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......@@ -10,7 +10,7 @@ intro
## motivation #1
![](img/draft_mess_half_size.png)
![](img/motivation-draft-mess-half-size.png)
## motivation #2
......
rdm.html 0 → 100644
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<!DOCTYPE html>
<html>
<head>
<title>git@rdm</title>
<link rel="stylesheet" href="reveal.js/dist/reveal.css">
<link rel="stylesheet" href="reveal.js/dist/theme/black.css">
<link rel="stylesheet" href="css/company-logo.css" />
<link rel="stylesheet" href="css/ribbon.css" />
<link rel="stylesheet" href="css/crawl.css" />
</head>
<body>
<div class="reveal">
<div class="slides">
<!---------------------------------------------------------------------
<!-- intro
<!-------------------------------------------------------------------->
<section>
<section id="title" data-markdown>
# git and rdm
## (... and reproducibility)
notes:
- `make -B` to create images, then reload
</section>
<section id="intro-objectives" data-markdown>
## objectives
- show how git relates to RDM
- ... and reproducibility
</section>
<section id="intro-agenda" data-markdown>
## agenda
1. motivation
1. ~~teach ***how*** to use git/GitHub/GitLab~~
1. use cases
1. anti-patterns
1. platforms
1. Q & A
notes:
- feel free to interrupt with immediate questions
- more involved detailed discussion as part of Q & A
</section>
<section id="intro-version-control" data-markdown>
## about version control
> records changes
what who when (why)
notes:
- the **why** (aka context) is optional
- you have to do this
- you have to care about it
</section>
<section id="intro-about-git" data-markdown>
## about git
### best tool for the job
- simple by design
- powerful if needed
- documentation / community
- industry standard
notes:
- git name: "the stupid content tracker"
- doc: finding answers with web searches
</section>
<section id="intro-about-me" data-markdown>
## about me
- scientific computing support @ iDiv since 2014
- satisfied git user since 2010
> There will never be a better version control system than git.
>
> -- Christian Krause, 2017
</section>
<section id="intro-about-you" data-markdown>
## about you
![people](img/people.jpg)
notes:
- who has never used any VCS before?
- who actively maintains a VCS repository?
</section>
</section>
<!---------------------------------------------------------------------
<!-- motivation
<!-------------------------------------------------------------------->
<section>
<section id="motivation" data-markdown>
# motivation
> Why should I use version control?
notes:
- motivation chapter is about the concept of version control
- git is just a tool to do it
</section>
<section id="motivation-avoid-mess" data-markdown>
## motivation #1
### avoid mess
![blah](img/motivation-draft-mess.png)
notes:
- who has seen such a mess?
- who has contributed to such a mess?
- who has created such a mess?
</section>
<section id="motivation-want-structure" data-markdown>
## motivation #1
### want structure
![blah](img/motivation-structure.svg)
notes:
- structure: who, when
- why is hidden (only shows message header, not body)
- ability to inspect old versions and their diff
- ability to revert/undo a change
</section>
<section id="motivation-playground" data-markdown>
## motivation #2
### throw-away playgrounds
![playground](img/motivation-throwaway-playground.svg)
notes:
- test stuff without interfering
- throw away if garbage
- integrate if good
- switch back and forth without pain
</section>
<section id="motivation-collaboration-1" data-markdown>
## motivation #c
### collaboration made easy
<!-- do not fix this typo, it is here on purpose to show collab -->
> This text cntains a typo.
notes:
- demo GitLab (change **target branch** to create merge request)
- this is how you can do reviews of drafts
- discuss this slide/chapter/section link
</section>
<section id="motivation-collaboration-2" data-markdown>
## motivation #c
![typo-pr](https://pbs.twimg.com/media/EDsklbLUEAMdusJ.png)
notes:
- might not seem like much
- but you are still making the world a better place
- and it is not too much effort
</section>
<section id="motivation-automation" data-markdown>
## motivation #a
### automation
- ***quality***
- **code analysis**
- **spell check**
- **software testing**
- enforce **style guide**
- ***deployment*** (app store, web server)
notes:
- basically, everything you can script
- refresh presentation before next slide
</section>
<section class="star-wars" id="motivation-wars">
<div class="crawl">
<div class="title">
<h1>motivation #wars</h1>
</div>
<div data-markdown>
1. view the ***history*** of changes
1. know ***why*** someone changed it
1. ***revert*** a bad change
1. maintain ***multiple versions***
1. see the ***diff*** of two versions
1. find commit ***that broke*** something
1. have free ***backup***
1. have ***non-interfering*** playgrounds
1. have ***automated*** testing
1. have ***automated*** deployment
1. ***contribute*** to a project
1. ***share*** your code
1. let other people do the work ***for you***
</div>
<img src="http://i.giphy.com/90F8aUepslB84.gif" />
</div>
</section>
</section>
<!---------------------------------------------------------------------
<!-- use cases
<!-------------------------------------------------------------------->
<section>
<section id="use-cases" data-markdown>
# use cases
##### for
### version control system (vcs)
##### aka
### source code management (scm)
</section>
<section id="use-case-software" data-markdown>
## software
- generic (as in parameterized)
- (ideally) tested
notes:
- e.g. R package
</section>
<section id="use-case-scripting" data-markdown>
## scripting
##### aka
### how to run `$software`
- ... in `$environment`
- digital lab notes
- **reproducibility** !!1!
