428 lines
12 KiB
Go
428 lines
12 KiB
Go
// Copyright 2016 The Gogs Authors. All rights reserved.
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// Copyright 2018 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package models
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import (
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"fmt"
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"strings"
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"time"
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"code.gitea.io/git"
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"code.gitea.io/gitea/modules/cache"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/process"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/sync"
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"code.gitea.io/gitea/modules/util"
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"github.com/Unknwon/com"
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"github.com/go-xorm/xorm"
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"gopkg.in/ini.v1"
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)
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// MirrorQueue holds an UniqueQueue object of the mirror
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var MirrorQueue = sync.NewUniqueQueue(setting.Repository.MirrorQueueLength)
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// Mirror represents mirror information of a repository.
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type Mirror struct {
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ID int64 `xorm:"pk autoincr"`
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RepoID int64 `xorm:"INDEX"`
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Repo *Repository `xorm:"-"`
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Interval time.Duration
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EnablePrune bool `xorm:"NOT NULL DEFAULT true"`
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UpdatedUnix util.TimeStamp `xorm:"INDEX"`
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NextUpdateUnix util.TimeStamp `xorm:"INDEX"`
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address string `xorm:"-"`
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}
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// BeforeInsert will be invoked by XORM before inserting a record
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func (m *Mirror) BeforeInsert() {
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if m != nil {
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m.UpdatedUnix = util.TimeStampNow()
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m.NextUpdateUnix = util.TimeStampNow()
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}
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}
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// AfterLoad is invoked from XORM after setting the values of all fields of this object.
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func (m *Mirror) AfterLoad(session *xorm.Session) {
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if m == nil {
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return
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}
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var err error
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m.Repo, err = getRepositoryByID(session, m.RepoID)
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if err != nil {
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log.Error(3, "getRepositoryByID[%d]: %v", m.ID, err)
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}
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}
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// ScheduleNextUpdate calculates and sets next update time.
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func (m *Mirror) ScheduleNextUpdate() {
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if m.Interval != 0 {
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m.NextUpdateUnix = util.TimeStampNow().AddDuration(m.Interval)
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} else {
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m.NextUpdateUnix = 0
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}
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}
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func remoteAddress(repoPath string) (string, error) {
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cfg, err := ini.Load(GitConfigPath(repoPath))
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if err != nil {
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return "", err
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}
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return cfg.Section("remote \"origin\"").Key("url").Value(), nil
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}
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func (m *Mirror) readAddress() {
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if len(m.address) > 0 {
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return
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}
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var err error
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m.address, err = remoteAddress(m.Repo.RepoPath())
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if err != nil {
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log.Error(4, "remoteAddress: %v", err)
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}
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}
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// sanitizeOutput sanitizes output of a command, replacing occurrences of the
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// repository's remote address with a sanitized version.
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func sanitizeOutput(output, repoPath string) (string, error) {
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remoteAddr, err := remoteAddress(repoPath)
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if err != nil {
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// if we're unable to load the remote address, then we're unable to
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// sanitize.
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return "", err
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}
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return util.SanitizeMessage(output, remoteAddr), nil
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}
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// Address returns mirror address from Git repository config without credentials.
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func (m *Mirror) Address() string {
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m.readAddress()
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return util.SanitizeURLCredentials(m.address, false)
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}
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// FullAddress returns mirror address from Git repository config.
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func (m *Mirror) FullAddress() string {
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m.readAddress()
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return m.address
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}
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// SaveAddress writes new address to Git repository config.
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func (m *Mirror) SaveAddress(addr string) error {
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configPath := m.Repo.GitConfigPath()
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cfg, err := ini.Load(configPath)
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if err != nil {
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return fmt.Errorf("Load: %v", err)
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}
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cfg.Section("remote \"origin\"").Key("url").SetValue(addr)
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return cfg.SaveToIndent(configPath, "\t")
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}
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// gitShortEmptySha Git short empty SHA
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const gitShortEmptySha = "0000000"
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// mirrorSyncResult contains information of a updated reference.
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// If the oldCommitID is "0000000", it means a new reference, the value of newCommitID is empty.
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// If the newCommitID is "0000000", it means the reference is deleted, the value of oldCommitID is empty.
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type mirrorSyncResult struct {
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refName string
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oldCommitID string
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newCommitID string
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}
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// parseRemoteUpdateOutput detects create, update and delete operations of references from upstream.
