refactor(truncate): Move to clap

This commit is contained in:
Sylvestre Ledru 2020-10-23 00:33:58 +02:00
parent f888616c0b
commit 8ad2fd3534
3 changed files with 145 additions and 118 deletions

118
Cargo.lock generated
View file

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"checksum rayon-core 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e8c4fec834fb6e6d2dd5eece3c7b432a52f0ba887cf40e595190c4107edc08bf"
"checksum rayon 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8b0d8e0819fadc20c74ea8373106ead0600e3a67ef1fe8da56e39b9ae7275674"
"checksum rayon-core 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9ab346ac5921dc62ffa9f89b7a773907511cdfa5490c572ae9be1be33e8afa4a"
"checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
"checksum redox_syscall 0.1.57 (registry+https://github.com/rust-lang/crates.io-index)" = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
@ -2671,16 +2675,16 @@ dependencies = [
"checksum scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
"checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
"checksum serde 1.0.116 (registry+https://github.com/rust-lang/crates.io-index)" = "96fe57af81d28386a513cbc6858332abc6117cfdb5999647c6444b8f43a370a5"
"checksum serde 1.0.117 (registry+https://github.com/rust-lang/crates.io-index)" = "b88fa983de7720629c9387e9f517353ed404164b1e482c970a90c1a4aaf7dc1a"
"checksum serde_cbor 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1e18acfa2f90e8b735b2836ab8d538de304cbb6729a7360729ea5a895d15a622"
"checksum serde_derive 1.0.116 (registry+https://github.com/rust-lang/crates.io-index)" = "f630a6370fd8e457873b4bd2ffdae75408bc291ba72be773772a4c2a065d9ae8"
"checksum serde_derive 1.0.117 (registry+https://github.com/rust-lang/crates.io-index)" = "cbd1ae72adb44aab48f325a02444a5fc079349a8d804c1fc922aed3f7454c74e"
"checksum serde_json 1.0.59 (registry+https://github.com/rust-lang/crates.io-index)" = "dcac07dbffa1c65e7f816ab9eba78eb142c6d44410f4eeba1e26e4f5dfa56b95"
"checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
"checksum sha2 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7d963c78ce367df26d7ea8b8cc655c651b42e8a1e584e869c1e17dae3ccb116a"
"checksum sha3 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "26405905b6a56a94c60109cfda62610507ac14a65be531f5767dec5c5a8dd6a0"
"checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
"checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
"checksum syn 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)" = "e03e57e4fcbfe7749842d53e24ccb9aa12b7252dbe5e91d2acad31834c8b8fdd"
"checksum syn 1.0.46 (registry+https://github.com/rust-lang/crates.io-index)" = "5ad5de3220ea04da322618ded2c42233d02baca219d6f160a3e9c87cda16c942"
"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
"checksum synstructure 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3a761d12e6d8dcb4dcf952a7a89b475e3a9d69e4a69307e01a470977642914bd"
"checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"

View file

@ -15,7 +15,7 @@ edition = "2018"
path = "src/truncate.rs"
[dependencies]
getopts = "0.2.18"
clap = "2.33"
uucore = { version="0.0.4", package="uucore", git="https://github.com/uutils/uucore.git", branch="canary" }
uucore_procs = { version="0.0.4", package="uucore_procs", git="https://github.com/uutils/uucore.git", branch="canary" }

