Add --flat argument to data generators to not create data in mod spec…

…ific directores.

Useful For Forge's test mods mainly.
Standardized data gen cache file's folder separators.
Added ItemModelProvider to BlockStateProvider for cleaner datagen code.
Added .gitattributes to fix datagen json's line endings correct on windows.

.gitattributes

@@ -14,3 +14,10 @@
 *.cfg text eol=lf
 *.py text eol=lf
 *.jks binary
+
+# Disable autocrlf on generated files, they always generate with LF
+src/generated/**/.cache/cache text eol=lf
+src/generated/**/*.json text eol=lf
+src/generated_test/**/.cache/cache text eol=lf
+src/generated_test/**/*.json text eol=lf
+

build.gradle

@@ -352,8 +352,11 @@ project(':forge') {
                     tests { sources  sourceSets.test }
                 }
 
-                args '--mod', 'data_gen_test', '--all', '--output', rootProject.file('src/generated_test/resources/'), '--validate',
-                        '--existing', sourceSets.main.resources.srcDirs[0]
+                args '--flat', '--all', '--validate',
+                    '--mod', 'data_gen_test', 
+                    '--mod', 'piston_event_test', 
+                    '--output', rootProject.file('src/generated_test/resources/'),
+                    '--existing', sourceSets.main.resources.srcDirs[0]
             }
         }
     }
@@ -1074,6 +1077,7 @@ project(':forge') {
                 MAPPING_VERSION: MAPPING_VERSION
             ])
             rename 'gitignore\\.txt', '.gitignore'
+            rename 'gitattributes\\.txt', '.gitattributes'
         }
     }
 

mdk/gitattributes.txt

@@ -0,0 +1,5 @@
+# Disable autocrlf on generated files, they always generate with LF
+# Add any extra files or paths here to make git stop saying they
+# are changed when only line endings change.
+src/generated/**/.cache/cache text eol=lf
+src/generated/**/*.json text eol=lf

patches/minecraft/net/minecraft/data/DataGenerator.java.patch

@@ -1,6 +1,10 @@
 --- a/net/minecraft/data/DataGenerator.java
 +++ b/net/minecraft/data/DataGenerator.java
-@@ -19,7 +19,7 @@
+@@ -16,10 +16,11 @@
+    private final Collection<Path> field_200394_b;
+    private final Path field_200395_c;
+    private final List<IDataProvider> field_200396_d = Lists.newArrayList();
++   private final List<IDataProvider> providerView = java.util.Collections.unmodifiableList(field_200396_d);
 
     public DataGenerator(Path p_i48266_1_, Collection<Path> p_i48266_2_) {
        this.field_200395_c = p_i48266_1_;
@@ -9,18 +13,22 @@
     }
 
     public Collection<Path> func_200389_a() {
-@@ -38,6 +38,7 @@
+@@ -38,6 +39,7 @@
 
        for(IDataProvider idataprovider : this.field_200396_d) {
           field_200393_a.info("Starting provider: {}", (Object)idataprovider.func_200397_b());
 +         net.minecraftforge.fml.StartupMessageManager.addModMessage("Generating: " + idataprovider.func_200397_b());
           stopwatch1.start();
           idataprovider.func_200398_a(directorycache);
           stopwatch1.stop();
-@@ -53,6 +54,10 @@
+@@ -53,6 +55,14 @@
        this.field_200396_d.add(p_200390_1_);
     }
 
++   public List<IDataProvider> getProviders() {
++       return this.providerView;
++   }
++
 +   public void addInput(Path value) {
 +      this.field_200394_b.add(value);
 +   }

patches/minecraft/net/minecraft/data/DirectoryCache.java.patch

@@ -9,3 +9,12 @@
     private final Set<Path> field_218457_g = Sets.newHashSet();
 
     public DirectoryCache(Path p_i49352_1_, String p_i49352_2_) throws IOException {
+@@ -55,7 +55,7 @@
+       }
+
+       IOUtils.writeLines(this.field_208329_f.entrySet().stream().map((p_208319_1_) -> {
+-         return (String)p_208319_1_.getValue() + ' ' + this.field_208325_b.relativize(p_208319_1_.getKey());
++         return (String)p_208319_1_.getValue() + ' ' + this.field_208325_b.relativize(p_208319_1_.getKey()).toString().replace('\\', '/'); //Forge: Standardize file paths.
+       }).collect(Collectors.toList()), System.lineSeparator(), writer);
+       writer.close();
+       field_208324_a.debug("Caching: cache hits: {}, created: {} removed: {}", this.field_208327_d, this.field_208329_f.size() - this.field_208327_d, this.field_208328_e.size());

