Implement dd nearing completion

.vscode/cSpell.json

@@ -11,7 +11,7 @@
     { "name": "workspace", "path": "./cspell.dictionaries/workspace.wordlist.txt" }
   ],
   // ignorePaths -  a list of globs to specify which files are to be ignored
-  "ignorePaths": ["Cargo.lock", "target/**", "tests/**/fixtures/**"],
+  "ignorePaths": ["Cargo.lock", "target/**", "tests/**/fixtures/**", "src/uu/dd/test-resources/**"],
   // ignoreWords - a list of words to be ignored (even if they are in the flagWords)
   "ignoreWords": [],
   // words - list of words to be always considered correct

.vscode/cspell.dictionaries/jargon.wordlist.txt

@@ -12,6 +12,7 @@ colorizable
 colorize
 coprime
 consts
+conv
 cyclomatic
 dedup
 deduplication
@@ -23,14 +24,18 @@ dev
 devs
 discoverability
 duplicative
+dsync
 enqueue
 errored
 executable
 executables
 exponentiate
 eval
 falsey
+fileio
 flamegraph
+fullblock
+gibi
 gibibytes
 glob
 globbing
@@ -39,8 +44,12 @@ hardlink
 hardlinks
 hasher
 hashsums
+infile
+iflag
+iflags
 kibi
 kibibytes
+lcase
 mebi
 mebibytes
 mergeable
@@ -49,8 +58,21 @@ microbenchmarks
 microbenchmarking
 multibyte
 multicall
+noatime
+nocache
+nocreat
+noctty
+noerror
+nofollow
+nolinks
+nonblock
 nonportable
 nonprinting
+notrunc
+noxfer
+ofile
+oflag
+oflags
 peekable
 performant
 precompiled
@@ -70,22 +92,27 @@ semiprime
 semiprimes
 shortcode
 shortcodes
+siginfo
+sigusr
 subcommand
 subexpression
 submodule
+sync
 symlink
 symlinks
 syscall
 syscalls
 tokenize
 toolchain
 truthy
+ucase
 unbuffered
 unescape
 unintuitive
 unprefixed
 unportable
 unsync
+urand
 whitespace
 wordlist
 wordlists

Cargo.toml

@@ -45,6 +45,7 @@ feat_common_core = [
     "df",
     "dircolors",
     "dirname",
+    "dd",
     "du",
     "echo",
     "env",
@@ -255,6 +256,7 @@ cp       = { optional=true, version="0.0.7", package="uu_cp", path="src/uu/cp" }
 csplit   = { optional=true, version="0.0.7", package="uu_csplit", path="src/uu/csplit" }
 cut      = { optional=true, version="0.0.7", package="uu_cut", path="src/uu/cut" }
 date     = { optional=true, version="0.0.7", package="uu_date", path="src/uu/date" }
+dd       = { optional=true, version="0.0.7", package="uu_dd", path="src/uu/dd" }
 df       = { optional=true, version="0.0.7", package="uu_df", path="src/uu/df" }
 dircolors= { optional=true, version="0.0.7", package="uu_dircolors", path="src/uu/dircolors" }
 dirname  = { optional=true, version="0.0.7", package="uu_dirname", path="src/uu/dirname" }

README.md

@@ -366,23 +366,23 @@ To contribute to uutils, please see [CONTRIBUTING](CONTRIBUTING.md).
 | Done      | Semi-Done | To Do  |
 |-----------|-----------|--------|
 | arch      | cp        | chcon  |
-| base32    | date      | dd     |
-| base64    | df        | runcon |
-| basename  | expr      | stty   |
-| cat       | install   |        |
-| chgrp     | join      |        |
-| chmod     | ls        |        |
-| chown     | more      |        |
-| chroot    | numfmt    |        |
-| cksum     | od (`--strings` and 128-bit data types missing) | |
-| comm      | pr        |        |
-| csplit    | printf    |        |
-| cut       | sort      |        |
-| dircolors | split     |        |
-| dirname   | tac       |        |
-| du        | tail      |        |
-| echo      | test      |        |
-| env       |           |        |
+| base32    | date      | runcon |
+| base64    | dd        | stty   |
+| basename  | df        |        |
+| cat       | expr      |        |
+| chgrp     | install   |        |
+| chmod     | join      |        |
+| chown     | ls        |        |
+| chroot    | more      |        |
+| cksum     | numfmt    |        |
+| comm      | od (`--strings` and 128-bit data types missing) |
+| csplit    | pr        |        |
+| cut       | printf    |        |
+| dircolors | sort      |        |
+| dirname   | split     |        |
+| du        | tac       |        |
+| echo      | tail      |        |
+| env       | test      |        |
 | expand    |           |        |
 | factor    |           |        |
 | false     |           |        |

src/uu/dd/Cargo.toml

@@ -0,0 +1,31 @@
+[package]
+name = "uu_dd"
+version = "0.0.7"
+authors = ["uutils developers"]
+license = "MIT"
+description = "dd ~ (uutils) copy and convert files"
+
+homepage = "https://github.com/uutils/coreutils"
+repository = "https://github.com/uutils/coreutils/tree/master/src/uu/dd"
+keywords = ["coreutils", "uutils", "cross-platform", "cli", "utility"]
+categories = ["command-line-utilities"]
+edition = "2018"
+
+[lib]
+path = "src/dd.rs"
+
+[dependencies]
+byte-unit = "4.0"
+clap = { version = "2.33", features = [ "wrap_help" ] }
+gcd = "2.0"
+libc = "0.2"
+signal-hook = "0.3.9"
+uucore = { version=">=0.0.8", package="uucore", path="../../uucore" }
+uucore_procs = { version=">=0.0.5", package="uucore_procs", path="../../uucore_procs" }
+
+[dev-dependencies]
+tempfile = "^3"
+
+[[bin]]
+name = "dd"
+path = "src/main.rs"