From ff21c01ebd13acded85dced2e0b514af532ead89 Mon Sep 17 00:00:00 2001
From: Darshan K <35736874+darshankabariya@users.noreply.github.com>
Date: Wed, 23 Oct 2024 11:59:37 +0530
Subject: [PATCH] feat: windows support compress into one big commit (#3107)

---
 Makefile                 | 22 ++++++++++---
 README.md                | 13 +++++++-
 config.nims              | 10 ++++++
 scripts/build_rln.sh     | 11 ++++---
 scripts/windows_setup.sh | 68 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 114 insertions(+), 10 deletions(-)
 create mode 100644 scripts/windows_setup.sh

diff --git a/Makefile b/Makefile
index bf6f9b386..02de7fc09 100644
--- a/Makefile
+++ b/Makefile
@@ -29,10 +29,22 @@ GIT_SUBMODULE_UPDATE := git submodule update --init --recursive
 
 else # "variables.mk" was included. Business as usual until the end of this file.
 
-ifeq ($(OS),Windows_NT)     # is Windows_NT on XP, 2000, 7, Vista, 10...
- detected_OS := Windows
-else
- detected_OS := $(strip $(shell uname))
+# Determine the OS
+detected_OS := $(shell uname -s)
+ifneq (,$(findstring MINGW,$(detected_OS)))
+  detected_OS := Windows
+endif
+
+ifeq ($(detected_OS),Windows) 
+  # Define a new temporary directory for Windows
+  TMP_DIR := $(CURDIR)/tmp
+  $(shell mkdir -p $(TMP_DIR))
+  export TMP := $(TMP_DIR)
+  export TEMP := $(TMP_DIR)
+  
+  # Add the necessary libraries to the linker flags
+  LIBS = -static -lws2_32 -lbcrypt -luserenv -lntdll -lminiupnpc
+  NIM_PARAMS += $(foreach lib,$(LIBS),--passL:"$(lib)")
 endif
 
 ##########
@@ -146,7 +158,7 @@ clean: | clean-libbacktrace
 LIBRLN_BUILDDIR := $(CURDIR)/vendor/zerokit
 LIBRLN_VERSION := v0.5.1
 
-ifeq ($(OS),Windows_NT)
+ifeq ($(detected_OS),Windows)
 LIBRLN_FILE := rln.lib
 else
 LIBRLN_FILE := librln_$(LIBRLN_VERSION).a
diff --git a/README.md b/README.md
index 5fb8afc1e..94995d5dd 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ The nwaku repository implements Waku, and provides tools related to it.
 
 For more details see the [source code](waku/README.md)
 
-## How to Build & Run
+## How to Build & Run ( Linux, MacOS & WSL )
 
 These instructions are generic. For more detailed instructions, see the Waku source code above.
 
@@ -48,6 +48,17 @@ For more on how to run `wakunode2`, refer to:
 ##### WSL
 If you encounter difficulties building the project on WSL, consider placing the project within WSL's filesystem, avoiding the `/mnt/` directory.
 
+### How to Build & Run ( Windows )
+
+Note: This is a work in progress. The current setup procedure is as follows:
+Goal: Get rid of windows specific procedures and make the build process the same as linux/macos. 
+
+The current setup procedure is as follows:
+
+1. Clone the repository and checkout master branch
+2. Ensure prerequisites are installed (Make, GCC, MSYS2/MinGW)
+3. Run scripts/windows_setup.sh
+
 ### Developing
 
