`exp run`: `--glob` option doesn't work

Bug Report

Description

dvc repro --glob 't*' runs all the stages starting with t in the current directory.

dvc exp run --glob 't*' looks for a stage having the name t*, and it can’t find.

Reproduce

dvc stage add -n t1 echo t1
dvc stage add -n t2 echo t2
dvc stage add -n t3 echo t3
dvc stage add -n t4 echo t4
dvc exp run --glob 't*'

Expected

I expect --glob to run multiple stages.

Environment information

dvc 2.6.3

[pmrowla]

@skshetry Is it possible to glob the stages before checkout and only checkout the pre-filtered stages?

This is what @skshetry already suggested as a fix (https://github.com/iterative/dvc/pull/6458#discussion_r691044998)

Why does this break --glob but other stage selection options like --downstream work despite not having corresponding options in checkout?

--downstream doesn’t affect what would get checked out in exp run. Whether the command is exp run <target> or exp run --downstream <target>, the resulting checkout will always still be dvc checkout --with-deps <target>

@dberenbaum

[dberenbaum]

I need to test each of them to be sure but if the team decides not to implement it, we should remove --glob from dvc exp run --help.

This is done, so lowering the priority of this one.