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Initial refactor of the file module

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* Separate the logic for each state into separate functions
* Start the process of separating out initialization (pre-processing of
  parameters that cannot be done via arg spec) from the logic to
  implement each state.
* Start the process of raising exceptions for errors and returning
  result values from each state implementing function   Goal is for all
  fail_json's to be consolidated into exception handlers at the toplevel
  and for there to be only one exit_json() at the toplevel.
This commit is contained in:
Toshio Kuratomi 2018-05-07 14:35:07 -07:00
parent 6b6c4914d2
commit 4e2876be9f
1 changed files with 424 additions and 268 deletions
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692
lib/ansible/modules/files/file.py
View file

@ -126,6 +126,7 @@ EXAMPLES = '''
import errno
import os
import shutil
import sys
import time
from ansible.module_utils.basic import AnsibleModule
@ -136,6 +137,50 @@ from ansible.module_utils._text import to_bytes, to_native
module = None
class AnsibleModuleError(Exception):
def __init__(self, results):
self.results = results
def __repr__(self):
print('AnsibleModuleError({0})'.format(self.results))
class ParameterError(AnsibleModuleError):
pass
def _ansible_excepthook(exc_type, exc_value, tb):
# Using an exception allows us to catch it if the calling code knows it can recover
if issubclass(exc_type, AnsibleModuleError):
module.fail_json(**exc_value.results)
else:
sys.__excepthook__(exc_type, exc_value, tb)
def additional_parameter_handling(params):
"""Additional parameter validation and reformatting"""
params['b_path'] = to_bytes(params['path'], errors='surrogate_or_strict')
params['b_src'] = to_bytes(params['src'], errors='surrogate_or_strict', nonstring='passthru')
# state should default to file, but since that creates many conflicts,
# default state to 'current' when it exists.
prev_state = get_state(params['b_path'])
if params['state'] is None:
if prev_state != 'absent':
params['state'] = prev_state
elif params['recurse']:
params['state'] = 'directory'
else:
params['state'] = 'file'
# make sure the target path is a directory when we're doing a recursive operation
if params['recurse'] and params['state'] != 'directory':
raise ParameterError(results={"path": params["path"],
"msg": "recurse option requires state to be 'directory'"})
def get_state(b_path):
''' Find out current state '''
@ -153,7 +198,8 @@ def get_state(b_path):
return 'absent'
def recursive_set_attributes(module, b_path, follow, file_args):
# This should be moved into the common file utilities
def recursive_set_attributes(b_path, follow, file_args):
changed = False
for b_root, b_dirs, b_files in os.walk(b_path):
for b_fsobj in b_dirs + b_files:
@ -174,7 +220,7 @@ def recursive_set_attributes(module, b_path, follow, file_args):
if os.path.exists(b_fsname):
if os.path.isdir(b_fsname):
# Link is a directory so change perms on the directory's contents
changed |= recursive_set_attributes(module, b_fsname, follow, file_args)
changed |= recursive_set_attributes(b_fsname, follow, file_args)
# Change perms on the file pointed to by the link
tmp_file_args = file_args.copy()
@ -183,6 +229,359 @@ def recursive_set_attributes(module, b_path, follow, file_args):
return changed
def initial_diff(path, state, prev_state):
diff = {'before': {'path': path},
'after': {'path': path},
}
if prev_state != state:
diff['before']['state'] = prev_state
diff['after']['state'] = state
return diff
#
# States
#
def execute_diff_peek(b_path):
"""Take a guess as to whether a file is a binary file"""
appears_binary = False
try:
with open(b_path, 'rb') as f:
head = f.read(8192)
except Exception:
# If we can't read the file, we're okay assuming it's text
pass
else:
if b"\x00" in head:
appears_binary = True
return appears_binary
def ensure_absent(path, b_path, prev_state):
