split into packages
This commit is contained in:
parent
18aae3afa6
commit
8d572a0c3f
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@ -0,0 +1,114 @@
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package arthur
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import (
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"bytes"
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"errors"
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"fmt"
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"io"
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"net"
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"os"
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"path/filepath"
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"strings"
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"text/tabwriter"
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"time"
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"git.csclub.uwaterloo.ca/public/merlin/config"
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"git.csclub.uwaterloo.ca/public/merlin/logger"
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"git.csclub.uwaterloo.ca/public/merlin/sync"
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)
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// get repo by name function in config
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func GetAndRunCommand(conn net.Conn) (newSync bool) {
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newSync = false
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defer conn.Close()
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var buf bytes.Buffer
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_, err := io.Copy(&buf, conn)
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if err != nil {
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logger.ErrLog(err.Error())
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return
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}
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command := buf.String()
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args := strings.Split(command, ":")
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respondAndLogErr := func(msg string) {
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logger.OutLog(msg)
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conn.Write([]byte(msg))
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}
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if args[0] == "status" {
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status := tabwriter.NewWriter(conn, 5, 5, 5, ' ', 0)
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fmt.Fprintf(status, "Repository\tLast Synced\tNext Expected Sync\n")
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// for time formating see https://pkg.go.dev/time#pkg-constants
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for name, repo := range config.RepoMap {
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fmt.Fprintf(status, "%s\t%s\t%s\n",
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name,
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time.Unix(repo.State.LastAttemptStartTime, 0).Format(time.RFC1123),
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time.Unix(repo.State.LastAttemptRunTime+int64(repo.Frequency), 0).Format(time.RFC1123),
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)
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}
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status.Flush()
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} else if args[0] == "sync" {
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if len(args) != 2 {
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respondAndLogErr("Could not parse sync command, forced sync fails.")
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return
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}
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if repo, inMap := config.RepoMap[args[1]]; inMap {
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logger.OutLog("Attempting to force sync of " + repo.Name)
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if sync.SyncIfPossible(repo) {
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conn.Write([]byte("Forced sync for " + repo.Name))
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newSync = true
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} else {
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respondAndLogErr("Cannot force sync: " + repo.Name + ", already syncing.")
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}
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} else {
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respondAndLogErr(args[1] + " is not tracked so cannot sync")
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}
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} else {
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respondAndLogErr("Received unrecognized command: " + command)
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}
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return
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}
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func UnixSockListener(connChan chan net.Conn, stopLisChan chan struct{}) {
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sockpath := config.Conf.SockPath
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// must remove cfg.SockPath otherwise get "bind: address already in use"
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if filepath.Ext(sockpath) != ".sock" {
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panic(fmt.Errorf("Socket file must end with .sock"))
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} else if _, err := os.Stat(sockpath); err == nil {
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if err := os.Remove(sockpath); err != nil {
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panic(err)
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}
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} else if !errors.Is(err, os.ErrNotExist) {
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panic(err)
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}
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ear, err := net.Listen("unix", sockpath)
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if err != nil {
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panic(err)
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}
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logger.OutLog("Listening to unix socket at " + sockpath)
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go func() {
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for {
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// will exit when ear is closed
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conn, err := ear.Accept()
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if err != nil {
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if ne, ok := err.(net.Error); ok && ne.Temporary() {
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logger.ErrLog("Accepted socket error: " + err.Error())
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continue
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}
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logger.ErrLog("Unhandlable socket error: " + err.Error())
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return
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}
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connChan <- conn
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}
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}()
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<-stopLisChan
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ear.Close()
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}
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@ -0,0 +1 @@
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package arthur
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@ -1 +0,0 @@
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package common
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@ -1,12 +1,11 @@
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package common
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package config
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import (
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"fmt"
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"os"
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"os/exec"
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"time"
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ini "gopkg.in/ini.v1"
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"gopkg.in/ini.v1"
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"git.csclub.uwaterloo.ca/public/merlin/logger"
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)
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const (
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TERMINATED // was killed by a signal
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)
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type Result struct {
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type SyncResult struct {
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Name string
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Exit int
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}
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type Repo struct {
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// the name of this repo
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Name string `ini:"-"`
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// this should be one of "csc-sync-standard", etc.
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SyncType string `ini:"sync_type"`
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// a human-readable frequency, e.g. "bi-hourly"
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FrequencyStr string `ini:"frequency"`
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// the desired interval (in seconds) between successive runs
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Frequency int `ini:"-"`
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// the maximum time (in seconds) that each child process of this repo
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// can for before being killed
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MaxTime int `ini:"max_time"`
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// where to download the files for this repo (relative to the download
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// dir in the config)
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LocalDir string `ini:"local_dir"`
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// the remote host to rsync from
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RsyncHost string `ini:"rsync_host"`
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// the remote directory on the rsync host
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RsyncDir string `ini:"rsync_dir"`
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// the rsync user (optional)
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RsyncUser string `ini:"rsync_user"`
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// the file storing the password for rsync (optional)
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PasswordFile string `ini:"password_file"`
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// the file for general logging of this repo
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LoggerFile string `ini:"log_file"`
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// a reference to the general logger
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Logger *Logger `ini:"-"`
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// the file for logging this repo's rsync
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RsyncLogFile string `ini:"rsync_log_file"`
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// the file for logging this repo's zfssync
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ZfssyncLogFile string `ini:"zfssync_log_file"`
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// the repo will write its name and status in a Result struct to DoneChan
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// when it has finished a job (shared by all repos)
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DoneChan chan<- Result `ini:"-"`
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// the repo should stop syncing if StopChan is closed (shared by all repos)
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StopChan chan struct{} `ini:"-"`
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// a struct that stores the repo's status
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State RepoState `ini:"-"`
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// a reference to the global config
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cfg *Config `ini:"-"`
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}
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type Config struct {
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// the maximum number of jobs allowed to execute concurrently
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MaxJobs int `ini:"max_jobs"`
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ZfssyncLogDir string `ini:"zfssync_log_dir"`
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// the Unix socket path which arthur will use to communicate with us
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SockPath string `ini:"sock_path"`
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// a list of all of the repos
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Repos []*Repo `ini:"-"`
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}
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type Repo struct {
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// the name of this repo
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Name string `ini:"-"`
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// this should be one of "csc-sync-standard", etc.
