Update git mirrors

clone-from-mirror.sh

#!/bin/bash

# Assume the clone-from-mirror.sh script is alongside the mirrors folders

# get the folder of the script itself (from https://stackoverflow.com/a/246128)
SOURCE=${BASH_SOURCE[0]}
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
  DIR=$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )
  SOURCE=$(readlink "$SOURCE")
  [[ $SOURCE != /* ]] && SOURCE=$DIR/$SOURCE # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done
SCRIPT_DIR=$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )

# clone from the mirror
git clone $SCRIPT_DIR/$1 $1

cd $1

# pull the submodules as well
git submodule update --init --recursive

# adds a "local-mirror" remote to point to the local filesystem mirror
git remote add local-mirror `git remote get-url origin`

# revises the "origin" remote to point to the real remote one instead of the local mirror it got cloned from
git remote set-url origin `git --git-dir \`git remote get-url local-mirror\` remote get-url origin`

update-remotes.sh

#!/bin/bash
# Update a folder with multiple git mirrors created with `git clone --mirror https://github.com/exampleuser/repository-to-mirror.git`

find . -type d -depth 2 -exec sh -c 'cd "{}"; pwd; git remote update;' \;