Read REUSE.toml, if license is missing #49

Signed-off-by: Mārtiņš Avots <martins.avots@splitcells.net>

Author: martins-avots

projects/net.splitcells.maven.plugin.resource.list/src/main/java/net/splitcells/maven/plugin/resource/list/MetaData.java

@@ -16,7 +16,11 @@
 package net.splitcells.maven.plugin.resource.list;
 
 import lombok.val;
+import org.tomlj.Toml;
 
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.regex.Pattern;
 
 public class MetaData {
@@ -28,7 +32,7 @@ public class MetaData {
     String license;
     String copyrightText;
 
-    public MetaData parseMetaData(String fileContent) {
+    public MetaData parseMetaData(Path projectPath, String fileContent) {
         val licenseMatch = SPX_LICENSE.matcher(fileContent);
         if (licenseMatch.find()) {
             license = licenseMatch.group(2);
@@ -37,6 +41,20 @@ public MetaData parseMetaData(String fileContent) {
         if (copyrightMatch.find()) {
             copyrightText = copyrightMatch.group(2);
         }
+        if (license == null) {
+            val reuseToml = projectPath.resolve("REUSE.toml");
+            if (Files.exists(reuseToml)) {
+                try {
+                    val tomlParsing = Toml.parse(reuseToml);
+                    if (!tomlParsing.errors().isEmpty()) {
+                        throw new RuntimeException("The REUSE TOML file containing license data is not correct: " + reuseToml);
+                    }
+                    System.out.println(tomlParsing + " was successfully parsed.");
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
         return this;
     }
 

projects/net.splitcells.maven.plugin.resource.list/src/main/java/net/splitcells/maven/plugin/resource/list/ResourceListMojo.java

@@ -117,7 +117,7 @@ public void execute() throws MojoExecutionException {
                             throw new RuntimeException("Could not create folder for meta data file: " + metaFileFolder, e);
                         }
                         final var metaData = new MetaData();
-                        metaData.parseMetaData(resourceContent);
+                        metaData.parseMetaData(project.getBasedir().toPath(), resourceContent);
                         try (final BufferedWriter metaWriter = new BufferedWriter(new FileWriter(metaFilePath.toFile()))) {
                             metaWriter.write(metaData.toString());
                         } catch (IOException e) {