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SyncType string `ini:"sync_type"`
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// a human-readable frequency, e.g. "bi-hourly"
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FrequencyStr string `ini:"frequency"`
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// the desired interval (in seconds) between successive runs
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Frequency int `ini:"-"`
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// the maximum time (in seconds) that each child process of this repo
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// can for before being killed
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MaxTime int `ini:"max_time"`
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// where to download the files for this repo (relative to the download
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// dir in the config)
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LocalDir string `ini:"local_dir"`
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// the remote host to rsync from
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RsyncHost string `ini:"rsync_host"`
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// the remote directory on the rsync host
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RsyncDir string `ini:"rsync_dir"`
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// the rsync user (optional)
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RsyncUser string `ini:"rsync_user"`
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// the file storing the password for rsync (optional)
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PasswordFile string `ini:"password_file"`
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// the file for general logging of this repo
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LoggerFile string `ini:"log_file"`
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// a reference to the general logger
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Logger *logger.Logger `ini:"-"`
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// the file for logging this repo's rsync
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RsyncLogFile string `ini:"rsync_log_file"`
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// the file for logging this repo's zfssync
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ZfssyncLogFile string `ini:"zfssync_log_file"`
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// the repo will write its name and status in a Result struct to DoneChan
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// when it has finished a job (shared by all repos)
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DoneChan chan<- SyncResult `ini:"-"`
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// the repo should stop syncing if StopChan is closed (shared by all repos)
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StopChan chan struct{} `ini:"-"`
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// a struct that stores the repo's status
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State RepoState `ini:"-"`
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}
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// This should only be modified by the main thread
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@ -141,129 +136,18 @@ type RepoState struct {
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LastAttemptExit int `ini:"last_attempt_exit"`
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}
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// save the current state of the repo to a file
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func (repo *Repo) SaveState() {
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repo.Logger.Debug("Saving state")
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state_cfg := ini.Empty()
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if err := ini.ReflectFrom(state_cfg, &repo.State); err != nil {
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repo.Logger.Error(err.Error())
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}
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file, err := os.OpenFile(repo.cfg.StateDir+"/"+repo.Name, os.O_RDWR|os.O_CREATE, 0644)
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if err != nil {
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repo.Logger.Error(err.Error())
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}
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if _, err := state_cfg.WriteTo(file); err != nil {
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repo.Logger.Error(err.Error())
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}
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repo.Logger.Debug("Saved state")
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}
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// start sync job for this repo if more than repo.Frequency seconds have elapsed since its last job
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// and is not currently running.
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// returns true iff a job is started.
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func (repo *Repo) RunIfPossible() bool {
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if repo.State.IsRunning {
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return false
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}
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curTime := time.Now().Unix()
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if curTime-repo.State.LastAttemptStartTime > int64(repo.Frequency) {
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repo.State.IsRunning = true
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repo.State.LastAttemptStartTime = curTime
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repo.SaveState()
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repo.Logger.Info(fmt.Sprintf("Repo %s has started syncing", repo.Name))
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go repo.StartSyncJob()
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return true
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}
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return false
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}
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func zfsSync(repo *Repo) {
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out, err := exec.Command("/home/mirror/bin/zfssync", repo.Name).CombinedOutput()
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if err != nil {
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repo.Logger.Error(err)
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} else {
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f, err := os.OpenFile(repo.ZfssyncLogFile, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
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if err != nil {
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repo.Logger.Error(err.Error())
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} else {
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f.Write(out)
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}
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}
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}
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// update the repo state with the last attempt time and exit now that the job is done
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func (repo *Repo) SyncCompleted(exit int) {
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repoState := repo.State
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syncTook := time.Now().Unix() - repoState.LastAttemptStartTime
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nextSync := repo.MaxTime - int(syncTook)
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if nextSync < 0 {
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nextSync = 0
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}
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repoState.IsRunning = false
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repoState.LastAttemptExit = exit
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repoState.LastAttemptRunTime = syncTook
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var exitStr string
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switch exit {
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case SUCCESS:
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exitStr = "completed"
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case TERMINATED:
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exitStr = "terminated"
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default:
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exitStr = "failed"
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}
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repo.SaveState()
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repo.Logger.Info(fmt.Sprintf("Sync "+exitStr+" after running for %d seconds, will run again in %d seconds", syncTook, nextSync))
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if exit == SUCCESS {
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// it is possible that the zfssync from the last repo sync is still running is that fine?
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go zfsSync(repo)
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}
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}
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func panicIfErr(e error) {
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if e != nil {
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panic(e)
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}
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}
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func touchFile(file string) {
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fi, err := os.Stat(file)
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if err != nil {
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f, err := os.OpenFile(file, os.O_CREATE, 0644)
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if err != nil {
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panic(fmt.Errorf("unable to create file %s", file))
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}
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f.Close()
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} else if fi.IsDir() {
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panic(fmt.Errorf("%s is a directory", file))
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} else if os.Geteuid() != 1001 {
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// UID 1001 is the hardcoded uid for mirror
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err := os.Chown(file, 1001, os.Getegid())
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panicIfErr(err)
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} else if fi.Mode().Perm() != 0644 {
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err := os.Chmod(file, 0644)
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panicIfErr(err)
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}
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}
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func touchFiles(files ...string) {
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for _, file := range files {
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touchFile(file)
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}
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}
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var (
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Conf Config
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Repos []*Repo
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RepoMap map[string]*Repo
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)
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// GetConfig reads the config from a JSON file, initializes default values,
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// and initializes the non-configurable fields of each repo.
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// It returns a Config.
