`dvc exp show --all-tags`: doesn't show the names of annotated tags.

[iesahin]

Bug Report

Description

dvc exp show --all-tags lists commit id's which correspond to tags, but the tag names are not shown when they are created with git tag -a.

Reproduce

git clone https://github.com/iterative/get-started-experiments
dvc exp show --all-tags

Expected

The Experiments column in the table should show tag names.

Environment information

Recent Ubuntu 20.04 WSL on

Edition Windows 11 Pro
Version 21H2
Installed on ‎7/‎28/‎2021
OS build 22000.100
Experience Windows Feature Experience Pack 421.18901.0.3

[daavoo]

Fun history, I found a fix but the issue only happens when the tags are missing from .git/refs/tags, which I can only reproduce when cloning our example repos 🤷

If tags are present in .git/refs/tags, which happens if I create tags locally or within tests the following code correctly gets the tag name and it is displayed on the table:

dvc/dvc/repo/experiments/show.py

Lines 59 to 62 in 3d604a8

	for refspec in ["refs/tags", "refs/heads"]:
	name = repo.scm.describe(rev, base=refspec)
	if name:
	break