[Bug]: Raise an exception if the TE stitch file does not exist or is an empty file (tc_analysis set) #872
Description
What happened?
Related to #866
The TE stitch file used by zppy was empty, which raised an ambiguous parsing error.
/lcrc/group/e3sm/ac.forsyth2/zppy_min_case_e3sm_diags_cdat_migrated_output/test-diags-no-cdat-20240917/v3.LR.historical_0051/post/atm/tc-analysis_1987_1988/cyclones_stitch_v3.LR.historical_0051_1987_1988.dat
What did you expect to happen? Are there are possible answers you came across?
No response
Minimal Complete Verifiable Example (MVCE)
No response
Relevant log output
2024-10-09 16:25:18,711 [ERROR]: core_parameter.py(_run_diag:343) >> Error in e3sm_diags.driver.tc_analysis_driver
Traceback (most recent call last):
File "/home/ac.tvo/E3SM-Project/e3sm_diags/e3sm_diags/parameter/core_parameter.py", line 340, in _run_diag
single_result = module.run_diag(self)
File "/home/ac.tvo/E3SM-Project/e3sm_diags/e3sm_diags/driver/tc_analysis_driver.py", line 91, in run_diag
test_data["metrics"] = generate_tc_metrics_from_te_stitch_file(test_te_file)
File "/home/ac.tvo/E3SM-Project/e3sm_diags/e3sm_diags/driver/tc_analysis_driver.py", line 181, in generate_tc_metrics_from_te_stitch_file
te_stitch_vars = _get_vars_from_te_stitch(lines, max_len, num_storms)
File "/home/ac.tvo/E3SM-Project/e3sm_diags/e3sm_diags/driver/tc_analysis_driver.py", line 258, in _get_vars_from_te_stitch
year_start = int(lines[0].split("\t")[2])
IndexError: list index out of range
2024-10-09 16:25:22,252 [WARNING]: e3sm_diags_driver.py(main:378) >> There was not a single valid diagnostics run, no viewer created.
2024-10-09 16:25:22,253 [ERROR]: run.py(run_diags:91) >> Error traceback:
Traceback (most recent call last):
File "/home/ac.tvo/E3SM-Project/e3sm_diags/e3sm_diags/run.py", line 89, in run_diags
params_results = main(params)
File "/home/ac.tvo/E3SM-Project/e3sm_diags/e3sm_diags/e3sm_diags_driver.py", line 397, in main
if parameters_results[0].fail_on_incomplete and (
IndexError: list index out of rangeAnything else we need to know?
No response
Environment
main and cdat-migration-fy24 branch