[jira] [Created] (MNG-5852) "mvn" script invokes /bin/sh but requires /bin/bash functions

["Jeffrey Alexander (JIRA)" <ji...@apache.org>]

Jeffrey Alexander created MNG-5852:
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             Summary: "mvn" script invokes /bin/sh but requires /bin/bash functions
                 Key: MNG-5852
                 URL: https://issues.apache.org/jira/browse/MNG-5852
             Project: Maven
          Issue Type: Bug
          Components: Command Line
    Affects Versions: 3.3.3
         Environment: Solaris 11
            Reporter: Jeffrey Alexander


The bin/mvn script uses the "local" command which is a shell builtin of bash and similar shells, but is not required for POSIX-compliance in sh.  When I attempt to run mvn on my Solaris system, I see the following output:

$ ./mvn
./mvn[200]: local: not found [No such file or directory]
./mvn[201]: local: not found [No such file or directory]
...

Lines 200 and 201 invoke "local" to make local variables to the function.  According to "man bash", this is a shell builtin.  However, bin/mvn is invoked as:

#!/bin/sh

On most flavors of linux, this resolves to bash or dash which probably runs in a restricted environment after checking to see that its $0 is sh. But on Solaris's /bin/sh is actually ksh93 for backwards compatibility.

Since "local" is not part of a POSIX-compliant /bin/sh, depending on it in a script that is invoked with /bin/sh is a bug.





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