Aug
14
2010

luakit – fast, small, webkit based micro-browser extensible by lua

I’ve added ebuilds in Gentoo’s portage for a new webkit browser called luakit.

[I] www-client/luakit
Available versions: (~)2010.08.07 (~)2010.08.13 **9999
Homepage: http://www.luakit.org
Description: a webkit-gtk based, micro-browser framework in Lua

It is a webkit based, low footprint browser written in C and Lua, modeled after awesome wm, my favorite window manager ;)

Vim-like bindings, low memory usage, lua configuration file (if you use awesome you will feel at home) and rapid development are some of luakit‘s key points.

To try it out:

emerge -av luakit

(~testing only, so you have to keyword it if running stable)

For more information, visit the luakit website, or join #luakit (OFTC IRC network) :)

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posted in gentoo, luakit by Alex “wired” Alexander | 3 Comments

Jun
15
2010

nominated for the upcoming Gentoo Council Elections

I’m a nominee for the upcoming Gentoo Council (thanks Markos :)).

To help developers decide if they want to vote for me, I wrote a short manifesto. It follows:

swift. decisive. vigilant. for an even better Gentoo!

---

this year I've decided not to write a long, tiresome manifesto.
there is no point in making promises for things that may never even reach the
council's umbrella.

besides, in reality almost everything landing on the council's agenda is
dynamically decided by the developers a few days or weeks before meetings
and council members need to be swift, decisive and always vigilant to be able
to resolve things quickly and efficiently, even from the shadows, if possible.

these three words pretty much describe my "running for council" manifesto:

swift, decisive, vigilant.

Gentoo deserves nothing less ;)

---

who am I:

Alex Alexander, 26yo, currently working as a web developer.
Qt Project Lead, KDE Project Member, maintainer of various other packages.

--
wired
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posted in gentoo by Alex “wired” Alexander | 6 Comments

May
23
2010

Qt 4.7 beta 1 in qting-edge gentoo overlay

Qt 4.7 beta 1 is now available in the qting-edge overlay.

To install it, add the overlay (using layman or PORTDIR_OVERLAY) and unmask qt-4.7_beta1 by copying or linking the keywords file we provide in your /etc/portage/package.unmask/ folder.

ln -s /path/to/qting-edge/Documentation/package.keywords/qt-4.7 /etc/portage/package.unmask/

# IF YOU USE A package.unmask FILE, run the following INSTEAD
cat /path/to/qting-edge/Documentation/package.keywords/qt-4.7 >> /etc/portage/package.unmask

then update your world:

emerge -avDuN world

if you only want to update Qt, run

emerge -av1 $(eix -I --only-names x11-libs/qt-)

Please report any ebuild-related bugs you find in our bugzilla, prefixed with [qting-edge] in the summary!

Enjoy :)

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posted in gentoo by Alex “wired” Alexander | 2 Comments

May
05
2010

switching from gnu screen to tmux (updated)

update #1: upstream accepted my patch, so the next tmux release will provide window-status-alert-{attr,fg,bg} ;) Only difference is the use of alert instead of flagged. It sounds better anyway ;) I’ll adjust my patch on 1.2 as well :)

update #2 [2010/05/17]: uploaded my updated config file, now using ` as my prefix key

update #3 [2013/12/07]: a few things have changed in tmux the last few years, so I’ve uploaded my updated config :)

I gave tmux a try yesterday.

Clean config file, thorough documentation and a few nice touches here and there (i.e. better, persistent window splitting) make it a nice alternative to screen, but the biggest difference lies in memory usage. Screen can easily eat up to 40-50mb with just a few windows open, but tmux has yet to reach the 10mb mark!

You may argue that ram is cheap these days, but when you’re on a 360mb VPS ram matters ;)

I did find a few bugs/annoyances, for instance if you add set-option -g default-terminal “screen-256color” in your config file, tmux stops evaluating the #T variable.

I hacked my way out of this one by adding the following in my .bash_profile instead:

[[ $TERM == "screen" ]] && export -p TERM="screen-256color"

Turns out that’s not tmux’s fault but bash’s, I’ll have to create a patch for that as well :) If you have the same issue, you can use the above hack as a temporary fix.

Also version 1.2 does not provide a way for you to customize the colors used on window titles with alerts (either monitored or when the bell is active), but I patched that and sent it upstream ;)

You can find an ebuild with the patch in my overlay, wirelay (layman -a wirelay ;)).

The patch was accepted upstream so it’ll be in the next release.

My tmux looks like this:

and with some split panes:

finally, below is my (updated on 2013/12/07) tmux.conf config file, used in the above screenshots.

