Resolved Unity Cloud Build - Firebase Distribution (Windows Server)

Hi guys,

After trying several ways to upload app to Firebase Distribution after built (having .apk generated). Finally find out how to upload to Firebase Distribution (at least for Windows Server and Android).

I took this post as a first step: https://blog.kakeragames.com/2019/11/03/firebase-app-distribution-with-unity-cloud-build.html, but I had to change it and simplify it to make it work.

ATTENTION: As finally I had to install firebase-tools globally, there is no need for package.json. You can install firebase-tool globablly in your local also to exec "firebase login:ci" to obtain the token

Code (CSharp):

1. #!/bin/sh
2.  
3. npm install -g firebase-tools
4.  
5. path=$(cygpath -w "$UNITY_PLAYER_PATH")
6.  
7. firebase appdistribution:distribute "$path" --token "$FIREBASE_TOKEN" --app "$FIREBASE_APP" --groups "$FIREBASE_GROUPS"

 

To upload .ipa (iOS) I had to change it a bit because UCB uses Mac OS. This is more likely the one on the post I pinned:

Code (CSharp):

1. #!/bin/sh
2.  
3. npm install firebase-tools
4.  
5. path="$WORKSPACE/.build/last/$TARGET_NAME/build.ipa"
6.  
7. $(npm bin)/firebase appdistribution:distribute $path --token "$FIREBASE_TOKEN" --app "$FIREBASE_APP" --groups "$FIREBASE_GROUPS"

 

At the end, I settled with this script. Handles both Android and iOS.

Code (csharp):

1. #!/bin/sh
2.  
3. git_branch=$(git branch --show-current)
4.  
5. # check if cygpath command exists
6. if [ -x "$(command -v cygpath)" ]; then
7.     # we have cygpath, we are in a windows environment. convert the path to windows path.
8.     unity_player_path_final=$(cygpath -w "${UNITY_PLAYER_PATH}")
9. else
10.     # no cygpath, we are in a unix environment. no need to convert the path.
11.     unity_player_path_final=${UNITY_PLAYER_PATH}
12. fi
13.  
14. # install firebase-tools via npm
15. npm install -g firebase-tools
16.  
17. # upload to firebase app distribution
18. firebase appdistribution:distribute "${unity_player_path_final}" --token "${FIREBASE_TOKEN}" --app "${FIREBASE_APP}" --groups "${FIREBASE_GROUPS}" --release-notes "${git_branch} ${UCB_BUILD_NUMBER} ${BUILD_REVISION}"

 

How do you configure Unity Cloud Build to launch this script ?

 

There is a Post Build Script field on each UCB Target Config where you can set the name of the bash script (having it on the project root directory) you want to execute after a build is done.

 

It doesn't have to be at the root, you can give it a relative path too. Eg:

scripts/unity_cloud_build/post_build.sh

Also, the variables that are used but not declared in the script (such as

FIREBASE_TOKEN

) are declared in the target config as well, under Advanced Settings > Environment variables.

 

Hello. I succeded to do it.
Getting the token was not easy. I had to launch firebase CLI authenticate on my mac before.

However, the scripts tells me that
> ⚠ Authenticating with `--token` is deprecated and will be removed in a future major version of `firebase-tools`. Instead, use a service account key with `GOOGLE_APPLICATION_CREDENTIALS`: https://cloud.google.com/docs/authentication/getting-started

and it seems that it will be effective at the 31 March 2023.

I followed the doc but I did not understand what should I do.

Someone has an idea ? Thank you