NAME

AFS::Command ToDo List

Enhancements

Accept AFS::Object objects as arguments

Methods like $fs->listacl() return these handy little AFS::Object::ACL objects. It would be nice if we could manipulate them via OO method calls, and then pass them right back to $fs->setacl(), wouldn't it?

And how about passing the AFS::Object::Path objects returned from $fs->whichcell directly to an $fs->listquota call, so that the final AFS::Object::Path objects have all of the attributes returned by both calls, but in one set of objects?

Look for this in version 1.1

stderr handling

stderr processing needs to be handled in the _exec_cmds() method, and for that matter, _reap_cmds() needs to be folded into _exec_cmds().

The problem is that each API method calls _save_stderr(), and then later calls _restore_stderr(), and we leave stderr redirected for longer than necessary. The contents of the redirected output should be *only* the output from the commands we run, and right now, some of our own carping can creep in there.

Worse, its possible that a failure in the API can leave stderr redirected, resulting in a lot of confusion.

Its possible we should just suck in *ALL* of the output, both stdout/stderr, and drop that data into a couple of arrays. Then, method calls on the command object get gets individual rows of stdout/stderr output. 

  return unless $self->_exec_cmds();


  #
  # Process stdout
  #
  while ( defined($_ = $self->_stdout() ) ) {


  }


  #
  # Process stderr (in some cases, there's interesting data in here.
  # see the fs examine/diskfree and similar api calls)
  #
  while ( defined($_ = $self->_stderr() ) ) {


  }

Maybe something like that. By the time _exec_cmds returns, we have reaped the commands, and collected *ALL* of the output into arrays in the object.

Test Suite: fs lsmount using multiple dirs

We should create several mount points and then query then all with one lsmount method call, to verify we can parse output for multiple dirs. We should pass in some bogus paths, too, to verify the error handling is correct as well (that code feels dubious to me).

Bugs

stdout/stderr buffering will break the fs examine/diskfree commands

Actually, all of the commands that parse per-path output, really. Currently the code assumes the stderr output will appear first, which is a side effect of the buffering. Some attempts to turn of buffering didn't change this, and in any case, we don't want to be sensitive to this (we currently are).

We need to process stderr first, to determine which paths had errors, and then parse stdout. This will require the change descibred above for how we handle stderr.