GitHub user nikhilkh opened a pull request:
https://github.com/apache/cordova-lib/pull/434
CB-11194 Improve cordova load time
I instrumented module load and this change improves our load time by ~50%
(300+ ms) for `cordova build android` on a hello world project. Biggest gains
are from delay loading only when required:
- browserify
- unorm
- unpack
```diff
--- a/Users/nikhil/Developer/cordova/require.log
+++ b/Users/nikhil/Developer/cordova/require-after.log
@@ -1,116 +1,64 @@
> Module load underscore: 4
->>> Module load graceful-fs: 3
->>> Module load osenv: 3
->>> Module load write-file-atomic: 4
->> Module load configstore: 17
->>>> Module load color-convert: 4
+>> Module load child_process: 3
+>>> Module load graceful-fs: 6
+>>> Module load osenv: 4
+>>>>> Module load crypto: 4
+>>>> Module load ./rng: 5
+>>> Module load uuid: 6
+>>> Module load write-file-atomic: 3
+>> Module load configstore: 24
+>>>> Module load color-convert: 5
>>> Module load ansi-styles: 6
->> Module load chalk: 11
->> Module load semver-diff: 3
-> Module load update-notifier: 36
->> Module load ../hooks/HooksRunner: 3
-> Module load ./build: 3
->>> Module load unorm: 24
->> Module load ../platforms/PlatformApiPoly: 30
->>>>>>>>>>>> Module load graceful-fs: 12
->>>>>>>>>>> Module load ./lib/reader.js: 13
->>>>>>>>>>>>>> Module load minimatch: 3
->>>>>>>>>>>>>> Module load inflight: 3
->>>>>>>>>>>>> Module load glob: 9
->>>>>>>>>>>> Module load rimraf: 10
->>>>>>>>>>> Module load ./lib/writer.js: 15
->>>>>>>>>> Module load fstream: 33
->>>>>>>>> Module load ./entry.js: 35
->>>>>>>> Module load ./entry-writer.js: 37
->>>>>>> Module load ./lib/pack.js: 39
->>>>>> Module load tar: 44
->>>>> Module load ../../util/unpack: 46
->>>> Module load ../plugman/registry/registry: 49
->>> Module load ./plugin: 54
->> Module load ./restore-util: 54
->>>>>> Module load acorn: 6
->>>>> Module load falafel: 7
->>>>> Module load ./loadConfig: 3
->>>> Module load browserify-transform-tools: 13
->>> Module load aliasify: 15
->>>>>>> Module load resolve: 3
->>>>>> Module load browser-resolve: 4
->>>>>>> Module load acorn: 20
->>>>>>>> Module load estraverse: 3
->>>>>>>> Module load esutils: 4
->>>>>>> Module load escodegen: 11
->>>>>> Module load detective: 33
->>>>>>>>>> Module load ./_stream_readable: 3
->>>>>>>>> Module load ./_stream_duplex: 9
->>>>>>>> Module load ./lib/_stream_transform.js: 9
->>>>>>> Module load readable-stream/transform: 10
->>>>>> Module load through2: 12
->>>>>> Module load concat-stream: 3
->>>>>>>>>>> Module load ./_stream_readable: 3
->>>>>>>>>> Module load ./_stream_duplex: 7
->>>>>>>>> Module load ./lib/_stream_transform.js: 7
->>>>>>>> Module load readable-stream/transform: 8
->>>>>>> Module load through2: 8
->>>>>> Module load stream-combiner2: 11
->>>>> Module load module-deps: 70
->>>>> Module load deps-sort: 3
->>>>>> Module load JSONStream: 3
->>>>>>>>>> Module load ./_stream_readable: 3
->>>>>>>>> Module load ./_stream_duplex: 6
->>>>>>>> Module load ./lib/_stream_transform.js: 7
->>>>>>> Module load readable-stream/transform: 8
->>>>>> Module load through2: 8
->>>>>>>>> Module load ./source-map/source-map-generator: 10
->>>>>>>>> Module load ./source-map/source-node: 3
->>>>>>>> Module load source-map: 14
->>>>>>> Module load inline-source-map: 15
->>>>>>>>> Module load ./source-map/source-map-generator: 9
->>>>>>>>> Module load ./source-map/source-map-consumer: 3
->>>>>>>> Module load source-map: 15
->>>>>>> Module load ./lib/mappings-from-map: 16
->>>>>> Module load combine-source-map: 33
->>>>> Module load browser-pack: 46
->>>>>>>> Module load acorn: 18
->>>>>>> Module load astw: 18
->>>>>> Module load lexical-scope: 19
->>>>>>>>> Module load ./source-map/source-map-generator: 8
