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Message #00019
[Merge] lp:~arsenal-devel/arsenal/python-launchpadlib-toolkit into lp:arsenal
Brian Murray has proposed merging lp:~arsenal-devel/arsenal/python-launchpadlib-toolkit into lp:arsenal.
Requested reviews:
arsenal-devel (arsenal-devel)
example-ls-series.py wasn't working for me so I fixed it and as I was adding in load_distro_series I noticed some more die statements in LaunchpadService.py so I fixed those.
--
https://code.launchpad.net/~arsenal-devel/arsenal/python-launchpadlib-toolkit/+merge/21182
Your team arsenal-devel is subscribed to branch lp:arsenal.
=== added file 'AUTHORS'
--- AUTHORS 1970-01-01 00:00:00 +0000
+++ AUTHORS 2010-03-11 21:01:14 +0000
@@ -0,0 +1,5 @@
+Maintainers:
+ Bryce Harrington <bryce@xxxxxxxxxxxxx>
+
+Contributions, ideas, and inspiration from:
+ Markus Korn <thekorn@xxxxxx>
=== renamed file 'AUTHORS' => 'AUTHORS.moved'
=== added file 'COPYING'
--- COPYING 1970-01-01 00:00:00 +0000
+++ COPYING 2010-03-11 21:01:14 +0000
@@ -0,0 +1,341 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
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=== added file 'COPYING.LIB'
--- COPYING.LIB 1970-01-01 00:00:00 +0000
+++ COPYING.LIB 2010-03-11 21:01:14 +0000
@@ -0,0 +1,510 @@
+
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+ License as published by the Free Software Foundation; either
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+
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ Lesser General Public License for more details.
+
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+ library `Frob' (a library for tweaking knobs) written by James
+ Random Hacker.
+
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+ Ty Coon, President of Vice
+
+That's all there is to it!
+
+
=== added file 'NEWS'
--- NEWS 1970-01-01 00:00:00 +0000
+++ NEWS 2010-03-11 21:01:14 +0000
@@ -0,0 +1,26 @@
+
+
+Sept 29, 2009 - Version 0.1
+===========================
+This is a first draft of the python-launchpadlib-toolkit package. The
+principle motivation is the widespread duplication of effort in
+implementing credential handling across a vast array of launchpadlib
+applications.
+
+At Plumbers' it seems there is strong desire for more collaboration
+between LPL scripters. Since pretty much every LPL script needs to do
+credentials management, standardizing this into a sharable library seems
+like a logical first step.
+
+There's so much similarity from one credentials implementation to
+another that this probably could have started from anyone's code. I
+opted to start with my own implementation from Arsenal since that's the
+one I'm most familiar with. I've integrated some good implementation
+ideas from Markus Korn's work on ilaunchpad-shell and ubuntu-dev-tools,
+such as the nifty DebugStdOut trickery, the use of environment variables
+for configuration, and the essense of his HTTPError exception handling.
+
+One of my major design goals was to keep it simple, so there's been
+several ideas I've left out simply on the grounds that I wasn't sure if
+they'd be that useful in real-world cases. Stuff can always be added
+later as it's proven necessary!
=== added file 'README'
--- README 1970-01-01 00:00:00 +0000
+++ README 2010-03-11 21:01:14 +0000
@@ -0,0 +1,116 @@
+LaunchpadLib Toolkit
+====================
+lpltoolkit is a set of classes for interacting with the Launchpad
+service API library. It takes care of certain common chores such as
+obtaining and managing login credentials.
+
+By factoring this common code out of individual launchpadlib projects,
+it makes them more concise and more compatible with one another.
+
+
+Basic Usage
+===========
+For most purposes, simply create the LaunchpadService object, which will
+attend to the credentials automatically. Then retrieve a project object
+(such as "ubuntu") and from there you can use all the regular Launchpad
+API calls. In other words:
+
+ import lpltoolkit
+
+ lp = lpltoolkit.LaunchpadService()
+ prj = lp.load_project("ubuntu")
+
+
+See example-ls-series.py for a complete working example. Also try
+running it with LPDEBUG turned on to see how to get debug info:
+
+ $ ./example-ls-series.py
+
+ $ LPDEBUG=1 ./example-ls-series.py
+
+For more elaborate real-world scripts, refer to the Arsenal project at:
+
+ http://launchpad.net/arsenal
+
+
+Environment Variables
+=====================
+Configuration of the LaunchpadService behavior can be done via
+environmental variables. This is done principly to make it easy to
+debug issues without needing to tweak source code.
