Add helper for pr urls

derivations/gh-pr-url/default.nix

@@ -0,0 +1,10 @@
+{pkgs ? import <nixpkgs> {}}:
+pkgs.stdenvNoCC.mkDerivation {
+  pname = "gh-pr-url";
+  version = "unstable";
+  src = ./.;
+  doBuild = false;
+  installPhase = ''
+    install -Dm755 ./gh-pr-url $out/bin/gh-pr-url
+  '';
+}

derivations/gh-pr-url/gh-pr-url

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+
+gh pr view --json url -t '{{.url}}' $*

flake.nix

@@ -81,6 +81,7 @@
         cert-info = cert-info.packages.${system}.default;
         simpleproxy = inputs.simpleproxy.packages.${system}.default;
         gh-repo-url = final.callPackage ./derivations/gh-repo-url {};
+        gh-pr-url = final.callPackage ./derivations/gh-pr-url {};
         gh-rebase-pr = final.callPackage ./derivations/gh-rebase-pr {};
         wlman = final.callPackage ./derivations/wlman {};
         check-certificate-revocation = final.callPackage ./derivations/check-certificate-revocation {};

home/gh.nix

@@ -13,6 +13,7 @@
     extensions = [
       pkgs.gh-dash
       pkgs.gh-repo-url
+      pkgs.gh-pr-url
       pkgs.gh-rebase-pr
       pkgs.gh-markdown-preview
     ];