ci: use gert + more R packages

.github/workflows/render-rmarkdown.yaml

@@ -21,11 +21,13 @@ jobs:
           fetch-depth: 0
       - uses: r-lib/actions/setup-pandoc@v2
       - uses: r-lib/actions/setup-r@v2
-      - uses: r-lib/actions/setup-renv@v2
 
+    # install linux packages
+      - name: install linux packages
+        run: apt-get install -y libgit2-dev
     # install CRAN packages used inside README.Rmd
       - name: install required packages
-        run: Rscript -e 'install.packages(c("rmarkdown", "covr"))'
+        run: Rscript -e 'install.packages(c("rmarkdown", "covr", "gert",  "knitr", "devtools"))'
     # Render READEME.md using rmarkdown
       - name: render README
         run: Rscript -e 'rmarkdown::render("README.Rmd", output_format = "md_document")'

README.Rmd

@@ -18,14 +18,16 @@ knitr::opts_chunk$set(
 <!-- badges: start -->
 
 ```{r echo = FALSE}
-name_branch <- system("git symbolic-ref --short HEAD", intern = TRUE)
+name_branch <- gert::git_branch()
 link_to_branch_svg <- paste0(
   "https://codecov.io/gh/ThinkR-open/golem/branch/",
   name_branch,
-  "/graph/badge.svg")
+  "/graph/badge.svg"
+ )
 link_to_branch_html <- paste0(
   "https://app.codecov.io/github/ThinkR-open/golem/tree/",
-  name_branch)
+  name_branch
+ )
 ```
 
 ```{r, echo = FALSE, results = "asis"}