Cleaning

nushell/config/mount.nu

@@ -0,0 +1,65 @@
+# startx checks if disks are mounted
+def startx [] {
+    # I'm used to running startx right after I login, to this first mount my
+    # disks and then runs startx.
+    mount-disk
+
+    # Then I run startx
+    /bin/startx
+}
+
+# mount my encrypted disks
+def mount-disk [] {
+
+    # If there is no $env.PRIMARY_DISK_UUID, we don't have to decrypt / mount anything
+    if not ("PRIMARY_DISK_UUID" in $env) {
+        return
+    }
+
+    # In my home on my encrypted partition, I have an empty file in ~/.mounted,
+    # this way, I can easily check if my encrypted partition is mounted or not.
+    if ("~/.mounted"| path exists) {
+        print -en "already mounted\n"
+        return
+    }
+
+    mut passphrase = ""
+
+    # On my computer, I have two disks, one NVMe with my OS, and one HDD with
+    # more space. I want three attempts at typing the passphrase.
+    for retry in [1, 2, 3] {
+
+        # Because they're encrypted with the same passphrase, I read the
+        # passphrase once, and then decrypt both disks.
+        sudo echo -n
+        let local_passphrase = (input -s "Enter your passphrase: ")
+        print -en "\n"
+
+        # Mount the NVMe encrypted partition
+        let mounted = do { $local_passphrase | sudo cryptsetup luksOpen ("/dev/disk/by-uuid/" + $env.PRIMARY_DISK_UUID) luks } | complete
+
+        # If mounted correctly, break this loop and mount other partitions.
+        if $mounted.exit_code == 0 {
+            print -en (ansi green_bold) "Passphrase correct\n" (ansi reset)
+            $passphrase = $local_passphrase
+            break
+        } else if $retry == 3 {
+            # If the third attempt failed, exit
+            error make {msg: "couldn't decrypt disk"}
+        } else {
+            print -en (ansi red_bold) "Passphrase incorrect, please try again\n" (ansi reset)
+        }
+    }
+
+    sudo mount /dev/mapper/luks /home
+
+    if ("SECONDARY_DISK_UUID" in $env) {
+        $passphrase | sudo cryptsetup luksOpen ("/dev/disk/by-uuid/" + $env.SECONDARY_DISK_UUID) luks2
+        sudo mount /dev/mapper/luks2 /mnt
+    }
+
+    # Some services cannot be started on boot because my encrypted drives are
+    # not mounted yet, so I mount them here.
+    systemctl start --user pueued
+    sudo systemctl start docker
+}

nushell/config/tfetch.nu

@@ -1,7 +1,9 @@
 # nushell puts prompt at bottom of terminal on resize, so it's preferable to start on the bottom of the terminal
 
+let has_tfetch = not (which tfetch | is-empty)
+
 # tfetch takes 19 lines, 21 with prompt
-let height = (stty size | split row " " | get 0 | into int) - 21
+let height = (stty size | split row " " | get 0 | into int) - (if $has_tfetch { 21 } else { 0 })
 
 # skip lines so that the prompt starts at the bottom of the terminal
 for i in 0..<$height {
@@ -9,4 +11,6 @@ for i in 0..<$height {
 }
 
 # Start tfetch
-tfetch
+if $has_tfetch {
+    tfetch
+}