Cloning repos with namespaces

clone_repo.sh

#!/bin/bash
#
# This scripts will clone a git repository into its own namespace, in the
# directory $HOME/code.
#
# For example, the URL: git@gitlab.com:shouptech/example.git, would clone to:
# $HOME/code/gitlab.com/shouptech/example
#
# This script is intended to make managing multiple repositories from multiple
# sources easier.
#
# It currently supports URLs in the format of
# https://<servername>/<projectpath>.git
#   and
# git@<servername>:<projectpath>.git
#
# Projects will be cloned to:
# $HOME/code/<servername>/<projectpath>

# Exit codes used. See sysexits.h
CLONE_PREFIX="$HOME/code"

EX_OK=0
EX_USAGE=64
EX_DATAERR=65

usage() {
  echo "Usage: $0 clone_url"
  exit $EX_USAGE
}

clone_repo() {
  clone_url="$1"
  clone_path="$2"

  echo "Cloning to path $clone_path..."
  if [ -d "$clone_path" ]; then
    echo "$clone_path already exists. Exiting for safety..."
    exit $EX_DATAERR
  fi

  mkdir -p "$clone_path"
  git clone "$clone_url" "$clone_path"
}

parse_path() {
  clone_url="$1"

  if [[ "$clone_url" == git* ]]; then
    after_git=${clone_url/#git@/}
    before_git=${after_git/%.git/}
    clone_path="$CLONE_PREFIX/${before_git/://}"
  elif [[ "$clone_url" == https* ]]; then
    after_https=${clone_url/#https:\/\//}
    clone_path="$CLONE_PREFIX/${after_https/%.git/}"
  else
    echo "$1 is not a supported git URL for this script."
    exit $EX_DATAERR
  fi

  clone_repo $clone_url $clone_path
}

main() {
  if [ -z "$1" ]; then
    usage
  fi

  parse_path "$1"
}

main "$@"

exit $EX_OK