- execution scalability
notes:
- separate software from scripting
- `$enviroment`: multiple scripts/configurations for different
environments:
- EasyBuild, conda, singularity
- RStudio server, HPC cluster
- execution scalability: running software or script without having
to change it
- keep failed attempts in branches
- e.g. highly parameterized software, make a record of bad
parameter sets
</section>
<section id="use-case-publishing" data-markdown>
# publishing
### (markdown (with some tex))
- paper / thesis / book
- presentation
- documentation
- blog
notes:
- who is using markdown?
- who is using tex?
- who is using word? why?
- markdown with tex
- git.idiv.de/help
- search for markdown
- search for math
- show example
</section>
<section id="use-case-integrated-1" data-markdown>
## integration
![run `make` to generate the image](img/rdm-use-cases-a.svg)
notes:
- software A: tried and tested, reference to compare to
- software B: your experimental better version
</section>
<section id="use-case-integrated-2" data-markdown>
## integration
![run `make` to generate the image](img/rdm-use-cases-b.svg)
</section>
<section id="use-case-integrated-3" data-markdown>
## integration
![run `make` to generate the image](img/rdm-use-cases.svg)
</section>
<section id="use-case-integrated-data" data-markdown>
## integration
![run `make` to generate the image](img/rdm-use-case-data.svg)
</section>
</section>
<!---------------------------------------------------------------------
<!-- anti patterns
<!-------------------------------------------------------------------->
<section>
<section id="anti-patterns" data-markdown>
# anti-patterns
![unlimited power](img/unlimited-power.jpg)
notes:
- does anyone know what an anti-pattern is?
</section>
<section id="anti-patterns-def" data-markdown>
# anti-patterns
> An anti-pattern is a common response to a recurring problem that
is usually ineffective and risks being highly counterproductive.
notes:
- most anti-patterns about how to use git
- focus here is on these relating to RDM and reproducibility
</section>
<section id="anti-pattern-binary" data-markdown>
# binary files
### (aka non-text)
- no diff with binary
- use textual representation
- convert with automation
notes:
- can someone give me an example of text file?
- markdown
- source code, scripts (R, shell)
- XSV
- can someone give me an example of binary file?
- compiled programs
- MS word excel
- PDF PS
- don't just put everything in the repo, use *ignore
</section>
<section id="anti-pattern-big-data" data-markdown>
# data in git
## (scientific/big data)
- version control for data is **DIFF**erent !!1!
- git is VCS for text, not for data
notes:
- do you release data with every script change? no, too expensive
- you don't ever put data files in a git repository
- not even with LFS
- big ball of mud, no metadata
</section>
</section>
<!---------------------------------------------------------------------
<!-- platforms
<!-------------------------------------------------------------------->
<section>
<section id="platforms-list" data-markdown>
# platforms
- GitHub
- https://github.com/idiv-biodiversity (cloud)
- GitLab
- https://gitlab.com (cloud)
- https://git.idiv.de (self-hosted @ iDiv)
</section>
<section id="platforms-purpose" data-markdown>
# platforms
- enable collaboration
- bug tracker / feature requests
- documentation / wiki
- project management tools
- issue boards, milestones, gantt
- trigger automation
- publish/download releases
</section>
</section>
<!---------------------------------------------------------------------
<!-- q & a
<!-------------------------------------------------------------------->
<section>
<section id="q-n-a" data-markdown>
# Q & A
notes:
- walk through examples of software/script/publishing
- walk through one of your use cases
- demo consulting
</section>
<section id="consulting" data-markdown>
# consulting
[christian.krause@idiv.de](mailto:christian.krause@idiv.de)
</section>
</section>
<!---------------------------------------------------------------------
<!-- eof
<!-------------------------------------------------------------------->
<section id="eof" data-background="img/trex.png" data-markdown>
### thanks for listening
# EOF
</section>
<!---------------------------------------------------------------------
<!-- backup
<!-------------------------------------------------------------------->
<section>
<section id="backup" data-markdown>
# backup slides
</section>
<section id="empty" data-markdown>
</section>
</section>
</div>
</div>
<!-------------------------------------------------------------------------
<!-- css/js
<!------------------------------------------------------------------------>
<!-- company logo -->
<div class="logo-wrapper">
<a href="https://www.idiv.de/">
<img src="img/company-logo-small.png" />
</a>
</div>
<!-- ribbon -->
<div class="ribbon-wrapper right">
<div class="ribbon">
<a href="https://git.idiv.de/sc/edu/git-seminar/edit/main/rdm.html"
target="_blank">
edit
</a>
</div>
</div>
<!-- reveal.stuff -->
<script src="reveal.js/dist/reveal.js"></script>
<script src="reveal.js/plugin/highlight/highlight.js"></script>
<script src="reveal.js/plugin/markdown/markdown.js"></script>
<script src="reveal.js/plugin/notes/notes.js"></script>
<script>
Reveal.initialize({
hash: true,
plugins: [RevealHighlight, RevealMarkdown, RevealNotes]
});
</script>
</body>
</html>
rdm.md 0 → 100644
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git for RDM and reproducibility
===============================
checklist
---------
- **software** (a generic tool to do *something*)
- [ ] use separate git repo for software
- [ ] tag versions for reproducibility
- [ ] keep software as generic as possible
- **scripts** (*how* to use *software*)
- [ ] use separate git repo for scripts
- [ ] tag versions for reproducibility
- [ ] software is configured here
- [ ] reference used software tag
- **data management**
- [ ] publish dataset(s) to scientific data archive system
- [ ] always attach proper metadata
- [ ] get DOI for each version of the dataset(s) for reproducibility
- [ ] reference used scripts tag
- **publishing**
- [ ] use separate git repo for paper/thesis/...
