Support releasing for Windows (#6)

Task/Issue URL:
https://app.asana.com/1/137249556945/project/72649045549333/task/1211671201492810?focus=true

### Description
* Remove `scripts/build_windows_gitbash.sh`.
* Modify `scripts/build_windows.ps1` to build x64, x86 (32 bit) and
arm64 versions of the library.
* Add `.github/workflows/release_windows.yml` that builds the library
and publishes it as a NuGet package.

### Steps to test this PR
Check
[this](https://github.com/duckduckgo/url_predictor/actions/runs/19570306840)
workflow run that was successful.

Author: seldoff

.github/workflows/release.yml

@@ -16,17 +16,17 @@ jobs:
       tag: ${{ github.ref_name }}
 
   # Add other platform-specific release jobs here as they are added.
-  # release_windows:
-  #   uses: ./.github/workflows/release_windows.yml
-  #   with:
-  #     tag: ${{ github.ref_name }}
+  release_windows:
+    uses: ./.github/workflows/release_windows.yml
+    with:
+      tag: ${{ github.ref_name }}
 
   release:
 
     runs-on: ubuntu-latest
-    # Wait for the Apple release workflow to complete
+    # Wait for the Apple and Windows release workflows to complete
     # Add more platform-specific jobs here as they are added.
-    needs: release_apple
+    needs: [release_apple, release_windows]
 
     steps:
 

.github/workflows/release_windows.yml

@@ -25,4 +25,36 @@ jobs:
     timeout-minutes: 20
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+            dotnet-version: '6.0.x'
+            source-url: 'https://pkgs.dev.azure.com/ddgwindows/windows-nuget/_packaging/windows-nuget-feed/nuget/v3/index.json'
+        env:
+            NUGET_AUTH_TOKEN: ${{ secrets.AZURE_DEVOPS_TOKEN }}
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Run unit tests
+        env:
+          CARGO_TERM_COLOR: always
+        run: cargo test
+
+      - name: Run unit tests (with PSL)
+        env:
+          CARGO_TERM_COLOR: always
+        run: cargo test --features real-psl
+
+      - name: Build Windows artifacts
+        run: |
+          .\scripts\build_windows.ps1
+
+      - name: Create and publish NuGet package
+        run: |
+          $version = "${{ inputs.tag }}" -replace '^v', ''
+          nuget pack windows\windows.nuspec -Version $version -OutputDirectory dist\windows\nuget
+          dotnet nuget push --skip-duplicate --api-key AzureArtifacts dist\windows\nuget\*.nupkg
+

scripts/build_windows.ps1

@@ -4,29 +4,52 @@ $crate = "url_predictor"
 $features = ${env:FEATURES}
 if (-not $features) { $features = "real-psl" }
 
-# Ensure target
-rustup target add x86_64-pc-windows-msvc
+# Define targets
+$targets = @(
+    @{ name = "i686-pc-windows-msvc"; arch = "x86" },
+    @{ name = "x86_64-pc-windows-msvc"; arch = "x64" },
+    @{ name = "aarch64-pc-windows-msvc"; arch = "arm64" }
+)
+
+# Ensure targets
+Write-Host "Installing targets..."
+foreach ($target in $targets) {
+    rustup target add $target.name
+}
 
-# Build
-cargo build --release --features $features --target x86_64-pc-windows-msvc
+# Build all targets
+Write-Host "Building all architectures..."
+foreach ($target in $targets) {
+    Write-Host "Building $($target.arch) version..."
+    cargo build --release --features $features --target $target.name
+}
 
-# Layout
+# Layout - Clean and create directories
 Remove-Item -Recurse -Force dist\windows -ErrorAction SilentlyContinue
 New-Item -ItemType Directory -Force dist\windows\bin | Out-Null
 New-Item -ItemType Directory -Force dist\windows\lib | Out-Null
 New-Item -ItemType Directory -Force dist\include | Out-Null
 
-Copy-Item target\x86_64-pc-windows-msvc\release\$crate.dll dist\windows\bin\
-Copy-Item target\x86_64-pc-windows-msvc\release\$crate.lib dist\windows\lib\
-if (Test-Path target\x86_64-pc-windows-msvc\release\$crate.pdb) {
-  Copy-Item target\x86_64-pc-windows-msvc\release\$crate.pdb dist\windows\bin\
+# Copy artifacts for each architecture with arch suffix
+foreach ($target in $targets) {
+    $targetPath = "target\$($target.name)\release"
+    $arch = $target.arch
+
+    Write-Host "Copying $arch artifacts..."
+    Copy-Item $targetPath\$crate.dll dist\windows\bin\$crate-$arch.dll
+    Copy-Item $targetPath\$crate.lib dist\windows\lib\$crate-$arch.lib
+    if (Test-Path $targetPath\$crate.pdb) {
+        Copy-Item $targetPath\$crate.pdb dist\windows\bin\$crate-$arch.pdb
+    }
 }
 
-# Header
+# Header (architecture-independent)
 if (-not (Get-Command cbindgen -ErrorAction SilentlyContinue)) {
-  cargo install cbindgen
+    cargo install cbindgen
 }
 cbindgen --config cbindgen.toml --crate $crate --output dist\include\ddg_url_predictor.h
 
-Write-Host "✅ Windows artifacts at dist\windows\ (dll/lib/pdb) and header in dist\include"
-
+Write-Host "✅ Windows artifacts built for all architectures:"
+Write-Host "   - DLLs: dist\windows\bin\ ($crate-x86.dll, $crate-x64.dll, $crate-arm64.dll)"
+Write-Host "   - LIBs: dist\windows\lib\ ($crate-x86.lib, $crate-x64.lib, $crate-arm64.lib)"
+Write-Host "   - Header: dist\include\ddg_url_predictor.h"

scripts/build_windows_gitbash.sh

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
+  <metadata>
+    <id>DdgUrlPredictor</id>
+    <version>0.0.0-dev</version>
+    <title>DdgUrlPredictor</title>
+    <authors>DuckDuckGo</authors>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>Distributable files of DDG's url predictor</description>
+    <dependencies />
+  </metadata>
+  <files>
+    <file src="..\dist\windows\bin\url_predictor-x64.dll" target="runtimes\win-x64\native\url_predictor.dll" />
+    <file src="..\dist\windows\bin\url_predictor-x86.dll" target="runtimes\win-x86\native\url_predictor.dll" />
+    <file src="..\dist\windows\bin\url_predictor-arm64.dll" target="runtimes\win-arm64\native\url_predictor.dll" />
+  </files>
+</package>