ci(windows): switch bridge codegen step to pwsh to dodge msys path conversion

.gitea/workflows/build-windows.yml

@@ -123,47 +123,46 @@ jobs:
           Add-Content -Path $env:GITHUB_PATH -Value "$tools\bin"
 
       - name: Generate Rust <-> Dart bridge
-        shell: bash
+        # Run in pwsh, NOT bash. Git-Bash-on-Windows mangles entries like
+        # `C:\Program Files\Git\cmd` during MSYS PATH conversion -- when bash
+        # spawns dart.exe, dart sees a malformed PATH and `pub` fails with
+        # "Unable to find git in your PATH" even though `which git` works in bash.
+        shell: pwsh
         env:
-          # ffigen searches a hardcoded list of locations for libclang.dll and does
-          # not honor LIBCLANG_PATH; the --llvm-path flag below is what matters.
-          # Setting LIBCLANG_PATH anyway because some other Rust crates (e.g. bindgen)
-          # do read it during the build that follows.
           LIBCLANG_PATH: '${{ env.LLVM_HOME }}\bin'
         run: |
-          set -e
+          $ErrorActionPreference = 'Stop'
 
-          # Belt-and-suspenders: explicitly prepend the dirs we need so we don't
-          # depend on whatever PATH act_runner hands the bash step. Forward-slash
-          # form is what MSYS bash expects.
-          export PATH="/c/cargo-tools/bin:/c/Program Files/Git/cmd:/c/Program Files/Git/bin:$PATH"
+          # Belt-and-suspenders for the cargo-installed tools.
+          $env:PATH = "C:\cargo-tools\bin;$env:PATH"
 
-          echo "== PATH visibility check =="
-          echo "PATH=$PATH"
-          echo
-          echo "which git           -> $(which git           2>&1 || echo MISSING)"
-          echo "which git.exe       -> $(which git.exe       2>&1 || echo MISSING)"
-          echo "which flutter       -> $(which flutter       2>&1 || echo MISSING)"
-          echo "which flutter_rust_bridge_codegen -> $(which flutter_rust_bridge_codegen 2>&1 || echo MISSING)"
-          echo "git --version       -> $(git --version       2>&1 || echo FAILED)"
-          echo
+          Write-Host "== PATH visibility check =="
+          foreach ($t in 'git','flutter','flutter_rust_bridge_codegen','dart') {
+            $cmd = Get-Command $t -ErrorAction SilentlyContinue
+            if ($cmd) { Write-Host ("{0,-30} {1}" -f $t, $cmd.Source) }
+            else      { Write-Host ("{0,-30} MISSING" -f $t) }
+          }
+          Write-Host ("git --version  -> " + ((git --version) 2>&1))
 
-          if [ ! -f "${LIBCLANG_PATH}/libclang.dll" ]; then
-            echo "libclang.dll not found at ${LIBCLANG_PATH}"
-            ls "${LIBCLANG_PATH}" || true
-            exit 1
-          fi
+          if (-not (Test-Path "$env:LIBCLANG_PATH\libclang.dll")) {
+            throw "libclang.dll not found at $env:LIBCLANG_PATH"
+          }
 
-          pushd flutter
+          Push-Location flutter
           flutter pub get
-          popd
+          if ($LASTEXITCODE -ne 0) { throw "flutter pub get failed ($LASTEXITCODE)" }
+          Pop-Location
 
-          flutter_rust_bridge_codegen \
-            --llvm-path "${LLVM_HOME}" \
-            --rust-input ./src/flutter_ffi.rs \
-            --dart-output ./flutter/lib/generated_bridge.dart \
+          flutter_rust_bridge_codegen `
+            --llvm-path "$env:LLVM_HOME" `
+            --rust-input ./src/flutter_ffi.rs `
+            --dart-output ./flutter/lib/generated_bridge.dart `
             --c-output ./flutter/macos/Runner/bridge_generated.h
-          cp ./flutter/macos/Runner/bridge_generated.h ./flutter/ios/Runner/bridge_generated.h
+          if ($LASTEXITCODE -ne 0) { throw "flutter_rust_bridge_codegen failed ($LASTEXITCODE)" }
+
+          Copy-Item -Force `
+            ./flutter/macos/Runner/bridge_generated.h `
+            ./flutter/ios/Runner/bridge_generated.h
 
       - name: Replace Flutter engine with rustdesk custom engine
         shell: pwsh