#!/usr/bin/env bash
#
# Check if all published crates configure what features to document on docs.rs.
# Not documenting one or all features is allowed but needs to be configured explicitly.

set -euo pipefail

: "${CARGO:=cargo}"

readarray -t offending_crates < <(
  "$CARGO" metadata --format-version 1 | jq -r '
      .packages[]
      | select(
          (.id | startswith("path+file:///"))
          and (.publish == null or .publish == true or .publish != [])
          and (
            .metadata.docs.rs == null or (
              .metadata.docs.rs["all-features"] == null and .metadata.docs.rs.features == null
            )
          )
        )
      | .name'
)

count=${#offending_crates[@]}
if [ "$count" -gt 0 ]; then
    for crate in "${offending_crates[@]}"
    do
        echo "No features configured for package.metadata.docs.rs in Cargo.toml of $crate."
    done
    printf "\nFound %d offending crate%s.\n" "$count" "$([ "$count" -ne 1 ] && echo s)"
    echo "Read https://docs.rs/about/metadata for more information."
    exit 1
else
    echo "Hurray! All crates configure what feature(s) to (not) document in docs.rs."
    exit 0
fi