// Calculates checksums of item in files chan, then puts file stats & xsum
// of changed files out on the changed chan.
// Does not look at file stats to determine change. This is purely about xsums.
func verifyHandler(root string, files, changed chan veb.IndexEntry, done chan int, log *veb.Log) {
for f := range files {
// save off old xsum for comparison
oldXsum := f.Xsum
// get file size & such
err := veb.SetStats(root, &f)
if err != nil {
log.Err().Println("couldn't get stats:", err)
}
// calculate checksum hash
err = veb.Xsum(&f, log)
if err != nil {
log.Err().Println("checksum for verify failed:", err)
}
// see if it changed...
if !bytes.Equal(f.Xsum, oldXsum) {
changed <- f
}
}
done <- 1
}
// Saves all updated/new files to index, so they are available for push/pull.
// Saves new file stats & current checksum of the file shown as new/changed.
func Commit(index *veb.Index, log *veb.Log) error {
defer log.Un(log.Trace(COMMIT))
var timer veb.Timer
timer.Start()
// check for changes
files := make(chan veb.IndexEntry, CHAN_SIZE)
go index.Check(files)
// start handler pool working on files
updates := make(chan veb.IndexEntry, CHAN_SIZE)
done := make(chan int, MAX_HANDLERS)
for i := 0; i < MAX_HANDLERS; i++ {
go func() {
for f := range files {
// calculate checksum hash
err := veb.Xsum(&f, log)
if err != nil {
log.Err().Println("checksum for verify failed:", err)
}
updates <- f
}
done <- 1
}()
}
// done listener
go func() {
for i := 0; i < MAX_HANDLERS; i++ {
<-done
}
close(updates)
}()
// update index
var retVal error = nil
numCommits := 0
numErrors := 0
first := true
for f := range updates {
err := index.Update(&f)
if err != nil {
log.Err().Println("index update failed:", err)
fmt.Println("Error: Couldn't commit", f.Path, ":", err)
retVal = fmt.Errorf("veb commit failed")
numErrors++
} else {
if first {
fmt.Println("----------------")
fmt.Println("Committed files:")
fmt.Println("----------------")
first = false
}
fmt.Println(INDENT_F, f.Path)
numCommits++
}
}
// save index once everything's done
index.Save()
// info
timer.Stop()
fmt.Println("\nsummary:", numCommits, "commits,", numErrors,
"errors in", timer.Duration())
log.Info().Printf("%s (%d commits, %d errors) took %v\n",
COMMIT, numCommits, numErrors, timer.Duration())
return retVal
}