A bash script to update all git repos

rp.sh

#!/usr/bin/env bash

# A script to update all git repositories in a directory tree
# Run `rp status` to see the status of all repositories
# Run `rp update` to update all repositories that are on the main branch and have no uncommitted changes

my_project_dir=/path/to/my/git/repos

function print_status() {
  tput bold
  echo "${repository}"
  tput sgr0
  echo Branch: "$(git rev-parse --abbrev-ref HEAD)"
  git status --short
  echo
}

function update_repository() {
  git fetch                        &> /dev/null
  git rebase                       &> /dev/null
  git remote update --prune origin &> /dev/null
  git gc                           &> /dev/null
}

OLDPWD=$PWD

cd "$my_project_dir" || exit

if [[ "$1" == "status" ]]; then
  for repository in $(find . -maxdepth 2 -type d -name .git | sort | cut -d/ -f2 2>/dev/null); do
    (
      cd "${repository}" || exit
      if [[ "$(git status --short | wc --lines)" != "0" || ! "$(git rev-parse --abbrev-ref HEAD)" =~ (main|master|gh-pages) ]]; then
        print_status
      fi
    )
  done
fi

if [[ "$1" == "update" ]]; then
  for repository in $(find . -maxdepth 2 -type d -name .git | sort | cut -d/ -f2 2>/dev/null); do
    (
      cd "${repository}" || exit
      if [[ "$(git status --short | wc --lines)" != "0" || ! "$(git rev-parse --abbrev-ref HEAD)" =~ (main|master|gh-pages) ]]; then
        echo skipping $repository
      else
        update_repository
      fi
    ) &
    sleep 0.1
  done
  wait
fi

cd $OLDPWD || exit