Like the miniCRAN and drat packages, cranlift allows users to
manage their own CRAN-like R package archives. However, cranlift does
so by running a fully-featured API server that exposes packages as
resources that can be added, deleted, and modified using HTTP requests,
in line with RESTful design principles.
cranlift supports both source and binary packages, as well as CRAN’s
Archive layout for storing old versions of packages.
cranlift is not yet available on CRAN.
For now, you can install the development version from
GitHub with:
# install.packages("devtools")
devtools::install_github("atheriel/cranlift")To serve an (empty) CRAN-like repository, call cranlift::serve():
dir.create(repo <- tempfile("repo"))
cranlift::serve(repo, port = 8000)You can then verify that R sees it as a package repository (with zero packages at the moment):
nrow(available.packages(repos = "http://127.0.0.1:8000"))
#> [1] 0Now let’s add an example package to the repository, say miniCRAN.
Because we’re interacting with a server, we do this with an HTTP
request:
path <- download.packages("miniCRAN", tempdir(), type = "source")[1,2]
httr::PUT(
sprintf("127.0.0.1:8000/src/contrib/%s", basename(path)),
body = list(file = httr::upload_file(path))
)
#> Response [http://127.0.0.1:8000/src/contrib/miniCRAN_0.2.12.tar.gz]
#> Date: 2019-12-20 18:27
#> Status: 201
#> Content-Type: text/plain; charset=utf-8
#> <EMPTY BODY>
nrow(available.packages(
repos = "http://127.0.0.1:8000", ignore_repo_cache = TRUE
))
#> [1] 1Deleting a package (say, because a new version is available) works similarly:
httr::DELETE(
sprintf("127.0.0.1:8000/src/contrib/%s", basename(path))
)
#> Response [http://127.0.0.1:8000/src/contrib/miniCRAN_0.2.12.tar.gz]
#> Date: 2019-12-20 18:27
#> Status: 200
#> Content-Type: text/plain; charset=utf-8
#> <EMPTY BODY>
nrow(available.packages(
repos = "http://127.0.0.1:8000", ignore_repo_cache = TRUE
))
#> [1] 0By default, deleted packages will be moved to the archive:
httr::HEAD(sprintf(
"127.0.0.1:8000/src/contrib/Archive/miniCRAN/%s", basename(path)
))
#> Response [http://127.0.0.1:8000/src/contrib/Archive/miniCRAN/miniCRAN_0.2.12.tar.gz]
#> Date: 2019-12-20 18:27
#> Status: 200
#> Content-Type: x-gzip
#> <EMPTY BODY>cranlift can serve repositories created with drat and miniCRAN
(and has a strong emphasis on compatibility with the common repository
layout they use), but be warned that it may modify the PACKAGES files
these packages create.
cranlift is made available under the terms of the MIT license. See the
LICENSE.md file for details.
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