gen-manifests: create predictable version/release numbers in mockDeps…

…olve

The current code will only generate "0" version numbers for packages
and releases. This limits the usefulness of this mock in the tests
for otk. Instead generate predictable but (mostly) non-zero numbers
based on the modulo of the first and second char of the pkgname.

cmd/gen-manifests/main.go

@@ -13,6 +13,7 @@ import (
 	"io"
 	"os"
 	"path/filepath"
+	"strconv"
 	"strings"
 
 	"github.com/gobwas/glob"
@@ -375,11 +376,15 @@ func mockDepsolve(packageSets map[string][]rpmmd.PackageSet, repos []rpmmd.RepoC
 		for _, pkgSet := range pkgSetChain {
 			for _, pkgName := range pkgSet.Include {
 				checksum := fmt.Sprintf("%x", sha256.Sum256([]byte(pkgName)))
+				// generate predictable but non-empty
+				// release/version numbers
+				ver := strconv.Itoa(int(pkgName[0]) % 9)
+				rel := strconv.Itoa(int(pkgName[1]) % 9)
 				spec := rpmmd.PackageSpec{
 					Name:           pkgName,
 					Epoch:          0,
-					Version:        "0",
-					Release:        "0",
+					Version:        ver,
+					Release:        "r" + rel,
 					Arch:           "noarch",
 					RemoteLocation: fmt.Sprintf("https://example.com/repo/packages/%s", pkgName),
 					Checksum:       "sha256:" + checksum,