check-xz-in-homebrew

check-xz-in-homebrew.sh

#!/bin/bash

# Commands to evaluate impact of xz installed via homebrew.
# Author: Olivier Mengué.

# Show info about xz bottle:
brew info xz

# Upgrade xz:
brew update
brew upgrade xz

# Show bottles which directly depend on xz (as JSON lines):
brew info --installed --json | jq -c '.[] | select(.dependencies | index("xz")) | {(.name): .dependencies}'

# Show bottles which directly depend on xz (as text):
brew info --installed --json|jq -cr '.[]|select(.dependencies|index("xz"))|(.name + ": " + (.dependencies | join(", ")))'