//dorefresh actually run the refresh command, it is unsafe to call it without caution. It should only update errcode, and result
func (j *job) dorefresh(w io.Writer) error {
// NB: this is a mammoth function. I know it, but I wasn't able to
// split it down before having done everything.
//
// Step by step I will extract subffunctions to appropriate set of objects
//
wd, err := os.Getwd()
if err != nil {
return err
}
_, err = os.Stat(j.name)
if os.IsNotExist(err) { // target does not exist, make it.
fmt.Fprintf(w, "%s dir does not exists. Will create one.\n", j.name)
result, err := git.Clone(wd, j.name, j.remote, j.branch)
fmt.Fprintln(w, result)
if err != nil {
return err
}
}
wk := sbr.NewWorkspace(filepath.Join(wd, j.name))
ch := sbr.NewCheckouter(wk, w)
ch.SetFastForwardOnly(true)
ch.SetPrune(true)
digest, err := ch.Checkout()
if err != nil {
return err
}
copy(j.refresh.version[:], digest)
return nil
}
func (c *CloneCmd) Run(args []string) {
// use wd by default
wd, err := os.Getwd()
if err != nil {
fmt.Printf("Error, cannot determine the current directory. %s\n", err.Error())
os.Exit(CodeNoWorkingDir)
}
var rel, remote string
switch len(args) {
case 0:
fmt.Printf("Usage sbr clone [-b branch] <remote> [target]\n")
os.Exit(-1)
case 1:
remote = args[0]
rel = strings.TrimSuffix(filepath.Base(remote), ".git")
case 2:
remote = args[0]
rel = args[1]
}
res, err := git.Clone(wd, rel, remote, *c.branch)
fmt.Println(res)
if err != nil {
fmt.Printf("Error, cannot clone %s: %s\n", remote, err.Error())
os.Exit(-1)
}
//creates a workspace to be able to read from/to sets
workspace := sbr.NewWorkspace(filepath.Join(wd, rel))
ch := sbr.NewCheckouter(workspace, os.Stdout)
_, err = ch.Checkout()
if err != nil {
fmt.Printf("checkout error: %s", err.Error())
os.Exit(-1)
}
}
//applychanges computes ins, del, upd , and try to apply them on the workspace
func (ch *Checkouter) patchDisk() (cloned map[string]bool, err error) {
wds, err := ch.wk.Scan()
if err != nil {
return
}
sbrs, err := ch.wk.Read()
if err != nil {
return
}
ins, del, upd := Diff(wds, sbrs)
// map to keep track of cloned repo (that don't need refresh)
cloned = make(map[string]bool)
var refresherrors []error // we keep track of all errors, but we still go on.
var waiter sync.WaitGroup // to wait for all commands to return
var delCount, cloneCount, changeCount int
if len(ins) > 0 || len(del) > 0 || len(upd) > 0 {
for _, sbr := range ins {
waiter.Add(1)
go func(d Sub) {
defer waiter.Done()
res, err := git.Clone(ch.wk.Wd(), d.Rel(), d.Remote(), d.Branch())
if err != nil {
fmt.Fprintf(ch.w, "ERR Cloning into '%s' : %q\n%s\n", d.Rel(), err.Error(), res)
refresherrors = append(refresherrors, err)
} else {
cloneCount++
fmt.Fprintf(ch.w, " Cloning into '%s'...\n", d.Rel())
}
}(sbr)
}
for _, delta := range upd {
u, err := ch.UpdateRepository(delta)
if err != nil {
fmt.Fprintf(ch.w, "ERR Changing '%s' : %s\n%s\n", delta.Rel(), err.Error(), delta.String())
refresherrors = append(refresherrors, err)
} else {
if u {
fmt.Fprintf(ch.w, " Changing %s\n", delta.String())
changeCount++
}
}
}
if ch.prune {
for _, sbr := range del {
waiter.Add(1)
go func(d Sub) {
defer waiter.Done()
err = ch.Prune(sbr)
if err != nil {
fmt.Fprintf(ch.w, "ERR Pruning '%s' : %q\n", d.Rel(), err.Error())
refresherrors = append(refresherrors, err)
} else {
delCount++
fmt.Fprintf(ch.w, " Pruning '%s'...\n", d.Rel())
}
}(sbr)
}
} // no prune at all
waiter.Wait()
//print out some report
if ch.prune {
fmt.Fprintf(ch.w, "%v CLONE, %v PRUNE %v CHANGED\n\n", cloneCount, delCount, changeCount)
} else {
//fake prune with a specific message
for _, sbr := range del {
fmt.Fprintf(ch.w, " Would Prune %s %s %s\n", sbr.Rel(), sbr.Remote(), sbr.Branch())
delCount++
}
fmt.Fprintf(ch.w, "%v CLONE, %v REQUIRED PRUNE %v CHANGED\n\n", cloneCount, delCount, changeCount)
}
}
if len(refresherrors) > 0 {
// todo print those errors if there are not too many
err = fmt.Errorf("Errors occured (%v) during operations", len(refresherrors))
}
return
}
