install.sh

#!/bin/sh
#
# Installation script for MiceWeb (release). It copies $bin to one of the directories stored in $binpaths.

miceweb backup >/dev/null

INSTALL_DIR="$(cd "$(dirname "$0")" && pwd)"

bin="$INSTALL_DIR/miceweb"
binpaths="/usr/local/bin /usr/bin"

# This variable contains a nonzero length string in case the script fails
# because of missing write permissions.
is_write_perm_missing=""

cd "$INSTALL_DIR"

branch=$(git symbolic-ref -q --short HEAD)
current=$(git symbolic-ref -q --short HEAD || git describe --tags --exact-match)
release=$(git describe --tags "$(git rev-list --tags --max-count=1)")

if [ ! "$current" = "$release" ]; then
	if git checkout --quiet "$release"; then
		echo "Installing $release..." 1>&2
	elif [ -z "$branch" ]; then
		echo "Installing $current..." 1>&2
	else
		echo "Error: can't checkout $release, use 'install_dev.sh' if developing"
		exit 1
	fi
else
	echo "Installing $release (as previous)..." 1>&2
fi

for binpath in $binpaths; do
	cp --no-clobber "$binpath/miceweb" "$binpath/miceweb.bak" 2>/dev/null
	if cp "$bin" "$binpath/miceweb" ; then
		echo "Copied $bin to $binpath" 1>&2
		echo "Run 'miceweb' in the terminal" 1>&2
		echo "" 1>&2
		exit 0
	else
		if [ -e "$binpath/miceweb" ]; then
			echo "Check '$binpath/miceweb', move it to other place and run '$0' again" 1>&2
			echo "" 1>&2
			exit 1
		fi
		if [ -d "$binpath" -a ! -w "$binpath" ]; then
			is_write_perm_missing=1
		fi
	fi
done

echo "We cannot install $bin in $binpaths"

if [ -n "$is_write_perm_missing" ]; then
	echo "It seems that we do not have the necessary write permissions" 1>&2
	echo "Perhaps try running this script as a privileged user:" 1>&2
	echo "" 1>&2
	echo "    sudo $0" 1>&2
	echo "" 1>&2
fi

exit 1