imalison python utilities

This commit is contained in:
Ivan Malison 2015-11-20 22:54:36 -08:00
parent d8baf019d0
commit c9f046f38e

View File

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import os
import errno
from invoke import run
def link_filenames(ctx, link_pairs, force=False):
for source, destination in link_pairs:
destination = os.path.expanduser(destination)
source = os.path.expanduser(source)
if force:
ctx.run("sudo rm -rf {0}".format(destination))
if os.path.exists(destination):
print("Skipping {0} because path already exists".format(destination))
else:
print("Linking {0} to {1}".format(destination, source))
ctx.run('ln -s {0} {1}'.format(source, destination))
def ensure_path_exists(path):
try:
os.makedirs(path)
except OSError as exception:
if exception.errno != errno.EEXIST:
raise
def command_exists(command, run=run):
return run("hash {0}".format(command), warn=True, hide=True).exited == 0