[Subtask] Add launching process and scripts

[xunliu]

Describe the subtask

Through graviton.sh script launching GravtionServer.

Command

./bin/graviton.sh [--config <conf-dir>] {start|stop|restart|status}

Directory struct

├── bin
│   ├── command.sh
│   └── graviton.sh
├── conf
│   ├── graviton.conf.template
│   ├── graviton-env.sh.template
│   └── log4j.properties.template
└── distribution/package
    ├── bin/
    ├── catalogs/catalog-hive
    ├── conf/
    ├── lib/
    ├── graviton-${version}-bin.tar
    └── graviton-${version}-bin.tar.sha256

Scripts context

• bin/command.sh: Command functions
• bin/graviton.sh: Launching scripts
• conf/graviton.conf.template: All configuration templates for Gravtion
• conf/gravtion-env.sh.template: Environment variables, etc., JAVA_HOME, GRAVITON_HOME etc.,
• conf/log4j.properties.template: log4j configuration for Gravtion Server.

Assemble Distribution

1. ./gradlew clean build

2. ./gradlew compileDistribution

   • Copy ${project_root_dir}/bin/ directory to ${project_root_dir}/distribution/package/bin/.
   • Copy ${project_root_dir}/conf/ directory to ${project_root_dir}/distribution/package/conf/ and remove .template file name suffix.
   • Copy ${project_root_dir}/${sub_module}/lib to ${project_root_dir}/distribution/package/lib/
   • Copy ${project_root_dir}/catalog-hive}/lib to ${project_root_dir}/distribution/package/catalogs/catalog-hive/lib

3. ./gradlew assembleDistribution

   • Compress ${project_root_dir}/distribution/package generate graviton-${version}-bin.tar and graviton-${version}-bin.tar.sha256

4. ./distribution/package/bin/graviton.sh start|stop|status

Parent issue

#76