Allow performing actions on instances in bulk

Change-Id: I9ceee57c405a2f195d6e344a5c4cfa0fcfe7556f

anvil/actions/base.py

@@ -206,8 +206,85 @@ class Action(object):
             raise ValueError("Phase name must not be empty")
         return sh.joinpths(self.phase_dir, "%s.phases" % (phase_name))
 
+    def _run_many_phase(self, functors, group, instances, phase_name, *inv_phase_names):
+        """Run a given 'functor' across all of the components, passing *all* instances to run."""
+
+        # This phase recorder will be used to check if a given component
+        # and action has ran in the past, if so that components action
+        # will not be ran again. It will also be used to mark that a given
+        # component has completed a phase (if that phase runs).
+        if not phase_name:
+            phase_recorder = phase.NullPhaseRecorder()
+        else:
+            phase_recorder = phase.PhaseRecorder(self._get_phase_filename(phase_name))
+
+        # These phase recorders will be used to undo other actions activities
+        # ie, when an install completes you want the uninstall phase to be
+        # removed from that actions phase file (and so on). This list will be
+        # used to accomplish that.
+        neg_phase_recs = []
+        if inv_phase_names:
+            for n in inv_phase_names:
+                if not n:
+                    neg_phase_recs.append(phase.NullPhaseRecorder())
+                else:
+                    neg_phase_recs.append(phase.PhaseRecorder(self._get_phase_filename(n)))
+
+        def change_activate(instance, on_off):
+            # Activate/deactivate a component instance and there siblings (if any)
+            #
+            # This is used when you say are looking at components
+            # that have been activated before your component has been.
+            #
+            # Typically this is useful for checking if a previous component
+            # has a shared dependency with your component and if so then there
+            # is no need to reinstall said dependency...
+            instance.activated = on_off
+            for (_name, sibling_instance) in instance.siblings.items():
+                sibling_instance.activated = on_off
+
+        def run_inverse_recorders(c_name):
+            for n in neg_phase_recs:
+                n.unmark(c_name)
+
+        # Reset all activations
+        for c, instance in six.iteritems(instances):
+            change_activate(instance, False)
+
+        # Run all components which have not been ran previously (due to phase tracking)
+        instances_started = utils.OrderedDict()
+        for c, instance in six.iteritems(instances):
+            if c in SPECIAL_GROUPS:
+                c = "%s_%s" % (c, group)
+            if c in phase_recorder:
+                LOG.debug("Skipping phase named %r for component %r since it already happened.", phase_name, c)
+            else:
+                try:
+                    with phase_recorder.mark(c):
+                        if functors.start:
+                            functors.start(instance)
+                        instances_started[c] = instance
+                except excp.NoTraceException:
+                    pass
+        if functors.run:
+            results = functors.run(list(six.itervalues(instances_started)))
+        else:
+            results = [None] * len(instances_started)
+        instances_ran = instances_started
+        for i, (c, instance) in enumerate(six.iteritems(instances_ran)):
+            result = results[i]
+            try:
+                with phase_recorder.mark(c):
+                    if functors.end:
+                        functors.end(instance, result)
+            except excp.NoTraceException:
+                pass
+        for c, instance in six.iteritems(instances_ran):
+            change_activate(instance, True)
+            run_inverse_recorders(c)
+
     def _run_phase(self, functors, group, instances, phase_name, *inv_phase_names):
-        """Run a given 'functor' across all of the components, in order."""
+        """Run a given 'functor' across all of the components, in order individually."""
 
         # This phase recorder will be used to check if a given component
         # and action has ran in the past, if so that components action

anvil/actions/prepare.py

@@ -67,18 +67,34 @@ class PrepareAction(action.Action):
             )
             dependency_handler.package_start()
             removals.extend(states.reverts("package"))
-            try:
+            if not hasattr(dependency_handler, 'package_instances'):
-                self._run_phase(
+                try:
-                    action.PhaseFunctors(
+                    self._run_phase(
-                        start=lambda i: LOG.info("Packaging %s.", colorizer.quote(i.name)),
+                        action.PhaseFunctors(
-                        run=dependency_handler.package_instance,
+                            start=lambda i: LOG.info("Packaging %s.", colorizer.quote(i.name)),
-                        end=None,
+                            run=dependency_handler.package_instance,
-                    ),
+                            end=None,
-                    group,
+                        ),
-                    instances,
+                        group,
-                    "package",
+                        instances,
-                    *removals
+                        "package",
-                )
+                        *removals
-            finally:
+                    )
-                dependency_handler.package_finish()
+                finally:
+                    dependency_handler.package_finish()
+            else:
+                try:
+                    self._run_many_phase(
+                        action.PhaseFunctors(
+                            start=lambda i: LOG.info("Packaging %s.", colorizer.quote(i.name)),
+                            run=dependency_handler.package_instances,
+                            end=None,
+                        ),
+                        group,
+                        instances,
+                        "package",
+                        *removals
+                    )
+                finally:
+                    dependency_handler.package_finish()
             prior_groups.append((group, instances))

