fix: vendor strip-ansi for gateway build

Author: joshp123

flake.nix

@@ -27,6 +27,7 @@
             fi
             exec node-gyp "$@"
           '';
+          stripAnsiSrc = ./nix/vendor/strip-ansi;
         in {
           clawdbot-gateway = prev.clawdbot-gateway.overrideAttrs (old: {
             env = (old.env or {}) // {
@@ -70,18 +71,14 @@
               ${old.installPhase}
               pi_dir="$(find "$out/lib/clawdbot/node_modules/.pnpm" -maxdepth 1 -type d -name "@mariozechner+pi-coding-agent@*" | head -n1)"
               if [ -z "$pi_dir" ]; then
-                echo "pi-coding-agent directory not found for strip-ansi link" >&2
-                exit 1
-              fi
-              strip_src="$(find "$out/lib/clawdbot/node_modules/.pnpm" -maxdepth 2 -type d -path "*strip-ansi@*/node_modules/strip-ansi" | head -n1)"
-              if [ -z "$strip_src" ]; then
-                echo "strip-ansi not found in pnpm store" >&2
+                echo "pi-coding-agent directory not found for strip-ansi shim" >&2
                 exit 1
               fi
               target="$pi_dir/node_modules/strip-ansi"
               rm -rf "$target"
               mkdir -p "$(dirname "$target")"
-              ln -s "$strip_src" "$target"
+              mkdir -p "$target"
+              cp -R ${stripAnsiSrc}/* "$target"/
             '';
           });
         };

nix/vendor/strip-ansi/index.js

@@ -0,0 +1,15 @@
+const ansiRegex = () =>
+  new RegExp(
+    '[\\u001B\\u009B][[\\]()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-ORZcf-nq-uy=><]',
+    'g'
+  );
+
+export default function stripAnsi(input) {
+  if (typeof input !== 'string') {
+    throw new TypeError('Expected a string');
+  }
+
+  return input.replace(ansiRegex(), '');
+}
+
+export { stripAnsi };

nix/vendor/strip-ansi/package.json

@@ -0,0 +1,7 @@
+{
+  "name": "strip-ansi",
+  "version": "0.0.0",
+  "type": "module",
+  "main": "./index.js",
+  "exports": "./index.js"
+}