[#ROR-211] Unable to retrieve local gem listing - ASAP

Aptana RadRails

Unable to retrieve local gem listing

Created: 05/Dec/07 09:49 AM Updated: 26/Dec/07 09:08 AM

Component/s:

RubyGems

Affects Version/s:

0.9.1

Fix Version/s:

1.0.0, 1.0.0 RC 1

Importance:	Critical
Studio Install Type:	N/A
Participants:	Chris Williams

Description

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From ~~ROR-207~~. Some users are seeing blank lists of installed gems in the RubyGems view. This can lead to other issues where we don't think that particular gems are installed (code completion, go to declaration, prompting to install gem they already have, etc).

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Chris Williams - 05/Dec/07 09:52 AM

I think this is related to ~~ROR-183~~. I can't regularly reproduce either myself, unless I'm debugging them.

I think what's happening is that in both cases we're trying to launch a process to gather the listings, then read that back in from a temp file or a Stream and pare the values out. I don't think we can reliably grab the output properly, it happens to work OK on my machine when not debugging, but it seems to be a timing issue.

I need to find some other way to grab the output of these launches!

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Chris Williams - 05/Dec/07 10:34 AM

I included a possible fix. Before to grab the output we'd add ourselves as a stream listener, which history tells me is not really reliable (thanks Eclipse! This is why we couldn't get the PID for a launched server and kill webrick properly on non-win systems for a long time).

Now I added a "backup" plan B. We also tell it to capture output to a file (which seems to be more reliable), and then we read the file's contents if we received no output from listening to the stream.