Convert HTTPS github clones to use SSH

fix_github_https_repo.sh

#/bin/bash
#-- Script to automate https://help.github.com/articles/why-is-git-always-asking-for-my-password

REPO_URL=`git remote -v | grep -m1 '^origin' | sed -Ene's#.*(https://[^[:space:]]*).*#\1#p'`
if [ -z "$REPO_URL" ]; then
  echo "-- ERROR:  Could not identify Repo url."
  echo "   It is possible this repo is already using SSH instead of HTTPS."
  exit
fi

USER=`echo $REPO_URL | sed -Ene's#https://github.com/([^/]*)/(.*).git#\1#p'`
if [ -z "$USER" ]; then
  echo "-- ERROR:  Could not identify User."
  exit
fi

REPO=`echo $REPO_URL | sed -Ene's#https://github.com/([^/]*)/(.*).git#\2#p'`
if [ -z "$REPO" ]; then
  echo "-- ERROR:  Could not identify Repo."
  exit
fi

NEW_URL="git@github.com:$USER/$REPO.git"
echo "Changing repo url from "
echo "  '$REPO_URL'"
echo "      to "
echo "  '$NEW_URL'"
echo ""

CHANGE_CMD="git remote set-url origin $NEW_URL"
`$CHANGE_CMD`

echo "Success"

Thank you so much guys!

Point to be noted is that if you use Xcode with Swift Package Manager then this is going to cause issues for you as Xcode by default doesn't respect this , and continues to use its own way of doing things. It is a really irritating bug. You can check this SO question for more details

https://stackoverflow.com/questions/58165880/xcode-11-spm-authentication-failed-because-no-credentials-provided

@brettalton thanks for the one liner!

Hi, in case someone need to get git remote url as https, whatever your remote Git repository settings are.
more at https://gist.github.com/CodeIter/be215cfef4ec1af5e1a10c4563944869

[ -z "${GITHOST}" ] && GITHOST="github.com"
[ -z "${GITBRANCH}" ] && GITBRANCH="origin"
git remote -v \
| grep "${GITBRANCH}" | grep fetch | head -n 1 \
| sed -re 's~\s+\(fetch\)$~~' \
      -re 's~([^/ :]+/[^/ :]+)$~#\1~;s~^[^#]+#+~~' \
      -re 's~(github\.com)~\1/~' \
      -re '/^https?:\/\//!s~^~https://'"${GITHOST}"'/~'

If your https url include user:password, like https://user:token@github.com/username/reponame, then you should use this:

REPO_URL=$(git remote -v | grep -m1 '^origin' | sed -Ene's#.*(https://[^[:space:]]*).*#\1#p')

echo "$REPO_URL"
if [ -z "$REPO_URL" ]; then
    echo "-- ERROR:  Could not identify Repo url."
    echo "   It is possible this repo is already using SSH instead of HTTPS."
    exit
fi

USER=$(echo "$REPO_URL" | sed -Ene's#https://.*github.com/([^/]*)/(.*).git#\1#p')
if [ -z "$USER" ]; then
    echo "-- ERROR:  Could not identify User."
    exit
fi

REPO=$(echo "$REPO_URL" | sed -Ene's#https://.*github.com/([^/]*)/(.*).git#\2#p')
if [ -z "$REPO" ]; then
    echo "-- ERROR:  Could not identify Repo."
    exit
fi

NEW_URL="git@github.com:$USER/$REPO.git"
echo "Changing repo url from "
echo "  '$REPO_URL'"
echo "      to "
echo "  '$NEW_URL'"
echo ""

CHANGE_CMD="git remote set-url origin $NEW_URL"
eval "$CHANGE_CMD"

echo "Success"