Use explicit pkg namespaces

This makes non-base-R dependencies clearly apparent

Author: salim-b

tools/update_plotlyjs.R

@@ -1,21 +1,18 @@
-library(httr)
-library(rprojroot)
-
 # get zip URL to latest plotly.js release
-x <- RETRY(
+x <- httr::RETRY(
   verb = "GET",
   url = 'https://api.github.com/repos/plotly/plotly.js/releases/latest',
   times = 5,
   terminate_on = c(400, 401, 403, 404),
   terminate_on_success = TRUE
 )
-zip <- content(x)$zipball_url
+zip <- httr::content(x)$zipball_url
 
 # remember where to copy over assets
-pkg_dir <- find_package_root_file()
-lib_dir <- find_package_root_file("inst/htmlwidgets/lib/plotlyjs")
+pkg_dir <- rprojroot::find_package_root_file()
+lib_dir <- rprojroot::find_package_root_file("inst/htmlwidgets/lib/plotlyjs")
 patches <- list.files(
-  find_package_root_file("tools/patches"), 
+  rprojroot::find_package_root_file("tools/patches"), 
   full.names = TRUE
 )
 
@@ -25,8 +22,8 @@ dir.create(tmpdir)
 
 withr::with_dir(tmpdir, {
   # download source
-  download.file(zip, "plotly-js.zip")
-  unzip("plotly-js.zip", exdir = "plotly-js")
+  utils::download.file(zip, "plotly-js.zip")
+  utils::unzip("plotly-js.zip", exdir = "plotly-js")
 
   withr::with_dir(
     dir("plotly-js", full.names = TRUE), {