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func GetConfig(doneChan chan Result, stopChan chan struct{}) Config {
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// add global configuration in cfg
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data, err := ini.Load(CONFIG_PATH)
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panicIfErr(err)
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cfg := Config{
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func LoadConfig(doneChan chan SyncResult, stopChan chan struct{}) {
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// set default values then load config from file
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newConf := Config{
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MaxJobs: DEFAULT_MAX_JOBS,
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MaxTime: DEFAULT_MAX_TIME,
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PasswordDir: DEFAULT_PASSWORD_DIR,
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|
@ -273,36 +157,39 @@ func GetConfig(doneChan chan Result, stopChan chan struct{}) Config {
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RsyncLogDir: DEFAULT_RSYNC_LOG_DIR,
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ZfssyncLogDir: DEFAULT_ZFSSYNC_LOG_DIR,
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SockPath: DEFAULT_SOCK_PATH,
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Repos: make([]*Repo, 0),
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}
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err = data.MapTo(&cfg)
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iniInfo, err := ini.Load(CONFIG_PATH)
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panicIfErr(err)
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err = iniInfo.MapTo(&newConf)
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panicIfErr(err)
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for _, dir := range []string{cfg.StateDir, cfg.LoggerDir, cfg.RsyncLogDir, cfg.ZfssyncLogDir} {
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// check config for major errors
|
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for _, dir := range []string{Conf.StateDir, Conf.LoggerDir, Conf.RsyncLogDir, Conf.ZfssyncLogDir} {
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err := os.MkdirAll(dir, 0755)
|
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panicIfErr(err)
|
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}
|
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if cfg.IPv4Address == "" {
|
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if Conf.IPv4Address == "" {
|
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panic("Missing IPv4 address from config")
|
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} else if cfg.IPv6Address == "" {
|
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} else if Conf.IPv6Address == "" {
|
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panic("Missing IPv6 address from config")
|
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}
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// add each repo configuration to cfg
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for _, section := range data.Sections() {
|
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newRepos := make([]*Repo, 0)
|
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for _, section := range iniInfo.Sections() {
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repoName := section.Name()
|
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if repoName == "DEFAULT" {
|
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continue
|
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}
|
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|
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// set the default values for the repo then load from file
|
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repo := Repo{
|
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Name: repoName,
|
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SyncType: cfg.SyncType,
|
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FrequencyStr: cfg.FrequencyStr,
|
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MaxTime: cfg.MaxTime,
|
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LoggerFile: cfg.LoggerDir + "/" + repoName + ".log",
|
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RsyncLogFile: cfg.RsyncLogDir + "/" + repoName + "-rsync.log",
|
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ZfssyncLogFile: cfg.ZfssyncLogDir + "/" + repoName + "-zfssync.log",
|
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SyncType: Conf.SyncType,
|
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FrequencyStr: Conf.FrequencyStr,
|
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MaxTime: Conf.MaxTime,
|
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LoggerFile: Conf.LoggerDir + "/" + repoName + ".log",
|
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RsyncLogFile: Conf.RsyncLogDir + "/" + repoName + "-rsync.log",
|
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ZfssyncLogFile: Conf.ZfssyncLogDir + "/" + repoName + "-zfssync.log",
|
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DoneChan: doneChan,
|
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StopChan: stopChan,
|
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}
|
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|
@ -314,15 +201,13 @@ func GetConfig(doneChan chan Result, stopChan chan struct{}) Config {
|
|||
repo.RsyncLogFile,
|
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repo.ZfssyncLogFile,
|
||||
)
|
||||
|
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repo.Logger = NewLogger(repo.Name, repo.LoggerFile)
|
||||
repo.Logger = logger.NewLogger(repo.Name, repo.LoggerFile)
|
||||
repo.Frequency = frequencies[repo.FrequencyStr]
|
||||
if repo.SyncType == "" {
|
||||
panic("Missing sync type from " + repo.Name)
|
||||
} else if repo.Frequency == 0 {
|
||||
panic("Missing or invalid frequency for " + repo.Name)
|
||||
}
|
||||
repo.cfg = &cfg
|
||||
|
||||
repo.State = RepoState{
|
||||
IsRunning: false,
|
||||
|
@ -332,7 +217,7 @@ func GetConfig(doneChan chan Result, stopChan chan struct{}) Config {
|
|||
}
|
||||
|
||||
// create the state file if it does not exist, otherwise load it from existing file
|
||||
repoStateFile := cfg.StateDir + "/" + repo.Name
|
||||
repoStateFile := Conf.StateDir + "/" + repo.Name
|
||||
if _, err := os.Stat(repoStateFile); err != nil {
|
||||
touchFile(repoStateFile)
|
||||
repo.SaveState()
|
||||
|
@ -341,12 +226,33 @@ func GetConfig(doneChan chan Result, stopChan chan struct{}) Config {
|
|||
panicIfErr(err)
|
||||
}
|
||||
|
||||
cfg.Repos = append(cfg.Repos, &repo)
|
||||
newRepos = append(newRepos, &repo)
|
||||
}
|
||||
|
||||
if len(cfg.Repos) == 0 {
|
||||
if len(newRepos) == 0 {
|
||||
panic("No repos found in config")
|
||||
}
|
||||
|
||||
return cfg
|
||||
Conf = newConf
|
||||
Repos = newRepos
|
||||
for _, repo := range Repos {
|
||||
RepoMap[repo.Name] = repo
|
||||
}
|
||||
}
|
||||
|
||||
// save the current state of the repo to a file
|
||||
func (repo *Repo) SaveState() {
|
||||
repo.Logger.Debug("Saving state")
|
||||
state_cfg := ini.Empty()
|
||||
if err := ini.ReflectFrom(state_cfg, &repo.State); err != nil {
|
||||
repo.Logger.Error(err.Error())
|
||||
}
|
||||
file, err := os.OpenFile(Conf.StateDir+"/"+repo.Name, os.O_RDWR|os.O_CREATE, 0644)
|
||||
if err != nil {
|
||||
repo.Logger.Error(err.Error())
|
||||
}
|
||||
if _, err := state_cfg.WriteTo(file); err != nil {
|
||||
repo.Logger.Error(err.Error())
|
||||
}
|
||||
repo.Logger.Debug("Saved state")
|
||||
}
|
|
@ -0,0 +1 @@
|
|||
package config
|
|
@ -0,0 +1,38 @@
|
|||
package config
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
)
|
||||
|
||||
func panicIfErr(e error) {
|
||||
if e != nil {
|
||||
panic(e)
|
||||
}
|
||||
}
|
||||
|
||||
func touchFile(file string) {
|
||||
fi, err := os.Stat(file)
|
||||
if err != nil {
|
||||
f, err := os.OpenFile(file, os.O_CREATE, 0644)
|
||||
if err != nil {
|
||||
panic(fmt.Errorf("unable to create file %s", file))
|
||||
}
|
||||
f.Close()
|
||||
} else if fi.IsDir() {
|
||||
panic(fmt.Errorf("%s is a directory", file))
|
||||
} else if os.Geteuid() != 1001 {
|
||||
// UID 1001 is the hardcoded uid for mirror
|
||||
err := os.Chown(file, 1001, os.Getegid())
|
||||
panicIfErr(err)
|
||||
} else if fi.Mode().Perm() != 0644 {
|
||||
err := os.Chmod(file, 0644)
|
||||
panicIfErr(err)
|
||||
}
|
||||
}
|
||||
|
||||
func touchFiles(files ...string) {
|
||||
for _, file := range files {
|
||||
touchFile(file)
|
||||
}
|
||||
}
|
|
@ -1,4 +1,4 @@
|
|||
package common
|
||||
package logger
|
||||
|
||||
import (
|
||||
"log"
|
||||
|
@ -30,12 +30,12 @@ var levels = map[int]string{
|
|||
var outLogger = log.New(os.Stdout, "", log.LstdFlags)
|
||||
var errLogger = log.New(os.Stderr, "", log.LstdFlags)
|
||||
|
||||
func OutLogger() *log.Logger {
|
||||
return outLogger
|
||||
func OutLog(v ...interface{}) {
|
||||
outLogger.Println(v...)