+
+The following environment variables are supported:
+
+ LPDEBUG Prints extra debugging messages to stderr if defined.
+ If set to a numerical argument, it sets the httpdlib2
+ debuglevel to that value; the http debug output will be
+ filtered to redact your oauth token and signature, so
+ you can attach debug info to public bugs without
+ revealing anything sensitive.
+
+ LPSTAGING Use the staging service root rather than the live (edge)
+ service. This allows testing of your script without
+ risking actual changes to the official Launchpad.
+
+ LPCONFIG Use this directory path for configuration files, rather
+ than the default of ~/.config/<consumer>. The directory
+ will be created if it does not already exist.
+
+ LPCACHE Use this directory path for cache files (such as credentials),
+ rather than the default of ~/.cache/<consumer>. The
+ directory will be created if it does not already exist.
+
+
+API - LaunchpadService
+======================
+
+lp = LaunchpadService([config_path], [cache_path], [consumer])
+
+ Creates the Launchpad service object and retrieve credentials from
+ Launchpad. LPSTAGING, LPCONFIG, and LPCACHE must be specified
+ prior to instantiating the LaunchpadService object in order to have
+ any effect.
+
+ config_path and cache_path allow the calling script to define the
+ default paths if not specified by the environment variables.
+
+ On any unrecoverable error an exception is thrown.
+
+lp.load_project(project)
+
+ Loads the named project (such as "ubuntu" distro), returning its
+ launchpadapi object.
+
+lp.reset()
+
+ Reloads the credentials and project (if any is specified). This is
+ handy for recovering from Launchpad out-of-service or other such
+ transient errors.
+
+lp.name: The credentialed consumer name (default: lpltoolkit)
+lp.launchpad: The launchpadlib launchpad object
+lp.project: The loaded Launchpad project (default: None)
+
+
+API - Debug
+===========
+dbg(msg), err(msg), die(msg)
+
+ Convenience routines for printing error and debug messages to
+ stderr. dbg() only prints if LPDEBUG is defined.
+
+StdOut, DebugStdOut
+
+ STDOUT overloads for debug output filtering. Set sys.stdout to
+ DebugStdOut to filter out oauth token and signature details.
+
+
+Wishlist
+========
+* Get this package into Universe, then into Main
+* Add a framework for storing config elements beyond just credentials
+* Integrate into existing launchpadlib scripts/applications
+* Wrapper classes for Bugs, SourcePackages, etc.
+* Strengthen the fault handling, provide better diagnostics, and be more
+ robust against Launchpad service failures
+
=== renamed file 'README' => 'README.moved'
=== added directory 'debian'
=== renamed directory 'debian' => 'debian.moved'
=== added file 'debian/changelog'
--- debian/changelog 1970-01-01 00:00:00 +0000
+++ debian/changelog 2010-03-11 21:01:14 +0000
@@ -0,0 +1,21 @@
+python-launchpadlib-toolkit (UNRELEASED) karmic; urgency=low
+
+ * Fix parameter name in debug routine.
+
+ -- Bryce Harrington <bryce@xxxxxxxxxx> Thu, 15 Oct 2009 18:51:22 -0700
+
+python-launchpadlib-toolkit (0.2) karmic; urgency=low
+
+ * Add handling of socket.error exceptions, which can be triggered when
+ the Launchpad service is unreachable (such as from a busted router).
+
+ -- Bryce Harrington <bryce@xxxxxxxxxx> Tue, 06 Oct 2009 11:19:08 -0700
+
+python-launchpadlib-toolkit (0.1) karmic; urgency=low
+
+ * New revision, split off from arsenal, with ideas brazenly thieved from
+ Markus Korn's launchpadlib-shell.
