playwright-test: Add PLAYWRIGHT_BROWSERS_PATH to build environment (#368391)

pkgs/development/python-modules/playwright/default.nix

@@ -13,6 +13,9 @@
   setuptools-scm,
   playwright-driver,
   nixosTests,
+  writeText,
+  runCommand,
+  pythonPackages,
   nodejs,
 }:
 
@@ -81,6 +84,16 @@ buildPythonPackage rec {
     pyee
   ];
 
+  setupHook = writeText "setupHook.sh" ''
+    addBrowsersPath () {
+      if [[ ! -v PLAYWRIGHT_BROWSERS_PATH ]] ; then
+        export PLAYWRIGHT_BROWSERS_PATH="${playwright-driver.browsers}"
+      fi
+    }
+
+    addEnvHooks "$targetOffset" addBrowsersPath
+  '';
+
   postInstall = ''
     ln -s ${driver} $out/${python.sitePackages}/playwright/driver
   '';
@@ -96,6 +109,9 @@ buildPythonPackage rec {
       {
         driver = playwright-driver;
         browsers = playwright-driver.browsers;
+        env = runCommand "playwright-env-test" {
+          buildInputs = [ pythonPackages.playwright ];
+        } "python ${./test.py}";
       }
       // lib.optionalAttrs stdenv.hostPlatform.isLinux {
         inherit (nixosTests) playwright-python;

pkgs/development/python-modules/playwright/test.py

@@ -0,0 +1,10 @@
+import os
+import sys
+
+from playwright.sync_api import sync_playwright
+
+with sync_playwright() as p:
+    browser = p.chromium.launch()
+    context = browser.new_context()
+with open(os.environ["out"], "w") as f:
+    f.write("OK")

pkgs/development/web/playwright/driver.nix

@@ -12,6 +12,7 @@
   makeFontsConf,
   makeWrapper,
   runCommand,
+  writeText,
   cacert,
 }:
 let
@@ -188,9 +189,27 @@ let
       runHook postInstall
     '';
 
+    setupHook = writeText "setupHook.sh" ''
+      addBrowsersPath () {
+        if [[ ! -v PLAYWRIGHT_BROWSERS_PATH ]] ; then
+          export PLAYWRIGHT_BROWSERS_PATH="${playwright-core.passthru.browsers}"
+        fi
+      }
+
+      addEnvHooks "$targetOffset" addBrowsersPath
+    '';
+
     meta = playwright.meta // {
       mainProgram = "playwright";
     };
+
+    passthru.tests.env = runCommand "playwright-core-env-test" {
+      buildInputs = [
+        nodejs
+        playwright-core
+        playwright-test
+      ];
+    } "node ${./test.js}";
   });
 
   browsers = lib.makeOverridable (

pkgs/development/web/playwright/test.js

@@ -0,0 +1,8 @@
+const playwright = require('playwright');
+const fs = require('fs');
+playwright.chromium.launch()
+    .then((browser) => {
+        console.log('OK');
+        fs.writeFileSync(process.env.out, '');
+        process.exit(0);
+    });