patches/minecraft/net/minecraft/data/Main.java.patch

@@ -1,19 +1,20 @@
 --- a/net/minecraft/data/Main.java
 +++ b/net/minecraft/data/Main.java
-@@ -21,8 +21,11 @@
+@@ -21,8 +21,12 @@
        OptionSpec<Void> optionspec6 = optionparser.accepts("all", "Include all generators");
        OptionSpec<String> optionspec7 = optionparser.accepts("output", "Output folder").withRequiredArg().defaultsTo("generated");
        OptionSpec<String> optionspec8 = optionparser.accepts("input", "Input folder").withRequiredArg();
 +      OptionSpec<String> existing = optionparser.accepts("existing", "Existing resource packs that generated resources can reference").withRequiredArg();
 +      OptionSpec<java.io.File> gameDir = optionparser.accepts("gameDir").withRequiredArg().ofType(java.io.File.class).defaultsTo(new java.io.File(".")).required(); //Need by modlauncher, so lets just eat it
 +      OptionSpec<String> mod = optionparser.accepts("mod", "A modid to dump").withRequiredArg().withValuesSeparatedBy(",");
++      OptionSpec<Void> flat = optionparser.accepts("flat", "Do not append modid prefix to output directory when generating for multiple mods");
        OptionSet optionset = optionparser.parse(p_main_0_);
 -      if (!optionset.has(optionspec) && optionset.hasOptions()) {
 +      if (!optionset.has(optionspec) && optionset.hasOptions() && !(optionset.specs().size() == 1 && optionset.has(gameDir))) {
           Path path = Paths.get(optionspec7.value(optionset));
           boolean flag = optionset.has(optionspec6);
           boolean flag1 = flag || optionset.has(optionspec2);
-@@ -30,10 +33,12 @@
+@@ -30,10 +34,13 @@
           boolean flag3 = flag || optionset.has(optionspec3);
           boolean flag4 = flag || optionset.has(optionspec4);
           boolean flag5 = flag || optionset.has(optionspec5);
@@ -24,9 +25,10 @@
 +         Collection<Path> inputs = optionset.valuesOf(optionspec8).stream().map(Paths::get).collect(Collectors.toList());
 +         Collection<Path> existingPacks = optionset.valuesOf(existing).stream().map(Paths::get).collect(Collectors.toList());
 +         java.util.Set<String> mods = new java.util.HashSet<>(optionset.valuesOf(mod));
-+         net.minecraftforge.fml.ModLoader.get().runDataGenerator(mods, path, inputs, existingPacks, flag2, flag1, flag3, flag4, flag5);
++         boolean isFlat = mods.isEmpty() || optionset.has(flat);
++         net.minecraftforge.fml.ModLoader.get().runDataGenerator(mods, path, inputs, existingPacks, flag2, flag1, flag3, flag4, flag5, isFlat);
 +         if (mods.contains("minecraft") || mods.isEmpty())
-+            func_200264_a(mods.isEmpty() ? path : path.resolve("minecraft"), inputs, flag1, flag2, flag3, flag4, flag5).func_200392_c();
++            func_200264_a(isFlat ? path : path.resolve("minecraft"), inputs, flag1, flag2, flag3, flag4, flag5).func_200392_c();
        } else {
           optionparser.printHelpOn(System.out);
        }

