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cli: add --stop-on-nonmatch flag

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This causes ripgrep to stop searching an individual file after it has
found a non-matching line. But this only occurs after it has found a
matching line.

Fixes #1790, Closes #1930
This commit is contained in:
Edoardo Pirovano
2021-07-07 17:50:23 +01:00
committed by Andrew Gallant
parent 4782ebd5e0
commit 6d95c130d5
7 changed files with 99 additions and 12 deletions
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25
crates/core/app.rs
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@ -632,6 +632,7 @@ pub fn all_args_and_flags() -> Vec<RGArg> {
flag_sort(&mut args);
flag_sortr(&mut args);
flag_stats(&mut args);
flag_stop_on_nonmatch(&mut args);
flag_text(&mut args);
flag_threads(&mut args);
flag_trim(&mut args);
@ -1926,13 +1927,16 @@ Nevertheless, if you only care about matches spanning at most one line, then it
is always better to disable multiline mode.
This flag can be disabled with --no-multiline.
This overrides the --stop-on-nonmatch flag.
"
);
let arg = RGArg::switch("multiline")
.short("U")
.help(SHORT)
.long_help(LONG)
.overrides("no-multiline");
.overrides("no-multiline")
.overrides("stop-on-nonmatch");
args.push(arg);
let arg = RGArg::switch("no-multiline").hidden().overrides("multiline");
@ -2854,6 +2858,25 @@ This flag can be disabled with --no-stats.
args.push(arg);
}
fn flag_stop_on_nonmatch(args: &mut Vec<RGArg>) {
const SHORT: &str = "Stop searching after a non-match.";
const LONG: &str = long!(
"\
Enabling this option will cause ripgrep to stop reading a file once it
encounters a non-matching line after it has encountered a matching line.
This is useful if it is expected that all matches in a given file will be on
sequential lines, for example due to the lines being sorted.
This overrides the -U/--multiline flag.
"
);
let arg = RGArg::switch("stop-on-nonmatch")
.help(SHORT)
.long_help(LONG)
.overrides("multiline");
args.push(arg);
}
fn flag_text(args: &mut Vec<RGArg>) {
const SHORT: &str = "Search binary files as if they were text.";
const LONG: &str = long!(