"conditional binary operator expected" around IS tag

[KengoTODA]

Thanks for providing nice tool & platform, that helps our daily hacking!

Today I want to report one problem found in our project.
In this build, we can see unexpected error around deploy condition:

/home/travis/.travis/job_stages: line 1443: conditional binary operator expected
/home/travis/.travis/job_stages: line 1443: expected `)'
/home/travis/.travis/job_stages: line 1443: expected `)'
/home/travis/.travis/job_stages: line 1443: syntax error near `IS'
/home/travis/.travis/job_stages: line 1443: `  if [[ ($TRAVIS_JDK_VERSION = oraclejdk8) && ((branch = master || branch = "release-3.1" || tag IS present) && type = push) ]]; then'

I've confirmed that condition can be parsed by travis-conditions command like below:

$ travis-conditions parse "(branch = master || branch = "release-3.1" || tag IS present) && type = push"
[:and,
 [:or,
  [:or,
   [:eq, [:var, :branch], [:val, "master"]],
   [:eq, [:var, :branch], [:val, "release-3.1"]]],
  [:is, [:var, :tag], :present]],
 [:eq, [:var, :type], [:val, "push"]]]

I think that generated bash command should not contain IS, because if [[ (tag IS present) ]]; does not work even in my local shell.

[abhinayagarwal]

I have a similar issue where using condition: $TRAVIS_BRANCH IN (master, 9.0.0) results in:

/home/travis/.travis/job_stages: line 642: conditional binary operator expected
/home/travis/.travis/job_stages: line 642: expected `)'
/home/travis/.travis/job_stages: line 642: syntax error near `IN'
/home/travis/.travis/job_stages: line 642: `  if [[ ($TRAVIS_BRANCH = master) && ($TRAVIS_BRANCH IN (master, 9.0.0)) ]]; then'