#!/usr/bin/env bash
#
# Check if all published crates have MSRV (rust-version) defined in Cargo.toml.

set -euo pipefail

: "${CARGO:=cargo}"

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

count=${#offending_crates[@]}
if [ "$count" -gt 0 ]; then
    for crate in "${offending_crates[@]}"
    do
        echo "No rust-version defined in Cargo.toml of $crate."
    done
    printf "\nFound %d offending crate%s.\n" "$count" "$([ "$count" -ne 1 ] && echo s)"
    echo "Read https://doc.rust-lang.org/cargo/reference/rust-version.html for more information."
    exit 1
else
    echo "Hurray! All crates have a rust-version defined in Cargo.toml."
    exit 0
fi