various changes:

- re-enable Nim's cache globally
- add a new "nimcache" subdir for the libraries
- make sure Go doesn't try to link libnimbus.a in the dynamically linked
  wrapper example
- always delete the static archive before recreating it
- rename wrapper.nim/.h to libnimbus.nim/.h
- better hygiene in libnimbus.h (include guards and C++ support)
- remove MainnetBootnodes copy, since we do include "config.nim" after all

Makefile

@@ -199,7 +199,7 @@ test-libp2p-daemon: | vendor/go/bin/p2pd deps
 
 libnimbus.so: | build deps nat-libs
 	echo -e $(BUILD_MSG) "build/$@" && \
-		$(ENV_SCRIPT) nim c --app:lib --noMain -d:"chronicles_sinks=textlines" --debuginfo --opt:speed --lineTrace:off $(NIM_PARAMS) -o:build/$@.0 wrappers/wrapper.nim && \
+		$(ENV_SCRIPT) nim c --app:lib --noMain --nimcache:nimcache/libnimbus $(NIM_PARAMS) -o:build/$@.0 wrappers/libnimbus.nim && \
 		rm -f build/$@ && \
 		ln -s $@.0 build/$@
 
@@ -207,11 +207,12 @@ wrappers: | build deps nat-libs libnimbus.so go-checks
 	echo -e $(BUILD_MSG) "build/C_wrapper_example" && \
 		$(CC) wrappers/wrapper_example.c -Wl,-rpath,'$$ORIGIN' -Lbuild -lnimbus -lm -g -o build/C_wrapper_example
 	echo -e $(BUILD_MSG) "build/go_wrapper_example" && \
-		go build -o build/go_wrapper_example wrappers/wrapper_example.go
+		go build -linkshared -o build/go_wrapper_example wrappers/wrapper_example.go
 
 libnimbus.a: | build deps nat-libs
 	echo -e $(BUILD_MSG) "build/$@" && \
-		$(ENV_SCRIPT) nim c --app:staticlib --noMain $(NIM_PARAMS) -o:build/$@ wrappers/wrapper.nim
+		rm -f build/$@ && \
+		$(ENV_SCRIPT) nim c --app:staticlib --noMain --nimcache:nimcache/libnimbus $(NIM_PARAMS) -o:build/$@ wrappers/libnimbus.nim
 
 wrappers-static: | build deps nat-libs libnimbus.a go-checks
 	echo -e $(BUILD_MSG) "build/C_wrapper_example_static" && \

nim.cfg

@@ -17,7 +17,3 @@
 --excessiveStackTrace:on
 -d:metrics # enable metric collection
 
-# Required to make up for the compiler's inability to invalidate the C file
-# (and object) cache on different command line arguments.
---forceBuild
-

wrappers/libnimbus.h

@@ -1,6 +1,13 @@
+#ifndef __LIBNIMBUS_H__
+#define __LIBNIMBUS_H__
+
 #include <stdint.h>
 #include <stddef.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct {
   uint8_t* decoded;
   size_t decodedLen;
@@ -30,3 +37,10 @@ void nimbus_poll();
 
 void nimbus_post(const char* channel, const char* payload);
 void nimbus_subscribe(const char* channel, received_msg_handler msg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //__LIBNIMBUS_H__
+

wrappers/libnimbus.nim

@@ -28,22 +28,6 @@ proc `$`*(digest: SymKey): string =
   for c in digest: result &= hexChar(c.byte)
 
 const
-  # Can't import config.nim from here..
-  # TODO: refactor in nimbus, then move this.
-  MainnetBootnodes = [
-    # Ethereum Foundation Go Bootnodes
-    "enode://d860a01f9722d78051619d1e2351aba3f43f943f6f00718d1b9baa4101932a1f5011f16bb2b1bb35db20d6fe28fa0bf09636d26a87d31de9ec6203eeedb1f666@18.138.108.67:30303",   # bootnode-aws-ap-southeast-1-001
-    "enode://22a8232c3abc76a16ae9d6c3b164f98775fe226f0917b0ca871128a74a8e9630b458460865bab457221f1d448dd9791d24c4e5d88786180ac185df813a68d4de@3.209.45.79:30303",     # bootnode-aws-us-east-1-001
-    "enode://ca6de62fce278f96aea6ec5a2daadb877e51651247cb96ee310a318def462913b653963c155a0ef6c7d50048bba6e6cea881130857413d9f50a621546b590758@34.255.23.113:30303",   # bootnode-aws-eu-west-1-001
-    "enode://279944d8dcd428dffaa7436f25ca0ca43ae19e7bcf94a8fb7d1641651f92d121e972ac2e8f381414b80cc8e5555811c2ec6e1a99bb009b3f53c4c69923e11bd8@35.158.244.151:30303",  # bootnode-aws-eu-central-1-001
-    "enode://8499da03c47d637b20eee24eec3c356c9a2e6148d6fe25ca195c7949ab8ec2c03e3556126b0d7ed644675e78c4318b08691b7b57de10e5f0d40d05b09238fa0a@52.187.207.27:30303",   # bootnode-azure-australiaeast-001
-    "enode://103858bdb88756c71f15e9b5e09b56dc1be52f0a5021d46301dbbfb7e130029cc9d0d6f73f693bc29b665770fff7da4d34f3c6379fe12721b5d7a0bcb5ca1fc1@191.234.162.198:30303", # bootnode-azure-brazilsouth-001
-    "enode://715171f50508aba88aecd1250af392a45a330af91d7b90701c436b618c86aaa1589c9184561907bebbb56439b8f8787bc01f49a7c77276c58c1b09822d75e8e8@52.231.165.108:30303",  # bootnode-azure-koreasouth-001
-    "enode://5d6d7cd20d6da4bb83a1d28cadb5d409b64edf314c0335df658c1a54e32c7c4a7ab7823d57c39b6a757556e68ff1df17c748b698544a55cb488b52479a92b60f@104.42.217.25:30303",   # bootnode-azure-westus-001
-    # Ethereum Foundation C++ Bootnodes
-    "enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba81760f39d0701ef1d8f89cc1fbd2cacba0710a12cd5314d5e0c9021aa3637f9@5.1.83.226:30303"      # DE
-  ]
-
   # Whisper nodes taken from:
   # curl -s  https://raw.githubusercontent.com/status-im/status-react/develop/resources/config/fleets.json | jq '"\"" + .fleets["eth.beta"].whisper[] + "\","' -r
   WhisperNodes* = [

wrappers/wrapper_example.c

@@ -4,7 +4,7 @@
 #include <unistd.h>
 #include <time.h>
 
-#include "wrapper.h"
+#include "libnimbus.h"
 
 void NimMain();
 

wrappers/wrapper_example.go

@@ -7,7 +7,7 @@ import (
 )
 
 // #cgo LDFLAGS: -Wl,-rpath,'$ORIGIN' -L${SRCDIR}/../build -lnimbus -lm
-// #include "wrapper.h"
+// #include "libnimbus.h"
 import "C"
 
 // Arrange that main.main runs on main thread.