#!/usr/bin/env bash
#
# Run "cargo sort" to check that the Cargo.tomls are sorted

set -euo pipefail

# We want to exclude the toplevel Cargo.toml, because that needs to be in
# topological order.  But cargo sort doesn't support that.
#  https://github.com/DevinR528/cargo-sort/issues/38

# So instead, we sed its output.  Urgh.

(TERM=dumb cargo sort --check --workspace || test $? = 1) 2>&1 | perl -ne '
    next if m{^\Qerror: Dependencies for arti are not sorted\E$};
    $n_arti += !!m{^\QChecking arti...}; # printed for toplevel too
    next if m{^Checking \S+\Q...\E$};
    $n_bad++;
    print STDERR;
    END {
        flush STDOUT;
        eval {
            die "expected \"Checking arti\" twice, got $n_arti times\n" unless $n_arti==2;
            die "unexpected output ($n_bad line(s)) from cargo-sort\n" if $n_bad;
        };
        if ($@) {
            print STDERR $@;
            exit 12;
        }
    }
'