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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Add required packages from GitHub (UserName/RepositoryName) to this vector
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GitHub_packages <- NULL
main <- function(GitHub_packages = NULL,
CRAN_repo = "http://cran.wustl.edu/",
dependency = TRUE, quiet = TRUE, upgrade = FALSE) {
# If there are packages installed from Github, first make sure "devtools" is installed
if (!is.null(GitHub_packages)) {
install_CRAN("devtools", repo = CRAN_repo, dependency = dependency,
quiet = quiet, upgrade = upgrade)
}
# Install packages from GitHub
if (!is.null(GitHub_packages)) {
library(devtools)
lapply(GitHub_packages, function(pkg) install_github(pkg))
}
}
install_CRAN <- function(pkg, repo, dependency, quiet, upgrade = FALSE) {
if (upgrade) {
install.packages(pkg, repos = repo, dependencies = dependency, quiet = quiet)
} else {
if (system.file(package = pkg) == "") {
install.packages(pkg, repos = repo, dependencies = dependency, quiet = quiet)
}
}
}
# upgrade = TRUE will update all packages to the most current version
# upgrade = FALSE will skip packages that are already installed
main(GitHub_packages, upgrade = FALSE)
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