result = {}
if prev_state != 'absent':
if not module.check_mode:
if prev_state == 'directory':
try:
shutil.rmtree(b_path, ignore_errors=False)
except Exception as e:
module.fail_json(msg="rmtree failed: %s" % to_native(e))
else:
try:
os.unlink(b_path)
except OSError as e:
if e.errno != errno.ENOENT: # It may already have been removed
module.fail_json(path=path, msg="unlinking failed: %s " % to_native(e))
diff = initial_diff(path, 'absent', prev_state)
result.update({'path': path, 'changed': True, 'diff': diff})
else:
result.update({'path': path, 'changed': False})
return result
def execute_touch(path, b_path, prev_state, follow):
if not module.check_mode:
if prev_state == 'absent':
# Create an empty file if the filename did not already exist
try:
open(b_path, 'wb').close()
except (OSError, IOError) as e:
raise AnsibleModuleError(results={'path': path,
'msg': 'Error, could not touch target: %s' % to_native(e, nonstring='simplerepr')})
elif prev_state in ('file', 'directory', 'hard'):
# Update the timestamp if the file already existed
try:
os.utime(b_path, None)
except OSError as e:
raise AnsibleModuleError(results={'path': path, 'msg': 'Error while touching existing target: %s' % to_native(e, nonstring='simplerepr')})
elif prev_state == 'link' and follow:
b_link_target = os.readlink(b_path)
try:
os.utime(b_link_target, None)
except OSError as e:
raise AnsibleModuleError(results={'path': path, 'msg': 'Error while touching existing target: %s' % to_native(e, nonstring='simplerepr')})
else:
raise AnsibleModuleError(results={'msg': 'Can only touch files, directories, and hardlinks (%s is %s)' % (path, prev_state)})
# Update the attributes on the file
diff = initial_diff(path, 'absent', prev_state)
file_args = module.load_file_common_arguments(module.params)
try:
module.set_fs_attributes_if_different(file_args, True, diff, expand=False)
except SystemExit as e:
if e.code:
# We take this to mean that fail_json() was called from
# somewhere in basic.py
if prev_state == 'absent':
# If we just created the file we can safely remove it
os.remove(b_path)
raise
# Unfortunately, touch always changes the file because it updates file's timestamp
return {'dest': path, 'changed': True}
def ensure_file_attributes(path, b_path, prev_state, follow):
file_args = module.load_file_common_arguments(module.params)
if prev_state != 'file':
if follow and prev_state == 'link':
# follow symlink and operate on original
b_path = os.path.realpath(b_path)
path = to_native(b_path, errors='strict')
prev_state = get_state(b_path)
file_args['path'] = path
if prev_state not in ('file', 'hard'):
# file is not absent and any other state is a conflict
module.fail_json(path=path, msg='file (%s) is %s, cannot continue' % (path, prev_state))
diff = initial_diff(path, 'file', prev_state)
changed = module.set_fs_attributes_if_different(file_args, False, diff, expand=False)
return {'path': path, 'changed': changed, 'diff': diff}
def ensure_directory(path, b_path, prev_state, follow, recurse):
if follow and prev_state == 'link':
b_path = os.path.realpath(b_path)
path = to_native(b_path, errors='strict')
prev_state = get_state(b_path)
changed = False
file_args = module.load_file_common_arguments(module.params)
diff = initial_diff(path, 'directory', prev_state)
if prev_state == 'absent':
if module.check_mode:
module.exit_json(changed=True, diff=diff)
curpath = ''
try:
# Split the path so we can apply filesystem attributes recursively
# from the root (/) directory for absolute paths or the base path
# of a relative path. We can then walk the appropriate directory
# path to apply attributes.
for dirname in path.strip('/').split('/'):
curpath = '/'.join([curpath, dirname])
# Remove leading slash if we're creating a relative path
if not os.path.isabs(path):
curpath = curpath.lstrip('/')
b_curpath = to_bytes(curpath, errors='surrogate_or_strict')
if not os.path.exists(b_curpath):
try:
os.mkdir(b_curpath)
changed = True
except OSError as ex:
