Bash script which add summary after running `mix tests` in umbrella root

mix_test_summary.sh

#!/usr/bin/env bash
set +m
shopt -s lastpipe

app_name="unknown"

declare -A app_tests
declare -A app_fails
declare -A app_warnings
declare -A app_errors

mix test |
  while IFS= read -r line
  do
    echo "$line"
    if [[ "$line" =~ ^(==> ([^[:blank:]]*).*)$ ]]; then
      app_name="${BASH_REMATCH[2]}"
      apps+=($app_name)
      app_tests[$app_name]=0
      app_fails[$app_name]=0
      app_warnings[$app_name]=0
      app_errors[$app_name]=0
    fi
    if [[ "$line" =~ ^(([[:digit:]]+) tests, ([[:digit:]]+) failures.*)$ ]]; then
      app_tests[$app_name]="${BASH_REMATCH[2]}"
      app_fails[$app_name]="${BASH_REMATCH[3]}"
    fi
    if [[ "$line" =~ (\[error\]) ]]; then
      ((app_errors[$app_name]+=$(echo "$line" | grep -o "\[error\]" | wc -l)))
    fi
    if [[ "$line" =~ (\[warn\]) ]]; then
      ((app_warnings[$app_name]+=$(echo "$line" | grep -o "\[warn\]" | wc -l)))
    fi
  done

result=${PIPESTATUS[0]}

echo

for app in "${apps[@]}"
do
  printf "%-20s %3s tests, %3s failures, %3s warnings, %3s errors\n" "$app:" "${app_tests[$app]}" "${app_fails[$app]}" "${app_warnings[$app]}" "${app_errors[$app]}"
  ((total_tests+=${app_tests[$app]}))
  ((total_fails+=${app_fails[$app]}))
  ((total_warnings+=${app_warnings[$app]}))
  ((total_errors+=${app_errors[$app]}))
done

echo
echo "total: $total_tests tests, $total_fails failures, $total_warnings warnings, $total_errors errors"

exit $result

output.md

Run in umbrella root ./mix_test_summary.sh

==> gql
........

Finished in 0.4 seconds
8 tests, 0 failures

Randomized with seed 451224
==> web
...........10:00:40.739 [error] Postgrex.Protocol (#PID<0.19544.0>) disconnected: ** (DBConnection.ConnectionError) client #PID<0.19506.0> exited: no process: the process is not alive or there's no process currently associated with the given name, possibly because its application isn't started
.......10:00:42.042 [error] Postgrex.Protocol (#PID<0.20809.0>) disconnected: ** (DBConnection.ConnectionError) client #PID<0.20782.0> exited: no process: the process is not alive or there's no process currently associated with the given name, possibly because its application isn't started
...

Finished in 4.2 seconds
21 tests, 0 failures

Randomized with seed 451224
==> main
..

Finished in 0.02 seconds
2 tests, 0 failures

Randomized with seed 451224

..all input and..

gql: 8 tests, 0 failures, 0 warnings, 0 errors
web: 21 tests, 0 failures, 0 warnings, 2 errors
main: 2 tests, 0 failures, 0 warnings, 0 errors

total: 31 tests, 0 failures, 0 warnings, 2 errors