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# git basics
## for beginner-level git users
notes:
- if you have questions ask them right away
- hand out cheat sheets later, no need to write stuff down
</section>
<section id="intro-objectives" data-markdown>
## objectives
- teach you to fish
- hands-on experience
- use version control!
- collaborate!
</section>
<section id="intro-about-me" data-markdown>
## about me
- scientific computing support @ idiv since 2014
- happy git user since 2010
> There will never be a better version control system than git.
>
> -- Christian Krause, Chemnitz 2017
</section>
<section id="intro-about-today" data-markdown>
## about today
be able to ...
1. use git in **ALL** your projects
2. collaborate with each other
... that is mission accomplished.
notes:
- there is time for fancy stuff later
- take a few weeks getting used to git
- delay is good to grow your own experience
- growing pain is how we learn
</section>
<section id="intro-you" data-markdown> ## about you
name, job, git experience, why git?
</section>
<section id="intro-about-git" data-markdown>
## about git
1. **records changes to a repository**
content, who, when, message
2. **best tool for the job**
technical, usability, community
notes:
- the fact that content is organized in files and directories is
only incidental
- for git to be useful, content has to be text
</section>
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<section>
<section id="motivation" data-markdown>
# motivation
> Why should I use git?
</section>
<section id="motivation-avoid-mess" data-markdown>
## motivation #1
### avoid mess
</section>
<section id="motivation-want-structure" data-markdown>
## motivation #1
### want structure
</section>
<section id="motivation-playground" data-markdown>
## motivation #2
### throw-away playgrounds
notes:
- test stuff without interfering
- throw away if garbage
- integrate if good
- switch back and forth
- (done right) decision based on regression testing
</section>
<section id="motivation-collaboration" data-markdown>
## motivation #3
### collaboration made easy
<!-- do not fix this typo -->
> This text cuntains a typo.
notes:
- demo GitLab
- [go to project](https://git.idiv.de/sc/edu/git-seminar)
- check if typo still in master - edit
- change **target branch** to create merge request
- commit message:
```
fixes typo
learn how to use a spell checker
```
</section>
<section id="motivation-creative-use" data-markdown>
## motivation #4
### the creative use of git award
#### goes to Michael Schilli
```yml
videos:
- id: '_3i5yVoTvCs'
title: 'How to flip German pancakes'
- id: 'brPfE66FC24'
title: 'Tivo Stream Cooling Fan Replacement'
```
```console
$ youtube-sync -i videos.yml
_3i5yVoTvCs: Unchanged
brPfE66FC24: Updated OK
```
source: [Linux Magazin](http://www.linux-magazin.de/) 2018/01
</section>
<section id="motivation-use-everywhere" data-markdown>
## motivation #e
### use version control for
# *everything*
| common | less frequent | esoteric? |
| ------------ |:---------------:| ---------------:|
| software | presentation | youtube |
| blog | paper / thesis | soundboard |
| user config | task management | drinking games |
notes:
- if it doesn't support git don't use it
</section>
<section id="motivation-automation" data-markdown>
## motivation #a
### automation
- software testing
- build app and deploy to app store
- put presentation on web server
*(see advanced seminar)*
</section>
</section>
<section>
<section id="start" data-markdown>
# let's get started
notes:
- git is simple and complex
- git seems complex for 2 reasons:
- you're unfamiliar with command line
- there are a lot of choices
- only X (TODO) theory pages
- I'm gonna dumb it down for you - aka we'll stick to the simple parts
</section>
<section id="cheatsheet" data-markdown>
# [cheat sheet](https://idiv-biodiversity.github.io/git-cheat-sheet/)
</section>
<section id="cli" data-markdown>
## command line
- Ellen Ripley uses command line
- Chuck Norris uses command line
</section>
<section id="os" data-markdown>
## os packages
**Linux:** bash and git
**Mac:** bash and git
**Windows:** cmder
</section>
<section id="setup" data-markdown>
## setup
```bash
# identity
git config --global user.name 'Jane Doe'
git config --global user.email 'jane.doe@feminism.org'
# colors
git config --global color.ui auto
# aliases
git config --global alias.unstage 'reset HEAD --'
git config --global alias.lol \
'log --graph --decorate --oneline --all'
```
</section>
<section id="demo" data-markdown>
## my project
demo
notes:
- git init hello
- README.md
- LICENSE
- TODO really talk about licenses? I should, because it's
important, but it takes time away from other things ...
- src/hello.py
</section>
</section>
<section id="webapps" data-markdown>
## web apps
- GitHub demo
- GitLab demo
</section>
<section id="eof" data-background="img/trex.png">
<h1>EOF</h1>
</section>
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