# Possibly something else created the dir since the os.path.exists
# check above. As long as it's a dir, we don't need to error out.
if not (ex.errno == errno.EEXIST and os.path.isdir(b_curpath)):
raise
tmp_file_args = file_args.copy()
tmp_file_args['path'] = curpath
changed = module.set_fs_attributes_if_different(tmp_file_args, changed, diff, expand=False)
except Exception as e:
module.fail_json(path=path, msg='There was an issue creating %s as requested: %s' % (curpath, to_native(e)))
# We already know prev_state is not 'absent', therefore it exists in some form.
elif prev_state != 'directory':
module.fail_json(path=path, msg='%s already exists as a %s' % (path, prev_state))
changed = module.set_fs_attributes_if_different(file_args, changed, diff, expand=False)
if recurse:
changed |= recursive_set_attributes(to_bytes(file_args['path'], errors='surrogate_or_strict'), follow, file_args)
module.exit_json(path=path, changed=changed, diff=diff)
def ensure_symlink(path, b_path, src, b_src, prev_state, follow, force):
file_args = module.load_file_common_arguments(module.params)
# source is both the source of a symlink or an informational passing of the src for a template module
# or copy module, even if this module never uses it, it is needed to key off some things
if src is None:
if follow:
# use the current target of the link as the source
src = to_native(os.path.realpath(b_path), errors='strict')
b_src = to_bytes(os.path.realpath(b_path), errors='strict')
if not os.path.islink(b_path) and os.path.isdir(b_path):
relpath = path
else:
b_relpath = os.path.dirname(b_path)
relpath = to_native(b_relpath, errors='strict')
absrc = os.path.join(relpath, src)
b_absrc = to_bytes(absrc, errors='surrogate_or_strict')
if not force and not os.path.exists(b_absrc):
module.fail_json(path=path, src=src, msg='src file does not exist, use "force=yes" if you really want to create the link: %s' % absrc)
if prev_state == 'directory':
if not force:
module.fail_json(path=path, msg='refusing to convert from %s to symlink for %s' % (prev_state, path))
elif os.listdir(b_path):
# refuse to replace a directory that has files in it
module.fail_json(path=path, msg='the directory %s is not empty, refusing to convert it' % path)
elif prev_state in ('file', 'hard') and not force:
module.fail_json(path=path, msg='refusing to convert from %s to symlink for %s' % (prev_state, path))
diff = initial_diff(path, 'link', prev_state)
changed = False
if prev_state == 'absent':
changed = True
elif prev_state == 'link':
b_old_src = os.readlink(b_path)
if b_old_src != b_src:
diff['before']['src'] = to_native(b_old_src, errors='strict')
diff['after']['src'] = src
changed = True
elif prev_state == 'hard':
changed = True
if not force:
module.fail_json(dest=path, src=src, msg='Cannot link, different hard link exists at destination')
elif prev_state == 'file':
changed = True
if not force:
module.fail_json(dest=path, src=src, msg='Cannot link, %s exists at destination' % prev_state)
elif prev_state == 'directory':
changed = True
if os.path.exists(b_path):
if not force:
module.fail_json(dest=path, src=src, msg='Cannot link, different hard link exists at destination')
else:
module.fail_json(dest=path, src=src, msg='unexpected position reached')
if changed and not module.check_mode:
if prev_state != 'absent':
# try to replace atomically
b_tmppath = to_bytes(os.path.sep).join(
[os.path.dirname(b_path), to_bytes(".%s.%s.tmp" % (os.getpid(), time.time()))]
)
try:
if prev_state == 'directory':
os.rmdir(b_path)
os.symlink(b_src, b_tmppath)
os.rename(b_tmppath, b_path)
except OSError as e:
if os.path.exists(b_tmppath):
os.unlink(b_tmppath)
module.fail_json(path=path, msg='Error while replacing: %s' % to_native(e, nonstring='simplerepr'))
else:
try:
os.symlink(b_src, b_path)
except OSError as e:
module.fail_json(path=path, msg='Error while linking: %s' % to_native(e, nonstring='simplerepr'))
if module.check_mode and not os.path.exists(b_path):
module.exit_json(dest=path, src=src, changed=changed, diff=diff)
# Whenever we create a link to a nonexistent target we know that the nonexistent target
# cannot have any permissions set on it. Skip setting those and emit a warning (the user
# can set follow=False to remove the warning)
if follow and os.path.islink(b_path) and not os.path.exists(file_args['path']):
module.warn('Cannot set fs attributes on a non-existent symlink target. follow should be'
' set to False to avoid this.')
else:
changed = module.set_fs_attributes_if_different(file_args, changed, diff, expand=False)
module.exit_json(dest=path, src=src, changed=changed, diff=diff)
def ensure_hardlink(path, b_path, src, b_src, prev_state, follow, force):
file_args = module.load_file_common_arguments(module.params)
# source is both the source of a symlink or an informational passing of the src for a template module
# or copy module, even if this module never uses it, it is needed to key off some things
if src is None:
# Note: Bug: if hard link exists, we shouldn't need to check this
module.fail_json(msg='src and dest are required for creating hardlinks')
if not os.path.isabs(b_src):
module.fail_json(msg="absolute paths are required")
if not os.path.islink(b_path) and os.path.isdir(b_path):
relpath = path
else:
b_relpath = os.path.dirname(b_path)
relpath = to_native(b_relpath, errors='strict')
absrc = os.path.join(relpath, src)
b_absrc = to_bytes(absrc, errors='surrogate_or_strict')
if not force and not os.path.exists(b_absrc):
module.fail_json(path=path, src=src, msg='src file does not exist, use "force=yes" if you really want to create the link: %s' % absrc)
diff = initial_diff(path, 'hard', prev_state)
changed = False
if prev_state == 'absent':
changed = True
elif prev_state == 'link':
b_old_src = os.readlink(b_path)
if b_old_src != b_src:
diff['before']['src'] = to_native(b_old_src, errors='strict')
diff['after']['src'] = src
changed = True
elif prev_state == 'hard':
if not os.stat(b_path).st_ino == os.stat(b_src).st_ino:
changed = True
if not force:
module.fail_json(dest=path, src=src, msg='Cannot link, different hard link exists at destination')
elif prev_state == 'file':
changed = True
if not force:
module.fail_json(dest=path, src=src, msg='Cannot link, %s exists at destination' % prev_state)
elif prev_state == 'directory':
changed = True
if os.path.exists(b_path):
if os.stat(b_path).st_ino == os.stat(b_src).st_ino:
module.exit_json(path=path, changed=False)
elif not force:
module.fail_json(dest=path, src=src, msg='Cannot link: different hard link exists at destination')
else:
module.fail_json(dest=path, src=src, msg='unexpected position reached')
if changed and not module.check_mode:
if prev_state != 'absent':
# try to replace atomically
b_tmppath = to_bytes(os.path.sep).join(
[os.path.dirname(b_path), to_bytes(".%s.%s.tmp" % (os.getpid(), time.time()))]
)
try:
if prev_state == 'directory':
if os.path.exists(b_path):
try:
os.unlink(b_path)
except OSError as e:
if e.errno != errno.ENOENT: # It may already have been removed
raise
os.link(b_src, b_tmppath)
os.rename(b_tmppath, b_path)
except OSError as e:
if os.path.exists(b_tmppath):
os.unlink(b_tmppath)
module.fail_json(path=path, msg='Error while replacing: %s' % to_native(e, nonstring='simplerepr'))
else:
try:
os.link(b_src, b_path)
except OSError as e:
module.fail_json(path=path, msg='Error while linking: %s' % to_native(e, nonstring='simplerepr'))
if module.check_mode and not os.path.exists(b_path):
module.exit_json(dest=path, src=src, changed=changed, diff=diff)
changed = module.set_fs_attributes_if_different(file_args, changed, diff, expand=False)
module.exit_json(dest=path, src=src, changed=changed, diff=diff)
def main():
global module
@ -202,297 +601,54 @@ def main():
supports_check_mode=True
)
# When we rewrite basic.py, we will do something similar to this on instantiating an AnsibleModule
sys.excepthook = _ansible_excepthook
additional_parameter_handling(module.params)
params = module.params
state = params['state']
recurse = params['recurse']
force = params['force']
diff_peek = params['_diff_peek']
follow = params['follow']
# modify paths as we later reload and pass, specially relevant when used by other modules.
path = params['path']
b_path = to_bytes(path, errors='surrogate_or_strict')
b_path = params['b_path']
src = params['src']
b_src = to_bytes(src, errors='surrogate_or_strict', nonstring='passthru')
b_src = params['b_src']
# short-circuit for diff_peek
if diff_peek is not None:
appears_binary = False
try:
f = open(b_path, 'rb')
head = f.read(8192)
f.close()
if b"\x00" in head:
appears_binary = True
except:
pass
module.exit_json(path=path, changed=False, appears_binary=appears_binary)
# state should default to file, but since that creates many conflicts,
# default state to 'current' when it exists.
prev_state = get_state(b_path)
if state is None:
if prev_state != 'absent':
state = prev_state
elif recurse:
state = 'directory'
else:
state = 'file'
# source is both the source of a symlink or an informational passing of the src for a template module
# or copy module, even if this module never uses it, it is needed to key off some things
if src is None:
if state in ('link', 'hard'):
if follow and state == 'link':
# use the current target of the link as the source
src = to_native(os.path.realpath(b_path), errors='strict')
b_src = to_bytes(os.path.realpath(b_path), errors='strict')
else:
module.fail_json(msg='src and dest are required for creating links')
# short-circuit for diff_peek
if params['_diff_peek'] is not None:
appears_binary = execute_diff_peek(b_path)
module.exit_json(path=path, changed=False, appears_binary=appears_binary)
# original_basename is used by other modules that depend on file.
if state not in ("link", "absent") and os.path.isdir(b_path):
basename = None
if params['original_basename']:
basename = params['original_basename']
elif src is not None:
basename = os.path.basename(src)
elif b_src is not None:
basename = os.path.basename(b_src)
if basename:
params['path'] = path = os.path.join(path, basename)
b_path = to_bytes(path, errors='surrogate_or_strict')
prev_state = get_state(b_path)
# make sure the target path is a directory when we're doing a recursive operation
if recurse and state != 'directory':
module.fail_json(path=path, msg="recurse option requires state to be 'directory'")
file_args = module.load_file_common_arguments(params)
changed = False
diff = {'before': {'path': path},
'after': {'path': path},
}
state_change = False
if prev_state != state:
diff['before']['state'] = prev_state
diff['after']['state'] = state
state_change = True
if state == 'absent':
if state_change:
if not module.check_mode:
if prev_state == 'directory':
try:
shutil.rmtree(b_path, ignore_errors=False)
except Exception as e:
module.fail_json(msg="rmtree failed: %s" % to_native(e))
else:
try:
os.unlink(b_path)
except OSError as e:
if e.errno != errno.ENOENT: # It may already have been removed
module.fail_json(path=path, msg="unlinking failed: %s " % to_native(e))
module.exit_json(path=path, changed=True, diff=diff)
else:
module.exit_json(path=path, changed=False)
elif state == 'file':
if state_change:
if follow and prev_state == 'link':
# follow symlink and operate on original
b_path = os.path.realpath(b_path)
path = to_native(b_path, errors='strict')
prev_state = get_state(b_path)
file_args['path'] = path
if prev_state not in ('file', 'hard'):
# file is not absent and any other state is a conflict
module.fail_json(path=path, msg='file (%s) is %s, cannot continue' % (path, prev_state))
changed = module.set_fs_attributes_if_different(file_args, changed, diff, expand=False)
module.exit_json(path=path, changed=changed, diff=diff)
if state == 'file':
result = ensure_file_attributes(path, b_path, prev_state, follow)
elif state == 'directory':
if follow and prev_state == 'link':
b_path = os.path.realpath(b_path)
path = to_native(b_path, errors='strict')
prev_state = get_state(b_path)
if prev_state == 'absent':
if module.check_mode:
module.exit_json(changed=True, diff=diff)
changed = True
curpath = ''
try:
