`quarto_inspect()` should forward error message

[salim-b]

Currently, quarto_inspect() does not forward the error message when it fails:

Sys.setenv(NO_COLOR = "1")

# create new quarto book project
path_tmp <- tempdir()
path_tmp_proj <- file.path(path_tmp, "test")

quarto::quarto_create_project(name = "test",
                              type = "book",
                              dir = path_tmp,
                              no_prompt = TRUE)
#> WARN: No 'title' for project provided in `quarto create project`. Using 'test' as default.
#> Creating project at /tmp/Rtmpin5zHs/test:
#>   - Created _quarto.yml
#>   - Created index.qmd
#>   - Created intro.qmd
#>   - Created summary.qmd
#>   - Created references.qmd
#>   - Created cover.png
#>   - Created references.bib

# quarto inspect runs successfully
quarto::quarto_inspect(input = path_tmp_proj) |> is.list()
#> [1] TRUE

# rename intro chpt file to trigger error
file.rename(from = file.path(path_tmp_proj, "intro.qmd"),
            to = file.path(path_tmp_proj, "no_intro.qmd"))
#> [1] TRUE

# now quarto inspect fails – without forwarding the error
quarto::quarto_inspect(input = path_tmp_proj)
#> Error in `quarto::quarto_inspect()`:
#> ✖ Error running quarto cli.
#> Caused by error:
#> ! System command 'quarto' failed

^{Created on 2025-04-29 with reprex v2.1.1}

The error message emitted by the underlying quarto inspect is the following in the above case:

$ quarto inspect /tmp/Rtmpin5zHs/test
ERROR: Book chapter 'intro.qmd' not found

Stack trace:
    at throwInputNotFound (file:///opt/quarto/bin/quarto.js:100761:19)
    at findInputs (file:///opt/quarto/bin/quarto.js:100792:17)
    at eventLoopTick (ext:core/01_core.js:175:7)
    at async findChapters (file:///opt/quarto/bin/quarto.js:100804:13)
    at async bookRenderItems (file:///opt/quarto/bin/quarto.js:100807:5)
    at async Object.bookProjectConfig [as config] (file:///opt/quarto/bin/quarto.js:100712:25)
    at async projectContext (file:///opt/quarto/bin/quarto.js:82390:38)
    at async inspectConfig (file:///opt/quarto/bin/quarto.js:110378:21)
    at async Command.actionHandler (file:///opt/quarto/bin/quarto.js:110497:20)
    at async Command.execute (file:///opt/quarto/bin/quarto.js:8253:13)

ERROR: Book chapter 'intro.qmd' not found immediately indicates what's the problem, so we should really forward it.

[cderv]

Thanks. I think this is a problem with quarto_run(). I need to get the process error message and add it to what is shown... 🤔

I wonder why I missed that. Thanks for the report.