+ * debian packaging borrowed/adapted from python-launchpad-bugs
+
+ -- Bryce Harrington <bryce@xxxxxxxxxx> Tue, 29 Sep 2009 16:16:09 -0700
+
=== added file 'debian/compat'
--- debian/compat 1970-01-01 00:00:00 +0000
+++ debian/compat 2010-03-11 21:01:14 +0000
@@ -0,0 +1,1 @@
+5
=== added file 'debian/control'
--- debian/control 1970-01-01 00:00:00 +0000
+++ debian/control 2010-03-11 21:01:14 +0000
@@ -0,0 +1,20 @@
+Source: python-launchpadlib-toolkit
+Section: python
+Priority: extra
+Maintainer: Arsenal Developers <arsenal-devel@xxxxxxxxxxxxxxxxxxx>
+Build-Depends: cdbs (>= 0.4.43), debhelper (>= 5), python-central (>= 0.5), python-all-dev (>= 2.5)
+Standards-Version: 3.8.3
+XS-Vcs-Bzr: https://code.launchpad.net/~arsenal-devel/python-launchpadlib-toolkit/main
+XS-Python-Version: all
+
+Package: python-launchpadlib-toolkit
+Section: python
+Architecture: all
+Depends: ${python:Depends}, ${misc:Depends}, python (>= 2.5), python-launchpadlib
+XB-Python-Version: ${python:Versions}
+Description: convenience library for launchpadlib
+ Classes to manage credentials and access bug information
+ in Launchpad using the Launchpad API.
+ .
+ https://launchpad.net/arsenal/
+
=== added file 'debian/copyright'
--- debian/copyright 1970-01-01 00:00:00 +0000
+++ debian/copyright 2010-03-11 21:01:14 +0000
@@ -0,0 +1,34 @@
+This package was debianized by Bryce Harrington <bryce@xxxxxxxxxxxxx> on
+Mon Sep 28 23:54:18 PDT 2009
+
+It was downloaded from
+#TBD
+
+Upstream Author:
+ Bryce Harrington <bryce@xxxxxxxxxxxxx>
+
+Copyright:
+ # Written by Bryce Harrington
+ # (C) Canonical, Ltd. Licensed under the GPL
+
+License:
+
+ This package is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This package is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this package; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+On Debian systems, the complete text of the GNU General
+Public License can be found in `/usr/share/common-licenses/GPL'.
+
+The Debian packaging is (C) 2006, Daniel Holbach <daniel.holbach@xxxxxxxxxx> and
+is licensed under the GPL, see above.
=== added file 'debian/docs'
--- debian/docs 1970-01-01 00:00:00 +0000
+++ debian/docs 2010-03-11 21:01:14 +0000
@@ -0,0 +1,1 @@
+README
=== added file 'debian/pycompat'
--- debian/pycompat 1970-01-01 00:00:00 +0000
+++ debian/pycompat 2010-03-11 21:01:14 +0000
@@ -0,0 +1,1 @@
+>= 2.4
=== added file 'debian/rules'
--- debian/rules 1970-01-01 00:00:00 +0000
+++ debian/rules 2010-03-11 21:01:14 +0000
@@ -0,0 +1,13 @@
+#!/usr/bin/make -f
+
+DEB_PYTHON_SYSTEM := pycentral
+
+include /usr/share/cdbs/1/rules/debhelper.mk
+include /usr/share/cdbs/1/class/python-distutils.mk
+
+DEB_BUILD_PROG:=debuild --preserve-envvar PATH --preserve-envvar CCACHE_DIR -us -uc $(DEB_BUILD_PROG_OPTS)
+arch-build::
+ rm -rf debian/arch-build
+ mkdir -p debian/arch-build/$(DEB_SOURCE_PACKAGE)-$(DEB_VERSION)
+ tar -c --exclude=arch-build --no-recursion -f - `bzr inventory` | (cd debian/arch-build/$(DEB_SOURCE_PACKAGE)-$(DEB_VERSION);tar xf -)
+ (cd debian/arch-build/$(DEB_SOURCE_PACKAGE)-$(DEB_VERSION) && $(DEB_BUILD_PROG))
=== added file 'example-ls-series.py'
--- example-ls-series.py 1970-01-01 00:00:00 +0000
+++ example-ls-series.py 2010-03-11 21:01:14 +0000
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+from lpltoolkit import LaunchpadService
+
+lp = LaunchpadService()
+d = lp.load_project("ubuntu")
+
+next_milestone = None
+for series in d.series:
