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add executable option to bzr module, refactor in doing so

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This commit is contained in:
Skylar Saveland 2013-09-26 14:26:46 -07:00
parent 198c4702bd
commit 3f74c2d986
1 changed files with 87 additions and 63 deletions
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150
source_control/bzr
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@ -50,6 +50,13 @@ options:
description:
- If C(yes), any modified files in the working
tree will be discarded.
executable:
required: false
default: null
version_added: "1.4"
description:
- Path to bzr executable to use. If not supplied,
the normal mechanism for resolving binary paths will be used.
'''
EXAMPLES = '''
@ -58,67 +65,79 @@ EXAMPLES = '''
'''
import re
import tempfile
def get_version(dest):
''' samples the version of the bzr branch'''
os.chdir(dest)
cmd = "bzr revno"
revno = os.popen(cmd).read().strip()
return revno
def clone(module, parent, dest, version):
''' makes a new bzr branch if it does not already exist '''
dest_dirname = os.path.dirname(dest)
try:
os.makedirs(dest_dirname)
except:
pass
os.chdir(dest_dirname)
if version.lower() != 'head':
cmd = "bzr branch -r %s %s %s" % (version, parent, dest)
else:
cmd = "bzr branch %s %s" % (parent, dest)
return module.run_command(cmd, check_rc=True)
class Bzr(object):
def __init__(self, module, parent, dest, version, bzr_path):
self.module = module
self.parent = parent
self.dest = dest
self.version = version
self.bzr_path = bzr_path
def has_local_mods(dest):
os.chdir(dest)
cmd = "bzr status -S"
lines = os.popen(cmd).read().splitlines()
lines = filter(lambda c: not re.search('^\\?\\?.*$', c), lines)
return len(lines) > 0
def _command(self, args_list, **kwargs):
(rc, out, err) = self.module.run_command(
[self.bzr_path] + args_list, **kwargs)
return (rc, out, err)
def reset(module,dest,force):
'''
Resets the index and working tree to head.
Discards any changes to tracked files in the working
tree since that commit.
'''
os.chdir(dest)
if not force and has_local_mods(dest):
module.fail_json(msg="Local modifications exist in branch (force=no).")
return module.run_command("bzr revert", check_rc=True)
def get_version(self):
'''samples the version of the bzr branch'''
os.chdir(self.dest)
cmd = "%s revno" % self.bzr_path
revno = os.popen(cmd).read().strip()
return revno
def fetch(module, dest, version):
''' updates branch from remote sources '''
os.chdir(dest)
if version.lower() != 'head':
(rc, out, err) = module.run_command("bzr pull -r %s" % version)
else:
(rc, out, err) = module.run_command("bzr pull")
if rc != 0:
module.fail_json(msg="Failed to pull")
return (rc, out, err)
def clone(self):
'''makes a new bzr branch if it does not already exist'''
dest_dirname = os.path.dirname(self.dest)
try:
os.makedirs(dest_dirname)
except:
pass
os.chdir(dest_dirname)
if self.version.lower() != 'head':
args_list = ["branch", "-r", self.version, self.parent, self.dest]
else:
args_list = ["branch", self.parent, self.dest]
return self._command(args_list, check_rc=True)
def switch_version(module, dest, version):
''' once pulled, switch to a particular revno or revid'''
os.chdir(dest)
cmd = ''
if version.lower() != 'head':
cmd = "bzr revert -r %s" % version
else:
cmd = "bzr revert"
return module.run_command(cmd, check_rc=True)
def has_local_mods(self):
os.chdir(self.dest)
cmd = "%s status -S" % self.bzr_path
lines = os.popen(cmd).read().splitlines()
lines = filter(lambda c: not re.search('^\\?\\?.*$', c), lines)
return len(lines) > 0
def reset(self, force):
'''
Resets the index and working tree to head.
Discards any changes to tracked files in the working
tree since that commit.
'''
os.chdir(self.dest)
if not force and self.has_local_mods():
self.module.fail_json(msg="Local modifications exist in branch (force=no).")
return self._command(["revert"], check_rc=True)
def fetch(self):
'''updates branch from remote sources'''
os.chdir(self.dest)
if self.version.lower() != 'head':
(rc, out, err) = self._command(["pull", "-r", self.version])
else:
(rc, out, err) = self._command(["pull"])
if rc != 0:
self.module.fail_json(msg="Failed to pull")
return (rc, out, err)
def switch_version(self):
'''once pulled, switch to a particular revno or revid'''
os.chdir(self.dest)
if self.version.lower() != 'head':
args_list = ["revert", "-r", self.version]
else:
args_list = ["revert"]
return self._command(args_list, check_rc=True)
# ===========================================
@ -128,7 +147,8 @@ def main():
dest=dict(required=True),
name=dict(required=True, aliases=['parent']),
version=dict(default='head'),
force=dict(default='yes', type='bool')
force=dict(default='yes', type='bool'),
executable=dict(default=None),
)
)
@ -136,34 +156,38 @@ def main():
parent = module.params['name']
version = module.params['version']
force = module.params['force']
bzr_path = module.params['executable'] or module.get_bin_path('bzr', True)
bzrconfig = os.path.join(dest, '.bzr', 'branch', 'branch.conf')
rc, out, err, status = (0, None, None, None)
bzr = Bzr(module, parent, dest, version, bzr_path)
# if there is no bzr configuration, do a branch operation
# else pull and switch the version
before = None
local_mods = False
if not os.path.exists(bzrconfig):
(rc, out, err) = clone(module, parent, dest, version)
(rc, out, err) = bzr.clone()
else:
# else do a pull
local_mods = has_local_mods(dest)
before = get_version(dest)
(rc, out, err) = reset(module, dest, force)
local_mods = bzr.has_local_mods()
before = bzr.get_version()
(rc, out, err) = bzr.reset(force)
if rc != 0:
module.fail_json(msg=err)
(rc, out, err) = fetch(module, dest, version)
(rc, out, err) = bzr.fetch()
if rc != 0:
module.fail_json(msg=err)
# switch to version specified regardless of whether
# we cloned or pulled
(rc, out, err) = switch_version(module, dest, version)
(rc, out, err) = bzr.switch_version()
# determine if we changed anything
after = get_version(dest)
after = bzr.get_version()
changed = False
if before != after or local_mods: