feat: add CITATION file and use it to generate package startup message

R/wru-internal.R

@@ -1,7 +1,7 @@
-.onAttach <- 
-function(libname, pkgname) {
-  packageStartupMessage("\nPlease cite as: \n")
-  packageStartupMessage("Khanna K, Bertelsen B, Olivella S, Rosenman E, Imai K (2022). wru: Who are You?")
-  packageStartupMessage("Bayesian Prediction of Racial Category Using Surname, First Name, Middle Name, and Geolocation.")
-  packageStartupMessage("URL: https://CRAN.R-project.org/package=wru \n")
+.onAttach <- function(libname, pkgname) {
+  packageStartupMessage(
+    "\nPlease cite as:\n\n",
+    format(citation("wru"), style = "text"),
+    "\n"
+  )
 }

inst/CITATION

@@ -0,0 +1,13 @@
+bibentry(
+  bibtype = "Manual",
+  title = "wru: Who are You? Bayesian Prediction of Racial Category Using Surname, First Name, Middle Name, and Geolocation",
+  author = c(
+    person("Kabir", "Khanna", , "[email protected]", role = "aut"),
+    person("Brandon", "Bertelsen", , "[email protected]", role = c("aut", "cre")),
+    person("Santiago", "Olivella", , "[email protected]", role = "aut"),
+    person("Evan", "Rosenman", , "[email protected]", role = "aut"),
+    person("Kosuke", "Imai", , "[email protected]", role = "aut")
+  ),
+  year = 2023,
+  url = "https://CRAN.R-project.org/package=wru"
+)