Bug 91212 – ruby1.9 fails in PrettyPatch.rb with invalid byte sequence in UTF-8

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Simon Pena]

After upgrading the setup in one of the GTK 64bits bots, we found that if ruby1.9 is used instead of ruby1.8, the following error happens when running test-webkitpy:

/home/spenap/Projects/WebKit/Websites/bugs.webkit.org/PrettyPatch/PrettyPatch.rb:108:in `gsub': invalid byte sequence in UTF-8 (ArgumentError)
	from /home/spenap/Projects/WebKit/Websites/bugs.webkit.org/PrettyPatch/PrettyPatch.rb:108:in `normalize_line_ending'
	from /home/spenap/Projects/WebKit/Websites/bugs.webkit.org/PrettyPatch/PrettyPatch.rb:19:in `prettify'
	from /home/spenap/Projects/WebKit/Websites/bugs.webkit.org/PrettyPatch/prettify.rb:26:in `<main>'

This is caused by the new encoding engine that Ruby 1.9 uses (see http://blog.grayproductions.net/articles/ruby_19s_string)

I took a look at http://smyck.net/2011/05/13/files-with-mixed-and-invalid-encodings-in-ruby/ to work around it, but iconv will be deprecated in the future, and String#encode is recommended instead. However, by looking at http://blog.segment7.net/2010/12/17/from-iconv-iconv-to-string-encode, the new alternative is not as straight-forward as using iconv.

We're currently keeping ruby in version 1.8, which works as expected.

[Simon Pena]

CCing Caio, who added the normalize_line_ending method originally.

[Simon Pena]

Created attachment 152212 [details]
Patch

[Simon Pena]

(In reply to comment #2)
> Created an attachment (id=152212) [details]
> Patch

I've attached a patch using Iconv, although, as mentioned in comment #0, it should be better to use String#encode.

[Hajime Morrita]

(In reply to comment #3)
> (In reply to comment #2)
> > Created an attachment (id=152212) [details] [details]
> > Patch
> 
> I've attached a patch using Iconv, although, as mentioned in comment #0, it should be better to use String#encode.
Let's do what you think the best :-)

[Simon Pena]

Comment on attachment 152212 [details]
Patch

OK, I'll try to come up with a proper fix later.

[Simon Pena]

Created attachment 166628 [details]
Patch

[Simon Pena]

This new version of the patch uses the "proper" implementation when Ruby's version is >= 1.9 (using the string encode method) and keeps the current one for 1.8.

[Hajime Morrita]

Comment on attachment 166628 [details]
Patch

Wow, I didn't know that encode() support :fallback option.

[WebKit Review Bot]

Comment on attachment 166628 [details]
Patch

Clearing flags on attachment: 166628

Committed r130276: <http://trac.webkit.org/changeset/130276>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.