etc/examples/60-submodule


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#!/bin/bash

submodule=$(mktemp -d)
repo=$(mktemp -d)
cd $submodule
git init
git commit --allow-empty -m "Initial commit"
cd $repo
git init
git submodule add $submodule submodule
git commit --allow-empty -m "Initial commit"
touch submodule/a
cat >> .git/config <<EOF
[diff]
    submodule = log
EOF
git diff | cat