fix rstudio/tinytex#435: adjust PATH temporarily for pdf_crop() to be…

… able to find the command `pdfcrop` from TinyTeX

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: knitr
 Type: Package
 Title: A General-Purpose Package for Dynamic Report Generation in R
-Version: 1.45.12
+Version: 1.45.13
 Authors@R: c(
     person("Yihui", "Xie", role = c("aut", "cre"), email = "[email protected]", comment = c(ORCID = "0000-0003-0645-5666")),
     person("Abhraneel", "Sarma", role = "ctb"),

NEWS.md

@@ -22,6 +22,8 @@
 
 - `include_graphics()` may provide an incorrect plot width to LaTeX when the locale setting for `LC_NUMERIC` is not `C` because the decimal separator may not be a dot (thanks, @tdhock, rstudio/rmarkdown#2525).
 
+- When TinyTeX and the LaTeX package **pdfcrop** are installed, `knitr::pdf_crop()` is unable to find `pdfcrop` (thanks, @dmkaplan2000, rstudio/tinytex#435).
+
 ## MAJOR CHANGES
 
 - Unbalanced chunk delimiters (fences) in R Markdown documents are no longer allowed, as announced two years ago at <https://yihui.org/en/2021/10/unbalanced-delimiters/> (#2306). This means the opening delimiter must strictly match the closing delimiter, e.g., if a code chunk starts with four backticks, it must also end with four; or if a chunk header is indented by two spaces, the closing fence must be indented by exactly two spaces. For authors who cannot update their R Markdown documents for any reason at the moment, setting `options(knitr.unbalanced.chunk = TRUE)` (e.g., in `.Rprofile`) can temporarily prevent **knitr** from throwing an error, but it is strongly recommended that you fix the problems as soon as possible, because this workaround will be removed in future.

R/plot.R

@@ -373,6 +373,7 @@ plot_crop = function(x, quiet = TRUE) {
   is_pdf = grepl('[.]pdf$', x, ignore.case = TRUE)
   x2 = x
   x = path.expand(x)
+  tinytex:::tweak_path()  # in case TinyTeX is installed but not on PATH
   if (is_pdf && !has_utility('pdfcrop')) return(x2)
 
   if (!quiet) message('cropping ', x)