furkot-driving-log - npm Package Compare versions

Comparing version 2.0.0 to 2.0.1

History.md

 
+2.0.1 / 2017-09-02
+==================
+
+ * implement generator as a Readable stream
+
 2.0.0 / 2017-07-18
@@ -3,0 +8,0 @@ ==================

lib/driving-log.js

@@ -0,1 +1,2 @@
+var Readable = require('stream').Readable;
 var format = require('./format');
@@ -12,8 +13,8 @@
 
-function write(out, line) {
-  line = line.map(function(item) {
-    if(typeof item === 'number') {
+function prepare(line) {
+  return line.map(function(item) {
+    if (typeof item === 'number') {
       return '' + item;
     }
-    if(typeof item === 'string') {
+    if (typeof item === 'string') {
       // quote strings
@@ -24,4 +25,3 @@ return '"' + item.replace(/"/g, '""') + '"';
     return '';
-  }).join(',');
-  out.write(line + '\n');
+  }).join(',') + '\n';
 }
@@ -58,6 +58,12 @@
 
-  write(out, header);
+  var steps = options.routes[0].points;
 
-  options.routes[0].points.forEach(function (step, i, steps) {
-    var line = [], next = steps[i + 1], travel;
+  function getLine(i) {
+    if (i < 0) {
+      return prepare(header);
+    }
+
+    var step = steps[i];
+    var next = steps[i + 1];
+
     if (!next) {
@@ -72,2 +78,3 @@ return;
 
+    var travel;
     if (mode === next.mode || next.mode === undefined) {
@@ -79,5 +86,8 @@ travel = next;
     }
+
     totals.driving += travel.driving;
     totals.distance += travel.distance;
 
+    var line = [];
+
     line.push(step.name);
@@ -97,5 +107,23 @@ line.push(step.address);
 
-    write(out, line);
+    return prepare(line);
+  }
+
+
+  var maxLine = steps.length - 1;
+  var currentLine = -1;
+
+  var stream = new Readable({
+    read: function read() {
+      while (currentLine < maxLine) {
+        if (!this.push(getLine(currentLine++))) {
+          break;
+        }
+      }
+      if (currentLine >= maxLine) {
+        this.push(null);
+      }
+    }
   });
-  out.end();
+
+  stream.pipe(out);
 }

package.json

 {
   "name": "furkot-driving-log",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "Generate CSV driving log from Furkot trip data.",
@@ -5,0 +5,0 @@ "homepage": "https://trips.furkot.com",

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Improved metrics

Total package byte prevSize

5710

increased by9.96%

Lines of code

146

increased by15.87%

No dependency changes