fix: unique version per custom build

Author: ldez

pkg/commands/internal/builder.go

@@ -2,6 +2,8 @@ package internal
 
 import (
 	"context"
+	"crypto/sha256"
+	"encoding/base64"
 	"fmt"
 	"io"
 	"os"
@@ -177,8 +179,8 @@ func (b Builder) goBuild(ctx context.Context, binaryName string) error {
 	cmd := exec.CommandContext(ctx, "go", "build",
 		"-ldflags",
 		fmt.Sprintf(
-			"-s -w -X 'main.version=%s-custom-gcl' -X 'main.date=%s'",
-			sanitizeVersion(b.cfg.Version), time.Now().UTC().String(),
+			"-s -w -X 'main.version=%s' -X 'main.date=%s'",
+			createVersion(b.cfg.Version), time.Now().UTC().String(),
 		),
 		"-o", binaryName,
 		"./cmd/golangci-lint",
@@ -241,6 +243,13 @@ func (b Builder) getBinaryName() string {
 	return name
 }
 
+func createVersion(orig string) string {
+	h := sha256.New()
+	h.Write([]byte(time.Now().UTC().String()))
+
+	return sanitizeVersion(orig) + "-custom-gcl-" + base64.RawURLEncoding.EncodeToString(h.Sum(nil))
+}
+
 func sanitizeVersion(v string) string {
 	fn := func(c rune) bool {
 		return !unicode.IsLetter(c) && !unicode.IsNumber(c) && c != '.' && c != '/'