Merge branch v2.11 into v3.4

internal/testsci/genmatrix.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/rs/zerolog/log"
+	"golang.org/x/tools/go/packages"
+)
+
+const groupCount = 12
+
+type group struct {
+	Group string `json:"group"`
+}
+
+func main() {
+	cfg := &packages.Config{
+		Mode: packages.NeedName,
+		Dir:  ".",
+	}
+
+	pkgs, err := packages.Load(cfg, "./cmd/...", "./pkg/...")
+	if err != nil {
+		log.Fatal().Err(err).Msg("Loading packages")
+	}
+
+	var packageNames []string
+	for _, pkg := range pkgs {
+		if pkg.PkgPath != "" {
+			packageNames = append(packageNames, pkg.PkgPath)
+		}
+	}
+
+	total := len(packageNames)
+	perGroup := (total + groupCount - 1) / groupCount
+
+	fmt.Fprintf(os.Stderr, "Total packages: %d\n", total)
+	fmt.Fprintf(os.Stderr, "Packages per group: %d\n", perGroup)
+
+	var matrix []group
+	for i := range groupCount {
+		start := i * perGroup
+		end := start + perGroup
+		if start >= total {
+			break
+		}
+		if end > total {
+			end = total
+		}
+		g := strings.Join(packageNames[start:end], " ")
+		matrix = append(matrix, group{Group: g})
+	}
+
+	jsonBytes, err := json.Marshal(matrix)
+	if err != nil {
+		log.Fatal().Err(err).Msg("Failed to marshal matrix")
+	}
+
+	// Output for GitHub Actions
+	fmt.Printf("matrix=%s\n", string(jsonBytes))
+}