Arch Linux, Mplayer, and Chromium Sound Problem

This post is just a reminder whenever one day I get the same problem: no sound in browser (in this case: Chromium) while the sound is normal using mplayer (or any other command line player). Some configurations: $HOME/.asoundrc # Use PulseAudio by defaultpcm.!default {  type pulse  fallback "sysdefault"  hint {    show on    description "Default ALSA Output (currently...

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Posted in alsa, Arch Linux, MPlayer, pulseaudi, sound

Multiple Go versions in Linux

Currently, there are trends on software development that tend to release their SDK on regular basis. Rust for example, also Go with 6 month release cycle. This predictable release is good and I personally like it since I can predict on features availability and use them for my software development project. The downside of this approach is there are many versions availablle...

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Posted in Arch Linux, Bash, Go, linux

Supervisor Dengan Multiple Workers pada Elixir

Beberapa hari ini saya mencoba otak atik Elixir setelah sekian lama mengamati. Untuk yang sudah terbiasa dengan Erlang, barangkali menyesuaikan diri tidak akan terlalu sulit, sementara bagi yang belum pernah mengenal Erlang, konsep let it crash dari Erlang untuk fault tolerant systems perlu proses pembelajaran yang lumayan. Konsep supervisor tree untuk proses di Elixir tidak ada hubungannya dengan...

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Posted in Child Process, Elixir, OTP, Supervisor, Workers

Swift in Arch Linux

Following its open source release, Swift can be downloaded at http://www.swift.org. I am lucky enough to see that there is Linux version available for download. The binary version was developed in Ubuntu, so I tried to grab the binary release and then have them installed to no luck. It was some problems with some libraries: libpanel (from ncurses5), libedit.so.2 and libicuuc. Being a bleeding edge...

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Posted in Arch Linux, Swift

ArangoDB for Arch Linux - Binary Version Without Manual Compilation (AUR)

I was once the maintainer of ArangoDB package in AUR. While the package was fine (I think), I am quite tired of having it compiled myself. It's just I am getting older, I guess. Then I prefer binary version after leaving maintainer role. Now I can use it using RPM file of OpenSuSE Factory version - available from ArangoDB download page. Some tweaks are needed anyway. I will give you some tweaks...

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Posted in ArangoDB, Arch Linux

Atom for 32bit Arch Linux (or other Linux 32bit distros)

Actually, there's a package in AUR (https://aur.archlinux.org/packages/atom-editor/) but I am too lazy to compile it myself, so here it goes. Atom is available in binary releases for 64bit only for Linux. Luckily, WebUpd8 team provides binary packages for 64bit and 32bit Ubuntu. Get the package here: https://launchpad.net/~webupd8team/+archive/ubuntu/atom/+packages. For this article, I downloaded...

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Posted in Arch Linux, Atom, IDE, JavaScript

Setting Printer Network HP LaserJet P2035n di Arch Linux

Install paket: hplip dan cups Aktifkan CUPS dengan menjalankan daemon: # cupsd Install driver HP. Siapkan file ppd (hp-laserjet_p2035n-hpijs-pcl3.ppd), diperoleh di /usr/share/ppd/HP/hp-laserjet_p2035n-hpijs-pcl3.ppd.gz. Ekstrak file tersebut di suatu lokasi, setting permission access ke user. Untuk kasus ini, saya meletakkan file tersebut di /home/bpdp/ppd/hp-laserjet_p2035n-hpijs-pcl3.ppd....

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Mengakses Engine Prolog (tuProlog) dari Scala

Prolog merupakan bahasa pemrograman komputer generasi awal, dibuat oleh Alain Colmerauer pada sekitar awal tahun 1970-an dan dikembangkan oleh Alain bersama dengan Phillipe Roussel pada tahun 1972. Prolog pada awalnya memang dikembangkan untuk aplikasi AI (Artificial Intelligence) dengan kekhususan pada formalisme linguistik. Prolog banyak digunakan pada berbagai universitas dan pendidikan tinggi...

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Posted in Java, Prolog, Scala, tuProlog

Maven repository priority in Gradle

If you get an error like this when you execute gradle build, it means that there is something wrong with your maven repository priority (just an example): Checksum missing at http://www.systap.com/maven/releases/org/semanticweb/yars/nxparser/1.2.3/nxparser-1.2.3.pom.sha1 due to: For input string: "<!" Download http://www.systap.com/maven/releases/org/semanticweb/yars/nxparser/1.2.3/nxparser-1.2.3.pom [Fatal...

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Posted in Gradle, Java, Maven

Gradle Untuk Mengelola Repo Lokal Maven

Saat pertama kali menggunakan Gradle, saya cukup kerepotan mempelajari tool ini karena dokumentasinya lebih mirip dengan manual. Tantangan yang pertama saya peroleh adalah menggunakan repository maven di komputer saya karena kadang kala software yang saya kembangkan berupa API (Application Programming Interface). Keinginan saya sederhana: Develop pustaka (API) Kompilasi dan build API dalam format...

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Posted in Gradle, Java, Maven