[tor-bugs] #25549 [Core Tor/Tor]: Add tor CI config for AppVeyor

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#25549: Add tor CI config for AppVeyor
-------------------------------------------------+-------------------------
 Reporter:  isis                                 |          Owner:  saper
     Type:  enhancement                          |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.4.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-ci, tor-testing, 034-roadmap-    |  Actual Points:
  subtask, 034-triage-20180328,                  |
  034-included-20180328                          |
Parent ID:  #25550                               |         Points:  2
 Reviewer:  isis, catalyst                       |        Sponsor:
                                                 |  Sponsor3
-------------------------------------------------+-------------------------

Comment (by saper):

 Updated appveyor.yml:
 http://repo.or.cz/tor/appveyor.git/blob/8807cfb47251059482fea948b5be1d7da60888dc:/appveyor.yml

 Build logs on AppVeyor:
 https://ci.appveyor.com/project/saper/appveyor/build/1.0.44

 * `make check` works
 * there is no need to --disable-gcc-hardening, removed
 * AppVeyor understands separate build and test phases, therefore `make`
 and `make install` are kept separate from `make check`

 Few things I do not like about the current `make check`:

 * main test produces a lot of sub-tests that are reported as one in the
 summary (and to find details one needs `test-suite.log` or `test.log`
 file). Simple `make test` output was much more readable. This can be fixed
 by using a custom automake test driver.
 * Tinytest produces a messy output like:

 {{{
 geoip/load_file: [forking]
   FAIL ../src/test/test_geoip.c:409: Unable to load geoip from
 "/c/projects/appveyor/src/config/geoip"
   FAIL ../src/test/test_geoip.c:411: assert(0 OP_EQ rv): 0 vs -1
   [load_file FAILED]
 }}}

 I hope it can be parsed somehow to be displayed in the AppVeyor's test
 output tab.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25549#comment:11>
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