Add install message

app/app

@@ -3,10 +3,15 @@ set -e
 APP_CMD="$(realpath "$BASH_SOURCE")"
 APP_DIR="$(dirname "$APP_CMD")"
 source "$APP_DIR/env"
-if [ -f "$APP_DIR/cmd/$1" ]; then
-	source "$APP_DIR/cmd/$1"
-	exit 0
-else
-	echo "ERROR: Action \"$1\" not found, use: \"$0\" help"
-	exit 1
-fi
+
+echo "Acquiring lock ..." >&2
+mkdir -p /run/$APP_NAME
+exec 100>/run/$APP_NAME/lock
+set +e
+while true; do
+	if flock -e -n 100; then
+		break
+	fi
+	sleep 1
+done
+exec bash "$APP_DIR/cmd/main" "${@}"

app/cmd/eject

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -e
+eval "$(bash "$APP_DIR/cmd/main" plist "$2")"
+eject "$mm_path"
+set +e
+hdparm -Y "$mm_path"

app/cmd/help

@@ -1,24 +1,22 @@
 #!/usr/bin/env bash
 cat << EOF
+Commands:
 * mountman list
-List known partitions for humans:
-* 8G [] (/dev/sda, disk)
-  * 8G [label] (/dev/sda1, crypto_LUKS)
-  * 0M [] (/dev/sda2, part)
-...
+List known block devices.
 
-* mountman plist
-List known partitions, programmatically:
-  mm_path='/dev/sda1'; mm_label='label'; mm_size='8G'; mm_type='part'; mm_format='crypto_LUKS'; mm_parent='/dev/sda'; mm_mountpath=''
-...
-(note: escape ' in strings with ")
+* mountman plist [/path]
+List known block device(s), with technical information, parseable with bash.
 
-* mountman mount </path>
-Mount a partition
+* mountman mount
+Mount block device, returns the mountpoint's path.
 
 * mountman umount </path>
-Unmount a partition
+Unmount block device.
 
 * mountman eject </path>
-Eject the device the partition belongs to"
+Eject block device, and shut it off, if possible.
+
+Legend:
+* <> - Required argument
+* [] - Optional argument
 EOF

app/cmd/list

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set +e
-"$APP_CMD" plist | while read mm_cmd; do
+bash "$APP_DIR/cmd/main" plist | while read mm_cmd; do
 	eval "$mm_cmd"
 	if ! [ "$mm_format" = "" ]; then
 		echo "[$mm_label] $mm_size - $mm_path ($mm_type/$mm_format)"

app/cmd/main

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -e
+APP_CMD="$(realpath "$(dirname "$BASH_SOURCE")/../app")"
+APP_DIR="$(dirname "$APP_CMD")"
+source "$APP_DIR/env"
+if [ -f "$APP_DIR/cmd/$1" ]; then
+	source "$APP_DIR/cmd/$1"
+	exit 0
+else
+	echo "ERROR: Action \"$1\" not found, use: \"$0\" help" >&2
+	exit 1
+fi

app/cmd/mount

@@ -1,15 +1,15 @@
 #!/usr/bin/env bash
 set -e
-eval "$("$APP_CMD" plist "$2")"
+eval "$(bash "$APP_DIR/cmd/main" plist "$2")"
 
 if [ "$mm_format" = "crypto_LUKS" ]; then
-	mm_target="$("$APP_CMD" name "$mm_path")"
+	mm_target="$(bash "$APP_DIR/cmd/main" name "$mm_path")"
 	cryptsetup luksOpen "$mm_path" "$mm_target"
 	echo "/dev/mapper/$mm_target"
 	exit 0
 fi
 
-mm_target="$("$APP_CMD" path "$mm_path")"
+mm_target="$(bash "$APP_DIR/cmd/main" path "$mm_path")"
 mkdir -p "$mm_target"
 mount "$mm_path" "$mm_target"
 echo "$mm_target"

app/cmd/name

@@ -1,9 +1,9 @@
 #!/usr/bin/env bash
 set -e
-eval "$("$APP_CMD" plist "$2")"
+eval "$(bash "$APP_DIR/cmd/main" plist "$2")"
 mm_label="${mm_label//-/_}"
 mm_label="${mm_label//\//_}"
-mm_uuid="$("$APP_CMD" hash "${mm_uuid}_${mm_partuuid}")"
+mm_uuid="$(bash "$APP_DIR/cmd/main" hash "${mm_uuid}_${mm_partuuid}")"
 mm_uuid="${mm_uuid//-/_}"
 mm_uuid="${mm_uuid//\//_}"
 echo "_$mm_label-$mm_uuid"

app/cmd/path

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 set -e
-mm_name="$("$APP_CMD" name "$2")"
+mm_name="$(bash "$APP_DIR/cmd/main" name "$2")"
 echo "/run/media/$mm_name"

app/cmd/plist

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set +e
 function output_line() {
-	mm_path="$("$APP_CMD" standardize "$1")"
+	mm_path="$(bash "$APP_DIR/cmd/main" standardize "$1")"
 	mm_label="$(blkid -o value -s LABEL "$mm_path")"
 	mm_size="$(lsblk -ndpo SIZE "$mm_path")"
 	mm_size="${mm_size// /}"

app/cmd/umount

@@ -1,14 +1,14 @@
 #!/usr/bin/env bash
 set -e
-eval "$("$APP_CMD" plist "$2")"
+eval "$(bash "$APP_DIR/cmd/main" plist "$2")"
 
 if [ "$mm_format" = "crypto_LUKS" ]; then
-	mm_target="$("$APP_CMD" name "$mm_path")"
+	mm_target="$(bash "$APP_DIR/cmd/main" name "$mm_path")"
 	cryptsetup luksClose "$mm_target"
 	exit 0
 fi
 
-mm_target="$("$APP_CMD" path "$mm_path")"
+mm_target="$(bash "$APP_DIR/cmd/main" path "$mm_path")"
 set +e
 umount "$mm_target"
 set -e

install

@@ -18,6 +18,7 @@ if [ "$APP_UNINSTALL" = "1" ]; then
 	fi
 fi
 
+echo "Installing $APP_NAME ..."
 mkdir -p "$APP_INSTALL_PATH"
 cp -r "$APP_PATH/app/." "$APP_INSTALL_PATH"
 ln -s "$APP_INSTALL_PATH/app" "/usr/local/bin/$APP_NAME"