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File size: 2,237 Bytes
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import os
cur_dir = os.path.dirname(os.path.realpath(__file__))
# mkdir jsonl
jsonl_dir = os.path.join(cur_dir, 'jsonl')
if not os.path.exists(jsonl_dir):
os.makedirs(jsonl_dir)
# list files in jsonl-all directory
jsonl_all_dir = os.path.join(cur_dir, 'jsonl-all')
file_sizes = {}
for file in os.listdir(jsonl_all_dir):
file_path = os.path.join(jsonl_all_dir, file)
file_size = os.path.getsize(file_path)
file_sizes[file] = file_size
# sort files by size (keep dictionary)
sorted_files = sorted(file_sizes.items(), key=lambda x: x[1], reverse=True)
def widen_variance(file_sizes, reduction_factor):
sorted_files = sorted(file_sizes.items(), key=lambda x: x[1], reverse=True)
print(sorted_files)
for i, (file, size) in enumerate(sorted_files):
if i == 0:
continue
sorted_files[i] = (file, round(size * (reduction_factor / (i/10))))
return sorted_files
# increase the file size distribution
targeted_file_sizes = widen_variance(file_sizes, 0.00005)
print("Sorted files by size:")
for file, size in sorted_files:
print(f"{file}: {size}")
print("Targeted file sizes:")
for file, size in targeted_file_sizes:
print(f"{file}: {size}")
# targeted to dict
targeted_file_sizes = dict(targeted_file_sizes)
for file in targeted_file_sizes:
size = targeted_file_sizes[file]
file_path = os.path.join(jsonl_all_dir, file)
file_path_target = os.path.join(jsonl_dir, file)
os.system(f"head -c {size} {file_path} > {file_path_target}")
print(f"Created {file_path_target} with size {size} bytes")
with open(file_path_target, 'rb+') as file: # Open the file in read-write binary mode
file.seek(0, 2) # Move to the end of the file
file_size = file.tell() # Get the total file size
for i in range(file_size - 1, -1, -1): # Start from the last byte and move backwards
file.seek(i) # Move the cursor to the ith position from the start
if file.read(1) == b'\n': # If a newline character is found
file.truncate(i + 1) # Truncate the file from this point
break # Exit the loop after truncating
print("Done!") |