anvil/packaging/venv.py

@@ -21,6 +21,8 @@ import os
 import re
 import tarfile
 
+from concurrent import futures
+import futurist
 import six
 
 from anvil import colorizer
@@ -58,6 +60,11 @@ class VenvDependencyHandler(base.DependencyHandler):
                                                     instances, opts, group,
                                                     prior_groups)
         self.cache_dir = sh.joinpths(self.root_dir, "pip-cache")
+        self.jobs = max(0, int(opts.get('jobs', 0)))
+        if self.jobs >= 1:
+            self.executor = futurist.ThreadPoolExecutor(max_workers=self.jobs)
+        else:
+            self.executor = futurist.SynchronousExecutor()
 
     def _venv_directory_for(self, instance):
         return sh.joinpths(instance.get_option('component_dir'), 'venv')
@@ -155,7 +162,23 @@ class VenvDependencyHandler(base.DependencyHandler):
             if self._PREQ_PKGS:
                 self._install_into_venv(instance, self._PREQ_PKGS)
 
-    def package_instance(self, instance):
+    def package_instances(self, instances):
+        if not instances:
+            return []
+        LOG.info("Packaging %s instances using %s jobs",
+                 len(instances), self.jobs)
+        fs = []
+        all_requires_what = self._filter_download_requires()
+        for instance in instances:
+            fs.append(self.executor.submit(self._package_instance,
+                                           instance, all_requires_what))
+        futures.wait(fs)
+        results = []
+        for f in fs:
+            results.append(f.result())
+        return results
+
+    def _package_instance(self, instance, all_requires_what):
         if not self._is_buildable(instance):
             # Skip things that aren't python...
             LOG.warn("Skipping building %s (not python)",
@@ -172,7 +195,7 @@ class VenvDependencyHandler(base.DependencyHandler):
                     extra_reqs.append(pip_helper.create_requirement(p))
             return extra_reqs
 
-        all_requires_what = self._filter_download_requires()
+        LOG.info("Packaging %s", colorizer.quote(instance.name))
         all_requires_mapping = {}
         for req in all_requires_what:
             if isinstance(req, six.string_types):
@@ -210,10 +233,11 @@ class VenvDependencyHandler(base.DependencyHandler):
             if req.key in all_requires_mapping:
                 req = all_requires_mapping[req.key]
             requires_what.append(req)
-        utils.time_it(functools.partial(_on_finish, "Dependency installation"),
+        what = 'installation for %s' % colorizer.quote(instance.name)
+        utils.time_it(functools.partial(_on_finish, "Dependency %s" % what),
                       self._install_into_venv, instance,
                       requires_what)
-        utils.time_it(functools.partial(_on_finish, "Instance installation"),
+        utils.time_it(functools.partial(_on_finish, "Instance %s" % what),
                       self._install_into_venv, instance,
                       [instance.get_option('app_dir')])
 

anvil/utils.py

@@ -278,6 +278,7 @@ def retry(attempts, delay, func, *args, **kwargs):
             return func(*args, **kwargs)
         except Exception:
             failures.append(sys.exc_info())
+            LOG.exception("Calling '%s' failed", func_name)
             if attempt < max_attempts and delay > 0:
                 LOG.info("Waiting %s seconds before calling '%s' again",
                          delay, func_name)

pylintrc

@@ -62,7 +62,7 @@ load-plugins=
 # W0622: Redefining id is fine.
 # W0702: No exception type(s) specified
 # W0703: Catching "Exception" is fine if you need it
-disable=I0011,I0012,I0013,C0111,E0213,E0611,E1002,E1101,E1103,F0401,R0201,R0801,R0912,R0914,R0921,R0922,W0141,W0142,W0212,W0223,W0232,W0401,W0511,W0603,W0613,W0622,W0702,W0703
+disable=I0011,I0012,I0013,C0111,E0213,E0611,E1002,E1101,E1103,F0401,R0201,R0801,R0912,R0914,R0921,R0922,W0141,W0142,W0212,W0223,W0232,W0401,W0511,W0603,W0613,W0622,W0702,W0703,C0325,C0330,W1401
 
 [REPORTS]
 

requirements.txt

@@ -14,4 +14,6 @@ PyYAML>=3.1.0
 six>=1.4.1
 termcolor
 argparse
+futurist>=0.1.1
+futures
 jsonpatch>=1.1

test-requirements.txt

@@ -1,5 +1,5 @@
-pylint==0.25.2
+pylint==1.4.1
-hacking>=0.8.0,<0.9
+hacking>=0.10.0,<0.11
 mock>=1.0
 nose
 testtools>=0.9.34

tox.ini

@@ -39,7 +39,7 @@ commands = bash -c "find {toxinidir}          \
 commands = {posargs}
 
 [flake8]
-ignore = H102,H302,E501
+ignore = H102,H302,E501,H405,H236,F812,H104,E265
 builtins = _
 exclude = .venv,.tox,dist,doc,*egg,.git,build
 
@@ -49,4 +49,3 @@ detailed-errors = 1
 
 [testenv:docs]
 commands = python setup.py build_sphinx
-