+ print "%-10s %-20s %-25s" % (series.name,
+ series.status,
+ series.date_created)
+ if series.status == "Active Development" or series.status == "Pre-release Freeze":
+ for milestone in series.active_milestones:
+ print "%10s %-20s %-25s" % ("-->", milestone.name, milestone.date_targeted)
+ if not next_milestone or milestone.date_targeted < next_milestone.date_targeted:
+ next_milestone = milestone
+
+print
+print "The next milestone is ", next_milestone.name
=== added directory 'lpltoolkit'
=== added file 'lpltoolkit/LaunchpadService.py'
--- lpltoolkit/LaunchpadService.py 1970-01-01 00:00:00 +0000
+++ lpltoolkit/LaunchpadService.py 2010-03-11 21:01:14 +0000
@@ -0,0 +1,126 @@
+# High level interface to Launchpad API to manage credentials
+# Derived from bits of ubuntutools in ubuntu-dev-tools and Arsenal
+
+import os, sys, socket
+import httplib2
+
+from launchpadlib.credentials import Credentials
+from launchpadlib.launchpad import Launchpad, STAGING_SERVICE_ROOT, EDGE_SERVICE_ROOT
+from launchpadlib.errors import HTTPError
+
+from lpltoolkit.debug import *
+
+class LaunchpadService:
+ ''' High level interface to the launchpad service API '''
+
+ def __init__(self, config_path=None, cache_path=None, consumer='lpltoolkit'):
+ ''' Construct Launchpad object, including obtaining launchpad credentials '''
+ self._project_name = None
+ self._configdir = None
+ self._cachedir = None
+ self._service_root = EDGE_SERVICE_ROOT
+ self.name = consumer
+ self.project = None
+ self.launchpad = None
+
+ ''' Debugging '''
+ if "LPDEBUG" in os.environ:
+ httplib2.debuglevel = os.getenv("LPDEBUG", None)
+ sys.stdout = DebugStdOut()
+
+ ''' Service root '''
+ if "LPSTAGING" in os.environ:
+ self._service_root = STAGING_SERVICE_ROOT
+ elif "LPEDGE" in os.environ:
+ self._service_root = EDGE_SERVICE_ROOT
+
+ home = os.path.expanduser('~')
+
+ ''' Config dir '''
+ if "LPCONFIG" in os.environ:
+ self._confdir = os.getenv("LPCONFIG", None)
+ elif config_path:
+ self._confdir = config_path
+ else:
+ self._confdir = os.path.join(home, '.config', self.name)
+ if not os.path.exists(self._confdir):
+ dbg("Creating config directory %s" %(self._confdir))
+ os.makedirs(self._confdir)
+ assert os.path.exists(self._confdir)
+
+ ''' Cache dir '''
+ if "LPCACHE" in os.environ:
+ self._cachedir = os.getenv("LPCACHE", None)
+ elif cache_path:
+ self._cachedir = cache_path
+ else:
+ self._cachedir = os.path.join(home, '.cache', self.name)
+ if not os.path.exists(self._cachedir):
+ dbg("Creating cache directory %s" %(self._cachedir))
+ os.makedirs(self._cachedir,0700)
+ assert os.path.exists(self._cachedir)
+
+ try:
+ self._get_creds()
+ except:
+ die("Could not access Launchpad.")
+ return None
+
+ def _get_creds(self):
+ ''' Credentials '''
+ retrieve_credentials = False
+ self._credentials_file = os.path.join(self._confdir, "lp-credentials.txt")
+ if not os.path.exists(self._credentials_file):
+ retrieve_credentials = True
+ else:
+ try:
+ credentials = Credentials()
+ dbg("Loading credentials from %s" %(self._credentials_file))
+ credentials.load(open(self._credentials_file))
+ self.launchpad = Launchpad(credentials, self._service_root, self._cachedir)
+ except socket.error:
+ excType, excValue, excTraceback = sys.exc_info()
+ dbg(" %s\n" %(excValue.response))
+ dbg(" %s\n" %(excValue.content))
+ die("Launchpad service connection timed out")
+
+ except HTTPError:
+ # Can I use e.code here?
