1
1
mirror of https://github.com/go-gitea/gitea synced 2024-12-23 00:54:28 +00:00
gitea/cmd/dump.go
Johan Van de Wauw 49874b7aad
dump: Add option to skip index dirs (#21501)
closes #20683

Add an option to gitea dump to skip the bleve indexes, which can become
quite large (in my case the same size as the repo's) and can be
regenerated after restore.

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: zeripath <art27@cantab.net>
2022-10-24 11:19:21 +08:00

473 lines
13 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2016 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package cmd
import (
"fmt"
"io"
"os"
"path"
"path/filepath"
"strings"
"time"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
"code.gitea.io/gitea/modules/util"
"gitea.com/go-chi/session"
"github.com/mholt/archiver/v3"
"github.com/urfave/cli"
)
func addReader(w archiver.Writer, r io.ReadCloser, info os.FileInfo, customName string, verbose bool) error {
if verbose {
log.Info("Adding file %s", customName)
}
return w.Write(archiver.File{
FileInfo: archiver.FileInfo{
FileInfo: info,
CustomName: customName,
},
ReadCloser: r,
})
}
func addFile(w archiver.Writer, filePath, absPath string, verbose bool) error {
file, err := os.Open(absPath)
if err != nil {
return err
}
defer file.Close()
fileInfo, err := file.Stat()
if err != nil {
return err
}
return addReader(w, file, fileInfo, filePath, verbose)
}
func isSubdir(upper, lower string) (bool, error) {
if relPath, err := filepath.Rel(upper, lower); err != nil {
return false, err
} else if relPath == "." || !strings.HasPrefix(relPath, ".") {
return true, nil
}
return false, nil
}
type outputType struct {
Enum []string
Default string
selected string
}
func (o outputType) Join() string {
return strings.Join(o.Enum, ", ")
}
func (o *outputType) Set(value string) error {
for _, enum := range o.Enum {
if enum == value {
o.selected = value
return nil
}
}
return fmt.Errorf("allowed values are %s", o.Join())
}
func (o outputType) String() string {
if o.selected == "" {
return o.Default
}
return o.selected
}
var outputTypeEnum = &outputType{
Enum: []string{"zip", "tar", "tar.sz", "tar.gz", "tar.xz", "tar.bz2", "tar.br", "tar.lz4", "tar.zst"},
Default: "zip",
}
// CmdDump represents the available dump sub-command.
var CmdDump = cli.Command{
Name: "dump",
Usage: "Dump Gitea files and database",
Description: `Dump compresses all related files and database into zip file.
It can be used for backup and capture Gitea server image to send to maintainer`,
Action: runDump,
Flags: []cli.Flag{
cli.StringFlag{
Name: "file, f",
Value: fmt.Sprintf("gitea-dump-%d.zip", time.Now().Unix()),
Usage: "Name of the dump file which will be created. Supply '-' for stdout. See type for available types.",
},
cli.BoolFlag{
Name: "verbose, V",
Usage: "Show process details",
},
cli.StringFlag{
Name: "tempdir, t",
Value: os.TempDir(),
Usage: "Temporary dir path",
},
cli.StringFlag{
Name: "database, d",
Usage: "Specify the database SQL syntax",
},
cli.BoolFlag{
Name: "skip-repository, R",
Usage: "Skip the repository dumping",
},
cli.BoolFlag{
Name: "skip-log, L",
Usage: "Skip the log dumping",
},
cli.BoolFlag{
Name: "skip-custom-dir",
Usage: "Skip custom directory",
},
cli.BoolFlag{
Name: "skip-lfs-data",
Usage: "Skip LFS data",
},
cli.BoolFlag{
Name: "skip-attachment-data",
Usage: "Skip attachment data",
},
cli.BoolFlag{
Name: "skip-package-data",
Usage: "Skip package data",
},
cli.BoolFlag{
Name: "skip-index",
Usage: "Skip bleve index data",
},
cli.GenericFlag{
Name: "type",
Value: outputTypeEnum,
Usage: fmt.Sprintf("Dump output format: %s", outputTypeEnum.Join()),
},
},
}
func fatal(format string, args ...interface{}) {
fmt.Fprintf(os.Stderr, format+"\n", args...)
log.Fatal(format, args...)
