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Rework archiving logic to be more consistent and less impactful on disk IO (#79)

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Co-authored-by: Dane Everitt <dane@daneeveritt.com>
This commit is contained in:
Matthew Penner 2020-12-25 12:52:57 -07:00 committed by GitHub
parent c0523df696
commit 901ab1157d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 262 additions and 350 deletions
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2
go.mod
View File

@ -62,7 +62,7 @@ require (
github.com/pkg/sftp v1.11.0
github.com/prometheus/common v0.11.1 // indirect
github.com/remeh/sizedwaitgroup v1.0.0
github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94
github.com/sabhiram/go-gitignore v0.0.0-20201211210132-54b8a0bf510f
github.com/spf13/cobra v1.0.0
github.com/spf13/pflag v1.0.5 // indirect
github.com/ulikunitz/xz v0.5.7 // indirect

2
go.sum
View File

@ -482,6 +482,8 @@ github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQD
github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94 h1:G04eS0JkAIVZfaJLjla9dNxkJCPiKIGZlw9AfOhzOD0=
github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94/go.mod h1:b18R55ulyQ/h3RaWyloPyER7fWQVZvimKKhnI5OfrJQ=
github.com/sabhiram/go-gitignore v0.0.0-20201211210132-54b8a0bf510f h1:8P2MkG70G76gnZBOPGwmMIgwBb/rESQuwsJ7K8ds4NE=
github.com/sabhiram/go-gitignore v0.0.0-20201211210132-54b8a0bf510f/go.mod h1:+ePHsJ1keEjQtpvf9HHw0f4ZeJ0TLRsxhunSI2hYJSs=
github.com/samuel/go-zookeeper v0.0.0-20190923202752-2cc03de413da/go.mod h1:gi+0XIa01GRL2eRQVjQkKGqKF3SF9vZR/HnPullcV2E=
github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=

57
server/backup.go
View File

@ -1,11 +1,11 @@
package server
import (
"bufio"
"emperror.dev/errors"
"github.com/apex/log"
"github.com/pterodactyl/wings/api"
"github.com/pterodactyl/wings/server/backup"
"io/ioutil"
"os"
"path"
)
@ -30,58 +30,38 @@ func (s *Server) notifyPanelOfBackup(uuid string, ad *backup.ArchiveDetails, suc
}
// Get all of the ignored files for a server based on its .pteroignore file in the root.
func (s *Server) getServerwideIgnoredFiles() ([]string, error) {
var ignored []string
func (s *Server) getServerwideIgnoredFiles() (string, error) {
f, err := os.Open(path.Join(s.Filesystem().Path(), ".pteroignore"))
if err != nil {
if !os.IsNotExist(err) {
return nil, err
}
} else {
scanner := bufio.NewScanner(f)
for scanner.Scan() {
// Only include non-empty lines, for the sake of clarity...
if t := scanner.Text(); t != "" {
ignored = append(ignored, t)
}
return "", err
}
if err := scanner.Err(); err != nil {
return nil, err
}
return "", nil
}
return ignored, nil
b, err := ioutil.ReadAll(f)
if err != nil {
return "", err
}
// Get the backup files to include when generating it.
func (s *Server) GetIncludedBackupFiles(ignored []string) (*backup.IncludedFiles, error) {
// If no ignored files are present in the request, check for a .pteroignore file in the root
// of the server files directory, and use that to generate the backup.
if len(ignored) == 0 {
if i, err := s.getServerwideIgnoredFiles(); err != nil {
s.Log().WithField("error", err).Warn("failed to retrieve ignored files listing for server")
} else {
ignored = i
}
}
// Get the included files based on the root path and the ignored files provided.
return s.Filesystem().GetIncludedFiles(s.Filesystem().Path(), ignored)
return string(b), nil
}
// Performs a server backup and then emits the event over the server websocket. We
// let the actual backup system handle notifying the panel of the status, but that
// won't emit a websocket event.
func (s *Server) Backup(b backup.BackupInterface) error {
// Get the included files based on the root path and the ignored files provided.
inc, err := s.GetIncludedBackupFiles(b.Ignored())
if err != nil {
return err
ignored := b.Ignored()
if b.Ignored() == "" {
if i, err := s.getServerwideIgnoredFiles(); err != nil {
log.WithField("server", s.Id()).WithField("error", err).Warn("failed to get server-wide ignored files")
} else {
ignored = i
}
}
ad, err := b.Generate(inc, s.Filesystem().Path())
ad, err := b.Generate(s.Filesystem().Path(), ignored)
if err != nil {
if notifyError := s.notifyPanelOfBackup(b.Identifier(), &backup.ArchiveDetails{}, false); notifyError != nil {
s.Log().WithFields(log.Fields{
@ -109,7 +89,8 @@ func (s *Server) Backup(b backup.BackupInterface) error {
// Try to notify the panel about the status of this backup. If for some reason this request
// fails, delete the archive from the daemon and return that error up the chain to the caller.
if notifyError := s.notifyPanelOfBackup(b.Identifier(), ad, true); notifyError != nil {
b.Remove()
_ = b.Remove()
s.Log().WithField("error", notifyError).Info("failed to notify panel of successful backup state")
return err
} else {
@ -118,7 +99,7 @@ func (s *Server) Backup(b backup.BackupInterface) error {
// Emit an event over the socket so we can update the backup in realtime on
// the frontend for the server.
s.Events().PublishJson(BackupCompletedEvent+":"+b.Identifier(), map[string]interface{}{
_ = s.Events().PublishJson(BackupCompletedEvent+":"+b.Identifier(), map[string]interface{}{
"uuid": b.Identifier(),
"is_successful": true,
"checksum": ad.Checksum,

