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Writing Tools using WebKit
- 1. Writing Tools using WebKit ARIYA HIDAYAT ENGINEERING DIRECTOR, SENCHA
- 2. whoami
- 3. Let’s Start the PARTY
- 4. Let’s Start the PARTY
- 6. forget to run the tests REGRESSION Unintentional Regression This is awesome!
- 7. forget to run the tests REGRESSION Unintentional Regression This is awesome!
- 8. Pre-commit hook to command line test runner
- 10. Capture to Image QWebPage page; QImage image(size, QImage::Format_ARGB32_Premultiplied); image.fill(Qt::transparent); QPainter p(&image); page.mainFrame()->render(&p); p.end(); image.save(fileName);
- 11. Test Runner specrunner SpecRunner.html 5 specs, 0 failures in 0.013s specrunner SpecRunner.html FAIL: 5 specs, 1 failure in 0.014s
- 12. Network Log 28: GET http://www.google.com/m/gp 292: Response 200 application/xhtml+xml; charset=UTF-8 0 bytes http://www.google.com/m/gp 311: GET data:image/gif;base64,R0lGODlhiA... 312: GET data:image/gif;base64,R0lGODlhJA... 312: GET data:image/gif;base64,R0lGODlhGA... 312: Response 0 image/gif 3611 bytes data:image/gif;base64,R0lGODlhiA... 312: Finish fail data:image/gif;base64,R0lGODlhiA... 312: Response 0 image/gif 284 bytes data:image/gif;base64,R0lGODlhJA... 312: Finish fail data:image/gif;base64,R0lGODlhJA... 312: Response 0 image/gif 178 bytes data:image/gif;base64,R0lGODlhGA... 312: Finish fail data:image/gif;base64,R0lGODlhGA... 317: Response 200 application/xhtml+xml; charset=UTF-8 0 bytes http://www.google.com/m/gp 324: Finish fail http://www.google.com/m/gp 328: GET http://www.google.com/m/gn/user?... 329: Finish success http://www.google.com/m/gn/user?...
- 16. THANK YOU!
- 18. ADDENDUM
- 20. 0 10000 20000 30000 40000 50000 60000 70000 80000 0 1 2 3 4 5 6 7 8 9 10 Revisions Years History
- 21. 0 10000 20000 30000 40000 50000 60000 70000 80000 0 1 2 3 4 5 6 7 8 9 10 Revisions Years History ~2000 commits/month
- 22. Level of Involvement Contributor Committer ≈ 130 Reviewer ≈ 80 accept or reject patches checks in reviewed patches after 10-20 patches after 80 patches
- 25. Components of WebKit WebKit Library JavaScriptCore WebCore HTML rendering SVG DOM CSS
- 26. Platform Abstractions Network Unicode Clipboard Graphics Theme Events Thread Geolocation Timer
- 27. Different “Ports” WebCore graphics Mac Chromium Qt Gtk CoreGraphics Skia QPainter Cairo graphics stack GraphicsContext
- 28. Web Browsers Safari WebCore + JavaScriptCore Eclair WebCore + V8 Chrome Froyo
- 30. How Fresh? Fall 2010Spring 2010 Chrome 7 534.7 Safari 5 533.18 Android 2.2 533.1 Safari 4 528.16 AIR 2.5 531.9 mid 2009
- 31. Extensive Tests the rest 229 MB tests 904 MB≈ 20,000 tests
- 32. Workflow 1 Every commit needs to be reviewed 2 Broken commit must be reverted
- 33. Workflow 1 Every commit needs to be reviewed 2 Broken commit must be reverted quality control zero-regression policy
- 34. Get + Build + Launch
- 35. Requirements • Subversion or Git • C++ compiler • Perl • Python • Various SDK
- 36. Using Subversion svn checkout http://svn.webkit.org/repository/ webkit/trunk webkit cd webkit ≈ 880 MB .svn
- 37. Using git git clone git://git.webkit.org/WebKit.git cd WebKit ≈ 1.2 GB .git
- 38. Build WebKitTools/Scripts/build-webkit --qt for Qt, --gtk for Gtk+ --debug for “Debug” mode
- 39. Launch WebKitTools/Scripts/run-launcher --qt for Qt, --gtk for Gtk+ --debug for “Debug” mode