[MacPorts] #58529: Port command, in interactive mode, doesn't load the editline config file

[MacPorts]

#58529: Port command, in interactive mode, doesn't load the editline config file
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  Reporter:  SenileFelineS  |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  base           |    Version:  2.5.4
Resolution:                 |   Keywords:
      Port:                 |
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Description changed by SenileFelineS:

Old description:

> See here for background:
> https://echelog.com/logs/browse/macports/1558908000
>
> The initial issue was that the key combination {{{Fn}}}+{{{Delete}}}
> should forward-delete text in the command line while running {{{port}}}
> interactively in the shell - however, it instead produces a tilde
> character {{{~}}}. The attempt to fix this in {{{~/.editrc}}} was
> unsuccessful. (per user jmroot)
>
> In attempting to find out why {{{port}}} has this behavior, it was
> realized that Apple's libedit doesn't actually respect the $EDITRC
> environment variable. As a result, it only looks at the default
> $HOME/.editrc, and because {{{port}}} mucks around with/alters $HOME, the
> user's {{{~/.editrc}}} is not found. (per user apjanke)

New description:

 See here for background:
 https://echelog.com/logs/browse/macports/1558908000

 The initial issue was that the key combination {{{Fn}}}+{{{Delete}}}
 should forward-delete text in the command line while running {{{port}}}
 interactively in the shell - however, it instead produces a tilde
 character {{{~}}}. The attempt to fix this in {{{~/.editrc}}} was
 unsuccessful. (per user jmroot)

 In attempting to find out why {{{port}}} has this behavior, it was
 realized that Apple's libedit doesn't actually respect the {{{$EDITRC}}}
 environment variable. As a result, it only looks at the default
 {{{$HOME/.editrc}}}, and because {{{port}}} mucks around with/alters
 {{{$HOME}}}, the user's {{{~/.editrc}}} is not found. (per user apjanke)

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Ticket URL: <https://trac.macports.org/ticket/58529#comment:5>
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