从GitHub更新所有软件包 [英] Update all packages from GitHub

问题描述

我知道您可以使用以下语法从CRAN安装软件包:

I know you can install packages from CRAN with this syntax:

install.packages(c("Rcpp"), dependencies=TRUE)

您可以使用以下命令从CRAN更新所有文件:

You can update all of them from CRAN with:

update.packages()

另一方面，您可以使用以下方法从GitHub安装软件包(编译它们):

On the other side, you can install packages (compiling them) from GitHub with:

install_github("hadley/tidyr")

如何升级所有GitHub软件包?

How can you upgrade all GitHub packages?

我的意思是无需一次重新安装(和编译)它们.像update.packages()那样的github.

I mean without reinstalling (and compiling) them one at a time. Something like update.packages() for github.

推荐答案

library(devtools)

#' Update all github installed packages.
#'
#' This will trash any non-master branch installs, and spend time re-installing
#' packages which are already up-to-date.
update_github <- function() {
  pkgs = loadedNamespaces()
  print(pkgs)
  desc <- lapply(pkgs, packageDescription, lib.loc = NULL)
  for (d in desc) {
    message("working on ", d$Package)
    if (!is.null(d$GithubSHA1)) {
      message("Github found")
      install_github(repo = d$GithubRepo, username = d$GithubUsername)
    }
  }
}

# test it:
# install github version of tidyr
install_github("hadley/tidyr")
library(tidyr)
update_github()

如果您安装的github安装比user/repo的master分支更复杂，请不要运行它.如果您有很多github安装，也要小心，因为这会盲目地将它们全部重新安装，即使是最新的.这可能会花费很长时间，并且如果github master分支没有处于最佳状态，也可能会破坏工作包.

Don't run this if you have any github installations from anything more complicated than the master branch of user/repo. Also be careful if you have a lot of github installations, since this will blindly reinstall them all, even if up-to-date. This could take a long time, and also might break working packages if github master branches are not in tip top condition.

有关详细信息，请查看devtools R/session_info.r.

Take a look at devtools R/session_info.r for details.

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