| # -*- mode: python -*- |
| # resources.py: Find virtme's resources |
| # Copyright © 2014-2019 Andy Lutomirski |
| # Licensed under the GPLv2, which is available in the virtme distribution |
| # as a file called LICENSE with SHA-256 hash: |
| # 8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643 |
| |
| """Helpers to find virtme's guest tools and host scripts.""" |
| |
| import os |
| import shutil |
| import pkg_resources |
| import subprocess |
| |
| def find_guest_tools(): |
| """Return the path of the guest tools installed with the running virtme. |
| """ |
| |
| if pkg_resources.resource_isdir(__name__, 'guest'): |
| return pkg_resources.resource_filename(__name__, 'guest') |
| |
| # No luck. This is somewhat surprising. |
| return None |
| |
| def find_script(name) -> str: |
| # If we're running out of a source checkout, we can find scripts through |
| # the 'virtme/scripts' symlink. |
| fn = pkg_resources.resource_filename(__name__, 'scripts/%s' % name) |
| if os.path.isfile(fn): |
| return fn |
| |
| # Otherwise assume we're actually installed and in PATH. |
| guess = shutil.which(name) |
| if guess is not None: |
| return guess |
| |
| # No luck. This is somewhat surprising. |
| raise Exception('could not find script %s' % name) |
| |
| def run_script(name, **kwargs) -> None: |
| fn = find_script(name) |
| subprocess.check_call(executable=fn, args=[fn], **kwargs) |
