Add some helper functions and adjust some error-handling to make the
`Output::dd_out()` method, containing the main loop of the `dd`
program, more concise. This commit also adds documentation and
comments describing the main loop procedure in more detail.
Show a warning if the `skip=N` command-line argument would cause `dd`
to skip past the end of the input. For example:
$ printf "abcd" | dd bs=1 skip=5 count=0 status=noxfer
'standard input': cannot skip to specified offset
0+0 records in
0+0 records out
Show a warning when a block size includes "0x" since this is
ambiguous: the user may have meant "multiply the next number by zero"
or they may have meant "the following characters should be interpreted
as a hexadecimal number".
When specifying `seek=N` and *not* specifying `conv=notrunc`, truncate
the output file to `N` blocks instead of truncating it to zero before
starting to write output. For example
$ printf "abc" > outfile
$ printf "123" | dd bs=1 skip=1 seek=1 count=1 status=noxfer of=outfile
1+0 records in
1+0 records out
$ cat outfile
a2
Fixes#3068.
Correct the behavior of `dd` when multiple arguments are provided.
Before this commit, if the multiple arguments was provided then
the validation error are returned.
For example
```
$ printf '' | ./target/debug/dd status=none status=noxfer
error: The argument '--status=<LEVEL>' was provided more than once, but cannot be used multiple times
USAGE:
dd [OPTIONS]
For more information try --help
```
The unittest was added for this case.
- Change the main! proc_macro to a bin! macro_rules macro.
- Reexport uucore_procs from uucore
- Make utils to not import uucore_procs directly
- Remove the `syn` dependency and don't parse proc_macro input (hopefully for faster compile times)
Correct the behavior of `dd` with the `status=noxfer` option. Before
this commit, the status output was entirely suppressed (as happens
with `status=none`). This was incorrect behavior. After this commit,
the input/output counts are printed to stderr as expected.
For example,
$ printf "" | dd status=noxfer
0+0 records in
0+0 records out
This commit also updates a unit test that was enforcing the wrong
behavior.
- Adds more jargon to the spellchecker jargon file.
- Adds more ignores to the per-project ignores.
- Fixes clippy warnigns about uneeded clones on non-linux.
- Block/Unblock now account for system dependend newlines.
- Adds words to cspell exceptions
- Converts test macros to use Default trait.
- Converts parser to use Default trait.
- Adds Windows-friendly test files for block/unblock when nl is present
in test/spec file.
- Removes dd from feat_require_unix (keeps it in feat_common_core)
- Changes name of make_linux_iflags parameter from oflags to iflags.
- Removes roughed out SIGINFO impl.
- Renames plen -> target_len.
- Removes internal fn def for build_blocks and replaces with a call to
chunks from std.
- Renames apply_ct to the more descriptive apply_conversion
- Replaces manual swap steps in perform_swab with call to swap from std.
- Replaces manual solution with chunks where appropriate (in Read, and Write impl).
- Renames xfer -> transfer (in local variable names).
- Improves documentation for dd_filout/dd_stdout issue.
- Removes commented debug_assert statements.
- Modifies ProdUpdate to contain ReadStat and WriteStat rather than
copying their fields.
- Addresses verbose return in `Output<File>::new(...)`
- Resoves compiler warning when built as release when signal handler fails to
register.
- Derives _Default_ trait on ReadStat.
- Adds comments for truncated lines in block unblock tests
- Removes `as u8` in block unblock tests.
- Removes unecessary `#[inline]`
- Delegates multiplier string parsing to uucore::parse_size.
- Renames 'unfailed' -> 'succeeded' for clairity.
- Removes #dead_code warnings. No clippy warnings on my local machine.
- Reworks signal handler to better accomodate platform-specific signals.
- Removes explicit references to "if" and "of" in dd.rs.
- Removes explicit references to "bs", "ibs", "cbs" and "status" in
parseargs.rs.
- Removes `#[allow(deadcode)]` for OFlags, and IFlags.
- Removes spellchecker ignore from all dd files.
- Adds tests for 'traditional' and 'modern' CLI.
- Address Rust fmt issue
- ignores run-without-noatime test which fails on some build machines
- adds cspell:disable to all project files.
- adds .../dd/fixtures/cspell.json to ignore test fixtures.
- Adds cspell.json. Hopefully this will make you happy, spellchecker.
- Removes non-functional spellchecker-ignore tags
- Adds a sleep call to the no noatime test. Some systems were did not notice a changed
atime without the option present.
- Adds a test with a unicode filename.
- Addresses clippy lints and rustfmt issues.
- adds project header to multiple files
- updates spell check skip words
- removes linux only flags direct,noatime from mac_os build
- applies rustfmt to test_dd
- runs rustfmt on test_dd.rs
- eliminates compiler warnings
- adds many words to spellchecker ignore list
- adds sanity test for vexing conv=nocreat issue. Still WIP.
- The dd info page mentions a special fast-read framework if no conv=FLAG is
specified (see bs=N) which I left space for. As it turns out, this is performed already
so it does not need to be implemented.
- Adds print fn's
- Modifies internal fn's as needed to track read/write state
- Modifies status update thread to respect status level
- Adds signal handler for SIGUSR1 (print xfer stats)
- Splits read fn into conv=sync and standard (consecutive)
versions.
- Fixes bug in previous read/fill where short reads would copy to wrong
position in output buffer.
- Fixes bug in unit tests. Empty source would pass (since no bytes
failed to match).
- Adds duplicate dd fn :-( for differentiating between File backed and
non-File outputs.
- Implements cflag=sparse,fsync,fdatasync which were previously blocked.
- Adds plumbing for IFlags & OFlags incl parsing.
- Partial impl for seek=N and skip=N which were previously blocked.
- conv=sparse option requires knowledge of File/Stdout to change
behaviour.
- Unclear how best to impl this.
- Possible option: develop 4 versions of dd<X,Y> for each valid pair of { File, Stdin,
Stdout }.
- Moves all arg parsing & tests to parseargs.rs
- Moves conversion tables to conversion_tables.rs
- Adds ebcdic_lcase and _ucase tables
- Refactors options: This **Breaks Write for Output**
- Adds support for calling dd fn from cl
- Adds basic cl tests from project root
- Adds support for multiplier strings (c, w, b, kB, KB, KiB, ... EB, E,
EiB.
