Exemple #1
0
func prePushCheckForMissingObjects(pointers []*lfs.WrappedPointer) (objectsOnServer map[string]struct{}) {
	var missingLocalObjects []*lfs.WrappedPointer
	var missingSize int64
	var skipObjects = make(map[string]struct{}, len(pointers))
	for _, pointer := range pointers {
		if !lfs.ObjectExistsOfSize(pointer.Oid, pointer.Size) {
			// We think we need to push this but we don't have it
			// Store for server checking later
			missingLocalObjects = append(missingLocalObjects, pointer)
			missingSize += pointer.Size
		}
	}
	if len(missingLocalObjects) == 0 {
		return nil
	}

	checkQueue := lfs.NewDownloadCheckQueue(len(missingLocalObjects), missingSize, false)
	for _, p := range missingLocalObjects {
		checkQueue.Add(lfs.NewDownloadCheckable(p))
	}
	// this channel is filled with oids for which Check() succeeded & Transfer() was called
	transferc := checkQueue.Watch()
	go func() {
		for oid := range transferc {
			skipObjects[oid] = struct{}{}
		}
	}()
	checkQueue.Wait()
	return skipObjects
}
func prePushCheckForMissingObjects(pointers []*lfs.WrappedPointer) (objectsOnServer lfs.StringSet) {
	var missingLocalObjects []*lfs.WrappedPointer
	var missingSize int64
	var skipObjects = lfs.NewStringSetWithCapacity(len(pointers))
	for _, pointer := range pointers {
		if !lfs.ObjectExistsOfSize(pointer.Oid, pointer.Size) {
			// We think we need to push this but we don't have it
			// Store for server checking later
			missingLocalObjects = append(missingLocalObjects, pointer)
			missingSize += pointer.Size
		}
	}
	if len(missingLocalObjects) == 0 {
		return nil
	}

	checkQueue := lfs.NewDownloadCheckQueue(len(missingLocalObjects), missingSize, true)
	for _, p := range missingLocalObjects {
		checkQueue.Add(lfs.NewDownloadCheckable(p))
	}
	// this channel is filled with oids for which Check() succeeded & Transfer() was called
	transferc := checkQueue.Watch()
	done := make(chan int)
	go func() {
		for oid := range transferc {
			skipObjects.Add(oid)
		}
		done <- 1
	}()
	// Currently this is needed to flush the batch but is not enough to sync transferc completely
	checkQueue.Wait()
	<-done
	return skipObjects
}
Exemple #3
0
func prune(verifyRemote, dryRun, verbose bool) {
	localObjects := make([]localstorage.Object, 0, 100)
	retainedObjects := lfs.NewStringSetWithCapacity(100)
	var reachableObjects lfs.StringSet
	var taskwait sync.WaitGroup

	// Add all the base funcs to the waitgroup before starting them, in case
	// one completes really fast & hits 0 unexpectedly
	// each main process can Add() to the wg itself if it subdivides the task
	taskwait.Add(4) // 1..4: localObjects, current & recent refs, unpushed, worktree
	if verifyRemote {
		taskwait.Add(1) // 5
	}

	progressChan := make(PruneProgressChan, 100)

	// Collect errors
	errorChan := make(chan error, 10)
	var errorwait sync.WaitGroup
	errorwait.Add(1)
	var taskErrors []error
	go pruneTaskCollectErrors(&taskErrors, errorChan, &errorwait)

	// Populate the single list of local objects
	go pruneTaskGetLocalObjects(&localObjects, progressChan, &taskwait)

	// Now find files to be retained from many sources
	retainChan := make(chan string, 100)

	go pruneTaskGetRetainedCurrentAndRecentRefs(retainChan, errorChan, &taskwait)
	go pruneTaskGetRetainedUnpushed(retainChan, errorChan, &taskwait)
	go pruneTaskGetRetainedWorktree(retainChan, errorChan, &taskwait)
	if verifyRemote {
		reachableObjects = lfs.NewStringSetWithCapacity(100)
		go pruneTaskGetReachableObjects(&reachableObjects, errorChan, &taskwait)
	}

	// Now collect all the retained objects, on separate wait
	var retainwait sync.WaitGroup
	retainwait.Add(1)
	go pruneTaskCollectRetained(&retainedObjects, retainChan, progressChan, &retainwait)

	// Report progress
	var progresswait sync.WaitGroup
	progresswait.Add(1)
	go pruneTaskDisplayProgress(progressChan, &progresswait)

	taskwait.Wait()   // wait for subtasks
	close(retainChan) // triggers retain collector to end now all tasks have
	retainwait.Wait() // make sure all retained objects added

	close(errorChan) // triggers error collector to end now all tasks have
	errorwait.Wait() // make sure all errors have been processed
	pruneCheckErrors(taskErrors)

	prunableObjects := make([]string, 0, len(localObjects)/2)

	// Build list of prunables (also queue for verify at same time if applicable)
	var verifyQueue *lfs.TransferQueue
	var verifiedObjects lfs.StringSet
	var totalSize int64
	var verboseOutput bytes.Buffer
	if verifyRemote {
		lfs.Config.CurrentRemote = lfs.Config.FetchPruneConfig().PruneRemoteName
		// build queue now, no estimates or progress output
		verifyQueue = lfs.NewDownloadCheckQueue(0, 0, true)
		verifiedObjects = lfs.NewStringSetWithCapacity(len(localObjects) / 2)
	}
	for _, file := range localObjects {
		if !retainedObjects.Contains(file.Oid) {
			prunableObjects = append(prunableObjects, file.Oid)
			totalSize += file.Size
			if verbose {
				// Save up verbose output for the end, spinner still going
				verboseOutput.WriteString(fmt.Sprintf(" * %v (%v)\n", file.Oid, humanizeBytes(file.Size)))
			}
			if verifyRemote {
				tracerx.Printf("VERIFYING: %v", file.Oid)
				pointer := lfs.NewPointer(file.Oid, file.Size, nil)
				verifyQueue.Add(lfs.NewDownloadCheckable(&lfs.WrappedPointer{Pointer: pointer}))
			}
		}
	}

	if verifyRemote {
		// this channel is filled with oids for which Check() succeeded & Transfer() was called
		verifyc := verifyQueue.Watch()
		var verifywait sync.WaitGroup
		verifywait.Add(1)
		go func() {
			for oid := range verifyc {
				verifiedObjects.Add(oid)
				tracerx.Printf("VERIFIED: %v", oid)
				progressChan <- PruneProgress{PruneProgressTypeVerify, 1}
			}
			verifywait.Done()
		}()
		verifyQueue.Wait()
		verifywait.Wait()
		close(progressChan) // after verify (uses spinner) but before check
		progresswait.Wait()
		pruneCheckVerified(prunableObjects, reachableObjects, verifiedObjects)
	} else {
		close(progressChan)
		progresswait.Wait()
	}

	if len(prunableObjects) == 0 {
		Print("Nothing to prune")
		return
	}
	if dryRun {
		Print("%d files would be pruned (%v)", len(prunableObjects), humanizeBytes(totalSize))
		if verbose {
			Print(verboseOutput.String())
		}
	} else {
		Print("Pruning %d files, (%v)", len(prunableObjects), humanizeBytes(totalSize))
		if verbose {
			Print(verboseOutput.String())
		}
		pruneDeleteFiles(prunableObjects)
	}

}