150
server/backup/archiver.go
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@ -1,150 +0,0 @@
package backup
import (
"archive/tar"
"context"
"emperror.dev/errors"
"github.com/apex/log"
"github.com/juju/ratelimit"
gzip "github.com/klauspost/pgzip"
"github.com/pterodactyl/wings/config"
"github.com/remeh/sizedwaitgroup"
"golang.org/x/sync/errgroup"
"io"
"os"
"runtime"
"strings"
"sync"
)
type Archive struct {
sync.Mutex
TrimPrefix string
Files *IncludedFiles
}
// Creates an archive at dst with all of the files defined in the included files struct.
func (a *Archive) Create(dst string, ctx context.Context) error {
f, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
return err
}
defer f.Close()
// Select a writer based off of the WriteLimit configuration option.
var writer io.Writer
if writeLimit := config.Get().System.Backups.WriteLimit; writeLimit < 1 {
// If there is no write limit, use the file as the writer.
writer = f
} else {
// Token bucket with a capacity of "writeLimit" MiB, adding "writeLimit" MiB/s
bucket := ratelimit.NewBucketWithRate(float64(writeLimit)*1024*1024, int64(writeLimit)*1024*1024)
// Wrap the file writer with the token bucket limiter.
writer = ratelimit.Writer(f, bucket)
}
maxCpu := runtime.NumCPU() / 2
if maxCpu > 4 {
maxCpu = 4
}
gzw, err := gzip.NewWriterLevel(writer, gzip.BestSpeed)
if err != nil {
return errors.WithMessage(err, "failed to create gzip writer")
}
if err := gzw.SetConcurrency(1<<20, maxCpu); err != nil {
return errors.WithMessage(err, "failed to set gzip concurrency")
}
defer gzw.Flush()
defer gzw.Close()
tw := tar.NewWriter(gzw)
defer tw.Flush()
defer tw.Close()
wg := sizedwaitgroup.New(10)
g, ctx := errgroup.WithContext(ctx)
// Iterate over all of the files to be included and put them into the archive. This is
// done as a concurrent goroutine to speed things along. If an error is encountered at
// any step, the entire process is aborted.
for _, p := range a.Files.All() {
p := p
g.Go(func() error {
wg.Add()
defer wg.Done()
select {
case <-ctx.Done():
return ctx.Err()
default:
return a.addToArchive(p, tw)
}
})
}
// Block until the entire routine is completed.
if err := g.Wait(); err != nil {
f.Close()
// Attempt to remove the archive if there is an error, report that error to
// the logger if it fails.
if rerr := os.Remove(dst); rerr != nil && !os.IsNotExist(rerr) {
log.WithField("location", dst).Warn("failed to delete corrupted backup archive")
}
return err
}
return nil
}
// Adds a single file to the existing tar archive writer.
func (a *Archive) addToArchive(p string, w *tar.Writer) error {
f, err := os.Open(p)
if err != nil {
// If you try to backup something that no longer exists (got deleted somewhere during the process
// but not by this process), just skip over it and don't kill the entire backup.
if os.IsNotExist(err) {
return nil
}
return err
}
defer f.Close()
s, err := f.Stat()
if err != nil {
// Same as above, don't kill the process just because the file no longer exists.
if os.IsNotExist(err) {
return nil
}
return err
}
name := strings.TrimPrefix(p, a.TrimPrefix)
header, err := tar.FileInfoHeader(s, name)
if err != nil {
return errors.WithMessage(err, "failed to get tar#FileInfoHeader for "+name)
}
header.Name = name
// These actions must occur sequentially, even if this function is called multiple
// in parallel. You'll get some nasty panic's otherwise.
a.Lock()
defer a.Unlock()
if err := w.WriteHeader(header); err != nil {
return err
}
buf := make([]byte, 4*1024)
if _, err := io.CopyBuffer(w, io.LimitReader(f, header.Size), buf); err != nil {
return errors.WithMessage(err, "failed to copy "+header.Name+" to archive")
}
return nil
}

