1. Connect Firefox OS device to Arch Linux

    Introduction

    Firefox OS, what is that? If it’s your question, this article is probably not for you. You may take some information on Wikipedia.

    Now, you know. So, Firefox OS (or Boot2Gecko or B2G) is developed in HTML5 (by HTML5, I mean HTML5+CSS3+ECMAScript/JS). This is a …

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  2. Transform portrait to squared image by filling

    Introduction

    This is my problem. I have a photo (portrait.png).

    Portrait

    From this photo, I need a squared image. However, taking the largest possible croping, this is what I can get.

    Portrait cropped

    Of course, I don’t want the face to be cropped like this. The following article is presented one …

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  3. Display notifications with IRSSI

    Introduction

    Since a few months now, I used irssi as my IRC client. I like it because it is highly configurable and because it’s CLI. However, one thing is a bit annoying about irssi: it has no notifications when somebody talk to me. Either it is some ping on …

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  4. Patch a dependency of Maven

    Introduction

    The other day, I was using a XWiki instance to make some crazy things (using XWiki in a way that is not the default). My point was to use the functionalities of creating subwikis. No specific configuration of XWiki after that point: Apache Tomcat v7.0.47, HSQLDB (embedded …

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  5. Get information from a XWiki database

    Introduction

    It is really a problem when in a file you have characters displayed as something like ^@ or <E5>. Indeed, yesterday, my XWiki (installed in local on my computer) has been crashed by a computer freeze. I hardly reboot my computer and never been able to start the wiki after …

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  6. Stress test XWiki for subwikis creations

    Introduction

    I need to know how many subwikis can XWiki support without freezing or crashing. I prepared some kind of stress test (note that I’m not familiar with these kind of things) in order to massively create subwikis into a XWiki instance. By massively, I mean 1000 which seems …

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  7. Using `sed` to add new lines

    Introduction

    sed is a powerful tool to edit files line by line. However, when you try to manipulate more than one line at a time, it becomes more difficult to create sed commands.

    The point of this article is to find a pattern in a file and, when this pattern …

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  8. Problem with suspend on Linux

    Introduction

    The suspend can be achieved with the power button (default configuration on GNOME 3) or with the Fn+F1 shortcut. After a fresh installation of Arch Linux, it worked but since few days, it does not resume well.

    The symptoms: the computer (ASUS N750JV) is suspend and when resume …

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  9. Fix a problem with fonts in web browser

    The problem

    In your browser, you may have problems on some websites displaying strange fonts. For example, you may have seen the following fonts on Github.

    Font problem in web browser

    This problem is due to bitmap font.

    Solution

    To deactivate bitmap fonts, you can use existing font configuration files you can find into /etc …

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