Lerna: validate only the packages that have changed since the last tagged release

lerna_changed.sh

function lerna_lint() {
  npx lerna exec $(for package_dir in `npx lerna changed -p`; do echo -n " --scope $(basename ${package_dir})"; done) -- yarn lint
}

function lerna_test() {
  npx lerna exec $(for package_dir in `npx lerna changed -p`; do echo -n " --scope $(basename ${package_dir})"; done) -- yarn test
}

function validate() {
  lerna_lint
  lerna_test
}

# ------------------------------------------------------------
# Aliases
# ------------------------------------------------------------

alias lerna_validate=lerna_validate
alias lerna_lint=lerna_lint
alias lerna_test=lerna_test