feat: don't include from arrays in tree

as the backend doesn't need these anymore,
and it reduces the result json size by factor of ~3x

Author: michael-go

lib/index.js

@@ -75,7 +75,6 @@ function convertDependecies(targetImage, scanResults) {
   root = {};
   root.name = imageName;
   root.version = imageVersion;
-  root.from = [imageName + '@' + imageVersion];
 
   var scanResult = scanResults.filter(function (res) {
     return res.Analysis && res.Analysis.length > 0;
@@ -103,10 +102,6 @@ function convertDependecies(targetImage, scanResults) {
       name: name,
       version: version,
       dependencies: {},
-      from: [
-        root['from'][0],
-        name + '@' + version,
-      ],
     }
     return acc;
   }, {});

test/system.test.js

@@ -81,7 +81,6 @@ test('inspect nginx:1.13.10', function (t) {
         name: imgName,
         version: imgTag,
         packageFormatVersion: 'deb:0.0.1',
-        from: [imgName + '@' + imgTag],
       }, 'root pkg');
 
       const deps = pkg.dependencies;
@@ -91,34 +90,18 @@ test('inspect nginx:1.13.10', function (t) {
         acl: {
           name: 'acl',
           version: '2.2.52-3+b1',
-          from: [
-            'nginx@1.13.10',
-            'acl@2.2.52-3+b1',
-          ],
         },
         adduser: {
           name: 'adduser',
           version: '3.115',
-          from: [
-            'nginx@1.13.10',
-            'adduser@3.115',
-          ],
         },
         'nginx-module-xslt': {
           name: 'nginx-module-xslt',
           version: '1.13.10-1~stretch',
-          from: [
-            'nginx@1.13.10',
-            'nginx-module-xslt@1.13.10-1~stretch',
-          ],
         },
         openssl: {
           name: 'openssl',
           version: '1.1.0f-3+deb9u1',
-          from: [
-            'nginx@1.13.10',
-            'openssl@1.1.0f-3+deb9u1',
-          ],
         },
       }, 'deps');
     });
@@ -142,7 +125,6 @@ test('inspect redis:3.2.11-alpine', function (t) {
         name: imgName,
         version: imgTag,
         packageFormatVersion: 'apk:0.0.1',
-        from: [imgName + '@' + imgTag],
       }, 'root pkg');
 
       const deps = pkg.dependencies;
@@ -152,10 +134,6 @@ test('inspect redis:3.2.11-alpine', function (t) {
         busybox: {
           name: 'busybox',
           version: '1.27.2-r7',
-          from: [
-            imgName + '@' + imgTag,
-            'busybox@1.27.2-r7',
-          ],
         },
         'libressl2.6-libcrypto': {
           name: 'libressl2.6-libcrypto',
@@ -188,7 +166,6 @@ test('inspect centos', function (t) {
         name: imgName,
         version: imgTag,
         packageFormatVersion: 'rpm:0.0.1',
-        from: [imgName + '@' + imgTag],
       }, 'root pkg');
 
       const deps = pkg.dependencies;
@@ -198,10 +175,6 @@ test('inspect centos', function (t) {
         'openssl-libs': {
           name: 'openssl-libs',
           version: '1:1.0.2k-8.el7',
-          from: [
-            imgName + '@' + imgTag,
-            'openssl-libs@1:1.0.2k-8.el7',
-          ],
         },
         passwd: {
           name: 'passwd',