Add completion script

secbox-completion.sh

@@ -0,0 +1,61 @@
+# Bash completion for secbox
+# 2022 Filippo Bonazzi (filippo dot bonazzi at suse dot com)
+
+_generate_secbox_cmds_file()
+{
+  # Check that we have the output folder parameter
+  if [ "$#" -ne 1 ]
+  then
+    >&2 echo "usage: ${FUNCNAME[0]} <OUT_FOLDER>"
+    return 1
+  fi
+
+  # Check if output directory exists and is writeable
+  if [[ -d "$1" ]] && [[ -x "$1" ]] && [[ -w "$1" ]]
+  then
+    secbox bash -c "compgen -c" > "$1/secbox_cmds.lst"
+  else
+    >&2 echo "Bad folder: $1"
+    >&2 echo "usage: ${FUNCNAME[0]} <OUT_FOLDER>"
+    return 1
+  fi
+}
+
+_secbox_completion()
+{
+  local cur prev opts
+
+  COMPREPLY=()
+  cur="${COMP_WORDS[COMP_CWORD]}"
+  prev="${COMP_WORDS[COMP_CWORD-1]}"
+
+    # Get list of commands available in secbox from file
+    # TODO: how do we find the file?
+    cmds=$(tr '\n' ' ' < secbox_cmds.lst)
+
+    opts="--sshfs --nfs --destroy --root --debug --update-container --no-color --alias --tty --no-tty --interactive --no-interactive -h --help -v --version"
+
+    # If we are completing the first time, complete on commands and options
+    if [[ $COMP_CWORD -eq 1 ]]
+    then
+      COMPREPLY=( $( compgen -W "$cmds $opts" -- "$cur" ) )
+      return 0
+    fi
+
+    # Otherwise complete with more context
+    case "$prev" in
+      --destroy)
+        COMPREPLY=( $( compgen -W '-i -f' -- "$cur" ) )
+        ;;
+      --update-container)
+        COMPREPLY=( $( compgen -W '-f --force' -- "$cur" ) )
+        ;;
+      -*)
+        COMPREPLY=( $( compgen -W "$opts" -- "$cur" ) )
+        ;;
+    esac
+
+  }
+
+# Use _secbox_completion to generate completion for secbox
+complete -F _secbox_completion secbox