commit 198ab28f3bff343175099626b40066f53a0c6d80
Author: parazyd <parazyd@dyne.org>
Date: Fri, 21 Apr 2017 21:56:43 +0200
current
Diffstat:
| A | .gitignore | | | 3 | +++ |
| A | LICENSE | | | 661 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | Makefile | | | 2 | ++ |
| A | amprolla-init | | | 62 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | doc/HACKING.md | | | 50 | ++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | doc/dan-notes | | | 109 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | doc/directories | | | 26 | ++++++++++++++++++++++++++ |
| A | doc/file-formats | | | 96 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | lib/__init__.py | | | 0 | |
| A | lib/config.py | | | 198 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | lib/delta.py | | | 106 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | lib/fs.py | | | 33 | +++++++++++++++++++++++++++++++++ |
| A | lib/log.py | | | 21 | +++++++++++++++++++++ |
| A | lib/net.py | | | 26 | ++++++++++++++++++++++++++ |
14 files changed, 1393 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,3 @@
+*.pyc
+spool/
+merged/
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,661 @@
+ GNU AFFERO GENERAL PUBLIC LICENSE
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+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 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 Affero 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero 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 your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+ 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 AGPL, see
+<http://www.gnu.org/licenses/>.
diff --git a/Makefile b/Makefile
@@ -0,0 +1,2 @@
+clean:
+ rm -f **/*.pyc
diff --git a/amprolla-init b/amprolla-init
@@ -0,0 +1,62 @@
+#!/usr/bin/env python2
+# copyright (c) 2017 - Ivan J. <parazyd@dyne.org>
+# see LICENSE file for copyright and license details
+
+import os
+#import re
+import requests
+import sys
+import threading
+
+import lib.config as config
+import lib.delta as delta
+import lib.fs as fs
+import lib.net as net
+from lib.log import die, notice, warn, cleanexit
+
+
+def popDirs():
+ paths = fs.crawl()
+
+ notice("creating initial directory structure")
+ for i in range(0, len(paths)):
+ baseurl = "http://" + "/".join([config.repos[i]["host"], config.repos[i]["dists"]])
+ basepath = "/".join([config.amprolla["spooldir"], config.repos[i]["dists"]])
+
+ for j in paths[config.repos[i]["name"]]:
+ suiteurl = "/".join([baseurl, j])
+ suitepath = "/".join([basepath, j])
+ if not os.path.exists(suitepath):
+ os.makedirs(suitepath)
+
+ for k in config.mainrepofiles:
+ relurl = "/".join([suiteurl, k])
+ relfile = "/".join([suitepath, k])
+ if not os.path.isfile(relfile):
+ net.download(relurl, relfile)
+
+ try:
+ with open(suitepath + "/Release", "rb") as frel:
+ rels = frel.read()
+ relmap = delta.parseRel(rels)
+ except IOError:
+ warn("no Release file for %s" % suitepath)
+
+ try:
+ for k in relmap:
+ if relmap[k] == "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855":
+ continue # ^ this is /dev/null
+ fileurl = "/".join([suiteurl, k])
+ filepath = "/".join([suitepath, k])
+ if not os.path.exists(os.path.dirname(filepath)):
+ os.makedirs(os.path.dirname(filepath))
+ if not os.path.isfile(filepath):
+ net.download(fileurl, filepath)
+ except TypeError:
+ warn("Typeerror")
+
+def merge():
+ for i in config.amprolla["mergedsubdirs"]:
+ mdir = "/".join([config.amprolla["mergedir"], i])
+ if not os.path.exists(mdir):
+ os.makedirs(mdir)
diff --git a/doc/HACKING.md b/doc/HACKING.md
@@ -0,0 +1,50 @@
+* an older spool directory hierarchy, for testing the merging:
+ https://pub.parazyd.cf/tmp/spool.tgz (2GB)
+
+
+workflow
+--------
+
+`amprolla-init` creates the `spool` directory hierarchy. This hierarchy
+is the untouched repositories we want to merge. They can be found in
+`lib/config.py` in the `repos` dict.
