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#! /usr/bin/env sh

set -euo pipefail

if ! id -nG | grep -qwF "gitadm"; then
    echo $'\e[31myou are not an admin\e[0m'
    exit 13
fi

if [ $# -lt 1 ]; then
  echo $'\e[31mrepository name is required\e[0m'
  exit 1
fi

read_with_default() {
    local var="$1"
    local title="$2"
    local default="$3"

    read -p $'\e[36m'"$title"$'\e[0m \e[1m['"$default"$']\e[0m: ' $var
    eval vval="\$$var"
    eval $var="\"${vval:-$default}\""
}

name="$1"
path="$(echo "$1" | sed 's/ /-/' | tr '[:upper:]' '[:lower:]').git"

if [ -e "$path" ]; then
    echo $'\e[31m'"repository at \"$path\" already exists"$'\e[0m'
    exit 1
fi

read_with_default defbranch "default branch" "main"
read_with_default dispname "display name" "$name"
read_with_default owner "owner" "$(id -un)"
read_with_default shared "shared with 'gitdev' group" "yes"

echo $'\e[36mdescription\e[0m (terminate with C-d): '
description=""
while read -r descline; do
    description="$description$descline\n"
done

echo "creating repo at: $path..."
sharerepo="false"
case "$(echo "$shared" | tr '[:upper:]' '[:lower:]')" in
    y|yes|ye|true|t) sharerepo="group" ;;
esac
git init --bare --shared="$sharerepo" --initial-branch="$defbranch" "$path"

echo "generating web config..."
cat <<EOF > "$path/cgitrc"
name=$dispname
owner=$owner
desc=${description%\\n}
EOF

echo "browse new repo at: https://git.datagubbe.dev/$path"