Question

我正在寻找一种灵活的方式来以编程方式获取包的Imports:和Depends:包。诀窍是该方法应该工作，无论包是否

安装或刚加载devtools::load_all()或
通过命名空间附加或仅可用。

所需功能：

package_deps("dplyr")
## [1] "assertthat" "bindrcpp"   "glue"       "magrittr"   "methods"    "pkgconfig" 
## [7] "rlang"      "R6"         "Rcpp"       "tibble"     "utils"

请注意，版本号都被删除了。

我正在撰写这篇文章，因为它似乎已经存在了。（毕竟，install.packages()需要类似的功能。）我宁愿不必自己管理所有特殊情况。

Answer 1

我维护的pacman包这样做：

if (!require("pacman")) install.packages("pacman")
pacman::p_depends(dplyr)

$Imports
 [1] "assertthat" "bindrcpp"   "glue"       "magrittr"   "methods"   
 [6] "pkgconfig"  "rlang"      "R6"         "Rcpp"       "tibble"    
[11] "utils"     

$LinkingTo
[1] "Rcpp"     "BH"       "bindrcpp" "plogr"   

$Suggests
 [1] "bit64"          "covr"           "dbplyr"         "dtplyr"        
 [5] "DBI"            "ggplot2"        "hms"            "knitr"         
 [9] "Lahman"         "mgcv"           "microbenchmark" "nycflights13"  
[13] "rmarkdown"      "RMySQL"         "RPostgreSQL"    "RSQLite"       
[17] "testthat"       "withr"

列出程序包的依赖关系，无论其如何加载或安装

1 个答案: