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chonker
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Allow abbreviated file sizes

This commit is contained in:
Tim Van Baak 2020-02-11 08:45:16 -08:00
parent f749606f57
commit cbcb073dfd
1 changed files with 15 additions and 2 deletions
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17
chonker.py
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@ -11,6 +11,19 @@ import sys
signal(SIGPIPE,SIG_DFL) signal(SIGPIPE,SIG_DFL)
def filesize(s):
try:
if s[-1].upper() == "K":
return int(s[:-1]) * 1024
elif s[-1].upper() == "M":
return int(s[:-1]) * 1024**2
elif s[-1].upper() == "G":
return int(s[:-1]) * 1024**3
return int(s)
except:
raise ArgumentTypeError(f"'{s}' is not a valid file size")
def parse_args(): def parse_args():
""" """
Helper function for argument parsing. Helper function for argument parsing.
@ -19,8 +32,8 @@ def parse_args():
"command invocation") "command invocation")
parser.add_argument("--verbose", "-v", action="store_true", help="Verbose " parser.add_argument("--verbose", "-v", action="store_true", help="Verbose "
"logging.") "logging.")
parser.add_argument("--chunk", type=int, default=1024, help="Chunk size in bytes.") parser.add_argument("--chunk", type=filesize, default=1024, help="Chunk size in bytes.")
parser.add_argument("--bufsize", type=int, default=1024, help="Buffer " parser.add_argument("--bufsize", type=filesize, default=1024, help="Buffer "
"size for reading from stdin.") "size for reading from stdin.")
parser.add_argument("--exec", required=True, help="Command to pipe chunks to.") parser.add_argument("--exec", required=True, help="Command to pipe chunks to.")
# parser.add_argument("--inc", help="Pattern to find/replace with the " # parser.add_argument("--inc", help="Pattern to find/replace with the "