Adding support for generating or passing UUID when uploading proguard mapping on .NET MAUI

[rafalka]

Problem Statement

Uploading a progurad file by <SentryUploadAndroidProguardMapping> but this file is not associated with any release

According https://docs.sentry.io/cli/dif/#uploading-files this association requires adding io.sentry.proguard-uuid meetadata to and using sentry-cli upload-proguard --uuid ...

Solution Brainstorm

Preferred solution: Generate UUID, inject it to AndroidManifest.xml and use during uploading
or: read this UUID from AndroidManifest.xml and use during uploading
or: add support for an environment variable

BTW: Shouldn't other switches --app-id my.app.id, --version. --version-code be used as well?

[bruno-garcia]

Checks out, without uuid the there's no way for the mapping file and the app release to be associated.

Here's we add it to the gradle plugin:

https://github.com/getsentry/sentry-android-gradle-plugin/blob/3400d0b301a068815e73d240391043768a1c32ed/plugin-build/src/main/kotlin/io/sentry/android/gradle/tasks/SentryUploadProguardMappingsTask.kt#L67-L68

The app also needs to know what the uuid was, so it can attach it to events. The server needs to know what mapping file to look up.

like: https://github.com/getsentry/sentry-android-gradle-plugin/blob/3400d0b301a068815e73d240391043768a1c32ed/plugin-build/src/main/kotlin/io/sentry/android/gradle/tasks/SentryGenerateProguardUuidTask.kt#L54C19-L54C56

Ideally we use meta-data, like the docs you linked say:

<application>
  <meta-data
    android:name="io.sentry.proguard-uuid"
    android:value="A_VALID_UUID"
  />
</application>

[rafalka]

I managed to find a workaround until this bug will be fixed:

    <PropertyGroup  Condition="'$(Configuration)'=='Release'">
        <ProguardUuid>$([System.Guid]::NewGuid())</ProguardUuid>
    </PropertyGroup>
    <ItemGroup  Condition="'$(Configuration)'=='Release'">
        <AssemblyAttribute Include="Android.App.MetaData">
            <_Parameter1>"io.sentry.proguard-uuid", Value = "$(ProguardUuid)"</_Parameter1>
            <_Parameter1_IsLiteral>true</_Parameter1_IsLiteral>
        </AssemblyAttribute>
    </ItemGroup>

    <!-- Upload Android Proguard mapping file to Sentry after the build. -->
    <Target Name="CustomUploadAndroidProguardMappingFileToSentry" AfterTargets="UploadDebugInfoToSentry" DependsOnTargets="PrepareSentryCLI"
        Condition="'$(SentryCLI)' != '' And '$(AndroidProguardMappingFile)' != '' And '$(Configuration)'=='Release'">

        <Message Importance="High" Text="Preparing to upload Android Proguard mapping to Sentry for '$(MSBuildProjectName)': $(AndroidProguardMappingFile))" />

        <Exec Command="$(SentryCLIProGuardMappingUploadCommand) --uuid &quot;$(ProguardUuid)&quot; --app-id &quot;$(ApplicationId)&quot; --version &quot;$(ApplicationDisplayVersion)&quot; --version-code &quot;$(ApplicationVersion)&quot; $(AndroidProguardMappingFile)" IgnoreExitCode="true" ContinueOnError="WarnAndContinue">
            <Output TaskParameter="ExitCode" PropertyName="_SentryCLIExitCode" />
        </Exec>
        <Warning Condition="'$(_SentryCLIExitCode)' != '0'" Text="Sentry CLI could not upload proguard mapping." />
    </Target>    
    

please note than I use separated platform project and these entries I added only to my Android projects.
For single project MAUI app some extra conditions may be required

[bruno-garcia]

Thank you for sharing that! would you be willing to share that fix in a PR? We have a single file where we do the sentry cli commands. it just missed these its u figured out already.

[rafalka]

Sure!
Feel free to use it.