diff --git a/.gitignore b/.gitignore
@@ -16,7 +16,10 @@
 /vendor/*.filters
 /vendor/*.sln
 
-/generate/idefs.json
+/generate/output
+/generate/**/*.json
+!/generate/input/*.json
+
 /generate/missing-tests.json
 /binding.gyp
 

diff --git a/generate/filters/and.js → generate/combyne/filters/and.js b/generate/filters/and.js → generate/combyne/filters/and.js
diff --git a/generate/filters/args_info.js → generate/combyne/filters/args_info.js b/generate/filters/args_info.js → generate/combyne/filters/args_info.js
diff --git a/generate/filters/cpp_to_v8.js → generate/combyne/filters/cpp_to_v8.js b/generate/filters/cpp_to_v8.js → generate/combyne/filters/cpp_to_v8.js
diff --git a/generate/filters/default_value.js → generate/combyne/filters/default_value.js b/generate/filters/default_value.js → generate/combyne/filters/default_value.js
diff --git a/generate/filters/fields_info.js → generate/combyne/filters/fields_info.js b/generate/filters/fields_info.js → generate/combyne/filters/fields_info.js
diff --git a/generate/filters/has_return_type.js → generate/combyne/filters/has_return_type.js b/generate/filters/has_return_type.js → generate/combyne/filters/has_return_type.js
diff --git a/generate/filters/has_returns.js → generate/combyne/filters/has_returns.js b/generate/filters/has_returns.js → generate/combyne/filters/has_returns.js
diff --git a/generate/filters/is_double_pointer.js → ...rate/combyne/filters/is_double_pointer.js b/generate/filters/is_double_pointer.js → ...rate/combyne/filters/is_double_pointer.js
diff --git a/generate/filters/is_pointer.js → generate/combyne/filters/is_pointer.js b/generate/filters/is_pointer.js → generate/combyne/filters/is_pointer.js
diff --git a/generate/filters/is_v8_value.js → generate/combyne/filters/is_v8_value.js b/generate/filters/is_v8_value.js → generate/combyne/filters/is_v8_value.js
diff --git a/generate/filters/js_args_count.js → generate/combyne/filters/js_args_count.js b/generate/filters/js_args_count.js → generate/combyne/filters/js_args_count.js
diff --git a/generate/filters/or.js → generate/combyne/filters/or.js b/generate/filters/or.js → generate/combyne/filters/or.js
diff --git a/generate/filters/payload_for.js → generate/combyne/filters/payload_for.js b/generate/filters/payload_for.js → generate/combyne/filters/payload_for.js
diff --git a/generate/filters/replace.js → generate/combyne/filters/replace.js b/generate/filters/replace.js → generate/combyne/filters/replace.js
diff --git a/generate/filters/returns_count.js → generate/combyne/filters/returns_count.js b/generate/filters/returns_count.js → generate/combyne/filters/returns_count.js
diff --git a/generate/filters/returns_info.js → generate/combyne/filters/returns_info.js b/generate/filters/returns_info.js → generate/combyne/filters/returns_info.js
diff --git a/generate/filters/title_case.js → generate/combyne/filters/title_case.js b/generate/filters/title_case.js → generate/combyne/filters/title_case.js
diff --git a/generate/filters/un_pointer.js → generate/combyne/filters/un_pointer.js b/generate/filters/un_pointer.js → generate/combyne/filters/un_pointer.js
diff --git a/generate/filters/upper.js → generate/combyne/filters/upper.js b/generate/filters/upper.js → generate/combyne/filters/upper.js
diff --git a/generate/manual/include/functions/copy.h → ...e/combyne/manual/include/functions/copy.h b/generate/manual/include/functions/copy.h → ...e/combyne/manual/include/functions/copy.h
diff --git a/generate/manual/include/macros.h → generate/combyne/manual/include/macros.h b/generate/manual/include/macros.h → generate/combyne/manual/include/macros.h
diff --git a/generate/manual/include/wrapper.h → generate/combyne/manual/include/wrapper.h b/generate/manual/include/wrapper.h → generate/combyne/manual/include/wrapper.h
diff --git a/generate/manual/src/functions/copy.cc → ...rate/combyne/manual/src/functions/copy.cc b/generate/manual/src/functions/copy.cc → ...rate/combyne/manual/src/functions/copy.cc
diff --git a/generate/manual/src/wrapper.cc → generate/combyne/manual/src/wrapper.cc b/generate/manual/src/wrapper.cc → generate/combyne/manual/src/wrapper.cc
diff --git a/generate/partials/async_function.cc → generate/combyne/partials/async_function.cc b/generate/partials/async_function.cc → generate/combyne/partials/async_function.cc
diff --git a/generate/partials/convert_from_v8.cc → generate/combyne/partials/convert_from_v8.cc b/generate/partials/convert_from_v8.cc → generate/combyne/partials/convert_from_v8.cc
diff --git a/generate/partials/convert_to_v8.cc → generate/combyne/partials/convert_to_v8.cc b/generate/partials/convert_to_v8.cc → generate/combyne/partials/convert_to_v8.cc
