fix #804: use xfun::file_rename() because file.rename() would fail to…

… rename files across different disk volumes (#1476)

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: bookdown
 Type: Package
 Title: Authoring Books and Technical Documents with R Markdown
-Version: 0.40.1
+Version: 0.40.2
 Authors@R: c(
     person("Yihui", "Xie", role = c("aut", "cre"), email = "[email protected]", comment = c(ORCID = "0000-0003-0645-5666")),
     person("Christophe", "Dervieux", , "[email protected]", role = c("ctb"),
@@ -65,7 +65,7 @@ Imports:
     knitr (>= 1.38),
     rmarkdown (>= 2.14),
     jquerylib,
-    xfun (>= 0.39),
+    xfun (>= 0.47.12),
     tinytex (>= 0.12),
     yaml (>= 2.1.19)
 Suggests:
@@ -94,3 +94,4 @@ Config/Needs/book: remotes, webshot, svglite
 Config/Needs/website: pkgdown, tidyverse/tidytemplate, rstudio/quillt
 Config/testthat/edition: 3
 VignetteBuilder: knitr
+Remotes: yihui/xfun

NAMESPACE

@@ -43,6 +43,7 @@ import(utils)
 importFrom(xfun,dir_create)
 importFrom(xfun,dir_exists)
 importFrom(xfun,existing_files)
+importFrom(xfun,file_rename)
 importFrom(xfun,in_dir)
 importFrom(xfun,read_utf8)
 importFrom(xfun,same_path)

NEWS.md

@@ -5,6 +5,8 @@
   - If set to `TeX-AMS-MML_HTMLorMML` renders equations in HTML + CSS (which may look nicer for some equations).
   - If set to `TeX-MML-AM_SVG` renders equations in SVG.
 
+- Fixed the bug that `render_book()` fails due to `file.rename()` being unable to rename files across different disk volumes (thanks, @Giqles @katrinabrock, #804).
+
 # CHANGES IN bookdown VERSION 0.40
 
 - Footnotes are not rendered correctly when `katex` is used to render LaTeX math expressions (thanks, @pbreheny, #1470).

R/bookdown-package.R

@@ -6,6 +6,6 @@
 "_PACKAGE"
 
 ## usethis namespace: start
-#' @importFrom xfun dir_create dir_exists
+#' @importFrom xfun dir_create dir_exists file_rename
 ## usethis namespace: end
 NULL

R/ebook.R

@@ -76,7 +76,7 @@ epub_book = function(
 move_output = function(output) {
   if (is.null(opts$get('output_dir'))) return(output)
   output2 = output_path(output)
-  file.rename(output, output2)
+  file_rename(output, output2)
   output2
 }
 

R/html.R

@@ -534,7 +534,7 @@ clean_html_tags = function(x) {
 move_to_output_dir = function(files) {
   files2 = output_path(files)
   i = file.exists(files) & (files != files2)
-  file.rename(files[i], files2[i])
+  file_rename(files[i], files2[i])
   files2
 }
 

R/latex.R

@@ -75,8 +75,8 @@ pdf_book = function(
     if (is.null(o)) return(output)
 
     output2 = file.path(o, output)
-    file.rename(output, output2)
-    if (keep_tex) file.rename(f, file.path(o, f))
+    file_rename(output, output2)
+    if (keep_tex) file_rename(f, file.path(o, f))
     output2
   }
   # always enable tables (use packages booktabs, longtable, ...)

R/render.R

@@ -121,12 +121,12 @@ render_book = function(
   aux_diro = '_bookdown_files'
   # move _files and _cache from _bookdown_files to ./, then from ./ to _bookdown_files
   aux_dirs = files_cache_dirs(aux_diro)
-  move_dirs(aux_dirs, basename(aux_dirs))
+  file_rename(aux_dirs, basename(aux_dirs))
   on.exit({
     aux_dirs = files_cache_dirs('.')
     if (length(aux_dirs)) {
       dir_create(aux_diro)
-      move_dirs(aux_dirs, file.path(aux_diro, basename(aux_dirs)))
+      file_rename(aux_dirs, file.path(aux_diro, basename(aux_dirs)))
     }
   }, add = TRUE)
 
@@ -215,7 +215,7 @@ render_new_session = function(files, main, config, output_format, clean, envir,
 
   meta = clean_meta(render_meta, files)
   move = !(unlist(meta) %in% files)  # do not move input files to output dir
-  on.exit(file.rename(unlist(meta)[move], files_md[move]), add = TRUE)
+  on.exit(file_rename(unlist(meta)[move], files_md[move]), add = TRUE)
 
   merge_chapters(unlist(meta), main, orig = files)
 

R/skeleton.R

@@ -20,7 +20,7 @@ bookdown_skeleton = function(path, output_format = skeleton_formats()) {
   skeleton_build_index(path, output_format)
   skeleton_build_output_yml(path, output_format)
   skeleton_build_bookdown_yml(path, output_format)
-  move_dir(file.path(path, output_format), path) # move left format files
+  file_rename(file.path(path, output_format), path) # move left format files
   skeleton_remove_blocks(path, output_format)
 
   # Get missing assets

R/utils.R

@@ -457,19 +457,6 @@ files_cache_dirs = function(dir = '.') {
   out
 }
 
-# file.rename() does not work if target directory is not empty, so we just copy
-# everything from `from` to `to`, and delete `from`
-move_dir = function(from, to) {
-  if (!dir_exists(to)) return(file.rename(from, to))
-  to_copy = list.files(from, full.names = TRUE)
-  if (length(to_copy) == 0 ||
-      any(file.copy(list.files(from, full.names = TRUE), to, recursive = TRUE))
-  ) unlink(from, recursive = TRUE)
-  invisible(TRUE)
-}
-
-move_dirs = function(from, to) mapply(move_dir, from, to)
-
 #' @importFrom xfun existing_files
 existing_r = function(base) {
   x = apply(expand.grid(base, c('R', 'r')), 1, paste, collapse = '.')

inst/scripts/render_one.R

@@ -14,7 +14,7 @@ local({
 
   out_expected = xfun::with_ext(args[1], '.md')
   if (out != out_expected) {
-    file.rename(out, out_expected)
+    file_rename(out, out_expected)
     attributes(out_expected) = attributes(out)
     out = out_expected
   }

tests/testit/test-utils.R

@@ -165,27 +165,3 @@ assert('fence_theorems() converts the knitr engine syntax to fenced Divs', {
   res = fence_theorems(text = old)
   (unclass(res) %==% old)
 })
-
-assert("move_dir works", {
-  # work in temp dir
-  dir.create(tmp_dir <- tempfile())
-  owd = setwd(tmp_dir)
-
-  # empty dir is not moved but deleted
-  dir.create("dest")
-  dir.create("empty")
-  move_dir("empty", "dest")
-  (dir.exists("empty") %==% FALSE)
-
-  # files are moved correctly
-  dir.create("filled")
-  dummy_files = c("dummy1", "dummy2")
-  file.create(file.path("filled", dummy_files))
-  move_dir("filled", "dest")
-  (dir.exists("filled") %==% FALSE)
-  (list.files("dest") %==% dummy_files)
-
-  # remove temp dir
-  setwd(owd)
-  unlink(tmp_dir, recursive = TRUE)
-})