[refactor] cleanup helper usage to adapt to new one

also cleanups build process

5 files changed, 76 insertions, 73 deletions

diff --git a/pkg/osx/__init__.py b/pkg/osx/__init__.py
index 4731a6ef..77ff624b 100644
--- a/pkg/osx/__init__.py
+++ b/pkg/osx/__init__.py
@@ -41,7 +41,7 @@ from __future__ import (absolute_import, unicode_literals)
 
 from .daemon import DaemonContext
 
-
+
 # Local variables:
 # coding: utf-8
 # mode: python
diff --git a/pkg/osx/_metadata.py b/pkg/osx/_metadata.py
index 6d22a2b7..88843df7 100644
--- a/pkg/osx/_metadata.py
+++ b/pkg/osx/_metadata.py
@@ -21,10 +21,11 @@ import datetime
 
 import pkg_resources
 
-
+
 distribution_name = "python-daemon"
 version_info_filename = "version_info.json"
 
+
 def get_distribution_version_info(filename=version_info_filename):
     """ Get the version info from the installed distribution.
 
@@ -37,10 +38,10 @@ def get_distribution_version_info(filename=version_info_filename):
 
         """
     version_info = {
-            'release_date': "UNKNOWN",
-            'version': "UNKNOWN",
-            'maintainer': "UNKNOWN",
-            }
+        'release_date': "UNKNOWN",
+        'version': "UNKNOWN",
+        'maintainer': "UNKNOWN",
+    }
 
     try:
         distribution = pkg_resources.get_distribution(distribution_name)
@@ -58,12 +59,13 @@ version_info = get_distribution_version_info()
 
 version_installed = version_info['version']
 
-
+
 rfc822_person_regex = re.compile(
-        "^(?P<name>[^<]+) <(?P<email>[^>]+)>$")
+    "^(?P<name>[^<]+) <(?P<email>[^>]+)>$")
 
 ParsedPerson = collections.namedtuple('ParsedPerson', ['name', 'email'])
 
+
 def parse_person_field(value):
     """ Parse a person field into name and email address.
 
@@ -80,18 +82,18 @@ def parse_person_field(value):
     if len(value):
         if match is not None:
             result = ParsedPerson(
-                    name=match.group('name'),
-                    email=match.group('email'))
+                name=match.group('name'),
+                email=match.group('email'))
         else:
             result = ParsedPerson(name=value, email=None)
 
-    return result    
+    return result
 
 author_name = "Ben Finney"
 author_email = "ben+python@benfinney.id.au"
 author = "{name} <{email}>".format(name=author_name, email=author_email)
 
-
+
 class YearRange:
     """ A range of years spanning a period. """
 
@@ -140,11 +142,11 @@ build_date = version_info['release_date']
 copyright_year_range = make_year_range(copyright_year_begin, build_date)
 
 copyright = "Copyright © {year_range} {author} and others".format(
-        year_range=copyright_year_range, author=author)
+    year_range=copyright_year_range, author=author)
 license = "Apache-2"
 url = "https://alioth.debian.org/projects/python-daemon/"
 
-
+
 # Local variables:
 # coding: utf-8
 # mode: python
diff --git a/pkg/osx/daemon.py b/pkg/osx/daemon.py
index 07810cf1..7ca8770e 100644
--- a/pkg/osx/daemon.py
+++ b/pkg/osx/daemon.py
@@ -36,7 +36,7 @@ except NameError:
     basestring = str
     unicode = str
 
-
+
 class DaemonError(Exception):
     """ Base exception class for errors from this module. """
 
@@ -56,7 +56,7 @@ class DaemonOSEnvironmentError(DaemonError, OSError):
 class DaemonProcessDetachError(DaemonError, OSError):
     """ Exception raised when process detach fails. """
 
-
+
 class DaemonContext:
     """ Context for turning the current program into a daemon process.
 
