gitBatch.sh

#!/usr/bin/env bash

set -e

repos=$(find . -name .git -a -type d -exec dirname {} \;)

eachRepo() {
  local f
  f=$*
  for repo in ${repos}; do
    pushd ${repo} > /dev/null
      $f
    popd > /dev/null
  done
}

line() {
  echo =============================================================================================================================
}

header() {
  line
  echo 'Repo:' $(pwd)
}

footer() {
  cat - <<FOOTEREND
$(line)

FOOTEREND
}

listRemotes() {
  local r
  for r in $(git remote); do
    echo $r $(git remote get-url $r)
  done
}

fixUpstream() {
  local origin
  origin=$(listRemotes | matchRemote 'gitlab.nonprod.dwpcloud.uk' | awk '{ print $1 }')
  echo $origin
}

checkoutBranch() {
  git checkout $1 || echo "  > No ${1} branch"
}

pullBranch() {
  git pull || echo "  >> Can't pull branch " currentBranch
}

currentBranch() {
  git branch -q | awk '$1 ~ /\*/ {print $2}'
}

matchRemote() {
  local test
  test=$1
  awk -v test="${test}" '$2 ~ test { print }'
}

ppBranch() {
  awk '{ printf "  Branch: %s\n", $1 }'
}

ppRemotes() {
  awk '{ printf "  Remote: %-15s -> %s\n", $1, $2}'
}

ppIndent() {
  awk '{ printf "  >> %s\n", $0}'
}

function report { # Report status of a git repo
  header
  currentBranch | ppBranch
  git status | ppIndent

  listRemotes | ppRemotes
  footer
}

function update { # Update the git repo: pull develop and master branch, fetch all branches
  local currentBranch
  currentBranch=$(currentBranch)
  header
  echo '  Fetching all'
  git fetch --all --tags --verbose
  echo '  Updating develop and master'
  checkoutBranch master && fixUpstream && pullBranch
  checkoutBranch develop && fixUpstream && pullBranch
  footer
  checkoutBranch ${currentBranch}
}
# Maintenance tasks (ideally idempotent!)

function fixPermissions { # Fix permissions in the git repo
  header
  git diff -p -R --no-color | grep -E "^(diff|(old|new) mode)" --color=never | git apply || true
  footer
}

function fixNonprodRemotes { # Rename old format remote repositories to new format
  local old new borkedRemotes
  old=gitlab.itsshared.net
  new=gitlab.nonprod.dwpcloud.uk

  borkedRemotes=$(listRemotes | matchRemote ${old} | sed s/${old}/${new}/)

  header
  [ -z "$borkedRemotes" ] && echo 'Nothing to do!' || git remote set-url ${borkedRemotes} 
  footer
}

function removeAwsRemotes { # Remove AWS remoted
  local aws awsRemotes
  aws=git.mgmt.health-dev.dwpcloud.uk
  awsRemotes=$(listRemotes | matchRemote ${aws} | awk '{print $1}')
  [ -z "${awsRemotes}" ] || {
    header
    git remote remove ${awsRemotes}
    footer
  }
}

function help { # Display this help
  cat ${0} | awk '
    /^function/ { printf("  %-20s | %s\n"), $2, substr($0, index($0, "# ") + 2) }
  '
}

action=$*
[ -z "${action}" ] && action='report'

eachRepo $action