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Message #00376
[Merge] lp:~webrsk-ideas/keryx/unwrapt into lp:keryx
Senthil Kumar_Webrsk has proposed merging lp:~webrsk-ideas/keryx/unwrapt into lp:keryx.
Requested reviews:
Keryx Admins (keryx-admins)
1.Fixed Gzip existing corrupted file check [Chris found this bug , the corrupted file been downloaded with older version of unwrapt so there is a check required before parsing the packages. Now its been done]
2.Handled error responses for packages file exists and gzip file corrupt[Now the error responses handled using errno]
Tested with lp:keryx/unstable - Revision 37.
--
https://code.launchpad.net/~webrsk-ideas/keryx/unwrapt/+merge/39341
Your team Keryx Development Team is subscribed to branch lp:keryx.
=== added file 'LICENSE'
--- LICENSE 1970-01-01 00:00:00 +0000
+++ LICENSE 2010-10-26 07:01:46 +0000
@@ -0,0 +1,674 @@
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+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program 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 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
=== added file 'README'
--- README 1970-01-01 00:00:00 +0000
+++ README 2010-10-26 07:01:46 +0000
@@ -0,0 +1,23 @@
+Installation
+------------
+
+These instructions are for Ubuntu users.
+
+Clone the repository:
+$ git clone git://github.com/excid3/unwrapt.git
+
+Install the setup utilities:
+$ sudo apt-get install python-virtualenv python-pip
+
+Change into the directory to work:
+$ cd unwrapt/
+
+Setup and enable the virtual environment:
+$ virtualenv --no-site-packages --distribute .
+$ source bin/activate
+
+Install the dependencies:
+$ pip install -r requirements.txt
+
+When you are finished working you can exit the virtual environment:
+$ deactivate
=== added directory 'doc'
=== renamed directory 'doc' => 'doc.moved'
=== added file 'doc/DEFINITIONS'
--- doc/DEFINITIONS 1970-01-01 00:00:00 +0000
+++ doc/DEFINITIONS 2010-10-26 07:01:46 +0000
@@ -0,0 +1,31 @@
+Definition Structure and Rules
+==============================
+
+Each definition must be its own Python module. This means it is stored in the "definitions" folder and must include an __init__.py file containing the definition info and class data structures.
+
+Definition Info
+---------------
+
+Example Definition info implementation:
+
+ info = {"name" : "apt",
+ "author" : "Chris Oliver <excid3@xxxxxxxxx>",
+ "version": "1.0",
+ "class" : "Apt"}
+
+
+Definition Class
+----------------
+
+Example definition class implementation (does nothing):
+
+ from DefinitionBase import DefinitionBase
+
+ class Apt(DefinitionBase):
+ pass
+
+Note that here the class name "Apt" matches the "class" value in the definition info. This is how the DefinitionManager knows which class to import.
+
+You must inherit from DefinitionBase in order to ensure that the default empty functions are created. These are placeholders and behind the scenes tools so that Definitions do not need to fully implement every feature.
+
+It is NOT recommended for definitions to override any of the base class's functions. Each of the functions in DefinitionBase are decorated with @callback. This decorator attempts to call "on_<function name>" of the Definition. These are the methods that should be used when implementing a Definition and they will be given the same parameters as the DefinitionBase function call. See unwrapt/definitions/aptdef for an example implementation.
=== added file 'doc/FLOW'
--- doc/FLOW 1970-01-01 00:00:00 +0000
+++ doc/FLOW 2010-10-26 07:01:46 +0000
@@ -0,0 +1,50 @@
+Glossary
+--------
+Add Computer - Adds the computer profile into Keryx for management
+Manage Computer - Opens the profile for downloading of packages or installing
+
+Keryx Desktop Flow
+------------------
+Initialize Unwrapt DefinitionManager
+Initialize GTK interface
+Display Main window with only the Home tab (this is not closable)
+ - Home tab displays add/manage computer menu
+ - During management, display statistics (installed packages, space on drive, etc)
+Open a computer for management brings up the software tab and updates tab, but stays focused on the Home tab
+ - Home tab will display "Packages are waiting to be installed" and "Install Packages" button if it detects that it is running on the offline machine and packages are ready to be installed
+User selects to download package(s) from software or updates, download tab is displayed with a list of downloads
+ (NOTE: Users don't need the ability to close tabs, unless they request the feature)
+Packages are downloaded
+User takes Keryx home
+User manages computer
+ - User selects install packages
+ - Install tab is displayed
+ - Integrate a terminal into this view
+ - Begin installation of packages with our chosen method
+ - Create a local repository on the flash drive and add it to their sources. This works because we give users the ability to edit their sources.list anyways, so it would have to be updated if it was changed.
+ - Handled through Unwrapt
+ - Automatically update the computer's status data
+ - Close button can be added to tab when installation is finished
+
+A preferences tab will be always available (even without having a computer open for management) from the menu
+ - This will be just another tab
+ - Keep it stupid simple
+ - Any advanced features go in a secondary tab
+ - Save/cancel
+
+Unwrapt Flow
+------------
+Initialize the DefinitionManager
+ - This loads the definitions from any given folder
+ - If not given a folder, defaults to "__file__/definitions" so that it looks in the location the library is located
+new_instance creates a new Unwrapt client given a definition name and a database to store the information in
+ - TODO: None for definition name will store it in memory
+ - Rename function?
+Set architecture
+Set repos
+Update
+ - Not necessary if the database is populated
+Packages are marked for download
+Packages are downloaded when ready
+Installation
+ - Automatically update status after installation complete
=== added file 'doc/HACKING'
--- doc/HACKING 1970-01-01 00:00:00 +0000
+++ doc/HACKING 2010-10-26 07:01:46 +0000
@@ -0,0 +1,13 @@
+aptdef HACKING
+==============
+
+So you want to improve our apt support do ya? I'm sure it's riddled with holes,
+missing features left and right, but hey now, it works enough. :P
+
+Apt.packages
+- A dictionary of available packages. Each key is the name of the package, and
+each
+
+Apt.status
+- A dictionary of package statuses. Each key is the name of the package, and
+each value contains the data of the installed version and installation status
=== added file 'doc/TODO'
--- doc/TODO 1970-01-01 00:00:00 +0000
+++ doc/TODO 2010-10-26 07:01:46 +0000
@@ -0,0 +1,5 @@
+- Add that TODO list item I forgot to add
+- Include Provides in on_set_status
+- There is a problem with the status format:
+ Using status as a dictionary and making the Provides also listed inside of this means that we have a much larger list of installed packages in comparison to what Synaptic reports. This is fine if our dependency calculations are running perfect. This could be an issue if some real packages are overwritten with a Provides. We will see what happens, but I think it might cause issue later.
+- Add support for index file formats other than Gzip (i.e. Bzip2 and plain text).
