Bundle to remove a git submodule

git-submodule-rm

#!/bin/bash

# AUTHOR: Hedzr Yeh
# LICENSE: MIT

# PREREQUISITES:
# 1. install ini-op tool:
#    i. via `go install`
#       `go get github.com/hedzr/ini-op`
#    ii. download ini-op bianry release and put the unzipped executable file into a location which is $PATH searchable 
#        `wget https://github.com/hedzr/ini-op/releases/download/v0.2.9/ini-op.darwin.amd64.gz | gunzip -c > /usr/local/bin/ini-op`

usage () {
	local appname=$(basename $0)
	cat <<EOF
'$appname' can remove an submodule from current git repo.
It do all clear stuffs for you, such as:
	- git rm --cached third-party/libA
	- rm -rf third-party/libA
	- rm -rf .git/modules/third-party/libA
	- erase the 'third-party/libA' section from .gitmodules
	- erase the 'third-party/libA' from .git/config
Note:
	'$appname' need an external tool 'ini-op'. download it from:
		https://github.com/hedzr/ini-op/releases
	and gunzip it to /usr/local/bin, or /usr/bin, or anywhere in
	your \$PATH.

Usage:  $appname submodule-pathspec
Sample:
	\$ git submodule add git@github.com:Tencent/libco.git third-party/libco
	\$ $appname third-party/libco

EOF
}

submodule-rm () {
	local smn=${1:-nothing}
	if [ "$smn" == "nothing" ]; then
		usage
		exit
	elif [ -d .git ]; then
		git rm --cached $smn 2>/dev/null || echo "submodule $smn may not exist."
		rm -rf $smn && echo "$smn folder removed."
		[ -d .git/modules/$smn ] && rm -rf .git/modules/$smn
		[ -f .gitmodules ] && ini-op section rm "submodule \"$smn\"" .gitmodules
		[ -f .git/config ] && ini-op section rm "submodule \"$smn\"" .git/config
	else
		echo "BAD: no .git folder found."
	fi
}

submodule-rm "$@"