Merge ~cjwatson/launchpad:unused-functions into launchpad:master

[Colin Watson]

Remove various unused top-level functions

[Ioana Lasc (ilasc)]

review: Approve

diff --git a/lib/lp/app/browser/tales.py b/lib/lp/app/browser/tales.py
index 115bc0f..3020b39 100644
--- a/lib/lp/app/browser/tales.py
+++ b/lib/lp/app/browser/tales.py
@@ -2580,15 +2580,6 @@ class RevisionAuthorFormatterAPI(ObjectFormatterAPI):
             return ''
 
 
-def clean_path_segments(request):
-    """Returns list of path segments, excluding system-related segments."""
-    proto_host_port = request.getApplicationURL()
-    clean_url = request.getURL()
-    clean_path = clean_url[len(proto_host_port):]
-    clean_path_split = clean_path.split('/')
-    return clean_path_split
-
-
 @implementer(ITraversable)
 class PermissionRequiredQuery:
     """Check if the logged in user has a given permission on a given object.
diff --git a/lib/lp/buildmaster/manager.py b/lib/lp/buildmaster/manager.py
index 9e58a34..039d215 100644
--- a/lib/lp/buildmaster/manager.py
+++ b/lib/lp/buildmaster/manager.py
@@ -77,12 +77,6 @@ JOB_RESET_THRESHOLD = 3
 BUILDER_FAILURE_THRESHOLD = 5
 
 
-def build_candidate_sort_key(candidate):
-    # Sort key for build candidates.  This must match the ordering used in
-    # BuildQueueSet.findBuildCandidates.
-    return -candidate.lastscore, candidate.id
-
-
 class PrefetchedBuildCandidates:
     """A set of build candidates updated using efficient bulk queries.
 
diff --git a/lib/lp/buildmaster/tests/test_doc.py b/lib/lp/buildmaster/tests/test_doc.py
index 15cebaa..0630514 100644
--- a/lib/lp/buildmaster/tests/test_doc.py
+++ b/lib/lp/buildmaster/tests/test_doc.py
@@ -7,14 +7,7 @@ from __future__ import absolute_import, print_function, unicode_literals
 
 import os
 
-from lp.services.config import config
 from lp.services.testing import build_test_suite
-from lp.testing import (
-    ANONYMOUS,
-    login,
-    logout,
-    )
-from lp.testing.dbuser import switch_dbuser
 from lp.testing.layers import (
     LaunchpadFunctionalLayer,
     LaunchpadZopelessLayer,
@@ -22,7 +15,6 @@ from lp.testing.layers import (
 from lp.testing.pages import setUpGlobs
 from lp.testing.systemdocs import (
     LayeredDocFileSuite,
-    setGlobs,
     setUp,
     tearDown,
     )
@@ -31,23 +23,6 @@ from lp.testing.systemdocs import (
 here = os.path.dirname(os.path.realpath(__file__))
 
 
-def buildmasterSetUp(test):
-    """Setup a typical builddmaster test environment.
-
-    Log in as ANONYMOUS and perform DB operations as the builddmaster
-    dbuser.
-    """
-    test_dbuser = config.builddmaster.dbuser
-    login(ANONYMOUS)
-    setGlobs(test)
-    test.globs['test_dbuser'] = test_dbuser
-    switch_dbuser(test_dbuser)
-
-
-def buildmasterTearDown(test):
-    logout()
-
-
 special = {
     'builder.txt': LayeredDocFileSuite(
         '../doc/builder.txt',
diff --git a/lib/lp/scripts/utilities/importpedant.py b/lib/lp/scripts/utilities/importpedant.py
index b7014ba..e19b5f1 100644
--- a/lib/lp/scripts/utilities/importpedant.py
+++ b/lib/lp/scripts/utilities/importpedant.py
@@ -21,10 +21,6 @@ warnings.filterwarnings('ignore', category=UserWarning, append=True,
                         message=r'Module .*? is being added to sys.path')
 
 
-def text_lines_to_set(text):
-    return set(line.strip() for line in text.splitlines() if line.strip())
-
-
 # Sometimes, third-party modules don't export all of their public APIs through
 # __all__. The following dict maps from such modules to a list of attributes
 # that are allowed to be imported, whether or not they are in __all__.
diff --git a/lib/lp/services/webapp/adapter.py b/lib/lp/services/webapp/adapter.py
index cb5ac0a..37c819d 100644
--- a/lib/lp/services/webapp/adapter.py
+++ b/lib/lp/services/webapp/adapter.py
@@ -35,7 +35,6 @@ from storm.databases.postgres import (
 from storm.exceptions import TimeoutError
 from storm.store import Store
 from storm.tracer import install_tracer
-from storm.zope.interfaces import IZStorm
 from timeline.timeline import Timeline
 import transaction
 from zope.component import getUtility
@@ -88,7 +87,6 @@ __all__ = [
     'get_request_statements',
     'get_request_start_time',
     'get_request_duration',
-    'get_store_name',
     'print_queries',
     'soft_timeout_expired',
     'start_sql_logging',
@@ -852,11 +850,6 @@ def get_object_from_master_store(obj):
     return obj
 
