adding quick-chunk

python/quick-chunk

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+
+"""
+Will break apart large files into smaller files
+"""
+
+import argparse
+import time
+
+
+def parse_args():
+    argp = argparse.ArgumentParser(
+            description="Will break a large file into smaller files"
+    )
+
+    argp.add_argument(
+            'large_file',
+            help="Full path for large file"
+    )
+
+    argp.add_argument(
+            '--prefix', '-p',
+            default='small',
+            help="Prefix for the smaller files (default: %(default)s)"
+    )
+
+    argp.add_argument(
+            '--extension', '-x',
+            default='txt',
+            help="Extension for the smaller files (default: %(default)s)"
+    )
+
+    argp.add_argument(
+            '-s', '--size',
+            default='10K',
+            help="File size limits (5K, 10M, 2G)"
+    )
+
+    return argp.parse_args()
+
+
+def main():
+    args = parse_args()
+
+    file_count = 0
+
+    # get size for chunks
+    size_value = args.size
+    size_value_parts = re.match(r'(\d+)([BbKkMmGgTt]?)', size_value).groups()
+    if size_value_parts[1]:
+        factor = (
+                (size_value_parts[1].lower() == 'k' and 1) or
+                (size_value_parts[1].lower() == 'm' and 2) or
+                (size_value_parts[1].lower() == 'g' and 3) or
+                (size_value_parts[1].lower() == 't' and 4)
+        )
+        size_limit = int(size_value_parts[0]) * 1024**factor
+    else:
+        size_limit - int(size_value_parts[0])
+
+
+    with open(args.large_file) as large_file:
+
+        while chunk := large_file.read(size_limit):
+            file_count = file_count + 1
+            output_filename = f"{args.prefix}-{file_count}.{args.extension}"
+
+            with open(output_filename, 'w') as small_file:
+                small_file.write(chunk)
+
+
+if __name__ == "__main__":
+    main()
+