Update all git repositories in subfolders (worktree max 2-levels deep)

git_update_dir.sh

#!/bin/bash
# run like git_update_dir.sh /my/long/folder/path/.git

GIT_PATH="$1"
WORK_TREE=$(echo "$GIT_PATH" | sed 's/\.git$//')

gitexec() {
  git --git-dir="$GIT_PATH" --work-tree="$WORK_TREE" $1
}

echo "## UPDATE $GIT_PATH"

if [[ "$1" == *git ]]; then
  gitexec "status"
  gitexec "reset --hard -q"
  gitexec "fetch --all -q"
  gitexec "merge --ff-only -q"
  gitexec "remote update --prune"
  # git submodule cannot work with --work-tree/--git-dir basis
#  gitexec "submodule update --init --recursive --remote"
#  gitexec "submodule foreach git reset --hard -q"
#  gitexec "submodule foreach git gc --quiet --auto"
  gitexec "gc --quiet --auto"
else
  echo "## NOT GIT"
fi

git_update_dirs.sh

#!/bin/bash

find -maxdepth 3 -name '.git' -type d -exec git_update_dir.sh \{\} \;