Vendor crc CopySparse

Added the module github.com/crc-org/crc/ as a dependency.

Updated `decompress.go` and `copy_test.go` in compression
so that `CopySparse` from crc-org/crc/v2/pkg/os is used instead
of the local version in `copy.go`.

Deleted `copy.go` that is not used anymore.

Signed-off-by: Mario Loriedo <mario.loriedo@gmail.com>

vendor/github.com/crc-org/crc/v2/LICENSE

@@ -0,0 +1,191 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+
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+
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
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+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+
+   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.

vendor/github.com/crc-org/crc/v2/pkg/crc/logging/inmemory.go

@@ -0,0 +1,44 @@
+package logging
+
+import (
+	"container/ring"
+	"sync"
+
+	"github.com/sirupsen/logrus"
+)
+
+// This hook keeps in memory n messages from error to info level
+type inMemoryHook struct {
+	messages *ring.Ring
+	lock     sync.RWMutex
+}
+
+func newInMemoryHook(size int) *inMemoryHook {
+	return &inMemoryHook{
+		messages: ring.New(size),
+	}
+}
+
+func (h *inMemoryHook) Levels() []logrus.Level {
+	return []logrus.Level{logrus.InfoLevel, logrus.WarnLevel, logrus.ErrorLevel}
+}
+
+func (h *inMemoryHook) Fire(entry *logrus.Entry) error {
+	h.lock.Lock()
+	defer h.lock.Unlock()
+	h.messages.Value = entry.Message
+	h.messages = h.messages.Next()
+	return nil
+}
+
+func (h *inMemoryHook) Messages() []string {
+	h.lock.RLock()
+	defer h.lock.RUnlock()
+	var ret []string
+	h.messages.Do(func(elem interface{}) {
+		if str, ok := elem.(string); ok {
+			ret = append(ret, str)
+		}
+	})
+	return ret
+}

vendor/github.com/crc-org/crc/v2/pkg/crc/logging/logging.go

@@ -0,0 +1,126 @@
+package logging
+
+import (
+	"os"
+
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/pflag"
+	terminal "golang.org/x/term"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+var (
+	lumberjackLogger *lumberjack.Logger
+	logLevel         = defaultLogLevel()
+	Memory           = newInMemoryHook(100)
+)
+
+func CloseLogging() {
+	if lumberjackLogger != nil {
+		_ = lumberjackLogger.Close()
+	}
+	logrus.StandardLogger().ReplaceHooks(make(logrus.LevelHooks))
+}
+
+func BackupLogFile() {
+	if lumberjackLogger == nil {
+		return
+	}
+	_ = lumberjackLogger.Rotate()
+}
+
+func InitLogrus(logFilePath string) {
+	if lumberjackLogger != nil {
+		return
+	}
+
+	lumberjackLogger = &lumberjack.Logger{
+		Filename:   logFilePath,
+		MaxSize:    5, // 5MB
+		MaxBackups: 2,
+	}
+	// send logs to file
+	logrus.SetOutput(lumberjackLogger)
+
+	logrus.SetLevel(logrus.TraceLevel)
+
+	level, err := logrus.ParseLevel(logLevel)
+	if err != nil {
+		level = logrus.InfoLevel
+	}
+
+	logrus.AddHook(Memory)
+
+	// Add hook to send error/fatal to stderr
+	logrus.AddHook(newstdErrHook(level, &logrus.TextFormatter{
+		ForceColors:            terminal.IsTerminal(int(os.Stderr.Fd())),
+		DisableTimestamp:       true,
+		DisableLevelTruncation: false,
+	}))
+}
+
+func DefaultLogLevel() logrus.Level {
+	level, err := logrus.ParseLevel(logLevel)
+	if err != nil {
+		level = logrus.InfoLevel
+	}
+	return level
+}
+
+func defaultLogLevel() string {
+	defaultLevel := "info"
+	envLogLevel := os.Getenv("CRC_LOG_LEVEL")
+	if envLogLevel != "" {
+		defaultLevel = envLogLevel
+	}
+
+	return defaultLevel
+}
+
+func AddLogLevelFlag(flagset *pflag.FlagSet) {
+	flagset.StringVar(&logLevel, "log-level", defaultLogLevel(), "log level (e.g. \"debug | info | warn | error\")")
+}
+
+func IsDebug() bool {
+	return logLevel == "debug"
+}
+
+func Info(args ...interface{}) {
+	logrus.Info(args...)
+}
+
+func Infof(s string, args ...interface{}) {
+	logrus.Infof(s, args...)
+}
+
+func Warn(args ...interface{}) {
+	logrus.Warn(args...)
+}
+
+func Warnf(s string, args ...interface{}) {
+	logrus.Warnf(s, args...)
+}
+
+func Fatal(args ...interface{}) {
+	logrus.Fatal(args...)
+}
+
+func Fatalf(s string, args ...interface{}) {
+	logrus.Fatalf(s, args...)
+}
+
+func Error(args ...interface{}) {
+	logrus.Error(args...)
+}
+
+func Errorf(s string, args ...interface{}) {
+	logrus.Errorf(s, args...)
+}
+
+func Debug(args ...interface{}) {
+	logrus.Debug(args...)
+}
+
+func Debugf(s string, args ...interface{}) {
+	logrus.Debugf(s, args...)
+}