12
server/backup/backup.go
View File

@ -40,7 +40,7 @@ type Backup struct {
// An array of files to ignore when generating this backup. This should be
// compatible with a standard .gitignore structure.
IgnoredFiles []string `json:"ignored_files"`
Ignore string `json:"ignore"`
}
// noinspection GoNameStartsWithPackageName
@ -50,12 +50,12 @@ type BackupInterface interface {
// Generates a backup in whatever the configured source for the specific
// implementation is.
Generate(*IncludedFiles, string) (*ArchiveDetails, error)
Generate(string, string) (*ArchiveDetails, error)
// Returns the ignored files for this backup instance.
Ignored() []string
Ignored() string
// Returns a SHA256 checksum for the generated backup.
// Returns a SHA1 checksum for the generated backup.
Checksum() ([]byte, error)
// Returns the size of the generated backup.
@ -153,6 +153,6 @@ func (b *Backup) Details() *ArchiveDetails {
}
}
func (b *Backup) Ignored() []string {
return b.IgnoredFiles
func (b *Backup) Ignored() string {
return b.Ignore
}

14
server/backup/backup_local.go
View File

@ -1,8 +1,8 @@
package backup
import (
"context"
"errors"
"github.com/pterodactyl/wings/server/filesystem"
"os"
)
@ -18,7 +18,7 @@ func LocateLocal(uuid string) (*LocalBackup, os.FileInfo, error) {
b := &LocalBackup{
Backup{
Uuid: uuid,
IgnoredFiles: nil,
Ignore: "",
},
}
@ -41,13 +41,13 @@ func (b *LocalBackup) Remove() error {
// Generates a backup of the selected files and pushes it to the defined location
// for this instance.
func (b *LocalBackup) Generate(included *IncludedFiles, prefix string) (*ArchiveDetails, error) {
a := &Archive{
TrimPrefix: prefix,
Files: included,
func (b *LocalBackup) Generate(basePath, ignore string) (*ArchiveDetails, error) {
a := &filesystem.Archive{
BasePath: basePath,
Ignore: ignore,
}
if err := a.Create(b.Path(), context.Background()); err != nil {
if err := a.Create(b.Path()); err != nil {
return nil, err
}

6
server/backup/backup_request.go
View File

@ -8,7 +8,7 @@ import (
type Request struct {
Adapter string `json:"adapter"`
Uuid string `json:"uuid"`
IgnoredFiles []string `json:"ignored_files"`
Ignore string `json:"ignore"`
}
// Generates a new local backup struct.
@ -20,7 +20,7 @@ func (r *Request) NewLocalBackup() (*LocalBackup, error) {
return &LocalBackup{
Backup{
Uuid: r.Uuid,
IgnoredFiles: r.IgnoredFiles,
Ignore: r.Ignore,
},
}, nil
}
@ -34,7 +34,7 @@ func (r *Request) NewS3Backup() (*S3Backup, error) {
return &S3Backup{
Backup: Backup{
Uuid: r.Uuid,
IgnoredFiles: r.IgnoredFiles,
Ignore: r.Ignore,
},
}, nil
}

