Add version to openapi definition

Author: sonallux

spotify-web-api-generator-open-api/spotify-web-api-openapi.yml

@@ -1,7 +1,7 @@
 openapi: 3.0.1
 info:
   title: Spotify Web API
-  version: 0.0.1
+  version: 2021.3.31
 externalDocs:
   description: Find more info on the official Spotify Web API Reference
   url: https://developer.spotify.com/documentation/web-api/reference

spotify-web-api-generator-open-api/src/main/java/de/sonallux/spotify/generator/openapi/CLI.java

@@ -110,13 +110,13 @@ public String[] getVersion() throws Exception {
                     var title = get(attributes, "Implementation-Title");
                     if (IMPLEMENTATION_TITLE.equals(title)) {
                         var version = get(attributes, "Implementation-Version");
-                        return new String[] { title + " version \"" + version + "\"" };
+                        return new String[] { IMPLEMENTATION_TITLE, version.toString() };
                     }
                 } catch (IOException e) {
                     return new String[] { "Unable to read manifest from " + url + ": " + e };
                 }
             }
-            return new String[] { IMPLEMENTATION_TITLE + " version \"unknown\"" };
+            return new String[] { IMPLEMENTATION_TITLE, "unknown" };
         }
 
         private static Object get(Attributes attributes, String key) {

spotify-web-api-generator-open-api/src/main/java/de/sonallux/spotify/generator/openapi/OpenApiGenerator.java

@@ -44,7 +44,7 @@ public OpenAPI generate(SpotifyWebApi apiDocumentation) {
                 )
                 .info(new Info()
                         .title("Spotify Web API")
-                        .version("0.0.1")
+                        .version(VersionProvider.getVersion())
                 )
                 .servers(List.of(new Server().url(apiDocumentation.getEndpointUrl())))
                 .components(new Components()

spotify-web-api-generator-open-api/src/main/java/de/sonallux/spotify/generator/openapi/VersionProvider.java

@@ -0,0 +1,42 @@
+package de.sonallux.spotify.generator.openapi;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.regex.Pattern;
+
+public class VersionProvider {
+    private static final Pattern VERSION_PATTERN = Pattern.compile("<version>([0-9.]+)</version>");
+
+    public static String getVersion() {
+        try {
+            var versions = new CLI.ManifestVersionProvider().getVersion();
+            if (!"unknown".equals(versions[1])) {
+                return versions[1];
+            }
+        } catch (Exception ignore) {
+        }
+
+        try {
+            var lines = Files.readAllLines(Path.of("./pom.xml"));
+            var versionLine = -1;
+            for (int i = 0; i < lines.size(); i++) {
+                if ("<artifactId>spotify-web-api-parent</artifactId>".equals(lines.get(i).trim())) {
+                    versionLine = i + 1;
+                    break;
+                }
+            }
+
+            if (versionLine != -1) {
+                var matcher = VERSION_PATTERN.matcher(lines.get(versionLine).trim());
+                if (matcher.matches()) {
+                    return matcher.group(1);
+                }
+            }
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+        return "unknown";
+    }
+}