Constellations on i: Orion, Git, and RPG - Gateway/400€¦ · Constellations on i: Orion, Git, and...

12/8/2016

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Welcome to the Waitless World

© 2015 IBM Corporation

Constellations on i: Orion, Git, and RPG

Jesse Gorzinski

[email protected]

Business Architect


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Git – what is it?

• Linus Torvalds – inventor of Linux wanted a better source control system – so

he wrote one

• Very popular in the open source community and increasingly in enterprises

• Distributed Version Control System

• Some distinctives

• NOT a server! Just a simple executable

• Stores all of its meta data in one .git directory at the root of your

repository

• Very fast !

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Snapshots, Not Differences -> Nearly every operation

local -> FAST!!

From https://git-scm.com/book/en/v2/Getting-Started-Git-Basics

Other VCS store deltas from the

original

Git stores full copies (links, compressed)

Everyone has a full repository

Nearly every operation is local

Full redundancy with all other

repositories


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Small & Fast!

source: https://git-scm.com/about/small-and-fast

https://git-scm.com/book/en/v2/Getting-Started-Git-Basics

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High-level flow


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Staging area?

• Before the commit, files get "staged"

• Why?

– Commit only one of several changed files

– Commit only a portion of a changed file!

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Hash codes

• All content is check-summed into a SHA-1 hash code

• From then on the file is referred to by that hash code

• Probability of collision is very small ~ # of sand grains on earth

• => the content is tracked so empty directories are not

• Commits are also referred to by a hash code


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Branching and Merging

image source= https://git-scm.com/about

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Cherry-picking

source: https://git-scm.com/book/en/v2/Distributed-Git-Maintaining-a-Project


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Cherry-picking

source: https://git-scm.com/book/en/v2/Distributed-Git-Maintaining-a-Project

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Git hooks

• To install a git hook, just put an executable file in the hooks directory

• The name of the file is the hook

• Example, to install a post-receive hook, do this from the .git/hooks directory

(depending on how you created the repository, the hooks directory may need

to be created)

• Then, populate the file with the commands needed


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git hooks (https://git-scm.com/docs/githooks)

• applypatch-msg

• pre-applypatch

• post-applypatch

• pre-commit

• prepare-commit-msg

• commit-msg

• post-commit

• pre-rebase

• post-checkout

• post-merge

• pre-push

• pre-receive

• update

• post-receive

• post-update

• push-to-checkout

• pre-auto-gc

• post-rewrite

• rebase

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Git hook example


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bit.ly/5733sc1-op1 - 5733SC1 instructions

ssh-keygen contained in 5733SC1 IBM Portable Utilities for i5/OS

*BASE & Option 1

$ ssh-keygen$ ls ~/.sshauthorized_keys id_rsa id_rsa.pub known_hosts

ssh-keygen creates necessary files

Copy/paste id_rsa.pub into GitHub/Bitbucket web interface

$ cat ~/.ssh/id_rsa.pubssh-rsa AAAABxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxpomIpqNexxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxLUMp4zhi4BqGHIl [email protected]

To communicate with repository via SSH, you need to give them

your public SSH key for password-less authentication.

SSH

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Where can I get Git?

• Can download to your PC

• Can add to your Eclipse

• Can use http://github.org right now and have it hosted in the cloud

• this how a lot of open source is developed

• Or ……

• Install it on your IBM i !

• 5733-OPS option 6

• And then install PTF

• Coming soon

• Follow DeveloperWork Page on 5733OPS


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Orion

Powerful

Web Editor

- Supports

open source

languages

AND free form

RPG

Zero install – runs in the browser – on any platform –

cheaper, easier than SEU

Compact

Git UI

- Strong git

source

control

support in

elegant and

powerful

single page

layout

Versatile theming – editor can be light, dark – by customization

or importing themes

http://github.org/

https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/IBM%20i%20Technology%20Updates/page/Open%20Source%20Technologies

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Free form RPG in Orion!


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• Aaron Bartell published an article just recently on Orion/RPG

• He told me that he had the most screen caps in any article he has ever

written

• Detailed scenario of how to develop in RPG using Orion

Industry pundits have already published articles

http://www.mcpressonline.com/rpg/techtip-shoot-for-orion-with-your-rpg.html

http://www.mcpressonline.com/rpg/techtip-shoot-for-orion-with-your-rpg.html

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Think through the implications of editing RPG in a

browser

• You can now edit RPG on any device that has a browser

• Windows

• Linux

• Mac

• Tablet

• Phone

• Etc.

• It requires no installation per user


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Orion - Language Support

• First class editor support for

• JavaScript

• HTML

• CSS

• Basic editing for

• Free form RPG

• Python

• PHP

• C/C++

• Ruby

• Etc.

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Orion is actively being developed – key part of IBM’s

strategic BlueMix


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Where can I get Orion?

• See https://wiki.eclipse.org/Orion

• Can download to your PC

• Can use http://orionhub.org right now and have it hosted in the

cloud

• Or ……

• Install it on your IBM i !

