mirror of
https://github.com/uutils/coreutils
synced 2024-07-23 10:54:14 +00:00
uniq: implement group option
This commit is contained in:
Chirag Jadwani
parent
20d071a482
commit
19c6a42de5
35
Cargo.lock
generated
35
Cargo.lock
generated
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@ -650,6 +650,15 @@ version = "1.7.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "62aca2aba2d62b4a7f5b33f3712cb1b0692779a56fb510499d5c0aa594daeaf3"
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[[package]]
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name = "heck"
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version = "0.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "87cbf45460356b7deeb5e3415b5563308c0a9b057c85e12b06ad551f98d0a6ac"
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dependencies = [
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"unicode-segmentation",
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]
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[[package]]
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name = "hermit-abi"
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version = "0.1.18"
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@ -1352,6 +1361,24 @@ version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
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[[package]]
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name = "strum"
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version = "0.20.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7318c509b5ba57f18533982607f24070a55d353e90d4cae30c467cdb2ad5ac5c"
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[[package]]
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name = "strum_macros"
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version = "0.20.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ee8bc6b87a5112aeeab1f4a9f7ab634fe6cbefc4850006df31267f4cfb9e3149"
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dependencies = [
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"heck",
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"proc-macro2",
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"quote 1.0.9",
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"syn",
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]
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[[package]]
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name = "syn"
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version = "1.0.68"
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@ -1499,6 +1526,12 @@ version = "1.13.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "879f6906492a7cd215bfa4cf595b600146ccfac0c79bcbd1f3000162af5e8b06"
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[[package]]
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name = "unicode-segmentation"
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version = "1.7.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bb0d2e7be6ae3a5fa87eed5fb451aff96f2573d2694942e40543ae0bbe19c796"
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[[package]]
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name = "unicode-width"
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version = "0.1.8"
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@ -2455,6 +2488,8 @@ name = "uu_uniq"
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version = "0.0.6"
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dependencies = [
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"clap",
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"strum",
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"strum_macros",
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"uucore",
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"uucore_procs",
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]
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@ -16,6 +16,8 @@ path = "src/uniq.rs"
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[dependencies]
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clap = "2.33"
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strum = "0.20"
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strum_macros = "0.20"
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uucore = { version=">=0.0.8", package="uucore", path="../../uucore" }
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uucore_procs = { version=">=0.0.5", package="uucore_procs", path="../../uucore_procs" }
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@ -13,6 +13,7 @@ use std::fs::File;
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use std::io::{stdin, stdout, BufRead, BufReader, BufWriter, Read, Result, Write};
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use std::path::Path;
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use std::str::FromStr;
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use strum_macros::{AsRefStr, EnumString};
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static ABOUT: &str = "Report or omit repeated lines.";
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static VERSION: &str = env!("CARGO_PKG_VERSION");
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@ -26,14 +27,18 @@ pub mod options {
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pub static SKIP_CHARS: &str = "skip-chars";
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pub static UNIQUE: &str = "unique";
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pub static ZERO_TERMINATED: &str = "zero-terminated";
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pub static GROUP: &str = "group";
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}
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static ARG_FILES: &str = "files";
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#[derive(PartialEq)]
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#[derive(PartialEq, Clone, Copy, AsRefStr, EnumString)]
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#[strum(serialize_all = "snake_case")]
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enum Delimiters {
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Append,
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Prepend,
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Separate,
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Both,
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None,
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}
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@ -58,22 +63,33 @@ impl Uniq {
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) {
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let mut lines: Vec<String> = vec![];
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let mut first_line_printed = false;
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let delimiters = &self.delimiters;
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let delimiters = self.delimiters;
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let line_terminator = self.get_line_terminator();
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// Don't print any delimiting lines before, after or between groups if delimiting method is 'none'
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let no_delimiters = delimiters == Delimiters::None;
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// The 'prepend' and 'both' delimit methods will cause output to start with delimiter line
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let prepend_delimiter = delimiters == Delimiters::Prepend || delimiters == Delimiters::Both;
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// The 'append' and 'both' delimit methods will cause output to end with delimiter line
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let append_delimiter = delimiters == Delimiters::Append || delimiters == Delimiters::Both;
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for line in reader.split(line_terminator).map(get_line_string) {
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if !lines.is_empty() && self.cmp_keys(&lines[0], &line) {
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let print_delimiter = delimiters == &Delimiters::Prepend
