Ripgrep: line number disappear when piping command

[timotheecour]

not sure whether it's a regression, don't remember seeing that before upgrading to ripgrep 0.8.0

What version of ripgrep are you using?

ripgrep 0.8.0 (rev )
-SIMD -AVX

What operating system are you using ripgrep on?

osx

Describe your question, feature request, or bug.

rg --no-heading packages

source/dubregistry/web.d:563:   @auth @path("/my_packages/:packname/set_categories")
source/dubregistry/web.d:581:           redirect("/my_packages/"~_packname);
source/dubregistry/web.d:584:   @auth @path("/my_packages/:packname/set_repository") @errorDisplay!getMyPackagesPackage
source/dubregistry/web.d:595:           redirect("/my_packages/"~_packname);
source/dubregistry/registry.d:43:               // list of packages whose statistics need to be updated
source/dubregistry/registry.d:294:              // update stat distributions before score packages

rg --no-heading packages|cat

source/dubregistry/mirror.d:    enum urls = ["packages/index.json", "api/packages/search?q=foobar"];
source/dubregistry/mirror.d:            auto packs = requestHTTP(url ~ Path("api/packages/dump")).readJson().deserializeJson!(DbPackage[]);
source/dubregistry/mirror.d:            // first, remove all packages that don't exist anymore to avoid possible name conflicts
source/dubregistry/mirror.d:            // then add/update all existing packages
source/dubregistry/mirror.d:            logError("Fetching updated packages failed: %s", e.msg);
source/dubregistry/registry.d:          // list of packages whose statistics need to be updated
source/dubregistry/registry.d:          // update stat distributions before score packages
source/dubregistry/registry.d:                  "Published packages must contain \"description\" and \"license\" fields.");
source/dubregistry/registry.d:  /// Using monthly downloads to penalize stale packages, logarithm to

shows no line numbers

[BurntSushi]

This has been the behavior of ripgrep since the 0.1.0 release. You can see the logic for determining whether line numbers are enabled here.

[henrywallace]

One can achieve slightly similar behavior by doing

$(output) | cat -n | rg PAT

...And I also see now that one can just use the rg -n flag, too.

[timotheecour]

likewise --column will also force show line+column even with piping