I decided to use ` as my prefix key, its really better than hitting ctrl-a all the time :P

# ` is an interesting key for a prefix
set-option -g prefix `
# set-option -g prefix C-a

 

unbind-key C-b
bind-key C-a last-window
bind-key ` last-window
bind-key a send-prefix

 

# we might need ` at some point, allow switching
# we can also send the prefix char with `-a
bind-key F11 set-option -g prefix C-a
bind-key F12 set-option -g prefix `

 

# 0 is too far from ` ;)
set -g base-index 1

 

# set-option -g default-terminal “screen-256color”
set-option -g mouse-select-pane on
set-option -g status-keys vi
set-option -g bell-action any
set-option -g set-titles on
set-option -g set-titles-string ‘#H:#S.#I.#P #W #T’ # window number,program name,active (or not)
set-option -g visual-bell off

 

setw -g mode-keys vi
setw -g mode-mouse on
setw -g monitor-activity on

 

bind e previous-window
bind f next-window
bind E swap-window -t -1
bind F swap-window -t +1
# bind j up-pane
# bind k down-pane

 

set-option -g status-utf8 on
# set-option -g status-justify centre
set-option -g status-justify left
set-option -g status-bg black
set-option -g status-fg white
set-option -g status-left-length 40
set-option -g status-right-length 80

 

set-option -g pane-active-border-fg green
set-option -g pane-active-border-bg black
set-option -g pane-border-fg white
set-option -g pane-border-bg black

 

set-option -g message-fg black
set-option -g message-bg green

 

#setw -g mode-bg black

 

setw -g window-status-bg black
setw -g window-status-current-fg green
setw -g window-status-bell-attr default
setw -g window-status-bell-fg red
setw -g window-status-content-attr default
setw -g window-status-content-fg yellow
setw -g window-status-activity-attr default
setw -g window-status-activity-fg yellow

 

set -g status-left ‘#[fg=red]#H#[fg=green]:#[fg=white]#S #[fg=green]][#[default]‘

 

set -g status-interval 5

set -g status-right ‘#[fg=green]][#[fg=white] #(tmux-mem-cpu-load 5 4) #[fg=green]][ #[fg=yellow]%H:%M#[default]‘

 

set -g history-limit 4096

bind r source-file ~/.tmux.conf

:)

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posted in general, gentoo by Alex “wired” Alexander | 46 Comments

May
04
2010

IMAP Spam Begone – remote email spam filtering using spamassassin

Do you need to filter spam email on your IMAP account, but can’t do it on the email server and your client software (mutt? ;)) won’t provide that capability?

meet IMAP Spam Begone

a nifty python script that uses spamassassin to remotely mark (and optionally move/delete) spam mail over IMAP.
it can also use spam/ham folders to teach your spamassassin ;)

Available in gentoo:
[*] mail-filter/isbg
Available versions: (~)0.99-r1
Homepage: http://redmine.ookook.fr/projects/isbg
Description: IMAP Spam Begone: a script that makes it easy to scan an IMAP inbox for spam using SpamAssassin

usage instructions here: http://redmine.ookook.fr/projects/isbg/wiki#SpamAssassin

some example commands I’m using:

# to check for spam:
isbg.py --imaphost [HOST] --imapuser [EMAIL] --delete --noreport --spamc
# to teach spamassassin:
isbg.py --imaphost [HOST] --imapuser [EMAIL] --noreport --teachonly --learnspambox INBOX.spam --learnhambox INBOX.read-mail --spamc

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posted in general, gentoo by Alex “wired” Alexander | 1 Comment

May
03
2010

linode.com, my new home

For the last few days, linuxized.com has been enjoying its new home, a linode.com VPS. Running Gentoo. Of-course ;)

A 24/7 remote box had been on my wish-list for some time and my shared-hosting 1-year contract was ending, when I discovered linode.com.

They give you a VPS and let you do anything you want with it. They also provide you with a control panel that lets you tweak pretty much everything.

So I bought the cheapest one (360), created some partitions and booted it using a bootable image they provide (something similar to systemrescuecd).

I then downloaded the latest stage3, configured the base system and booted it using a kernel provided by linode.

Instead of compiling anything on the VPS, I decided to use binary packages to speed things up.

I have a bunch of chroots on my home box, one of them being stable-x-less. I cloned it, adjusted the use flags a bit and rsync’d all the binpackages to the VPS.

Now everything works great and I have a bunch of services running (http,email,znc,nagios,etc) ;)

Linode++ for the excellent service they provide ;)

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posted in gentoo by Alex “wired” Alexander | 2 Comments

Feb
01
2010

FOSDEM 2010 :)

This year’s FOSDEM is just around the corner! (February 6th/7th, Brussels, Belgium)

A lot of interesting talks and presentations will take place and I’m pretty sure there’s going to be a lot of beer too! ^_^

Many Gentoo Developers will be there for the whole weekend, including me :)

See you all there :D

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posted in gentoo by Alex “wired” Alexander | 1 Comment

Dec
05
2009

how-to: migrating your passwords from firefox to uzbl’s formfiller

update 2009-11-07: fixed bug in script

uzbl has a simple but nice formfiller script that automatically fills forms for you.

if you’ve been using firefox’s password manager, you probably have a large list of user details you’d probably like to use in uzbl too. migrating the data is actually simpler than you think.

first, install the Password Exporter add-on in your firefox.