# Split the path so we can apply filesystem attributes recursively
# from the root (/) directory for absolute paths or the base path
# of a relative path. We can then walk the appropriate directory
# path to apply attributes.
for dirname in path.strip('/').split('/'):
curpath = '/'.join([curpath, dirname])
# Remove leading slash if we're creating a relative path
if not os.path.isabs(path):
curpath = curpath.lstrip('/')
b_curpath = to_bytes(curpath, errors='surrogate_or_strict')
if not os.path.exists(b_curpath):
try:
os.mkdir(b_curpath)
except OSError as ex:
# Possibly something else created the dir since the os.path.exists
# check above. As long as it's a dir, we don't need to error out.
if not (ex.errno == errno.EEXIST and os.path.isdir(b_curpath)):
raise
tmp_file_args = file_args.copy()
tmp_file_args['path'] = curpath
changed = module.set_fs_attributes_if_different(tmp_file_args, changed, diff, expand=False)
except Exception as e:
module.fail_json(path=path, msg='There was an issue creating %s as requested: %s' % (curpath, to_native(e)))
# We already know prev_state is not 'absent', therefore it exists in some form.
elif prev_state != 'directory':
module.fail_json(path=path, msg='%s already exists as a %s' % (path, prev_state))
changed = module.set_fs_attributes_if_different(file_args, changed, diff, expand=False)
if recurse:
changed |= recursive_set_attributes(module, to_bytes(file_args['path'], errors='surrogate_or_strict'), follow, file_args)
module.exit_json(path=path, changed=changed, diff=diff)
elif state in ('link', 'hard'):
if not os.path.islink(b_path) and os.path.isdir(b_path):
relpath = path
else:
b_relpath = os.path.dirname(b_path)
relpath = to_native(b_relpath, errors='strict')
absrc = os.path.join(relpath, src)
b_absrc = to_bytes(absrc, errors='surrogate_or_strict')
if not force and not os.path.exists(b_absrc):
module.fail_json(path=path, src=src, msg='src file does not exist, use "force=yes" if you really want to create the link: %s' % absrc)
if state == 'hard':
if not os.path.isabs(b_src):
module.fail_json(msg="absolute paths are required")
elif prev_state == 'directory':
if not force:
module.fail_json(path=path, msg='refusing to convert between %s and %s for %s' % (prev_state, state, path))
elif os.listdir(b_path):
# refuse to replace a directory that has files in it
module.fail_json(path=path, msg='the directory %s is not empty, refusing to convert it' % path)
elif prev_state in ('file', 'hard') and not force:
module.fail_json(path=path, msg='refusing to convert between %s and %s for %s' % (prev_state, state, path))
if prev_state == 'absent':
changed = True
elif prev_state == 'link':
b_old_src = os.readlink(b_path)
if b_old_src != b_src:
diff['before']['src'] = to_native(b_old_src, errors='strict')
diff['after']['src'] = src
changed = True
elif prev_state == 'hard':
if not (state == 'hard' and os.stat(b_path).st_ino == os.stat(b_src).st_ino):
changed = True
if not force:
module.fail_json(dest=path, src=src, msg='Cannot link, different hard link exists at destination')
elif prev_state == 'file':
changed = True
if not force:
module.fail_json(dest=path, src=src, msg='Cannot link, %s exists at destination' % prev_state)
elif prev_state == 'directory':
changed = True
if os.path.exists(b_path):
if state == 'hard' and os.stat(b_path).st_ino == os.stat(b_src).st_ino:
module.exit_json(path=path, changed=False)
