From 9f77cb29d7557ec6ce453a7372b053931a7d034d Mon Sep 17 00:00:00 2001
From: Marco Franssen <marco.franssen@gmail.com>
Date: Fri, 15 Apr 2022 20:43:43 +0200
Subject: [PATCH] feat(sigstore): add completion plugin

Closes #10862

Signed-off-by: Marco Franssen <marco.franssen@gmail.com>
Co-authored-by: Carlo Sala <carlosalag@protonmail.com>
---
 plugins/sigstore/README.md           | 13 +++++++++++++
 plugins/sigstore/sigstore.plugin.zsh | 22 ++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 plugins/sigstore/README.md
 create mode 100644 plugins/sigstore/sigstore.plugin.zsh

diff --git a/plugins/sigstore/README.md b/plugins/sigstore/README.md
new file mode 100644
index 000000000..00e83c8c2
--- /dev/null
+++ b/plugins/sigstore/README.md
@@ -0,0 +1,13 @@
+# Sigstore plugin
+
+This plugin sets up completion for the following [Sigstore](https://sigstore.dev/) CLI tools.
+
+- [Cosign](https://docs.sigstore.dev/cosign/overview)
+- [Sget](https://docs.sigstore.dev/cosign/installation#alpine-linux)
+- [Rekor](https://docs.sigstore.dev/rekor/overview)
+
+To use it, add `sigstore` to the plugins array in your zshrc file:
+
+```zsh
+plugins=(... sigstore)
+```
diff --git a/plugins/sigstore/sigstore.plugin.zsh b/plugins/sigstore/sigstore.plugin.zsh
new file mode 100644
index 000000000..1f9d77c11
--- /dev/null
+++ b/plugins/sigstore/sigstore.plugin.zsh
@@ -0,0 +1,22 @@
+function install_autocompletion {
+  if (( ! $+commands[$1] )); then
+    return
+  fi
+
+  # If the completion file doesn't exist yet, we need to autoload it and
+  # bind it to `$1` (cosign, sget, rekor-cli). Otherwise, compinit will
+  # have already done that
+  if [[ ! -f "$ZSH_CACHE_DIR/completions/_$1" ]]; then
+    autoload -Uz _$1
+    typeset -g -A _comps
+    _comps[$1]=_$1
+  fi
+
+  $1 completion zsh >| "$ZSH_CACHE_DIR/completions/_$1" &|
+}
+
+install_autocompletion cosign
+install_autocompletion sget
+install_autocompletion rekor-cli
+
+unfunction install_autocompletion