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func parseRemoteUpdateOutput(output string) []*mirrorSyncResult {
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results := make([]*mirrorSyncResult, 0, 3)
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lines := strings.Split(output, "\n")
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for i := range lines {
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// Make sure reference name is presented before continue
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idx := strings.Index(lines[i], "-> ")
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if idx == -1 {
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continue
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}
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refName := lines[i][idx+3:]
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switch {
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case strings.HasPrefix(lines[i], " * "): // New reference
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results = append(results, &mirrorSyncResult{
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refName: refName,
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oldCommitID: gitShortEmptySha,
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})
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case strings.HasPrefix(lines[i], " - "): // Delete reference
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results = append(results, &mirrorSyncResult{
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refName: refName,
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newCommitID: gitShortEmptySha,
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})
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case strings.HasPrefix(lines[i], " "): // New commits of a reference
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delimIdx := strings.Index(lines[i][3:], " ")
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if delimIdx == -1 {
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log.Error(2, "SHA delimiter not found: %q", lines[i])
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continue
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}
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shas := strings.Split(lines[i][3:delimIdx+3], "..")
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if len(shas) != 2 {
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log.Error(2, "Expect two SHAs but not what found: %q", lines[i])
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continue
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}
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results = append(results, &mirrorSyncResult{
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refName: refName,
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oldCommitID: shas[0],
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newCommitID: shas[1],
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})
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default:
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log.Warn("parseRemoteUpdateOutput: unexpected update line %q", lines[i])
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}
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}
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return results
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}
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// runSync returns true if sync finished without error.
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func (m *Mirror) runSync() ([]*mirrorSyncResult, bool) {
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repoPath := m.Repo.RepoPath()
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wikiPath := m.Repo.WikiPath()
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timeout := time.Duration(setting.Git.Timeout.Mirror) * time.Second
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gitArgs := []string{"remote", "update"}
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if m.EnablePrune {
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gitArgs = append(gitArgs, "--prune")
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}
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_, stderr, err := process.GetManager().ExecDir(
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timeout, repoPath, fmt.Sprintf("Mirror.runSync: %s", repoPath),
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"git", gitArgs...)
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if err != nil {
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// sanitize the output, since it may contain the remote address, which may
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// contain a password
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message, err := sanitizeOutput(stderr, repoPath)
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if err != nil {
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log.Error(4, "sanitizeOutput: %v", err)
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return nil, false
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}
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desc := fmt.Sprintf("Failed to update mirror repository '%s': %s", repoPath, message)
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log.Error(4, desc)
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if err = CreateRepositoryNotice(desc); err != nil {
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log.Error(4, "CreateRepositoryNotice: %v", err)
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}
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return nil, false
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}
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output := stderr
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gitRepo, err := git.OpenRepository(repoPath)
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if err != nil {
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log.Error(4, "OpenRepository: %v", err)
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return nil, false
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}
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if err = SyncReleasesWithTags(m.Repo, gitRepo); err != nil {
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log.Error(4, "Failed to synchronize tags to releases for repository: %v", err)
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}
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if err := m.Repo.UpdateSize(); err != nil {
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log.Error(4, "Failed to update size for mirror repository: %v", err)
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}
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if m.Repo.HasWiki() {
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if _, stderr, err := process.GetManager().ExecDir(
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timeout, wikiPath, fmt.Sprintf("Mirror.runSync: %s", wikiPath),
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"git", "remote", "update", "--prune"); err != nil {
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// sanitize the output, since it may contain the remote address, which may
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// contain a password
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message, err := sanitizeOutput(stderr, wikiPath)
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if err != nil {
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log.Error(4, "sanitizeOutput: %v", err)
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return nil, false
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}
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desc := fmt.Sprintf("Failed to update mirror wiki repository '%s': %s", wikiPath, message)
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log.Error(4, desc)
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if err = CreateRepositoryNotice(desc); err != nil {
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log.Error(4, "CreateRepositoryNotice: %v", err)
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}
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return nil, false
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}
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}
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branches, err := m.Repo.GetBranches()
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if err != nil {
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log.Error(4, "GetBranches: %v", err)
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return nil, false
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}
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for i := range branches {
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cache.Remove(m.Repo.GetCommitsCountCacheKey(branches[i].Name, true))
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}
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m.UpdatedUnix = util.TimeStampNow()
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return parseRemoteUpdateOutput(output), true
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}
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func getMirrorByRepoID(e Engine, repoID int64) (*Mirror, error) {
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m := &Mirror{RepoID: repoID}
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has, err := e.Get(m)
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if err != nil {
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return nil, err
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} else if !has {
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return nil, ErrMirrorNotExist
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}
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return m, nil
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}
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// GetMirrorByRepoID returns mirror information of a repository.
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func GetMirrorByRepoID(repoID int64) (*Mirror, error) {
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return getMirrorByRepoID(x, repoID)
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}
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func updateMirror(e Engine, m *Mirror) error {
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_, err := e.ID(m.ID).AllCols().Update(m)
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return err
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}
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// UpdateMirror updates the mirror
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func UpdateMirror(m *Mirror) error {
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return updateMirror(x, m)
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}
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// DeleteMirrorByRepoID deletes a mirror by repoID
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func DeleteMirrorByRepoID(repoID int64) error {
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_, err := x.Delete(&Mirror{RepoID: repoID})
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return err
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}
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// MirrorUpdate checks and updates mirror repositories.
