manifest: Skip non-directories when resolving workspace members
#30
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Fixes #29
If globs provided in the
members
array resolve to files, even if none of its results are (symlinks to) directories or if the path is a relative path to a file without any globbing directives,cargo
skips it without error. Cargo only errors out if the glob (or again relative path) didn't resolve to any files at all (which is whatglob::glob()
should also be doing for us).It does however support symlinks, meaning we need to canonicalize every result to follow any symlinks before deducing if the entry is a directory that needs to be treated as a workspace member crate.