+
+`fs.crawl()` takes the info from `config.py` and generates the paths we
+use to figure out what to download. Then `popDirs()` in `amprolla-init`
+uses these paths to actually create the directory structure and download
+the `Release` files from there. (NOTE: at a final point it should also
+check the gpg signatures from the `InRelease` file)
+
+After the Release files are downloaded, they are parsed for their
+contents and all the files they list are downloaded in series (possibly
+should be parallel).
+
+So now we have all the files we need to create a merge.
+
+
+
+The merge will be done in the `merged/` directory. To do a successful
+merge, these are the points that need to be accomplished:
+
+ * we must skip packages that are in `config.py/amprolla.banpkgs`
+ * for each `binary-$arch` we must create a new `Packages` file,
+ containing our merge:
+ * we parse every package and fill in a dict
+ * first priority 0, then 1, then 2, etc...
+ * if a package already exists from a higher-priority repo - it
+ gets skipped
+ * (NOT SURE): if a package from `banpkgs` is in a package's
+ dependency list - that package gets skipped
+ * once we've finished the iteration, we dump a new Packages file
+ from the updated dict
+
+
+
+After the initial merge, we need to watch for updates. My idea is to
+make amprolla pool the above-mentioned Release files as they contain
+enough metadata for us to find out what changed. They also contain a
+date entry so we can see if there was actually an update without digging
+too deep.
+
+So if we figure out there was an update, we download the new file, parse
+it into a dict and compare it to the old version of that file/dict.
diff --git a/doc/dan-notes b/doc/dan-notes
@@ -0,0 +1,109 @@
+Ok... so the debian repo is essentially a directory heirarchy...
+
+Ok.. Do you understand the repo heirarchy? ie the main folder (in
+amprolla case /merged) with sub folders 'dist' (for repo metadata) and
+'pool' (where the actual binary and source packages go)??
+forget about the "pool" folder, amprolla doesn't touch it...
+
+in "dists/" you have all the suites ie: jessie, ascii, ceres and all
+the and stable, unstable and version symlinks.
+
+in the suite folder, you find the section folders: main contrib non-free
+and files InRelease, Release and Release.gpg
+
+InRelease is just the pgp/smime version of the Release file - the gpg
+sig is the same as Release.gpg
+
+Anyway the Release file basically is a dictionary of most of the files
+in the subdirectory with size and checksums (SHA256, SHA512 etc) in what
+is essentially RFC822 format, with a bunch of headers at the top that
+specify details about the Release of that suite.
+
+In the suite subdirectories you have a bunch of folders, binary-<arch>
+which contains the Packages file, and compressed copies of that, and a
+Release Stanza, and similar for the source folder with Sources file and
+compressed copies etc.
+
+the Contents files (currently not processed) are their too.
+(They contain a list of all the files in each package)
+
+their is also the i8n - folder which contains the processed files.
+oops s/processed files/translation files/
+
+
+Amprolla takes several mirrors and merges them in order of priority
+starting with the highest priority. It firsts iterates over the structure
+to create it's repo structure, ie dists/<suite>/<section>/ etc and then first
+copies the highest priority mirror Packages and Sources files in and then for
+the othermirrors iterates over the Packages and Sources files and compares
+each package stanza for a match, and if there is a match on name then the highest
+priority mirror version is kept, if not then the package is added in.
+(This is where the inefficient model really shows up)
+
+
+After all the new Source and Packages files are processed then the Release and
+InRelease files are generated by walking the hierarchy and adding those files in.
+
+There is a lot of complexities, part of which is in the design of amprolla.
+What I had started to do, and in describing it now, it seems obvious to me
+I should probably have started pretty much from scratch is instead of this
+iterative approach of compare and add or skip is keep a cache of each mirrors
+last state, and then on each run create a delta between the last state and
+current state.
+
+
+* and how does dak integrate in all of this?
+it doesn't. Dak is a standalone repository which just deals with the packages built by our CI
+* so it's the same as any debian repo
+Yup, slightly modified to handle our CI and some other tweaks
+and I checked and our version is in gdo too.
+
+
+anyway as I was saying about my approach re delta's:
+There are big efficiencies in this approach. For starters, we only download the InRelease or
+Release and Release.gpg file and after verifying it, compare to the previous state, and we
+can use the delta generated to pick what files are new, changed or removed from the repo.
