install script

1 files changed, 116 insertions, 0 deletions

diff --git a/lib/funcs.sh b/lib/funcs.sh
new file mode 100644
index 0000000..2126e9a
--- /dev/null
+++ b/lib/funcs.sh
@@ -0,0 +1,116 @@
+
+#1: message
+yes_no() {
+	read -p "$1 (y/[n])" inp
+	case $inp in
+		[yY]* ) return 0;;
+		* ) 	return 1;;
+	esac
+}
+
+#interface on sterr
+multiselector() {
+	local argc=$#
+	local argv=( "$@" )
+	local cnt=0
+	local ret=""
+
+	for entry in "$@"; do
+		>&2 echo "$cnt) $entry"
+		((cnt=cnt + 1))
+	done
+
+	>&2 echo "Select entry(s)"
+	>&2 echo "eg. '1 3' '1-4' 'a'"
+	>&2 read -p " > " inp
+
+	for sel in $inp; do
+		local reg_range="^[0-9]+\-[0-9]+$"
+		local reg_single="^[0-9]+$"
+		local reg_all="^[aA]+"
+
+		if [[ $sel =~ $reg_range ]]; then
+			range=($(echo $sel | tr "-" " "))
+			for (( i=${range[0]}; i<=${range[1]}; i++ )); do
+				ret="$ret ${argv[$i]}"
+			done
+		elif [[ $sel =~ $reg_single ]]; then
+			ret="$ret ${argv[$sel]}"
+		elif [[ $sel =~ $reg_all ]]; then
+			ret=$@
+			break;
+		else
+			>&2 echo "Wrong input at \"$sel\""
+			ret=""
+			break
+		fi
+	done
+	echo $ret
+}
+
+selector() {
+	local regex="^-?[0-9]+\$"
+	local cnt=0
+	for selection in "$@"
+	do
+		echo "$cnt) $selection"
+		((cnt=$cnt + 1))
+	done
+
+	read -p "(default=0) >" inp
+	if [[ "$inp" =~ $regex ]] && [ $inp -ge 0 -a $inp -le $# ]
+	then
+		echo $inp
+		return $inp
+	elif [ -z $inp ]
+	then
+		return 0
+	else
+		return 2
+	fi
+}
+
+#1: source 2: destination
+link() {
+	if [ -e "$2" ]; then
+		if yes_no "$(basename $2) exists. Overwrite?"; then
+			if [ -d "$2" ]; then
+				rm -R "$2"
+			else
+				rm "$2"
+			fi
+		else
+			return
+		fi
+	fi
+
+	ln -s "$1" "$2"
+}
+
+choose_target() {
+	if [ ! -z "${CONFIGS[$1]}" ]; then
+		echo "Install $(pwd)/$1 to $HOME/${CONFIGS[$1]}/$1"
+		link "$(pwd)/$1" "$HOME/${CONFIGS[$1]}/$1"
+	elif [ ! -z "${SETS[$1]}" ]; then
+		for f in ${SETS[$1]}; do
+			choose_target $f
+		done
+	else
+		echo Target $1 not found. skipping.
+	fi
+}
+
+housekeeping() {
+	git submodule init
+	git submodule update
+
+	#.files is used to tell scripts where to look for the dotfiles
+	[ -f "$HOME/.files" ] && source "$HOME/.files"
+	if [ "$DOTFILEBASE" != "$(pwd)" ] && yes_no "'.files' out of date. Regenerate?"; then
+		echo "DOTFILEBASE=\"$(pwd)\"" > $HOME/.files
+	fi
+
+	if [ ! -f "$HOME/.files.config" ] && yes_no ".files.config does not exist. Populate with defaults?"; then
+		cp "config.default" "$HOME/.files.config"
+	fi
+}