=== added file 'example.py'
--- example.py 1970-01-01 00:00:00 +0000
+++ example.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,109 @@
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+
+import logging
+import os
+
+from unwrapt import loader
+
+logging.basicConfig(level=logging.DEBUG)
+
+# Instanciate an apt client
+apt = loader.load("apt")
+
+# Set proxy and authentication if needed
+#apt.set_proxy({"http": "http://192.168.1.100:3128"}, "username", "password")
+
+# Configure the apt client
+apt.set_architecture("amd64")
+#apt.set_architecture("i386")
+
+apt.set_status("/var/lib/dpkg/status")
+
+apt.set_repositories([
+"deb http://us.archive.ubuntu.com/ubuntu/ lucid main restricted",
+"deb http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted",
+"deb http://us.archive.ubuntu.com/ubuntu/ lucid universe",
+"deb http://us.archive.ubuntu.com/ubuntu/ lucid-updates universe",
+"deb http://us.archive.ubuntu.com/ubuntu/ lucid multiverse",
+"deb http://us.archive.ubuntu.com/ubuntu/ lucid-updates multiverse",
+"deb http://security.ubuntu.com/ubuntu lucid-security main restricted",
+"deb http://security.ubuntu.com/ubuntu lucid-security universe",
+"deb http://security.ubuntu.com/ubuntu lucid-security multiverse",
+#"deb http://archive.canonical.com/ lucid partner",
+#"deb http://download.virtualbox.org/virtualbox/debian lucid non-free",
+#"deb http://us.archive.ubuntu.com/ubuntu/ lucid-proposed restricted main multiverse universe",
+#"deb http://us.archive.ubuntu.com/ubuntu/ lucid-backports restricted main multiverse universe"
+])
+
+print "%i available packages before reading lists" % len(apt.get_available_package_names())
+
+#FIXME: /var/lib/apt is not the download directory. We should have the ability
+# to individually specify the download directories.
+#apt.set_download_directory("/var/lib/apt")
+#apt.update(download=False)
+
+apt.update()
+
+#print "%i available packages" % len(apt.get_available_package_names())
+
+#print len(apt.get_available_package_names())
+
+# Get a list of available versions of a package
+versions = apt.get_available_binary_versions("abiword")
+#print versions
+
+# Get the newest version of a package
+package = apt.get_latest_binary("firefox")
+
+# Get a list of dependencies of the package and set them all to be installed
+# Throws an exception because the package is already installed and has a status
+# Keryx is only good for downloading new packages and updated ones
+try:
+ apt.mark_package(package)
+except AttributeError, e:
+ print "%s: %s" % (package["Package"], e)
+
+package = apt.get_latest_binary("abiword")
+apt.mark_package(package)
+
+size = apt.get_changes_size()
+print "%i packages will be downloaded." % size[0]
+print "Need to get %sB of archives." % size[1]
+
+#apt.apply_changes()
+
+#apt.save_changes("keryx_status")
+#apt.set_status("keryx_status")
+
+status = apt.get_package_status("vlc")
+print "vlc is %s" % status
+
+#apt.install("downloads")
+
+#print "Cancelling changes"
+#apt.cancel_changes(downloads=True, installs=True)
+
+status = apt.get_package_status("abiword")
+print "abiword is %s" % status
+
+count = 0
+for item in apt.get_upgrades():
+ count += 1
+ print "%s has a newer version of %s" % (item["Package"], item["Version"])
+
+print "%i packages upgradable" % count
=== added directory 'unwrapt'
=== added file 'unwrapt.py'
--- unwrapt.py 1970-01-01 00:00:00 +0000
+++ unwrapt.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,144 @@
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+
+import logging
+import optparse
+import platform
+
+from unwrapt import loader
+
+
+def get_architecture():
+ arch = platform.machine()
+ if arch == "x86_64":
+ arch = "amd64"
+ elif arch == "i686":
+ arch = "i386"
+ return arch
+
+
+def get_repositories():
+ f = open("/etc/apt/sources.list", "rb")
+ repos = f.readlines()
+ f.close()
+
+ def valid_line(line):
+ """Verify a sources line"""
+ line = line.strip()
+
+ # Line must not be empty,
+ # not be a comment,
+ # and have 4+ sections separated by spaces
+ if line and not line.startswith("#") and len(line.split()) >= 4:
+ return line
+ else:
+ return
+
+ # Parse for valid repos
+ return [valid_line(line) for line in repos if valid_line(line)]
+
+
+# Set up optparse.
+
+usage = """usage: %prog [download|upgrade|install|status] arg1 arg2 [options]
+
+Commands:
+ download download a package and its dependencies
+ upgrade download all available package upgrades
+ status display the status of a package
+ install install downloaded packages"""
+
+parser = optparse.OptionParser(usage=usage)
+
+parser.add_option("-v", "--verbose",
+ help="display debugging messages",
+ action="store_true", default=False)
+parser.add_option("-o", "--offline",action="store_true", default=False)
+parser.add_option("--proxy", help="sets proxy; e.g. http://abc.com:1234";)
+parser.add_option("--proxyuser", dest="proxyuser", metavar="USER")
+parser.add_option("--proxypassword", dest="proxypassword", metavar="PASSWORD")
+
+(options, args) = parser.parse_args()
+
+if not args:
+ parser.error("You must supply a command.")
+
+
+# Set up logging.
+if options.verbose:
+ logging.basicConfig(level=logging.INFO)
+else:
+ logging.basicConfig(level=logging.DEBUG)
+
+
+# Instantiate apt client.
+apt = loader.load("apt")
+
+# Set the proxy info.
+if options.proxy:
+ apt.set_proxy({"http": options.proxy}, options.proxyuser, options.proxypassword)
+
+# Set the system info.
+apt.set_architecture(get_architecture())
+apt.set_repositories(get_repositories())
+apt.set_status("/var/lib/dpkg/status")
+
+# Update the apt client.
+if not options.offline:
+ apt.update()
+else:
+ apt.update(download=False)
+
+logging.info("%i available packages" % len(apt.get_available_package_names()))
+
+# Start with the real work.
+
+if args[0] == "download":
+ if not len(args) >= 2:
+ print "You must provide a package name."
+
+ for pkg_name in args[1:]:
+ package = apt.get_latest_binary(pkg_name)
+ apt.mark_package(package)
+
+ size = apt.get_changes_size()
+ print "%i packages will be downloaded." % size[0]
+ print "Need to get %sB of archives." % size[1]
+
+ apt.apply_changes()
+
+elif args[0] == "upgrade":
+ count = 0
+ for item in apt.get_upgrades():
+ count += 1
+ print "%s has a newer version of %s" % (item["Package"], item["Version"])
+
+ print "%i packages upgradable" % count
+
+elif args[0] == "status":
+ if not len(args) >= 2:
+ print "You must provide a package name."
+
+ for pkg_name in args[1:]:
+ status = apt.get_package_status(pkg_name)
+ print "%s is %s" % (pkg_name, status)
+
+elif args[0] == "install":
+ apt.install("downloads")
+
+else:
+ print "%s is not a valid command." % args[0]
=== added file 'unwrapt/DefinitionBase.py'
--- unwrapt/DefinitionBase.py 1970-01-01 00:00:00 +0000
+++ unwrapt/DefinitionBase.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,455 @@
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+#from sqlalchemy import create_engine
+#from sqlalchemy.ext.declarative import declarative_base
+#from sqlalchemy.orm import sessionmaker
+
+
+#Base = declarative_base()
+
+
+def callback(func):
+ """
+ Our decorator for giving on_<function name> callbacks to definitions
+
+ The DefinitionBase functions will do their work, and then the real
+ defintion will do its work. The return values from the definition will
+ be the results returned.
