[bugfix] Fix remote media pruning failing if media already gone (#548)

* fix error check of prune to allow missing files

* update go-store library, add test for pruning item with db entry but no file

Signed-off-by: kim <grufwub@gmail.com>

* remove now-unneccessary error check

Signed-off-by: kim <grufwub@gmail.com>

Co-authored-by: kim <grufwub@gmail.com>

vendor/codeberg.org/gruf/go-runners/pool.go

@@ -2,6 +2,7 @@ package runners
 
 import (
 	"context"
+	"runtime"
 	"sync"
 )
 
@@ -22,6 +23,12 @@ type WorkerPool struct {
 // The number of workers represents how many WorkerFuncs can be executed simultaneously, and the
 // queue size represents the max number of WorkerFuncs that can be queued at any one time.
 func NewWorkerPool(workers int, queue int) WorkerPool {
+	if workers < 1 {
+		workers = runtime.GOMAXPROCS(0)
+	}
+	if queue < 1 {
+		queue = workers * 2
+	}
 	return WorkerPool{
 		queue: make(chan WorkerFunc, queue),
 		free:  make(chan struct{}, workers),
@@ -59,22 +66,28 @@ func (pool *WorkerPool) Running() bool {
 
 // execute will take a queued function and pass it to a free worker when available.
 func (pool *WorkerPool) execute(ctx context.Context, fn WorkerFunc) {
+	var acquired bool
+
 	// Set as running
 	pool.wait.Add(1)
 
 	select {
 	// Pool context cancelled
+	// (we fall through and let
+	// the function execute).
 	case <-ctx.Done():
-		pool.wait.Done()
 
-	// Free worker acquired
+	// Free worker acquired.
 	case pool.free <- struct{}{}:
+		acquired = true
 	}
 
 	go func() {
 		defer func() {
 			// defer in case panic
-			<-pool.free
+			if acquired {
+				<-pool.free
+			}
 			pool.wait.Done()
 		}()
 
@@ -110,8 +123,8 @@ func (pool *WorkerPool) process(ctx context.Context) {
 }
 
 // Enqueue will add provided WorkerFunc to the queue to be performed when there is a free worker.
-// Note that 'fn' will ALWAYS be executed, and the supplied context will specify whether this 'fn'
-// is being executed during normal pool execution, or if the pool has been stopped with <-ctx.Done().
+// This will block until the function has been queued. 'fn' will ALWAYS be executed, even on pool
+// close, which can be determined via context <-ctx.Done(). WorkerFuncs MUST respect the passed context.
 func (pool *WorkerPool) Enqueue(fn WorkerFunc) {
 	// Check valid fn
 	if fn == nil {
@@ -121,13 +134,14 @@ func (pool *WorkerPool) Enqueue(fn WorkerFunc) {
 	select {
 	// Pool context cancelled
 	case <-pool.svc.Done():
+		fn(closedctx)
 
 	// Placed fn in queue
 	case pool.queue <- fn:
 	}
 }
 
-// EnqueueNoBlock performs Enqueue but returns false if queue size is at max. Else, true.
+// EnqueueNoBlock attempts Enqueue but returns false if not executed.
 func (pool *WorkerPool) EnqueueNoBlock(fn WorkerFunc) bool {
 	// Check valid fn
 	if fn == nil {