|
||||
}
|
||||
|
||||
func ErrLogger() *log.Logger {
|
||||
return errLogger
|
||||
func ErrLog(v ...interface{}) {
|
||||
errLogger.Println(v...)
|
||||
}
|
||||
|
||||
func NewLogger(name, file string) *Logger {
|
||||
|
@ -48,15 +48,9 @@ func NewLogger(name, file string) *Logger {
|
|||
}
|
||||
|
||||
func (logger *Logger) Log(level int, v ...interface{}) {
|
||||
if level == INFO {
|
||||
outLogger.Println(append([]interface{}{"[" + logger.name + "]"}, v...))
|
||||
} else if level == ERROR {
|
||||
errLogger.Println(append([]interface{}{"[" + logger.name + "]"}, v...))
|
||||
}
|
||||
|
||||
f, err := os.OpenFile(logger.file, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
|
||||
if err != nil {
|
||||
errLogger.Println(err.Error())
|
||||
ErrLog(err.Error())
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
|
@ -65,7 +59,7 @@ func (logger *Logger) Log(level int, v ...interface{}) {
|
|||
args = append(args, v...)
|
||||
|
||||
logger.SetOutput(f)
|
||||
logger.Println(v...)
|
||||
logger.Println(args)
|
||||
}
|
||||
|
||||
func (logger *Logger) Debug(v ...interface{}) {
|
||||
|
@ -73,6 +67,7 @@ func (logger *Logger) Debug(v ...interface{}) {
|
|||
}
|
||||
|
||||
func (logger *Logger) Info(v ...interface{}) {
|
||||
OutLog(append([]interface{}{"[" + logger.name + "]"}, v...))
|
||||
logger.Log(INFO, v...)
|
||||
}
|
||||
|
||||
|
@ -81,5 +76,6 @@ func (logger *Logger) Warning(v ...interface{}) {
|
|||
}
|
||||
|
||||
func (logger *Logger) Error(v ...interface{}) {
|
||||
ErrLog(append([]interface{}{"[" + logger.name + "]"}, v...))
|
||||
logger.Log(ERROR, v...)
|
||||
}
|
189
merlin/merlin.go
189
merlin/merlin.go
|
@ -1,153 +1,32 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"log"
|
||||
"net"
|
||||
"os"
|
||||
"os/signal"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
"syscall"
|
||||
"text/tabwriter"
|
||||
"time"
|
||||
|
||||
"git.csclub.uwaterloo.ca/public/merlin/common"
|
||||
"golang.org/x/sys/unix"
|
||||
|
||||
"git.csclub.uwaterloo.ca/public/merlin/arthur"
|
||||
"git.csclub.uwaterloo.ca/public/merlin/config"
|
||||
"git.csclub.uwaterloo.ca/public/merlin/logger"
|
||||
"git.csclub.uwaterloo.ca/public/merlin/sync"
|
||||
)
|
||||
|
||||
var (
|
||||
cfg common.Config
|
||||
outLogger *log.Logger
|
||||
errLogger *log.Logger
|
||||
repoMap map[string]*common.Repo
|
||||
repoIdx int
|
||||
numJobsRunning int
|
||||
)
|
||||
|
||||
func getAndRunCommand(conn net.Conn) {
|
||||
defer conn.Close()
|
||||
|
||||
var buf bytes.Buffer
|
||||
_, err := io.Copy(&buf, conn)
|
||||
if err != nil {
|
||||
errLogger.Println(err.Error())
|
||||
return
|
||||
}
|
||||
|
||||
command := buf.String()
|
||||
args := strings.Split(command, ":")
|
||||
respondAndLogErr := func(msg string) {
|
||||
outLogger.Println(msg)
|
||||
conn.Write([]byte(msg))
|
||||
}
|
||||
|
||||
if args[0] == "status" {
|
||||
status := tabwriter.NewWriter(conn, 5, 5, 5, ' ', 0)
|
||||
fmt.Fprintf(status, "Repository\tLast Synced\tNext Expected Sync\n")
|
||||
|
||||
// for time formating see https://pkg.go.dev/time#pkg-constants
|
||||
for name, repo := range repoMap {
|
||||
fmt.Fprintf(status, "%s\t%s\t%s\n",
|
||||
name,
|
||||
time.Unix(repo.State.LastAttemptStartTime, 0).Format(time.RFC1123),
|
||||
time.Unix(repo.State.LastAttemptRunTime+int64(repo.Frequency), 0).Format(time.RFC1123),
|
||||
)
|
||||
}
|
||||
|
||||
status.Flush()
|
||||
} else if args[0] == "sync" {
|
||||
if len(args) != 2 {
|
||||
respondAndLogErr("Could not parse sync command, forced sync fails.")
|
||||
return
|
||||
}
|
||||
|
||||
if repo, inMap := repoMap[args[1]]; inMap {
|
||||
outLogger.Println("Attempting to force sync of " + repo.Name)
|
||||
if repo.RunIfPossible() {
|
||||
conn.Write([]byte("Forced sync for " + repo.Name))
|
||||
numJobsRunning++
|
||||
} else {
|
||||
respondAndLogErr("Cannot force sync: " + repo.Name + ", already syncing.")
|
||||
}
|
||||
} else {
|
||||
respondAndLogErr(args[1] + " is not tracked so cannot sync")
|
||||
}
|
||||
} else {
|
||||
respondAndLogErr("Received unrecognized command: " + command)
|
||||
}
|
||||
}
|
||||
|
||||
func unixSockListener(connChan chan net.Conn, stopLisChan chan struct{}) {
|
||||
// must remove cfg.SockPath otherwise get "bind: address already in use"
|
||||
if filepath.Ext(cfg.SockPath) != ".sock" {
|
||||
panic(fmt.Errorf("Socket file must end with .sock"))
|
||||
} else if _, err := os.Stat(cfg.SockPath); err == nil {
|
||||
if err := os.Remove(cfg.SockPath); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
} else if !errors.Is(err, os.ErrNotExist) {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
ear, err := net.Listen("unix", cfg.SockPath)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
outLogger.Println("Listening to unix socket at " + cfg.SockPath)
|
||||
|
||||
go func() {
|
||||
for {
|
||||
// will exit when ear is closed
|
||||
conn, err := ear.Accept()
|
||||
if err != nil {
|
||||
if ne, ok := err.(net.Error); ok && ne.Temporary() {
|
||||
errLogger.Println("Accepted socket error: " + err.Error())
|
||||
continue
|
||||
}
|
||||
errLogger.Println("Unhandlable socket error: " + err.Error())
|
||||
return
|
||||
}
|
||||
connChan <- conn
|
||||
}
|
||||
}()
|
||||
|
||||
<-stopLisChan
|
||||
ear.Close()
|
||||
}
|
||||
|
||||
// We use a round-robin strategy. It's not the most efficient, but it's simple
|
||||
// (read: easy to understand) and guarantees each repo will eventually get a chance to run.
|
||||
func runAsManyAsPossible() {
|
||||
repos := cfg.Repos
|
||||
startIdx := repoIdx
|
||||
|
||||
for numJobsRunning < cfg.MaxJobs {
|
||||
repo := repos[repoIdx]
|
||||
if repo.RunIfPossible() {
|
||||
numJobsRunning++
|
||||
}
|
||||
repoIdx = (repoIdx + 1) % len(repos)
|
||||
if repoIdx == startIdx {
|
||||
// we've come full circle
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func main() {
|
||||
outLogger = common.OutLogger()
|
||||
errLogger = common.ErrLogger()
|
||||
|
||||
// check that merlin is run as mirror user
|
||||
// check that mirror user has pid of 1001
|
||||
|
||||
doneChan := make(chan common.Result)
|
||||
// receives a Result struct when a repo stops syncing
|
||||
doneChan := make(chan config.SyncResult)
|
||||
// closed when merlin is told to stop running
|
||||
stopChan := make(chan struct{})
|
||||
// receives a Conn when a client makes a connection to unix socket
|
||||
connChan := make(chan net.Conn)
|
||||
// signal channel to stop listening to unix socket
|
||||
stopLisChan := make(chan struct{})
|
||||
|
||||
stopSig := make(chan os.Signal, 1)
|
||||
|
@ -157,24 +36,37 @@ func main() {
|
|||
|
||||
unix.Umask(002)
|
||||
|
||||
numJobsRunning = 0
|
||||
numJobsRunning := 0
|
||||
repoIdx := 0
|
||||
|
||||
loadConfig := func() {
|
||||
cfg = common.GetConfig(doneChan, stopChan)
|
||||
outLogger.Println("Loaded config:\n" + fmt.Sprintf("%+v\n", cfg))
|
||||
|
||||
repoMap = make(map[string]*common.Repo)
|
||||
for _, repo := range cfg.Repos {
|
||||
repoMap[repo.Name] = repo
|
||||
}
|
||||
config.LoadConfig(doneChan, stopChan)
|
||||
logger.OutLog("Loaded config:\n" + fmt.Sprintf("%+v\n", config.Conf))
|
||||
|
||||
repoIdx = 0
|
||||
go unixSockListener(connChan, stopLisChan)
|
||||
go arthur.UnixSockListener(connChan, stopLisChan)
|
||||
}
|
||||
// We use a round-robin strategy. It's not the most efficient, but it's simple
|
||||
// (read: easy to understand) and guarantees each repo will eventually get a chance to run.
|
||||
runAsManyAsPossible := func() {
|
||||
startIdx := repoIdx
|
||||
|
||||
for numJobsRunning < config.Conf.MaxJobs {
|
||||
repo := config.Repos[repoIdx]
|
||||
if sync.SyncIfPossible(repo) {
|
||||
numJobsRunning++
|
||||
}
|
||||
repoIdx = (repoIdx + 1) % len(config.Repos)
|
||||
if repoIdx == startIdx {
|
||||
// we've come full circle
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
loadConfig()
|
||||
// IsRunning must be false otherwise repo will never sync
|
||||
for _, repo := range repoMap {
|
||||
// ensure that IsRunning is false otherwise repo will never sync
|
||||
for _, repo := range config.RepoMap {
|
||||
repo.State.IsRunning = false
|
||||
}
|
||||
runAsManyAsPossible()
|
||||
|
@ -192,22 +84,27 @@ runLoop:
|
|||
loadConfig()
|
||||
|
||||
case done := <-doneChan:
|
||||
repoMap[done.Name].SyncCompleted(done.Exit)
|
||||
sync.SyncCompleted(config.RepoMap[done.Name], done.Exit)
|
||||
numJobsRunning--
|
||||
|
||||
case conn := <-connChan:
|
||||
getAndRunCommand(conn)
|
||||
// TODO: may want to split this into GetCommand and something else
|
||||
// to make it more clear tha GetAndRunCommand returns true if
|
||||
// it starts a sync
|
||||
if arthur.GetAndRunCommand(conn) {
|
||||
numJobsRunning--
|
||||
}
|
||||
|
||||
case <-time.After(1 * time.Minute):
|
||||
}
|
||||
runAsManyAsPossible()
|
||||
}
|
||||
|
||||
// give time for jobs to terminate before exiting
|
||||
// give time for all jobs to terminate before exiting program
|
||||
for {
|
||||
select {
|
||||
case done := <-doneChan:
|
||||
repoMap[done.Name].SyncCompleted(done.Exit)
|
||||
sync.SyncCompleted(config.RepoMap[done.Name], done.Exit)
|
||||
numJobsRunning--
|
||||
|
||||
case <-time.After(1 * time.Second):
|
||||
|
|
|
@ -1,7 +0,0 @@
|
|||
package main
|
||||
|
||||
import "testing"
|
||||
|
||||
