[MacPorts] #56195: cargo downloads files during build phase

[MacPorts]

#56195: cargo downloads files during build phase
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 Reporter:  MarcusCalhoun-Lopez  |      Owner:  sean@…
     Type:  defect               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:
 Keywords:  haspatch             |       Port:  cargo
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 Attached is a patch that prevents cargo from downloading files during the
 build phase.[[BR]]
 Unfortunately, I was also attempting to allow cargo to build universal,
 and the two fixes got mixed together.[[BR]]
 If need be, I can try to separate the two changes.

 The strategy used in the patch file is essentially the same as used by
 [https://gitweb.gentoo.org/repo/gentoo.git/tree/dev-
 util/cargo/cargo-0.24.0.ebuild gentoo].[[BR]]
 The redefinition of {{{portfetch::assemble_url}}} is an extremely ugly
 hack, but even gentoo had to do something similar with the function
 [https://gitweb.gentoo.org/repo/gentoo.git/tree/eclass/cargo.eclass
 cargo_crate_uris].

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Ticket URL: <https://trac.macports.org/ticket/56195>
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