pkgdepends HOWTO

Dependencies

How to list all dependencies of a CRAN/Bioconductor package?

library(pkgdepends)
prop <- new_pkg_deps("ggplot2")
prop$solve()
prop$get_solution()$data

#> Error in library(pkgdepends) : there is no package called ‘pkgdepends’          
#> Error in new_pkg_deps("ggplot2") : could not find function "new_pkg_deps"       
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  

You can also draw a dependency tree:

prop$draw()

#> Error: object 'prop' not found                                                  

How to list all dependencies of a GitHub package?

library(pkgdepends)
prop <- new_pkg_deps("tidyverse/ggplot2")
prop$solve()
prop$get_solution()$data

#> Error in library(pkgdepends) : there is no package called ‘pkgdepends’          
#> Error in new_pkg_deps("tidyverse/ggplot2") :                                    
#>   could not find function "new_pkg_deps"                                        
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  

How to list all dependencies of a local package?

library(pkgdepends)
prop <- new_pkg_deps("local::.")
prop$solve()
prop$get_solution()$data

#> Error in library(pkgdepends) : there is no package called ‘pkgdepends’          
#> Error in new_pkg_deps("local::.") :                                             
#>   could not find function "new_pkg_deps"                                        
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  

Downloads

How to download a package and all of its dependencies?

library(pkgdepends)
target_dir <- tempfile()
dir.create(target_dir)
prop <- new_pkg_download_proposal("ggplot2", config = list(cache_dir = target_dir))
prop$resolve()
prop$download()
prop$get_downloads()
dir(target_dir)

#> Error in new_pkg_download_proposal("ggplot2", config = list(cache_dir = target_d
#> ir)) :                                                                          
#>   could not find function "new_pkg_download_proposal"                           
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  
#> character(0)                                                                    

Installation

How to install a package into a new library?

library(pkgdepends)
dir.create(new_lib <- tempfile())
prop <- new_pkg_installation_proposal("pkgconfig", config = list(library = new_lib))
prop$solve()
prop$download()
prop$install()
lib_status(new_lib)

#> Error in new_pkg_installation_proposal("pkgconfig", config = list(library = new_
#> lib)) :                                                                         
#>   could not find function "new_pkg_installation_proposal"                       
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  
#> Error in lib_status(new_lib) : could not find function "lib_status"             

How to update a package?

Install an older version first.

library(pkgdepends)
dir.create(new_lib <- tempfile())
config <- list(library = new_lib)
prop <- new_pkg_installation_proposal("cran/pkgconfig@2.0.2", config = config)
prop$solve()
prop$download()
prop$install()
lib_status(new_lib)

#> Error in new_pkg_installation_proposal("cran/pkgconfig@2.0.2", config = config) 
#> :                                                                               
#>   could not find function "new_pkg_installation_proposal"                       
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  
#> Error: object 'prop' not found                                                  
#> Error in lib_status(new_lib) : could not find function "lib_status"             

Now update.

library(pkgdepends)
prop2 <- new_pkg_installation_proposal("pkgconfig", config = config)
prop2$set_solve_policy("upgrade")
prop2$solve()
prop2$download()
prop2$install()
lib_status(new_lib)

#> Error in library(pkgdepends) : there is no package called ‘pkgdepends’          
#> Error in new_pkg_installation_proposal("pkgconfig", config = config) :          
#>   could not find function "new_pkg_installation_proposal"                       
#> Error: object 'prop2' not found                                                 
#> Error: object 'prop2' not found                                                 
#> Error: object 'prop2' not found                                                 
#> Error: object 'prop2' not found                                                 
#> Error in lib_status(new_lib) : could not find function "lib_status"