run 'git fetch' for all repositories in a folder

batch-git-fetch.sh

#!/usr/bin/env sh

# Alex Lindeman
# 2015-11-11
# Runs 'git fetch' for all repositories in a folder.

target_folder="/srv/git"
git_opts="--prune --no-recurse-submodules"

GIT_DISCOVERY_ACROSS_FILESYSTEM=1

git_bin=$(which git)
[ $? -eq 0 ] || (echo >&2 'git not installed or not in $PATH' && exit 1)

for repo in $target_folder/*; do
	if [ -d "$repo" ]; then
		$git_bin fetch $git_opts -- "$repo"
	fi
done
exit 0