vendor/github.com/crc-org/crc/v2/pkg/crc/logging/stderr_hook.go

@@ -0,0 +1,53 @@
+package logging
+
+import (
+	"io"
+	"os"
+	"runtime"
+
+	"github.com/mattn/go-colorable"
+	"github.com/sirupsen/logrus"
+)
+
+// This is stdErrHook to send error to the stdErr.
+type stdErrHook struct {
+	stderr    io.Writer
+	formatter logrus.Formatter
+	level     logrus.Level
+}
+
+func newstdErrHook(level logrus.Level, formatter logrus.Formatter) *stdErrHook {
+	// For windows to display colors we need to use the go-colorable writer
+	if runtime.GOOS == "windows" {
+		return &stdErrHook{
+			stderr:    colorable.NewColorableStderr(),
+			formatter: formatter,
+			level:     level,
+		}
+	}
+	return &stdErrHook{
+		stderr:    os.Stderr,
+		formatter: formatter,
+		level:     level,
+	}
+}
+
+func (h stdErrHook) Levels() []logrus.Level {
+	var levels []logrus.Level
+	for _, level := range logrus.AllLevels {
+		if level <= h.level {
+			levels = append(levels, level)
+		}
+	}
+	return levels
+}
+
+func (h *stdErrHook) Fire(entry *logrus.Entry) error {
+	line, err := h.formatter.Format(entry)
+	if err != nil {
+		return err
+	}
+
+	_, err = h.stderr.Write(line)
+	return err
+}

vendor/github.com/crc-org/crc/v2/pkg/os/copy.go

@@ -0,0 +1,111 @@
+package os
+
+import (
+	"bytes"
+	"io"
+	"os"
+)
+
+func copyFile(src, dst string, sparse bool) error {
+	in, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+
+	defer in.Close()
+
+	out, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+
+	defer out.Close()
+
+	if sparse {
+		if _, err = CopySparse(out, in); err != nil {
+			return err
+		}
+	} else {
+		if _, err = io.Copy(out, in); err != nil {
+			return err
+		}
+	}
+
+	fi, err := os.Stat(src)
+	if err != nil {
+		return err
+	}
+
+	if err = os.Chmod(dst, fi.Mode()); err != nil {
+		return err
+	}
+
+	return out.Close()
+}
+
+func CopyFile(src, dst string) error {
+	return copyFile(src, dst, false)
+}
+
+func CopyFileSparse(src, dst string) error {
+	return copyFile(src, dst, true)
+}
+
+func CopySparse(dst io.WriteSeeker, src io.Reader) (int64, error) {
+	copyBuf := make([]byte, copyChunkSize)
+	sparseWriter := newSparseWriter(dst)
+
+	bytesWritten, err := io.CopyBuffer(sparseWriter, src, copyBuf)
+	if err != nil {
+		return bytesWritten, err
+	}
+	err = sparseWriter.Close()
+	return bytesWritten, err
+}
+
+type sparseWriter struct {
+	writer          io.WriteSeeker
+	lastChunkSparse bool
+}
+
+func newSparseWriter(writer io.WriteSeeker) *sparseWriter {
+	return &sparseWriter{writer: writer}
+}
+
+const copyChunkSize = 4096
+
+var emptyChunk = make([]byte, copyChunkSize)
+
+func isEmptyChunk(p []byte) bool {
+	// HasPrefix instead of bytes.Equal in order to handle the last chunk
+	// of the file, which may be shorter than len(emptyChunk), and would
+	// fail bytes.Equal()
+	return bytes.HasPrefix(emptyChunk, p)
+}
+
+func (w *sparseWriter) Write(p []byte) (n int, err error) {
+	if isEmptyChunk(p) {
+		offset, err := w.writer.Seek(int64(len(p)), io.SeekCurrent)
+		if err != nil {
+			w.lastChunkSparse = false
+			return 0, err
+		}
+		_ = offset
+		w.lastChunkSparse = true
+		return len(p), nil
+	}
+	w.lastChunkSparse = false
+	return w.writer.Write(p)
+}
+
+func (w *sparseWriter) Close() error {
+	if w.lastChunkSparse {
+		if _, err := w.writer.Seek(-1, io.SeekCurrent); err != nil {
+			return err
+		}
+		if _, err := w.writer.Write([]byte{0}); err != nil {
+			return err
+		}
+	}
+	return nil
+}

