Debugs Flaky License dependency Reports generation

[tejaswini-imply]

Debugs #12676.

Description

License dependency reports generation is flaky and failing sometimes with no way to debug. Hence, surfacing the mvn output for the same.

Before

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Generating dependency reports
Generating report for /home/travis/build/apache/druid
Generating report for /home/travis/build/apache/druid/extensions-core/s3-extensions
Encountered error [Command 'mvn -Ddependency.locations.enabled=false -Ddependency.details.enabled=false project-info-reports:dependencies' returned non-zero exit status 1] when generating report for /home/travis/build/apache/druid/extensions-core/s3-extensions
Generating report for /home/travis/build/apache/druid/extensions-core/testing-tools
Encountered error [Command 'mvn -Ddependency.locations.enabled=false -Ddependency.details.enabled=false project-info-reports:dependencies' returned non-zero exit status 1] when generating report for /home/travis/build/apache/druid/extensions-core/testing-tools
Generating report for /home/travis/build/apache/druid/extensions-core/kinesis-indexing-service
Encountered error [Command 'mvn -Ddependency.locations.enabled=false -Ddependency.details.enabled=false project-info-reports:dependencies' returned non-zero exit status 1] when generating report for /home/travis/build/apache/druid/extensions-core/kinesis-indexing-service
Generating report for /home/travis/build/apache/druid/extensions-core/mysql-metadata-storage
Encountered error [Command 'mvn -Ddependency.locations.enabled=false -Ddependency.details.enabled=false project-info-reports:dependencies' returned non-zero exit status 1] when generating report for /home/travis/build/apache/druid/extensions-core/mysql-metadata-storage
Generating report for /home/travis/build/apache/druid/extensions-core/simple-client-sslcontext
Encountered error [Command 'mvn -Ddependency.locations.enabled=false -Ddependency.details.enabled=false project-info-reports:dependencies' returned non-zero exit status 1] when generating report for /home/travis/build/apache/druid/extensions-core/simple-client-sslcontext
...

After

...
Generating dependency reports
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/mysql-metadata-storage
Generated report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/mysql-metadata-storage in /Users/tejaswinibandlamudi/IdeaProjects/druid/target/license-reports/ext/mysql-metadata-storage
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/ec2-extensions
Generated report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/ec2-extensions in /Users/tejaswinibandlamudi/IdeaProjects/druid/target/license-reports/ext/ec2-extensions
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/kinesis-indexing-service
Generated report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/kinesis-indexing-service in /Users/tejaswinibandlamudi/IdeaProjects/druid/target/license-reports/ext/kinesis-indexing-service
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/druid-basic-security
Generated report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/druid-basic-security in /Users/tejaswinibandlamudi/IdeaProjects/druid/target/license-reports/ext/druid-basic-security
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/lookups-cached-single
Generated report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/lookups-cached-single in /Users/tejaswinibandlamudi/IdeaProjects/druid/target/license-reports/ext/lookups-cached-single
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/druid-ranger-security
Generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/kafka-eight
Encountered error [Command 'mvn -Ddependency.locations.enabled=false -Ddependency.details.enabled=false project-info-reports:dependencies' returned non-zero exit status 1.] with the following output when generating report for /Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/kafka-eight
[INFO] Scanning for projects...
[INFO] 
[INFO] ------------------< org.apache.maven:standalone-pom >-------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.128 s
[INFO] Finished at: 2022-07-06T10:18:16+05:30
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-project-info-reports-plugin:3.3.0:dependencies (default-cli): Goal requires a project to execute but there is no POM in this directory (/Users/tejaswinibandlamudi/IdeaProjects/druid/extensions-core/kafka-eight). Please verify you invoked Maven from the correct directory. -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MissingProjectException
...

(Please scroll to the right to see output)

Key changed files in this PR

• generate-license-dependency-reports.py

[abhishekagarwal87]

Thank you @tejaswini-imply