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Add duplicate mounting/unmounting handling, remove unused variables, skip_mount

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Xevion
2025-06-07 16:23:51 -05:00
parent bdebd36f9a
commit d1d925232d
1 changed files with 79 additions and 40 deletions
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119
home/dot_local/bin/executable_viofo_backup.nu
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@@ -11,11 +11,9 @@ let host = "roman" # The host to backup to. This is defined in the ~/.ssh/confi
let host_path = "/mnt/user/media/backup/dashcam" # The path on the remote host to backup to.
# Global state tracking
mut mounted = false # Track if we've mounted a drive
mut letter = "" # Track the drive letter we're using
try {
# Check for required commands
# Pre-check for required commands
let required_commands = ["rsync", "sudo", "mount", "umount", "cmd.exe", "ssh"]
for cmd in $required_commands {
if (which $cmd | length) == 0 {
@@ -27,7 +25,7 @@ try {
# Acquire the actual hostname of the defined host
let host_name: string = (ssh -G $host | lines | find -r "^hostname\\s+" | str trim | split column " " | get column2).0
# Check network connectivity to backup target
# Pre-check network connectivity to backup target
log debug "Checking network connectivity to backup server..."
let ping_check = ping -c 1 $host_name | complete
if $ping_check.exit_code != 0 {
@@ -36,7 +34,7 @@ try {
exit 1
}
# Check if backup destination exists and is writable
# Pre-check if backup destination exists and is writable
log debug "Checking backup destination..."
try {
ssh $host "test -d $host_path && test -w $host_path"
@@ -45,7 +43,7 @@ try {
exit 1
}
# Check available space on backup destination
# Pre-check available space on backup destination
log debug "Checking available space on backup destination..."
let required_space = 10GB # 10GB in bytes
try {
@@ -66,7 +64,7 @@ try {
let mountable = (cd /mnt/c; cmd.exe /C "wmic logicaldisk where DriveType=2 get DeviceID,Name /format:csv" | from csv)
log info "Pick a USB device to mount for Viofo backup:"
# Check that at least one drive is available
# Assert that at least one drive is available
if ($mountable | length) == 0 {
log error "No USB drives found"
exit 1
@@ -74,25 +72,44 @@ try {
# Have the user choose a drive
let selected_drive = $mountable | input list -d "DeviceID" "Select a drive to mount for backup"
$letter = $selected_drive.DeviceId | str replace --regex ":$" "" | str downcase
let win_drive_path = $"($letter | str upcase):"
let letter = $selected_drive.DeviceId | str replace --regex ":$" "" | str downcase # e.g. 'C:' -> 'c'
let win_drive_path = $"($letter | str upcase):" # e.g. 'c' -> 'C:'
# Check if already mounted
log info "Checking if drive is already mounted..."
let findmnt_check = findmnt -J --mountpoint /mnt/($letter) | complete
mut skip_mount = false
# Handle the case where the drive is already mounted
if $findmnt_check.exit_code == 0 {
log debug "Drive is already mounted"
$mounted = true
# Check was successful, meaning something must be mounted there
let mounts = $findmnt_check.stdout | from json
mut mounts = $findmnt_check.stdout | from json
log debug "Mount JSON acquired"
# If multiple mounts are found, print them, then exit
if ($mounts.filesystems | length) > 1 {
log error ("Multiple mounts found, cannot continue \n" + ($mounts | to json --indent 2))
exit 1
log debug $"Multiple mounts \(($mounts.filesystems | length)\) found"
# Check if all mounts have identical properties
let first_mount = $mounts.filesystems.0
let all_same = ($mounts.filesystems | each {|mount|
$mount.source == $first_mount.source
$mount.target == $first_mount.target
$mount.fstype == $first_mount.fstype
$mount.options == $first_mount.options
} | all {|x| $x})
if $all_same {
log debug "Multiple identical mounts found, treating as single mount"
$mounts.filesystems = [$first_mount]
} else {
log error ("Multiple mounts found, cannot continue \n" + ($mounts | to json --indent 2))
exit 1
}
}
log debug $"($mounts.filesystems | length) mounts found"
let current_mount = $mounts.filesystems.0
@@ -110,6 +127,8 @@ try {
}
log info $"Mount Details: ($current_mount.options)"
# Ask the user if they want to continue
while true {
let continue = input "Continue anyways? [y/n]"
if $continue == "y" {
@@ -119,37 +138,41 @@ try {
exit 1
}
}
# Set the flag to skip the mount
$skip_mount = true
}
try {
# Mount the drive
log info "Mounting drive (requires sudo)..."
if $skip_mount == false {
# Mount the drive
log info "Mounting drive (requires sudo)..."
try {
log debug "Preparing mount point folder..."
sudo mkdir --parents /mnt/($letter)
} catch { |err|
log error $"Error: Could not prepare mount point folder: ($err.msg)"
exit 1
}
try {
log debug "Preparing mount point folder..."
sudo mkdir --parents /mnt/($letter)
} catch { |err|
log error $"Error: Could not prepare mount point folder: ($err.msg)"
exit 1
}
try {
log debug "Mounting drive..."
sudo mount -t drvfs ($win_drive_path) /mnt/($letter) -o uid=(id -u $env.USER),gid=(id -g $env.USER),metadata
$mounted = true
} catch { |err|
log error $"Error: Could not mount drive: ($err.msg)"
exit 1
}
try {
log debug "Mounting drive..."
sudo mount -t drvfs ($win_drive_path) /mnt/($letter) -o uid=(id -u $env.USER),gid=(id -g $env.USER),metadata
} catch { |err|
log error $"Error: Could not mount drive: ($err.msg)"
exit 1
}
log debug "Drive mounted"
log debug "Drive mounted"
# Verify mount was created
log debug "Verifying mount was successful..."
let mount_check = findmnt -J --mountpoint /mnt/($letter) | complete
if $mount_check.exit_code != 0 {
log error $mount_check.stderr
error "Failed to mount drive"
# Verify mount was created
log debug "Verifying mount was successful..."
let mount_check = findmnt -J --mountpoint /mnt/($letter) | complete
if $mount_check.exit_code != 0 {
log error $mount_check.stderr
error "Failed to mount drive"
}
}
try {
@@ -213,9 +236,25 @@ try {
# Unmount the drive
log info "Unmounting drive..."
try {
sudo umount /mnt/($letter)
sudo rmdir /mnt/($letter)
$mounted = false
# Acquire # of mounts at location (duplicate mounts)
let mounts = findmnt -J --mountpoint /mnt/($letter) | from json
let mount_count = $mounts.filesystems | length
if $mount_count == 0 {
log error "No mounts found..."
} else {
if $mount_count > 1 {
log warning $"Unmounting multiple mounts ($mount_count)"
}
# Unmount all mounts
for i in (1..$mount_count) {
log debug $"Unmounting mount ($i)"
sudo umount /mnt/($letter)
}
sudo rmdir /mnt/($letter)
}
} catch { |err|
log error $"Could not unmount drive: ($err.msg)"
exit 999