public void run()

in src/main/java/org/apache/sling/tooling/lc/LaunchpadComparer.java [61:105]
28 lines of code
2 McCabe index (conditional complexity)

    public void run() throws Exception {
        
        System.out.format("Computing differences between Launchpad versions %s and %s...%n", 
                firstVersion, secondVersion);
        
        // 1. download artifacts
        AetherSetup aether = new AetherSetup();

        File fromFile = aether.download(Artifacts.launchpadCoordinates(firstVersion));
        File toFile = aether.download(Artifacts.launchpadCoordinates(secondVersion));

        // 2. parse artifact definitions
        Map<ArtifactKey, Artifact> from = readArtifactsFromModel(fromFile);
        Map<ArtifactKey, Artifact> to = readArtifactsFromModel(toFile);
        
        
        // 3. generate added / removed / changed
        Set<Artifact> removed = Sets.difference(from.keySet(), to.keySet()).stream()
            .map( k -> from.get(k))
            .collect(Collectors.toSet());

        Set<Artifact> added = Sets.difference(to.keySet(), from.keySet()).stream()
                .map( k -> to.get(k))
                .collect(Collectors.toSet());

        Map<ArtifactKey, VersionChange> changed = to.values().stream()
                .filter( k -> !added.contains(k) && !removed.contains(k))
                .map( k -> new ArtifactKey(k))
                .filter( k -> !Objects.equals(to.get(k).getVersion(), from.get(k).getVersion()))
                .collect(Collectors.toMap( Function.identity(), k -> new VersionChange(from.get(k).getVersion(), to.get(k).getVersion())));

        // 4. output changes
        
        System.out.println("Added ");
        added.stream().sorted().forEach(LaunchpadComparer::outputFormatted);
        
        System.out.println("Removed ");
        removed.stream().sorted().forEach(LaunchpadComparer::outputFormatted);
        
        System.out.println("Changed");
        changed.entrySet().stream()
            .sorted( (a, b) -> a.getKey().compareTo(b.getKey()) )
            .forEach(this::outputFormatted);        
        
    }