sops: add bash/zsh completion

pkgs/tools/security/sops/bash_autocomplete

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+# based on https://github.com/urfave/cli/blob/v2.3.0/autocomplete/bash_autocomplete
+
+_cli_bash_autocomplete() {
+    if [[ "${COMP_WORDS[0]}" != "source" ]]; then
+        local cur opts
+        COMPREPLY=()
+        cur="${COMP_WORDS[COMP_CWORD]}"
+        if [[ "$cur" == "-"* ]]; then
+            opts=$("${COMP_WORDS[@]:0:$COMP_CWORD}" "${cur}" --generate-bash-completion)
+        else
+            opts=$("${COMP_WORDS[@]:0:$COMP_CWORD}" --generate-bash-completion)
+        fi
+        IFS=$'\n' read -d '' -ra COMPREPLY < <(compgen -W "${opts}" -- "${cur}")
+        return 0
+    fi
+}
+
+complete -o bashdefault -o default -o nospace -F _cli_bash_autocomplete sops

pkgs/tools/security/sops/default.nix

@@ -1,4 +1,10 @@
-{ lib, buildGoModule, fetchFromGitHub, nix-update-script }:
+{
+  lib,
+  buildGoModule,
+  fetchFromGitHub,
+  installShellFiles,
+  nix-update-script,
+}:
 
 buildGoModule rec {
   pname = "sops";
@@ -19,6 +25,13 @@ buildGoModule rec {
 
   passthru.updateScript = nix-update-script { };
 
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installShellCompletion --cmd sops --bash ${./bash_autocomplete}
+    installShellCompletion --cmd sops --zsh ${./zsh_autocomplete}
+  '';
+
   meta = with lib; {
     homepage = "https://getsops.io/";
     description = "Simple and flexible tool for managing secrets";

pkgs/tools/security/sops/zsh_autocomplete

@@ -0,0 +1,25 @@
+#compdef sops
+
+## based on https://github.com/urfave/cli/blob/v2.3.0/autocomplete/zsh_autocomplete
+
+_cli_zsh_autocomplete() {
+
+  local -a opts
+  local cur
+  cur=${words[-1]}
+  if [[ "$cur" == "-"* ]]; then
+    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} ${cur} --generate-bash-completion)}")
+  else
+    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} --generate-bash-completion)}")
+  fi
+
+  if [[ "${opts[1]}" != "" ]]; then
+    _describe 'values' opts
+  else
+    _files
+  fi
+
+  return
+}
+
+compdef _cli_zsh_autocomplete sops