+ """
+
+ def callback_func(*args, **kwargs):
+ # Call the base function
+ func(*args, **kwargs)
+
+ # Call callback if available
+ name = "on_%s" % func.__name__
+ if hasattr(args[0], name):
+ return getattr(args[0], name)(*args[1:], **kwargs)
+
+ return callback_func
+
+
+class DefinitionBase:
+ """
+ DefinitionBase
+
+ This is the base class for all definitions and provides some default
+ functionality as well as providing callbacks for definitions to
+ implement their code. This helps to make sure that functionality is not
+ overridden when implementing a new definition.
+ """
+
+ download_directory = "downloads"
+
+
+ @callback
+ def __init__(self):
+ """
+ __init__()
+
+ For example:
+
+ client = loader.new_instance("apt")
+ """
+
+ #self.database = database
+ #engine = create_engine("sqlite:///%s" % database)
+ #Base.metadata.create_all(engine)
+
+ #Session = sessionmaker(bind=engine)
+ #self.session = Session()
+
+ pass
+
+
+ #def __del__(self):
+ # self.session.commit()
+ # self.session.close()
+
+
+ @callback
+ def set_download_directory(self, directory):
+ """
+ set_download_directory(directory)
+
+ - directory is the location of the
+ """
+ #FIXME: that docstring.
+
+ self.download_directory = os.path.abspath(os.path.expanduser(directory))
+
+
+ @callback
+ def set_architecture(self, architecture):
+ """
+ set_architecture(architecture)
+
+ - architecture is the platform architecture of the machine.
+ Supported types are amd64, armel, i386, ia64, powerpc, sparc
+
+ For example:
+
+ client.set_architecture("amd64")
+ """
+
+ self.architecture = architecture
+
+
+ @callback
+ def set_proxy(self, proxy, username=None, password=None):
+ """
+ set_proxy(proxies, [username, [password]])
+ - proxy is a dictionary of the protocols and their url's.
+
+ - The last two parameters for proxy authentication and are
+ optional. If omitted, no proxy authentication will be attempted.
+
+ For example:
+
+ proxies = {'http': 'http://www.someproxy.com:3128'}
+ client.set_proxy(proxies, "default", "admin")
+
+ """
+
+ self.proxy = {"proxy": proxy,
+ "user": username,
+ "pass": password}
+
+
+ @callback
+ def set_repositories(self, repositories):
+ """
+ set_repositories(repositories)
+
+ - repositories is a list of "deb url dist section" lines taken
+ straight from the machine's sources.list file.
+
+ For example:download_directory
+
+ f = open("/etc/apt/sources.list", "rb")
+ client.set_repositories(f.readlines())
+ f.close()
+ """
+
+ self.repositories = repositories
+
+
+ @callback
+ def set_status(self, status):
+ """
+ set_status(status)
+
+ - status is the filename containing the package statuses
+
+ Sets the package statuses from the offline machine
+
+ For example:
+
+ client.set_status("/var/lib/dpkg/status")
+ """
+
+ pass
+
+
+ @callback
+ def update(self, reporthook=None, directory=None, download=True):
+ """
+ update(reporthook=None, directory=None, download=True)
+
+ - reporthook is a function name that will be called to report the
+ progress of files as they are being downloaded. If omitted, the
+ function will print out progress into the console.
+
+ - directory is the location to store and read the files from
+
+ - download is a boolean to determine if files are downloaded or not
+ This is useful for machines that are offline and packages are
+ going to be marked and downloaded later on.
+
+ Updates the list of available packages
+
+ For example:
+
+ client.update()
+ """
+
+ pass
+
+
+ @callback
+ def get_available_package_names(self):
+ """
+ get_available_package_names()
+
+ Returns a list of package names
+
+ For example:
+
+ names = client.get_available_package_names()
+ """
+
+ pass
+
+
+ @callback
+ def get_latest_binary(self, package):
+ """
+ get_latest_binary(package)
+
+ - package is the name of the package.
+
+ This function will return the newest version of the package
+ available.
+
+ For example:
+
+ metadata = client.get_latest_binary("firefox")
+ """
+
+ pass
+
+
+ @callback
+ def get_available_binary_versions(self, package):
+ """
+ get_available_binary_versions(package)
+
+ - package is the name of the package.
+
+ This function will return a list of available package versions.
+
+ For example:
+
+ versions = client.get_available_binary_versions("firefox")
+ """
+
+ pass
+
+
+ @callback
+ def get_binary_version(self, package, version):
+ """
+ get_binary_version(package, version)
+
+ - package is the name of the package.
+ - version is the version of the package.
+
+ This function will return the metadata of a package with matching
+ version or None if it does not exist.
+
+ For example:
+
+ metadata = client.get_available_binary_versions("firefox")
+ """
+
+ pass
+
+
+ @callback
+ def mark_package(self, package):
+ """
+ mark_package(package)
+
+ - package is the name of the package.
+
+ This function will mark a package and any necessary dependencies to
+ be downloaded when apply_changes is called.
+
+ For example:
+
+ package = client.get_latest_binary("firefox")
+ client.mark_package(package)
+ """
+
+ pass
+
+
+ @callback
+ def apply_changes(self, reporthook=None):
+ """
+ apply_changes(reporthook=None)
+
+ - reporthook is a function name that will be called to report the
+ progress of files as they are being downloaded. If omitted, the
+ function will print out progress into the console.
+
+ This function will download marked packages and change their status
+ from "to be downloaded" to "to be installed".
+
+ For example:
+
+ client.apply_changes()
+ """
+
+ pass
+
+
+ @callback
+ def save_changes(self, filename):
+ """
+ save_changes(status)
+
+ - filename is the filename where the status information will be
+ written.
+
+ This function will write the status information to file. This is
+ used primarily for saving packages that are marked as
+ "to be downloaded" or "to be installed" so they may be retrieved at
+ a later time.
+
+ When implementing this function, it should write data in EXACTLY
+ the same format as it was read in from the operating system.
+
+ For example:
+
+ client.save_changes("keryx_status")
+ """
+
+ pass
+
+
+ @callback
+ def install(self, directory, root="gksu", reporthook=None):
+ """
+ install(directory, reporthook=None)
+
+ - directory is the location of the downloaded packages and lists.
+ It must have the following folder structure:
+ directory
+ directory/lists
+ directory/packages
+
+ This guarantees the unwrapt will be able to find both the lists
+ and packages in the subdirectories of 'directory'.
+
+ - root is the application called to request the user for root
+ access. This is typically "gksu" for graphical users or "sudo"
+ for CLI users.
+
+ - reporthook is the name of a function that will report the
+ progress of installation.
+
+ This function will install the packages that are marked as
+ "to be installed"
+
+ For example:
+
+ client.install()
+ """
+
+ pass
+
+
+ @callback
+ def get_changes_size(self):
+ """
+ get_changes_download_size()
+
+ This function will return the number of packages that will be
+ cahnged and an approximate amount of bytes that will be downloaded
+ when apply_changes is called.
