Omar Padron 0784ec1a6d bugfix: fetch prefers to fetch local mirrors over remote resources (#13545) ...

- [x] insert at beginning of list so fetch grabs local mirrors before remote resources
- [x] update the S3FetchStrategy so that it throws a SpackError if the fetch fails.  
      Before, it was throwing URLError, which was not being caught in stage.py.
- [x] move error handling out of S3FetchStrategy and into web_util.read_from_url()
- [x] pass string instead of URLError to SpackWebError

2019-11-03 17:11:30 -08:00

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spack

bugfix: fetch prefers to fetch local mirrors over remote resources (#13545)

2019-11-03 17:11:30 -08:00