1 files changed, 59 insertions, 0 deletions
diff --git a/completions/op b/completions/op
new file mode 100644
index 0000000..31d6475
--- /dev/null
+++ b/completions/op
@@ -0,0 +1,59 @@
+# op (1Password CLI) completion                            -*- shell-script -*-
+
+_op_commands()
+{
+    "$@" --help 2>/dev/null |
+        awk '/^(Available |Sub)commands/{flag=1;next}/^ /&&flag{print $1}'
+}
+
+_op_command_options()
+{
+    case $cur in
+        -*)
+            for i in "${!words[@]}"; do
+                [[ ${words[i]} == -* || $i -eq 0 ]] && unset "words[i]"
+            done
+            COMPREPLY=($(compgen -W \
+                '$(_parse_usage "$1" "${words[*]} --help") --help' -- "$cur"))
+            [[ ${COMPREPLY-} == *= ]] && compopt -o nospace
+            return 0
+            ;;
+    esac
+    return 1
+}
+
+_op()
+{
+    local cur prev words cword split
+    _init_completion -s || return
+
+    local command i
+    for ((i = 1; i < cword; i++)); do
+        case ${words[i]} in
+            --help | --version) return ;;
+            -*) ;;
+            *)
+                command=${words[i]}
+                break
+                ;;
+        esac
+    done
+
+    if [[ ! -v command && $cur == -* ]]; then
+        COMPREPLY=($(compgen -W '$(_parse_usage "$1" --help)' -- "$cur"))
+        [[ ${COMPREPLY-} == *= ]] && compopt -o nospace
+        return
+    fi
+
+    [[ -v command ]] && _op_command_options "$1" && return
+
+    if [[ ! -v command || $command == "$prev" ]]; then
+        COMPREPLY=($(compgen -W '$(_op_commands "$1" ${command-})' -- "$cur"))
+        [[ ${COMPREPLY-} ]] && return
+    fi
+
+    # TODO specific command and subcommand completions
+} &&
+    complete -F _op op
+
+# ex: filetype=sh