[PATCH 1 of 5 RFC] phases: use constants for phase values

[Gregory Szorc]

This one isn't radical and could be queued without much thought.

On Mon, Feb 15, 2016 at 6:03 PM, Gregory Szorc <gregory.szorc at gmail.com>
wrote:

> # HG changeset patch
> # User Gregory Szorc <gregory.szorc at gmail.com>
> # Date 1455583792 28800
> #      Mon Feb 15 16:49:52 2016 -0800
> # Node ID 8449ef66f732a71008dc887ffd6efbfb6dc64ee0
> # Parent  638dcaf3874940349d04f3369ddddc05fd9d5388
> phases: use constants for phase values
>
> Magic numbers hinder readability.
>
> diff --git a/mercurial/phases.py b/mercurial/phases.py
> --- a/mercurial/phases.py
> +++ b/mercurial/phases.py
> @@ -430,21 +430,21 @@ def analyzeremotephases(repo, subset, ro
>      # build list from dictionary
>      draftroots = []
>      nodemap = repo.changelog.nodemap # to filter unknown nodes
>      for nhex, phase in roots.iteritems():
>          if nhex == 'publishing': # ignore data related to publish option
>              continue
>          node = bin(nhex)
>          phase = int(phase)
> -        if phase == 0:
> +        if phase == public:
>              if node != nullid:
>                  repo.ui.warn(_('ignoring inconsistent public root'
>                                 ' from remote: %s\n') % nhex)
> -        elif phase == 1:
> +        elif phase == draft:
>              if node in nodemap:
>                  draftroots.append(node)
>          else:
>              repo.ui.warn(_('ignoring unexpected root from remote: %i
> %s\n')
>                           % (phase, nhex))
>      # compute heads
>      publicheads = newheads(repo, subset, draftroots)
>      return publicheads, draftroots
>
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