -1).. --count',
+              returnStdout: true
+            ).trim()
+            break
+        case Flags.BUILDNUM_IS_JOB_NUMBER:
+            build = env.BUILD_NUMBER
+            break
+        case Flags.BUILDNUM_IS_FROM_QUERY:
+            build = query_build
+            break
+        default:
+            build = query_build
+            break
+    }
+    runConfig.nexusQuery = nexusSearch
+    runConfig.latestVersion = version
+    runConfig.latestBuild = build
     return runConfig
 }
 
-def buildUrlWithQueryParams(baseUrl, queryParams) {
-    def url = baseUrl
+/* groovylint-disable-next-line MethodParameterTypeRequired, NoDef */
+String buildUrlWithQueryParams(baseUrl, queryParams) {
+    url = baseUrl
     if (!queryParams.empty) {
-        def queryParamsString = queryParams.collect { key, value ->
+        queryParamsString = queryParams.collect { key, value ->
             "${URLEncoder.encode(key, 'UTF-8')}=${URLEncoder.encode(value, 'UTF-8')}"
         }.join('&')
         url += '?' + queryParamsString