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|| (delimiters == &Delimiters::Separate && first_line_printed);
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// Print delimiter if delimit method is not 'none' and any line has been output
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// before or if we need to start output with delimiter
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let print_delimiter = !no_delimiters && (prepend_delimiter || first_line_printed);
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first_line_printed |= self.print_lines(writer, &lines, print_delimiter);
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lines.truncate(0);
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}
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lines.push(line);
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}
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if !lines.is_empty() {
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let print_delimiter = delimiters == &Delimiters::Prepend
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|| (delimiters == &Delimiters::Separate && first_line_printed);
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self.print_lines(writer, &lines, print_delimiter);
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// Print delimiter if delimit method is not 'none' and any line has been output
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// before or if we need to start output with delimiter
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let print_delimiter = !no_delimiters && (prepend_delimiter || first_line_printed);
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first_line_printed |= self.print_lines(writer, &lines, print_delimiter);
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}
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if append_delimiter && first_line_printed {
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crash_if_err!(1, writer.write_all(&[line_terminator]));
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}
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}
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@ -233,10 +249,30 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
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Arg::with_name(options::ALL_REPEATED)
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.short("D")
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.long(options::ALL_REPEATED)
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.possible_values(&["none", "prepend", "separate"])
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.help("print all duplicate lines. Delimiting is done with blank lines")
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.possible_values(&[
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Delimiters::None.as_ref(), Delimiters::Prepend.as_ref(), Delimiters::Separate.as_ref()
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])
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.help("print all duplicate lines. Delimiting is done with blank lines. [default: none]")
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.value_name("delimit-method")
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.default_value("none"),
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.min_values(0)
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.max_values(1),
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)
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.arg(
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Arg::with_name(options::GROUP)
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.long(options::GROUP)
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.possible_values(&[
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Delimiters::Separate.as_ref(), Delimiters::Prepend.as_ref(),
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Delimiters::Append.as_ref(), Delimiters::Both.as_ref()
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])
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.help("show all items, separating groups with an empty line. [default: separate]")
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.value_name("group-method")
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.min_values(0)
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.max_values(1)
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.conflicts_with_all(&[
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options::REPEATED,
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options::ALL_REPEATED,
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options::UNIQUE,
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]),
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)
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.arg(
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Arg::with_name(options::CHECK_CHARS)
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@ -314,17 +350,11 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
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let uniq = Uniq {
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repeats_only: matches.is_present(options::REPEATED)
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|| matches.occurrences_of(options::ALL_REPEATED) > 0,
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|| matches.is_present(options::ALL_REPEATED),
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uniques_only: matches.is_present(options::UNIQUE),
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all_repeated: matches.occurrences_of(options::ALL_REPEATED) > 0,
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delimiters: match matches.value_of(options::ALL_REPEATED).map(String::from) {
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Some(ref opt_arg) if opt_arg != "none" => match &(*opt_arg.as_str()) {
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"prepend" => Delimiters::Prepend,
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"separate" => Delimiters::Separate,
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_ => crash!(1, "Incorrect argument for all-repeated: {}", opt_arg),
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},
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_ => Delimiters::None,
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},
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all_repeated: matches.is_present(options::ALL_REPEATED)
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|| matches.is_present(options::GROUP),
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delimiters: get_delimiter(&matches),
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show_counts: matches.is_present(options::COUNT),
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skip_fields: opt_parsed(options::SKIP_FIELDS, &matches),
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slice_start: opt_parsed(options::SKIP_CHARS, &matches),
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@ -340,6 +370,19 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
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0
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}
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fn get_delimiter(matches: &ArgMatches) -> Delimiters {
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let value = matches
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.value_of(options::ALL_REPEATED)
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.or_else(|| matches.value_of(options::GROUP));
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if let Some(delimiter_arg) = value {
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crash_if_err!(1, Delimiters::from_str(delimiter_arg))
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} else if matches.is_present(options::GROUP) {
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Delimiters::Separate
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} else {
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Delimiters::None
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}
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}
