[Python-modules-commits] [python-aptly] 01/03: import python-aptly_0.7.7.orig.tar.gz

Ondřej Nový onovy at moszumanska.debian.org
Mon Aug 8 12:09:39 UTC 2016


This is an automated email from the git hooks/post-receive script.

onovy pushed a commit to branch master
in repository python-aptly.

commit 04ac733648ea10678bfa4902c3d7d23af06b3622
Author: Ondřej Nový <onovy at debian.org>
Date:   Mon Aug 8 14:07:00 2016 +0200

    import python-aptly_0.7.7.orig.tar.gz
---
 .gitignore                      |   5 +
 LICENSE                         | 339 +++++++++++++++++++++++++++++++++
 README.rst                      | 216 +++++++++++++++++++++
 aptly/__init__.py               |   0
 aptly/client.py                 |  91 +++++++++
 aptly/exceptions.py             |  11 ++
 aptly/publisher/__init__.py     | 405 ++++++++++++++++++++++++++++++++++++++++
 aptly/publisher/__main__.py     | 245 ++++++++++++++++++++++++
 doc/aptly-publisher.png         | Bin 0 -> 53388 bytes
 doc/examples/ubuntu_mirror.yaml |  54 ++++++
 doc/man/aptly-publisher.1       |  75 ++++++++
 doc/publisher_diff_example.png  | Bin 0 -> 30944 bytes
 setup.py                        |  35 ++++
 13 files changed, 1476 insertions(+)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6cf9b64
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+*.swp
+*.o
+*.pyc
+.DS_Store
+.ropeproject
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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diff --git a/README.rst b/README.rst
new file mode 100644
index 0000000..e4f6985
--- /dev/null
+++ b/README.rst
@@ -0,0 +1,216 @@
+============
+python-aptly
+============
+
+Aptly REST API client and useful tooling
+
+Publisher
+=========
+
+Publisher is tooling for easier maintenance of complex repository management
+workflows.
+
+This is how workflow can look like and what publisher can do for you:
+
+.. image:: ./doc/aptly-publisher.png
+    :align: center
+
+Features
+--------
+
+- create or update publish from latest snapshots
+
+  - it takes configuration in yaml format which defines what to publish and
+    how
+  - expected snapshot format is ``<name>-<timestamp>``
+
+- promote publish
+
+  - use source publish snapshots to create or update another publish (eg.
+    testing -> stable)
+
+- cleanup unused snapshots
+
+Create or update publish
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+First create configuration file where you define Aptly repositories, mirrors
+and target distributions for publishing.
+
+.. code-block:: yaml
+
+    mirror:
+      # Ubuntu upstream repository
+      trusty-main:
+        # Base for our main component
+        component: main
+        distributions:
+          - nightly/trusty
+      # Mirrored 3rd party repository
+      aptly:
+        # Merge into main component
+        component: main
+        distributions:
+          - nightly/trusty
+
+    repo:
+      # Some repository with custom software
+      cloudlab:
+        # Publish as component cloudlab
+        component: cloudlab
+        distributions:
+          # We want to publish our packages (that can't break anything for
+          # sure) immediately to both nightly and testing repositories
+          - nightly/trusty
+          - testing/trusty
+
+Configuration above will create two publishes from latest snapshots of
+defined repositories and mirrors:
+
+- ``nightly/trusty`` with component cloudlab and main
+
+  - creates snapshot ``_main-<timestamp>`` by merging snapshots
+    ``aptly-<timestamp>`` and ``trusty-main-<timestamp>``)
+
+- ``testing/trusty`` with component cloudlab, made of repository cloudlab
+
+It expects that snapshots are already created (by mirror syncing script or by
+CI when new package is built) so it does following:
+
+- find latest snapshot (by creation date) for each defined mirror and
+  repository
+
+  - snapshots are recognized by name (eg. ``cloudlab-<timestamp>``,
+    ``trusty-main-<timestamp>``)
+
+- create new snapshot by merging snapshots with same publish component
+
+  - eg. create ``_main-<timestamp>`` from latest ``trusty-main-<timestamp>``
+    and ``aptly-<timestamp>`` snapshots
+  - merged snapshots are prefixed by ``_`` to avoid collisions with other
+    snapshots
+  - first it checks if merged snapshots already exists and if so, it will skip
+    creation of duplicated snapshot. So it's tries to be fully idempotent.
