Use optional catch bindings

Author: RyanZim

lib/copy/__tests__/copy-permissions.test.js

@@ -32,13 +32,13 @@ describe('copy', () => {
 
     try {
       gidWheel = process.getgid() // userid.gid('wheel')
-    } catch (err) {
+    } catch {
       gidWheel = process.getgid()
     }
 
     try {
       gidStaff = process.getgid() // userid.gid('staff')
-    } catch (err) {
+    } catch {
       gidStaff = process.getgid()
     }
 

lib/empty/index.js

@@ -30,7 +30,7 @@ function emptyDirSync (dir) {
   let items
   try {
     items = fs.readdirSync(dir)
-  } catch (err) {
+  } catch {
     return mkdir.mkdirsSync(dir)
   }
 

lib/ensure/file.js

@@ -44,7 +44,7 @@ function createFileSync (file) {
   let stats
   try {
     stats = fs.statSync(file)
-  } catch (e) {}
+  } catch {}
   if (stats && stats.isFile()) return
 
   const dir = path.dirname(file)

lib/ensure/symlink-type.js

@@ -19,7 +19,7 @@ function symlinkTypeSync (srcpath, type) {
   if (type) return type
   try {
     stats = fs.lstatSync(srcpath)
-  } catch (e) {
+  } catch {
     return 'file'
   }
   return (stats && stats.isDirectory()) ? 'dir' : 'file'

lib/mkdirs/__tests__/issue-209.test.js

@@ -30,8 +30,7 @@ describe('mkdirp: issue-209, win32, when bad path, should return a cleaner error
       try {
         const file = 'c:\\tmp\foo:moo'
         fse.mkdirpSync(file)
-      } catch (err) {
-        // console.error(err)
+      } catch {
         didErr = true
       }
       assert(didErr)

lib/mkdirs/mkdirs-sync.js

@@ -28,9 +28,9 @@ function mkdirsSync (p, opts, made) {
   try {
     xfs.mkdirSync(p, mode)
     made = made || p
-  } catch (err0) {
-    if (err0.code === 'ENOENT') {
-      if (path.dirname(p) === p) throw err0
+  } catch (err) {
+    if (err.code === 'ENOENT') {
+      if (path.dirname(p) === p) throw err
       made = mkdirsSync(path.dirname(p), opts, made)
       mkdirsSync(p, opts, made)
     } else {
@@ -39,10 +39,10 @@ function mkdirsSync (p, opts, made) {
       let stat
       try {
         stat = xfs.statSync(p)
-      } catch (err1) {
-        throw err0
+      } catch {
+        throw err
       }
-      if (!stat.isDirectory()) throw err0
+      if (!stat.isDirectory()) throw err
     }
   }
 

lib/move-sync/__tests__/move-sync.test.js

@@ -281,7 +281,7 @@ describe('moveSync()', () => {
     // make sure we have permission on device
     try {
       fs.writeFileSync(path.join(differentDevice, 'file'), 'hi')
-    } catch (err) {
+    } catch {
       console.log("Can't write to device. Skipping moveSync test.")
       __skipTests = true
     }

lib/move/__tests__/move.test.js

@@ -324,7 +324,7 @@ describe('+ move()', () => {
     // make sure we have permission on device
     try {
       fs.writeFileSync(path.join(differentDevice, 'file'), 'hi')
-    } catch (err) {
+    } catch {
       console.log("Can't write to device. Skipping move test.")
       __skipTests = true
     }

lib/remove/rimraf.js

@@ -302,7 +302,7 @@ function rmkidsSync (p, options) {
       try {
         const ret = options.rmdirSync(p, options)
         return ret
-      } catch (er) { }
+      } catch {}
     } while (Date.now() - startTime < 500) // give up after 500ms
   } else {
     const ret = options.rmdirSync(p, options)

lib/util/buffer.js

@@ -4,7 +4,7 @@ module.exports = function (size) {
   if (typeof Buffer.allocUnsafe === 'function') {
     try {
       return Buffer.allocUnsafe(size)
-    } catch (e) {
+    } catch {
       return new Buffer(size)
     }
   }