💡 Get rid of "trailing whitespace" or "no newline at EOF" errors on Travis

[geshuming]

Issue

Travis seems to fail the build and emit Trailing whitespace or No newline at EOF errors, despite our team passing the corresponding gradle tasks checkstyleMain, checkstyleTest

Solution

Apparently this is due to the extra run-checks.sh script being run on travis. I added the following lines to the build.gradle file so that the check task also runs the travis script. Any suggestions are welcome.

task extrachecks(type: Exec) {
    commandLine 'bash', './config/travis/run-checks.sh'
}

tasks.check {
    dependsOn extrachecks
}

This way, you can run the check task on your local repo and fix any issues before submitting to travis.

[tysg]

Just to add on, you will need git add the files that you have fixed before running the above command again. Otherwise, you may see the same error thrown despite having fixed the problem. The reason is that run-checks.sh will call git grep --cached which searches in the staging area.