vendor/github.com/crc-org/crc/v2/pkg/os/exec.go

@@ -0,0 +1,86 @@
+package os
+
+import (
+	"bytes"
+	"errors"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/crc-org/crc/v2/pkg/crc/logging"
+)
+
+func runCmd(command string, args []string, env map[string]string) (string, string, error) {
+	cmd := exec.Command(command, args...) // #nosec G204
+	if len(env) != 0 {
+		cmd.Env = os.Environ()
+		for key, value := range env {
+			cmd.Env = ReplaceOrAddEnv(cmd.Env, key, value)
+		}
+	}
+	stdOut := new(bytes.Buffer)
+	stdErr := new(bytes.Buffer)
+	cmd.Stdout = stdOut
+	cmd.Stderr = stdErr
+	err := cmd.Run()
+	if err != nil {
+		logging.Debugf("Command failed: %v", err)
+		logging.Debugf("stdout: %s", stdOut.String())
+		logging.Debugf("stderr: %s", stdErr.String())
+	}
+	return stdOut.String(), stdErr.String(), err
+}
+
+func run(command string, args []string, env map[string]string) (string, string, error) {
+	logging.Debugf("Running '%s %s'", command, strings.Join(args, " "))
+	return runCmd(command, args, env)
+}
+
+func runPrivate(command string, args []string, env map[string]string) (string, string, error) {
+	logging.Debugf("Running '%s <hidden arguments>'", command)
+	return runCmd(command, args, env)
+}
+
+// RunPrivileged executes a command using sudo
+// provide a reason why root is needed as the first argument
+func RunPrivileged(reason string, cmdAndArgs ...string) (string, string, error) {
+	sudo, err := exec.LookPath("sudo")
+	if err != nil {
+		return "", "", errors.New("sudo executable not found")
+	}
+	logging.Infof("Using root access: %s", reason)
+	return run(sudo, cmdAndArgs, map[string]string{})
+}
+
+var defaultLocaleEnv = map[string]string{"LC_ALL": "C", "LANG": "C"}
+
+func RunWithDefaultLocale(command string, args ...string) (string, string, error) {
+	return run(command, args, defaultLocaleEnv)
+}
+
+func RunWithDefaultLocalePrivate(command string, args ...string) (string, string, error) {
+	return runPrivate(command, args, defaultLocaleEnv)
+}
+
+type CommandRunner interface {
+	Run(command string, args ...string) (string, string, error)
+	RunPrivate(command string, args ...string) (string, string, error)
+	RunPrivileged(reason string, cmdAndArgs ...string) (string, string, error)
+}
+type localRunner struct{}
+
+func (r *localRunner) Run(command string, args ...string) (string, string, error) {
+	return RunWithDefaultLocale(command, args...)
+}
+
+func (r *localRunner) RunPrivate(command string, args ...string) (string, string, error) {
+	return RunWithDefaultLocalePrivate(command, args...)
+}
+
+func (r *localRunner) RunPrivileged(reason string, cmdAndArgs ...string) (string, string, error) {
+	return RunPrivileged(reason, cmdAndArgs...)
+}
+
+func NewLocalCommandRunner() CommandRunner {
+	return &localRunner{}
+}

