Mirror repo name

[ericaneininger]

PR Summary

Sci/Tech Reviewer:
Code Reviewer: @james-bruten-mo

Extract the repository name from the merge source string, rather than passing down the name of the destination directory. This allows source to be extracted from a mirror even when the destination directory name does not match the name of the repository.

Null change except when using localmirrors:.

closes #212

Code Quality Checklist

• have performed a self-review of my own code
• My code follows the project's style guidelines
• Comments have been included that aid understanding and enhance the readability of the code
• My changes generate no new warnings
• All automated checks in the CI pipeline have completed successfully

Testing

• This change has been tested appropriately (please describe)
  Tested with rose-stem:

• UM rose-stem was modified to extract SimSys_scripts from a working copy, and MOCI from a branch.
  • Run with group=scripts
  • Extract from log extract_source/job.err of UM rose-stem:

INFO:get_git_sources:[2026-03-17 11:44:28] Cloning moci from git@github.com:ericaneininger/moci.git at ref fcm_make_redundancy
...
INFO:get_git_sources:[2026-03-17 11:44:58] Syncing SimSys_Scripts at ref 

• MOCI rose-stem was modified to extract from mirrors with SimSys_scripts.git repo from a working copy of this branch into a directory called "Git_Scripts" and jules-internal.git repo into a directory called "jules"
  • Run with group=tests
  • Extract from log extract_source/job.err of MOCI rose-stem:

INFO:get_git_sources:[2026-03-17 11:48:51] Syncing Git_Scripts at ref
INFO:get_git_sources:[2026-03-17 11:48:57] Cloning jules from localmirrors: at ref vn7.1

Further testing with a branch of a UKESM suite:
https://code.metoffice.gov.uk/trac/roses-u/browser/d/x/0/3/3/double_moci_extract
This suite uses a single stage extract direct onto HPC and therefore exclusively uses localmirrors. The branch has been set up to extract and run with 2 moci.git extracts into

• moci_postproc - with an additional branch source merged from Git mirrors
• moci_drivers - with an additional merged source from a local working copy
  Extract from log extract/job.err:

...
INFO:get_git_sources:[2026-03-17 10:13:23] Cloning moci_postproc from localmirrors: at ref 2025.12.1
INFO:get_git_sources:[2026-03-17 10:13:24] Merging git@github.com:ericaneininger/moci.git at ref fcm_make_redundancy into moci_postproc
INFO:get_git_sources:[2026-03-17 10:13:25] Cloning moci_drivers from localmirrors: at ref 2025.12.1
INFO:get_git_sources:[2026-03-17 10:13:25] Merging cazld000038:/data/users/erica.neininger/Git_Repos/MyForks/MOCI_efnp at ref main into moci_drivers
...

Security Considerations

• I have reviewed my changes for potential security issues
• Sensitive data is properly handled (if applicable)
• Authentication and authorisation are properly implemented (if applicable)

AI Assistance and Attribution

• Some of the content of this change has been produced with the assistance of Generative AI tool name (e.g., Met Office Github Copilot Enterprise, Github Copilot Personal, ChatGPT GPT-4, etc) and I have followed the Simulation Systems AI policy (including attribution labels)

Sci/Tech Review

• I understand this area of code and the changes being added
• The proposed changes correspond to the pull request description
• Documentation is sufficient (do documentation papers need updating)
• Sufficient testing has been completed

(Please alert the code reviewer via a tag when you have approved the SR)

Code Review

• All dependencies have been resolved
• Related Issues have been properly linked and addressed
• Code quality standards have been met
• Tests are adequate and have passed
• Security considerations have been addressed
• Performance impact is acceptable

[james-bruten-mo]

Thanks, this looks a sensible. I've checked it works in rose stem and suites, and with the jules-internal repo