• 5733-OPS option 8

• And then install PTF

• Coming soon

• Follow DeveloperWork Page on 5733OPS

• Only this version supports free form RPG

https://wiki.eclipse.org/Orion

http://orionhub.org/

https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/IBM%20i%20Technology%20Updates/page/Open%20Source%20Technologies

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RDi and Git

• Eclipse has a free extension to support

Git called EGit

• Anyone with Eclipse can install it from

the Help->Eclipse Marketplace…

• If you have RDi Java Modernization

Edition – it is an optional component


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Think through the implications of Orion + Git

Here's a scenario:

Jesse is travelling. He's at the airport and just has a tablet and his

phone. He receives an urgent call from Edmund that there's a

bug in his code and Sam's pay is incorrect. He logs onto Orion,

fixes the bug, and pushes the change back to Git. Back at the

office, Edmund fetches the change from Git into an i Project in

RDi and recompiles the program. Sam's pay is fixed and the

problem didn't have to wait until Jesse returned from his trip.

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Edit RPG to change Sam’s pay – original pay 50000.99


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Sam’s pay is edited – now 50000.33

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Git view to commit the change


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Push change using Git

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Change is now in the Git repository history


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Fetch from Git into RDi

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Change made in tablet is now in RDi iProject where it can be built and run!


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Demo

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IBM i and BlueMix

Jesse R. Gorzinski, MBA

[email protected]

IBM i Emerging Solutions



What is BlueMix?

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What is CloudFoundry?

https://www.ibm.com/developerworks/cloud/library/cl-bluemixfoundry/

• Open source platform as a service (PaaS) that lets you quickly create and

deploy applications on the cloud.

• It abstracts the underlying infrastructure needed to run a cloud

• Developers and organizations can choose:

– Development Frameworks: Cloud Foundry supports Java™ code,

Spring, Ruby, Node.js, Python, and custom frameworks.

– Application Services: Cloud Foundry offers support for MySQL,

MongoDB, PostgreSQL, Redis, RabbitMQ, and custom services.

– Clouds: Developers and organizations can choose to run Cloud Foundry

in Public, Private, VMWare and OpenStack-based clouds.


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What is Bluemix?

https://www.ibm.com/developerworks/cloud/library/cl-bluemixfoundry/

• Bluemix is an implementation of IBM's Open Cloud Architecture, based on

Cloud Foundry

• Enables you to rapidly create, deploy, and manage your cloud applications.

• Because Bluemix is based on Cloud Foundry, you can tap into a growing

ecosystem of runtime frameworks and services, from both IBM and the

community

• Bluemix provides a dashboard for you to create, view, and manage your

applications and services as well as monitor your application's resource usage.

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IBM i and Bluemix –Speaking the same language!


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Bluemix runtimes

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Bluemix runtimes

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IBM i and Bluemix – Usage scenarios

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How can I use BlueMix with IBM i?

• At a high level, Bluemix offers a complete development and hosting solution.

• This can be broken down into:

– A development environment

– Language runtime

• IBM i is used as the back-end (system of record) at runtime

• So, we have several options for utilizing BlueMix!


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Four use cases

Non-Bluemix Bluemix

development

Bluemix

front-end

Bluemix dev

+ front-end

Development

front-end

(Systems of

Engagement)

back-end

(Systems of

Record)

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BlueMix development

Non-Bluemix Bluemix

development

Bluemix

front-end

Bluemix dev

+ front-end

Development

front-end

(Systems of

Engagement)

back-end

(Systems of

Record)


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BlueMix development

• Develop your application using BlueMix

• When you want to deploy, move code to IBM i

• IBM i runs both the front-end and back-end code

• Advantages:

– Robust development environment of BlueMix

– All code is ultimately deployed and running on IBM i

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BlueMix front-end

Non-Bluemix Bluemix

development

Bluemix

front-end

Bluemix dev

+ front-end

Development

front-end

(Systems of

Engagement)

back-end

(Systems of

Record)


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BlueMix front-end

• Develop your application on IBM i

• When you want to deploy, move code to BlueMix

• BlueMix runs the front-end, IBM i runs the back-end code

• Advantages:

– No need to manage web server, etc. All handled by BlueMix

– Only IBM i setup needed is XMLSERVICE

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BlueMix development and front-end

Non-Bluemix Bluemix

development

Bluemix

front-end

Bluemix dev

+ front-end

Development

front-end

(Systems of

Engagement)

back-end

(Systems of

Record)


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BlueMix development and front-end

• Develop your application using BlueMix

• When you want to deploy, move code to IBM i

• IBM i runs both the front-end and back-end code

• Advantages:

– Robust development environment of BlueMix

– No need to manage web server, etc. All handled by BlueMix

– Only IBM i setup needed is XMLSERVICE

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How to connect to IBM i from BlueMix

• Four ways (at least)

1. XMLSERVICE

2. MySQL

3. DB2 Connect

4. Web Services


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Connect to IBM i via XMLService

• Works for Node.JS, PHP, Python, Ruby

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Connect to IBM i with MySQL

• Bluemix languages have connectors for MySQL

• Bluemix services include MySQL

• MySQL server available on IBM i via Zend DBi offering


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Connect to IBM i with DB2 Connect (ibm_db/ibm_db2)

• Integrated with services available in Bluemix

• Requires separate licensing

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Eclipse Orion – Gateway to BlueMix?


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What is Eclipse Orion?

• Eclipse Orion is a web-based IDE

• Rich git integration

• Soon to be shipped with 5733OPS

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Eclipse Orion – Deploy to BlueMix!

• Can develop application in Orion (IBM i, Windows, Linux, other) and deploy to

BlueMix!

• Publicly documented here:

http://www.eclipse.org/community/eclipse_newsletter/2015/april/article2.php



Thank you!

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5757

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