->>>>>>>>> Module load ./source-map/source-map-consumer: 5
->>>>>>>> Module load source-map: 16
->>>>>>> Module load inline-source-map: 17
->>>>>> Module load combine-source-map: 21
->>>>> Module load insert-module-globals: 43
->>>>>> Module load acorn: 25
->>>>> Module load syntax-error: 26
->>>>> Module load ./lib/builtins.js: 9
->>>>>> Module load stream-splicer: 4
->>>>> Module load labeled-stream-splicer: 5
->>>> Module load browserify: 208
->>> Module load cordova-js/tasks/lib/bundle-browserify: 216
->> Module load ../plugman/browserify: 234
-> Module load ./prepare: 319
->>>>>>>> Module load sax: 3
->>>>>>> Module load ./sax: 4
->>>>>> Module load ./parsers/index: 4
->>>>> Module load ./parser: 5
->>>> Module load elementtree: 9
+>> Module load chalk: 12
+>>> Module load semver: 3
+>> Module load semver-diff: 4
+> Module load update-notifier: 46
+> Module load ./src/platforms/platforms: 4
+>>>>>>> Module load underscore: 4
+>>>>>>>>>>> Module load sax: 3
+>>>>>>>>>> Module load ./sax: 3
+>>>>>>>>> Module load ./parsers/index: 4
+>>>>>>>> Module load ./parser: 4
+>>>>>>> Module load elementtree: 8
+>>>>>> Module load ../util/xml-helpers: 14
+>>>>> Module load ./PluginInfo: 15
+>>>> Module load ./src/PluginInfo/PluginInfoProvider.js: 16
+>>> Module load ./scriptsFinder: 18
+>>>> Module load q: 5
+>>> Module load ./src/superspawn: 8
+>> Module load ../hooks/HooksRunner: 29
+> Module load ./build: 30
+>> Module load ./src/PlatformJson: 5
+>>> Module load shelljs: 6
+>>> Module load ../plugman/pla`tforms/common: 3
+>>> Module load ./src/ActionStack: 3
+>>>> Module load semver: 5
+>>> Module load ./src/ConfigChanges/ConfigChanges.js: 11
+>> Module load ../platforms/PlatformApiPoly: 26
+> Module load ./prepare: 36
+>>>>>>>> Module load sax: 4
+>>>>>>> Module load ./sax: 5
+>>>>>> Module load ./parsers/index: 6
+>>>>> Module load ./parser: 6
+>>>> Module load elementtree: 12
>>>>> Module load underscore: 5
>>>> Module load ./src/util/xml-helpers: 7
->>> Module load ./AndroidManifest: 17
+>>> Module load ./AndroidManifest: 21
>>>> Module load shelljs: 6
>>> Module load ./pluginHandlers: 8
->> Module load ./lib/AndroidProject: 28
+>> Module load ./lib/AndroidProject: 31
>>> Module load q: 5
->>> Module load ./PlatformJson: 4
+>>> Module load ./PlatformJson: 5
+>>>> Module load semver: 3
>>> Module load ./ConfigChanges/ConfigChanges: 5
->> Module load ./src/PluginManager: 19
->> Module load ./src/CordovaLogger: 3
-> Module load
/Users/nikhil/Developer/apps/perf/platforms/android/cordova/Api.js: 50
-load: 764ms
+>> Module load ./src/PluginManager: 20
+> Module load
/Users/nikhil/Developer/apps/perf/platforms/android/cordova/Api.js: 54
+load: 341ms
> Module load ./lib/prepare: 5
ANDROID_HOME=/Users/nikhil/Library/Android/sdk
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home
->> Module load ./Adb: 3
-> Module load ./lib/build: 7
+> Module load ./lib/build: 6
+> Module load ./GradleBuilder: 4
:preBuild UP-TO-DATE
:preDebugBuild UP-TO-DATE
:checkDebugManifest
@@ -171,6 +119,6 @@
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_51.jdk/Contents/Home
BUILD SUCCESSFUL
-Total time: 1.027 secs
+Total time: 1.244 secs
Built the following apk(s):
/Users/nikhil/Developer/apps/perf/platforms/android/build/outputs/apk/android-debug.apk
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/MSOpenTech/cordova-lib faster
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cordova-lib/pull/434.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #434
----
commit 1d5de898689886dfe71f47a07fa9a9a01cf65c4c
Author: Nikhil Khandelwal <nikhi...@microsoft.com>
Date: 2016-05-03T16:10:25Z
CB-11194 Improve cordova load time
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