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Alessandro Menti 08-17-2012 08:45 AM

To fix a typo.
Il 17/08/2012 07:02, John Kim ha scritto:


I'm a new contributor to motu, ready to fix a typo in a package.

There is a typo error <> in the package
Notice that suggests has 8.5, though the "suggested for increased
functionality" has 8.4. I want to fix this typo.

Using BugFixingInitiatives as my guide, I see two ways to tackle this.

1. Fix the typo within the terminal. What was the tool that allows text
editing directly within the terminal.
2. "Edit the control file" - The control file from the latest Pidgin
package shows this <> for
libpurple0. The two files are different. What and how should I edit?

Thanks very much. Some guidance will be very much appreciated.

Hi John,
you should definitely edit the control file (the first paste you
mentioned is the "real" file, autogenerated from the second one, so you
should edit the latter).

To fix the bug, follow these steps (I'm referring to [1], read that page
for further details, ask here on the list or join #ubuntu-motu on IRC).

1) First, check if the bug is present in the development version of
Ubuntu (Quantal). In this case, if you go to [2], download the file
"pidgin_2.10.6-0ubuntu1.debian.tar.gz" (the part containing the control
files), decompress it and open debian/control, you can see the problem
is still there, so we need to check if it occurs in Debian as well.
2) If you repeat the same process as above, this time going to [3], you
will notice that the bug has been fixed in Debian. Therefore, you'll
need only to prepare the patch for Ubuntu.
3) From [2] we can see that the source package for libpurple0 is
"pidgin", so we get a copy of the latest source in Ubuntu by opening a
terminal and typing:

sudo apt-get install bzr bzr-builddeb
bzr whoami "John Kim <>"
bzr launchpad-login launchpad-login-id # Edit with your Launchpad ID
bzr branch lp:ubuntu/pidgin
bzr branch pidgin pidgin.fix-12345
(where "12345" is the bug number in Launchpad; if there's no bug report
for this typo, open a new one and set its status to "Confirmed" first).
4) cd into pidgin.fix-12345. There, edit debian/control with a text
editor and replace the " * tcl8.4, tk8.4:" line under the section for
the libpurple0 package.
5) Type the following commands in the terminal to edit the changelog for
the package:

export DEBEMAIL=""
export DEBFULLNAME="John Kim"
dch -i
A text editor will open (usually nano) - insert an appropriate changelog
message detailing your work, save and close (if you're on nano, pressing
Ctrl+X followed by Y and Enter will do the "exit and save" thing).
Make sure you mention the bug number in the changelog: appending "(LP:
#12345)" at the end of the message will do.
6) Run "debcommit" to commit the changes to the branch you created.
debcommit will prepare a patch for your changes and ask you to "tag" it,
that is, to add relevant information about it. Just follow the instructions.
7) Make sure you have added an SSH key to your Launchpad account and
then push the changes:

bzr push lp:~launchpad-login-id/ubuntu/quantal/pidgin/fix-for-12345
bzr lp-open
8) Click on "Propose for merging into another branch" and choose
"lp:ubuntu/pidgin" as the other branch.
9) If you can't directly upload to the Ubuntu branches, seek sponsorship
by opening the bug report, clicking on "Subscribe someone else" on the
right and subscribing "ubuntu-sponsors".

This will merge your fix into the current development version of Ubuntu.
As this bug is a simple typo, your fix will (most probably) be included
in the stable version only among other important ones; I personally
think the best way to do that would be to wait for a security fix for
Pidgin to appear and to contact the person in charge for fixing in
private, but I'd like to hear other opinions from the members of this
list as well. (The process is very similar and detailed at [4]).

Hope this helps,
Alessandro Menti

A neutron walks into a bar and asks how much for a drink.
The bartender replies "for you, no charge".
-- Sheldon Cooper, The Big Bang Theory

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