 #### Nim Runtime
diff --git a/config.nims b/config.nims
index 4c3d8dfac..25066dcb2 100644
--- a/config.nims
+++ b/config.nims
@@ -1,9 +1,19 @@
+import os
+
 if defined(release):
   switch("nimcache", "nimcache/release/$projectName")
 else:
   switch("nimcache", "nimcache/debug/$projectName")
 
 if defined(windows):
+  switch("passL", "rln.lib")
+
+  # Automatically add all vendor subdirectories
+  for dir in walkDir("./vendor"):
+    if dir.kind == pcDir:
+      switch("path", dir.path)
+      switch("path", dir.path / "src")
+
   # disable timestamps in Windows PE headers - https://wiki.debian.org/ReproducibleBuilds/TimestampsInPEBinaries
   switch("passL", "-Wl,--no-insert-timestamp")
   # increase stack size
diff --git a/scripts/build_rln.sh b/scripts/build_rln.sh
index d4843ca5e..992c1f434 100755
--- a/scripts/build_rln.sh
+++ b/scripts/build_rln.sh
@@ -42,10 +42,13 @@ else
     # Build rln instead
     # first, check if submodule version = version in Makefile
     cargo metadata --format-version=1 --no-deps --manifest-path "${build_dir}/rln/Cargo.toml"
-    submodule_version=$(
-      cargo metadata --format-version=1 --no-deps --manifest-path "${build_dir}/rln/Cargo.toml" \
-        | jq -r '.packages[] | select(.name == "rln") | .version'
-    )
+
+    if [[ "$OSTYPE" == "msys" || "$OSTYPE" == "win32" ]]; then
+        submodule_version=$(cargo metadata --format-version=1 --no-deps --manifest-path "${build_dir}/rln/Cargo.toml" | sed -n 's/.*"name":"rln","version":"\([^"]*\)".*/\1/p')
+    else
+        submodule_version=$(cargo metadata --format-version=1 --no-deps --manifest-path "${build_dir}/rln/Cargo.toml" | jq -r '.packages[] | select(.name == "rln") | .version')
+    fi
+    
     if [[ "v${submodule_version}" != "${rln_version}" ]]; then
         echo "Submodule version (v${submodule_version}) does not match version in Makefile (${rln_version})"
         echo "Please update the submodule to ${rln_version}"
diff --git a/scripts/windows_setup.sh b/scripts/windows_setup.sh
new file mode 100644
index 000000000..02b9bdc4c
--- /dev/null
+++ b/scripts/windows_setup.sh
@@ -0,0 +1,68 @@
+#!/bin/bash
+
+set -e  # Exit immediately if a command exits with a non-zero status
+
+echo "Windows Setup Script"
+echo "===================="
+
+# Function to execute a command and check its status
+execute_command() {
+    echo "Executing: $1"
+    if eval "$1"; then
+        echo "✓ Command succeeded"
+    else
+        echo "✗ Command failed"
+        exit 1
+    fi
+}
+
+# Function to change directory safely
+change_directory() {
+    echo "Changing to directory: $1"
+    if cd "$1"; then
+        echo "✓ Changed directory successfully"
+    else
+        echo "✗ Failed to change directory"
+        exit 1
+    fi
+}
+
+# Function to build a component
+build_component() {
+    local dir="$1"
+    local command="$2"
+    local name="$3"
+    
+    echo "Building $name"
+    if [ -d "$dir" ]; then
+        change_directory "$dir"
+        execute_command "$command"
+        change_directory - > /dev/null
+    else
+        echo "✗ $name directory not found: $dir"
+        exit 1
+    fi
+}
+
+echo "1. Updating submodules"
+execute_command "git submodule update --init --recursive"
+
+echo "2. Creating tmp directory"
+execute_command "mkdir -p tmp"
+
+echo "3. Building Nim"
+build_component "vendor/nimbus-build-system/vendor/Nim" "./build_all.bat" "Nim"
+
+echo "4. Building miniupnpc"
+build_component "vendor/nim-nat-traversal/vendor/miniupnp/miniupnpc" "./mingw32make.bat" "miniupnpc"
+
+echo "5. Building libnatpmp"
+build_component "vendor/nim-nat-traversal/vendor/libnatpmp-upstream" "./build.bat" "libnatpmp"
+
+echo "6. Building libunwind"
+build_component "vendor/nim-libbacktrace" "make install/usr/lib/libunwind.a" "libunwind"
+
+echo "7. Building wakunode2"
+execute_command "make wakunode2 V=1 NIMFLAGS="-d:disableMarchNative -d:postgres -d:chronicles_colors:none" "
+
+echo "Windows setup completed successfully!"