Initial bash completion

writeimg_completion_bash.sh

@@ -0,0 +1,25 @@
+_writeimg_completion() {
+    local cur prev opts
+
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    prev="${COMP_WORDS[COMP_CWORD-1]}"
+
+    opts="-v -d -h --help -n --noconfirm -V --version"
+
+    # Devices
+    if [[ "$prev" == "-d" ]]; then
+        COMPREPLY=( $(compgen -W "$(ls -d /dev/sd* /dev/nvme* /dev/mmcblk* 2>/dev/null)" -- "$cur") )
+        return 0
+    fi
+
+    # Flags
+    if [[ "$cur" != -* ]]; then
+        COMPREPLY=( $(compgen -f -- "$cur") )
+        return 0
+    fi
+
+    # Files
+    COMPREPLY=( $(compgen -W "$opts" -- "$cur") )
+}
+
+complete -F _writeimg_completion writeimg