Collate unhoistable lerna dependencies

collate-unhoistable-lerna-dependencies.sh

npx lerna bootstrap --force-local --strict --hoist 2> >(jq --raw-input --slurp '
# create an array of relevant lines
split("\n")
| map(
  select(. != "")
  | select(contains("WARN EHOIST_PKG_VERSION"))
)

# create { hoisted: string, unhoisted: string }[]
| map(
  match("depends on (\\S+), which differs from the hoisted (\\S+)")
  | { unhoisted: .captures[0].string, hoisted: .captures[1].string }
)

# aggregate the data into Record<string, string[]>
# mapping a hoisted var to its unhoisted versions
| reduce .[] as $dep (
  {};
  if has($dep.hoisted) then
    (. + { ($dep.hoisted): (.[($dep.hoisted)] + [ $dep.unhoisted ]) })
  else
    (. + { ($dep.hoisted): [ $dep.unhoisted ] })
  end
)
')

Creates output like

  "lodash@4.17.19.": [
    "lodash@4.17.21",
    "lodash@4.17.21",
    "lodash@4.17.21",
    "lodash@4.17.21",
    "lodash@4.17.20",
    "lodash@^4.17.21",
    "lodash@^4.17.21",
    "lodash@^4.17.20",
    "lodash@~4.17.11"
  ],
  "yargs@17.0.1.": [
    "yargs@12.0.2",
    "yargs@14.0.0"
  ],

Thanks to https://stackoverflow.com/a/692407