Baptiste Mathus batmat

Deliver software quickly and on a regular basis? Adapt to change? All that by hands?

In this session, I’ll explain how we went from a simple Hudson with some jobs a few years ago, to a complete software factory around Jenkins with several hundreds jobs today (Continuous Integration, Continuous Inspection…).

I’ll give feedback on things that didn’t work, and things that work. Why and how put developers in control of their jobs. Tips & tricks to manage all that.

Finally, we’ll see ongoing and upcoming work designed to provide even more "Agility" to all that: job versioning, using Docker for reproducibility and auto-scaling, etc.

KDE 5 (Plasma) issues

Wildly unstable

Goes without saying, anything below was working fine with KDE4.

Autostart

Autostart apps configured for .kde4 previously are now just ignored. The format totally changed: from simple symlink before, you now have to create a still simple but far more complex than before file and put it elsewhere so that KDE5 starts your app.

List of tips to cover

Refactoring: Extract method?
Typing: automatically place semicolons
Typing: escape text when pasting into a string literal
Do not always remember the shortcuts? Find any option with Ctrl-Shift-3
Organize imports: how to ignore javadoc
Formatter: don’t touch my manually wrapped lines!
Formatter: don’t touch that part (using begin/end tags). Thx Emmanuel Fontan)

Keybase proof

I hereby claim:

I am batmat on github.
I am bmathus (https://keybase.io/bmathus) on keybase.
I have a public key whose fingerprint is 7207 4617 7725 A892 07A7 075B FD5D EA07 FCB6 90A8

To claim this, I am signing this object:

	# Quick & Dirty way to generate data for number of plugins per month
	# after the .svg of installations per plugins available under stats.jenkinsci.org

	# Get all the files
	for year in $(seq 2007 2015)
	do
	for month in $(seq -w 1 12)
	do
	wget "http://stats.jenkins-ci.org/jenkins-stats/svg/$year$month-plugins.svg"
	done

	#!/bin/bash
	set -eou pipefail

	COUNT=5
	SIZE_IN_MB=500

	while [[ $COUNT > 0 ]]; do
	sudo du -sm /var/lib/docker
	docker run -v /pouet debian fallocate -l ${SIZE_IN_MB}M /pouet/test.img
	COUNT=$(( $COUNT - 1 ))

	sonarqube:
	image: sonarqube:5.1.1
	ports:
	- "9000:9000"
	- "3306:3306"
	environment:
	- SONARQUBE_JDBC_USERNAME=sonar
	- SONARQUBE_JDBC_PASSWORD=sonar
	- SONARQUBE_JDBC_URL=jdbc:mysql://localhost:3306/sonar?useUnicode=true&characterEncoding=utf8&rewriteBatchedStatements=true

	package xxxxx.utils;

	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.HashMap;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Map;
	import java.util.Set;

	// Legacy style
	@SomeAnnotations({
	@SomeAnnotation(..a..),
	@SomeAnnotation(..b..),
	@SomeAnnotation(..c..),
	})
	public class SomeClass {
	...
	}

	[alias]
	backup = "!f(){ git add -A . && git ci -q -m \"WIP backup\" && commit=`git show HEAD\|head -1` && git reset HEAD~ && echo \"Backup OK: $commit (or use git reflog)\"; };f"