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Add --only-if-changed option. #3386

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merged 1 commit into from
Jun 30, 2013
Merged

Add --only-if-changed option. #3386

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19 changes: 14 additions & 5 deletions bin/ansible-pull
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Original file line number Diff line number Diff line change
Expand Up @@ -45,8 +45,9 @@ import socket
from optparse import OptionParser

DEFAULT_PLAYBOOK = 'local.yml'
PLAYBOOK_ERRORS = { 1: 'File does not exist',
2: 'File is not readable' }
PLAYBOOK_ERRORS = {1: 'File does not exist',
2: 'File is not readable'}


def _run(cmd):
print >>sys.stderr, "Running: '%s'" % cmd
Expand All @@ -56,7 +57,8 @@ def _run(cmd):
print out
if cmd.returncode != 0:
print >>sys.stderr, err
return cmd.returncode
return cmd.returncode, out


def try_playbook(path):
if not os.path.exists(path):
Expand All @@ -65,6 +67,7 @@ def try_playbook(path):
return 2
return 0


def select_playbook(path, args):
playbook = None
if len(args) > 0 and args[0] is not None:
Expand All @@ -89,12 +92,15 @@ def select_playbook(path, args):
print >>sys.stderr, "\n".join(errors)
return playbook


def main(args):
""" Set up and run a local playbook """
usage = "%prog [options] [playbook.yml]"
parser = OptionParser(usage=usage)
parser.add_option('--purge', default=False, action='store_true',
help='Purge git checkout after playbook run')
parser.add_option('-o', '--only-if-changed', dest='ifchanged', default=False, action='store_true',
help='Only run the playbook if the repository has been updated')
parser.add_option('-d', '--directory', dest='dest', default=None,
help='Directory to clone git repository to')
parser.add_option('-U', '--url', dest='url', default=None,
Expand Down Expand Up @@ -123,9 +129,12 @@ def main(args):
cmd = 'ansible all -c local -i "%s" --limit "%s" -m git -a "%s"' % (
inv_opts, limit_opts, git_opts
)
rc = _run(cmd)
rc, out = _run(cmd)
if rc != 0:
return rc
elif options.ifchanged and '"changed": true' not in out:
print "Repository has not changed, quitting."
return 0

playbook = select_playbook(options.dest, args)

Expand All @@ -137,7 +146,7 @@ def main(args):
if options.inventory:
cmd += ' -i "%s"' % options.inventory
os.chdir(options.dest)
rc = _run(cmd)
rc, out = _run(cmd)

if options.purge:
os.chdir('/')
Expand Down