+This means we only download the changed files in the repo for a start. And for the
+Packages and Sources files we create a delta list of changed stanza's to apply.
+
+Instead of building the entire repo from scratch, we apply the delta
+to a copy of our merged repo with handling for priority etc...
+
+What stumped me in the end is we actually should verify that we only have packages go in that
+have a matching source stanza and we really need to process the contents and translations
+at the same time.
+
+I suspect that nextime realised this which is why he started on amprolla2 which essentially
+replicates dak + amprolla function...
+
+I just realised, I forgot to mention the overrides processing in amprolla. In the very
+top of the dir in "merged/" is the "indices" folder that contains overrides. These
+files specify for each Packages files, any metadata changes that need to be applied to
+package stanza's
+
+In debian their is a entry for every single deb package/source in the archive making
+them very large. We did away with that to reduce the overhead of processing it created.
+
+So we only have entries for those that need changing, usually to change priorities of
+systemd packages and remove recommends and suggests for systemd related packages.
+
+* are indices a part of the repo or only needed by amprolla?
+both. In debian, dak generates them and they are hand modified by the repo masters to
+apply needed fixes. With amprolla, we only create them for applying our own changes as needed.
+Technically they don't need to be in the repo, as they're not used by apt, but practically
+it's good to have them there.
+
+hmmm, I think I've cracked my problem...
+If I use the Sources delta to identify changed packages, I can use that to pick and apply
+the changed Packages stanza's Contents and Translations. This would save lot's of
+iterations, and I only need the delta Processing to be done on the Sources files.
+Wow that would really speed things up
+
+The other benefit, is we can side load packages this way too and use it to replace dak
+as well as either a standalone repo or directly into the merged repo.
+And all without a hefty database. or the writeup
+
+your welcome. It has helped me probably as much as you. I think it's
+turning into a full rewrite, but seems better design and possibly far easier to
+write from scratch.
+Anyway, it's nearly 3:30am here, so better get a couple hours sleep!
diff --git a/doc/directories b/doc/directories
@@ -0,0 +1,26 @@
+example aliases(?)
+http://packages.devuan.org/devuan/dists/
+
+1.0 -> jessie
+2.0 -> ascii
+ascii
+ascii-backports
+ascii-proposed-updates
+ascii-security
+ascii-updates
+ceres -> unstable
+jessie
+jessie-backports
+jessie-proposed-updates
+jessie-security
+jessie-updates
+sid -> unstable
+stable -> jessie
+stable-backports -> jessie-backports
+stable-proposed-updates -> jessie-proposed-updates/
+stable-updates -> jessie-updates/
+testing -> ascii
+testing-backports -> ascii-backports
+testing-proposed-updates -> ascii-proposed-updates/
+testing-updates -> ascii-updates
+unstable
diff --git a/doc/file-formats b/doc/file-formats
@@ -0,0 +1,96 @@
+example package:
+----------------
+ Package: apache2-mpm-event
+ Source: apache2
+ Version: 2.4.10-10+deb8u8
+ Installed-Size: 22
+ Maintainer: Debian Apache Maintainers <debian-apache@lists.debian.org>
+ Architecture: amd64
+ Provides: httpd, httpd-cgi
+ Depends: apache2 (= 2.4.10-10+deb8u8)
+ Description: transitional event MPM package for apache2
+ Homepage: http://httpd.apache.org/
