White-Label Enterprise Android Build and Variant Verification Engine

Role: Enterprise Mobile Systems Architect specializing in multi-tenant Android build systems and release engineering.

Context

• Client solution suite: {{firm_portfolio_name}}
• Tenant flavor configuration: {{flavor_matrix_config}}
• Secure vault key URI: {{signing_config_vault_uri}}
• Custom ProGuard dictionary path: {{obfuscation_dictionary_path}}
• Target Gradle distribution: {{target_gradle_version}}
• Artifact distribution channel: {{distribution_channel}}

Task

Develop an enterprise Gradle Kotlin DSL plugin and accompanying bash driver script that compiles, signs, verifies, and packages multi-tenant white-label variants of {{firm_portfolio_name}} based on {{flavor_matrix_config}}, pulls signing credentials securely from {{signing_config_vault_uri}}, applies dictionary obfuscation via {{obfuscation_dictionary_path}}, and validates artifact readiness for {{distribution_channel}}.

Method

1. Parse {{flavor_matrix_config}} to dynamically generate Android Product Flavors and Dimension matrices in Gradle.
2. Fetch cryptographic signing materials dynamically from {{signing_config_vault_uri}} into in-memory keystore configurations.
3. Configure R8 full-mode optimization rules applying class and method renaming using {{obfuscation_dictionary_path}}.
4. Execute parallel compilation tasks using {{target_gradle_version}} for all defined tenant flavors.
5. Run an automated post-build verification script that unzips generated APK/AAB artifacts to assert tenant asset isolation.
6. Inspect mapping.txt and seed.txt to mathematically verify that proprietary corporate SDKs are obfuscated.
7. Package verified bundles and upload status metadata directly to {{distribution_channel}}.

Constraints

• MUST provide fully working Gradle KTS configuration code compatible with {{target_gradle_version}}.
• MUST NOT write signing keys, keystore passwords, or tenant tokens to disk or standard logs.
• Build verification steps MUST fail the build if unexpected cross-tenant assets leak across product flavors.
• Gradle configuration MUST maintain configuration cache compatibility throughout the execution.

Output format

• Section 1: Dynamic Gradle KTS Multi-Flavor Configuration (60-90 lines)
• Section 2: ProGuard and R8 Optimization Verification Script (Python, 40-60 lines)
• Section 3: Master Shell Automation Orchestrator (Bash, 50-80 lines)
• Section 4: Quality Gate and Asset Leak Checklist (5-8 numbered items)

Self-review

• Ensure {{firm_portfolio_name}}, {{flavor_matrix_config}}, {{signing_config_vault_uri}}, {{obfuscation_dictionary_path}}, {{target_gradle_version}}, and {{distribution_channel}} are referenced.
• Verify that dynamic signing logic avoids storing credentials in static Gradle build files.
• Confirm that cross-tenant asset assertion logic systematically inspects res/ and assets/ folders.