Add gradle task for publishing to downloads page

gradle/root/publishing.gradle

@@ -113,6 +113,25 @@ def publishDownloadsTask = tasks.register('publishDownloads', PublishToRawRepoTa
 
 publish.dependsOn publishDownloadsTask
 
+def publishReleaseInfoAndLatestTask = tasks.register('publishReleaseInfoAndLatest', PublishToRawRepoTask) {
+    group = 'publishing'
+    description = 'Publish release_info.json and startup/latest.xml to Nexus downloads.'
+    host = 'https://artifacts.unidata.ucar.edu/'
+    repoName = 'downloads-tds'
+
+    publishSrc = new File(rootProject.getProjectDir(), "project-files/downloads/")
+
+    onlyIf {
+        // Will be evaluated at task execution time, not during configuration.
+        // Fails the build if the specified properties haven't been provided.
+        username = getPropertyOrFailBuild NEXUS_USERNAME_KEY
+        password = getPropertyOrFailBuild NEXUS_PASSWORD_KEY
+        return true
+    }
+}
+
+publish.dependsOn publishReleaseInfoAndLatestTask
+
 // The "publish" tasks require credentials for our Nexus server, which they look for in Gradle properties.
 // If those properties (i.e. NEXUS_USERNAME_KEY and NEXUS_PASSWORD_KEY) haven't been provided, the build will fail.
 // Therefore, we only want to configure credentials when a "publish" task is part of the execution plan. Otherwise,

project-files/downloads-page/release_info.json → project-files/downloads/release_info.json

@@ -29,21 +29,10 @@
             "SHA256": "tdm-5.5-SNAPSHOT.jar.sha256"
           },
           "info": "THREDDS Data Manager (TDM) for the latest snapshot release (version 5.5 SNAPSHOT) "
-        },
-        "thredds_iso_jar": {
-          "baseURL": "https://artifacts.unidata.ucar.edu/repository/downloads-tds/5.5/",
-          "type": "library",
-          "package": "tds-plugin-2.4.6-SNAPSHOT-jar-with-dependencies.jar",
-          "name": "THREDDS ISO Plugin (Jar file)",
-          "hash": {
-            "MD5": "tds-plugin-2.4.6-SNAPSHOT-jar-with-dependencies.jar.md5",
-            "SHA1": "tds-plugin-2.4.6-SNAPSHOT-jar-with-dependencies.jar.sha1",
-            "SHA256": "tds-plugin-2.4.6-SNAPSHOT-jar-with-dependencies.jar.sha256"
-          },
-          "info": "THREDDS Data Manager (TDM) for the latest snapshot release (version 5.5 SNAPSHOT) "
         }
       }
-    }, {
+    },
+    {
       "version": "5.4",
       "releaseDate": "2022-07-01",
       "status": "current",