Configuration refactoring (#732)

move -d:nimRawSetjmp to nim.cfg
switch .cfg to .nims
add --skipParentCfg

Co-authored-by: Tanguy <tanguy@status.im>

.github/workflows/ci.yml

@@ -162,10 +162,6 @@ jobs:
 
       - name: Run tests
         run: |
-          if [[ "${{ matrix.target.os }}" == "windows" ]]; then
-            # https://github.com/status-im/nimbus-eth2/issues/3121
-            export NIMFLAGS="-d:nimRawSetjmp"
-          fi
           nim --version
           nimble --version
           nimble install_pinned

.github/workflows/multi_nim.yml

@@ -160,10 +160,6 @@ jobs:
 
       - name: Run tests
         run: |
-          if [[ "${{ matrix.target.os }}" == "windows" ]]; then
-            # https://github.com/status-im/nimbus-eth2/issues/3121
-            export NIMFLAGS="-d:nimRawSetjmp"
-          fi
           nim --version
           nimble --version
           nimble install -y --depsOnly

config.nims

@@ -2,6 +2,21 @@
 if dirExists("nimbledeps/pkgs"):
   switch("NimblePath", "nimbledeps/pkgs")
 
+switch("warning", "CaseTransition:off")
+switch("warning", "ObservableStores:off")
+switch("warning", "LockLevel:off")
+--define:chronosStrictException
+--styleCheck:usages
+if (NimMajor, NimMinor) < (1, 6):
+  --styleCheck:hint
+else:
+  --styleCheck:error
+
+# Avoid some rare stack corruption while using exceptions with a SEH-enabled
+# toolchain: https://github.com/status-im/nimbus-eth2/issues/3121
+if defined(windows) and not defined(vcc):
+  --define:nimRawSetjmp
+
 # begin Nimble config (version 1)
 when fileExists("nimble.paths"):
   include "nimble.paths"

libp2p.nimble

@@ -18,26 +18,13 @@ requires "nim >= 1.2.0",
          "stew#head",
          "websock"
 
-const styleCheckStyle =
-  if (NimMajor, NimMinor) < (1, 6):
-    "hint"
-  else:
-    "error"
-
-const nimflags =
-  "--verbosity:0 --hints:off " &
-  "--warning[CaseTransition]:off --warning[ObservableStores]:off " &
-  "--warning[LockLevel]:off " &
-  "-d:chronosStrictException " &
-  "--styleCheck:usages --styleCheck:" & styleCheckStyle & " "
-
 proc runTest(filename: string, verify: bool = true, sign: bool = true,
              moreoptions: string = "") =
-  var excstr = "nim c --opt:speed -d:debug -d:libp2p_agents_metrics -d:libp2p_protobuf_metrics -d:libp2p_network_protocols_metrics -d:libp2p_mplex_metrics "
+  var excstr = "nim c --skipParentCfg --opt:speed -d:debug -d:libp2p_agents_metrics -d:libp2p_protobuf_metrics -d:libp2p_network_protocols_metrics -d:libp2p_mplex_metrics "
   excstr.add(" -d:chronicles_sinks=textlines[stdout],json[dynamic] -d:chronicles_log_level=TRACE ")
   excstr.add(" -d:chronicles_runtime_filtering=TRUE ")
   excstr.add(" " & getEnv("NIMFLAGS") & " ")
-  excstr.add(" " & nimflags & " ")
+  excstr.add(" --verbosity:0 --hints:off ")
   excstr.add(" -d:libp2p_pubsub_sign=" & $sign)
   excstr.add(" -d:libp2p_pubsub_verify=" & $verify)
   excstr.add(" " & moreoptions & " ")
@@ -45,8 +32,7 @@ proc runTest(filename: string, verify: bool = true, sign: bool = true,
   rmFile "tests/" & filename.toExe
 
 proc buildSample(filename: string, run = false) =
-  var excstr = "nim c --opt:speed --threads:on -d:debug "
-  excstr.add(" " & nimflags & " ")
+  var excstr = "nim c --opt:speed --threads:on -d:debug --verbosity:0 --hints:off "
   excstr.add(" examples/" & filename)
   exec excstr
   if run:
@@ -55,7 +41,7 @@ proc buildSample(filename: string, run = false) =
 
 proc buildTutorial(filename: string) =
   discard gorge "cat " & filename & " | nim c -r --hints:off tools/markdown_runner.nim | " &
-    " nim " & nimflags & " c -"
+    " nim --verbosity:0 --hints:off c -"
 
 task testnative, "Runs libp2p native tests":
   runTest("testnative")

tests/config.nims

@@ -0,0 +1,3 @@
+import ../config.nims
+
+--threads:on

tests/nim.cfg

@@ -1 +0,0 @@
---threads:on