add sshfs_mount_file.sh

README.md

@@ -6,7 +6,7 @@ All code is licensed under GPL-3.0 unless specified otherwise.
 
 # Quick navigation
 
-| C                      |            Bash             | JS  |
-| ---------------------- | :-------------------------: | --- |
-| [unlink.c](c/unlink.c) | [arshit](shell/bash/arshit) |     |
-| [cecho.c](c/cecho.c)   |                             |     |
+| C                      | Bash                                                  | JS  |
+| ---------------------- | ----------------------------------------------------- | --- |
+| [unlink.c](c/unlink.c) | [arshit](shell/bash/arshit)                           |     |
+| [cecho.c](c/cecho.c)   | [sshfs_mount_file.sh](shell/bash/sshfs_mount_file.sh) |     |

shell/bash/sshfs_mount_file.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -e
+
+# sshfs_mount_file.sh
+# Uses sshfs to mount a single file by mounting the directory to a temporary directory and symlinking the file
+# I wrote this to access my Minecraft accounts saved in PrismLauncher without keeping them on the unencrypted drive of my laptop, so that's why the defaults are like that
+# Also, you can't have 2 active mounts at the same time. Would be cool if someone implemented that
+# MOUNT_PATH has to be the same on both hosts
+# Consider creating a ssh config file before using this
+# Usage:
+# ./sshfs_mount_file.sh mount [MOUNT_PATH] [HOST]
+# ./sshfs_mount_file.sh umount [MOUNT_PATH]
+
+MOUNT_PATH="${2:-/home/afy/.local/share/PrismLauncher/accounts.json}"
+MOUNT_DIR="$(dirname "$MOUNT_PATH")"
+FILE_NAME="$(basename "$MOUNT_PATH")"
+TEMP_DIR="/tmp/sshfs_mount_$UID"
+HOST="${3:-remote-pc}"
+
+mount() {
+	mkdir -p "$TEMP_DIR"
+	chmod o-rwx "$TEMP_DIR"
+	sshfs "$HOST":"$MOUNT_DIR" "$TEMP_DIR"
+	mv "$MOUNT_PATH"{,.old}
+	ln -sf "$TEMP_DIR/$FILE_NAME" "$MOUNT_PATH"
+}
+
+umount() {
+	mv "$MOUNT_PATH"{.old,}
+	fusermount3 -u "$TEMP_DIR"
+}
+
+if [[ "$1" = "mount" ]]; then
+	mount
+elif [[ "$1" = "umount" ]]; then
+	umount
+elif [[ "$1" = "" ]]; then
+	echo "You need to specify a command" >&2
+	echo "Valid commands: mount, umount" >&2
+	exit 1
+else
+	echo "Invalid command: '$1'" >&2
+	exit 1
+fi