IdStory Identity Manager

When building with IdMtool, it is not easy to determine if the build failed - the tool always returns 0 return code upon exit regardless the action being successful or not. This is clunky when used inside an automated workflow.

• 0 = everything successful
• non-zero (1-255 range) = failure
• AFAIK when printing the help, the return codes vary per binary... but I think the suitable is:
  • when specifically asking for --help or similar, return code should be 0
  • when printing the help as a result of bad params/other failure, return code should be non-zero

As far as non-zero codes go, it is totally up to you... I would use 1,2,... low integers.

Example:

[root@czechidm tool]# java -jar idm-tool.jar -p --build
2020-02-10 12:52:28.827  INFO   --- [           main] eu.bcvsolutions.idm.tool.ConsoleRunner   : Running tool with arguments [project, build].
2020-02-10 12:52:29.353 ERROR   --- [           main] e.b.idm.tool.service.impl.MavenManager   : /idmbuild/maven/current/bin/mvn: line 93: which: command not found
2020-02-10 12:52:29.353 ERROR   --- [           main] e.b.idm.tool.service.impl.MavenManager   : The JAVA_HOME environment variable is not defined correctly
2020-02-10 12:52:29.353 ERROR   --- [           main] e.b.idm.tool.service.impl.MavenManager   : This environment variable is needed to run this program
2020-02-10 12:52:29.353 ERROR   --- [           main] e.b.idm.tool.service.impl.MavenManager   : NB: JAVA_HOME should point to a JDK not a JRE
2020-02-10 12:52:29.359 ERROR   --- [           main] e.b.idm.tool.service.impl.MavenManager   : Execute maven command failed [exit code: 1].
2020-02-10 12:52:29.428 ERROR   --- [           main] eu.bcvsolutions.idm.tool.ConsoleRunner   : Build failed [Execute maven command failed [exit code: 1].]
[root@czechidm tool]# echo $?
0