12
server/backup/backup_s3.go
View File

@ -1,10 +1,10 @@
package backup
import (
"context"
"fmt"
"github.com/apex/log"
"github.com/pterodactyl/wings/api"
"github.com/pterodactyl/wings/server/filesystem"
"io"
"net/http"
"os"
@ -19,15 +19,15 @@ var _ BackupInterface = (*S3Backup)(nil)
// Generates a new backup on the disk, moves it into the S3 bucket via the provided
// presigned URL, and then deletes the backup from the disk.
func (s *S3Backup) Generate(included *IncludedFiles, prefix string) (*ArchiveDetails, error) {
func (s *S3Backup) Generate(basePath, ignore string) (*ArchiveDetails, error) {
defer s.Remove()
a := &Archive{
TrimPrefix: prefix,
Files: included,
a := &filesystem.Archive{
BasePath: basePath,
Ignore: ignore,
}
if err := a.Create(s.Path(), context.Background()); err != nil {
if err := a.Create(s.Path()); err != nil {
return nil, err
}

25
server/backup/included.go
View File

@ -1,25 +0,0 @@
package backup
import (
"sync"
)
type IncludedFiles struct {
sync.RWMutex
files []string
}
// Pushes an additional file or folder onto the struct.
func (i *IncludedFiles) Push(p string) {
i.Lock()
i.files = append(i.files, p) // ~~
i.Unlock()
}
// Returns all of the files that were marked as being included.
func (i *IncludedFiles) All() []string {
i.RLock()
defer i.RUnlock()
return i.files
}

