Allow non-interactive package updates

If pkgs is TRUE, update all packages without prompting

NEWS.md

@@ -1,4 +1,6 @@
 # devtools 1.12.0.9000
+* `update_packages()` allows for override of interactive prompt (#1260, @pkq).
+
 * Bugfix for installation of dependencies in CRAN-like repositories such as
   those created by drat (@jimhester, #1243, #1339).
 

R/deps.R

@@ -368,8 +368,9 @@ standardise_dep <- function(x) {
 #' Works similarly to \code{install.packages()} but doesn't install packages
 #' that are already installed, and also upgrades out dated dependencies.
 #'
-#' @param pkgs Character vector of packages to update. If \code{NULL} all
-#'   installed packages are updated.
+#' @param pkgs Character vector of packages to update. IF \code{TRUE} all
+#' installed packages are updated. If \code{NULL} user is prompted to
+#' confirm update of all installed packages.
 #' @inheritParams package_deps
 #' @seealso \code{\link{package_deps}} to see which packages are out of date/
 #'   missing.
@@ -383,7 +384,10 @@ update_packages <- function(pkgs = NULL, dependencies = NA,
                             repos = getOption("repos"),
                             type = getOption("pkgType")) {
 
-  if (is.null(pkgs)) {
+  if (isTRUE(pkgs)) {
+    pkgs <- installed.packages()[, "Package"]
+  }
+  else if (is.null(pkgs)) {
     if (!yesno("Are you sure you want to update all installed packages?")) {
       pkgs <- installed.packages()[, "Package"]
     } else {