func TestSock1(t *testing.T) {
|
||||
|
||||
}
|
|
@ -1,50 +1,51 @@
|
|||
package common
|
||||
package sync
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math/rand"
|
||||
"os"
|
||||
"strconv"
|
||||
|
||||
"git.csclub.uwaterloo.ca/public/merlin/config"
|
||||
)
|
||||
|
||||
func (repo *Repo) buildRsyncHost() string {
|
||||
func buildRsyncHost(repo *config.Repo) string {
|
||||
if repo.RsyncUser != "" {
|
||||
repo.RsyncHost = repo.RsyncUser + "@" + repo.RsyncHost
|
||||
}
|
||||
return "rsync://" + repo.RsyncHost + "/" + repo.RsyncDir
|
||||
}
|
||||
|
||||
func (repo *Repo) buildRsyncDaemonHost() string {
|
||||
func buildRsyncDaemonHost(repo *config.Repo) string {
|
||||
if repo.RsyncUser != "" {
|
||||
repo.RsyncHost = repo.RsyncUser + "@" + repo.RsyncHost
|
||||
}
|
||||
return repo.RsyncHost + "::" + repo.RsyncDir
|
||||
}
|
||||
|
||||
func (repo *Repo) buildRsyncSSHHost() string {
|
||||
func buildRsyncSSHHost(repo *config.Repo) string {
|
||||
if repo.RsyncUser != "" {
|
||||
repo.RsyncHost = repo.RsyncUser + "@" + repo.RsyncHost
|
||||
}
|
||||
return repo.RsyncHost + ":" + repo.RsyncDir
|
||||
}
|
||||
|
||||
func (repo *Repo) buildDownloadDir() string {
|
||||
return repo.cfg.DownloadDir + "/" + repo.LocalDir
|
||||
func buildDownloadDir(repo *config.Repo) string {
|
||||
return config.Conf.DownloadDir + "/" + repo.LocalDir
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncApache() []string {
|
||||
func cscSyncApache(repo *config.Repo) []string {
|
||||
args := []string{
|
||||
"nice", "rsync", "-az", "--no-owner", "--no-group", "--delete", "--safe-links",
|
||||
"--timeout=3600", "-4", "--address=" + repo.cfg.IPv4Address,
|
||||
"--timeout=3600", "-4", "--address=" + config.Conf.IPv4Address,
|
||||
"--exclude", ".~tmp~/",
|
||||
"--quiet", "--stats", "--log-file=" + repo.RsyncLogFile,
|
||||
}
|
||||
args = append(args, repo.buildRsyncDaemonHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncDaemonHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncArchLinux() []string {
|
||||
func cscSyncArchLinux(repo *config.Repo) []string {
|
||||
|
||||
tempDir := "" // is this option even needed?
|
||||
|
||||
|
@ -52,83 +53,83 @@ func (repo *Repo) CSCSyncArchLinux() []string {
|
|||
args := []string{
|
||||
"rsync", "-rtlH", "--safe-links", "--delete-after", "--timeout=600",
|
||||
"--contimeout=60", "-p", "--delay-updates", "--no-motd",
|
||||
"--temp-dir=" + tempDir, "--log-file=" + repo.RsyncLogFile, "--address=" + repo.cfg.IPv4Address,
|
||||
"--temp-dir=" + tempDir, "--log-file=" + repo.RsyncLogFile, "--address=" + config.Conf.IPv4Address,
|
||||
}
|
||||
args = append(args, repo.buildRsyncHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncBadPerms() []string {
|
||||
func cscSyncBadPerms(repo *config.Repo) []string {
|
||||
args := []string{
|
||||
"nice", "rsync", "-aH", "--no-owner", "--no-group", "--chmod=o=rX", "--delete",
|
||||
"--timeout=3600", "-4", "--address=" + repo.cfg.IPv4Address,
|
||||
"--timeout=3600", "-4", "--address=" + config.Conf.IPv4Address,
|
||||
"--exclude", ".~tmp~/",
|
||||
"--quiet", "--stats", "--log-file=" + repo.RsyncLogFile,
|
||||
}
|
||||
args = append(args, repo.buildRsyncDaemonHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncDaemonHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
}
|
||||
|
||||
// TODO ceph
|
||||
|
||||
func (repo *Repo) CSCSyncCDImage() []string {
|
||||
func cscSyncCDImage(repo *config.Repo) []string {
|
||||
args := []string{
|
||||
"nice", "rsync", "-aH", "--no-owner", "--no-group", "--delete",
|
||||
"--timeout=3600", "-4", "--address=" + repo.cfg.IPv4Address,
|
||||
"--timeout=3600", "-4", "--address=" + config.Conf.IPv4Address,
|
||||
"--exclude", ".*/", "--quiet", "--stats", "--log-file=" + repo.RsyncLogFile,
|
||||
}
|
||||
args = append(args, repo.buildRsyncDaemonHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncDaemonHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncChmod() []string {
|
||||
func cscSyncChmod(repo *config.Repo) []string {
|
||||
args := []string{
|
||||
"nice", "rsync", "-aH", "--no-owner", "--no-group", "--delete-after", "--delay-updates", "--safe-links",
|
||||
"--timeout=3600", "-4", "--address=" + repo.cfg.IPv4Address,
|
||||
"--timeout=3600", "-4", "--address=" + config.Conf.IPv4Address,
|
||||
"--exclude", ".~tmp~/", "--quiet", "--stats", "--log-file=" + repo.RsyncLogFile,
|
||||
"--chmod=u=rwX,go=rX",
|
||||
}
|
||||
args = append(args, repo.buildRsyncHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncDebian() []string {
|
||||
func cscSyncDebian(repo *config.Repo) []string {
|
||||
|
||||
// sync /pool
|
||||
args := []string{"nice", "rsync", "-rlHtvp",
|
||||
"--exclude", ".~tmp~/", "--timeout=3600", "-4",
|
||||
"--address=" + repo.cfg.IPv4Address,
|
||||
"--address=" + config.Conf.IPv4Address,
|
||||
}
|
||||
// $RSYNC_HOST::$RSYNC_DIR/pool/ $TO/pool/ >> $LOGFILE 2>&1
|
||||
return args
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncDebianCD() []string {
|
||||
func cscSyncDebianCD(repo *config.Repo) []string {
|
||||
|
||||
// this is basically the same as CSCSyncDebian, except it has an extra --exclude
|
||||
args := []string{"nice", "rsync", "-rlHtvp", "--delete",
|
||||
"--exclude", ".~tmp~/", "--timeout=3600", "-4",
|
||||
"--address=" + repo.cfg.IPv4Address,
|
||||
"--address=" + config.Conf.IPv4Address,
|
||||
// "--exclude", "Archive-Update-in-Progress-${HOSTNAME}"