+
+ For example:
+
+ (number_of_packages, size_text, size_in_bytes) = client.get_changes_download_size()
+
+ print number_of_packages
+ 3
+
+ print size_text
+ '3.6 MB'
+
+ print size_in_bytes
+ 3774873
+ """
+
+ pass
+
+
+ @callback
+ def get_package_status(self, package):
+ """
+ get_package_status()
+
+ - package is the name of the package
+
+ This funciton will return the status of the package requested.
+
+ For example:
+
+ client.get_package_status("firefox")
+ """
+
+ pass
+
+
+ @callback
+ def get_package_version(self, package):
+ """
+ get_package_version()
+
+ - package is the name of the package
+
+ This funciton will return the installed version of the package
+ requested.
+
+ For example:
+
+ client.get_package_version("firefox")
+ """
+
+ pass
+
+
+ @callback
+ def cancel_changes(self, downloads, installs):
+ """
+ cancel_changes(downloads, installs)
+
+ - downloads set to True will cancel any pending package downloads
+ that were marked.
+
+ -installs set to True will cancel any pending package installations
+ that were marked.
+
+ This function will remove all pending "to be downloaded"
+
+ For example:
+
+ client.cancel_changes(downloads=True, installs=True)
+ """
+
+ pass
+
+
+ @callback
+ def get_upgrades(self):
+ """
+ get_upgrades()
+
+ Returns a list of package metadata that are newer versions than the
+ ones currently installed. These items can be marked and installed
+ as upgrades.
+
+ For example:
+
+ upgrades = client.get_upgrades()
+ """
+
+ pass
=== added file 'unwrapt/DefinitionManager.py'
--- unwrapt/DefinitionManager.py 1970-01-01 00:00:00 +0000
+++ unwrapt/DefinitionManager.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,84 @@
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+
+import logging
+import os
+import sys
+
+sys.path.append(os.path.dirname(__file__))
+
+class DefinitionManager:
+ """Definition Manager
+
+ Loads the definitions from a folder and manages them
+ """
+
+
+ definitions = {}
+
+
+ def __init__(self, folder):
+ """Load all available definitions stored in folder"""
+
+ #TODO: User path and variable expansions
+ folder = os.path.abspath(folder)
+
+ if not os.path.isdir(folder):
+ logging.error("Unable to load plugins because '%s' is not a folder" % folder)
+ return
+
+ # Append the folder because we need straight access
+ sys.path.append(folder)
+
+ # Build list of folders in directory
+ to_import = [f for f in os.listdir(folder) if not f.endswith(".pyc")]
+
+ # Do the actual importing
+ for module in to_import:
+ self.__initialize_def(module)
+
+
+ def __initialize_def(self, module):
+ """Attempt to load the definition"""
+
+ # Import works the same for py files and package modules so strip!
+ if module.endswith(".py"):
+ name = module [:3]
+ else:
+ name = module
+
+ # Do the actual import
+ __import__(name)
+ definition = sys.modules[name]
+
+ # Add the definition only if the class is available
+ if hasattr(definition, definition.info["class"]):
+ self.definitions[definition.info["name"]] = definition
+ logging.info("Loaded %s" % name)
+
+
+ def load(self, name, *args, **kwargs):
+ """Creates a new instance of a definition
+ name - name of the definition to create
+
+ any other parameters passed will be sent to the __init__ function
+ of the definition, including those passed by keyword
+ """
+ definition = self.definitions[name]
+ return getattr(definition, definition.info["class"])(*args, **kwargs)
+
+
=== added file 'unwrapt/Download.py'
--- unwrapt/Download.py 1970-01-01 00:00:00 +0000
+++ unwrapt/Download.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,165 @@
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+import sys
+import urllib
+import httplib
+import urlparse
+
+from datetime import datetime
+
+from utils import format_number
+
+
+#TODO: Add resume support: http://code.activestate.com/recipes/83208-resuming-download-of-a-file/
+
+
+class InvalidCredentials(Exception):
+ """
+ Exception raised if the proxy credentials are invalid
+ """
+
+ pass
+
+class ProxyOpener(urllib.FancyURLopener):
+ """
+ Class for handling proxy credentials
+ """
+
+ def __init__(self, proxy={}, usr=None, pwd=None):
+ urllib.FancyURLopener.__init__(self, proxy)
+ self.count = 0
+ self.proxy = proxy
+ self.usr = usr
+ self.pwd = pwd
+
+ def prompt_user_passwd(self, host, realm):
+ """
+ Override the FancyURLopener prompt and simply return what was given
+ Raise an error if there is a problem
+ """
+
+ self.count += 1
+
+ if self.count > 1:
+ raise InvalidCredentials, "Unable to authenticate to proxy"
+
+ return (self.usr, self.pwd)
+
+
+def textprogress(display, current, total):
+ """
+ Download progress in terminal
+ """
+ percentage = current/float(total) * 100
+
+ sys.stdout.write("\r%-56.56s %3i%% [%5sB / %5sB]" % \
+ (display,
+ percentage,
+ format_number(current),
+ format_number(total)))
+
+ if percentage == 100:
+ sys.stdout.write("\n")
+
+ # This makes sure the cursor ends up on the far right
+ # Without this the cursor constantly jumps around
+ sys.stdout.flush()
+
+
+def download_url(url, filename, display=None, progress=textprogress, proxy={}, username=None, password=None):
+ """
+ Downloads a file to ram and returns a string of the contents
+ """
+
+ if not display:
+ display = url.rsplit("/", 1)[1]
+
+ # Do we already have a file to continue off of?
