edit yaml across a bunch of repos

yeet.sh

#!/bin/sh
set -euo pipefail

wd=$(pwd)
trap cleanup SIGINT SIGKILL

cleanup() {
    cd $wd >/dev/null
}

DIRECTORY_GLOB="."
FILENAME_GLOB="*"
FILE_FILTER=".*"
UPDATE=
COMMIT_MESSAGE=""
BRANCH_NAME=

while [[ $# -gt 0 ]]; do
  case $1 in
    -d|--dir)
      DIRECTORY_GLOB="$2"; shift; shift;
      ;;
    -n|--name)
      FILENAME_GLOB="$2"; shift; shift;
      ;;
    -f|--filter)
      FILE_FILTER="$2"; shift; shift;
      ;;
    -b|--branch)
      BRANCH_NAME="$2"; shift; shift;
      ;;
    -u|--update)
      # For example, set a deeply-nested key with filtering: (.foo.bar[] | select(.somekey == "someval").resources.requests.cpu) |= "100m")
      UPDATE="$2"; shift; shift;
      ;;
    -*|--*)
      echo "Unknown option $1"
      exit 1
      ;;
    *)
      if [ -n "$COMMIT_MESSAGE" ]; then
        echo "can only pass one posarg"
        exit 1
      fi

      COMMIT_MESSAGE="$1"; shift
      ;;
  esac
done

if [ -z "$BRANCH_NAME" ]; then
  BRANCH_NAME="$(echo $COMMIT_MESSAGE | tr ' ' '-' | tr '[:upper:]' '[:lower:]')"
fi

for dir in $(find $DIRECTORY_GLOB -name "${FILENAME_GLOB}" -exec grep -l "${FILE_FILTER}" {} \; | cut -d/ -f2);
do
  cd "./${dir}"
  base=$(git remote show origin | sed -n '/HEAD branch/s/.*: //p')
  git stash save
  git switch $base
  git pull
  git switch -c "$BRANCH_NAME"

  find . \
    -name "${FILENAME_GLOB}" \
    -exec grep -l "${FILE_FILTER}" {} \; \
    -exec yq -i "$UPDATE" {} \;

  if [ -n "$(git status --porcelain)" ]; then
    git add .
    git commit -m "$COMMIT_MESSAGE"
    git push origin $BRANCH_NAME
    gh pr create --fill
  fi

  git switch $base
  cd -
done