GitHub EMU Implementation, BitBucket Server to GitHub Migration and

Jenkins Pipeline to GitHub Action Migration

Summary: Migration of BitBucket server repositories into GitHub

Tech Stack: bbs-exporter, ECI, Python Scripting

Requirements	Solution	Results
Migrate 3000+ repositories from Bitbucket Server to GitHub Enterprise Cloud EMU Preserve commit history, branches, tags, webhooks, and repo permissions Ensure seamless user identity management with Enterprise Managed Users (EMU) Map Bitbucket Projects structure into GitHub Teams for governance Provide pre- & post-migration validation to avoid data loss	Bifurcated repos into Active vs Inactive based on last push date Migrated inactive repos during business hours with zero downtime risk Migrated active repos during planned downtime to ensure clean cutover Built a Python validation script for repo inventory, permissions, and webhooks (pre & post validation) Replicated Bitbucket Projects → GitHub Teams structure for simplified governance Provisioned correct repo access via GitHub Teams automation	Migrated 3000+ repos with complete history and zero data loss Seamless transition of users to GitHub EMU with correct access mappings Ensured minimal downtime for active repos Improved governance through GitHub Teams and fine-grained access controls