anduin / compare_manifest

#!/usr/bin/env bash # compare_manifest.sh - Compare two manifest files and list packages present in the first but not the second. set -euo pipefail # Function to display usage information usage() { echo "Usage: $0 <left.manifest> <right.manifest>" echo echo "Extracts package names (first column) from each manifest, sorts them," echo "and prints packages present in the left file but not in the right." exit 1 } # Ensure exactly two arguments are provided if [[ $# -ne 2 ]]; then usage fi left_manifest="$1" right_manifest="$2" # Create a temporary directory for intermediate files tmpdir=$(mktemp -d) # Ensure the temporary directory is removed on script exit trap 'rm -rf "${tmpdir}"' EXIT # Extract package names (first column), sort, and write to temp files awk '{print $1}' "${left_manifest}" | sort > "${tmpdir}/left.txt" awk '{print $1}' "${right_manifest}" | sort > "${tmpdir}/right.txt" # Output the comparison result echo "Packages in '${left_manifest}' but not in '${right_manifest}':" comm -23 "${tmpdir}/left.txt" "${tmpdir}/right.txt"