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import platform
import re
import os
from datetime import date
def filename2os_fname( fname ):
# filename2os_fname translate Win or Linux fname to OS dependent style
# takes in account the notion of 'Z:' drive on different systems
# Z:\dir1\dir2\file <==> /mnt/qol_grp_data/dir1/dir2/file
if platform.system() == 'Windows':
fname = re.sub('/mnt/qol_grp_data', 'Z:', fname)
else:
fname = re.sub('Z:', '/mnt/qol_grp_data', fname)
fname = re.sub(r'\\', '/', fname)
fname = os.path.normpath(fname)
return (fname)
def get_runnum(data_dir):
# For the provided data_dir:
# reads, increments data counter and saves it back.
# If nesessary creates counter file and full path to it.
# example
# get_runnum('Z:\Ramsi_EIT\data\')
# get_runnum('/mnt/qol_grp_data/data')
data_dir = filename2os_fname( data_dir );
if not os.path.exists(data_dir):
os.mkdir(data_dir)
if not os.path.isdir(data_dir):
print(f"ERROR: cannot create directory for data: {data_dir}")
print(f"Will use current dir for storage")
data_dir = "."
runnumpath = os.path.join(data_dir, 'autofile')
# convert to OS dependent way
runnumpath = filename2os_fname( runnumpath );
if not os.path.exists(runnumpath):
os.mkdir(runnumpath)
runnum_file = os.path.join(runnumpath, 'runnum.dat');
runnum_file = filename2os_fname( runnum_file );
print(runnum_file)
run_number = 0
if os.path.isfile(runnum_file):
with open(runnum_file, 'r') as f:
content = f.readlines()
run_number = int(content[0])
f.close()
# Increment it and fold if needed
run_number = run_number + 1;
# Important: we are using five digit counters to synchronize
# with qol_get_next_data_file.m
if run_number > 99999:
run_number = 0
with open(runnum_file, 'w') as f:
f.write(f'{run_number}')
f.close()
return(run_number)
def get_next_data_file(prefix, savepath, run_number=None, date_format='%Y%m%d', extention='dat'):
if run_number is None:
run_number = get_runnum( savepath )
today = date.today()
datestr = today.strftime(date_format)
fname = os.path.join(savepath, f'{prefix}_{datestr}_{run_number:05d}.{extention}')
return(fname)
def save_table_with_header(fname, data, header='', comment_symbol='%', skip_headers_if_file_exist=False, item_format='e', item_separator='\t'):
# itemFormat examples: 'e', '.15e', 'f'
fname = filename2os_fname(fname)
file_exist_flag = os.path.exists(fname)
item_format=str.join('', ['{', f':{item_format}', '}'])
with open(fname, 'a') as f:
if not skip_headers_if_file_exist:
for l in header:
f.write(f'{comment_symbol} {l}\n')
if data is not None:
for r in data:
l=item_separator.join( map(item_format.format, r))
f.write(l)
f.write('\n')
f.close()
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