+
+- create or update publish or publishes as defined in configuration
+
+It can be executed like this:
+
+::
+
+  aptly-publisher -c config.yaml -v --url http://localhost:8080 publish
+
+Promote publish
+~~~~~~~~~~~~~~~
+
+Let's assume you have following prefixes and workflow:
+
+- nightly
+
+  - created by `publish` action when there's new snapshot or synced mirror
+  - packages are always up to date
+
+- testing
+
+  - freezed repository for testing and stabilization
+
+- stable
+
+  - well tested package versions
+  - well controlled update process
+
+There can be more publishes under prefix, eg. ``nightly/trusty``,
+``nightly/vivid``
+
+Then you need to switch published snapshots from one publish to another one.
+
+::
+
+  aptly-publisher -v --url http://localhost:8080  \
+  --source nightly/trusty --target testing/trusty \
+  publish
+
+You can also specify list of components. When you have separate components for
+your packages (eg. cloudlab) and security (mirror of trusty security
+repository), you may need to release them faster.
+
+::
+
+  aptly-publisher -v --url http://localhost:8080  \
+  --source nightly/trusty --target testing/trusty \
+  --components cloudlab security -- publish
+
+Finally you are also able to promote selected packages, eg.
+
+::
+
+  aptly-publisher -v --url http://localhost:8080  \
+  --source nightly/trusty --target testing/trusty \
+  --packages python-aptly aptly -- publish
+
+Show differences between publishes
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can see differences between publishes with following command:
+
+::
+
+  aptly-publisher -v --url http://localhost:8080  \
+  --source nightly/trusty --target testing/trusty \
+  publish --diff
+
+Example output can look like this:
+
+.. image:: ./doc/publisher_diff_example.png
+    :align: center
+
+Cleanup unused snapshots
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+When you are creating snapshots regularly, you need to delete old ones that
+are not used by any publish. It's wise to call such action every time when
+publish is updated (eg. nightly).
+
+::
+
+  aptly-publisher -v --url http://localhost:8080 cleanup
+
+Installation
+============
+
+You can install directly using from local checkout or from pip:
+
+::
+
+  python setup.py install
+  pip install python-aptly
+
+
+Or better build Debian package with eg.:
+
+::
+
+  dpkg-buildpackage -uc -us
+
+Read more
+=========
+
+For usage informations, see ``aptly-publisher --help`` or man page.
+
+::
+
+  man man/aptly-publisher.1
+
+Also see ``doc/examples`` directory.
+
+For examples of jenkins jobs, have a look at `tcpcloud/jenkins-jobs <https://github.com/tcpcloud/jenkins-jobs>`_ repository.
+
+Known issues
+============
+
+- determine source snapshots correctly
+  (`#271 <https://github.com/smira/aptly/issues/271>`_)
+- cleanup merged snapshots before cleaning up source ones
+
+  - before that it's needed to run cleanup action multiple times to get all
+    unused snapshots cleaned
diff --git a/aptly/__init__.py b/aptly/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/aptly/client.py b/aptly/client.py
new file mode 100644
index 0000000..71952ff
--- /dev/null
+++ b/aptly/client.py
@@ -0,0 +1,91 @@
+# -*- coding: utf-8 -*-
+
+import requests
+import json
+import logging
+from aptly.exceptions import AptlyException
+
+lg = logging.getLogger(__name__)
+
+
+class Aptly(object):
+    def __init__(self, url, auth=None, timeout=300, dry=False):
+        self.url = '%s%s' % (url, '/api')
+        self.timeout = timeout
+        self.dry = dry
+
+        self.session = requests.Session()
+        if auth is not None:
+            self.session.auth = auth
+        self.session.headers.update({
+            'Accept': 'application/json',
+            'Content-type': 'application/json',
+        })
+        self.api_version = self.get_version()
+
+    def get_version(self):
+        return self.do_get('/version')["Version"]
+
+    def _process_result(self, res):
+        if res.status_code < 200 or res.status_code >= 300:
+            raise AptlyException(
+                res,
+                "Something went wrong: %s (%s)" % (res.reason, res.status_code)
+            )
+        try:
+            return res.json()
+        except ValueError:
+            return res.text
+
+    def do_get(self, uri, kwargs=None, timeout=None):
+        url = '%s%s' % (self.url, uri)
+        lg.debug("GET %s, args=%s" % (url, kwargs))
+        res = self.session.get(
+            url,
+            timeout=timeout or self.timeout,
+            params=kwargs,
+        )
+        return self._process_result(res)
+
+    def do_post(self, uri, data, timeout=None):
+        data_json = json.dumps(data)
+        url = '%s%s' % (self.url, uri)
+        lg.debug("POST %s, data=%s" % (url, data_json))
+
+        if self.dry:
+            return
+
+        res = self.session.post(
+            url,
+            timeout=timeout or self.timeout,
+            data=data_json,
+        )
+        return self._process_result(res)
+
+    def do_delete(self, uri, timeout=None):
+        url = '%s%s' % (self.url, uri)
+        lg.debug("DELETE %s" % url)
+
+        if self.dry:
+            return
+
+        res = self.session.delete(
+            url,
