[MacPorts] #58553: antigen @2.2.3: new port

[MacPorts]

#58553: antigen @2.2.3: new port
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  Reporter:  FranklinYu  |      Owner:  (none)
      Type:  request     |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  antigen     |
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Comment (by harens):

 Hi Franklin. Thanks for the port request, and apologies for the delay on
 this.

 I just had a look at it to attempt to write a portfile, and it
 unfortunately seems like Antigen is now a dead project. The last release
 was pushed in early 2018, and there hasn't been a commit since late 2019.

 Although there hasn't been an official statement, there's an issue
 discussing it here: https://github.com/zsh-users/antigen/issues/725.

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Ticket URL: <https://trac.macports.org/ticket/58553#comment:1>
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