Commit a7c7240a authored by Raniere Silva's avatar Raniere Silva
Browse files

Merge pull request #271 from fmichonneau/check-knitr-version 

[fix #270] check knitr version before converting Rmd to md
parents c19c252b 926c4d89

Makefile

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@@ -55,7 +55,8 @@ preview : $(DST_ALL) 
	    -o $@ $<



# Pattern to convert R Markdown to Markdown.

%.md: %.Rmd $(R_CHUNK_OPTS)

%.md: %.Rmd $(R_CHUNK_OPTS) tools/check_knitr_version.R

	Rscript -e "source('tools/check_knitr_version.R')"

	Rscript -e "knitr::knit('$$(basename $<)', output = '$$(basename $@)')"



## commands : Display available commands.

tools/check_knitr_version.R

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if (require("knitr")) {

    if (packageVersion("knitr") < '1.9.19') {

        stop("knitr must be version 1.9.20 or higher")

    }

} else stop("knitr 1.9.20 or above is needed to build the lessons.")