sync-exercise-project-configs

#!/usr/bin/env sh

# Download the `gleam.toml` and `manifest.toml` project files from the
# `exercism/gleam-test-runner` repository to each exercise to ensure they are
# using the correct versions of the dependencies.
#
#   ./bin/sync-exercise-project-configs
#
# Alternatively you can give the `check` argument to check that the manifests
# are correct.
#
#   ./bin/sync-exercise-project-configs --check
#

set -eu

download() {
  file="$1"
  url="$2"
  curl --silent --show-error --fail --retry 3 --max-time 3 \
    --output "$file" "$url"
}

update_config_name() {
  project="$1"
  name="$(basename "$project" | sed 's/-/_/g')"
  sed -i -e "s/name = \".*\"/name = \"$name\"/" "$canonical_config"
}

check() {
  project="$1"
  update_config_name "$project"

  if ! diff "$canonical_config" "$project"/gleam.toml || 
    ! diff "$canonical_manifest" "$project"/manifest.toml
  then
    echo "ERROR: Config files are out of sync with gleam-test-runner config" 1>&2
    echo "Run \`bin/sync-exercise-project-configs\` to correct this" 1>&2
    exit 1
  fi
}

sync() {
  project="$1"
  update_config_name "$project"
  cp "$canonical_config" "$project"/gleam.toml
  cp "$canonical_manifest" "$project"/manifest.toml
}

packages_prefix="https://raw.githubusercontent.com/exercism/gleam-test-runner/main/packages"
project_dir="$(dirname "$(dirname "$0")")"
tmp_dir="$(mktemp -d)"
canonical_config="$tmp_dir"/gleam.toml
canonical_manifest="$tmp_dir"/manifest.toml

download "$canonical_config" "$packages_prefix"/gleam.toml
download "$canonical_manifest" "$packages_prefix"/manifest.toml

for config in "$project_dir"/exercises/*/*/gleam.toml
do
  project="$(dirname "$config")"
  echo "$project"
  case "$@" in
    *--check*)
      check "$project"
      ;;
    *)
      sync "$project"
      ;;
  esac
done