https://hal.archives-ouvertes.fr/hal-04452256
activate.R
local({
# the requested version of renv
version <- "0.14.0"
# the project directory
project <- getwd()
# allow environment variable to control activation
activate <- Sys.getenv("RENV_ACTIVATE_PROJECT")
if (!nzchar(activate)) {
# don't auto-activate when R CMD INSTALL is running
if (nzchar(Sys.getenv("R_INSTALL_PKG")))
return(FALSE)
}
# bail if activation was explicitly disabled
if (tolower(activate) %in% c("false", "f", "0"))
return(FALSE)
# avoid recursion
if (nzchar(Sys.getenv("RENV_R_INITIALIZING")))
return(invisible(TRUE))
# signal that we're loading renv during R startup
Sys.setenv("RENV_R_INITIALIZING" = "true")
on.exit(Sys.unsetenv("RENV_R_INITIALIZING"), add = TRUE)
# signal that we've consented to use renv
options(renv.consent = TRUE)
# load the 'utils' package eagerly -- this ensures that renv shims, which
# mask 'utils' packages, will come first on the search path
library(utils, lib.loc = .Library)
# check to see if renv has already been loaded
if ("renv" %in% loadedNamespaces()) {
# if renv has already been loaded, and it's the requested version of renv,
# nothing to do
spec <- .getNamespaceInfo(.getNamespace("renv"), "spec")
if (identical(spec[["version"]], version))
return(invisible(TRUE))
# otherwise, unload and attempt to load the correct version of renv
unloadNamespace("renv")
}
# load bootstrap tools
bootstrap <- function(version, library) {
# attempt to download renv
tarball <- tryCatch(renv_bootstrap_download(version), error = identity)
if (inherits(tarball, "error"))
stop("failed to download renv ", version)
# now attempt to install
status <- tryCatch(renv_bootstrap_install(version, tarball, library), error = identity)
if (inherits(status, "error"))
stop("failed to install renv ", version)
}
renv_bootstrap_tests_running <- function() {
getOption("renv.tests.running", default = FALSE)
}
renv_bootstrap_repos <- function() {
# check for repos override
repos <- Sys.getenv("RENV_CONFIG_REPOS_OVERRIDE", unset = NA)
if (!is.na(repos))
return(repos)
# if we're testing, re-use the test repositories
if (renv_bootstrap_tests_running())
return(getOption("renv.tests.repos"))
# retrieve current repos
repos <- getOption("repos")
# ensure @CRAN@ entries are resolved
repos[repos == "@CRAN@"] <- getOption(
"renv.repos.cran",
"https://cloud.r-project.org"
)
# add in renv.bootstrap.repos if set
default <- c(FALLBACK = "https://cloud.r-project.org")
extra <- getOption("renv.bootstrap.repos", default = default)
repos <- c(repos, extra)
# remove duplicates that might've snuck in
dupes <- duplicated(repos) | duplicated(names(repos))
repos[!dupes]
}
renv_bootstrap_download <- function(version) {
# if the renv version number has 4 components, assume it must
# be retrieved via github
nv <- numeric_version(version)
components <- unclass(nv)[[1]]
methods <- if (length(components) == 4L) {
list(
renv_bootstrap_download_github
)
} else {
list(
renv_bootstrap_download_cran_latest,
renv_bootstrap_download_cran_archive
)
}
for (method in methods) {
path <- tryCatch(method(version), error = identity)
if (is.character(path) && file.exists(path))
return(path)
}
stop("failed to download renv ", version)
}
renv_bootstrap_download_impl <- function(url, destfile) {
mode <- "wb"
# https://bugs.r-project.org/bugzilla/show_bug.cgi?id=17715
fixup <-
Sys.info()[["sysname"]] == "Windows" &&
substring(url, 1L, 5L) == "file:"
if (fixup)
mode <- "w+b"
utils::download.file(
url = url,
destfile = destfile,
mode = mode,
quiet = TRUE
)
}
renv_bootstrap_download_cran_latest <- function(version) {
spec <- renv_bootstrap_download_cran_latest_find(version)