207
server/filesystem/archive.go Normal file
View File

@ -0,0 +1,207 @@
package filesystem
import (
"archive/tar"
"emperror.dev/errors"
"github.com/juju/ratelimit"
"github.com/karrick/godirwalk"
"github.com/klauspost/pgzip"
"github.com/pterodactyl/wings/config"
"github.com/sabhiram/go-gitignore"
"io"
"os"
"path/filepath"
"strings"
"sync"
)
const memory = 4 * 1024
var pool = sync.Pool{
New: func() interface{} {
b := make([]byte, memory)
return b
},
}
type Archive struct {
// BasePath is the absolute path to create the archive from where Files and Ignore are
// relative to.
BasePath string
// Ignore is a gitignore string (most likely read from a file) of files to ignore
// from the archive.
Ignore string
// Files specifies the files to archive, this takes priority over the Ignore option, if
// unspecified, all files in the BasePath will be archived unless Ignore is set.
Files []string
}
// Creates an archive at dst with all of the files defined in the included files struct.
func (a *Archive) Create(dst string) error {
f, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
return err
}
defer f.Close()
// Select a writer based off of the WriteLimit configuration option. If there is no
// write limit, use the file as the writer.
var writer io.Writer = f
writeLimit := int64(config.Get().System.Backups.WriteLimit * 1024 * 1024)
if writeLimit > 0 {
// Token bucket with a capacity of "writeLimit" MiB, adding "writeLimit" MiB/s
// and then wrap the file writer with the token bucket limiter.
writer = ratelimit.Writer(f, ratelimit.NewBucketWithRate(float64(writeLimit), writeLimit))
}
// Create a new gzip writer around the file.
gw, _ := pgzip.NewWriterLevel(writer, pgzip.BestSpeed)
_ = gw.SetConcurrency(1<<20, 1)
defer gw.Close()
// Create a new tar writer around the gzip writer.
tw := tar.NewWriter(gw)
defer tw.Close()
// Configure godirwalk.
options := &godirwalk.Options{
FollowSymbolicLinks: false,
Unsorted: true,
Callback: a.callback(tw),
}
// If we're specifically looking for only certain files, or have requested
// that certain files be ignored we'll update the callback function to reflect
// that request.
if len(a.Files) == 0 && len(a.Ignore) > 0 {
i := ignore.CompileIgnoreLines(strings.Split(a.Ignore, "\n")...)
options.Callback = a.callback(tw, func(_ string, rp string) error {
if i.MatchesPath(rp) {
return godirwalk.SkipThis
}
return nil
})
} else if len(a.Files) > 0 {
options.Callback = a.withFilesCallback(tw)
}
// Recursively walk the path we are archiving.
return godirwalk.Walk(a.BasePath, options)
}
// Callback function used to determine if a given file should be included in the archive
// being generated.
func (a *Archive) callback(tw *tar.Writer, opts ...func(path string, relative string) error) func(path string, de *godirwalk.Dirent) error {
return func(path string, de *godirwalk.Dirent) error {
// Skip directories because we walking them recursively.
if de.IsDir() {
return nil
}
relative := filepath.ToSlash(strings.TrimPrefix(path, a.BasePath+string(filepath.Separator)))
// Call the additional options passed to this callback function. If any of them return
// a non-nil error we will exit immediately.
for _, opt := range opts {
if err := opt(path, relative); err != nil {
return err
}
}
// Add the file to the archive, if it is nested in a directory,
// the directory will be automatically "created" in the archive.
return a.addToArchive(path, relative, tw)
}
}
// Pushes only files defined in the Files key to the final archive.
func (a *Archive) withFilesCallback(tw *tar.Writer) func(path string, de *godirwalk.Dirent) error {
return a.callback(tw, func(p string, rp string) error {
for _, f := range a.Files {
// If the given doesn't match, or doesn't have the same prefix continue
// to the next item in the loop.
if p != f && !strings.HasPrefix(p, f) {
continue
}
// Once we have a match return a nil value here so that the loop stops and the
// call to this function will correctly include the file in the archive. If there
// are no matches we'll never make it to this line, and the final error returned
// will be the godirwalk.SkipThis error.
return nil
}
return godirwalk.SkipThis
})
}
// Adds a given file path to the final archive being created.
func (a *Archive) addToArchive(p string, rp string, w *tar.Writer) error {
// Lstat the file, this will give us the same information as Stat except
// that it will not follow a symlink to it's target automatically.
s, err := os.Lstat(p)
if err != nil {
if os.IsNotExist(err) {
return nil
}
return errors.WithMessage(err, "failed to Lstat '"+rp+"'")
}
// Resolve the symlink target if the file is a symlink.
var target string
if s.Mode()&os.ModeSymlink != 0 {
// Read the target of the symlink.
target, err = os.Readlink(s.Name())
if err != nil {
return errors.WithMessage(err, "failed to read symlink target for '"+rp+"'")
}
}
// Get the tar FileInfoHeader in order to add the file to the archive.
header, err := tar.FileInfoHeader(s, filepath.ToSlash(target))
if err != nil {
return errors.WithMessagef(err, "failed to get tar#FileInfoHeader for '%s'", rp)
}
// Fix the header name if the file is not a symlink.
if s.Mode()&os.ModeSymlink == 0 {
header.Name = rp
}
// Write the tar FileInfoHeader to the archive.
if err := w.WriteHeader(header); err != nil {
return errors.WithMessagef(err, "failed to write tar#FileInfoHeader for '%s'", rp)
}
// If the size of the file is less than 1 (most likely for symlinks), skip writing the file.
if header.Size < 1 {
return nil
}
// If the buffer size is larger than the file size, create a smaller buffer to hold the file.
var buf []byte
if header.Size < memory {
buf = make([]byte, header.Size)
} else {
// Get a fixed-size buffer from the pool to save on allocations.
buf = pool.Get().([]byte)
defer func() {
buf = make([]byte, memory)
pool.Put(buf)
}()
}
// Open the file.
f, err := os.Open(p)
if err != nil {
if os.IsNotExist(err) {
return nil
}
return errors.WithMessagef(err, "failed to open '%s' for copying", header.Name)
}
defer f.Close()
// Copy the file's contents to the archive using our buffer.
if _, err := io.CopyBuffer(w, io.LimitReader(f, header.Size), buf); err != nil {
return errors.WithMessagef(err, "failed to copy '%s' to archive", header.Name)
}
return nil
}

