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adding commands to git

did you know that you can add commands to git by naming them right and placing them in your path?

if you put this:

#!/bin/sh
git branch | awk '/\*/ {print $2}'

into a file called git-current-branch, make it executable and put it somewhere in $PATH (i use ~/bin which i've added to $PATH), you will be able to use it like this:

$ git current-branch
feature/lolSausages

and bash/zsh completions will tab complete them too

that example would probably make more sense to be an alias, but what about something like this:

#!/bin/sh
branch=$1

if [ -z "$branch" ]; then
branch=$(git current-branch)
fi

git branch -u origin/${branch}

ooh, or

#!/bin/sh

function=$1
file=$2

if [ -z "$function" ] || [ -z "$file" ]; then
echo 'usage: git log-function <function> <file>'
exit 1
fi

git log -L ":$function:$file"

i'm sure you can come up with something more useful