Add possibility to stop a karma server

When you start testacular with singleRun=false from within a script (Eg. build script) there is no way to stop it again (apart from killing the process manually).

Someting like

node testacular stop 9876

would be nice.

[jasiedu]

It is not a high priority to sto a server that you started? Wow!

[joeflack4]

@vojtajina Still staying open for me

(datalab) joe:datalab joeflack4$ ./node_modules/karma/bin/karma start --single-run
02 10 2018 12:40:51.691:WARN [watcher]: Pattern "/Users/joeflack4/projects/datalab/test/fixtures/**/*" does not match any file.
ℹ ｢wdm｣: Hash: 1af0291e2b7daf4c1038
Version: webpack 3.10.0
Time: 61ms
ℹ ｢wdm｣: Compiled successfully.
02 10 2018 12:40:51.712:WARN [watcher]: Pattern "/Users/joeflack4/projects/datalab/test/fixtures/**/*" does not match any file.
ℹ ｢wdm｣: Compiling...
ℹ ｢wdm｣: wait until bundle finished: noop
ℹ ｢wdm｣: wait until bundle finished: noop
ℹ ｢wdm｣: wait until bundle finished: noop
ℹ ｢wdm｣: wait until bundle finished: noop
ℹ ｢wdm｣: Hash: 80d465b0bcc75b9fc8d3
Version: webpack 3.10.0
Time: 1324ms
                               Asset     Size  Chunks                    Chunk Names
      test/javascripts/chart.test.js  1.01 MB       0  [emitted]  [big]  test/javascripts/chart.test
    test/javascripts/network.test.js   445 kB       1  [emitted]  [big]  test/javascripts/network.test
  test/javascripts/url-parse.test.js   380 kB       2  [emitted]  [big]  test/javascripts/url-parse.test
test/javascripts/definitions.test.js   407 kB       3  [emitted]  [big]  test/javascripts/definitions.test
    test/javascripts/utility.test.js   408 kB       4  [emitted]  [big]  test/javascripts/utility.test
   [7] ./node_modules/babel-runtime/helpers/classCallCheck.js 208 bytes {0} {1} {2} {3} {4} [built]
  [24] ./source/javascripts/utility.js 5.58 kB {0} {1} {3} {4} [built]
  [78] ./test/javascripts/chart.test.js 6.47 kB {0} [built]
  [79] ./node_modules/jquery/dist/jquery.js 272 kB {0} [built]
  [80] ./node_modules/chai/index.js 40 bytes {0} {1} {2} {3} {4} [built]
 [103] ./node_modules/chai-spies/chai-spies.js 20.5 kB {0} {1} {3} {4} [built]
 [104] ./source/javascripts/chart.js 25 kB {0} [built]
 [162] ./source/javascripts/url-parse.js 2.05 kB {0} {2} [built]
 [170] ./source/javascripts/definitions.js 1.99 kB {0} {3} [built]
 [177] ./env.js 1.21 kB {0} {1} [built]
 [182] ./test/javascripts/definitions.test.js 1.36 kB {3} [built]
 [183] ./test/javascripts/network.test.js 1.29 kB {1} [built]
 [184] ./source/javascripts/network.js 5.41 kB {1} [built]
 [186] ./test/javascripts/url-parse.test.js 1.43 kB {2} [built]
 [187] ./test/javascripts/utility.test.js 4.67 kB {4} [built]
    + 173 hidden modules
ℹ ｢wdm｣: Compiled successfully.
02 10 2018 12:40:55.725:INFO [karma]: Karma v2.0.5 server started at http://0.0.0.0:9876/

It just hangs there after starting the server. This is whether or not I do karma start --single-run or set the singleRun: true directly in the config.