|
||||
}
|
||||
// $RSYNC_HOST::$RSYNC_DIR $TO >> $LOGFILE 2>&1
|
||||
return args
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncGentoo() []string {
|
||||
func cscSyncGentoo(repo *config.Repo) []string {
|
||||
repo.RsyncUser = "gentoo"
|
||||
repo.PasswordFile = "gentoo-distfiles"
|
||||
return repo.CSCSyncStandard()
|
||||
return cscSyncStandard(repo)
|
||||
}
|
||||
|
||||
// TODO s3
|
||||
|
||||
func (repo *Repo) CSCSyncSSH() []string {
|
||||
func cscSyncSSH(repo *config.Repo) []string {
|
||||
|
||||
args := []string{
|
||||
"rsync", "-aH", "--no-owner", "--no-group", "--delete",
|
||||
|
@ -138,39 +139,39 @@ func (repo *Repo) CSCSyncSSH() []string {
|
|||
}
|
||||
// not sure if we should be assuming ssh identity file is the password file
|
||||
args = append(args, "-e", fmt.Sprintf("'ssh -i %s'", repo.PasswordFile))
|
||||
args = append(args, repo.buildRsyncSSHHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncSSHHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncStandard() []string {
|
||||
func cscSyncStandard(repo *config.Repo) []string {
|
||||
args := []string{
|
||||
"nice", "rsync", "-aH", "--no-owner", "--no-group", "--delete-after",
|
||||
"--delay-updates", "--safe-links", "--timeout=3600", "-4", "--address=" + repo.cfg.IPv4Address,
|
||||
"--delay-updates", "--safe-links", "--timeout=3600", "-4", "--address=" + config.Conf.IPv4Address,
|
||||
"--exclude", ".~tmp~/", "--quiet", "--stats", "--log-file=" + repo.RsyncLogFile,
|
||||
}
|
||||
if repo.PasswordFile != "" {
|
||||
filename := repo.cfg.PasswordDir + "/" + repo.PasswordFile
|
||||
filename := config.Conf.PasswordDir + "/" + repo.PasswordFile
|
||||
args = append(args, "--password-file", filename)
|
||||
}
|
||||
args = append(args, repo.buildRsyncHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
}
|
||||
|
||||
func (repo *Repo) CSCSyncStandardIPV6() []string {
|
||||
func cscSyncStandardIPV6(repo *config.Repo) []string {
|
||||
args := []string{
|
||||
"nice", "rsync", "-aH", "--no-owner", "--no-group", "--delete-after",
|
||||
"--delay-updates", "--safe-links", "--timeout=3600", "-6", "--address=" + repo.cfg.IPv4Address,
|
||||
"--delay-updates", "--safe-links", "--timeout=3600", "-6", "--address=" + config.Conf.IPv4Address,
|
||||
"--exclude", ".~tmp~/", "--quiet", "--stats", "--log-file=" + repo.RsyncLogFile,
|
||||
}
|
||||
args = append(args, repo.buildRsyncDaemonHost(), repo.buildDownloadDir())
|
||||
args = append(args, buildRsyncDaemonHost(repo), buildDownloadDir(repo))
|
||||
|
||||
return args
|
||||
}
|
||||
|
||||
// for testing, to be removed later
|
||||
func (repo *Repo) CSCSyncDummy() []string {
|
||||
func cscSyncDummy(repo *config.Repo) []string {
|
||||
|
||||
sleepDur := strconv.FormatInt(rand.Int63n(10)+5, 10)
|
||||
args := []string{"sleep", sleepDur}
|
||||
|
@ -179,7 +180,7 @@ func (repo *Repo) CSCSyncDummy() []string {
|
|||
}
|
||||
|
||||
// executes a particular sync job depending on repo.SyncType.
|
||||
func (repo *Repo) getSyncCommand() []string {
|
||||
func getSyncCommand(repo *config.Repo) []string {
|
||||
/*
|
||||
# scripts used by merlin.py
|
||||
csc-sync-debian
|
||||
|
@ -208,78 +209,38 @@ func (repo *Repo) getSyncCommand() []string {
|
|||
switch repo.SyncType {
|
||||
|
||||
case "csc-sync-apache":
|
||||
return repo.CSCSyncApache()
|
||||
return cscSyncApache(repo)
|
||||
case "csc-sync-archlinux":
|
||||
return repo.CSCSyncArchLinux()
|
||||
return cscSyncArchLinux(repo)
|
||||
case "csc-sync-badperms":
|
||||
return repo.CSCSyncBadPerms()
|
||||
return cscSyncBadPerms(repo)
|
||||
case "csc-sync-cdimage":
|
||||
return repo.CSCSyncCDImage()
|
||||
return cscSyncCDImage(repo)
|
||||
// case "csc-sync-ceph":
|
||||
// return repo.CSCSyncCeph()
|
||||
// return cscSyncCeph(repo)
|
||||
case "csc-sync-chmod":
|
||||
return repo.CSCSyncChmod()
|
||||
return cscSyncChmod(repo)
|
||||
case "csc-sync-debian":
|
||||
return repo.CSCSyncDebian()
|
||||
return cscSyncDebian(repo)
|
||||
case "csc-sync-debian-cd":
|
||||
return repo.CSCSyncDebianCD()
|
||||
return cscSyncDebianCD(repo)
|
||||
case "csc-sync-gentoo":
|
||||
return repo.CSCSyncGentoo()
|
||||
return cscSyncGentoo(repo)
|
||||
// case "csc-sync-s3":
|
||||
// return repo.CSCSyncS3()
|
||||
// return cscSyncS3(repo)
|
||||
case "csc-sync-ssh":
|
||||
return repo.CSCSyncSSH()
|
||||
return cscSyncSSH(repo)
|
||||
case "csc-sync-standard":
|
||||
return repo.CSCSyncStandard()
|
||||
return cscSyncStandard(repo)
|
||||
case "csc-sync-standard-ipv6":
|
||||
return repo.CSCSyncStandardIPV6()
|
||||
return cscSyncStandardIPV6(repo)
|
||||
// case "csc-sync-wget":
|
||||
// return repo.CSCSyncWget()
|
||||
// return cscSyncWget(repo)
|
||||
case "csc-sync-dummy":
|
||||
return repo.CSCSyncDummy()
|
||||
return cscSyncDummy(repo)
|
||||
default:
|
||||
repo.Logger.Error("Unrecognized sync type", "'"+repo.SyncType+"'")
|
||||
}
|
||||
|
||||
return []string{}
|
||||
}
|
||||
|
||||
func (repo *Repo) StartSyncJob() {
|
||||
status := FAILURE
|
||||
defer func() {
|
||||
repo.DoneChan <- Result{
|
||||
Name: repo.Name,
|
||||
Exit: status,
|
||||
}
|
||||
}()
|
||||
|
||||
localDir := repo.buildDownloadDir()
|
||||
err := os.MkdirAll(localDir, 0775)
|
||||
if err != nil {
|
||||
err = fmt.Errorf("Could not create directory %s: %w", localDir, err)
|
||||
// I'm not sure if logger can handle error so just use the string?