elif not force:
module.fail_json(dest=path, src=src, msg='Cannot link, different hard link exists at destination')
else:
module.fail_json(dest=path, src=src, msg='unexpected position reached')
if changed and not module.check_mode:
if prev_state != 'absent':
# try to replace atomically
b_tmppath = to_bytes(os.path.sep).join(
[os.path.dirname(b_path), to_bytes(".%s.%s.tmp" % (os.getpid(), time.time()))]
)
try:
if prev_state == 'directory' and state == 'link':
os.rmdir(b_path)
elif prev_state == 'directory' and state == 'hard':
if os.path.exists(b_path):
try:
os.unlink(b_path)
except OSError as e:
if e.errno != errno.ENOENT: # It may already have been removed
raise
if state == 'hard':
os.link(b_src, b_tmppath)
else:
os.symlink(b_src, b_tmppath)
os.rename(b_tmppath, b_path)
except OSError as e:
if os.path.exists(b_tmppath):
os.unlink(b_tmppath)
module.fail_json(path=path, msg='Error while replacing: %s' % to_native(e, nonstring='simplerepr'))
else:
try:
if state == 'hard':
os.link(b_src, b_path)
else:
os.symlink(b_src, b_path)
except OSError as e:
module.fail_json(path=path, msg='Error while linking: %s' % to_native(e, nonstring='simplerepr'))
if module.check_mode and not os.path.exists(b_path):
module.exit_json(dest=path, src=src, changed=changed, diff=diff)
# Whenever we create a link to a nonexistent target we know that the nonexistent target
# cannot have any permissions set on it. Skip setting those and emit a warning (the user
# can set follow=False to remove the warning)
if (state == 'link' and params['follow'] and os.path.islink(params['path']) and
not os.path.exists(file_args['path'])):
module.warn('Cannot set fs attributes on a non-existent symlink target. follow should be'
' set to False to avoid this.')
else:
changed = module.set_fs_attributes_if_different(file_args, changed, diff, expand=False)
module.exit_json(dest=path, src=src, changed=changed, diff=diff)
result = ensure_directory(path, b_path, prev_state, follow, recurse)
elif state == 'link':
result = ensure_symlink(path, b_path, src, b_src, prev_state, follow, force)
elif state == 'hard':
result = ensure_hardlink(path, b_path, src, b_src, prev_state, follow, force)
elif state == 'touch':
if not module.check_mode:
result = execute_touch(path, b_path, prev_state, follow)
elif state == 'absent':
result = ensure_absent(path, b_path, prev_state)
module.exit_json(**result)
if prev_state == 'absent':
try:
open(b_path, 'wb').close()
except (OSError, IOError) as e:
module.fail_json(path=path, msg='Error, could not touch target: %s' % to_native(e, nonstring='simplerepr'))
elif prev_state in ('file', 'directory', 'hard'):
try:
os.utime(b_path, None)
except OSError as e:
module.fail_json(path=path, msg='Error while touching existing target: %s' % to_native(e, nonstring='simplerepr'))
else:
module.fail_json(msg='Cannot touch other than files, directories, and hardlinks (%s is %s)' % (path, prev_state))
try:
module.set_fs_attributes_if_different(file_args, True, diff, expand=False)
except SystemExit as e:
if e.code:
# We take this to mean that fail_json() was called from
# somewhere in basic.py
if prev_state == 'absent':
# If we just created the file we can safely remove it
os.remove(b_path)
raise e
module.exit_json(dest=path, changed=True, diff=diff)
module.fail_json(path=path, msg='unexpected position reached')
module.exit_json(**result)
if __name__ == '__main__':