xuperunion initial commit

Author: Wang Yucao

.travis.yml

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+language: go
+go_import_path: github.com/xuperchain/xuperunion
+sudo: false
+
+go:
+  - 1.12.x
+
+matrix:
+  include:
+    - os: linux
+      dist: xenial
+    - os: osx
+      osx_image: xcode10.1
+
+script: make && make test
+
+cache:
+  directories:
+    - .cache

CONTRIBUTING.md

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+# Contributing to XuperUnion
+
+
+Thank you for considering contributing to XuperUnion!
+
+## Reporting issues
+XuperUnion using github issue to track `bugs` and `feature requests`. Before you opening an issue, please search firstly to make sure there isn't any duplicate or similar issues in issue tracker.
+
+For opening an issue, please describe your situation using our issue template with logs or other clues.
+
+* Your Environment. XuperUnion and OS/Go/gcc version etc.
+* Brief of the issue.
+* Describe what you expected to happen.
+* Describe what actually happened. Include the full traceback if there was an exception.
+* If possible, include a minimal, complete, and verifiable example to help us identify the issue. This also helps check that the issue is not with your own code.
+
+## Submit your code
+XuperUnion accept code using standard github PR(Pull Request) workflow. Please fork, fix, commit and send a PR for the maintainers to review and merge into the main code base.
+
+Please submit pull request using the following template:
+
+* What is the purpose of the change
+* Brief of your solution
+
+Please also include a github issue link of the PR. The PR must pass the CI verification and will be reviewed by the maintainers.
+
+**Note:** Code must adhere to the official Go formatting guidelines(i.e. uses gofmt and golint)
+
+## Sign the Contributor License Agreement
+We appreciate community contributions to code repositories open sourced by XuperChain. By signing a contributor license agreement, we ensure that the community is free to use your contributions.
+
+You can review the [XuperChain Contributor License Agreement](https://cla-assistant.io/xuperchain/xuperunion) and sign the CLA before submitting your PR.
+
+Active contributors might be asked to join the core contributor team, and given the ability to merge pull requests.

LICENSE

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+                            Copyright 2019 Baidu, Inc.
+ 
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Makefile

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+ifeq ($(OS),Windows_NT)
+  PLATFORM="Windows"
+else
+  ifeq ($(shell uname),Darwin)
+    PLATFORM="MacOS"
+  else
+    PLATFORM="Linux"
+  endif
+endif
+
+all: build 
+export GO111MODULES=on
+export GOFLAGS=-mod=vendor
+XCHAIN_ROOT := ${PWD}
+export XCHAIN_ROOT
+PATH := ${PWD}/xvm/compile/wabt/build:$(PATH)
+
+build:
+	PLATFORM=$(PLATFORM) ./build.sh
+
+test:
+	go test `go list ./... | egrep -v 'test'`
+	# test wasm sdk
+	GOOS=js GOARCH=wasm go build github.com/xuperchain/xuperunion/contractsdk/go/driver
+
+clean:
+	rm -rf output
+	rm -f xchain-cli
+	rm -f xchain
+	rm -f dump_chain
+
+.PHONY: all test clean

README.md

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+# XuperUnion
+
+
+## What is XuperUnion
+
+**XuperUnion**, the first open source project of **XuperChain**, introduces a highly flexible blockchain architecture with great transaction performance.
+ 
+XuperUnion is the underlying solution for union networks with following highlight features:
+
+* **High Performance**
+
+    * Creative XuperModel technology makes contract execution and verification run parallelly.
+    * TDPoS ensures quick consensus in a large scale network.
+    * WASM VM using AOT technology.
+
+* **Solid Security**
+
+    * Contract account protected by multiple private keys ensures assets safety.
+    * Flexible authorization system supports weight threshold, AK sets and could be easily extended.
+
+* **High Scalability**
+
+    * Robust P2P network supports a large scale network with thousands of nodes.
+    * Branch management on ledger makes automatic convergence consistency and supports global deployment.
+
+* **Multi-Language Support**: Support pluggable multi-language contract VM using XuperBridge technology.
+
+* **Flexibility**:  Modular and pluggable design provides high flexibility for users to build their blockchain solutions for various business scenarios.
+
+## Quick start
+
+### Requirements
+
+* OS Support: Linux and Mac OS
+* Go 1.12.x or later
+* G++ 4.8.x or later
+* Git
+
+### Build
+
+Clone the repository
+
+```
+git clone https://github.com/xuperchain/xuperunion
+```
+
+Enter the xuperunion folder and build the code:
+
+```
+make
+```
+
+Note that if you are using Go 1.11 or later, go modules are used to download 3rd-party dependencies by default. You can also disable go modules and use the prepared dependencies under vendor folder.
+
+Run test:
+```
+make test
+```
+
+### Run 
+
+There is an output folder if build successfully. Enter the output folder, create a default chain firstly:
+
+```
+./xchain-cli createChain
+```
+
+By doing this, a blockchain named "xuper" is created, you can find the data of this blockchain at `./data/blockchain/xuper/`.
+
+Then start the node and run XuperUnion full node servers:
+
+```
+./xchain
+```
+
+By default, the `xuper` chain will produce a block every 3 seconds, try the following command to see the `trunkHeight` of chain and make sure it's growing.
+
+```
+./xchain-cli status
+```
+
+
+### Documentation
+
+Please refer to our [wiki](https://github.com/xuperchain/xuperunion/wiki) for more  information, including how to build multi-node network, transfer to others, deploy and invoke smart contract.
+
+## How to Contribute
+
+We encourage you to contribute to XuperUnion.
+
+Please review the [Contribution guidelines](https://github.com/xuperchain/xuperunion/blob/master/CONTRIBUTING.md)  for information on how to get started contributing to the project.
+
+## License
+
+XuperUnion is under the [Apache License, Version 2.0](https://github.com/xuperchain/xuperunion/blob/master/LICENSE).
+