+            timeout=timeout or self.timeout,
+        )
+        return self._process_result(res)
+
+    def do_put(self, uri, data, timeout=None):
+        data_json = json.dumps(data)
+        url = '%s%s' % (self.url, uri)
+        lg.debug("PUT %s, data=%s" % (url, data_json))
+
+        if self.dry:
+            return
+
+        res = self.session.put(
+            url,
+            timeout=timeout or self.timeout,
+            data=data_json,
+        )
+        return self._process_result(res)
diff --git a/aptly/exceptions.py b/aptly/exceptions.py
new file mode 100644
index 0000000..87b3342
--- /dev/null
+++ b/aptly/exceptions.py
@@ -0,0 +1,11 @@
+# -*- coding: utf-8 -*-
+
+
+class AptlyException(Exception):
+    def __init__(self, res, msg):
+        Exception.__init__(self, msg)
+        self.res = res
+
+
+class NoSuchPublish(Exception):
+    pass
diff --git a/aptly/publisher/__init__.py b/aptly/publisher/__init__.py
new file mode 100644
index 0000000..dc3dd04
--- /dev/null
+++ b/aptly/publisher/__init__.py
@@ -0,0 +1,405 @@
+# -*- coding: utf-8 -*-
+
+import time
+import re
+import logging
+from aptly.exceptions import AptlyException, NoSuchPublish
+
+lg = logging.getLogger(__name__)
+
+
+class PublishManager(object):
+    """
+    Manage multiple publishes
+    """
+    def __init__(self, client):
+        self.client = client
+        self._publishes = {}
+        self.timestamp = int(time.time())
+
+    def publish(self, distribution):
+        """
+        Get or create publish
+        """
+        try:
+            return self._publishes[distribution]
+        except KeyError:
+            self._publishes[distribution] = Publish(self.client, distribution, timestamp=self.timestamp)
+            return self._publishes[distribution]
+
+    def add(self, snapshot, distributions, component='main'):
+        """ Add mirror or repo to publish """
+        for dist in distributions:
+            self.publish(dist).add(snapshot, component)
+
+    def _publish_match(self, publish, names=False):
+        """
+        Check if publish name matches list of names or regex patterns
+        """
+        if names:
+            for name in names:
+                if isinstance(name, re._pattern_type):
+                    if re.match(name, publish.name):
+                        return True
+                else:
+                    if publish in [name, './%s' % name]:
+                        return True
+            return False
+        else:
+            return True
+
+    def do_publish(self, *args, **kwargs):
+        try:
+            publish_names = kwargs.pop('names')
+        except KeyError:
+            publish_names = None
+
+        for publish in self._publishes.itervalues():
+            if self._publish_match(publish.name, publish_names):
+                publish.do_publish(*args, **kwargs)
+            else:
+                lg.info("Skipping publish %s not matching publish names" % publish.name)
+
+    def list_uniq(self, seq):
+        keys = {}
+        for e in seq:
+            keys[e] = 1
+        return keys.keys()
+
+    def cleanup_snapshots(self):
+        snapshots = self.client.do_get('/snapshots', {'sort': 'time'})
+        exclude = []
+
+        # Add currently published snapshots into exclude list
+        publishes = self.client.do_get('/publish')
+        for publish in publishes:
+            exclude.extend(
+                [x['Name'] for x in publish['Sources']]
+            )
+
+        # Add last snapshots into exclude list
+        # TODO: ignore snapshots that are source for merged snapshots
+        snapshot_latest = []
+        for snapshot in snapshots:
+            base_name = snapshot['Name'].split('-')[0]
+            if base_name not in snapshot_latest:
+                snapshot_latest.append(base_name)
+                if snapshot['Name'] not in exclude:
+                    lg.debug("Not deleting latest snapshot %s" % snapshot['Name'])
+                    exclude.append(snapshot['Name'])
+
+        exclude = self.list_uniq(exclude)
+
+        for snapshot in snapshots:
+            if snapshot['Name'] not in exclude:
+                lg.info("Deleting snapshot %s" % snapshot['Name'])
+                try:
+                    self.client.do_delete('/snapshots/%s' % snapshot['Name'])
+                except AptlyException as e:
+                    if e.res.status_code == 409:
+                        lg.warning("Snapshot %s is being used, can't delete" % snapshot['Name'])
+                    else:
+                        raise
+
+
+class Publish(object):
+    """
+    Single publish object
+    """
+    def __init__(self, client, distribution, timestamp=None, recreate=False, load=False, merge_prefix='_'):
+        self.client = client
+        self.recreate = recreate
+
+        dist_split = distribution.split('/')
+        self.distribution = dist_split[-1]
+        if dist_split[0] != self.distribution:
+            self.prefix = dist_split[0]
+        else:
+            self.prefix = ''
+
+        self.name = '%s/%s' % (self.prefix or '.', self.distribution)
+
+        if not timestamp:
+            self.timestamp = int(time.time())
+        else:
+            self.timestamp = timestamp
+
