CLI - Creating same bug fix branch name twice causes fireworks

[katzung-slac]

Tried creating a "fix-14" branch twice on the same repo - things went badly.
Don't know if preflighting might be possible/worthwhile, or if just a better/clearer error message can be produced.

This is the transcript from the second attempt to create a "fix-14" branch:

`(swfactory-env) [katzung@sdfiana008 oscilloscope]$ bs create branch --fix 14
Checking current directory if a component...
[?] Specify what to branch from:

branch
tag
commit

Specify name of branch: dev-patrick
INFO-root:[request.py:44 - log_api_response() ] 500
INFO-root:[request.py:45 - log_api_response() ] {'timestamp': '2024-11-06T00:26:30.544+00:00', 'status': 500, 'error': 'Internal Server Error', 'path': '/v1/component/oscilloscope/branch', 'errorCode': -2, 'errorMessage': 'The version label is not valid', 'errorDomain': 'ComponentService::addNewVersion'}
INFO-root:[request.py:46 - log_api_response() ] https://ad-build-dev.slac.stanford.edu/api/cbs/v1/component/oscilloscope/branch
INFO-root:[request.py:47 - log_api_response() ] b'{"type": "branch", "branchPoint": "dev-patrick", "branchName": "fix-14"}'
INFO-root:[request.py:48 - log_api_response() ] {'User-Agent': 'python-requests/2.31.0', 'Accept-Encoding': 'gzip, deflate', 'Accept': '/', 'Connection': 'keep-alive', 'linux_username': 'katzung', 'github_username': 'katzung-slac', 'Content-Length': '72', 'Content-Type': 'application/json'}
Username for 'https://github.com': katzung-slac
Password for 'https://katzung-slac@github.com':
Cmd('git') failed due to: exit code(1)
cmdline: git push -u origin fix-14
stderr: 'To https://github.com/ad-build-test/Oscilloscope
! [rejected] fix-14 -> fix-14 (fetch first)
error: failed to push some refs to 'https://github.com/ad-build-test/Oscilloscope'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.'
Deleting branch...
Traceback (most recent call last):
File "/sdf/home/k/katzung/demo/BuildSystem/bs_cli/adbs_cli/component.py", line 41, in git_push
self.git_repo.git.push('-u', 'origin', branch_name)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/git/cmd.py", line 986, in
return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/git/cmd.py", line 1598, in _call_process
return self.execute(call, **exec_kwargs)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/git/cmd.py", line 1388, in execute
raise GitCommandError(redacted_command, status, stderr_value, stdout_value)
git.exc.GitCommandError: Cmd('git') failed due to: exit code(1)
cmdline: git push -u origin fix-14
stderr: 'To https://github.com/ad-build-test/Oscilloscope
! [rejected] fix-14 -> fix-14 (fetch first)
error: failed to push some refs to 'https://github.com/ad-build-test/Oscilloscope'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/bin/bs", line 33, in
sys.exit(load_entry_point('adbs-cli', 'console_scripts', 'bs')())
File "/sdf/home/k/katzung/demo/BuildSystem/bs_cli/adbs_cli/bs_main.py", line 57, in main
entry_point(prog_name='bs')
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/click/core.py", line 1157, in call
return self.main(*args, **kwargs)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/click/core.py", line 1078, in main
rv = self.invoke(ctx)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/click/core.py", line 1688, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/click/core.py", line 1434, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/click/core.py", line 783, in invoke
return __callback(*args, **kwargs)
File "/sdf/home/k/katzung/demo/BuildSystem/bs_cli/adbs_cli/create_commands.py", line 160, in branch
if (component_obj.git_push(full_branch_name)):
File "/sdf/home/k/katzung/demo/BuildSystem/bs_cli/adbs_cli/component.py", line 46, in git_push
self.git_repo.git.branch('-D', branch_name)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/git/cmd.py", line 986, in
return lambda *args, **kwargs: self._call_process(name, *args, **kwargs)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/git/cmd.py", line 1598, in _call_process
return self.execute(call, **exec_kwargs)
File "/sdf/home/k/katzung/.conda/envs/swfactory-env/lib/python3.10/site-packages/git/cmd.py", line 1388, in execute
raise GitCommandError(redacted_command, status, stderr_value, stdout_value)
git.exc.GitCommandError: Cmd('git') failed due to: exit code(1)
cmdline: git branch -D fix-14
stderr: 'error: Cannot delete branch 'fix-14' checked out at '/sdf/home/k/katzung/demo/oscilloscope''
`

[katzung-slac]

Would make a great test case down the road - run the same bs create branch --fix 42 command twice in a row and sit back and watch the fireworks! (Or confirm that a useful error message is presented...)