osx bash script to convert all repositories to use ssh urls. useful when moving to ssh access from http, which is good for two-factor authentication.

git_to_ssh.sh

#!/bin/bash

# this is provided as-is, with no guarantees that it will work or not explode your computer.
# written for OSX.
# 
# orion elenzil 2017
#
# Motivation:
# If you are moving to two-factor authentication,
# you may also want to move from http-access to ssh-access.
# You know you're using http-access if you use URLs like "https://github.com/foo/bar" when cloning.
# But if you're moving to ssh-access, you'll need to update the URLs of all your repositories.
# In my case i had about 100 git repositories cloned, so wrote a script.

# a few constants
SERVICE_SPEC="git@github.com:"
LOCATION_OF_ALL_REPOSITORY_PARENT_FOLDERS="$HOME/git"

echo "this script will change all repositories to use SSH urls."
echo "it assumes that all your repositories are located as $LOCATION_OF_ALL_REPOSITORY_PARENT_FOLDERS/<github user>/<repository> ,"
echo "and that all folders of that pattern are git repositories. (altho it's benign if some aren't)"
read -p "do you want to continue ? [y/N] " prompt
if [[ $prompt != "y" && $prompt != "Y" && $prompt != "yes" && $prompt != "Yes" ]]
then
  exit 0
fi


WD1=`pwd`
pushd "$LOCATION_OF_ALL_REPOSITORY_PARENT_FOLDERS"
WD2=`pwd`

if [ "$WD1" != "$WD2" ]
then
	echo "pwd is not as expected. expected: \"$WD2\" actual:\"$WD1\"."
	exit 1
fi

for USERX in `find . -maxdepth 1 -type d \( ! -name . \)`
do
	USER=`echo "$USERX" | sed -e 's/^\.\///'`
	pushd "$USER" > /dev/null
	for REPOX in `find . -maxdepth 1 -type d \( ! -name . \)`
	do
		REPO=`echo "$REPOX" | sed -e 's/^\.\///'`
		pushd "$REPO" > /dev/null
		REPO_SPEC="$SERVICE_SPEC$USER/$REPO.git"
		echo "setting ssh-url: $REPO_SPEC"
		git remote set-url origin "$REPO_SPEC"
		popd > /dev/null
	done
	popd > /dev/null
done