ci: copy-paste updates from other projects

.github/workflows/ci.yml

@@ -1,5 +1,14 @@
 name: CI
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  workflow_dispatch:
+
+concurrency: # Cancel stale PR builds (but not push builds)
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
 
 jobs:
   build:
@@ -7,7 +16,6 @@ jobs:
       fail-fast: false
       max-parallel: 20
       matrix:
-        test_lang: [c]
         target:
           - os: linux
             cpu: amd64
@@ -19,6 +27,7 @@ jobs:
             cpu: amd64
           - os: windows
             cpu: i386
+        branch: [version-1-6, version-2-0, version-2-2, devel]
         include:
           - target:
               os: linux
@@ -30,14 +39,13 @@ jobs:
               os: windows
             builder: windows-latest
 
-    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }}-${{ matrix.test_lang }}'
+    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }} (Nim ${{ matrix.branch }})'
     runs-on: ${{ matrix.builder }}
     steps:
-      - name: Checkout nim-bncurve
+      - name: Checkout
         uses: actions/checkout@v4
         with:
-          path: nim-bncurve
-          submodules: false
+          submodules: true
 
       - name: Install build dependencies (Linux i386)
         if: runner.os == 'Linux' && matrix.target.cpu == 'i386'
@@ -146,9 +154,12 @@ jobs:
           env MAKE="$MAKE_CMD -j2" ARCH_OVERRIDE=$PLATFORM CC=gcc bash build_nim.sh nim csources dist/nimble NimBinaries
           echo '${{ github.workspace }}/nim/bin' >> $GITHUB_PATH
 
-      - name: Run nim-bncurve tests
+      - name: Run tests
         shell: bash
         working-directory: nim-bncurve
         run: |
+          nim --version
+          nimble --version
+          gcc --version
           nimble install -y --depsOnly
-          env TEST_LANG="${{ matrix.test_lang }}" nimble test
+          nimble test

.gitignore

@@ -1 +1,2 @@
 /tests
+build/

bncurve.nimble

@@ -11,6 +11,24 @@ requires "nim >= 1.6.0",
          "nimcrypto",
          "stint"
 
+let nimc = getEnv("NIMC", "nim") # Which nim compiler to use
+let lang = getEnv("NIMLANG", "c") # Which backend (c/cpp/js)
+let flags = getEnv("NIMFLAGS", "") # Extra flags for the compiler
+let verbose = getEnv("V", "") notin ["", "0"]
+
+let cfg =
+  " --styleCheck:usages --styleCheck:error" &
+  (if verbose: "" else: " --verbosity:0 --hints:off") &
+  " --skipParentCfg --skipUserCfg --outdir:build --nimcache:build/nimcache -f"
+
+proc build(args, path: string) =
+  exec nimc & " " & lang & " " & cfg & " " & flags & " " & args & " " & path
+
+proc run(args, path: string) =
+  build args & " --mm:refc -r", path
+  if (NimMajor, NimMinor) > (1, 6):
+    build args & " --mm:orc -r", path
+
 task test, "Run all tests":
   for tprog in @[
       "tests/tarith",
@@ -20,4 +38,4 @@ task test, "Run all tests":
       "tests/tether",
       "tests/tvectors",
     ]:
-    exec "nim c -f -r -d:release --styleCheck:error --styleCheck:usages --threads:on " & tprog
+    run "--threads:on", tprog