+ # modified determines whether the file is outdated or not based on headers
+ modified = None
+ downloaded = 0
+ if os.path.exists(filename):
+ modified = datetime.utcfromtimestamp(os.stat(filename).st_mtime)
+ downloaded = os.path.getsize(filename)
+
+ # Open up a temporary connection to see if the file we have downloaded
+ # is still usable (based on modification date)
+ # format meanings are located http://docs.python.org/library/time.html
+ opener = ProxyOpener(proxy, username, password)
+ page = opener.open(url)
+ if modified and "Last-Modified" in page.headers:
+ dt = datetime.strptime(page.headers["Last-Modified"],
+ "%a, %d %b %Y %H:%M:%S %Z")
+
+ # File is too old so we delete the old file
+ if modified < dt:
+ #logging.debug("OLD FILE")
+ #print "OLD FILE"
+ downloaded = 0
+ os.remove(filename)
+ page.close()
+
+
+ # Open up the real connection for downloading
+ opener = ProxyOpener(proxy, username, password)
+ if downloaded:
+ opener.addheader("Range", "bytes=%s-" % str(downloaded))
+ page = opener.open(url)
+
+ # The file range must have matched the download size
+ if not "Content-Length" in page.headers:
+ progress("Hit: %s" % display, downloaded, downloaded)
+ return
+
+ # Finish downloading the file
+ length = int(page.headers["Content-Length"]) + downloaded
+ f = open(filename, "ab")
+
+ while 1:
+ data = page.read(8192)
+ if not data:
+ break
+ downloaded += len(data)
+ f.write(data)
+ progress(display, downloaded, length)
+ f.close()
+ page.close()
+
+ return
+
+##Check for Valid URL based on the HTTP response code
+def httpExists(url):
+ host, path = urlparse.urlsplit(url)[1:3]
+ found = 0
+ connection = httplib.HTTPConnection(host) ## Make HTTPConnection Object
+ connection.request("HEAD", path)
+ responseOb = connection.getresponse() ## Grab HTTPResponse Object
+ if responseOb.status == 200:
+ found = 1
+ return found
+
+
+if __name__ == "__main__":
+ # Successful proxy usage
+ download("http://launchpad.net/keryx/stable/0.92/+download/keryx_0.92.4.zip";,
+ "keryx.zip",
+ proxy={"http": "http://tank:3128"},
+ username="excid3", password="password")
+
+
=== added file 'unwrapt/__init__.py'
--- unwrapt/__init__.py 1970-01-01 00:00:00 +0000
+++ unwrapt/__init__.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,26 @@
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+from DefinitionManager import DefinitionManager
+
+# Make sure this works being launched from any location
+__path__ = os.path.dirname(os.path.abspath(__file__))
+folder = "%s/definitions" % __path__
+
+# Load definitions from folder
+loader = DefinitionManager(folder)
=== added directory 'unwrapt/definitions'
=== added directory 'unwrapt/definitions/aptdef'
=== added file 'unwrapt/definitions/aptdef/DpkgVersion.py'
--- unwrapt/definitions/aptdef/DpkgVersion.py 1970-01-01 00:00:00 +0000
+++ unwrapt/definitions/aptdef/DpkgVersion.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,212 @@
+# -*- coding: UTF-8 -*-
+# Small changes by Steve Kowalik, GPL (C) 2005
+# Scott James Remnant told me the license is MIT
+"""Parse and compare Debian version strings.
+
+This module contains a class designed to sit in your Python code pretty
+naturally and represent a Debian version string. It implements various
+special methods to make dealing with them sweet.
+"""
+
+__author__ = "Scott James Remnant <scott@xxxxxxxxxxxx>"
+
+
+import re
+
+
+# Regular expressions make validating things easy
+valid_epoch = re.compile(r'^[0-9]+$')
+valid_upstream = re.compile(r'^[0-9][A-Za-z0-9+:.~-]*$')
+valid_revision = re.compile(r'^[A-Za-z0-9+.~]+$')
+
+# Character comparison table for upstream and revision components
+cmp_table = "~ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+-.:"
+
+
+class VersionError(Exception): pass
+class BadInputError(VersionError): pass
+class BadEpochError(BadInputError): pass
+class BadUpstreamError(BadInputError): pass
+class BadRevisionError(BadInputError): pass
+
+class DpkgVersion(object):
+ """
+ Debian version number.
+
+ This class is designed to be reasonably transparent and allow you to write code like:
+
+ >>> s.version >= '1.100-1'
+
+ The comparison will be done according to Debian rules, so '1.2' will compare lower.
+
+ Properties:
+ - epoch: Epoch
+ - upstream: Upstream version
+ - revision: Debian/local revision
+ """
+
+ allowed_types = ["<<", "<=", "=", ">=", ">>"]
+
+ def __init__(self, ver):
+ """Parse a string or number into the three components."""
+ self.epoch = None
+ self.upstream = None
+ self.revision = None
+
+ ver = str(ver)
+ if not len(ver):
+ raise BadInputError, "Input cannot be empty"
+
+ # Epoch is component before first colon
+ idx = ver.find(":")
+ if idx != -1:
+ self.epoch = ver[:idx]
+ if not len(self.epoch):
+ raise BadEpochError, "Epoch cannot be empty"
+ if not valid_epoch.search(self.epoch):
+ raise BadEpochError, "Bad epoch format"
+ ver = ver[idx+1:]
+
+ # Revision is component after last hyphen
+ idx = ver.rfind("-")
+ if idx != -1:
+ self.revision = ver[idx+1:]
+ if not len(self.revision):
+ raise BadRevisionError, "Revision cannot be empty"
+ if not valid_revision.search(self.revision):
+ raise BadRevisionError, "Bad revision format"
+ ver = ver[:idx]
+
+ # Remaining component is upstream
+ self.upstream = ver
+ if not len(self.upstream):
+ raise BadUpstreamError, "Upstream version cannot be empty"
+ if not valid_upstream.search(self.upstream):
+ raise BadUpstreamError, "Bad upstream version format"
+
+ if self.epoch is not None:
+ self.epoch = int(self.epoch)
+
+ def getWithoutEpoch(self):
+ """Return the version without the epoch."""
+ str = self.upstream
+ if self.revision is not None:
+ str += "-%s" % (self.revision,)
+ return str
+
+ without_epoch = property(getWithoutEpoch)
+
+ def __str__(self):
+ """Return the class as a string for printing."""
+ str = ""
+ if self.epoch is not None:
+ str += "%d:" % (self.epoch,)
+ str += self.upstream
+ if self.revision is not None:
+ str += "-%s" % (self.revision,)
+ return str
+
+ def __repr__(self):
+ """Return a debugging representation of the object."""
+ return "<%s epoch: %r, upstream: %r, revision: %r>" \
+ % (self.__class__.__name__, self.epoch,
+ self.upstream, self.revision)
+
+ def __cmp__(self, other):
+ """Compare two Version classes."""
+ other = DpkgVersion(other)
+
+ # Compare epochs only if they are not equal.
+ if self.epoch != other.epoch:
+ # Special cases for braindead packages
+ sepoch = self.epoch
+ oepoch = other.epoch
+ if sepoch is None:
+ sepoch = 0
+ if oepoch is None:
+ oepoch = 0
+ result = cmp(sepoch, oepoch)
+ if result != 0: return result
+
+ result = deb_cmp(self.upstream, other.upstream)
+ if result != 0: return result
+
+ result = deb_cmp(self.revision or "", other.revision or "")
+ if result != 0: return result
+
+ return 0
+
+ def is_native(self):
+ native = False
+ if not self.revision:
+ native = True
+ return native
+
+ def compare_string(self, comparison, value):
+ if not comparison in self.allowed_types:
+ raise AttributeError, \
+ "%s is not one of the following types: %s" % (comparison,
+ ", ".join(self.allowed_types))
+
+ if comparison == "<<":
+ return self < value
+ elif comparison == "<=":
+ return self <= value
+ elif comparison == "=":
+ return self == value
+ elif comparison == ">=":
+ return self >= value
+ elif comparison == ">>":
+ return self > value
+ else:
+ raise AttributeError, "This should never happen"
+
+def strcut(str, idx, accept):
+ """Cut characters from str that are entirely in accept."""
+ ret = ""
+ while idx < len(str) and str[idx] in accept:
+ ret += str[idx]
+ idx += 1
+
+ return (ret, idx)
+
+def deb_order(str, idx):
+ """Return the comparison order of two characters."""