+        self.merge_prefix = merge_prefix
+        self.components = {}
+        self.publish_snapshots = []
+
+        if load:
+            # Load information from remote immediately
+            self.load()
+
+    def __eq__(self, other):
+        if not isinstance(other, Publish):
+            return False
+
+        diff, equal = self.compare(other)
+        if not diff:
+            return True
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def compare(self, other, components=[]):
+        """
+        Compare two publishes
+        It expects that other publish is same or older than this one
+
+        Return tuple (diff, equal) of dict {'component': ['snapshot']}
+        """
+        lg.debug("Comparing publish %s and %s" % (self.name, other.name))
+
+        diff, equal = ({}, {})
+
+        for component, snapshots in self.components.iteritems():
+            if component not in other.components:
+                continue
+
+            if component not in other.components.keys():
+                # Component is missing in other
+                diff[component] = snapshots
+                continue
+
+            equal_snapshots = list(set(snapshots).intersection(other.components[component]))
+            if equal_snapshots:
+                lg.debug("Equal snapshots for %s: %s" % (component, equal_snapshots))
+                equal[component] = equal_snapshots
+
+            diff_snapshots = list(set(snapshots).difference(other.components[component]))
+            if diff_snapshots:
+                lg.debug("Different snapshots for %s: %s" % (component, diff_snapshots))
+                diff[component] = diff_snapshots
+
+        return (diff, equal)
+
+    def _get_publish(self):
+        """
+        Find this publish on remote
+        """
+        publishes = self.client.do_get('/publish')
+        for publish in publishes:
+            if publish['Distribution'] == self.distribution and \
+                    publish['Prefix'] == (self.prefix or '.'):
+                return publish
+        raise NoSuchPublish("Publish %s does not exist" % self.name)
+
+    def load(self):
+        """
+        Load publish info from remote
+        """
+        publish = self._get_publish()
+        for source in publish['Sources']:
+            component = source['Component']
+            snapshot = source['Name']
+            self.publish_snapshots.append({
+                'Component': component,
+                'Name': snapshot
+            })
+
+            snapshot_remote = self._find_snapshot(snapshot)
+            for source in self._get_source_snapshots(snapshot_remote, fallback_self=True):
+                self.add(source, component)
+
+    def get_packages(self, component=None, components=[], packages=None):
+        """
+        Return package refs for given components
+        """
+        if component:
+            components = [component]
+
+        package_refs = []
+        for snapshot in self.publish_snapshots:
+            if component and snapshot['Component'] not in components:
+                # We don't want packages for this component
+                continue
+
+            component_refs = self.client.do_get('/snapshots/%s/packages' % snapshot['Name'])
+            if packages:
+                # Filter package names
+                for ref in component_refs:
+                    if self.parse_package_ref(ref)[1] in packages:
+                        package_refs.append(ref)
+            else:
+                package_refs.extend(component_refs)
+
+        return package_refs
+
+    def parse_package_ref(self, ref):
+        """
+        Return tuple of architecture, package_name, version, id
+        """
+        if not ref:
+            return None
+        parsed = re.match('(.*)\ (.*)\ (.*)\ (.*)', ref)
+        return parsed.groups()
+
+    def add(self, snapshot, component='main'):
+        """
+        Add snapshot of component to publish
+        """
+        try:
+            self.components[component].append(snapshot)
+        except KeyError:
+            self.components[component] = [snapshot]
+
+    def _find_snapshot(self, name):
+        """
+        Find snapshot on remote by name or regular expression
+        """
+        remote_snapshots = self.client.do_get('/snapshots', {'sort': 'time'})
+        for remote in reversed(remote_snapshots):
+            if remote["Name"] == name or \
+                    re.match(name, remote["Name"]):
+                return remote
+        return None
+
+    def _get_source_snapshots(self, snapshot, fallback_self=False):
+        """
+        Get list of source snapshot names of given snapshot
+
+        TODO: we have to decide by description at the moment
+        """
+        if not snapshot:
+            return []
+
+        source_snapshots = re.findall(r"'([\w\d-]+)'", snapshot['Description'])
+        if not source_snapshots and fallback_self:
+            source_snapshots = [snapshot['Name']]
+
+        source_snapshots.sort()
+        return source_snapshots
+
+    def merge_snapshots(self):
+        """
+        Create component snapshots by merging other snapshots of same component
+        """
... 568 lines suppressed ...

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