@@ -245,7 +245,7 @@ class DaemonContext:
             stdout=None,
             stderr=None,
             signal_map=None,
-            ):
+    ):
         """ Set up a new instance. """
         self.chroot_directory = chroot_directory
         self.working_directory = working_directory
@@ -427,8 +427,8 @@ class DaemonContext:
 
             """
         exception = SystemExit(
-                "Terminating on signal {signal_number!r}".format(
-                    signal_number=signal_number))
+            "Terminating on signal {signal_number!r}".format(
+                signal_number=signal_number))
         raise exception
 
     def _get_exclude_file_descriptors(self):
@@ -454,8 +454,8 @@ class DaemonContext:
         if files_preserve is None:
             files_preserve = []
         files_preserve.extend(
-                item for item in [self.stdin, self.stdout, self.stderr]
-                if hasattr(item, 'fileno'))
+            item for item in [self.stdin, self.stdout, self.stderr]
+            if hasattr(item, 'fileno'))
 
         exclude_descriptors = set()
         for item in files_preserve:
@@ -502,8 +502,8 @@ class DaemonContext:
 
             """
         signal_handler_map = dict(
-                (signal_number, self._make_signal_handler(target))
-                for (signal_number, target) in self.signal_map.items())
+            (signal_number, self._make_signal_handler(target))
+            for (signal_number, target) in self.signal_map.items())
         return signal_handler_map
 
 
@@ -529,7 +529,7 @@ def _get_file_descriptor(obj):
 
     return file_descriptor
 
-
+
 def change_working_directory(directory):
     """ Change the working directory of this process.
 
@@ -541,7 +541,7 @@ def change_working_directory(directory):
         os.chdir(directory)
     except Exception as exc:
         error = DaemonOSEnvironmentError(
-                "Unable to change working directory ({exc})".format(exc=exc))
+            "Unable to change working directory ({exc})".format(exc=exc))
         raise error
 
 
@@ -561,7 +561,7 @@ def change_root_directory(directory):
         os.chroot(directory)
     except Exception as exc:
         error = DaemonOSEnvironmentError(
-                "Unable to change root directory ({exc})".format(exc=exc))
+            "Unable to change root directory ({exc})".format(exc=exc))
         raise error
 
 
@@ -576,7 +576,7 @@ def change_file_creation_mask(mask):
         os.umask(mask)
     except Exception as exc:
         error = DaemonOSEnvironmentError(
-                "Unable to change file creation mask ({exc})".format(exc=exc))
+            "Unable to change file creation mask ({exc})".format(exc=exc))
         raise error
 
 
@@ -597,10 +597,10 @@ def change_process_owner(uid, gid):
         os.setuid(uid)
     except Exception as exc:
         error = DaemonOSEnvironmentError(
-                "Unable to change process owner ({exc})".format(exc=exc))
+            "Unable to change process owner ({exc})".format(exc=exc))
         raise error
 
-
+
 def prevent_core_dump():
     """ Prevent this process from generating a core dump.
 
@@ -618,15 +618,15 @@ def prevent_core_dump():
         core_limit_prev = resource.getrlimit(core_resource)
     except ValueError as exc:
         error = DaemonOSEnvironmentError(
-                "System does not support RLIMIT_CORE resource limit"
-                " ({exc})".format(exc=exc))
+            "System does not support RLIMIT_CORE resource limit"
+            " ({exc})".format(exc=exc))
         raise error
 
     # Set hard and soft limits to zero, i.e. no core dump at all.
     core_limit = (0, 0)
     resource.setrlimit(core_resource, core_limit)
 
-
+
 def detach_process_context():
     """ Detach the process context from parent and session.
 
@@ -656,15 +656,15 @@ def detach_process_context():
                 os._exit(0)
         except OSError as exc:
             error = DaemonProcessDetachError(
-                    "{message}: [{exc.errno:d}] {exc.strerror}".format(
-                        message=error_message, exc=exc))
+                "{message}: [{exc.errno:d}] {exc.strerror}".format(
+                    message=error_message, exc=exc))
             raise error
 
     fork_then_exit_parent(error_message="Failed first fork")
     os.setsid()
     fork_then_exit_parent(error_message="Failed second fork")
 
-
+
 def is_process_started_by_init():
     """ Determine whether the current process is started by `init`.
 
