PPT fails if using --reference-doc along with intermediate_dir

[slopp]

To reproduce, use the following command with the attached RMD:

rmarkdown::render('r4ds.Rmd', intermediates_dir = 'tmp')

This fails with:

/usr/local/bin/pandoc +RTS -K512m -RTS /home/sean/rmd2ppt/06-r4ds/tmp/r4ds.utf8.md --to pptx --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash+smart --output r4ds.pptx --reference-doc=./rstudio.pptx 
pandoc: ./rstudio.pptx: openBinaryFile: does not exist (No such file or directory)
Error: pandoc document conversion failed with error 1

Whereas the following works:

rmarkdown::render('r4ds.Rmd')

Session Info:

Session info ----------------------------------------------------------------------------------------------------------------
 setting  value                       
 version  R version 3.4.3 (2017-11-30)
 system   x86_64, linux-gnu           
 ui       RStudio (1.2.909.1)         
 language (EN)                        
 collate  en_US.UTF-8                 
 tz       America/New_York            
 date     2018-08-20                  

Packages --------------------------------------------------------------------------------------------------------------------
 package   * version date       source                            
 base64enc   0.1-3   2015-07-28 CRAN (R 3.4.1)                    
 digest      0.6.12  2017-01-27 CRAN (R 3.4.1)                    
 evaluate    0.11    2018-07-17 cran (@0.11)                      
 glue        1.3.0   2018-07-17 cran (@1.3.0)                     
 graphics  * 3.4.3   2017-11-30 local                             
 grDevices * 3.4.3   2017-11-30 local                             
 highr       0.6     2016-05-09 CRAN (R 3.4.1)                    
 htmldeps    0.1.1   2018-08-20 Github (rstudio/htmldeps@c1023e0) 
 htmltools   0.3.6   2017-04-28 CRAN (R 3.4.1)                    
 jsonlite    1.5     2017-06-01 CRAN (R 3.4.1)                    
 knitr       1.20    2018-02-20 CRAN (R 3.4.3)                    
 magrittr    1.5     2014-11-22 CRAN (R 3.4.1)                    
 markdown    0.8     2017-04-20 CRAN (R 3.4.1)                    
 methods   * 3.4.3   2017-11-30 local                             
 mime        0.5     2016-07-07 CRAN (R 3.4.1)                    
 Rcpp        0.12.12 2017-07-15 CRAN (R 3.4.1)                    
 rmarkdown   1.10.11 2018-08-20 Github (rstudio/rmarkdown@cac9e82)
 stats     * 3.4.3   2017-11-30 local                             
 stringi     1.2.4   2018-07-20 cran (@1.2.4)                     
 stringr     1.3.1   2018-05-10 cran (@1.3.1)                     
 tinytex     0.6     2018-07-07 cran (@0.6)                       
 tools       3.4.3   2017-11-30 local                             
 utils     * 3.4.3   2017-11-30 local                             
 xfun        0.3     2018-07-06 cran (@0.3)                       
 yaml        2.2.0   2018-07-25 cran (@2.2.0)     

rmd-ppt-template.zip

[yihui]

I guess this is essentially the same issue as #500 and is not specific to powerpoint_presentation (it must affect at least word_document, too). @rich-iannone Do you have time to create a patch? My guess is we need an intermediates_generator.

[rich-iannone]

I will work on this now. Could you elaborate on the idea of the intermediates_generator?

[yihui]

See ?rmarkdown::output_format and also search for intermediates_generator in the source code of other output format functions.

[yihui]

Should be fixed now. Thanks for the report!

[bwiernik]

I don't understand the purpose of this line:

rmarkdown/R/powerpoint_presentation.R

Line 78 in e91e4c2

if (dirname(reference_doc) != '.') stop(

In psychmeta (https://github.com/psychmeta/psychmeta/blob/2447d1891bf41d6fa3aa34bd88adee91d9cc8ed2/R/output.R#L810), we provide a set of document templates in the package for outputting results as docx or odt. We access these using by specifying the reference_docx in an rmarkdown file using system.file("reference_docx.docx", package = "psychmeta").

With this change, rendering fails because the reference_docx file is not located in the same directory as the markdown script. I don't see why this check is necessary at all. file.copy() works fine with the reference file being located in a different directory.

[yihui]

Explained in #1526.

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