View file

@ -7,11 +7,12 @@
// spell-checker:ignore (ToDO) RFILE refsize rfilename fsize tsize
extern crate getopts;
extern crate clap;
#[macro_use]
extern crate uucore;
use clap::{App, Arg};
use std::fs::{metadata, File, OpenOptions};
use std::io::Result;
use std::path::Path;
@ -27,78 +28,100 @@ enum TruncateMode {
RoundUp,
}
static NAME: &str = "truncate";
static ABOUT: &str = "Shrink or extend the size of each file to the specified size.";
static VERSION: &str = env!("CARGO_PKG_VERSION");
static OPT_NO_CREATE: &str = "no-create";
static OPT_REFERENCE: &str = "reference";
static OPT_IO_BLOCKS: &str = "io-blocks";
static OPT_SIZE: &str = "size";
static OPT_FILES: &str = "files";
fn get_usage() -> String {
format!("{0} [OPTION]... [FILE]...", executable!())
}
fn get_long_usage() -> String {
format!(
"
SIZE is an integer with an optional prefix and optional unit.
The available units (K, M, G, T, P, E, Z, and Y) use the following format:
'KB' => 1000 (kilobytes)
'K' => 1024 (kibibytes)
'MB' => 1000*1000 (megabytes)
'M' => 1024*1024 (mebibytes)
'GB' => 1000*1000*1000 (gigabytes)
'G' => 1024*1024*1024 (gibibytes)
SIZE may also be prefixed by one of the following to adjust the size of each
file based on its current size:
'+' => extend by
'-' => reduce by
'<' => at most
'>' => at least
'/' => round down to multiple of
'%' => round up to multiple of"
)
}
pub fn uumain(args: impl uucore::Args) -> i32 {
/*
let args = args.collect_str();
let mut opts = getopts::Options::new();
let mut opts = getopts::Options::new();*/
let usage = get_usage();
let long_usage = get_long_usage();
opts.optflag("c", "no-create", "do not create files that do not exist");
opts.optflag(
"o",
"io-blocks",
"treat SIZE as the number of I/O blocks of the file rather than bytes (NOT IMPLEMENTED)",
);
opts.optopt(
"r",
"reference",
"base the size of each file on the size of RFILE",
"RFILE",
);
opts.optopt("s", "size", "set or adjust the size of each file according to SIZE, which is in bytes unless --io-blocks is specified", "SIZE");
opts.optflag("h", "help", "display this help and exit");
opts.optflag("V", "version", "output version information and exit");
let matches = App::new(executable!())
.version(VERSION)
.about(ABOUT)
.usage(&usage[..])
.after_help(&long_usage[..])
.arg(
Arg::with_name(OPT_NO_CREATE)
.short("c")
.long(OPT_NO_CREATE)
.help("do not create files that do not exist")
)
.arg(
Arg::with_name(OPT_IO_BLOCKS)
.short("o")
.long(OPT_IO_BLOCKS)
.help("treat SIZE as the number of I/O blocks of the file rather than bytes (NOT IMPLEMENTED)")
)
.arg(
Arg::with_name(OPT_REFERENCE)
.short("r")
.long(OPT_REFERENCE)
.help("base the size of each file on the size of RFILE")
.value_name("RFILE")
)
.arg(
Arg::with_name(OPT_SIZE)
.short("s")
.long("size")
.help("set or adjust the size of each file according to SIZE, which is in bytes unless --io-blocks is specified")
.value_name("SIZE")
)
.arg(Arg::with_name(OPT_FILES).multiple(true).takes_value(true).min_values(1))
.get_matches_from(args);
let matches = match opts.parse(&args[1..]) {
Ok(m) => m,
Err(f) => crash!(1, "{}", f),
};
let files: Vec<String> = matches
.values_of(OPT_FILES)
.map(|v| v.map(ToString::to_string).collect())
.unwrap_or_default();
if matches.opt_present("help") {
println!("{} {}", NAME, VERSION);
println!();
println!("Usage:");
println!(" {} [OPTION]... FILE...", NAME);
println!();
print!(
"{}",
opts.usage("Shrink or extend the size of each file to the specified size.")
);
println!(
"
SIZE is an integer with an optional prefix and optional unit.
The available units (K, M, G, T, P, E, Z, and Y) use the following format:
'KB' => 1000 (kilobytes)
'K' => 1024 (kibibytes)
'MB' => 1000*1000 (megabytes)
'M' => 1024*1024 (mebibytes)
'GB' => 1000*1000*1000 (gigabytes)
'G' => 1024*1024*1024 (gibibytes)
SIZE may also be prefixed by one of the following to adjust the size of each
file based on its current size:
'+' => extend by
'-' => reduce by
'<' => at most
'>' => at least
'/' => round down to multiple of
'%' => round up to multiple of"
);
} else if matches.opt_present("version") {
println!("{} {}", NAME, VERSION);
} else if matches.free.is_empty() {
show_error!("missing an argument");
if files.is_empty() {
show_error!("Missing an argument");
return 1;
} else {
let no_create = matches.opt_present("no-create");
let io_blocks = matches.opt_present("io-blocks");
let reference = matches.opt_str("reference");
let size = matches.opt_str("size");
let no_create = matches.is_present(OPT_NO_CREATE);
let io_blocks = matches.is_present(OPT_IO_BLOCKS);
let reference = matches.value_of(OPT_REFERENCE).map(String::from);
let size = matches.value_of(OPT_SIZE).map(String::from);
if reference.is_none() && size.is_none() {
crash!(1, "you must specify either --reference or --size");
} else {
match truncate(no_create, io_blocks, reference, size, matches.free) {
match truncate(no_create, io_blocks, reference, size, files) {
Ok(()) => ( /* pass */ ),
Err(_) => return 1,
}