#!/bin/bash
# Usage $0 {owner/repo} {filename} {commit_message}
# Stores the content of stdin in a file named {filename} in the wiki of
# the provided repo
# Reads envvar GITHUB_TOKEN

set -eux

stdin="$(cat -)"
repo_name="${1}"
filename="${2}"
commit_message="${3}"
dir="$(mktemp -d)"
cd $dir

git clone "https://x-access-token:${GITHUB_TOKEN}@github.com/${repo_name}.wiki.git" .
echo $stdin > "${filename}"

git add "${filename}"

if ! git diff --staged --exit-code
then
    git config --global user.email "coverage-comment-action"
    git config --global user.name "Coverage Comment Action"
    git commit -m "$commit_message"

    git push -u origin
else
    echo "No change detected, skipping."
fi