fix warnings and errors

DESCRIPTION

@@ -5,6 +5,7 @@ Author: Laurent Gatto <[email protected]>
 Maintainer: Laurent Gatto <[email protected]>
 Description: Miscellaneous helper functions aimed at facilitating and
     standardising simple repetitive tasks.
+Imports: grDevices, graphics, utils, scales    		  
+Suggests: testthat
 License: GPL-3
 RoxygenNote: 5.0.1
-Suggests: testthat

NAMESPACE

@@ -1,8 +1,16 @@
+importFrom("grDevices", "col2rgb", "colours", "dev.off", "pdf", "png",
+           "rgb", "xy.coords")
+importFrom("graphics", "identify", "image", "text")
+importFrom("utils", "head", "tail")
+importFrom("scales", "col2hcl")
+
+
 export(cputools,
+       biocVersions,
        makeTravisShield, makeCodecovShield,
        makeBiocBuildShield, makeBiocCovrShield, 
        makeGithubUrl, makeGithubPageUrl, makeGithubIssuesUrl,
-       pkgqsts,       
+       pkgqsts,
        ht,
        darken, lighten,
        colour_picker,

R/shields.R

@@ -17,7 +17,10 @@
 ##' @author Laurent Gatto
 ##' @rdname shields
 ##' @examples
-##' makeTravisShield("pRoloc")
+##' makeTravisShield("pRoloc", user = "lgatto")
+##' ## default user
+##' options(GitHubUserName = "ComputationalProteomicsUnit")
+##' makeCodecovShield("cputools")
 makeTravisShield <- function(pkg, user = options()[["GitHubUserName"]],
                              branch = "master") {
     stopifnot(is.character(user))
@@ -32,7 +35,8 @@ makeTravisShield <- function(pkg, user = options()[["GitHubUserName"]],
 }
 
 ##' @rdname shields
-##' makeCodecovShield("MSnbase")
+##' @examples
+##' makeCodecovShield("MSnbase", user = "lgatto")
 makeCodecovShield <- function(pkg, user = options()[["GitHubUserName"]],
                              branch = "master") {
     stopifnot(is.character(user))