Add a lightweight MSI packages release workflow for winget (#15800)

.github/workflows/release-msi.nu

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+#!/usr/bin/env nu
+
+# Created: 2025/05/21 19:05:20
+# Description:
+#   A script to build Windows MSI packages for NuShell. Need wix 6.0 to be installed.
+#   The script will download the specified NuShell release, extract it, and create an MSI package.
+#   Can be run locally or in GitHub Actions.
+# To run this script locally:
+#   load-env { TARGET: 'x86_64-pc-windows-msvc' REF: '0.103.0' GITHUB_REPOSITORY: 'nushell/nushell' }
+#   nu .github/workflows/release-msi.nu
+
+def build-msi [] {
+    let target = $env.TARGET
+    let version = (open Cargo.toml | get package.version)
+    let arch = if $nu.os-info.arch =~ 'x86_64' { 'x64' } else { 'arm64' }
+
+    print $'Building msi package for (ansi g)($target)(ansi reset) with version (ansi g)($env.REF)(ansi reset)'
+    fetch-nu-pkg
+    # Create extra Windows msi release package if dotnet and wix are available
+    let installed = [dotnet wix] | all { (which $in | length) > 0 }
+    if $installed and (wix --version | split row . | first | into int) >= 6 {
+
+        print $'(char nl)Start creating Windows msi package with the following contents...'
+        cd wix; hr-line
+        cp nu/README.txt .
+        ls -f nu/* | print
+        ./nu/nu.exe -c $'NU_RELEASE_VERSION=($version) dotnet build -c Release -p:Platform=($arch)'
+        glob **/*.msi | print
+        # Workaround for https://github.com/softprops/action-gh-release/issues/280
+        let wixRelease = (glob **/*.msi | where $it =~ bin | get 0 | str replace --all '\' '/')
+        let msi = $'($wixRelease | path dirname)/nu-($version)-($target).msi'
+        mv $wixRelease $msi
+        print $'MSI archive: ---> ($msi)';
+        # Run only in GitHub Actions
+        if ($env.GITHUB_ACTIONS? | default false | into bool) {
+            echo $"msi=($msi)(char nl)" o>> $env.GITHUB_OUTPUT
+        }
+    }
+}
+
+def fetch-nu-pkg [] {
+    mkdir wix/nu
+    # See: https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/store-information-in-variables#default-environment-variables
+    gh release download $env.REF --repo $env.GITHUB_REPOSITORY --pattern $'*-($env.TARGET).zip' --dir wix/nu
+    cd wix/nu
+    let pkg = ls *.zip | get name.0
+    unzip $pkg
+    rm $pkg
+    ls | print
+}
+
+# Print a horizontal line marker
+def 'hr-line' [
+    --blank-line(-b)
+] {
+    print $'(ansi g)---------------------------------------------------------------------------->(ansi reset)'
+    if $blank_line { char nl }
+}
+
+alias main = build-msi

.github/workflows/release-msi.yml

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+#
+# REF:
+#   1. https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstrategymatrixinclude
+#
+name: Build Windows MSI
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        required: true
+        description: 'Tag to Rebuild MSI'
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  release:
+    name: Nu
+
+    strategy:
+      fail-fast: false
+      matrix:
+        target:
+        - x86_64-pc-windows-msvc
+        - aarch64-pc-windows-msvc
+        extra: ['bin']
+
+        include:
+        - target: x86_64-pc-windows-msvc
+          os: windows-latest
+        - target: aarch64-pc-windows-msvc
+          os: windows-11-arm
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install Wix Toolset 6 for Windows
+      shell: pwsh
+      if: ${{ startsWith(matrix.os, 'windows') }}
+      run: |
+        dotnet tool install --global wix --version 6.0.0
+        dotnet workload install wix
+        $wixPath = "$env:USERPROFILE\.dotnet\tools"
+        echo "$wixPath" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+        $env:PATH = "$wixPath;$env:PATH"
+        wix --version
+
+    - name: Setup Nushell
+      uses: hustcer/setup-nu@v3
+      with:
+        version: nightly
+
+    - name: Release MSI Packages
+      id: nu
+      run: nu .github/workflows/release-msi.nu
+      env:
+        OS: ${{ matrix.os }}
+        REF: ${{ inputs.tag }}
+        TARGET: ${{ matrix.target }}
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    # REF: https://github.com/marketplace/actions/gh-release
+    - name: Publish Archive
+      uses: softprops/action-gh-release@v2.0.5
+      with:
+        tag_name: ${{ inputs.tag }}
+        files: ${{ steps.nu.outputs.msi }}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  sha256sum:
+    needs: release
+    name: Create Sha256sum
+    runs-on: ubuntu-latest
+    steps:
+    - name: Download Release Archives
+      env:
+        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: >-
+        gh release download ${{ inputs.tag }}
+        --repo ${{ github.repository }}
+        --pattern '*'
+        --dir release
+    - name: Create Checksums
+      run: cd release && rm -f SHA256SUMS && shasum -a 256 * > ../SHA256SUMS
+    - name: Publish Checksums
+      uses: softprops/action-gh-release@v2.0.5
+      with:
+        files: SHA256SUMS
+        tag_name: ${{ inputs.tag }}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}