When using compute_source_path to determine the full path of an
asset, if our source begins with '/', we don't want to include
the directory. Examples are illustrative:
> compute_source_path("foo", "stylesheets", "css")
=> "/Users/steve/src/my_app/public/stylesheets/foo.css"
> compute_source_path("/foo", "stylesheets", "css")
=> "/Users/steve/src/my_app/public/foo.css"
Before this patch, the second example would return the same as the
first.
Fixes#5680.
Windows doesn't allow `\ / : * ? " < > |` in filenames so create
the fixture files at runtime and ignore the incompatible ones when
running on Windows.
RFC 3986[1] allows sub-delim characters in path segments unencoded,
however Rack::File requires them to be encoded so we use URI's
unescape method to leave them alone and then escape them again.
Also since the path gets passed to Dir[] we need to escape any glob
characters in the path.
[1]: http://www.ietf.org/rfc/rfc3986.txt
An exception will be raised if a local javascript/stylesheet file included
by the stylesheet_link_tag or javascript_include_tag can not be found.
When caching is enabled, we use atomic_write to ensure that the cache file
is not created with zero length.
Signed-off-by: Michael Koziarski <michael@koziarski.com>
[#2738 state:committed]
