[tor-bugs] #1922 [Tor]: torrc.d-style configuration directories

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#1922: torrc.d-style configuration directories
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     Reporter:  aa138346     |      Owner:
         Type:  enhancement  |     Status:  needs_review
     Priority:  major        |  Milestone:  Tor: 0.2.8.x-final
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-client
Actual Points:               |  Parent ID:
       Points:  medium       |    Sponsor:
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Comment (by nickm):

 Here's how to implement it:

 Main:
  * In config_get_lines(), add a recursive call to config_get_lines
 whenever it sees a line where `k` is %include. Add the returned items to
 the end of the list that's getting built.
  * Add a recursionlevel argument to config_get_lines().  When you call
 config_get_lines from inside config_get_lines, call it with a
 recursionlevel one level higher.  If the recursionlevel is >= 32, return
 an error.

 Controller-side:
   * Set a flag in the or_options_t somehow to say whether %include was
 used.
   * If the flag is true, then in handle_control_saveconf(), refuse to save
 unless there is an extra item in the arguments to saveconf, and that
 argument is true.
   * Make a new entry in getinfo_helper_misc() to handle a "config-can-
 saveconf".  Make it yield "1" if saveconf would work and 0 otherwise.
   * Add config-can-saveconf to getinfo_items.

 Documentation:
   * Describe this all in tor.1.txt.in
   * Describe the controller parts in control-spec.txt

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1922#comment:54>
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