+ if idx >= len(str):
+ return 0
+ elif str[idx] == "~":
+ return -1
+ else:
+ return cmp_table.index(str[idx])
+
+def deb_cmp_str(x, y):
+ """Compare two strings in a deb version."""
+ idx = 0
+ while (idx < len(x)) or (idx < len(y)):
+ result = deb_order(x, idx) - deb_order(y, idx)
+ if result < 0:
+ return -1
+ elif result > 0:
+ return 1
+
+ idx += 1
+
+ return 0
+
+def deb_cmp(x, y):
+ """Implement the string comparison outlined by Debian policy."""
+ x_idx = y_idx = 0
+ while x_idx < len(x) or y_idx < len(y):
+ # Compare strings
+ (x_str, x_idx) = strcut(x, x_idx, cmp_table)
+ (y_str, y_idx) = strcut(y, y_idx, cmp_table)
+ result = deb_cmp_str(x_str, y_str)
+ if result != 0: return result
+
+ # Compare numbers
+ (x_str, x_idx) = strcut(x, x_idx, "0123456789")
+ (y_str, y_idx) = strcut(y, y_idx, "0123456789")
+ result = cmp(int(x_str or "0"), int(y_str or "0"))
+ if result != 0: return result
+
+ return 0
=== added file 'unwrapt/definitions/aptdef/__init__.py'
--- unwrapt/definitions/aptdef/__init__.py 1970-01-01 00:00:00 +0000
+++ unwrapt/definitions/aptdef/__init__.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,653 @@
+# -*- coding: utf-8 -*-
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+
+"""
+ Our packages are stored in the following format in self.packages
+
+ {"package name": [{version1}, {version2}, {version3}],
+ "package two": [{version1}]}
+
+ This allows us to easily find a package, as well as all the versions
+"""
+
+
+import gzip
+import logging
+import os
+import shutil
+import subprocess
+import sys
+
+from DefinitionBase import DefinitionBase
+from Download import download_url, textprogress, httpExists
+from utils import format_number, to_filename, to_url, url_join
+
+from DpkgVersion import DpkgVersion
+
+
+info = {"name" : "apt",
+ "author" : "Chris Oliver <excid3@xxxxxxxxx>",
+ "version": "1.0",
+ "class" : "Apt"}
+
+
+###############################################################################
+# Custom Exceptions
+###############################################################################
+
+class PermissionsError(Exception):
+ """
+ Unable to run command under current user permissions
+ """
+ pass
+
+
+class UnsupportedArchitecture(Exception):
+ """
+ Project attempted to use an unsupported architecture type
+ """
+ pass
+
+
+class PackageAlreadySet(Exception):
+ """
+ Package is being marked when it already has a status set
+ """
+ pass
+
+
+class InvalidRepository(Exception):
+ """
+ A repository string was passed that is invalid or not supported
+ """
+ pass
+
+
+###############################################################################
+# The AptDef
+###############################################################################
+
+class Apt(DefinitionBase):
+
+ proxy = {"proxy": {},
+ "user": None,
+ "pass": None}
+
+ packages = {}
+ status = {}
+ supported = ["amd64", "armel", "i386", "ia64", "powerpc", "sparc"]
+ status_properties = ["Package", "Version", "Status", "Provides"]
+ binary_dependencies = ["Pre-Depends", "Depends", "Recommends"]
+ supported_statuses = ["install ok installed",
+ "to be downloaded",
+ "dependency to be downloaded",
+ "to be installed",
+ "dependency to be installed"]
+
+
+ def on_set_architecture(self, architecture):
+ """
+ set architecture
+ """
+
+ if not architecture in self.supported:
+ raise UnsupportedArchitecture
+
+ self.architecture = "binary-%s" % architecture
+
+
+ def on_set_repositories(self, repositories):
+ """
+ set repositories list
+ """
+ self.repositories = []
+ for repo in repositories:
+ repo = repo.split('#')[0] # Remove inline comment, if one exists.
+ try:
+ rtype, url, dist, sections = repo.split(None, 3)
+ except:
+ raise InvalidRepository, \
+ "Repository is either invalid or not supported: %s" % repo
+
+ for section in sections.split():
+ r = {}
+ r["rtype"] = rtype
+ r["url"] = url
+ r["dist"] = dist
+ r["section"] = section
+ r["url"] = url_join(url, "dists", dist, section)
+
+ self.repositories.append(r)
+
+
+ def __iter_repositories(self):
+ """
+ Used for iterating through the repository entries
+ This function yields Repository objects and creates them as needed
+ """
+ for repo in self.repositories:
+ if repo["rtype"] == "deb":
+ yield repo
+
+
+ def on_update(self, reporthook=None, download=True):
+ """
+ This is a missing docstring ZOMG!
+ """
+
+ if download:
+ self._download_lists(reporthook)
+
+ self._read_lists()
+
+
+ def _download_lists(self, reporthook=None):
+ """
+ on_update helper function
+ """
+
+ if not reporthook:
+ reporthook = textprogress
+
+ directory = os.path.join(self.download_directory, "lists")
+
+ # If the download directory does not exist, create it
+ if not os.path.exists(directory):
+ os.makedirs(directory)
+
+ for repo in self.__iter_repositories():
+
+ # Build the strings
+ url = to_url(repo, self.architecture, "Packages")
+ filename = to_filename(directory, url)
+ display_name = "Repository => %s / %s" % (repo["dist"], repo["section"])
+
+ # Download
+ #TODO: catch exceptions
+ #TODO: Support bz2 and unarchived Packages files
+ filename = "%s.gz" % filename
+ url_with_ext = "%s.gz" % url
+ #Checks the sources.list URL are valid and downloads the repo files
+ if httpExists(url_with_ext):
+ download_url(url_with_ext,
+ filename,
+ display_name,
+ progress=reporthook,
+ proxy=self.proxy["proxy"],
+ username=self.proxy["user"],
+ password=self.proxy["pass"])
+ else:
+ logging.error("\nURL not exist: %s" % url_with_ext)
+
+
+ def _build_lists(self, directory, lists=[]):
+
+ # Build the strings
+ for repo in self.__iter_repositories():
+ url = to_url(repo, self.architecture, "Packages")
+ filename = to_filename(directory, url)
+ filename = "%s.gz" % filename # Works only if the index files are gz
+ lists.append((repo, filename))
+
+ return lists
+
+
+ def _read_lists(self):
+ """
+ on_update helper function
+ """
+
+ self.packages = {}
+ lists = self._build_lists(os.path.join(self.download_directory, "lists"))
+ total = len(lists)
+
+ # Now parse each file, extracting as necessary
+ for i, value in enumerate(lists):
+ repo, filename = value
+
+ # Display percent read
+ frac = (float(i)/float(total))*100
+ sys.stdout.write("\rReading package lists... %3i%%" % frac)
+ sys.stdout.flush()
+
+ # Attempt to open the package list.