+ Description-md5: e8836e8c2c34524fb11cc83011803e4e
+ Section: httpd
+ Priority: optional
+ Filename: pool/updates/main/a/apache2/apache2-mpm-event_2.4.10-10+deb8u8_amd64.deb
+ Size: 1520
+ MD5sum: e82aa67838c581d8217795dd6dbcb614
+ SHA1: a0d59e70ea06d145af068f46649ba80a75bb75cf
+ SHA256: e756d82ab7111a9c76291c91e344bbbddc0d9945704ad42f1140af0594c74cad
+
+example source:
+---------------
+
+ Package: apache2
+ Binary: apache2, apache2-data, apache2-bin, apache2-mpm-worker, apache2-mpm-prefork, apache2-mpm-event, apache2-mpm-itk, apache2.2-bin, apache2.2-commo
+ n, libapache2-mod-proxy-html, libapache2-mod-macro, apache2-utils, apache2-suexec, apache2-suexec-pristine, apache2-suexec-custom, apache2-doc, apache2
+ -dev, apache2-dbg
+ Version: 2.4.10-10+deb8u8
+ Maintainer: Debian Apache Maintainers <debian-apache@lists.debian.org>
+ Uploaders: Stefan Fritsch <sf@debian.org>, Arno Töll <arno@debian.org>
+ Build-Depends: debhelper (>= 9.20131213~), lsb-release, dpkg-dev (>= 1.16.1~), libaprutil1-dev (>= 1.5.0), libapr1-dev (>= 1.5.0), libpcre3-dev, zlib1g
+ -dev, libssl-dev (>= 0.9.8m), perl, liblua5.1-0-dev, libxml2-dev, autotools-dev, gawk | awk
+ Architecture: any all
+ Standards-Version: 3.9.6
+ Format: 3.0 (quilt)
+ Files:
+ 4cc0006932cbdb7a2597691505f39424 3277 apache2_2.4.10-10+deb8u8.dsc
+ 44543dff14a4ebc1e9e2d86780507156 5031834 apache2_2.4.10.orig.tar.bz2
+ 7d43a85707568321b98305fe61e386d5 555484 apache2_2.4.10-10+deb8u8.debian.tar.xz
+ Vcs-Browser: http://anonscm.debian.org/gitweb/?p=pkg-apache/apache2.git
+ Vcs-Git: git://anonscm.debian.org/pkg-apache/apache2.git
+ Checksums-Sha1:
+ dd6e773c03c22eb97beffe56e39b9f4b17eea31e 3277 apache2_2.4.10-10+deb8u8.dsc
+ 00f5c3f8274139bd6160eda2cf514fa9b74549e5 5031834 apache2_2.4.10.orig.tar.bz2
+ a789b374f989dfe3734cb9b1895e7d2891b5fd04 555484 apache2_2.4.10-10+deb8u8.debian.tar.xz
+ Checksums-Sha256:
+ c20dc666e6192c3db716e1dfb60afed3248aabd9a2d3232301a11fe8d936dac6 3277 apache2_2.4.10-10+deb8u8.dsc
+ 176c4dac1a745f07b7b91e7f4fd48f9c48049fa6f088efe758d61d9738669c6a 5031834 apache2_2.4.10.orig.tar.bz2
+ 352be8c8245c162a9d97cf167a904fd1684904ffede565f23a654935701b40fa 555484 apache2_2.4.10-10+deb8u8.debian.tar.xz
+ Homepage: http://httpd.apache.org/
+ Build-Conflicts: autoconf2.13
+ Package-List:
+ apache2 deb httpd optional arch=any
+ apache2-bin deb httpd optional arch=any
+ apache2-data deb httpd optional arch=all
+ apache2-dbg deb debug extra arch=any
+ apache2-dev deb httpd optional arch=any
+ apache2-doc deb doc optional arch=all
+ apache2-mpm-event deb oldlibs extra arch=any
+ apache2-mpm-itk deb oldlibs extra arch=any
+ apache2-mpm-prefork deb oldlibs extra arch=any
+ apache2-mpm-worker deb oldlibs extra arch=any
+ apache2-suexec deb oldlibs extra arch=any
+ apache2-suexec-custom deb httpd extra arch=any
+ apache2-suexec-pristine deb httpd optional arch=any
+ apache2-utils deb httpd optional arch=any
+ apache2.2-bin deb oldlibs extra arch=any
+ apache2.2-common deb oldlibs extra arch=any
+ libapache2-mod-macro deb oldlibs extra arch=any
+ libapache2-mod-proxy-html deb oldlibs extra arch=any
+ Directory: pool/updates/main/a/apache2
+ Priority: source
+ Section: httpd
+
+example translation:
+--------------------
+
+ Package: libactivemq-java
+ Description-md5: b7875bda385f5f6b4e36597054392132
+ Description-en: Java message broker core libraries
+ Apache ActiveMQ is a message broker built around Java Message Service (JMS)
+ API : allow sending messages between two or more clients in a loosely coupled,
+ reliable, and asynchronous way.
+ .
+ This message broker supports :
+ * JMS 1.1 and J2EE 1.4 with support for transient, persistent, transactional
+ and XA messaging
+ * Spring Framework, CXF and Axis integration
+ * pluggable transport protocols such as in-VM, TCP, SSL, NIO, UDP, multicast,
+ JGroups and JXTA
+ * persistence using JDBC along with journaling
+ * OpenWire (cross language wire protocol) and
+ Stomp (Streaming Text Orientated Messaging Protocol) protocols
+ .
+ This package contains a core Java library for ActiveMQ.
diff --git a/lib/__init__.py b/lib/__init__.py
diff --git a/lib/config.py b/lib/config.py
@@ -0,0 +1,198 @@
+#!/usr/bin/env python
+# copyright (c) 2017 - Ivan J. <parazyd@dyne.org>
+# see LICENSE file for copyright and license details
+
+amprolla = {
+ "spooldir": "./spool",
+ "sign_key": "fa1b0274",
+ "mergedir": "./merged",
+ "mergedsubdirs": [ "dists", "pool"],
+ "banpkgs": [ 'systemd', 'systemd-sysv' ]
+ #"checksums": [ 'md5sum', 'sha1', 'sha256', 'sha512' ]
+}
+
+repos = {
+ ## key name is priority, first is 0
+ 0: {
+ "name": "DEVUAN",
+ "host": "packages.devuan.org",
+ "dists": "devuan/dists",
+ "pool": "devuan/pool",
+ "aliases": False,
+ "skipmissing": False
+ },
+ 1: {
+ "name": "DEBIAN-SECURITY",
+ "host": "security.debian.org",
+ "dists": "dists",
+ "pool": "pool",
+ "aliases": True,
+ "skipmissing": True
+ },
+ 2: {
+ "name": "DEBIAN",
+ #"host": "httpredir.debian.org",
+ "host": "ftp.debian.org",
+ "dists": "debian/dists",
+ "pool": "debian/pool",
+ "aliases": True,
+ "skipmissing": False
+ }
+}
+
+suites = {
+ 'jessie': [
+ 'jessie',
+ 'jessie-backports',
+ 'jessie-proposed-updates',
+ 'jessie-security',
+ 'jessie-updates'
+ ],
+ 'ascii': [
+ 'ascii',
+ 'ascii-backports',
+ 'ascii-proposed-updates',
+ 'ascii-security',
+ 'ascii-updates'
+ ],
+ 'unstable': [
+ 'unstable'
+ ]
+}
+
+aliases = {
+ "DEBIAN-SECURITY": {
+ 'ascii-security': 'testing/updates',
+ 'jessie-security': 'jessie/updates'
+ },
+ "DEBIAN": {
+ 'ascii': 'testing',
+ 'ascii-backports': 'testing-backports',
+ 'ascii-proposed-updates': 'testing-proposed-updates',
+ 'ascii-updates': 'testing-updates'
+ }
+}
+
+categories = [ 'main', 'contrib', 'non-free' ]
+
+
+releases = {
+ "Release-jessie": {
+ "Suite": "stable",
+ "Codename": "jessie",
+ "Label": "Devuan",
+ "Version": "1.0",
+ "Description": "Devuan 1.0 Jessie (stable release)"
+ },
+ "Release-ascii": {
+ "Suite": "testing",
+ "Codename": "ascii",
+ "Label": "Devuan",
+ "Version": "2.0",
+ "Description": "Devuan 2.0 Ascii (testing release)"
+ },
+ "Release-unstable": {
+ "Suite": "unstable",
+ "Codename": "ceres",
+ "Label": "Devuan",
+ "Version": "x.x",
+ "Description": "Devuan x.x Ceres (unstable release)"
+ }
+}
+
+
+binaryarches = [
+ 'all',
+ 'alpha',
+ 'amd64',
+ 'arm64',
+ 'armel',
+ 'armhf',
+ 'hppa',
+ 'hurd-i386',
+ 'i386',
+ 'ia64',
+ 'kfreebsd-amd64',
+ 'kfreebsd-i386',
+ 'mips',
+ 'mips64el',
+ 'mipsel',
+ 'powerpc',
+ 'ppc64el',
+ 's390x',
+ 'sparc'
+]
+
+installerarches = [
+ 'amd64',
+ 'arm64',
+ 'armel',
+ 'i386'
+]
+
+mainrepofiles = [
+ "InRelease",
+ "Release",
+ "Release.gpg"
+]
+
+pkgfmt = [
+ 'Package:',
+ 'Version:',
+ 'Essential:',
+ 'Installed-Size:',
+ 'Maintainer:',
+ 'Architecture:',
+ 'Replaces:',
+ 'Provides:',
+ 'Depends:',
+ 'Conflicts:',
+ 'Pre-Depends:',
+ 'Breaks:',
+ 'Homepage:',
+ 'Apport:',
+ 'Auto-Built-Package:',
+ 'Build-Ids',
+ 'Origin:',
+ 'Bugs:',
+ 'Built-Using:',
+ 'Enhances:',
+ 'Recommends:',
+ 'Description:',
+ 'Description-md5:',
+ 'Ghc-Package:',
+ 'Gstreamer-Decoders:',
+ 'Gstreamer-Elements:',
+ 'Gstreamer-Encoders:',
+ 'Gstreamer-Uri-Sinks:',
+ 'Gstreamer-Uri-Sources:',
+ 'Gstreamer-Version:',
+ 'Lua-Versions:',
+ 'Modaliases:',
+ 'Npp-Applications:',
+ 'Npp-Description:',
+ 'Npp-File:',
+ 'Npp-Mimetype:',
+ 'Npp-Name:',
+ 'Origin:',
+ 'Original-Maintainer:',
+ 'Original-Source-Maintainer:',
+ 'Package-Type:',
+ 'Postgresql-Version:',
+ 'Python-Version:',
+ 'Python-Versions:',
+ 'Ruby-Versions:',
+ 'Source:',
+ 'Suggests:',
+ 'Xul-Appid:',
+ 'Multi-Arch:',
+ 'Build-Essential:',
+ 'Tag:',
+ 'Section:',
+ 'Priority:',
+ 'Filename:',
+ 'Size:',
+ 'MD5sum:',
+ 'SHA1:',
+ 'SHA256:'
+]
diff --git a/lib/delta.py b/lib/delta.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python
+# copyright (c) 2017 - Ivan J. <parazyd@dyne.org>
+# see LICENSE file for copyright and license details
+
+import ast
+import gzip
+import re
+import requests
+import time
+
+import config
+from log import notice
+
+def getTime(date):
+ return time.mktime(time.strptime(date, "%a, %d %b %Y %H:%M:%S %Z"))
+
+def getDate(relfile):
+ match = re.search('Date: .+', relfile)
+ if match:
+ line = relfile[match.start():match.end()]
+ relfile = line.split(': ')[1]
+ return relfile
+
+
+def parseRel(reltext):
+ hash = {}
+ match = re.search('SHA256:+', reltext)
+ if match:
+ line = reltext[match.start():-1]
+ for i in line.split('\n'):
+ if i == 'SHA256:' or i == '\n': # XXX: hack
+ continue
+ hash[(i.split()[2])] = i.split()[0]
+ return hash
+
+
+def pkgParse(entry):
+ # for parsing a single package
+ values = re.split('\\n[A-Z].+?:', entry)[0:]
+ values[0] = values[0].split(':')[1]
+ keys = re.findall('\\n[A-Z].+?:', '\n'+entry)
+ both = zip(keys, values)
+ return {key.lstrip(): value for key, value in both}
+
+
+def parsePkgs(pkgtext):
+ # this parses our package file into a hashmap
+ # key: package name, value: entire package paragraph as a hashmap
+ map = {}
+
+ # TODO: consider also this approach
+ #def parsePkgs(pkgfilepath):
+ #with gzip.open(pkgfilepath, "rb") as f:
+ # pkgs = f.read().split("\n\n")
+
+ pkgs = pkgtext.split("\n\n")
+ for pkg in pkgs:
+ m = re.match('Package: .+', pkg)
+ if m:
+ line = pkg[m.start():m.end()]
+ key = line.split(': ')[1]
+ map[key] = pkgParse(pkg)
+ return map
+
+
+def printPkg(map, pkgname):
+ try:
+ pkg = ast.literal_eval(map[pkgname])
+ sin = []
+ for i in config.pkgfmt:
+ if config.pkgfmt[i] in pkg.keys():
+ sin.append(config.pkgfmt[i] + pkg[config.pkgfmt[i]])
+ return sin
+ except:
+ log.die("nonexistent package")
+
+
+def dictCompare(d1, d2):
+ d1_keys = set(d1.keys())
+ d2_keys = set(d2.keys())
+ intersect_keys = d1_keys.intersection(d2_keys)
+ modified = {o : (d1[o], d2[o]) for o in intersect_keys if d1[o] != d2[o]}
+ return modified
+
+
+def compareRel(oldrel, newrel):
+ r = requests.get(newrel)
+ new = r.text
+ with open(oldrel, "rb") as f:
+ old = f.read()
+
+ oldtime = getTime(getDate(old))
+ newtime = getTime(getDate(new))
+ if newtime > oldtime:
+ notice("Update available")
+ newhashes = parseRel(new)
+ oldhashes = parseRel(old)
+ changes = dictCompare(newhashes, oldhashes)
+ # k = pkg name, v = sha256
+ return changes
+
+
+#relmap = compareRel("../spool/dists/jessie/updates/Release", "http://security.debian.org/dists/jessie/updates/Release")
+#print relmap
+#for k,v in relmap.iteritems():
+# print(k)
diff --git a/lib/fs.py b/lib/fs.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+# copyright (c) 2017 - Ivan J. <parazyd@dyne.org>
+# see LICENSE file for copyright and license details
+
+import config
+
+def crawl():
+ paths = {}
+ for i in range(0, len(config.repos)):
+ repo = config.repos[i]["name"]
+ basepath = config.repos[i]["dists"]
+ sts = []
+ for j in config.suites:
+ for k in config.suites[j]:
+ if config.repos[i]["aliases"] == True:
+ if repo in config.aliases:
+ try:
+ suite = config.aliases[repo][k]
+ except:
+ if config.repos[i]["skipmissing"] == True:
+ continue
+ else:
+ suite = k
+ else:
+ suite = k
+ skips = [ "jessie-security", "ascii-security" ] ## XXX: HACK:
+ if repo == "DEBIAN" and suite in skips:
+ continue
+ sts.append(suite)
+ paths[repo] = sts
+ return paths
+
+#print(crawl())
diff --git a/lib/log.py b/lib/log.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+# copyright (c) 2017 - Ivan J. <parazyd@dyne.org>
+# see LICENSE file for copyright and license details
+
+import sys
+
+def die(msg):
+ print("\033[1;31m[E] %s\033[0m" % msg)
+ sys.exit(1)
+
+def notice(msg):
+ print("\033[1;32m(*) %s\033[0m" % msg)
+ return
+
+def warn(msg):
+ print("\033[1;33m[W] %s\033[0m" % msg)
+ return
+
+def cleanexit():
+ notice("exiting cleanly...")
+ sys.exit(0)
diff --git a/lib/net.py b/lib/net.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+# copyright (c) 2017 - Ivan J. <parazyd@dyne.org>
+# see LICENSE file for copyright and license details
+
+import requests
+
+import config
+from log import die, notice, warn, cleanexit
+
+
+def download(url, path):
+ print("\tdownloading: %s\n\tto: %s" % (url, path))
+ r = requests.get(url, stream=True)
+ if r.status_code == 404:
+ warn("not found!")
+ return
+ elif r.status_code != 200:
+ die("fail!")
+
+ with open(path, "wb") as f:
+ for chunk in r.iter_content(chunk_size=1024): # XXX: should be more on gbit servers
+ if chunk:
+ f.write(chunk)
+ #f.flush()
+ print("\033[1;32m . done\033[0m")
+ return
