Fallback to 1 or 5 chunks as necessary if chunks are larger than the …

…size
miraclx · Jul 4, 2020 · 8b598cd · 8b598cd
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diff --git a/README.md b/README.md
@@ -100,7 +100,7 @@ The purpose of the hasher is to check the integrity of the merged chunks while w
 
 ### <a id='xgetoptions'></a> XGETOptions <sub>`extends`</sub> [AxiosOpts][]: [`Object`][object]
 
-- `chunks`: &lt;[number][]&gt; Number of chunked-simultaneous downloads. **Default**: `5`
+- `chunks`: &lt;[number][]&gt; Maximum number of non-overlapping chunk connections. **Default**: `5`
 - `retries`: &lt;[number][]&gt; Number of retries for each chunk. **Default**: `5`
 - `timeout`: &lt;[number][]&gt; Network response timeout (ms). **Default**: `20000`
 - `start`: &lt;[number][]&gt; Position to start feeding the stream from. **Default**: `0`

diff --git a/lib/index.js b/lib/index.js
@@ -111,6 +111,7 @@ async function xHeadData(store, opts) {
   });
   store.start = !acceptsRanges ? 0 : typeof offset === 'number' ? offset : store.start;
   if (!Number.isFinite(store.size)) store.size = store.totalSize - store.start;
+  if (store.size < store.chunks) store.chunks = store.size < 5 ? 1 : 5;
   const spec = parseSplitSpec(store.size, store.chunks);
   store.chunkStack = buildChunks(
     store.url,