[Pkg-javascript-commits] [node-deps-sort] 18/79: expose implementation

[Bastien Roucariès]

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rouca pushed a commit to branch master
in repository node-deps-sort.

commit e70feeaa8152753520c1a06e77e73821c041c283
Author: James Halliday <mail at substack.net>
Date:   Mon Jul 21 05:04:31 2014 -0700

    expose implementation
---
 index.js     | 19 +++++++++++++++++--
 package.json |  1 +
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index 28e4028..a0a38c5 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,15 @@
 var through = require('through2');
+var isarray = require('isarray');
 
 module.exports = function (opts) {
     if (!opts) opts = {};
+    var expose = opts.expose || {};
+    if (isarray(expose)) {
+        expose = expose.reduce(function (acc, key) {
+            acc[key] = true;
+            return acc;
+        }, {});
+    }
     
     var rows = [];
     return through.obj(write, end);
@@ -14,9 +22,16 @@ module.exports = function (opts) {
         
         if (opts.index) {
             var index = {};
+            var offset = 0;
             rows.forEach(function (row, ix) {
-                row.index = ix + 1;
-                index[row.id] = ix + 1;
+                if (expose[row.id]) {
+                    row.index = row.id;
+                    offset ++;
+                }
+                else {
+                    row.index = ix + 1 - offset;
+                }
+                index[row.id] = row.index;
             });
             rows.forEach(function (row) {
                 row.indexDeps = {};
diff --git a/package.json b/package.json
index c5d55d5..7d0bfb3 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
   },
   "dependencies": {
     "JSONStream": "~0.8.4",
+    "isarray": "0.0.1",
     "minimist": "~0.2.0",
     "through2": "~0.5.1"
   },

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