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fn open_input_file(in_file_name: String) -> BufReader<Box<dyn Read + 'static>> {
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let in_file = if in_file_name == "-" {
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Box::new(stdin()) as Box<dyn Read>
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@ -147,3 +147,48 @@ fn test_invalid_utf8() {
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.failure()
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.stderr_only("uniq: error: invalid utf-8 sequence of 1 bytes from index 0");
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}
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#[test]
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fn test_group() {
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new_ucmd!()
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.args(&["--group"])
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.pipe_in_fixture(INPUT)
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.run()
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.stdout_is_fixture("group.expected");
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}
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#[test]
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fn test_group_prepend() {
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new_ucmd!()
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.args(&["--group=prepend"])
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.pipe_in_fixture(INPUT)
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.run()
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.stdout_is_fixture("group-prepend.expected");
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}
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#[test]
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fn test_group_append() {
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new_ucmd!()
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.args(&["--group=append"])
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.pipe_in_fixture(INPUT)
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.run()
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.stdout_is_fixture("group-append.expected");
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}
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#[test]
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fn test_group_both() {
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new_ucmd!()
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.args(&["--group=both"])
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.pipe_in_fixture(INPUT)
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.run()
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.stdout_is_fixture("group-both.expected");
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}
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#[test]
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fn test_group_separate() {
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new_ucmd!()
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.args(&["--group=separate"])
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.pipe_in_fixture(INPUT)
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.run()
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.stdout_is_fixture("group.expected");
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}
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26
tests/fixtures/uniq/group-append.expected
vendored
Normal file
26
tests/fixtures/uniq/group-append.expected
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Normal file
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@ -0,0 +1,26 @@
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aaaaa ⅰ
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bbbbb ⅱ
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bbbbb ⅱ
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ccccc ⅲ
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ccccc ⅲ
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ccccc ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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eeeee ⅲ
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fffff ⅲ
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fffff ⅲ
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ggggg ⅲ
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ggggg ⅲ
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ggggg ⅲ
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GGGGG ⅲ
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GGGGG ⅲ
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27
tests/fixtures/uniq/group-both.expected
vendored
Normal file
27
tests/fixtures/uniq/group-both.expected
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Normal file
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@ -0,0 +1,27 @@
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aaaaa ⅰ
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bbbbb ⅱ
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bbbbb ⅱ
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ccccc ⅲ
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ccccc ⅲ
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ccccc ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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eeeee ⅲ
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fffff ⅲ
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fffff ⅲ
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ggggg ⅲ
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ggggg ⅲ
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ggggg ⅲ
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GGGGG ⅲ
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GGGGG ⅲ
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26
tests/fixtures/uniq/group-prepend.expected
vendored
Normal file
26
tests/fixtures/uniq/group-prepend.expected
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Normal file
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@ -0,0 +1,26 @@
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aaaaa ⅰ
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bbbbb ⅱ
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bbbbb ⅱ
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ccccc ⅲ
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ccccc ⅲ
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ccccc ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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eeeee ⅲ
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fffff ⅲ
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fffff ⅲ
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ggggg ⅲ
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ggggg ⅲ
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ggggg ⅲ
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GGGGG ⅲ
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GGGGG ⅲ
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25
tests/fixtures/uniq/group.expected
vendored
Normal file
25
tests/fixtures/uniq/group.expected
vendored
Normal file
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@ -0,0 +1,25 @@
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aaaaa ⅰ
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bbbbb ⅱ
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bbbbb ⅱ
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ccccc ⅲ
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ccccc ⅲ
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ccccc ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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ddddd ⅲ
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eeeee ⅲ
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fffff ⅲ
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fffff ⅲ
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ggggg ⅲ
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ggggg ⅲ
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ggggg ⅲ
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GGGGG ⅲ
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GGGGG ⅲ
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