@@ -700,7 +700,7 @@ def is_socket(fd):
 
     try:
         socket_type = file_socket.getsockopt(
-                socket.SOL_SOCKET, socket.SO_TYPE)
+            socket.SOL_SOCKET, socket.SO_TYPE)
     except socket.error as exc:
         exc_errno = exc.args[0]
         if exc_errno == errno.ENOTSOCK:
@@ -759,7 +759,7 @@ def is_detach_process_context_required():
 
     return result
 
-
+
 def close_file_descriptor_if_open(fd):
     """ Close a file descriptor if already open.
 
@@ -778,13 +778,14 @@ def close_file_descriptor_if_open(fd):
             pass
         else:
             error = DaemonOSEnvironmentError(
-                    "Failed to close file descriptor {fd:d} ({exc})".format(
-                        fd=fd, exc=exc))
+                "Failed to close file descriptor {fd:d} ({exc})".format(
+                    fd=fd, exc=exc))
             raise error
 
 
 MAXFD = 2048
 
+
 def get_maximum_file_descriptors():
     """ Get the maximum number of open file descriptors for this process.
 
@@ -820,7 +821,7 @@ def close_all_open_files(exclude=set()):
         if fd not in exclude:
             close_file_descriptor_if_open(fd)
 
-
+
 def redirect_stream(system_stream, target_stream):
     """ Redirect a system stream to a specified file.
 
@@ -844,7 +845,7 @@ def redirect_stream(system_stream, target_stream):
         target_fd = target_stream.fileno()
     os.dup2(target_fd, system_stream.fileno())
 
-
+
 def make_default_signal_map():
     """ Make the default signal map for this system.
 
@@ -855,15 +856,15 @@ def make_default_signal_map():
 
         """
     name_map = {
-            'SIGTSTP': None,
-            'SIGTTIN': None,
-            'SIGTTOU': None,
-            'SIGTERM': 'terminate',
-            }
+        'SIGTSTP': None,
+        'SIGTTIN': None,
+        'SIGTTOU': None,
+        'SIGTERM': 'terminate',
+    }
     signal_map = dict(
-            (getattr(signal, name), target)
-            for (name, target) in name_map.items()
-            if hasattr(signal, name))
+        (getattr(signal, name), target)
+        for (name, target) in name_map.items()
+        if hasattr(signal, name))
 
     return signal_map
 
@@ -895,7 +896,7 @@ def register_atexit_function(func):
         """
     atexit.register(func)
 
-
+
 def _chain_exception_from_existing_exception_context(exc, as_cause=False):
     """ Decorate the specified exception with the existing exception context.
 
@@ -918,7 +919,7 @@ def _chain_exception_from_existing_exception_context(exc, as_cause=False):
         exc.__context__ = existing_exc
     exc.__traceback__ = existing_traceback
 
-
+
 # Local variables:
 # coding: utf-8
 # mode: python
diff --git a/pkg/osx/pidfile.py b/pkg/osx/pidfile.py
index 4517ee0e..68f7b2ac 100644
--- a/pkg/osx/pidfile.py
+++ b/pkg/osx/pidfile.py
@@ -17,7 +17,7 @@ from __future__ import (absolute_import, unicode_literals)
 
 from lockfile.pidlockfile import PIDLockFile
 
-
+
 class TimeoutPIDLockFile(PIDLockFile, object):
     """ Lockfile with default timeout, implemented as a Unix PID file.
 
@@ -59,7 +59,7 @@ class TimeoutPIDLockFile(PIDLockFile, object):
             timeout = self.acquire_timeout
         super(TimeoutPIDLockFile, self).acquire(timeout, *args, **kwargs)
 
-
+
 # Local variables:
 # coding: utf-8
 # mode: python
diff --git a/pkg/osx/runner.py b/pkg/osx/runner.py
index 6973cf1c..de9025d3 100644
--- a/pkg/osx/runner.py
+++ b/pkg/osx/runner.py
@@ -37,7 +37,7 @@ from .daemon import (basestring, unicode)
 from .daemon import DaemonContext
 from .daemon import _chain_exception_from_existing_exception_context
 
-
+
 class DaemonRunnerError(Exception):
     """ Abstract base class for errors from DaemonRunner. """
 
@@ -65,7 +65,7 @@ class DaemonRunnerStartFailureError(DaemonRunnerError, RuntimeError):
 class DaemonRunnerStopFailureError(DaemonRunnerError, RuntimeError):
     """ Raised when failure stopping DaemonRunner. """
 
-
+
 class DaemonRunner:
     """ Controller for a callable running in a separate background process.
 