- [ ] tag versions for draft/review/final
- [ ] convert text/source to (binary) products
- [ ] reference used scripts tag
- [ ] reference used data DOI
- **platforms** (GitLab, GitHub)
- [ ] use platforms (GitLab, GitHub) for collaboration
- [ ] review commits / merge requests
- [ ] utilize project management tools
- [ ] utilize automation for testing and publishing
intro
-----
- version control system (VCS) records changes (what, who, when, why)
- use platforms (GitLab, GitHub) for collaboration
git use cases
-------------
### software
- keep software as generic as possible
- turn configuration/parameters into arguments, e.g. `myapp --seed=42`
- this avoids having to rewrite software for parameter changes
- use software testing to verify software does what it's supposed to do
- tag versions to enable **reproducibility**
### scripting
- separate scripting from software
- software: generic
- scripting: software called with specific configuration/arguments
- scripting means **how** to run the software
- i.e. here is where the parameters/arguments go
- think of it as digital lab notes
- this enables **reproducibility**
- specialized script variants for different environments, e.g.
- laptop
- RStudio / terminal server
- HPC cluster
- think about *execution scalability*, i.e. not having to change software and
scripting when you want to change parameters
- keep failed attempts in branches to keep history of what you tried and why it
didn't work in commit message
### publishing
- for paper, thesis, book, presentation, documentation, blog posts
- use *programming languages* code/scripts for plots, flowcharts, etc.
- write text/paragraphs in markup language (e.g. markdown)
- use automation workflows to
- generate plot/flowchart code to image files
- convert text with pandoc to PDF/PS/HTML/ebup
- use platforms for review process
## integration of use cases for reproducibility
![](img/rdm-use-case-merged.svg)
anti patterns
-------------
> An anti-pattern is a common response to a recurring problem that is usually
> ineffective and risks being highly counterproductive.
- most git anti-patterns are about *how* to use git
- focus here is on these relating to RDM and reproducibility
### binary files
- git as VCS only good for text files
- markdown
- source code, scripts
- (small) CSV
- binary files can't be diff'ed, e.g.
- compiled programs
- MS word, excel
- PDF, PS
- JPEG, PNG
- use textual representation, e.g.
- graphviz dot for flowcharts
- R ggplot and CSV for plots
- use automation to convert textual representation to e.g. images
- use gitignore to never add binary products to the repo
### scientific data in git repos
- data is often binary
- git repo should be small, data blows it up, even if text
- data has different release cycles than code
- even git lfs (large file storage) is bad because still big ball of mud
- scientific datasets need metadata!
- use proper archive system for data
platforms
---------
- enable collaboration
- bug tracker / feature requests
- documentation / wiki
- project management tools
- issue boards, milestones, gantt
- trigger automation
- publish/download releases
- go to https://git.idiv.de log in and create new projects!
rdm.yml 0 → 100644
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---
# these are not shown in the document, they are just for metadata
title: git RDM reproducibility check list cheat sheet
author: Christian Krause
lang: en
keywords:
- git
- RDM
- resource data management
- reproducibility
# highlighting increases readability
linkcolor: blue
# these LaTeX variables fit as much content on as few pages as possible
documentclass: scrartcl
pagestyle: empty
papersize: a4paper
geometry:
- a4paper
- left=1cm
- right=1cm
- top=1cm
- bottom=1cm
# you can also add "landscape" to geometry if you want more than 2 columns
# fiddle with these to increase readability
columns: 2
fontsize: 9pt
# this essentially disables justification, which can increase readability
ragged: yes
# color for header background
sectionbg: BurntOrange
subsectionbg: Apricot
...
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