[augeas-devel] [Augeas] #216: Support path context for aug_srun

[Augeas]

#216: Support path context for aug_srun
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  Reporter:  domcleal     |       Owner:  lutter  
      Type:  enhancement  |      Status:  new     
  Priority:  major        |   Milestone:  next    
 Component:  Augeas       |     Version:  devel   
Resolution:               |    Keywords:  aug_srun
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Comment (by domcleal):

 Replying to [comment:1 lutter]:
 > I was going to suggest that you can just use 'defvar ctx
 /files/etc/fstab' and then 'set $ctx/*[file = '/']/opt noatime', but that
 doesn't quite work, since the defvar will immediately set ctx to the node
 '/files/etc/fstab', and if that does not exist yet, the 'set' will fail.

 Unfortunately that still means we have to parse commands, or have users
 modify their commands (which I support, given it's a bit more explicit).

 > I guess we need a new 'context' API call and command that mimicks the
 textual substitution that the puppet provider does. Alternatively, we
 could just use a special node, say '/augeas/context' that will always be
 prepended to relative paths.

 This makes sense, but at what level would Augeas support it?  As part of
 aug_srun only, or at a lower level so even the API calls would heed it?
 This solution sounds best to me.

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Ticket URL: <https://fedorahosted.org/augeas/ticket/216#comment:2>
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