Rush • A new and improved way of building extensions

luv.ak.tech · June 24, 2021, 6:44am

i am so pleased that lambda expressions are finally added this is the only i needed now i will only use rush

Akshat_Rana · June 26, 2021, 6:29am

Great was waiting and finally came…

hammerhai · June 26, 2021, 6:34am

@Akshat_Rana I feel as though your comment can be taken in a way you didn’t mean it and to me the comment screams “you took too long.” Thank Shreyash for his hard work, not just a short, possibly petty comment.

luv.ak.tech · June 27, 2021, 8:09am

shreyash i have a doubt does this require ant to be installed and second does it automatically proguard the extensions???

iamwsumit · June 27, 2021, 8:16am

AFAIK, you need to set the optimize to true in metadata file. And I think now it comes true default from new update. You just need to paas the -r flag while building and the extension will be proguard.

I think no. I read somewhere in this topic that rush don’t require ant for building the extension.

And now I think shreyash only may confirm this.

luv.ak.tech · June 27, 2021, 8:33am

when i try to run rush build -r
i get this error -

$ rush build -r
                      __
     _______  _______/ /_
    / ___/ / / / ___/ __ \
   / /  / /_/ (__  / / / /
  /_/   \__,_/____/_/ /_/

• Build initialized

┌ Checking project files
│ info Checking metadata file (rush.yml)
│ info Checking AndroidManifest.xml file
└ done
┌ Compiling source files
│ info Picked 20 source files
└ done
┌ Processing the extension
│ info Desugaring Java 8 language features
│ info Linking extension assets and dependencies
│ info Optimizing the extension
│      Picked up _JAVA_OPTIONS: -Xmx2048M
│
│ note there were 5004 duplicate class definitions.
│            (https://www.guardsquare.com/proguard/manual/troubleshooting#duplicateclass)
│
│ warn org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ManagementFactory
│ warn org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
│ warn org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
│ warn org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ManagementFactory
│ warn org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
│ warn org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
│ warn org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.ManagementFactory
│ warn org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.RuntimeMXBean
│ warn org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.ManagementFactory
│ warn org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.RuntimeMXBean
│ warn there were 10 unresolved references to classes or interfaces.
│               You may need to add missing library jars or update their versions.
│               If your code works fine without the missing classes, you can suppress
│               the warnings with '-dontwarn' options.
│               (https://www.guardsquare.com/proguard/manual/troubleshooting#unresolvedclass)
│
│ erro Please correct the above warnings first.
└ failed

• Build failed [5s 854ms] [1 error; 11 warnings]

and same with rush build -o but it works when i just run rush build

Shreyash · June 27, 2021, 8:37am

Yes, that’s correct. Rush does not require Apache Ant in order to build extensions. It in itself is a build tool like Apache Ant, but designed specifically for building extensions.

Talking about optimizing your extensions with ProGuard, there are a couple of ways this can be done in Rush:

Using the --release flag (or -r for short): This flag is used to generate a release build of your extensions. When it is detected, Rush performs a clean build of your extension, and optionally optimizes your extension if build.release.optimize is set to true in the metadata file.
Using the --optimize flag (or -o for short): This flags optimizes your extension no matter what the value of build.release.optimize. Unlike the release flag, this doesn’t invalidates the build cache, resulting in faster builds.

Shreyash · June 27, 2021, 8:44am

As the warning says, ProGuard is unable to find the mentioned classes. There are a couple of ways to solve these errors:

By adding the mentioned classes to the classpath.
By using the -dontwarn rule to the ProGuard rules file ONLY IF you’re sure that those missing classes won’t affect the rest of your code. Here you can read more about the -dontwarn rule: ProGuard Manual: Usage | Guardsquare

Nami_Chand · June 29, 2021, 8:58am

Please solve this error-

     _______  _______/ /_
    / ___/ / / / ___/ __ \
   / /  / /_/ (__  / / / /
  /_/   \__,_/____/_/ /_/

• Build initialized

┌ Checking project files
│ info Checking metadata file (rush.yml)
│ info Checking AndroidManifest.xml file
└ done
┌ Compiling source files
│ info Picked 1 source file
└ done
┌ Processing the extension
│ info Desugaring Java 8 language features
│ info Linking extension assets and dependencies
│ info Optimizing the extension
│ note there were 4810 duplicate class definitions.
│            (https://www.guardsquare.com/proguard/manual/troubleshooting#duplicateclass)
│
│ erro The output jar is empty. Did you specify the proper '-keep' options?
└ failed

• Build failed [15s 328ms] [1 error]

Shreyash · June 29, 2021, 10:02am

Can you show me the contents of your proguard-rules.pro file.

Nami_Chand · June 29, 2021, 10:06am

# Add any ProGuard configurations specific to this
# extension here.

-keep public class in.sonraj.qrlogo.Qrlogo {
    public *;
 }
-keeppackagenames gnu.kawa**, gnu.expr**

-optimizationpasses 4
-allowaccessmodification
-mergeinterfacesaggressively

-repackageclasses 'in/sonraj/qrlogo/repack'
-flattenpackagehierarchy
-dontpreverify

Shreyash · June 29, 2021, 10:12am

Okay, this is a bit weird. Make sure that:

The Java file, Qrlogo.java, isn’t empty.
The package in which Qrlogo.java resides matches with this: in.sonraj.qrlogo

Xoma · June 29, 2021, 10:27am

Will I able to write code in both Kotlin and Java?

Shreyash · June 29, 2021, 10:32am

Yes, you can.

luv.ak.tech · June 30, 2021, 6:21am

is there any way to integrate xml in rush if yes it could be greatt

Shreyash · June 30, 2021, 10:21am

Please specify what do you mean by “integrate XML”.

luv.ak.tech · June 30, 2021, 11:29am

i mean like xml files eg, strings.xml, attrs.xml

Shreyash · June 30, 2021, 12:18pm

Nope, that’s not yet possible. Fyi, it’s not something that can be implemented entirely through Rush; some changes are necessary on the upstream (AI2) to support the use of XML resources in extensions.

devcafeofficial · July 2, 2021, 3:42am

Hello @Shreyash . First of all thanks for really great project Rush.
I’m very new to rush and commands. and I tried to create extension by using Rush. It created my extension folder successfully but I got some errors on build.

I have no spaces in my directory or in filename.
I’ve tried on desktop and D drive to make my project. (same error everywhere)
I’m using Windows PowerShell

As you can see java & rush versions on my machine and successfully created extension project folder

But I’m getting this error while building my project by using rush build -r

Your help will be appreciated

devcafeofficial · July 2, 2021, 4:34am

Also getting this error with version 1.2.0