}
func runDump(ctx *cli.Context) error {
var file *os.File
fileName := ctx.String("file")
outType := ctx.String("type")
if fileName == "-" {
file = os.Stdout
err := log.DelLogger("console")
if err != nil {
fatal("Deleting default logger failed. Can not write to stdout: %v", err)
}
} else {
for _, suffix := range outputTypeEnum.Enum {
if strings.HasSuffix(fileName, "."+suffix) {
fileName = strings.TrimSuffix(fileName, "."+suffix)
break
}
}
fileName += "." + outType
}
setting.LoadFromExisting()
// make sure we are logging to the console no matter what the configuration tells us do to
if _, err := setting.Cfg.Section("log").NewKey("MODE", "console"); err != nil {
fatal("Setting logging mode to console failed: %v", err)
}
if _, err := setting.Cfg.Section("log.console").NewKey("STDERR", "true"); err != nil {
fatal("Setting console logger to stderr failed: %v", err)
}
if !setting.InstallLock {
log.Error("Is '%s' really the right config path?\n", setting.CustomConf)
return fmt.Errorf("gitea is not initialized")
}
setting.NewServices() // cannot access session settings otherwise
stdCtx, cancel := installSignals()
defer cancel()
err := db.InitEngine(stdCtx)
if err != nil {
return err
}
if err := storage.Init(); err != nil {
return err
}
if file == nil {
file, err = os.Create(fileName)
if err != nil {
fatal("Unable to open %s: %v", fileName, err)
}
}
defer file.Close()
absFileName, err := filepath.Abs(fileName)
if err != nil {
return err
}
verbose := ctx.Bool("verbose")
var iface interface{}
if fileName == "-" {
iface, err = archiver.ByExtension(fmt.Sprintf(".%s", outType))
} else {
iface, err = archiver.ByExtension(fileName)
}
if err != nil {
fatal("Unable to get archiver for extension: %v", err)
}
w, _ := iface.(archiver.Writer)
if err := w.Create(file); err != nil {
fatal("Creating archiver.Writer failed: %v", err)
}
defer w.Close()
if ctx.IsSet("skip-repository") && ctx.Bool("skip-repository") {
log.Info("Skip dumping local repositories")
} else {
log.Info("Dumping local repositories... %s", setting.RepoRootPath)
if err := addRecursiveExclude(w, "repos", setting.RepoRootPath, []string{absFileName}, verbose); err != nil {
fatal("Failed to include repositories: %v", err)
}
if ctx.IsSet("skip-lfs-data") && ctx.Bool("skip-lfs-data") {
log.Info("Skip dumping LFS data")
} else if err := storage.LFS.IterateObjects(func(objPath string, object storage.Object) error {
info, err := object.Stat()
if err != nil {
return err
}
return addReader(w, object, info, path.Join("data", "lfs", objPath), verbose)
}); err != nil {
fatal("Failed to dump LFS objects: %v", err)
}
}
tmpDir := ctx.String("tempdir")
if _, err := os.Stat(tmpDir); os.IsNotExist(err) {
fatal("Path does not exist: %s", tmpDir)
}
dbDump, err := os.CreateTemp(tmpDir, "gitea-db.sql")
if err != nil {
fatal("Failed to create tmp file: %v", err)
}
defer func() {
if err := util.Remove(dbDump.Name()); err != nil {
log.Warn("Unable to remove temporary file: %s: Error: %v", dbDump.Name(), err)
}
}()
targetDBType := ctx.String("database")
if len(targetDBType) > 0 && targetDBType != setting.Database.Type {
log.Info("Dumping database %s => %s...", setting.Database.Type, targetDBType)
} else {
log.Info("Dumping database...")
}
if err := db.DumpDatabase(dbDump.Name(), targetDBType); err != nil {
fatal("Failed to dump database: %v", err)
}
if err := addFile(w, "gitea-db.sql", dbDump.Name(), verbose); err != nil {
fatal("Failed to include gitea-db.sql: %v", err)
}
if len(setting.CustomConf) > 0 {
log.Info("Adding custom configuration file from %s", setting.CustomConf)
if err := addFile(w, "app.ini", setting.CustomConf, verbose); err != nil {
fatal("Failed to include specified app.ini: %v", err)
}
}
if ctx.IsSet("skip-custom-dir") && ctx.Bool("skip-custom-dir") {
log.Info("Skipping custom directory")
} else {
customDir, err := os.Stat(setting.CustomPath)
if err == nil && customDir.IsDir() {
if is, _ := isSubdir(setting.AppDataPath, setting.CustomPath); !is {
if err := addRecursiveExclude(w, "custom", setting.CustomPath, []string{absFileName}, verbose); err != nil {
fatal("Failed to include custom: %v", err)
}
} else {
log.Info("Custom dir %s is inside data dir %s, skipped", setting.CustomPath, setting.AppDataPath)
}
} else {
log.Info("Custom dir %s doesn't exist, skipped", setting.CustomPath)
}
}
isExist, err := util.IsExist(setting.AppDataPath)