 
-def get_store_name(store):
-    """Helper to retrieve the store name for a ZStorm Store."""
-    return getUtility(IZStorm).get_name(store)
-
-
 class WhichDbView(LaunchpadView):
     "A page that reports which database is being used by default."
 
diff --git a/lib/lp/services/webapp/canonicalurl.py b/lib/lp/services/webapp/canonicalurl.py
index c427aad..bd2a205 100644
--- a/lib/lp/services/webapp/canonicalurl.py
+++ b/lib/lp/services/webapp/canonicalurl.py
@@ -9,12 +9,10 @@ __metaclass__ = type
 __all__ = [
     'nearest_adapter',
     'nearest_context_with_adapter',
-    'nearest_provides_or_adapted',
     ]
 
 from zope.component import queryAdapter
 
-from lp.services.webapp.interfaces import NoCanonicalUrl
 # XXX mars 2008-07-17
 # This function should be moved into lazr.canonicalurl.
 # See bug #185958.
@@ -49,23 +47,3 @@ def nearest_adapter(obj, interface, name=u''):
     context, adapter = nearest_context_with_adapter(obj, interface, name=name)
     # Will be None, None if not found.
     return adapter
-
-
-def nearest_provides_or_adapted(obj, interface):
-    """Find the nearest object that provides or can be adapted to `interface`.
-
-    The function looks upward through the canonical url chain.
-
-    :return None: if there is no object that provides or can be adapted in
-        the url chain.
-    """
-    try:
-        for curr_obj in canonical_url_iterator(obj):
-            # If the curr_obj implements the interface, it is returned.
-            impl = interface(curr_obj, None)
-            if impl is not None:
-                return impl
-    except NoCanonicalUrl:
-        # Do not break when canonical URL is not defined for an object.
-        pass
-    return None
diff --git a/lib/lp/soyuz/model/packagecloner.py b/lib/lp/soyuz/model/packagecloner.py
index 7c55c51..bbf6e29 100644
--- a/lib/lp/soyuz/model/packagecloner.py
+++ b/lib/lp/soyuz/model/packagecloner.py
@@ -7,12 +7,10 @@ __metaclass__ = type
 
 __all__ = [
     'PackageCloner',
-    'clone_packages',
     ]
 
 
 import transaction
-from zope.component import getUtility
 from zope.interface import implementer
 
 from lp.services.database.constants import UTC_NOW
@@ -26,28 +24,6 @@ from lp.soyuz.interfaces.packagecloner import IPackageCloner
 from lp.soyuz.model.publishing import BinaryPackagePublishingHistory
 
 
-def clone_packages(origin, destination, distroarchseries_list=None):
-    """Copies packages from origin to destination package location.
-
-    Binary packages are only copied for the `DistroArchSeries` pairs
-    specified.
-
-    This function is meant to simplify the utilization of the package
-    cloning functionality.
-
-    @type origin: PackageLocation
-    @param origin: the location from which packages are to be copied.
-    @type destination: PackageLocation
-    @param destination: the location to which the data is to be copied.
-    @type distroarchseries_list: list of pairs of (origin, destination)
-        distroarchseries instances.
-    @param distroarchseries_list: the binary packages will be copied
-        for the distroarchseries pairs specified (if any).
-    """
-    pkg_cloner = getUtility(IPackageCloner)
-    pkg_cloner.clonePackages(origin, destination, distroarchseries_list)
-
-
 @implementer(IPackageCloner)
 class PackageCloner:
     """Used for copying of various publishing history data across archives.
diff --git a/lib/lp/testing/layers.py b/lib/lp/testing/layers.py
index 1447f3b..1060fa9 100644
--- a/lib/lp/testing/layers.py
+++ b/lib/lp/testing/layers.py
@@ -221,28 +221,6 @@ def reconnect_stores(reset=False):
     assert session_store() is not None, 'Failed to reconnect'
 
 
-def wait_children(seconds=120):
-    """Wait for all children to exit.
-
-    :param seconds: Maximum number of seconds to wait.  If None, wait
-        forever.
-    """
-    now = datetime.datetime.now
-    if seconds is None:
-        until = None
-    else:
-        until = now() + datetime.timedelta(seconds=seconds)
-    while True:
-        try:
-            os.waitpid(-1, os.WNOHANG)
-        except OSError as error:
-            if error.errno != errno.ECHILD:
-                raise
-            break
-        if until is not None and now() > until:
-            break
-
-
 class BaseLayer:
     """Base layer.