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func MirrorUpdate() {
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if !taskStatusTable.StartIfNotRunning(mirrorUpdate) {
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return
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}
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defer taskStatusTable.Stop(mirrorUpdate)
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log.Trace("Doing: MirrorUpdate")
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if err := x.
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Where("next_update_unix<=?", time.Now().Unix()).
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And("next_update_unix!=0").
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Iterate(new(Mirror), func(idx int, bean interface{}) error {
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m := bean.(*Mirror)
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if m.Repo == nil {
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log.Error(4, "Disconnected mirror repository found: %d", m.ID)
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return nil
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}
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MirrorQueue.Add(m.RepoID)
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return nil
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}); err != nil {
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log.Error(4, "MirrorUpdate: %v", err)
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}
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}
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// SyncMirrors checks and syncs mirrors.
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// TODO: sync more mirrors at same time.
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func SyncMirrors() {
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sess := x.NewSession()
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defer sess.Close()
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// Start listening on new sync requests.
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for repoID := range MirrorQueue.Queue() {
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log.Trace("SyncMirrors [repo_id: %v]", repoID)
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MirrorQueue.Remove(repoID)
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m, err := GetMirrorByRepoID(com.StrTo(repoID).MustInt64())
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if err != nil {
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log.Error(4, "GetMirrorByRepoID [%s]: %v", repoID, err)
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continue
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}
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results, ok := m.runSync()
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if !ok {
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continue
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}
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m.ScheduleNextUpdate()
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if err = updateMirror(sess, m); err != nil {
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log.Error(4, "UpdateMirror [%s]: %v", repoID, err)
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continue
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}
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var gitRepo *git.Repository
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if len(results) == 0 {
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log.Trace("SyncMirrors [repo_id: %d]: no commits fetched", m.RepoID)
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} else {
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gitRepo, err = git.OpenRepository(m.Repo.RepoPath())
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if err != nil {
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log.Error(2, "OpenRepository [%d]: %v", m.RepoID, err)
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continue
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}
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}
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for _, result := range results {
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// Discard GitHub pull requests, i.e. refs/pull/*
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if strings.HasPrefix(result.refName, "refs/pull/") {
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continue
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}
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// Create reference
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if result.oldCommitID == gitShortEmptySha {
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if err = MirrorSyncCreateAction(m.Repo, result.refName); err != nil {
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log.Error(2, "MirrorSyncCreateAction [repo_id: %d]: %v", m.RepoID, err)
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}
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continue
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}
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// Delete reference
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if result.newCommitID == gitShortEmptySha {
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if err = MirrorSyncDeleteAction(m.Repo, result.refName); err != nil {
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log.Error(2, "MirrorSyncDeleteAction [repo_id: %d]: %v", m.RepoID, err)
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}
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continue
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}
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// Push commits
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oldCommitID, err := git.GetFullCommitID(gitRepo.Path, result.oldCommitID)
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if err != nil {
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log.Error(2, "GetFullCommitID [%d]: %v", m.RepoID, err)
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continue
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}
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newCommitID, err := git.GetFullCommitID(gitRepo.Path, result.newCommitID)
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if err != nil {
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log.Error(2, "GetFullCommitID [%d]: %v", m.RepoID, err)
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continue
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}
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commits, err := gitRepo.CommitsBetweenIDs(newCommitID, oldCommitID)
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if err != nil {
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log.Error(2, "CommitsBetweenIDs [repo_id: %d, new_commit_id: %s, old_commit_id: %s]: %v", m.RepoID, newCommitID, oldCommitID, err)
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continue
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}
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if err = MirrorSyncPushAction(m.Repo, MirrorSyncPushActionOptions{
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RefName: result.refName,
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OldCommitID: oldCommitID,
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NewCommitID: newCommitID,
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Commits: ListToPushCommits(commits),
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}); err != nil {
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log.Error(2, "MirrorSyncPushAction [repo_id: %d]: %v", m.RepoID, err)
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continue
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}
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}
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// Get latest commit date and update to current repository updated time
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commitDate, err := git.GetLatestCommitTime(m.Repo.RepoPath())
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if err != nil {
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log.Error(2, "GetLatestCommitDate [%s]: %v", m.RepoID, err)
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continue
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}
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if _, err = sess.Exec("UPDATE repository SET updated_unix = ? WHERE id = ?", commitDate.Unix(), m.RepoID); err != nil {
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log.Error(2, "Update repository 'updated_unix' [%s]: %v", m.RepoID, err)
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continue
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}
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}
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}
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// InitSyncMirrors initializes a go routine to sync the mirrors
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func InitSyncMirrors() {
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go SyncMirrors()
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}
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