[cli] Add -list-layer-hierarchy option

Example output:
group1/
  layer1.1
  layer1.2
  group1.1/
    layer1.1.1
group2/
  layer2.1

src/app/cli/app_options.cpp

@@ -74,6 +74,7 @@ AppOptions::AppOptions(int argc, const char* argv[])
   , m_scriptParam(m_po.add("script-param").requiresValue("name=value").description("Parameter for a script executed from the\nCLI that you can access with app.params"))
 #endif
   , m_listLayers(m_po.add("list-layers").description("List layers of the next given sprite\nor include layers in JSON data"))
+  , m_listLayerHierarchy(m_po.add("list-layer-hierarchy").description("List layers with groups of the next given sprite\nor include layers hierarchy in JSON data"))
   , m_listTags(m_po.add("list-tags").description("List tags of the next given sprite\nor include frame tags in JSON data"))
   , m_listSlices(m_po.add("list-slices").description("List slices of the next given sprite\nor include slices in JSON data"))
   , m_oneFrame(m_po.add("oneframe").description("Load just the first frame"))

src/app/cli/app_options.h

@@ -90,6 +90,7 @@ public:
   const Option& scriptParam() const { return m_scriptParam; }
 #endif
   const Option& listLayers() const { return m_listLayers; }
+  const Option& listLayerHierarchy() const { return m_listLayerHierarchy; }
   const Option& listTags() const { return m_listTags; }
   const Option& listSlices() const { return m_listSlices; }
   const Option& oneFrame() const { return m_oneFrame; }
@@ -164,6 +165,7 @@ private:
   Option& m_scriptParam;
 #endif
   Option& m_listLayers;
+  Option& m_listLayerHierarchy;
   Option& m_listTags;
   Option& m_listSlices;
   Option& m_oneFrame;

src/app/cli/cli_open_file.h

@@ -37,6 +37,7 @@ namespace app {
     bool splitGrid = false;
     bool allLayers = false;
     bool listLayers = false;
+    bool listLayerHierarchy = false;
     bool listTags = false;
     bool listSlices = false;
     bool ignoreEmpty = false;

src/app/cli/cli_processor.cpp

@@ -587,6 +587,13 @@ int CliProcessor::process(Context* ctx)
           else
             cof.listLayers = true;
         }
+        // --list-layer-hierarchy
+        else if (opt == &m_options.listLayerHierarchy()) {
+          if (m_exporter)
+            m_exporter->setListLayerHierarchy(true);
+          else
+            cof.listLayerHierarchy = true;
+        }
         // --list-tags
         else if (opt == &m_options.listTags()) {
           if (m_exporter)

src/app/cli/default_cli_delegate.cpp

@@ -67,6 +67,10 @@ void DefaultCliDelegate::afterOpenFile(const CliOpenFile& cof)
       std::cout << layer->name() << "\n";
   }
 
+  if (cof.listLayerHierarchy) {
+    std::cout << cof.document->sprite()->visibleLayerHierarchyAsString() << "\n";
+  }
+
   if (cof.listTags) {
     for (doc::Tag* tag : cof.document->sprite()->tags())
       std::cout << tag->name() << "\n";

src/app/cli/preview_cli_delegate.cpp

@@ -67,6 +67,9 @@ void PreviewCliDelegate::afterOpenFile(const CliOpenFile& cof)
   if (cof.listLayers)
     std::cout << "  - List layers\n";
 
+  if (cof.listLayerHierarchy)
+    std::cout << "  - List layer hierarchy\n";
+
   if (cof.listTags)
     std::cout << "  - List tags\n";
 

src/app/doc_exporter.cpp

@@ -623,6 +623,7 @@ void DocExporter::reset()
   m_splitTags = false;
   m_listTags = false;
   m_listLayers = false;
+  m_listLayerHierarchy = false;
   m_listSlices = false;
   m_documents.clear();
 }
@@ -1487,7 +1488,7 @@ void DocExporter::createDataFile(const Samples& samples,
   }
 
   // meta.layers
-  if (m_listLayers) {
+  if (m_listLayers || m_listLayerHierarchy) {
     LayerList metaLayers;
     for (auto& item : m_documents) {
       if (item.isOneImageOnly())

src/app/doc_exporter.h

@@ -77,6 +77,7 @@ namespace app {
     void setSplitTags(bool splitTags) { m_splitTags = splitTags; }
     void setListTags(bool value) { m_listTags = value; }
     void setListLayers(bool value) { m_listLayers = value; }
+    void setListLayerHierarchy(bool value) { m_listLayerHierarchy = value; }
     void setListSlices(bool value) { m_listSlices = value; }
 
     void addImage(
@@ -180,6 +181,7 @@ namespace app {
     bool m_splitTags;
     bool m_listTags;
     bool m_listLayers;
+    bool m_listLayerHierarchy;
     bool m_listSlices;
     Items m_documents;
 

src/doc/layer.cpp

@@ -540,6 +540,20 @@ void LayerGroup::allTilemaps(LayerList& list) const
   }
 }
 
+std::string LayerGroup::visibleLayerHierarchyAsString(const std::string& indent) const
+{
+  std::string str;
+  for (Layer* child : m_layers) {
+    if (!child->isVisible())
+      continue;
+
+    str += indent + child->name() + (child->isGroup() ? "/" : "") + "\n";
+    if (child->isGroup())
+      str += static_cast<LayerGroup*>(child)->visibleLayerHierarchyAsString(indent+"  ");
+  }
+  return str;
+}
+
 void LayerGroup::getCels(CelList& cels) const
 {
   for (const Layer* layer : m_layers)

src/doc/layer.h

@@ -215,6 +215,7 @@ namespace doc {
     void allVisibleReferenceLayers(LayerList& list) const;
     void allBrowsableLayers(LayerList& list) const;
     void allTilemaps(LayerList& list) const;
+    std::string visibleLayerHierarchyAsString(const std::string& indent) const;
 
     void getCels(CelList& cels) const override;
     void displaceFrames(frame_t fromThis, frame_t delta) override;

src/doc/sprite.cpp

@@ -773,6 +773,11 @@ LayerList Sprite::allTilemaps() const
   return list;
 }
 
+std::string Sprite::visibleLayerHierarchyAsString() const
+{
+  return m_root->visibleLayerHierarchyAsString("");
+}
+
 CelsRange Sprite::cels() const
 {
   SelectedFrames selFrames;

src/doc/sprite.h

@@ -219,6 +219,7 @@ namespace doc {
     LayerList allVisibleReferenceLayers() const;
     LayerList allBrowsableLayers() const;
     LayerList allTilemaps() const;
+    std::string visibleLayerHierarchyAsString() const;
 
     CelsRange cels() const;
     CelsRange cels(frame_t frame) const;