fix: fix offset & limit default value setter of hash generator

Author: boxsnake

util/compare.js

@@ -11,7 +11,7 @@ function getFileSummary (base = '', paths = [], queue = null) {
   _.each(paths, async path => {
     await queue.add(() => {
       const filename = UtilPath.relative(base, path)
-      const md5 = UtilHash.getHash(path, { offset: 0, limit: 30 * 1024 * 1024 })
+      const md5 = UtilHash.getHash(path, { offset: 0, limit: 100 * 1024 })
 
       const pack = {
         path,

util/hash.js

@@ -1,14 +1,17 @@
+import _ from 'lodash'
 import MD5 from 'md5'
 import FsExtra from 'fs-extra'
 
 function getHash (path = '', opts = {}) {
-  const offset = +opts.offset || 50
-  const limit = +opts.limit || 102400
+  const offset = +opts.offset
+  const offsetVal = _.isFinite(offset) ? offset : 0
+  const limit = +opts.limit
+  const limitVal = _.isFinite(limit) ? limit : 102400
   const fd = FsExtra.openSync(path, 'r')
   const fstat = FsExtra.fstatSync(fd)
-  const bufSize = fstat.size - offset > limit ? limit : fstat.size - offset
+  const bufSize = fstat.size - offsetVal > limitVal ? limitVal : fstat.size - offsetVal
   const buf = Buffer.alloc(bufSize)
-  FsExtra.readSync(fd, buf, 0, bufSize, offset)
+  FsExtra.readSync(fd, buf, 0, bufSize, offsetVal)
   FsExtra.closeSync(fd)
   const md5 = MD5(buf)