Is it possible to run commandLine in gradle with bash -c?

Question

I have a task in a build.gradle file, in which I'd like to run this command:

(export ENV_VAR=/my/path ; /path/to/build.sh)

I tried running this in gradle:

task myTask {
   doLast {
      exec {
        commandLine ['bash', '-c', '"(export ENV_VAR=/my/path ; /path/to/build.sh)"']
      }
   }
}

Unfortunately, I have an error that says

Successfully started process 'command 'bash''
bash: (export ENV_VAR=/my/path ; /path/to/build.sh): No such file or directory

Now I'm sure the file exists and the specified paths are correct. Running this command manually in the terminal works.

Is there something in gradle that makes a bash -c like this not work? I can't think of another way to make an export like this otherwise.

Answer 1

Try without the extra quotes:

commandLine ['bash', '-c', '(export ENV_VAR=/my/path ; /path/to/build.sh)']

When you run that in the command line, your shell needs the quotes to pass to the command (which happens to be bash) as a single argument, but gradle is already doing that with that syntax, so bash is receiving literally one argument "(export ENV_VAR=/my/path ; /path/to/build.sh)" and since it does not recognize this as internal syntax, tries to run a command with this name.