then go to edit->preferences->security->import/export passwords, click export passwords (do NOT check the checkbox), select csv in the bottom right select box and save the file in your ${HOME}.

you should now have a file called password-export-`date +%Y-%m-%d` (current date ;)) in your ~ folder.

now open a terminal and run the following:

cat ~/password-export-`date +%Y-%m-%d` | grep "^\"http" | while read i; do S=`echo $i | cut -d"\"" -f2`; S="${S/http:\/\/}"; S="${S/https:\/\/}"; U=`echo $i | cut -d"\"" -f4`; P=`echo $i | cut -d"\"" -f6`; UF=`echo $i | cut -d"\"" -f12`; PF=`echo $i | cut -d"\"" -f14`; echo $UF: $U | sed "s/\@/\\\@/g" > ~/.local/share/uzbl/forms/$S; echo $PF: $P | sed "s/\@/\\\@/g" >> ~/.local/share/uzbl/forms/$S; done

note that the above command will overwrite any existing domains.
the command below are slightly modified to only add non-existing domains:

cat ~/password-export-`date +%Y-%m-%d` | grep "^\"http" | while read i; do S=`echo $i | cut -d"\"" -f2`; S="${S/http:\/\/}"; S="${S/https:\/\/}"; U=`echo $i | cut -d"\"" -f4`; P=`echo $i | cut -d"\"" -f6`; UF=`echo $i | cut -d"\"" -f12`; PF=`echo $i | cut -d"\"" -f14`; echo $UF: $U | sed "s/\@/\\\@/g" >> ~/.local/share/uzbl/forms/$S; [[ ! -f ~/.local/share/uzbl/forms/$S ]] && echo $PF: $P | sed "s/\@/\\\@/g" >> ~/.local/share/uzbl/forms/$S; done

that’s it! you should have a file per domain with the necessary info in ~/.local/share/uzbl/forms

ls ~/.local/share/uzbl/forms/

open a uzbl instance, visit a site with a form and press zl [default binding] to tell formfiller to fill in the form for you :)

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posted in uzbl by Alex “wired” Alexander | 6 Comments

Dec
05
2009

uzbl – a terminal for the web – in gentoo :)

I’ve been using firefox for too long.

Its excellent vimperator extension has prevented me from switching to anything else, but it is beginning to show its age. Slow loading times, occasional crashes, horrible JS performance…

Meet uzbl. Wordplay for usable. Its developers describe it as web interface tools which adhere to the unix philosophy. I like to think of it as a terminal for the web.

I have valid reasons: Instead of using tabs, I just spawn uzbl windows whenever I need something, then close them. Same as a terminal. That is possible because it loads instantly – like a terminal! Add the fully customizable vim-like bindings and very good webkit engine and you have a winner!

The fact that I’m using awesome (a tiling wm) also helps, since it manages all the windows for me.

Since I like uzbl so much, I added it to the portage tree:

[I] www-client/uzbl
Available versions: (~)0_pre20091130{tbz2} **9999{tbz2} {helpers}
Installed versions: 0_pre20091130{tbz2}(04:03:14 PM 12/04/2009)(helpers)
Homepage: http://www.uzbl.org
Description: A keyboard controlled (modal vim-like bindings, or with modifierkeys) browser based on Webkit

One tagged release and a live ebuild (that uses either the master or experimental branch).

I’ve also patched dmenu with the vertical patch to make it useful with uzbl. You can find the updated ebuild in wirelay (layman -a wirelay) – at least until I get the dmenu maintainers to add the patch in portage.

:)

uzbl
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posted in gentoo, uzbl by Alex “wired” Alexander | 33 Comments

Dec
02
2009

kde-testing overlay *renamed* – qt and kde status in gentoo

Today we renamed kde-testing back to kde in layman. You should remove and add the overlay again:

layman -d kde-testing; layman -L; layman -a kde;

In other news,

Qt 4.6.0 final was released by Nokia yesterday. You’ll find ebuilds in portage’s ~testing. If you’re using stable and want to try it out, make sure you keyword ALL the ebuilds, or you might get ugly blocks :) A keyword file is available in qting-edge.

Upgrading world is the recommended way to go to avoid B blocks. If you don’t want to upgrade world, make sure your upgrade command includes all installed Qt modules or you will get blocks.

emerge -av1 $(qlist -IC x11-libs/qt\-)

Remember that “b” (lowercase b) blocks are automatically resolved by portage, just remove --pretend and proceed with the upgrade.

For those wondering, KDE 4 works fine with Qt 4.6 :)

If you’re upgrading Qt from a previous version and your Qt apps misbehave, you should rebuild everything depending on Qt:

emerge -av1 $(for i in $(qlist -IC x11-libs/qt-); do equery -q d $i | grep -v 'x11-libs/qt-' | sed "s/^/=/"; done)

KDE 4.3.4 was also released yesterday, ebuilds are available in portage as usual :)

Lots of stuff to build, have fun!

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posted in gentoo by Alex “wired” Alexander | 9 Comments

 
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