diff --git a/generate/partials/doc.cc → generate/combyne/partials/doc.cc b/generate/partials/doc.cc → generate/combyne/partials/doc.cc
diff --git a/generate/partials/field_accessors.cc → generate/combyne/partials/field_accessors.cc b/generate/partials/field_accessors.cc → generate/combyne/partials/field_accessors.cc
diff --git a/generate/partials/fields.cc → generate/combyne/partials/fields.cc b/generate/partials/fields.cc → generate/combyne/partials/fields.cc
diff --git a/generate/partials/guard_arguments.cc → generate/combyne/partials/guard_arguments.cc b/generate/partials/guard_arguments.cc → generate/combyne/partials/guard_arguments.cc
diff --git a/generate/partials/sync_function.cc → generate/combyne/partials/sync_function.cc b/generate/partials/sync_function.cc → generate/combyne/partials/sync_function.cc
diff --git a/generate/templates/binding.gyp → generate/combyne/templates/binding.gyp b/generate/templates/binding.gyp → generate/combyne/templates/binding.gyp
diff --git a/generate/templates/class_content.cc → generate/combyne/templates/class_content.cc b/generate/templates/class_content.cc → generate/combyne/templates/class_content.cc
diff --git a/generate/templates/class_header.h → generate/combyne/templates/class_header.h b/generate/templates/class_header.h → generate/combyne/templates/class_header.h
diff --git a/generate/templates/enums.js → generate/combyne/templates/enums.js b/generate/templates/enums.js → generate/combyne/templates/enums.js
diff --git a/generate/templates/nodegit.cc → generate/combyne/templates/nodegit.cc b/generate/templates/nodegit.cc → generate/combyne/templates/nodegit.cc
diff --git a/generate/templates/struct_content.cc → generate/combyne/templates/struct_content.cc b/generate/templates/struct_content.cc → generate/combyne/templates/struct_content.cc
diff --git a/generate/templates/struct_header.h → generate/combyne/templates/struct_header.h b/generate/templates/struct_header.h → generate/combyne/templates/struct_header.h
diff --git a/generate/index.js b/generate/index.js
@@ -1,142 +1,3 @@
-const path = require("path");
-const combyne = require("combyne");
-const file = require("./util/file");
-const idefs = require("./idefs");
-const promisify = require("promisify-node");
-const fse = promisify(require("fs-extra"));
-const js_beautify = require('js-beautify').js_beautify;
-const beautify = function (input) {
-  return js_beautify(input, {
-    "brace_style": "end-expand",
-    "max_preserve_newlines": 2,
-    "preserve_newlines": true,
-    "indent_size": 2,
-    "indent_char": " "
-  });
-}
-
-
-var exec = promisify(function(command, opts, callback) {
-  return require("child_process").exec(command, opts, callback);
-});
-
-// Customize the delimiters so as to not process `{{{` or `}}}`.
-combyne.settings.delimiters = {
-  START_RAW: "{{=",
-  END_RAW: "=}}"
-};
-
-var partials = {
-  asyncFunction: file.read("partials/async_function.cc"),
-  convertFromV8: file.read("partials/convert_from_v8.cc"),
-  convertToV8: file.read("partials/convert_to_v8.cc"),
-  doc: file.read("partials/doc.cc"),
-  fields: file.read("partials/fields.cc"),
-  guardArguments: file.read("partials/guard_arguments.cc"),
-  syncFunction: file.read("partials/sync_function.cc"),
-  fieldAccessors: file.read("partials/field_accessors.cc")
-};
-
-var templates = {
-  class_content: file.read("templates/class_content.cc"),
-  struct_content: file.read("templates/struct_content.cc"),
-  class_header: file.read("templates/class_header.h"),
-  struct_header: file.read("templates/struct_header.h"),
-  binding: file.read("templates/binding.gyp"),
-  nodegit: file.read("templates/nodegit.cc"),
-  enums: file.read("templates/enums.js")
-};
-
-var filters = {
-  upper: require("./filters/upper"),
-  replace: require("./filters/replace"),
-  titleCase: require("./filters/title_case"),
-  or: require("./filters/or"),
-  and: require("./filters/and"),
-  defaultValue: require("./filters/default_value"),
-  argsInfo: require("./filters/args_info"),
-  cppToV8: require("./filters/cpp_to_v8"),
-  jsArgsCount: require("./filters/js_args_count"),
-  isV8Value: require("./filters/is_v8_value"),
-  isPointer: require("./filters/is_pointer"),
-  isDoublePointer: require("./filters/is_double_pointer"),
-  unPointer: require("./filters/un_pointer"),
-  payloadFor: require("./filters/payload_for"),
-  hasReturnType: require("./filters/has_return_type"),
-  hasReturns: require("./filters/has_returns"),
-  returnsCount: require("./filters/returns_count"),
-  returnsInfo: require("./filters/returns_info"),
-  fieldsInfo: require("./filters/fields_info")
-};
-
-// Convert Buffers to Combyne templates.
-Object.keys(templates).forEach(function(template) {
-  templates[template] = combyne(templates[template]);
-
-  // Attach all filters to all templates.
-  Object.keys(filters).forEach(function(filter) {
-    templates[template].registerFilter(filter, filters[filter]);
-  });
-});
-
-// Attach all partials to select templates.
-Object.keys(partials).forEach(function(partial) {
-  templates.class_content.registerPartial(partial, combyne(partials[partial]));
-  templates.struct_content.registerPartial(partial, combyne(partials[partial]));
-});
-
-
-// Determine which definitions to actually include in the source code.
-// This might not be needed anymore but to be frank I'm not totally positive
-var enabled = idefs.filter(function(idef) {
-  return !idef.ignore;
-});
-
-fse.remove(path.resolve(__dirname, "../src")).then(function() {
-  return fse.remove(path.resolve(__dirname, "../include"));
-}).then(function() {
-  return fse.copy(path.resolve(__dirname, "./manual/"), path.resolve(__dirname, "../"));
-}).then(function() {
-  // Write out single purpose templates.
-  file.write("../binding.gyp", beautify(templates.binding.render(enabled)));
-  file.write("../src/nodegit.cc", templates.nodegit.render(enabled));
-
-
-  // Write out all the classes.
-  enabled.forEach(function(idef) {
-    try {
-      if (idef.type == "struct") {
-        file.write("../src/" + idef.filename + ".cc", templates.struct_content.render(idef));
-        file.write("../include/" + idef.filename + ".h", templates.struct_header.render(idef));
-      }
-      else if (idef.type == "class") {
-        file.write("../src/" + idef.filename + ".cc", templates.class_content.render(idef));
-        file.write("../include/" + idef.filename + ".h", templates.class_header.render(idef));
-      }
-    }
-    catch (e) {
-      if (process.env.BUILD_ONLY) {
-        console.log(e);
-      }
-    }
-  });
-
-
-  file.write("../lib/enums.js", beautify(templates.enums.render(enabled)));
-}).then(function() {
-  return exec('command -v astyle').then(function(astyle) {
-    if (astyle) {
-      return exec(
-        'astyle --options=\".astylerc\" '
-        + path.resolve(__dirname, "../src") + "/*.cc "
-        + path.resolve(__dirname, "../include") + "/*.h"
-      ).then(function() {
-        return exec(
-          'rm '
-          + path.resolve(__dirname, "../src") + "/*.cc.orig "
-          + path.resolve(__dirname, "../include") + "/*.h.orig "
-        );
-      });
-    }
-  })
-});
+require("./scripts/generateJson")();
+require("./scripts/generateNativeCode")();
+require("./scripts/generateMissingTests")();
diff --git a/generate/callbacks.json → generate/input/callbacks.json b/generate/callbacks.json → generate/input/callbacks.json
diff --git a/generate/descriptor.json → generate/input/descriptor.json b/generate/descriptor.json → generate/input/descriptor.json
diff --git a/generate/missing-tests-ignore.json → generate/input/ignored-missing-tests.json b/generate/missing-tests-ignore.json → generate/input/ignored-missing-tests.json
diff --git a/generate/libgit2-supplement.json → generate/input/libgit2-supplement.json b/generate/libgit2-supplement.json → generate/input/libgit2-supplement.json
diff --git a/generate/v0.21.2.json → generate/input/v0.21.2.json b/generate/v0.21.2.json → generate/input/v0.21.2.json
diff --git a/generate/missing-tests.js b/generate/missing-tests.js