At 03:39 PM 11/20/2010 -0800, K. Richard Pixley wrote:
Context #1: an alternate packaging mechanism. I want to use that
packaging mechanism because it's the most appropriate way to package
and distribute my module for this application. The packaging
mechanism involves calling "install", (typically "make install
prefix=/tmp/jail", but there's no reason it couldn't be "python
setup.py install"), in a sort of jail. Anything installed during
that encapsulation is recorded and those pieces are the ones which
are picked up and packaged by the automatic packaging system.
Use --root, then. That's what it's for.
Context #2: cross development. I'm running on one system producing
a root file system which will be used later to boot a new
system. This is another application of "make install PREFIX=/tmp/newroot"
Likewise, this is what --root is for.
In both of the above cases, you want the prefix of anything you build
to be set up for the prefix where it's really going to *end up*
installed, not to the temporary directory where you're
mock-installing it to. That's why all distutils' internal commands
use --root when they call an install operation for packaging.
What I want to do is to manage and build my tool in python,
including nose tests outside of bitbake, as a component within
openembedded. This means that bitbake will build the component and
install the component into a staging area which is unique to this
particular build directory. It can then import the tool from the
local staging area and use it.
What I want to do is the moral equivalent of "make install
prefix=foo" or "make install DESTDIR=foo". It's a common task with
numerous applications. This shouldn't be difficult and I really
can't believe that I'm the first person using python to want to do
this. It's a 10 character command line option. There should be
something comparably simple in distutils/setuptools/whatever, no?
Yes. It's --root. ;-)
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