Backport #8901 - Adjusted slightly for 1.9
In investigating #7947 it has become clear that the storage component of go-git repositories needs closing.
This PR adds this Close function and adds the Close functions as necessary.
In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files.
Fixes#7947
* Fixes#2738 - /git/tags API
* proper URLs
* Adds function comments
* Updates swagger
* Removes newline from tag message
* Removes trailing newline from commit message
* Adds integration test
* Removed debugging
* Adds tests
* Fixes bug where multiple tags of same commit show wrong tag name
* Fix formatting
* Removes unused varaible
* Fix to annotated tag function names and response
* Update modules/git/repo_tag.go
Co-Authored-By: Lauris BH <lauris@nix.lv>
* Uses TagPrefix
* Changes per review, better error handling for getting tag and commit IDs
* Fix to getting commit ID
* Fix to getting commit ID
* Fix to getting commit ID
* Fix to getting commit ID
* Inital routes to git refs api
* Git refs API implementation
* Update swagger
* Fix copyright
* Make swagger happy add basic test
* Fix test
* Fix test again :)