+ excType, excValue, excTraceback = sys.exc_info()
+ err("Failed to retrieve credentials from Launchpad")
+ dbg(" %s\n" %(excValue.response))
+ dbg(" %s\n" %(excValue.content))
+ retrieve_credentials = True
+
+ if retrieve_credentials:
+ dbg("Retrieving token and login")
+ try:
+ self.launchpad = Launchpad.get_token_and_login(self.name, self._service_root, self._cachedir)
+ credfd = open(self._credentials_file, "w")
+ os.chmod(self._credentials_file, 0600)
+ dbg("Saving retrieved credentials to %s" %(self._credentials_file))
+ self.launchpad.credentials.save(credfd)
+ credfd.close()
+ except:
+ die("Could not set up Launchpad")
+
+ return True
+
+ def reset(self):
+ self._get_creds()
+
+ if self._project_name:
+ dbg("Reloading project %s" %(self._project_name))
+ self.load_project(self._project_name)
+
+ def load_project(self, project):
+ try:
+ if self._service_root == STAGING_SERVICE_ROOT:
+ self.project = self.launchpad.load("https://api.staging.launchpad.net/beta/" + project)
+ else:
+ self.project = self.launchpad.load("https://api.edge.launchpad.net/beta/" + project)
+ except:
+ err("Exception cast loading project %s" % (project))
+ self.project = None
+
+ return self.project
=== added file 'lpltoolkit/__init__.py'
--- lpltoolkit/__init__.py 1970-01-01 00:00:00 +0000
+++ lpltoolkit/__init__.py 2010-03-11 21:01:14 +0000
@@ -0,0 +1,3 @@
+from lpltoolkit.LaunchpadService import LaunchpadService
+from lpltoolkit.debug import dbg, err, die, StdOut, DebugStdOut, dump_launchpad_object
+
=== added file 'lpltoolkit/debug.py'
--- lpltoolkit/debug.py 1970-01-01 00:00:00 +0000
+++ lpltoolkit/debug.py 2010-03-11 21:01:14 +0000
@@ -0,0 +1,44 @@
+# Utility routines and classes for debugging info
+
+# (C) Copyright 2009, Markus Korn <thekorn@xxxxxx>
+# (C) Copyright 2009, Bryce Harrington <bryce@xxxxxxxxxxxxx>
+
+import re, os, sys
+
+def dbg(msg):
+ if "LPDEBUG" in os.environ:
+ sys.stderr.write("%s\n" %(msg))
+
+def err(msg):
+ sys.stderr.write("Error: %s\n" %(msg))
+
+def die(msg):
+ sys.stderr.write("Fatal: %s\n" %(msg))
+ sys.exit(1)
+
+StdOut = sys.stdout
+class DebugStdOut(object):
+ '''
+ Debug version of STDOUT to redact out the oauth credentials
+ so that if the debug output is posted to a bug, it will not include
+ this sensitive info.
+ '''
+
+ RE_OAUTH_TOKEN = re.compile(r"oauth_token=\"([^\"]{2})[^\"]*")
+ RE_OAUTH_SIGNATURE = re.compile(r"oauth_signature=\"([^\"]{3})[^\"]*")
+
+ def write(self, txt):
+ txt = DebugStdOut.RE_OAUTH_SIGNATURE.sub(r"""oauth_signature="\1YYYYYYY""", txt)
+ txt = DebugStdOut.RE_OAUTH_TOKEN.sub(r"""oauth_token="\1XXXXXXXX""", txt)
+ StdOut.write(txt)
+
+ def __getattr__(self, name):
+ return getattr(StdOut, name)
+
+def dump_launchpad_object(i):
+ print repr(i)
+ print " attr: ", sorted(i.lp_attributes)
+ print " ops: ", sorted(i.lp_operations)
+ print " coll: ", sorted(i.lp_collections)
+ print " entr: ", sorted(i.lp_entries)
+ print
=== added file 'setup.py'
--- setup.py 1970-01-01 00:00:00 +0000
+++ setup.py 2010-03-11 21:01:14 +0000
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+
+# Copyright (C) Canonical, Ltd. Licensed under the GPL
+
+from distutils.core import setup
+import os
+import re
+
+# look/set what version we have
+changelog = "debian/changelog"
+if os.path.exists(changelog):
+ head=open(changelog).readline()
+ match = re.compile(".*\((.*)\).*").match(head)
+ if match:
+ version = match.group(1)
+
+setup(name = 'python-launchpadlib-toolkit',
+ version = version,
+ packages = ['lpltoolkit'],
+)
=== renamed file 'setup.py' => 'setup.py.moved'
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