src/generated_test/resources/.cache/cache

@@ -1,66 +1,69 @@
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-e987df4921fc71322984556e9617915d4df2bdff assets\data_gen_test\models\block\acacia_door_bottom_hinge.json
-5103910559b21ce74f315358935a3e582b0c45cd assets\data_gen_test\models\block\acacia_door_top.json
-590e2cc0ba335ffc618441d6fcc582401ee646cc assets\data_gen_test\models\block\acacia_door_top_hinge.json
-9c4e371aace89c681b4ea367975f9b4569acaada assets\data_gen_test\models\block\acacia_fence_gate.json
-1e2e4ace5adef04a3cee3d528c33382a18f40513 assets\data_gen_test\models\block\acacia_fence_gate_open.json
-557312487766c0801958d72d13b0ac16d8d5d9fd assets\data_gen_test\models\block\acacia_fence_gate_wall.json
-dd8d2e76831b2a445737f378458db5c505a9b03d assets\data_gen_test\models\block\acacia_fence_gate_wall_open.json
-4d5b8be3e004e34e75c0f7d415595e14f8985d6c assets\data_gen_test\models\block\acacia_fence_post.json
-90491fcfa42ee4d8ec7958655866f5a3b55811ad assets\data_gen_test\models\block\acacia_fence_side.json
-9bf079dec64b632446a867744149d0fccff6fc70 assets\data_gen_test\models\block\acacia_log.json
-462367a50d9ab2306ca642a72b5fd20c217dc451 assets\data_gen_test\models\block\acacia_slab.json
-3032bec1f17684ceef914e3763b9be773d17b02f assets\data_gen_test\models\block\acacia_slab_top.json
-3611756373823dced8f5db5237a6ee0a5f3cbb7a assets\data_gen_test\models\block\acacia_stairs.json
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+acbf9f921b05785d49d8526870ba13aee1a322f7 assets/minecraft/blockstates/cobblestone_wall.json
+6a3c8e2691b6b7f39f1236a17bb6aa145a9db53f assets/minecraft/blockstates/furnace.json
+1b2a1344020237ab877e27c43934b042d259bf36 assets/minecraft/blockstates/glass_pane.json
+bf2e445b48b024354a69138b20a4a4a8aa5d15d1 assets/minecraft/blockstates/oak_trapdoor.json
+9c4cc92efb78811e8d70a383a1a89eb75b69db04 assets/minecraft/blockstates/stone.json
+570fdd86046df75a073b759ff7aaf4c4caf43115 assets/minecraft/blockstates/torch.json
+a012d6d92bab1c91913bd0f2dc0492a0fce916f2 assets/minecraft/blockstates/wall_torch.json
+273e0ed992d227f09f1c83bc22d066fb68d03c84 assets/piston_event_test/blockstates/shiftonmove.json
+108951e1323586dab98f296c9ead9b2084eb879a assets/piston_event_test/models/block/shiftonmove.json
+f51f026a75e27a0a53a76771d553c0e3385a2966 assets/piston_event_test/models/item/shiftonmove.json
+4fbaf6f4a3ea05cc071076e27f44ac81f9cc50e3 data/data_gen_test/advancements/conditional.json
+ed4cbf1a3a2f5d8969f6346fdc9acdbe81d0c919 data/data_gen_test/recipes/conditional.json
+2c3e2073a1597baaa2970de5ae1649781f87aef8 data/data_gen_test/tags/blocks/test.json

src/generated_test/resources/assets/piston_event_test/blockstates/shiftonmove.json

@@ -0,0 +1,7 @@
+{
+  "variants": {
+    "": {
+      "model": "piston_event_test:block/shiftonmove"
+    }
+  }
+}

src/generated_test/resources/assets/piston_event_test/models/block/shiftonmove.json

@@ -0,0 +1,6 @@
+{
+  "parent": "block/cube_all",
+  "textures": {
+    "all": "block/furnace_top"
+  }
+}

src/generated_test/resources/assets/piston_event_test/models/item/shiftonmove.json

@@ -0,0 +1,3 @@
+{
+  "parent": "piston_event_test:block/shiftonmove"
+}

src/main/java/net/minecraftforge/client/model/generators/BlockModelProvider.java

@@ -19,6 +19,8 @@
 
 package net.minecraftforge.client.model.generators;
 
+import javax.annotation.Nonnull;
+
 import net.minecraft.data.DataGenerator;
 
 /**
@@ -30,4 +32,10 @@ public abstract class BlockModelProvider extends ModelProvider<BlockModelBuilder
     public BlockModelProvider(DataGenerator generator, String modid, ExistingFileHelper existingFileHelper) {
         super(generator, modid, BLOCK_FOLDER, BlockModelBuilder::new, existingFileHelper);
     }
+
+    @Nonnull
+    @Override
+    public String getName() {
+        return "Block Models: " + modid;
+    }
 }