Add nimble task for building conformance suite

1 files changed, 14 insertions, 2 deletions

diff --git a/nimpb.nimble b/nimpb.nimble
index c009e67..e2a4168 100644
--- a/nimpb.nimble
+++ b/nimpb.nimble
@@ -3,7 +3,7 @@ author = "Oskari Timperi"
 description = "protobuf library for Nim"
 license = "MIT"
 
-skipDirs = @["examples", "tests"]
+skipDirs = @["examples", "tests", "protobuf-3.5.1"]
 
 bin = @["nimpb/compiler/nimpb_build"]
 
@@ -17,10 +17,22 @@ requires "nimpb_protoc"
 
 import ospaths, strformat
 
+task build_protobuf, "Download protobuf, build it and then build the conformance test suite":
+    if not fileExists("protobuf-all-3.5.1.zip"):
+        exec "wget https://github.com/google/protobuf/releases/download/v3.5.1/protobuf-all-3.5.1.zip"
+    if not dirExists("protobuf-3.5.1"):
+        exec "unzip protobuf-all-3.5.1.zip"
+    withDir "protobuf-3.5.1":
+        if not fileExists("Makefile"):
+            exec "./configure"
+        exec "make"
+        withDir "conformance":
+            exec "make"
+
 task run_conformance_tests, "Run the conformance test suite":
     var testDir = "tests/conformance"
     var proto = testDir / "test_messages_proto3.proto"
-    var testRunner = "../protobuf-3.5.1/conformance/conformance-test-runner"
+    var testRunner = "./protobuf-3.5.1/conformance/conformance-test-runner"
     exec &"./nimpb/compiler/nimpb_build -I={testDir} --out={testDir} {proto}"
     exec &"./nimpb/compiler/nimpb_build -I={testDir} --out={testDir} {testDir}/conformance.proto"
     exec &"nimble c {testDir}/conformance_nim.nim"