Add osc API for Version and WaitResults

Signed-off-by: Sascha Grunert <[email protected]>

osc/osc.go

@@ -19,6 +19,8 @@ package osc
 import (
 	"fmt"
 
+	"github.com/blang/semver/v4"
+
 	"sigs.k8s.io/release-utils/command"
 )
 
@@ -61,3 +63,41 @@ func Output(workDir string, args ...string) (string, error) {
 func Status(workDir string, args ...string) (*command.Status, error) {
 	return command.NewWithWorkDir(workDir, OSCExecutable, args...).Run()
 }
+
+// WaitResults waits for the build results. If can fail on error if an osc
+// version >= 1.8.0 is being used.
+func WaitResults(project, packageName string) error {
+	ver, err := Version()
+	if err != nil {
+		return fmt.Errorf("retrieve version: %w", err)
+	}
+
+	args := []string{
+		"results",
+		"-w",
+		fmt.Sprintf("%s/%s", project, packageName),
+	}
+
+	// Version 1.8.0 contains the feature to fail on wait error
+	// ref: https://github.com/openSUSE/osc/pull/1573
+	if ver.GE(semver.Version{Major: 1, Minor: 8}) {
+		args = append(args, "-F")
+	}
+
+	return command.New(OSCExecutable, args...).RunSuccess()
+}
+
+// Version returns the semver version of the osc executable.
+func Version() (*semver.Version, error) {
+	out, err := command.New(OSCExecutable, "version").RunSilentSuccessOutput()
+	if err != nil {
+		return nil, fmt.Errorf("run version command: %w", err)
+	}
+
+	ver, err := semver.Parse(out.OutputTrimNL())
+	if err != nil {
+		return nil, fmt.Errorf("parse semver version: %w", err)
+	}
+
+	return &ver, nil
+}

osc/osc_test.go

@@ -0,0 +1,76 @@
+/*
+Copyright 2024 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package osc_test
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/blang/semver/v4"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"sigs.k8s.io/release-sdk/osc"
+)
+
+const (
+	pathKey     = "PATH"
+	testProject = "project"
+	testPackage = "package"
+)
+
+func TestWaitResults(t *testing.T) {
+	for _, version := range []string{"1.6.2", "1.8.0"} {
+		// Setup a custom OSC executable
+		tempDir, err := os.MkdirTemp("", "osc-version-test-")
+		require.NoError(t, err)
+		require.NoError(t, os.WriteFile(
+			filepath.Join(tempDir, osc.OSCExecutable),
+			[]byte(`#!/usr/bin/env sh
+
+if [ "$1" = version ]; then
+    echo -n `+version+`
+else
+    echo -n "$@" > $(dirname "$(realpath $0)")/res
+fi
+	`),
+			0o755))
+
+		// Change $PATH
+		pathEnv := os.Getenv(pathKey)
+		t.Setenv(pathKey, tempDir+":"+pathEnv)
+
+		// Run the version test
+		ver, err := osc.Version()
+		assert.NoError(t, err)
+		assert.True(t, ver.EQ(semver.MustParse(version)))
+
+		// Run the wait results test
+		err = osc.WaitResults(testProject, testPackage)
+		assert.NoError(t, err)
+		res, err := os.ReadFile(filepath.Join(tempDir, "res"))
+		assert.NoError(t, err)
+		testString := "results -w project/package"
+		if version == "1.8.0" {
+			testString += " -F"
+		}
+		assert.Equal(t, testString, string(res))
+
+		// Cleanup
+		require.Nil(t, os.RemoveAll(tempDir))
+	}
+}