修补程序pop3>Gremlin Server>Check Graph lib是否已安装

在Gremlin服务器中,我像这样安装NEO4J库

bin/gremlin-server.sh -i org.apache.tinkerpop neo4j-gremlin x.y.z

有没有办法弄清楚这个库是否已经安装了?

长话短说:

我正在模拟存在网络问题的情况,因此在运行此操作之前,我将禁用网络连接。

脚本:

#!/bin/bash
echo "PING PING PING PING PING"
bin/gremlin-server.sh -i org.apache.tinkerpop neo4j-gremlin x.y.z

if [ $? -eq 0 ]
then
  echo "Successfully Successfully Successfully Successfully"
else
  echo "FAILED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
fi

网络关闭时的结果

PING PING PING PING PING
Redirecting to 'install org.apache.tinkerpop neo4j-gremlin 3.3.1' (-i will be removed in a future release)
Installing dependency org.apache.tinkerpop neo4j-gremlin 3.3.1
Could not install the dependency: Error grabbing Grapes -- [unresolved dependency: org.apache.tinkerpop#neo4j-gremlin;3.3.1: not found]
java.lang.RuntimeException: Error grabbing Grapes -- [unresolved dependency: org.apache.tinkerpop#neo4j-gremlin;3.3.1: not found]
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:232)
    at groovy.grape.GrapeIvy.getDependencies(GrapeIvy.groovy:424)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:232)
    at groovy.grape.GrapeIvy.resolve(GrapeIvy.groovy:571)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:232)
    at groovy.grape.GrapeIvy.resolve(GrapeIvy.groovy:534)
    at groovy.grape.Grape.resolve(Grape.java:202)
    at org.codehaus.groovy.vmplugin.v7.IndyInterface.selectMethod(IndyInterface.java:232)
    at org.apache.tinkerpop.gremlin.groovy.util.DependencyGrabber.copyDependenciesToPath(DependencyGrabber.groovy:110)
    at org.apache.tinkerpop.gremlin.server.util.GremlinServerInstall.main(GremlinServerInstall.java:38)
Successfully Successfully Successfully Successfully

为了检查BASH退出代码是否运行良好,我这样做了。

cd wrongfolder
if [ $? -eq 0 ]
then
  echo "Successfully Successfully Successfully Successfully"
else
  echo "FAILED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
fi

输出

PING PING PING PING PING
/install.sh: line 5: cd: wrongfolder: No such file or directory
FAILED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

所以 exit codes 工作很好,但不知怎么的,对克里姆林来说,它不起作用