feat(sops): introduce plugin (#14120)

plugins/sops/README.md

@@ -0,0 +1,3 @@
+## Sops Plugin
+
+This plugin sets up completion for [sops](https://getsops.io).

plugins/sops/sops.plugin.zsh

@@ -0,0 +1,18 @@
+# COMPLETION FUNCTION
+if (( ! $+commands[sops] )); then
+  return
+fi
+
+# If the completion file doesn't exist yet, we need to autoload it and
+# bind it to `sops`. Otherwise, compinit will have already done that.
+if [[ ! -f "$ZSH_CACHE_DIR/completions/_sops" ]]; then
+  typeset -g -A _comps
+  autoload -Uz _sops
+  _comps[sops]=_sops
+fi
+
+zmodload -F zsh/files b:zf_mv
+() {
+  local TMPPREFIX="$ZSH_CACHE_DIR/completions/._sops"
+  zf_mv -f -- =( sops completions zsh ) "$ZSH_CACHE_DIR/completions/_sops"
+} &|