/stdhome

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#!/bin/bash
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# fix up home dir
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if [ ! -d ~/.stdhome -a ! -d ~/.stdhome.dev -a ! -d ~/.stdhome.orig ]; then
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	mkdir ~/.stdhome
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fi
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if [ ! -d ~/.stdhome ]; then
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	echo "Can't determine current state: no ~/.stdhome"
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	exit 1
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fi
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# current state
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CURRENT=
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if [ -d ~/.stdhome.orig -a ! -d ~/.stdhome.dev ]; then
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	CURRENT=on
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elif [ ! -d ~/.stdhome.orig ]; then
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	CURRENT=off
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fi
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if [ -z "$CURRENT" ]; then
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	echo "Can't determine current state" >&2
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	exit 1
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fi
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# target
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TARGET=
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if [ "$1" == "on" ]; then
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	TARGET=on
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elif [ "$1" == "off" ]; then
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	TARGET=off
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fi
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if [ "$TARGET" == "on" ]; then
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	# already on?
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	if [ "$CURRENT" == "on" ]; then
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		echo already on >& 2
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		exit 0
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	fi
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	echo turning on
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	# create/check rc
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	if [ ! -f ~/.stdhomerc ]; then
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		echo "No ~/.stdhomerc, creating..."
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		echo "[stdhome]" >> ~/.stdhomerc
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		echo "#home-dir = ~/tmp/stdhome-test" >> ~/.stdhomerc
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		mkdir -p ~/tmp/stdhome-test
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	fi
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	if ! grep -q '^#home-dir ?= ?~/tmp/stdhome-test' ~/.stdhomerc; then
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		echo "No commented home-dir in ~/.stdhomerc"
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		echo "Please add the following to the [stdhome] section:"
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		echo "#home-dir = ~/tmp/stdhome-test"
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		exit 1
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	fi
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	# turn on
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	mv ~/.stdhome{,.orig}
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	if [ -d ~/.stdhome.dev ]; then
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		mv ~/.stdhome{.dev,}
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	else
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		mkdir ~/.stdhome
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		echo new dev environment, use stdhome init
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	fi
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 	sed -ie 's/^#\(home-dir\)/\1/' ~/.stdhomerc
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	mkdir -p ~/tmp/stdhome-test
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elif [ "$TARGET" == "off" ]; then
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	# already off?
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	if [ "$CURRENT" == "off" ]; then
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		echo already off >& 2
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		exit 0
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	fi
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	echo turning off
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	# check rc
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	if ! grep -q '^home-dir ?= ?~/tmp/stdhome-test' ~/.stdhomerc; then
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		echo "No uncommented home-dir in ~/.stdhomerc"
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		exit 1
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	fi
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	# turn off
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	mv ~/.stdhome{,.dev}
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	mv ~/.stdhome{.orig,}
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	sed -ie 's/^home-dir/#\0/' ~/.stdhomerc
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else
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	echo currently $CURRENT
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fi