if err != nil {
log.Error("Unable to check if %s exists. Error: %v", setting.AppDataPath, err)
}
if isExist {
log.Info("Packing data directory...%s", setting.AppDataPath)
var excludes []string
if setting.Cfg.Section("session").Key("PROVIDER").Value() == "file" {
var opts session.Options
if err = json.Unmarshal([]byte(setting.SessionConfig.ProviderConfig), &opts); err != nil {
return err
}
excludes = append(excludes, opts.ProviderConfig)
}
if ctx.IsSet("skip-index") && ctx.Bool("skip-index") {
excludes = append(excludes, setting.Indexer.RepoPath)
excludes = append(excludes, setting.Indexer.IssuePath)
}
excludes = append(excludes, setting.RepoRootPath)
excludes = append(excludes, setting.LFS.Path)
excludes = append(excludes, setting.Attachment.Path)
excludes = append(excludes, setting.Packages.Path)
excludes = append(excludes, setting.LogRootPath)
excludes = append(excludes, absFileName)
if err := addRecursiveExclude(w, "data", setting.AppDataPath, excludes, verbose); err != nil {
fatal("Failed to include data directory: %v", err)
}
}
if ctx.IsSet("skip-attachment-data") && ctx.Bool("skip-attachment-data") {
log.Info("Skip dumping attachment data")
} else if err := storage.Attachments.IterateObjects(func(objPath string, object storage.Object) error {
info, err := object.Stat()
if err != nil {
return err
}
return addReader(w, object, info, path.Join("data", "attachments", objPath), verbose)
}); err != nil {
fatal("Failed to dump attachments: %v", err)
}
if ctx.IsSet("skip-package-data") && ctx.Bool("skip-package-data") {
log.Info("Skip dumping package data")
} else if err := storage.Packages.IterateObjects(func(objPath string, object storage.Object) error {
info, err := object.Stat()
if err != nil {
return err
}
return addReader(w, object, info, path.Join("data", "packages", objPath), verbose)
}); err != nil {
fatal("Failed to dump packages: %v", err)
}
// Doesn't check if LogRootPath exists before processing --skip-log intentionally,
// ensuring that it's clear the dump is skipped whether the directory's initialized
// yet or not.
if ctx.IsSet("skip-log") && ctx.Bool("skip-log") {
log.Info("Skip dumping log files")
} else {
isExist, err := util.IsExist(setting.LogRootPath)
if err != nil {
log.Error("Unable to check if %s exists. Error: %v", setting.LogRootPath, err)
}
if isExist {
if err := addRecursiveExclude(w, "log", setting.LogRootPath, []string{absFileName}, verbose); err != nil {
fatal("Failed to include log: %v", err)
}
}
}
if fileName != "-" {
if err = w.Close(); err != nil {
_ = util.Remove(fileName)
fatal("Failed to save %s: %v", fileName, err)
}
if err := os.Chmod(fileName, 0o600); err != nil {
log.Info("Can't change file access permissions mask to 0600: %v", err)
}
}
if fileName != "-" {
log.Info("Finish dumping in file %s", fileName)
} else {
log.Info("Finish dumping to stdout")
}
return nil
}
func contains(slice []string, s string) bool {
for _, v := range slice {
if v == s {
return true
}
}
return false
}
// addRecursiveExclude zips absPath to specified insidePath inside writer excluding excludeAbsPath
func addRecursiveExclude(w archiver.Writer, insidePath, absPath string, excludeAbsPath []string, verbose bool) error {
absPath, err := filepath.Abs(absPath)
if err != nil {
return err
}
dir, err := os.Open(absPath)
if err != nil {
return err
}
defer dir.Close()
files, err := dir.Readdir(0)
if err != nil {
return err
}
for _, file := range files {
currentAbsPath := path.Join(absPath, file.Name())
currentInsidePath := path.Join(insidePath, file.Name())
if file.IsDir() {
if !contains(excludeAbsPath, currentAbsPath) {
if err := addFile(w, currentInsidePath, currentAbsPath, false); err != nil {
return err
}
if err = addRecursiveExclude(w, currentInsidePath, currentAbsPath, excludeAbsPath, verbose); err != nil {
return err
}
}
} else {
// only copy regular files and symlink regular files, skip non-regular files like socket/pipe/...
shouldAdd := file.Mode().IsRegular()
if !shouldAdd && file.Mode()&os.ModeSymlink == os.ModeSymlink {
target, err := filepath.EvalSymlinks(currentAbsPath)
if err != nil {
return err
}
targetStat, err := os.Stat(target)
if err != nil {
return err
}
shouldAdd = targetStat.Mode().IsRegular()
}
if shouldAdd {
if err = addFile(w, currentInsidePath, currentAbsPath, verbose); err != nil {
return err
}
}
}
}
return nil
}