D98: revset: support reading aliases from a .hgrevsets file

[yuja (Yuya Nishihara)]

yuja added a comment.


  > What else should we allow in here? Are there security concerns we should think through?
  
  Probably safe, but could be used for DoS attack:
  
  - `filesetalias` (not implemented)
  - `revsetalias`
  - `committemplate`
  - `templatealias`
  - `templates`
  
  Unsafe (should never be allowed):
  
  - `alias` (arbitrary command execution by shell alias or option like `bisect -c CMD`)
  
  Obviously, they are all unsafe depending on extension predicates/functions/keywords, such
  as a revset shelling out arbitrary inputs.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D98

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To: indygreg, #hg-reviewers
Cc: durin42, yuja, mharbison72, quark, mercurial-devel