115
server/filesystem/compress.go
View File

@ -1,11 +1,7 @@
package filesystem
import (
"context"
"fmt"
"github.com/karrick/godirwalk"
"github.com/pterodactyl/wings/server/backup"
ignore "github.com/sabhiram/go-gitignore"
"os"
"path"
"path/filepath"
@ -13,60 +9,6 @@ import (
"time"
)
// Given a directory, iterate through all of the files and folders within it and determine
// if they should be included in the output based on an array of ignored matches. This uses
// standard .gitignore formatting to make that determination.
//
// If no ignored files are passed through you'll get the entire directory listing.
func (fs *Filesystem) GetIncludedFiles(dir string, ignored []string) (*backup.IncludedFiles, error) {
cleaned, err := fs.SafePath(dir)
if err != nil {
return nil, err
}
i, err := ignore.CompileIgnoreLines(ignored...)
if err != nil {
return nil, err
}
// Walk through all of the files and directories on a server. This callback only returns
// files found, and will keep walking deeper and deeper into directories.
inc := new(backup.IncludedFiles)
err = godirwalk.Walk(cleaned, &godirwalk.Options{
Unsorted: true,
Callback: func(p string, e *godirwalk.Dirent) error {
sp := p
if e.IsSymlink() {
sp, err = fs.SafePath(p)
if err != nil {
if IsErrorCode(err, ErrCodePathResolution) {
return godirwalk.SkipThis
}
return err
}
}
// Only push files into the result array since archives can't create an empty directory within them.
if !e.IsDir() {
// Avoid unnecessary parsing if there are no ignored files, nothing will match anyways
// so no reason to call the function.
if len(ignored) == 0 || !i.MatchesPath(strings.TrimPrefix(sp, fs.Path()+"/")) {
inc.Push(sp)
}
}
// We can't just abort if the path is technically ignored. It is possible there is a nested
// file or folder that should not be excluded, so in this case we need to just keep going
// until we get to a final state.
return nil
},
})
return inc, err
}
// Compresses all of the files matching the given paths in the specified directory. This function
// also supports passing nested paths to only compress certain files and folders when working in
// a larger directory. This effectively creates a local backup, but rather than ignoring specific
@ -90,69 +32,24 @@ func (fs *Filesystem) CompressFiles(dir string, paths []string) (os.FileInfo, er
return nil, err
}
inc := new(backup.IncludedFiles)
// Iterate over all of the cleaned paths and merge them into a large object of final file
// paths to pass into the archiver. As directories are encountered this will drop into them
// and look for all of the files.
for _, p := range cleaned {
f, err := os.Stat(p)
if err != nil {
fs.error(err).WithField("path", p).Debug("failed to stat file or directory for compression")
continue
}
a := &Archive{BasePath: cleanedRootDir, Files: cleaned}
d := path.Join(
cleanedRootDir,
fmt.Sprintf("archive-%s.tar.gz", strings.ReplaceAll(time.Now().Format(time.RFC3339), ":", "")),
)
if !f.IsDir() {
inc.Push(p)
} else {
err := godirwalk.Walk(p, &godirwalk.Options{
Unsorted: true,
Callback: func(p string, e *godirwalk.Dirent) error {
sp := p
if e.IsSymlink() {
// Ensure that any symlinks are properly resolved to their final destination. If
// that destination is outside the server directory skip over this entire item, otherwise
// use the resolved location for the rest of this function.
sp, err = fs.SafePath(p)
if err != nil {
if IsErrorCode(err, ErrCodePathResolution) {
return godirwalk.SkipThis
}
return err
}
}
if !e.IsDir() {
inc.Push(sp)
}
return nil
},
})
if err != nil {
return nil, err
}
}
}
a := &backup.Archive{TrimPrefix: fs.Path(), Files: inc}
d := path.Join(cleanedRootDir, fmt.Sprintf("archive-%s.tar.gz", strings.ReplaceAll(time.Now().Format(time.RFC3339), ":", "")))
if err := a.Create(d, context.Background()); err != nil {
if err := a.Create(d); err != nil {
return nil, err
}
f, err := os.Stat(d)
if err != nil {
_ = os.Remove(d)
return nil, err
}
if err := fs.HasSpaceFor(f.Size()); err != nil {
_ = os.Remove(d)
return nil, err
}