Processes a Bamboo build log and extracts timings for each task

timings.sh

#!/usr/bin/env bash

if [[ "$#" -ne 1 ]]; then
  echo "Usage: $0 LOGFILE" >&2
  exit 1
fi

LOGFILE=$1

if ! [[ -f "${LOGFILE}" ]]; then
  echo "${LOGFILE} not found" >&2
  exit 1
fi

while IFS=$'\t' read START TASK ; do
  END=$(grep "Finished task '${TASK}'" ${LOGFILE} | awk -F$'\t' '{ print $2; }')
  DURATION=$(expr $(date +%s -d "${END}") - $(date +%s -d "${START}"))

  printf "\033[32m%-36s\033[0m%3s seconds\n" "${TASK}" "${DURATION}"
done < <(grep -E "Starting task '.+?'" ${LOGFILE} | sed -E "s/.+?\t(.+?)\tStarting task '([^']+?)'.+$/\1\t\2/")