@@ -110,12 +110,12 @@ class DaemonRunner:
         self.daemon_context.stdin = open(app.stdin_path, 'rt')
         self.daemon_context.stdout = open(app.stdout_path, 'w+t')
         self.daemon_context.stderr = open(
-                app.stderr_path, 'w+t', buffering=0)
+            app.stderr_path, 'w+t', buffering=0)
 
         self.pidfile = None
         if app.pidfile_path is not None:
             self.pidfile = make_pidlockfile(
-                    app.pidfile_path, app.pidfile_timeout)
+                app.pidfile_path, app.pidfile_timeout)
         self.daemon_context.pidfile = self.pidfile
 
     def _usage_exit(self, argv):
@@ -130,7 +130,7 @@ class DaemonRunner:
         usage_exit_code = 2
         action_usage = "|".join(self.action_funcs.keys())
         message = "usage: {progname} {usage}".format(
-                progname=progname, usage=action_usage)
+            progname=progname, usage=action_usage)
         emit_message(message)
         sys.exit(usage_exit_code)
 
@@ -175,8 +175,8 @@ class DaemonRunner:
             self.daemon_context.open()
         except lockfile.AlreadyLocked:
             error = DaemonRunnerStartFailureError(
-                    "PID file {pidfile.path!r} already locked".format(
-                        pidfile=self.pidfile))
+                "PID file {pidfile.path!r} already locked".format(
+                    pidfile=self.pidfile))
             raise error
 
         pid = os.getpid()
@@ -198,8 +198,8 @@ class DaemonRunner:
             os.kill(pid, signal.SIGTERM)
         except OSError as exc:
             error = DaemonRunnerStopFailureError(
-                    "Failed to terminate {pid:d}: {exc}".format(
-                        pid=pid, exc=exc))
+                "Failed to terminate {pid:d}: {exc}".format(
+                    pid=pid, exc=exc))
             raise error
 
     def _stop(self):
@@ -212,8 +212,8 @@ class DaemonRunner:
             """
         if not self.pidfile.is_locked():
             error = DaemonRunnerStopFailureError(
-                    "PID file {pidfile.path!r} not locked".format(
-                        pidfile=self.pidfile))
+                "PID file {pidfile.path!r} not locked".format(
+                    pidfile=self.pidfile))
             raise error
 
         if is_pidfile_stale(self.pidfile):
@@ -228,10 +228,10 @@ class DaemonRunner:
         self._start()
 
     action_funcs = {
-            'start': _start,
-            'stop': _stop,
-            'restart': _restart,
-            }
+        'start': _start,
+        'stop': _stop,
+        'restart': _restart,
+    }
 
     def _get_action_func(self):
         """ Get the function for the specified action.
@@ -249,8 +249,8 @@ class DaemonRunner:
             func = self.action_funcs[self.action]
         except KeyError:
             error = DaemonRunnerInvalidActionError(
-                    "Unknown action: {action!r}".format(
-                        action=self.action))
+                "Unknown action: {action!r}".format(
+                    action=self.action))
             raise error
         return func
 
@@ -279,11 +279,11 @@ def make_pidlockfile(path, acquire_timeout):
     """ Make a PIDLockFile instance with the given filesystem path. """
     if not isinstance(path, basestring):
         error = ValueError("Not a filesystem path: {path!r}".format(
-                path=path))
+            path=path))
         raise error
     if not os.path.isabs(path):
         error = ValueError("Not an absolute path: {path!r}".format(
-                path=path))
+            path=path))
         raise error
     lockfile = pidfile.TimeoutPIDLockFile(path, acquire_timeout)
 
@@ -316,7 +316,7 @@ def is_pidfile_stale(pidfile):
 
     return result
 
-
+
 # Local variables:
 # coding: utf-8
 # mode: python