|
||||
repo.Logger.Error(err.Error())
|
||||
return
|
||||
}
|
||||
|
||||
args := repo.getSyncCommand()
|
||||
if repo.PasswordFile != "" {
|
||||
filename := repo.cfg.PasswordDir + "/" + repo.PasswordFile
|
||||
args = append(args, "--password-file", filename)
|
||||
}
|
||||
args = append(args, repo.buildRsyncHost(), localDir)
|
||||
|
||||
ch := SpawnProcess(repo, args)
|
||||
if ch == nil {
|
||||
// SpawnProcess will have already logged error
|
||||
return
|
||||
}
|
||||
cmd := <-ch
|
||||
switch cmd.ProcessState.ExitCode() {
|
||||
case 0:
|
||||
status = SUCCESS
|
||||
case -1:
|
||||
status = TERMINATED
|
||||
// default is already FAILURE
|
||||
}
|
||||
}
|
|
@ -0,0 +1 @@
|
|||
package sync
|
|
@ -0,0 +1,59 @@
|
|||
package sync
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"time"
|
||||
|
||||
"git.csclub.uwaterloo.ca/public/merlin/config"
|
||||
)
|
||||
|
||||
// start sync job for this repo if more than repo.Frequency seconds have elapsed since its last job
|
||||
// and is not currently running.
|
||||
// returns true iff a job is started.
|
||||
func SyncIfPossible(repo *config.Repo) bool {
|
||||
// Change to SyncIfPossible
|
||||
if repo.State.IsRunning {
|
||||
return false
|
||||
}
|
||||
|
||||
curTime := time.Now().Unix()
|
||||
if curTime-repo.State.LastAttemptStartTime > int64(repo.Frequency) {
|
||||
repo.State.IsRunning = true
|
||||
repo.State.LastAttemptStartTime = curTime
|
||||
repo.SaveState()
|
||||
repo.Logger.Info(fmt.Sprintf("Repo %s has started syncing", repo.Name))
|
||||
go startSync(repo)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// update the repo state with the last attempt time and exit now that the job is done
|
||||
func SyncCompleted(repo *config.Repo, exit int) {
|
||||
repoState := repo.State
|
||||
syncTook := time.Now().Unix() - repoState.LastAttemptStartTime
|
||||
nextSync := repo.MaxTime - int(syncTook)
|
||||
if nextSync < 0 {
|
||||
nextSync = 0
|
||||
}
|
||||
|
||||
repoState.IsRunning = false
|
||||
repoState.LastAttemptExit = exit
|
||||
repoState.LastAttemptRunTime = syncTook
|
||||
|
||||
var exitStr string
|
||||
switch exit {
|
||||
case config.SUCCESS:
|
||||
exitStr = "completed"
|
||||
case config.TERMINATED:
|
||||
exitStr = "terminated"
|
||||
default:
|
||||
exitStr = "failed"
|
||||
}
|
||||
repo.SaveState()
|
||||
repo.Logger.Info(fmt.Sprintf("Sync "+exitStr+" after running for %d seconds, will run again in %d seconds", syncTook, nextSync))
|
||||
if exit == config.SUCCESS {
|
||||
// it is possible that the zfssync from the last repo sync is still running is that fine?
|
||||
go zfsSync(repo)
|
||||
}
|
||||
}
|
|
@ -1,10 +1,13 @@
|
|||
package common
|
||||
package sync
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"os/exec"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"git.csclub.uwaterloo.ca/public/merlin/config"
|
||||
)
|
||||
|
||||
// SpawnProcess spawns a child process for the given repo. The process will
|
||||
|
@ -12,7 +15,7 @@ import (
|
|||
// runs for longer than the repo's MaxTime.
|
||||
// It returns a channel through which a Cmd will be sent once it has finished,
|
||||
// or nil if it was unable to start a process.
|
||||
func SpawnProcess(repo *Repo, args []string) (ch <-chan *exec.Cmd) {
|
||||
func spawnSyncProcess(repo *config.Repo, args []string) (ch <-chan *exec.Cmd) {
|
||||
// startTime and time took will be handled in common.go by SyncExit
|
||||
cmd := exec.Command(args[0], args[1:]...)
|
||||
|
||||
|
@ -68,3 +71,58 @@ func SpawnProcess(repo *Repo, args []string) (ch <-chan *exec.Cmd) {
|
|||
}()
|
||||
return
|
||||
}
|
||||
|
||||
func startSync(repo *config.Repo) {
|
||||
status := config.FAILURE
|
||||
defer func() {
|
||||
repo.DoneChan <- config.SyncResult{
|
||||
Name: repo.Name,
|
||||
Exit: status,
|
||||
}
|
||||
}()
|
||||
|
||||
localDir := buildDownloadDir(repo)
|
||||
err := os.MkdirAll(localDir, 0775)
|
||||
if err != nil {
|
||||
err = fmt.Errorf("Could not create directory %s: %w", localDir, err)
|
||||
// I'm not sure if logger can handle error so just use the string?
|
||||
repo.Logger.Error(err.Error())
|
||||
return
|
||||
}
|
||||
|
||||
args := getSyncCommand(repo)
|
||||
if repo.PasswordFile != "" {
|
||||
filename := config.Conf.PasswordDir + "/" + repo.PasswordFile
|
||||
args = append(args, "--password-file", filename)
|
||||
}
|
||||
args = append(args, buildRsyncHost(repo), localDir)
|
||||
|
||||
ch := spawnSyncProcess(repo, args)
|
||||
if ch == nil {
|
||||
// SpawnProcess will have already logged error
|
||||
return
|
||||
}
|
||||
cmd := <-ch
|
||||
switch cmd.ProcessState.ExitCode() {
|
||||
case 0:
|
||||
status = config.SUCCESS
|
||||
case -1:
|
||||
status = config.TERMINATED
|
||||
// default is already FAILURE
|
||||
}
|
||||
}
|
||||
|
||||
func zfsSync(repo *config.Repo) {
|
||||
out, err := exec.Command("/home/mirror/bin/zfssync", repo.Name).CombinedOutput()
|
||||
if err != nil {
|
||||
repo.Logger.Error(err)
|
||||
} else {
|
||||
f, err := os.OpenFile(repo.ZfssyncLogFile, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
|
||||
if err != nil {
|
||||
repo.Logger.Error(err.Error())
|
||||
} else {
|
||||
f.Write(out)
|
||||
}
|
||||
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue