refactor code structure

.clang-format

@@ -0,0 +1,87 @@
+---
+AccessModifierOffset: -1
+AlignAfterOpenBracket: AlwaysBreak
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlinesLeft: true
+AlignOperands:   false
+AlignTrailingComments: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: true
+BinPackArguments: false
+BinPackParameters: false
+BraceWrapping:
+  AfterClass:      false
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   false
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     false
+  AfterUnion:      false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: false
+ColumnLimit:     80
+CommentPragmas:  '^ IWYU pragma:'
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ForEachMacros:   [ FOR_EACH, FOR_EACH_R, FOR_EACH_RANGE, ]
+IncludeCategories:
+  - Regex:           '^<.*\.h(pp)?>'
+    Priority:        1
+  - Regex:           '^<.*'
+    Priority:        2
+  - Regex:           '.*'
+    Priority:        3
+IndentCaseLabels: true
+IndentWidth:     2
+IndentWrappedFunctionNames: false
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: false
+PenaltyBreakBeforeFirstCallParameter: 1
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 200
+PointerAlignment: Left
+ReflowComments:  true
+SortIncludes:    true
+SpaceAfterCStyleCast: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+TabWidth:        8
+UseTab:          Never
+...

.gitignore

@@ -30,3 +30,5 @@
 *.exe
 *.out
 *.app
+
+src/proto/substrait

.gitmodules

@@ -0,0 +1,12 @@
+[submodule "third_party/yaml-cpp"]
+	path = third_party/yaml-cpp
+	url = https://github.com/jbeder/yaml-cpp.git
+[submodule "third_party/googletest"]
+	path = third_party/googletest
+	url = https://github.com/google/googletest.git
+[submodule "third_party/substrait"]
+	path = third_party/substrait
+	url = https://github.com/substrait-io/substrait.git
+[submodule "third_party/fmt"]
+	path = third_party/fmt
+	url = https://github.com/fmtlib/fmt

CMakeLists.txt

@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.10)
+
+# set the project name
+project(substrait-cpp)
+
+message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+option(
+        BUILD_TESTING
+        "Enable substrait-cpp tests. This will enable all other build options automatically."
+        ON)
+
+find_package(Protobuf REQUIRED)
+include_directories(${PROTOBUF_INCLUDE_DIRS})
+
+add_subdirectory(third_party)
+include_directories(include)
+add_subdirectory(substrait)

Makefile

@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: Apache-2.0
+
+.PHONY: all clean build debug release
+
+BUILD_TYPE := Release
+
+all: debug
+
+clean:
+	@rm -rf build-*
+
+build-common:
+	@mkdir -p build-${BUILD_TYPE}
+	@cd build-${BUILD_TYPE} && \
+	cmake -Wno-dev \
+		  -DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
+		  -DPREFER_STATIC_LIBS=OFF \
+		  $(FORCE_COLOR) \
+		  ..
+
+build:
+	VERBOSE=1 cmake --build build-${BUILD_TYPE} -j $${CPU_COUNT:-`nproc`} || \
+	cmake --build build-${BUILD_TYPE}
+
+debug:
+	@$(MAKE) build-common BUILD_TYPE=Debug
+	@$(MAKE) build BUILD_TYPE=Debug
+
+release:
+	@$(MAKE) build-common BUILD_TYPE=Release
+	@$(MAKE) build BUILD_TYPE=Release

README.md

@@ -1,3 +1,30 @@
 # substrait-cpp
 
 Planned home for CPP libraries to help build/consume Substrait query plans.
+
+## Getting Started
+
+We provide scripts to help developers setup and install substrait-cpp dependencies.
+
+### Get the substrait-cpp Source
+```
+git clone --recursive https://github.com/substrait-io/substrait-cpp.git
+cd substrait-cpp
+# if you are updating an existing checkout
+git submodule sync --recursive
+git submodule update --init --recursive
+```
+
+### Setting up on Linux (Ubuntu 20.04 or later)
+
+Once you have checked out substrait-cpp, you can setup and build like so:
+
+```shell
+$ ./scripts/setup-ubuntu.sh 
+$ make
+```
+
+## License
+
+substrait-cpp is licensed under the Apache 2.0 License. A copy of the license
+[can be found here.](https://www.apache.org/licenses/LICENSE-2.0.html)