Change `df` so that it correctly scales numbers of bytes by the
default block size, 1024, when neither -h nor -H are specified on the
command-line. Previously, it was not scaling the number of bytes in
this case.
Fixes#3058.
Add support for `split -n l/NUM`. Previously, `split` only supported
`-n NUM`, which splits a file into `NUM` chunks by byte. The `-n
l/NUM` strategy splits a file into `NUM` chunks without splitting
lines across chunks.
Make the `Strategy::Number` enumeration value more general by
replacing the number parameter with a `NumberType` enum parameter.
This allows a future commit to update `split` to support the various
sub-strategies for the `-n`. (This commit does not add support for the
other sub-strategies.)
https://github.com/uutils/coreutils/pull/3084 (2a333ab391) had some
missing coverage and was merged before I had a chance to fix it.
This PR adds some coverage / improved error messages that were missing
from that previous PR.
Using usize limits 32-bit platforms to operate only on sizes of 4GiB
or less. While 32-bit platforms only have 4GiB of addressable memory,
not all operations require the data to be entirely in memory, so this
limitation can be lifted if we use u64 instead of usize.
This only fixes the core function, further commits fix the utilities
making use of this function.
If `conv=block,sync` command-line arguments are given and there is at
least one partial record read from the input (for example, if the
length of the input is not divisible by the value of the `ibs`
argument), then output an extra block of `cbs` spaces.
For example, no extra spaces are printed in this example because the
input is of length 10, a multiple of `ibs`:
$ printf "012\nabcde\n" \
> | dd ibs=5 cbs=5 conv=block,sync status=noxfer \
> && echo $
012 abcde$
2+0 records in
0+1 records out
But in this example, 5 extra spaces are printed because the length of
the input is not a multiple of `ibs`:
$ printf "012\nabcdefg\n" \
> | dd ibs=5 cbs=5 conv=block,sync status=noxfer \
> && echo $
012 abcde $
2+1 records in
0+1 records out
1 truncated record
The number of spaces printed is the size of the conversion block,
given by `cbs`.
This should correct the usage strings in both the `--help` and user documentation. Previously, sometimes the name of the utils did not show up correctly.
Create a new module `blocks.rs` to contain the block-related helper
functions. This commit only moves the location of the code and related
tests, it does not change the functionality of `dd`.
