Updating TypeScript typings to latest versions

update_typings.sh

#!/bin/bash

# Update TypeScript `typings` to their latest versions.
#
# Running this ad-hoc may break your project; be prepared to resolve issues by
# hand.
#
# Released under the terms of the MIT License

set -e

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# Paths to `typings.json` and `typings` executable--adjust to suit!
TYPINGSFILE="$DIR/../typings.json"
TYPINGSDIR="$DIR/../typings"
TYPINGS="${DIR}/../node_modules/.bin/typings"

bail () {
  echo $1
  exit 1
}

# extract "dt~package" from "registry:dt/package#some-version"
typings_lock_to_loc () {
  echo $1 \
    | cut -d':' -f2- \
    | cut -d'#' -f1 \
    | tr '/' '~'
}

# iterate over a dependency list in typings.json and attempt to update
update_typings () {
  local key=$1 extra_args=$2
  local ts=$(cat "$TYPINGSFILE" \
               | jq -r ".${key} | to_entries | .[] | [.key, .value] | @sh")

  echo "$ts" | while read t; do
    local name=$(echo $t | cut -d' ' -f1)
    local lock=$(echo $t | cut -d' ' -f2)
    local location=$(typings_lock_to_loc "$lock")

    typings un --save $name 2> /dev/null || echo "Skipped removing $name"
    typings install $location --save $extra_args
  done
}

# Check dependencies
command -v jq > /dev/null \
  || bail 'Could not find jq (See: https://stedolan.github.io/jq/)'
[[ -x "$TYPINGS" ]] \
  || bail "Could not run typings; please set \$TYPINGS in $0"
[[ -f "$TYPINGSFILE" ]] \
  || bail "Could not find typings.json; please set \$TYPINGSFILE in $0"

# Remove existing typings directory
[[ -d "$TYPINGSDIR" ]] && {
  rm -rf "$TYPINGSDIR"
}

# Update typings
update_typings dependencies
update_typings globalDependencies --global