Add examples to CI (build only for now) (#143)

.appveyor.yml

@@ -47,6 +47,7 @@ build_script:
 
 test_script:
   - nimble test
+  - nimble examples_build
 
 deploy: off
 

.travis.yml

@@ -50,4 +50,4 @@ install:
 script:
   - nimble install -y --depsOnly
   - nimble test
-
+  - nimble examples_build

azure-pipelines.yml

@@ -188,4 +188,5 @@ steps:
       gcc -v
 
       nimble test
+      nimble examples_build
     displayName: 'Testing the package'

libp2p.nimble

@@ -23,7 +23,14 @@ proc runTest(filename: string) =
   exec "nim c -r --opt:speed -d:debug --verbosity:0 --hints:off tests/" & filename
   rmFile "tests/" & filename.toExe
 
+proc buildSample(filename: string) =
+  exec "nim c --opt:speed --threads:on -d:debug --verbosity:0 --hints:off examples/" & filename
+  rmFile "examples" & filename.toExe
+
 task test, "Runs the test suite":
   runTest "testnative"
   runTest "testdaemon"
   runTest "testinterop"
+
+task examples_build, "Build the samples":
+  buildSample "directchat"