on Windows, we may need to encode the stdout of system2() as UTF-8 to…

… correctly get the path of the newly created post file

this should fix the problem reported at https://d.cosx.org/d/422702

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: blogdown
 Type: Package
 Title: Create Blogs and Websites with R Markdown
-Version: 1.5.3
+Version: 1.5.4
 Authors@R: c(
     person("Yihui", "Xie", role = c("aut", "cre"), email = "[email protected]", comment = c(ORCID = "0000-0003-0645-5666")),
     person("Christophe", "Dervieux", role = "aut", email = "[email protected]", comment = c(ORCID = "0000-0003-4474-2498")),

NEWS.md

@@ -20,6 +20,8 @@
 
 - `install_hugo()` stopped working with Hugo v0.89.0 (thanks, @martinolmos, #664).
 
+- On Windows, `new_post()` may fail to open the new post if the filename contains multibyte characters (thanks, yingjie, https://d.cosx.org/d/422702).
+
 # CHANGES IN blogdown VERSION 1.5
 
 ## NEW FEATURES

R/hugo.R

@@ -506,8 +506,10 @@ new_content = function(path, kind = '', open = interactive()) {
     stdout = TRUE
   )
   if (length(i <- grep(r <- ' created$', file2)) == 1) {
-    file2 = sub(r, '', file2[i])
+    file2 = sub(r, '', file2[i], useBytes = TRUE)
     if (!grepl('[.]md$', file2)) file2 = file.path(file2, 'index.md')
+    # on Windows, we may need to encode the stdout of system2() as UTF-8
+    if (!file_exists(file2)) Encoding(file2) = 'UTF-8'
   } else {
     # should the above method fail to identify the newly created .md, search for
     # the new file with brute force