vendor/github.com/crc-org/crc/v2/pkg/os/execerror.go

@@ -0,0 +1,57 @@
+/*
+Copyright 2014 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 os
+
+// ExitError is an interface that presents an API similar to os.ProcessState, which is
+// what ExitError from os/exec is.  This is designed to make testing a bit easier and
+// probably loses some of the cross-platform properties of the underlying library.
+type ExitError interface {
+	String() string
+	Error() string
+	Exited() bool
+	ExitStatus() int
+	Unwrap() error
+}
+
+// CodeExitError is an implementation of ExitError consisting of an error object
+// and an exit code (the upper bits of os.exec.ExitStatus).
+type CodeExitError struct {
+	Err  error
+	Code int
+}
+
+var _ ExitError = CodeExitError{}
+
+func (e CodeExitError) Error() string {
+	return e.Err.Error()
+}
+
+func (e CodeExitError) String() string {
+	return e.Err.Error()
+}
+
+func (e CodeExitError) Exited() bool {
+	return true
+}
+
+func (e CodeExitError) ExitStatus() int {
+	return e.Code
+}
+
+func (e CodeExitError) Unwrap() error {
+	return e.Err
+}

vendor/github.com/crc-org/crc/v2/pkg/os/util.go

@@ -0,0 +1,129 @@
+package os
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/crc-org/crc/v2/pkg/crc/logging"
+)
+
+// ReplaceOrAddEnv changes the value of an environment variable if it exists otherwise add the new variable
+// It drops the existing value and appends the new value in-place
+func ReplaceOrAddEnv(variables []string, varName string, value string) []string {
+	var result []string
+
+	found := false
+	for _, e := range variables {
+		pair := strings.Split(e, "=")
+		if pair[0] != varName {
+			result = append(result, e)
+		} else {
+			found = true
+			result = append(result, fmt.Sprintf("%s=%s", varName, value))
+		}
+	}
+
+	if !found {
+		result = append(result, fmt.Sprintf("%s=%s", varName, value))
+	}
+	return result
+}
+
+func CopyFileContents(src string, dst string, permission os.FileMode) error {
+	logging.Debugf("Copying '%s' to '%s'", src, dst)
+	srcFile, err := os.Open(filepath.Clean(src))
+	if err != nil {
+		return fmt.Errorf("[%v] Cannot open src file '%s'", err, src)
+	}
+	defer srcFile.Close()
+
+	destFile, err := os.OpenFile(dst, os.O_RDWR|os.O_CREATE, permission)
+	if err != nil {
+		return fmt.Errorf("[%v] Cannot create dst file '%s'", err, dst)
+	}
+	defer destFile.Close()
+
+	_, err = io.Copy(destFile, srcFile)
+	if err != nil {
+		return fmt.Errorf("[%v] Cannot copy '%s' to '%s'", err, src, dst)
+	}
+
+	err = destFile.Sync()
+	if err != nil {
+		return fmt.Errorf("[%v] Cannot sync '%s' to '%s'", err, src, dst)
+	}
+
+	return destFile.Close()
+}
+
+func FileContentMatches(path string, expectedContent []byte) error {
+	_, err := os.Stat(path)
+	if err != nil {
+		return fmt.Errorf("File not found: %s: %s", path, err.Error())
+	}
+	content, err := os.ReadFile(filepath.Clean(path))
+	if err != nil {
+		return fmt.Errorf("Error opening file: %s: %s", path, err.Error())
+	}
+	if !bytes.Equal(content, expectedContent) {
+		return fmt.Errorf("File has unexpected content: %s", path)
+
+	}
+	return nil
+}
+
+func WriteFileIfContentChanged(path string, newContent []byte, perm os.FileMode) (bool, error) {
+	err := FileContentMatches(path, newContent)
+	if err == nil {
+		return false, nil
+	}
+
+	/* Intentionally ignore errors, just try to write the file if we can't read it */
+	err = os.WriteFile(path, newContent, perm)
+
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}
+
+// FileExists returns true if the file at path exists.
+// It returns false if it does not exist, or if there was an error when checking for its existence.
+// This means there can be false negatives if Lstat fails because of permission issues (file exists,
+// but is not reachable by the current user)
+func FileExists(path string) bool {
+	info, err := os.Lstat(path)
+	if err != nil {
+		return false
+	}
+	return !info.IsDir()
+}
+
+func RemoveFileIfExists(path string) error {
+	if FileExists(path) {
+		return os.Remove(path)
+	}
+	return nil
+}
+
+func RunningUsingSSH() bool {
+	return os.Getenv("SSH_TTY") != ""
+}
+
+// RemoveFileGlob takes a glob pattern as string to remove the files and directories that matches
+func RemoveFileGlob(glob string) error {
+	matchedFiles, err := filepath.Glob(glob)
+	if err != nil {
+		return fmt.Errorf("Unable to find matches: %w", err)
+	}
+	for _, file := range matchedFiles {
+		if err = os.RemoveAll(file); err != nil {
+			return fmt.Errorf("Failed to delete file: %w", err)
+		}
+	}
+	return nil
+}

