Taskfile

#!/usr/bin/env bash

[ "${BASH_VERSINFO:-0}" -ge 4 ] || {
  echo "bash version 4 or higher is required" >&2
  exit 1
}

set -euo pipefail

declare -A config
config['dryrun']=false

function github() {
  _ mod upgrade -t "${1}" --mod-name=github.com/google/go-github/v"$(($1 - 1))"
  _ go mod tidy
  _ make format
}

function testdata() {
  local base='https://github.com/kamilsk?controller=profiles&action=show&tab=contributions'
  declare -A urls
  urls['kamilsk.1986.html']="${base}&from=1986-01-01"
  urls['kamilsk.2019.html']="${base}&from=2019-01-01"
  urls['kamilsk.2021.html']="${base}&from=2021-01-01"

  for name in "${!urls[@]}"; do
    _ curl -sSfL -H 'X-Requested-With: XMLHttpRequest' "${urls[${name}]}" \
    > "internal/model/github/contribution/testdata/${name}"
  done
}

@debug() { echo "${@}"; }
@trace() { @debug "${@}" && "${@}"; }
@error() { echo "${@}" >&2; }
@fatal() { @error "${@}" && exit 1; }
@usage() {
  cat - <<EOF
Usage: $0 <task> <args>
Tasks:
EOF
  compgen -A function | grep -Ev '^(@|_)' | sort | cat -n
}

@() {
  ${config['dryrun']} && echo "${@}"
  "${@}"
}

_() {
  if ${config['dryrun']}; then
    echo "${@}"
    return
  fi
  trap 'echo "${@}"' ERR
  "${@}"
}

-() {
  if ${config['dryrun']}; then
    echo "${*} || false"
    return
  fi
  trap 'echo "${*} || false"' ERR
  "${@}" || false
}

+() {
  if ${config['dryrun']}; then
    echo "${*} || true"
    return
  fi
  trap 'echo "${*} || true"' ERR
  "${@}" || true
}

function @main() {
  for arg in "${@}"; do
    case "${arg}" in
    -d | --dry-run)
      config['dryrun']=true
      shift
      ;;
    *) break ;;
    esac
  done
  "${@:-@usage}"
}

@main "${@}"