Make sure you always has GitHub email setup correctly

ensure-github-email.sh

#!/usr/bin/env sh

if [ ! -d "./.git" ]; then
        echo "Not a git repository"
        exit 1
fi

STORE_PATH="$HOME/.config/github_emails"
USER_PATH="$STORE_PATH/$1"

GH_USERNAME=$(git config --get user.name)
if [ $? -eq 1 ] || [ "$GH_USERNAME" != "$1" ]; then
        git config user.name "$1"
        echo "Set username to $1"
fi

if [ ! -d "$STORE_PATH" ]; then
        echo "Creating emails store"
        mkdir -p "$STORE_PATH"
fi

if [ -f "$USER_PATH" ]; then
        REAL_EMAIL=$(cat "$USER_PATH")
else
        JSON=$(curl -sSL "https://api.github.com/users/$1")
        if [ $? -ne 0 ]; then
                echo "Unable to fetch user info. Aborting."
                exit 1
        fi
        REAL_EMAIL="$(echo "$JSON" | jq .id)+$1@users.noreply.github.com"
        echo "$REAL_EMAIL" > "$USER_PATH"
        chmod 600 "$USER_PATH"
fi

GH_EMAIL=$(git config --get user.email)
if [ $? -eq 1 ] || [ "$GH_EMAIL" != "$REAL_EMAIL" ]; then
        git config user.email "$REAL_EMAIL"
        echo "Set email to $REAL_EMAIL"
fi

PUT_IN_PROFILE.ps1

function Invoke-Git() {
	function Get-Email() {
		# try finding email from file
		$cachedir = "$(Split-Path -Parent $PROFILE)/.github_users"
		New-Item -Path $cachedir -ItemType "directory" -Force | Out-Null

		$usercache = "$($cachedir)/user_$($env:GITHUB_USER)"
		if (Test-Path -Path $usercache) {
			Get-Content -Path $usercache
		} else {
			$req = Invoke-WebRequest -UseBasicParsing -URI "https://api.github.com/users/$($env:GITHUB_USER)" | ConvertFrom-Json
			$email = "$($req.id)+$($req.login)@users.noreply.github.com"
			Out-File -FilePath $usercache -InputObject $email -NoNewline | Out-Null
			$email
		}
	}

	# we only do stuff if user wants to commit
	if ($args[0] -eq "commit") {
		# check if remote is github
		$remote = (&git remote -v)
		if ($remote -match 'https://github.com') {
			Write-Host "Not so fast, we'll make sure you set up your GitHub email first."
			$setemail = (&git config user.email)
			$setname = (&git config user.name)
			$ghemail = Get-Email

			if ($setemail -ne $ghemail -or $setname -ne $env:GITHUB_USER) {
				Write-Output "Username or email is different than expected. Changing it for you :)"
				&git config user.email $ghemail
				&git config user.name $env:GITHUB_USER
				Write-Output "Got you covered. Now let's move on, shall we?"
			}
		}
	}

	git_old @args
}