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Print a message when no lints found #2643

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Aug 5, 2024
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Print a message when no lints found #2643

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f4ceedb
Print a message when no lints found
IndrajeetPatil Aug 4, 2024
223b98e
use info markup
IndrajeetPatil Aug 4, 2024
24f461b
Update NEWS.md
IndrajeetPatil Aug 4, 2024
78939d2
delint
IndrajeetPatil Aug 4, 2024
b0a2423
more inlining
IndrajeetPatil Aug 4, 2024
63b0017
use single if-else
IndrajeetPatil Aug 4, 2024
de94d8f
Create a separate NEWS entry
IndrajeetPatil Aug 5, 2024
b8dfcca
don't install quarto to avoid NOTE
IndrajeetPatil Aug 5, 2024
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2 changes: 1 addition & 1 deletion NEWS.md
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Expand Up @@ -86,7 +86,7 @@

## Notes

* All user-facing messages are now prepared using the `{cli}` package (#2418, @IndrajeetPatil). All messages have been reviewed and updated to be more informative and consistent.
* All user-facing messages are now prepared using the `{cli}` package (#2418, #2643, @IndrajeetPatil). All messages have been reviewed and updated to be more informative and consistent.
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* {lintr} now depends on R version 4.0.0. It already does so implicitly due to recursive upstream dependencies requiring this version; we've simply made that dependency explicit and up-front (#2569, @MichaelChirico).

# lintr 3.1.2
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10 changes: 7 additions & 3 deletions R/methods.R
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Expand Up @@ -101,10 +101,14 @@ print.lints <- function(x, ...) {
if (isTRUE(settings$error_on_lint)) {
quit("no", 31L, FALSE) # nocov
}
} else if (use_rstudio_source_markers) {
# Empty lints: clear RStudio source markers
rstudio_source_markers(x)
} else {
# Empty lints
cli_inform(c(i = "No lints found."))
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@MichaelChirico MichaelChirico Aug 4, 2024 •
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this is a classed signal:

class(tryCatch(cli::cli_inform("xxx"), condition=identity))
# [1] "rlang_message" "message"       "condition"

Is that appropriate? I might have expected just cat() here, I guess {cli} adds nice aesthetics -- are there any analogues for "plain text to terminal"? cli::cli_text(c(i = "No lints found.")) drops the i formatting.

(or perhaps a message is appropriate, WDYT?)

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Message seems ok to me.

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Yes, we could use cat(), but I also think there are benefits to having this as a classed signal over cat() (e.g. the messages will show up in logs).

If we don't want a classed signal, either cli_alert() or its sibling should work:

cli::cli_alert_success("No lints found")
#> ✔ No lints found

class(tryCatch(cli::cli_alert_success("No lints found"), condition=identity))
#> [1] "cli_message" "condition"

Created on 2024-08-05 with reprex v2.1.1

So we can have our pretty aesthetics cake and eat it too.

if (use_rstudio_source_markers) {
rstudio_source_markers(x) # clear RStudio source markers
}
}

invisible(x)
}

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7 changes: 7 additions & 0 deletions tests/testthat/test-methods.R
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Expand Up @@ -96,6 +96,13 @@ test_that("print.lint works", {
expect_output(print(l), " 1:length(x)", fixed = TRUE)
})

test_that("print.lint works with empty lints", {
withr::local_options(list(lintr.rstudio_source_markers = FALSE))
l <- lint(text = "1L")

expect_message(print(l), "No lints found", fixed = TRUE)
})

test_that("print.lint works for inline data, even in RStudio", {
l <- lint("x = 1\n")

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