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package compress
import (
"fmt"
"os"
"path/filepath"
"runtime"
"testing"
"github.com/crc-org/crc/v2/pkg/crc/logging"
"github.com/crc-org/crc/v2/pkg/extract"
"github.com/stretchr/testify/require"
)
const testArchiveName = "testdata.tar.zst"
var (
files fileMap = map[string]string{
"a": "a",
"c": "c",
filepath.Join("b", "d"): "d",
}
)
func testCompress(t *testing.T, baseDir string) {
// This is useful to check that the top-level directory of the archive
// was created with the correct permissions, and was not created by the
// `os.MkdirAll(0750)` call at the beginning of `untarFile`
require.NoError(t, os.Chmod(baseDir, 0755))
require.NoError(t, Compress(baseDir, testArchiveName))
defer os.Remove(testArchiveName)
destDir := t.TempDir()
fileList, err := extract.Uncompress(testArchiveName, destDir)
require.NoError(t, err)
_, d := filepath.Split(baseDir)
fi, err := os.Stat(filepath.Join(destDir, d))
require.NoError(t, err)
fMode := os.FileMode(0755)
if runtime.GOOS == "windows" {
// https://golang.org/pkg/os/#Chmod
fMode = os.FileMode(0777)
}
require.Equal(t, fi.Mode().Perm(), fMode)
require.NoError(t, checkFileList(filepath.Join(destDir, d), fileList, files))
require.NoError(t, checkFiles(filepath.Join(destDir, d), files))
}
func TestCompressRelative(t *testing.T) {
// Test with relative path
testCompress(t, "testdata")
// Test with absolute path
currentDir, err := os.Getwd()
require.NoError(t, err)
testCompress(t, filepath.Join(currentDir, "testdata"))
}
/* The code below is duplicated from pkg/extract/extract_test.go */
type fileMap map[string]string
func copyFileMap(orig fileMap) fileMap {
copiedMap := fileMap{}
for key, value := range orig {
copiedMap[key] = value
}
return copiedMap
}
// This checks that the list of files returned by Uncompress matches what we expect
func checkFileList(destDir string, extractedFiles []string, expectedFiles fileMap) error {
// We are going to remove elements from the map, but we don't want to modify the map used by the caller
expectedFiles = copyFileMap(expectedFiles)
for _, file := range extractedFiles {
rel, err := filepath.Rel(destDir, file)
if err != nil {
return err
}
_, found := expectedFiles[rel]
if !found {
return fmt.Errorf("Unexpected file '%s' in file list %v", rel, expectedFiles)
}
delete(expectedFiles, rel)
}
if len(expectedFiles) != 0 {
return fmt.Errorf("Some expected files were not in file list: %v", expectedFiles)
}
return nil
}
// This checks that the files in the destination directory matches what we expect
func checkFiles(destDir string, files fileMap) error {
// We are going to remove elements from the map, but we don't want to modify the map used by the caller
files = copyFileMap(files)
err := filepath.Walk(destDir, func(path string, info os.FileInfo, err error) error {
logging.Debugf("Walking %s", path)
if err != nil {
return err
}
if info.IsDir() {
logging.Debugf("Skipping directory %s", path)
return nil
}
logging.Debugf("Checking file %s", path)
archivePath, err := filepath.Rel(destDir, path)
if err != nil {
return err
}
expectedContent, found := files[archivePath]
if !found {
return fmt.Errorf("Unexpected extracted file '%s'", path)
}
delete(files, archivePath)
data, err := os.ReadFile(path) // #nosec G304
if err != nil {
return err
}
if string(data) != expectedContent {
return fmt.Errorf("Unexpected content for '%s': expected [%s], got [%s]", path, expectedContent, string(data))
}
logging.Debugf("'%s' successfully checked", path)
return nil
})
if err != nil {
return err
}
if len(files) != 0 {
return fmt.Errorf("Some expected files were not extracted: %v", files)
}
return nil
}
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