From 9db836a9e845a4965bf1bc48a265a84373a6e407 Mon Sep 17 00:00:00 2001
From: "Michael Bradley, Jr" <michaelsbradleyjr@gmail.com>
Date: Sat, 26 Feb 2022 14:48:08 -0600
Subject: [PATCH] [wip] first steps toward a Nim wrapper for
 github.com/catid/leopard

---
 .github/workflows/ci.yml     |  4 +--
 Makefile                     | 61 +++++++++++++++++++++++++++---------
 dagger/leopard.nim           |  5 +++
 tests/dagger/testleopard.nim |  5 +++
 tests/testAll.nim            |  2 ++
 5 files changed, 61 insertions(+), 16 deletions(-)
 create mode 100644 dagger/leopard.nim
 create mode 100644 tests/dagger/testleopard.nim

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 26dce3b3..eef45e3e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,6 @@ jobs:
       fail-fast: false
       max-parallel: 20
       matrix:
-        branch: [v1.4.6]
         target:
           # Unit tests
           - os: linux
@@ -35,7 +34,7 @@ jobs:
           - target:
               os: windows
             builder: windows-2019
-    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }} (${{ matrix.branch }})'
+    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }}'
     runs-on: ${{ matrix.builder }}
     steps:
       - name: Checkout nim-dagger
@@ -93,6 +92,7 @@ jobs:
           EOF
           chmod 755 external/bin/gcc external/bin/g++
           echo '${{ github.workspace }}/external/bin' >> $GITHUB_PATH
+          echo "LIBLEOPARD_CMAKE_FLAGS=-DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS=-m32 -DCMAKE_CXX_FLAGS=-m32" >> $GITHUB_ENV
 
       - name: Restore MinGW-W64 (Windows) from cache
         if: runner.os == 'Windows'
diff --git a/Makefile b/Makefile
index e00f84e9..f01b3afe 100644
--- a/Makefile
+++ b/Makefile
@@ -23,9 +23,12 @@ LINK_PCRE := 0
 	all \
 	deps \
 	update \
+	leopard \
+	testAll \
 	test \
-	clean \
-	libbacktrace
+	libbacktrace \
+	clean-leopard \
+	clean
 
 ifeq ($(NIM_PARAMS),)
 # "variables.mk" was not included, so we update the submodules.
@@ -48,6 +51,16 @@ all: | test
 # must be included after the default target
 -include $(BUILD_SYSTEM_DIR)/makefiles/targets.mk
 
+# detecting the os
+ifeq ($(OS),Windows_NT) # is Windows_NT on XP, 2000, 7, Vista, 10...
+detected_OS := Windows
+else ifeq ($(strip $(shell uname)),Darwin)
+detected_OS := macOS
+else
+ # e.g. Linux
+detected_OS := $(strip $(shell uname))
+endif
+
 # "-d:release" implies "--stacktrace:off" and it cannot be added to config.nims
 ifeq ($(USE_LIBBACKTRACE), 0)
 NIM_PARAMS := $(NIM_PARAMS) -d:debug -d:disable_libbacktrace
@@ -55,7 +68,7 @@ else
 NIM_PARAMS := $(NIM_PARAMS) -d:release
 endif
 
-deps: | deps-common nat-libs dagger.nims
+deps: | deps-common nat-libs dagger.nims leopard
 ifneq ($(USE_LIBBACKTRACE), 0)
 deps: | libbacktrace
 endif
@@ -67,20 +80,37 @@ update: | update-common
 
 # a phony target, because teaching `make` how to do conditional recompilation of Nim projects is too complicated
 
+LIBLEOPARD := $(shell pwd)/vendor/leopard/build/liblibleopard.a
+LIBLEOPARD_HEADER := $(shell pwd)/vendor/leopard/leopard.h
+
+ifeq ($(detected_OS),Windows)
+LIBLEOPARD_CMAKE_FLAGS ?= -G"MSYS Makefiles" -DCMAKE_BUILD_TYPE=Release
+else
+LIBLEOPARD_CMAKE_FLAGS ?= -DCMAKE_BUILD_TYPE=Release
+endif
+
+ifeq ($(detected_OS),Windows)
+NIM_PARAMS += --passC:"-I$(shell cygpath -m $(shell dirname $(LIBLEOPARD_HEADER)))" --passL:"$(shell cygpath -m $(LIBLEOPARD))"
+else
+NIM_PARAMS += --passC:"-I$(shell dirname $(LIBLEOPARD_HEADER))" --passL:"$(LIBLEOPARD)"
+endif
+
+ifneq ($(detected_OS),macOS)
+NIM_PARAMS += --passL:"-fopenmp"
+endif
+
+$(LIBLEOPARD):
+	cd vendor/leopard && \
+	mkdir -p build && cd build && \
+	cmake .. $(LIBLEOPARD_CMAKE_FLAGS) && \
+	$(MAKE)
+
+leopard: $(LIBLEOPARD)
+
 testAll: | build deps
 	echo -e $(BUILD_MSG) "build/$@" && \
 		$(ENV_SCRIPT) nim testAll $(NIM_PARAMS) dagger.nims
 
-# detecting the os
-ifeq ($(OS),Windows_NT) # is Windows_NT on XP, 2000, 7, Vista, 10...
- detected_OS := Windows
-else ifeq ($(strip $(shell uname)),Darwin)
- detected_OS := macOS
-else
- # e.g. Linux
- detected_OS := $(strip $(shell uname))
-endif
-
 # Builds and run the test suite (Waku v1 + v2)
 test: | testAll
 
@@ -92,8 +122,11 @@ dagger.nims:
 libbacktrace:
 	+ $(MAKE) -C vendor/nim-libbacktrace --no-print-directory BUILD_CXX_LIB=0
 
+clean-leopard:
+	rm -rf $(shell dirname $(LIBLEOPARD))
+
 # usual cleaning
-clean: | clean-common
+clean: | clean-common clean-leopard
 	rm -rf build
 ifneq ($(USE_LIBBACKTRACE), 0)
 	+ $(MAKE) -C vendor/nim-libbacktrace clean $(HANDLE_OUTPUT)
diff --git a/dagger/leopard.nim b/dagger/leopard.nim
new file mode 100644
index 00000000..66960c5f
--- /dev/null
+++ b/dagger/leopard.nim
@@ -0,0 +1,5 @@
+const header = "leopard.h"
+
+{.pragma: leo, cdecl, header: header, importCpp.}
+
+proc leo_init*(): cint {.leo.}
diff --git a/tests/dagger/testleopard.nim b/tests/dagger/testleopard.nim
new file mode 100644
index 00000000..d1fda3da
--- /dev/null
+++ b/tests/dagger/testleopard.nim
@@ -0,0 +1,5 @@
+import pkg/dagger/leopard
+
+let lin = leo_init()
+
+echo "leo_init() return code: " & $lin
diff --git a/tests/testAll.nim b/tests/testAll.nim
index f9e7167e..232b633b 100644
--- a/tests/testAll.nim
+++ b/tests/testAll.nim
@@ -4,5 +4,7 @@ import ./dagger/testasyncheapqueue
 import ./dagger/testchunking
 import ./dagger/testmanifest
 import ./dagger/testnode
+import ./dagger/testleopard
+
 
 {.warning[UnusedImport]: off.}