vendor/github.com/crc-org/crc/v2/pkg/os/util_unix.go

@@ -0,0 +1,48 @@
+//go:build !windows
+// +build !windows
+
+package os
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"os/exec"
+	"os/user"
+	"strconv"
+	"strings"
+
+	"github.com/crc-org/crc/v2/pkg/crc/logging"
+)
+
+func WriteToFileAsRoot(reason, content, filepath string, mode os.FileMode) error {
+	logging.Infof("Using root access: %s", reason)
+	cmd := exec.Command("sudo", "tee", filepath) // #nosec G204
+	cmd.Stdin = strings.NewReader(content)
+	buf := new(bytes.Buffer)
+	cmd.Stderr = buf
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("Failed writing to file as root: %s: %s: %v", filepath, buf.String(), err)
+	}
+	if _, _, err := RunPrivileged(fmt.Sprintf("Changing permissions for %s to %o ", filepath, mode),
+		"chmod", strconv.FormatUint(uint64(mode), 8), filepath); err != nil {
+		return err
+	}
+	return nil
+}
+
+func RemoveFileAsRoot(reason, filepath string) error {
+	if !FileExists(filepath) {
+		return nil
+	}
+	_, _, err := RunPrivileged(reason, "rm", "-fr", filepath)
+	return err
+}
+
+func GetCurrentUsername() (string, error) {
+	u, err := user.Current()
+	if err != nil {
+		return "", err
+	}
+	return u.Username, nil
+}

vendor/github.com/crc-org/crc/v2/pkg/os/util_windows.go

@@ -0,0 +1,46 @@
+package os
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"os"
+	"os/user"
+	"strings"
+
+	"golang.org/x/text/encoding/unicode"
+	"golang.org/x/text/transform"
+)
+
+// ReadFileUTF16LE reads a UTF-16LE file and returns in a []byte
+// ini/inf files in windows are of this format, reading a UTF-16
+// file directly without this would result in malformed texts
+func ReadFileUTF16LE(filename string) ([]byte, error) {
+	// Read the file into a []byte
+	raw, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	// Make an tranformer that converts MS-Win default to UTF8
+	win16le := unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM)
+	// Make a transformer that is like win16le, but abides by BOM
+	utf16bom := unicode.BOMOverride(win16le.NewDecoder())
+
+	// Make a Reader that uses utf16bom
+	unicodeReader := transform.NewReader(bytes.NewReader(raw), utf16bom)
+	decoded, err := io.ReadAll(unicodeReader)
+	return decoded, err
+}
+
+func GetCurrentUsername() (string, error) {
+	u, err := user.Current()
+	if err != nil {
+		return "", err
+	}
+	userAndDomain := strings.Split(u.Username, "\\")
+	if len(userAndDomain) > 1 {
+		return userAndDomain[1], nil
+	}
+	return "", errors.New("unable to find the username of current user")
+}