databox-pin

#!/bin/bash

fail() {
    echo -e "[ERROR] ${1}"
    exit 1
}

assert() {
  if [ "$1" != "$2" ]
  then
    fail "$3" "$1"
  fi
}

usage() {
  echo $#
  echo "Please invoke this script with the relative path to the databox component you would like to pin."
  echo "Usage: databox-pin [OPTION...] [COMPONENT DIR]"
  echo "Flags:"
  echo "-d     Delete the pin"
  echo "-h     This help message"
  exit 1
}

if [[ $# < 1 ]] || [[ "$1" == "-h" ]]  # Must have more than 1 args.
then
  usage
fi

update_file() {
    FILE=$1
    COMP=$2
    LINE=$3
    LEFT=$(grep -v "^${COMP}" $FILE)
    echo "$LEFT" > $FILE
    echo -e $LINE >> $FILE
}

check_y() {
    if [ $1 != "y" ]
    then
        echo "OK - no changes made"
    exit 0
    fi
}

add_entry() {
    cd $COMPONENT_DIR >/dev/null 2>&1
    assert $? 0 "directory (${COMPONENT_DIR}) not found"

    git status >/dev/null 2>&1
    assert $? 0 "directory (${COMPONENT_DIR}) is not a git repo."

    ORIGIN=$(git remote get-url --push origin)
    #convert ssh to https pins
    ORIGIN=${ORIGIN//git@/https:\/\/}
    ORIGIN=${ORIGIN//com:/com\/}

    BRANCH=$(git rev-parse --abbrev-ref HEAD)

    cd ..

    echo "Are you sure you want to pin ${COMPONENT_NAME} to ${ORIGIN} ${BRANCH}? [y/n]"
    read -n1 ANS
    check_y $ANS

    update_file $DATABOX_CONFIG_FILE $COMPONENT_NAME "$COMPONENT_NAME $ORIGIN $BRANCH"

    echo "Done pined ${COMPONENT_NAME} to ${ORIGIN} ${BRANCH}"
}

del_entry() {
    echo "Are you sure you want to unpin ${COMPONENT_NAME}? [y/n]"
    read -n1 ANS
    check_y $ANS

    ORIGIN="https://github.com/me-box/${COMPONENT_NAME}"
    BRANCH="master"
    update_file $DATABOX_CONFIG_FILE $COMPONENT_NAME "$COMPONENT_NAME $ORIGIN $BRANCH"

    echo "Done unpined ${COMPONENT_NAME}"
}

DATABOX_CONFIG_FILE=databox-components




if [[ "$1" == "-d" ]]
then
  shift
  DATABOX_DIR=${pwd}
  COMPONENT_DIR=${1}
  COMPONENT_NAME=${1//.\//}
  COMPONENT_NAME=${COMPONENT_NAME%/}
  del_entry
else
  DATABOX_DIR=${pwd}
  COMPONENT_DIR=${1}
  COMPONENT_NAME=${1//.\//}
  COMPONENT_NAME=${COMPONENT_NAME%/}
  add_entry
fi