build: modernize with "go fix -minmax": use min and max builtins

backend/huaweidrive/huaweidrive.go

@@ -1897,10 +1897,8 @@ func (o *Object) uploadResume(ctx context.Context, in io.Reader, leaf, directory
 	}
 
 	// Now upload the content in chunks
-	chunkSize := int64(o.fs.opt.ChunkSize)
-	if chunkSize < 256*1024 {
-		chunkSize = 256 * 1024 // Minimum chunk size according to Huawei Drive API
-	}
+	// Note 256k is the minimum chunk size according to Huawei Drive API
+	chunkSize := max(int64(o.fs.opt.ChunkSize), 256*1024)
 	if chunkSize > 64*1024*1024 {
 		chunkSize = 64 * 1024 * 1024 // Maximum single upload size
 	}

backend/iclouddrive/icloudphotos.go

@@ -736,10 +736,7 @@ func (f *PhotosFs) ListR(ctx context.Context, dir string, callback fs.ListRCallb
 	}
 	close(jobCh)
 
-	workers := fs.GetConfig(ctx).Checkers
-	if len(jobs) < workers {
-		workers = len(jobs)
-	}
+	workers := min(len(jobs), fs.GetConfig(ctx).Checkers)
 	errs := make(chan error, workers)
 
 	for range workers {

fs/open_options.go

@@ -125,13 +125,10 @@ func (o *RangeOption) Decode(size int64) (offset, limit int64) {
 		}
 	} else {
 		if o.End >= 0 {
-			offset = size - o.End
-			if offset < 0 {
-				// RFC 7233 section 2.1: if the suffix-length is
-				// larger than the representation, use the entire
-				// representation.
-				offset = 0
-			}
+			// RFC 7233 section 2.1: if the suffix-length is
+			// larger than the representation, use the entire
+			// representation.
+			offset = max(size-o.End, 0)
 		} else {
 			offset = 0
 		}
@@ -168,13 +165,10 @@ func FixRangeOption(options []OpenOption, size int64) {
 		case *RangeOption:
 			// If start is < 0 then fetch from the end
 			if x.Start < 0 {
-				start := size - x.End
-				if start < 0 {
-					// RFC 7233 section 2.1: if the suffix-length is
-					// larger than the representation, use the entire
-					// representation (#6310).
-					start = 0
-				}
+				// RFC 7233 section 2.1: if the suffix-length is
+				// larger than the representation, use the entire
+				// representation (#6310).
+				start := max(size-x.End, 0)
 				x = &RangeOption{Start: start, End: -1}
 				options[i] = x
 			}

lib/rest/headers.go

@@ -126,10 +126,7 @@ func CheckContentRange(resp *http.Response, options []fs.OpenOption, size int64)
 			expectedEnd = rangeSize - 1
 		}
 	} else if rangeSize >= 0 {
-		expectedStart = rangeSize - requested.End
-		if expectedStart < 0 {
-			expectedStart = 0
-		}
+		expectedStart = max(rangeSize-requested.End, 0)
 		expectedEnd = rangeSize - 1
 	}