Martin Pitt

addicted to Ubuntu development

Artikel getaggt mit script

lpshell – convenient launchpadlib script

Jan 12

Gepostet von pitti in ubuntu | 7 Kommentare

These days I often use launchpadlib in my projects for scripting access/modifications in Launchpad. While launchpadlib has quite a good API documentation, this only covers the method calls, not the attributes or collections. So it often takes some poking and trying until you figure out how to access/change things.

I found myself typing the same things over and over, so I finally wrote a little script called lpshell:

#!/usr/bin/python -i
import code, os, sys
from launchpadlib.launchpad import Launchpad, STAGING_SERVICE_ROOT, EDGE_SERVICE_ROOT
lp = Launchpad.login_with('test', STAGING_SERVICE_ROOT)

This logs into Launchpad and gives you an interactive Python shell with an “lp” object:

$ lpshell
>>> lp.bugs[439482].duplicate_of

Update: I committed this to ubuntu-dev-tools now, renamed to lp-shell for consistency with the other lp-* commands.

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Automated release tarball upload to Launchpad

Sep 5

Gepostet von pitti in ubuntu | 9 Kommentare

I often do upstream releases of my upstream projects that I do on Launchpad, mostly for Apport and jockey. But doing this has been quite tedious until now: You have to go to the project page, pick the series (usually “trunk”), create a new release, create a new milestone along the way, then go to “add download file”, and upload your .tar.gz and .tar.gz.asc.

Because this is rather inconvenient, I don’t do as many upstream releases as I should. But thanks to our tireless launchpadlib developers it is now possible to automate all that, so I wrote a new script lp-project-upload which does all that in a simple command:

  $ lp-project-upload apport 1.8.2 apport-1.8.2.tar.gz
  Release 1.8.2 could not be found for project. Create it? (Y/n) y

The script is based on Brad Crittenden’s recipe for uploading project files, and I added the creation of milestones and releases.

The script is contained in current Karmic’s ubuntu-dev-tools package now. Enjoy, and of course feel free to extend it for changelogs, release notes, etc.

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Easier testing for Apport bug patterns

Mai 28

Gepostet von pitti in ubuntu | 1 Kommentar

This morning I added a test script to the Apport bug patterns.

This finally allows you to reliably test a new bug pattern before you actually
commit/push it. You can invoke it with either a .crash file, or a Launchpad bug
number:


$ ./test-local 122988
Matched bug pattern: https://launchpad.net/bugs/122637
$ ./test-local /var/crash/_bin_bash.1000.crash
No match

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Presentations of shell commands

Apr 5

Gepostet von pitti in ubuntu | 4 Kommentare

Today I was sitting in the plane from Dresden to San Francisco, and worked on my DKMS demo for the Linux Foundation summit. DKMS is a command line tool for managing device driver packages.

I wondered how to present this. The commands and features I wanted to show are quite complex, and typing all of them during the presentation is too cumbersome. Besides, I’m just a lousy typer when someone else is watching. On the other hand, pasting them into classical slides is too static; I find it much easier to understand something that reveals itself step by step.

So what I needed is to prepare the chain of commands in advance, and then send them through an interactive “step by step” interpreter. A quick apt-cache search did not reveal any readymade solution, thus I hacked together a small script “shellpresent” which does exactly that:

  • a line with a command gets echoed, then it waits for a keypress, then runs the command and waits for another keypress (so that you can explain the output)
  • a comment line starting with # is printed in green, and doesn’t wait for a keypress
  • a blank line clears the screen
  • commands are prepended by a red “$” sign to indicate a command prompt

It now does exactly what I want. Perhaps it is useful for someone else out there as well.

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