[MacPorts] #60256: 'port bump' does not update checksums for cargo crates

[MacPorts]

#60256: 'port bump' does not update checksums for cargo crates
-------------------------+--------------------
 Reporter:  lhaeger      |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:  2.6.2
 Keywords:               |       Port:
-------------------------+--------------------
 When updating a port that uses the `cargo` or `cargo_fetch` portgroups and
 has `cargo.crates` list required crates with their checksums, those will
 not be updated by `port bump`.
 I should be relatively easy to implement such an enhancement, though, and
 make maintaining cargo based ports a lot easier. Basically what has to be
 done today is this

 1. clear `cargo.crates`
 2. update the port version
 3. run `port bump`
 4. run `port extract`
 5. run `grep checksum ${worksrcdir}/Cargo.lock | perl -pe 's/"checksum
 (\S*) (\S*) \S* = "(\S*)"/    $1 $2 $3 \\/'`
 6. set `cargo.crate` to the output of 5. (without the trailing "\")

 https://github.com/macports/macports-
 ports/blob/master/_resources/port1.0/group/cargo_fetch-1.0.tcl has a few
 more details, but that's basically what needs to be added to `port bump`if
 `cargo.crates` is set.

-- 
Ticket URL: <https://trac.macports.org/ticket/60256>
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