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  • Brad King's avatar
    ExternalData: Warn on missing file instead of failing · ccd29b9a
    Brad King authored
    When the primary source tree path named by a DATA{} reference does not
    exist, produce an AUTHOR_WARNING instead of a FATAL_ERROR.  This is
    useful when writing a new DATA{} reference to a test reference output
    that has not been created yet.  This way the developer can run the test,
    manually verify the output, and then copy it into place to provide the
    reference and eliminate the warning.
    
    If the named source tree path is expected to be a file but exists as a
    directory, we still need to produce a FATAL_ERROR.
    ccd29b9a