r-列出软件包的依赖关系,无论其加载方式如何



我正在寻找一种流畅的方法,以获取软件包的Imports:Depends:软件包。诀窍是该方法应该工作,无论软件包是否为

  1. 已安装或刚加载devtools::load_all()
  2. 附加或仅通过命名空间可用。

所需功能:

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

请注意,版本号都被剥夺了。

我正在写这篇文章,因为似乎已经存在。(毕竟,install.packages()需要类似的功能。)我宁愿自己管理所有特殊情况。

我维护的Pacman软件包做到了:

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"         

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