fix: correct alias matching, portable prompts, and exit codes

aliasme.sh

@@ -5,102 +5,141 @@ ALIASME_DIR="${ALIASME_DIR:-$HOME/.aliasme}"
 ALIASME_CMD="$ALIASME_DIR/cmd"
 
 _list() {
+	local name value
 	if [ -s "$ALIASME_CMD" ];then
-		while read -r name
+		while IFS= read -r name
 		do
-			if ! read -r value; then break; fi
+			if ! IFS= read -r value; then break; fi
 			echo "$name : $value"
 		done < "$ALIASME_CMD"
 	fi
 }
 
+_find() {
+	local name
+	if [ -s "$ALIASME_CMD" ];then
+		while IFS= read -r name
+		do
+			if [ "$1" = "$name" ]; then
+				return 0
+			fi
+			if ! IFS= read -r _; then break; fi
+		done < "$ALIASME_CMD"
+	fi
+	return 1
+}
+
 _add() {
 	# Ensure directory exists
 	mkdir -p "$ALIASME_DIR"
 
+	local name cmd
 	name=$1
 	if [ -z "$1" ]; then
-		read -rep "Input name to add:" name
+		printf "Input name to add: "
+		IFS= read -r name
 	fi
 
 	cmd="$2"
 	if [ -z "$2" ]; then
-		read -rep "Input cmd to add:" cmd
+		printf "Input cmd to add: "
+		IFS= read -r cmd
+	fi
+
+	if [ -z "$name" ] || [ -z "$cmd" ]; then
+		echo "name and command must not be empty"
+		return 1
+	fi
+
+	if _find "$name"; then
+		echo "$name already exists, remove it first: al rm $name"
+		return 1
 	fi
 
 	echo "$name" >> "$ALIASME_CMD"
 	echo "$cmd" >> "$ALIASME_CMD"
-    echo "add: $name -> $cmd"
+	echo "add: $name -> $cmd"
 
 	_autocomplete
 }
 
 _remove() {
+	local name value line found
 	name=$1
 	if [ -z "$1" ]; then
-		read -pr "Input name to remove:" name
+		printf "Input name to remove: "
+		IFS= read -r name
 	fi
 
-    if [ -s "$ALIASME_CMD" ];then
-        touch "$ALIASME_DIR/cmdtemp"
-    	while read -r line
-    	do
-    		if [ "$line" = "$name" ]; then
-    			read -r _ #skip one more line
-                echo "remove $name"
-    		else
-    			echo "$line" >> "$ALIASME_DIR/cmdtemp"
-    		fi
-    	done < "$ALIASME_CMD"
-    	mv "$ALIASME_DIR/cmdtemp" "$ALIASME_CMD"
-    fi
+	found=1
+	if [ -s "$ALIASME_CMD" ];then
+		: > "$ALIASME_DIR/cmdtemp"
+		while IFS= read -r line
+		do
+			if ! IFS= read -r value; then break; fi
+			if [ "$line" = "$name" ]; then
+				echo "remove $name"
+				found=0
+			else
+				echo "$line" >> "$ALIASME_DIR/cmdtemp"
+				echo "$value" >> "$ALIASME_DIR/cmdtemp"
+			fi
+		done < "$ALIASME_CMD"
+		mv "$ALIASME_DIR/cmdtemp" "$ALIASME_CMD"
+	fi
+	if [ "$found" -ne 0 ]; then
+		echo "not found: $name"
+	fi
 	_autocomplete
+	return "$found"
 }
 
 _excute() {
-    if [ -s "$ALIASME_CMD" ];then
-        while read -u9 -r line; do
-            if [ "$1" = "$line" ]; then
-                read -u9 -r line
-    			eval "$line"
-    			return 0
-            fi
-        done 9< "$ALIASME_CMD"
-    fi
+	local name value
+	if [ -s "$ALIASME_CMD" ];then
+		while IFS= read -u9 -r name; do
+			if ! IFS= read -u9 -r value; then break; fi
+			if [ "$1" = "$name" ]; then
+				eval "$value"
+				return $?
+			fi
+		done 9< "$ALIASME_CMD"
+	fi
 	return 1
 }
 
 _bashauto()
 {
-	local cur opts
+	local cur opts line
 	COMPREPLY=()
 	cur="${COMP_WORDS[COMP_CWORD]}"
 
 	opts=""
-    if [ -s "$ALIASME_CMD" ];then
-    	while read -r line
-    	do
-    		opts+=" $line"
-    		read -r _
-    	done < "$ALIASME_CMD"
-    fi
+	if [ -s "$ALIASME_CMD" ];then
+		while IFS= read -r line
+		do
+			opts+=" $line"
+			if ! IFS= read -r _; then break; fi
+		done < "$ALIASME_CMD"
+	fi
 	# shellcheck disable=SC2207
 	COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
 	return 0
 }
 
 _autocomplete()
 {
+	local opts line
 	if [ -n "$ZSH_VERSION" ]; then
 		# zsh
 		opts=""
-        if [ -s "$ALIASME_CMD" ];then
-    		while read -r line
-    		do
-    			opts+="$line "
-    			read -r _
-    		done < "$ALIASME_CMD"
-        fi
+		if [ -s "$ALIASME_CMD" ];then
+			while IFS= read -r line
+			do
+				opts+="$line "
+				if ! IFS= read -r _; then break; fi
+			done < "$ALIASME_CMD"
+		fi
 		# shellcheck disable=SC2154
 		compctl -k "($opts)" al
 	else
@@ -131,8 +170,11 @@ al(){
 			echo "aliasme 3.1.0"
 			echo "visit https://github.com/Jintin/aliasme for more information"
 		else
-			if ! _excute "$1" ; then
-				echo "not found"
+			if _find "$1"; then
+				_excute "$1"
+			else
+				echo "not found: $1"
+				return 1
 			fi
 		fi
 	fi