+ try:
+ if filename.endswith(".gz"):
+ f = gzip.open(filename, "rb")
+ else:
+ f = open(filename, "rb")
+ # Parse packages into dictionary
+ self.__parse(repo, f)
+ f.close()
+ except IOError , ioex:
+ # Process the value of Errno and display the respective error message
+ if ioex.errno:
+ # If Errno value is 2, then the file is not exists
+ if ioex.errno == 2:
+ logging.error("\nPackage list does not exist: %s" % filename)
+ else:
+ logging.error("\n%s: %s" % (ioex,filename))
+ continue
+
+ sys.stdout.write("\rReading package lists... %3i%%" % 100)
+ sys.stdout.write("\n")
+ logging.info("%i packages available" % len(self.packages))
+
+
+ def __parse(self, repo, f):
+ """
+ Takes a repository and an open file
+
+ returns a dictionary with all packages in file
+ """
+
+ current = {}
+ for line in f:
+
+ # Do we have a filled out package?
+ if line.startswith("\n"):
+
+ # Attach
+ current["Repository"] = repo
+ if current["Package"] in self.packages:
+ self.packages[current["Package"]].append(current)
+ else:
+ self.packages[current["Package"]] = [current]
+
+ current = {}
+
+ # Do we have a long description?
+ elif line.startswith(" ") or line.startswith("\t"):
+ if "Long" in current:
+ current["Long"] += line
+ else:
+ current["Long"] = line
+
+ # Everything else is a standard property that gets handled the same
+ else:
+ try:
+ key, value = line.split(": ", 1)
+ current[key] = value.strip()
+ except Exception, e:
+ logging.debug(repr(line))
+ logging.debug(e)
+
+
+ def on_set_status(self, status="/var/lib/dpkg/status"):
+ """
+ Parses the dpkg status file for package versions, names, and
+ installed statuses.
+ """
+
+ f = open(status, "rb")
+
+ self.status = {}
+
+ current = {}
+ for line in f:
+
+ # Add package metadata to status
+ if line.startswith("\n") and "Package" in current:
+
+ # Only add package if it is a supported status
+ if current["Status"] in self.supported_statuses:
+ self.status[current["Package"]] = current
+
+ # Mark the provides as well for dependency calculation
+ if "Provides" in current:
+ for provide in current["Provides"].split(", "):
+ self.status[provide] = current
+
+ current = {}
+
+ else:
+ # Add property
+ try:
+ key, value = line.split(": ", 1)
+
+ if key in self.status_properties:
+ current[key] = value.strip()
+ except:
+ pass
+
+ f.close()
+
+ logging.info("%i packages installed" % len(self.status))
+
+
+ def on_get_available_package_names(self):
+ return self.packages.keys()
+
+
+ def on_get_latest_binary(self, package):
+ """
+ Returns the data for latest version of a package
+ """
+
+ available = self.get_available_binary_versions(package)
+
+ if not available:
+ return None
+
+ # Set the DpkgVersion instance for each package
+ for pkg in available:
+ pkg["DpkgVersion"] = DpkgVersion(pkg["Version"])
+
+ # Compare the versions
+ newest = available[0]
+ for pkg in available[1:]:
+ if pkg["DpkgVersion"] > newest["DpkgVersion"]:
+ newest = pkg
+
+ return newest
+
+
+ def on_get_binary_version(self, package, version):
+
+ available = self.get_available_binary_versions(package)
+
+ if available:
+
+ # Return the metadata of the package with matching version
+ for package in available:
+ if DpkgVersion(package["Version"]) == version:
+ return package
+
+ return None
+
+
+ def on_get_available_binary_versions(self, package):
+ """
+ Return a list of metadata for all available packages with a
+ matching name
+ """
+
+ if not package in self.packages:
+ return None
+
+ return self.packages[package]
+
+
+ def on_mark_package(self, metadata, dependency=False):
+ """
+ Get a list of dependencies based on package metadata
+ """
+
+ if not metadata:
+ raise AttributeError, "You must supply valid package metadata"
+
+ #TODO: This function obviously needs to be split up and modularized :)
+
+ # First check if the package is installed already?
+ if self.__is_installed(metadata["Package"]) and \
+ not self.__is_upgradable(metadata["Package"]):
+ raise AttributeError, "Package already installed and up-to-date."
+
+ # Mark the package itself
+ if not dependency: metadata["Status"] = "to be downloaded"
+ else: metadata["Status"] = "dependency to be downloaded"
+ self.status[metadata["Package"]] = metadata
+
+ logging.info("Finding dependencies for %s..." % metadata["Package"])
+
+ depends = self.on_get_package_dependencies(metadata)
+
+ # Do the dependency calculations
+ for dep in depends:
+
+ # In case we have some ORs
+ options = dep.split(" | ")
+
+ satisfied = False
+ for option in options:
+
+ details = option.split(" ")
+ name = details[0]
+
+ # If any of these packages are already installed
+ if name in self.status:
+ #logging.debug("Dependency %s installed!" % name)
+
+ # Assume installed version will work
+ satisfied = True
+
+ # Test for compatible version just in case
+ if len(details) > 1:
+ comparison = details[1][1:] # strip the '('
+ version = details[2][:-1] # strip the ')'
+
+ satisfied = DpkgVersion(self.status[name]["Version"]). \
+ compare_string(comparison, version)
+
+ # No need to test the other options if one is found
+ if satisfied:
+ break
+
+ # No package was installed, so take the first one and add it
+ # as a dependency
+ if not satisfied:
+
+ name = options[0].split(" ", 1)[0]
+ pkg = self.get_latest_binary(name)
+
+ #TODO: Verify pkg's version satisfies
+ #pkg["Status"] = "to be downloaded"
+ #self.status[pkg["Package"]] = pkg
+ #print pkg
+
+ # Mark sub-dependencies as well
+ if pkg:
+ self.on_mark_package(pkg, dependency=True)
+
+
+ def on_get_package_dependencies(self, metadata):
+
+ # Build a string of the necessary sections we need
+ depends = []
+ for section in self.binary_dependencies:
+ if section in metadata:
+ depends += metadata[section].split(", ")
+
+ return depends
+
+
+ def on_apply_changes(self):
+
+ directory = os.path.join(self.download_directory, "packages")
+
+ # Build the list of package urls to download
+ downloads = [(key, value["Repository"]["url"].split("dists")[0] + value["Filename"]) \
+ for key, value in self.status.items() \
+ if value["Status"] in ["to be downloaded", "dependency to be downloaded"]]
+
+ #downloads = []
+ #for key, value in self.status.items():
+ # if value["Status"] == "to be downloaded":
+ # downloads.append(value["Repository"]["url"].split("dists")[0] + value["Filename"])
+
+ logging.info("%i packages to be installed" % len(downloads))
+
+ # Create the download directory if it doesn't exist
+ if not os.path.exists(directory):
+ os.mkdir(directory)
+
+ # Download the files
+ for key, url in downloads:
+ download_url(url,
+ "%s/%s" % (directory, url.rsplit("/", 1)[1]),
+ proxy=self.proxy["proxy"],
+ username=self.proxy["user"],
+ password=self.proxy["pass"])
+ # Once it's downloaded, mark this package status to "to be installed"
+ # or "dependency to be installed", depending on what it is now.
