Jack Nagel 57560c03e6 Handle invalid names in download strategies
When subformulae are initialized without a name parameter, Homebrew
assigns the name "__UNKNOWN__". This may cause collisions in the cache.

Currently CurlDownloadStrategy and its descendants handles this by
extracting the basename form the URL and using that as the cached
filename. However, other strategies simply raise an exception.

We can improve the other strategies by URL-encoding the URL string and
using that as the cached directory name.

Note that this happens very rarely, especially now that resources (which
always have a name) are preferred to subformulae. The most common case
is a subformula that specifies a head download.

Closes Homebrew/homebrew#22949.
2013-09-30 22:56:02 -05:00
2013-09-24 20:43:34 -07:00
2013-04-06 17:32:47 +01:00
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2013-09-03 18:06:13 +01:00

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