Add kata on aliases

alias/README.md

@@ -0,0 +1,35 @@
+# Git kata: Aliases
+
+While working, we tend to write a lot of commands. This can get tedious, especially when the commands are rather long. Git allows you to create an alias for commands, dramatically shortening the time spent typing them.
+
+Aliases are stored in your git config and can thus be global or local. Global config is tied to your user, while local config lives inside a specific repository.
+
+## Setup
+
+1. Run `source setup.sh` (or `.\setup.ps1` in PowerShell)
+
+## The task
+
+1. View your config by running `git config --list`
+2. Add a new global alias\
+ `git config --global alias.lol 'log --oneline --graph --all'`\
+ This allows you to call `git lol` as an alternative to `git log --oneline --graph --all`
+3. Run your alias `git lol`
+4. Run the full command `git log --oneline --graph --all`\
+Are there any difference in the output?
+5. Create another alias, this time local, that lists commits where you are the author\
+`git config --local alias.lome "log --author=\"$(git config --get user.name)\""`
+6. Run your alias `git lome`\
+ What does it show?
+7. View your git config and its sources by running `git config --list --show-origin`\
+ Can you find your alias configurations?
+8. Try running `git lome` in a different git repository\
+ Does it work?
+9. Remove your `git lol` alias by running `git config --unset alias.lol`
+
+## Useful commands
+
+- `git config --list`
+- `git config --list --show-origin`
+- `git config get <configuration>`
+- `git config --unset <configuration>`

alias/setup.ps1

@@ -0,0 +1,9 @@
+. ..\utils\make-exercise-repo.ps1
+
+Set-Content -Value "dummy" -Path dummy.txt
+
+git add dummy.txt
+git commit -m "dummy commit"
+Set-Content -Value "dummy2" -Path dummy.txt
+git add dummy.txt
+git commit -m "adding more content to dummy.txt"

alias/setup.sh

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+#!/bin/bash
+
+# Include utils
+source ../utils/utils.sh
+
+kata="$(basename $(pwd))"
+make-exercise-repo
+
+echo "dummy" > dummy.txt
+git add dummy.txt
+git commit -m "dummy commit"
+echo "dummy2" > dummy.txt
+git add dummy.txt
+git commit -m "adding more content to dummy.txt"
+

configure-git/README.md

@@ -41,6 +41,8 @@ You can set up aliases as such:
 This might be useful to you when you look at the Git graph.
 Paste that into your terminal, and try it out with `git lol`.
 
+More on aliases can be found in the alias kata.
+
 ### SSH authentication
 
 - See https://help.github.com/articles/generating-an-ssh-key for details about authenticating against SSH-enabled repositories