You can install the development version of treefrog like so:
# install.packages("devtools")
devtools::install_github("AnushaPB/treefrog")
library(treefrog)
library(here)
#> here() starts at /mnt/c/Users/Anusha/Documents/GitHub/treefrog
# examples
res <- generateDirectoryTree(here(), "filetree.txt", include_pattern = c("*.py", "*.R"), exclude_pattern = "html")
#> ├───DESCRIPTION #DESCRIPTION HERE
#> ├───[man] #DESCRIPTION HERE
#> │ ├───generateDirectoryTree.Rd #DESCRIPTION HERE
#> ├───[R] #DESCRIPTION HERE
#> │ ├───generateDirectoryTree.R #DESCRIPTION HERE
#> └───README.Rmd #DESCRIPTION HERE
res <- generateDirectoryTree(here(), include_pattern = c("*.R"), fill_in = TRUE)