chore: update readme upon api update (microsoft#308)

Author: pavelfeldman

README.md

@@ -6,9 +6,9 @@ Playwright is a Python library to automate [Chromium](https://www.chromium.org/H
 
 |          | Linux | macOS | Windows |
 |   :---   | :---: | :---: | :---:   |
-| Chromium <!-- GEN:chromium-version -->86.0.4238.0<!-- GEN:stop --> | ✅ | ✅ | ✅ |
-| WebKit 14.0 | ✅ | ✅ | ✅ |
-| Firefox <!-- GEN:firefox-version -->80.0b8<!-- GEN:stop --> | ✅ | ✅ | ✅ |
+| Chromium <!-- GEN:chromium-version -->88.0.4324.0<!-- GEN:stop --> | ✅ | ✅ | ✅ |
+| WebKit <!-- GEN:webkit-version -->14.0<!-- GEN:stop --> | ✅ | ✅ | ✅ |
+| Firefox <!-- GEN:firefox-version -->83.0<!-- GEN:stop --> | ✅ | ✅ | ✅ |
 
 Headless execution is supported for all browsers on all platforms.
 

scripts/update_api.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+python scripts/update_versions.py
+
 function update_api {
     echo "Generating $1"
     file_name="$1"

scripts/update_versions.py

@@ -0,0 +1,15 @@
+import re
+from playwright import sync_playwright
+
+with sync_playwright() as p:
+    r = open("README.md", "r")
+    text = r.read()
+    for browser_type in [p.chromium, p.firefox, p.webkit]:
+        rx = re.compile(r"<!-- GEN:" + browser_type.name + r"-version -->([^<]+)<!-- GEN:stop -->")
+        browser = browser_type.launch()
+        text = rx.sub(f"<!-- GEN:{browser_type.name}-version -->{browser.version}<!-- GEN:stop -->", text)
+        browser.close()
+
+    w = open("README.md", "w")
+    w.write(text)
+    w.close()