+ if self.status[key]["Status"] == "to be downloaded":
+ self.status[key]["Status"] = "to be installed"
+ elif self.status[key]["Status"] == "dependency to be downloaded":
+ self.status[key]["Status"] = "dependency to be installed"
+
+
+ def on_save_changes(self, status):
+
+ # This will NOT create a status file to override /var/lib/dpkg/status
+ # so DO NOT try to replace the system status file.
+ # YOU HAVE BEEN WARNED
+
+ f = open(status, "wb")
+
+ for status, package in self.status.items():
+
+ # Try to write these back in the order they were read
+ properties = ["Package", "Status", "Version", "Provides"]
+ lines = ["%s: %s\n" % (key, package[key]) for key in properties if key in package]
+
+ f.writelines(lines)
+ f.write("\n")
+
+ f.close()
+
+
+ def on_cancel_changes(self, downloads, installs):
+
+ for key, value in self.status.items():
+ if downloads and value["Status"] in \
+ ["to be downloaded", "dependency to be downloaded"] or \
+ installs and value["Status"] in \
+ ["to be installed", "dependency to be installed"]:
+ del self.status[key]
+
+
+ def on_get_changes_size(self):
+
+ # Build list of packages to be downloaded
+ packages = [(value["Package"], value["Version"]) \
+ for key, value in self.status.items() \
+ if value["Status"] in ["to be downloaded", "dependency to be downloaded"]]
+
+ count = 0
+ total = 0
+ for name, version in packages:
+ package = self.get_binary_version(name, version)
+ if package:
+ total += int(package["Size"])
+ count += 1
+
+ return (count, format_number(total), total)
+
+
+ def on_get_package_status(self, package):
+
+ if package in self.status:
+ return self.status[package]["Status"]
+
+ return "not installed"
+
+
+ def on_get_package_version(self, package):
+
+ if package in self.status:
+ return self.status[package]["Version"]
+
+ return None
+
+
+ def on_install(self, reporthook=None):
+ """
+ We will take the approach of installing by copying the lists to
+ /var/lib/apt/lists and the packages to /var/cache/apt/archives and
+ calling apt-get update and then apt-get install on the packages
+ which have the status of "to be installed". This prevents tampering
+ with sources.list and works more or less the exact same if we made
+ a local repository.
+ """
+
+ if not os.geteuid() == 0:
+ raise PermissionsError, "You may only install as root"
+
+ # Copy lists over
+ for repo in self.__iter_repositories():
+ url = to_url(repo, self.architecture, "Packages")
+ filename = to_filename(os.path.join(self.download_directory, "lists"), url)
+
+ try:
+ # Extract the gz
+ g = gzip.open("%s.gz" % filename, "rb")
+ f = open(os.path.join("/var/lib/apt/lists", os.path.basename(filename)), "wb")
+ f.write(g.read())
+ f.close()
+ g.close()
+ except IOError, e:
+ # We will just ignore this, it only trip out if the user did download=False on update()
+ pass
+
+
+ # Copy packages over
+ for key, value in self.status.items():
+ if value["Status"] in ["to be installed", "dependency to be installed"]:
+ pkg_filename = self.get_binary_version(value["Package"], value["Version"])["Filename"].rsplit("/", 1)[1]
+ filename = os.path.join(self.download_directory, "packages", pkg_filename)
+ dest = os.path.join("/var/cache/apt/archives", os.path.basename(filename))
+ shutil.copyfile(filename, dest)
+
+
+ # Call apt-get install with the packages
+ packages = [value["Package"] for key, value in self.status.items() if value["Status"] == "to be installed"]
+
+ subprocess.call("apt-cache gencaches", shell=True)
+ subprocess.call("apt-get -y install %s" % " ".join(packages), shell=True)
+
+
+ def on_get_upgrades(self):
+
+ upgrades = []
+
+ # We will only check the installed packages, anything to be downloaded
+ # or installed can wait. We might want to change this in the future.
+ installed = [value for key, value in self.status.items() if value["Status"] == "install ok installed"]
+
+ for current in installed:
+ latest = self.get_latest_binary(current["Package"])
+
+ # Only if there is a version available should we check to see if
+ # there is a newer version. We also don't want to mark it twice if
+ # the package is already selected for upgrade
+ if latest and latest not in upgrades and DpkgVersion(latest["Version"]) > DpkgVersion(current["Version"]):
+ upgrades.append(latest)
+
+ return upgrades
+
+
+ def __is_installed(self, package):
+ """Take a package name, returns True if installed, False otherwise."""
+ status = self.on_get_package_status(package)
+ if status == "not installed":
+ return False
+ return True
+
+
+ def __is_upgradable(self, package):
+ """Takes a package name, returns True if installed and out-of-date,
+ False otherwise.
+ """
+ if not self.__is_installed(package):
+ return False #FIXME: should we raise an error?
+ current = self.status[package]
+ latest = self.get_latest_binary(package)
+ if latest and DpkgVersion(latest["Version"]) > DpkgVersion(current["Version"]):
+ return True
+ else:
+ return False
=== added file 'unwrapt/utils.py'
--- unwrapt/utils.py 1970-01-01 00:00:00 +0000
+++ unwrapt/utils.py 2010-10-26 07:01:46 +0000
@@ -0,0 +1,81 @@
+# Unwrapt - cross-platform package system emulator
+# Copyright (C) 2010 Chris Oliver <chris@xxxxxxxxxx>
+#
+# This program 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 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+
+def url_join(*args):
+ """ Returns full URL """
+ # Strip any leading or trailing slashes from the parts.
+ args = [x.strip("/") for x in args]
+
+ return "/".join(args)
+
+
+def to_url(repository, architecture, format):
+ return url_join(repository["url"], architecture, format)
+
+
+def to_filename(directory, url):
+ """
+ Forms a full filename from a directory and url.
+ i.e. Strips the url of the protocol prefix, replaces all slashes with
+ underscores, and appends it to directory.
+ """
+ return os.path.join(directory, url.split("//")[1].replace("/", "_"))
+
+
+def format_number(number, SI=0, space=' '):
+ """
+ Turn numbers into human-readable metric-like numbers
+ Used from the urlgrabber library
+ """
+ symbols = ['', # (none)
+ 'k', # kilo
+ 'M', # mega
+ 'G', # giga
+ 'T', # tera
+ 'P', # peta
+ 'E', # exa
+ 'Z', # zetta
+ 'Y'] # yotta
+
+ if SI: step = 1000.0
+ else: step = 1024.0
+
+ thresh = 999
+ depth = 0
+ max_depth = len(symbols) - 1
+
+ # we want numbers between 0 and thresh, but don't exceed the length
+ # of our list. In that event, the formatting will be screwed up,
+ # but it'll still show the right number.
+ while number > thresh and depth < max_depth:
+ depth = depth + 1
+ number = number / step
+
+ if type(number) == type(1) or type(number) == type(1L):
+ # it's an int or a long, which means it didn't get divided,
+ # which means it's already short enough
+ format = '%i%s%s'
+ elif number < 9.95:
+ # must use 9.95 for proper sizing. For example, 9.99 will be
+ # rounded to 10.0 with the .1f format string (which is too long)
+ format = '%.1f%s%s'
+ else:
+ format = '%.0f%s%s'
+
+ return(format % (float(number or 0), space, symbols[depth]))
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