message("* Downloading renv ", version, " ... ", appendLF = FALSE)
type <- spec$type
repos <- spec$repos
info <- tryCatch(
utils::download.packages(
pkgs = "renv",
destdir = tempdir(),
repos = repos,
type = type,
quiet = TRUE
),
condition = identity
)
if (inherits(info, "condition")) {
message("FAILED")
return(FALSE)
}
# report success and return
message("OK (downloaded ", type, ")")
info[1, 2]
}
renv_bootstrap_download_cran_latest_find <- function(version) {
# check whether binaries are supported on this system
binary <-
getOption("renv.bootstrap.binary", default = TRUE) &&
!identical(.Platform$pkgType, "source") &&
!identical(getOption("pkgType"), "source") &&
Sys.info()[["sysname"]] %in% c("Darwin", "Windows")
types <- c(if (binary) "binary", "source")
# iterate over types + repositories
for (type in types) {
for (repos in renv_bootstrap_repos()) {
# retrieve package database
db <- tryCatch(
as.data.frame(
utils::available.packages(type = type, repos = repos),
stringsAsFactors = FALSE
),
error = identity
)
if (inherits(db, "error"))
next
# check for compatible entry
entry <- db[db$Package %in% "renv" & db$Version %in% version, ]
if (nrow(entry) == 0)
next
# found it; return spec to caller
spec <- list(entry = entry, type = type, repos = repos)
return(spec)
}
}
# if we got here, we failed to find renv
fmt <- "renv %s is not available from your declared package repositories"
stop(sprintf(fmt, version))
}
renv_bootstrap_download_cran_archive <- function(version) {
name <- sprintf("renv_%s.tar.gz", version)
repos <- renv_bootstrap_repos()
urls <- file.path(repos, "src/contrib/Archive/renv", name)
destfile <- file.path(tempdir(), name)
message("* Downloading renv ", version, " ... ", appendLF = FALSE)
for (url in urls) {
status <- tryCatch(
renv_bootstrap_download_impl(url, destfile),
condition = identity
)
if (identical(status, 0L)) {
message("OK")
return(destfile)
}
}
message("FAILED")
return(FALSE)
}
renv_bootstrap_download_github <- function(version) {
enabled <- Sys.getenv("RENV_BOOTSTRAP_FROM_GITHUB", unset = "TRUE")
if (!identical(enabled, "TRUE"))
return(FALSE)
# prepare download options
pat <- Sys.getenv("GITHUB_PAT")
if (nzchar(Sys.which("curl")) && nzchar(pat)) {
fmt <- "--location --fail --header \"Authorization: token %s\""
extra <- sprintf(fmt, pat)
saved <- options("download.file.method", "download.file.extra")
options(download.file.method = "curl", download.file.extra = extra)
on.exit(do.call(base::options, saved), add = TRUE)
} else if (nzchar(Sys.which("wget")) && nzchar(pat)) {
fmt <- "--header=\"Authorization: token %s\""
extra <- sprintf(fmt, pat)
saved <- options("download.file.method", "download.file.extra")
options(download.file.method = "wget", download.file.extra = extra)
on.exit(do.call(base::options, saved), add = TRUE)
}
message("* Downloading renv ", version, " from GitHub ... ", appendLF = FALSE)
url <- file.path("https://api.github.com/repos/rstudio/renv/tarball", version)
name <- sprintf("renv_%s.tar.gz", version)
destfile <- file.path(tempdir(), name)
status <- tryCatch(
renv_bootstrap_download_impl(url, destfile),
condition = identity
)
if (!identical(status, 0L)) {
message("FAILED")
return(FALSE)
}
message("OK")
return(destfile)
}
renv_bootstrap_install <- function(version, tarball, library) {
# attempt to install it into project library
message("* Installing renv ", version, " ... ", appendLF = FALSE)
dir.create(library, showWarnings = FALSE, recursive = TRUE)
# invoke using system2 so we can capture and report output
bin <- R.home("bin")
exe <- if (Sys.info()[["sysname"]] == "Windows") "R.exe" else "R"
r <- file.path(bin, exe)
args <- c("--vanilla", "CMD", "INSTALL", "-l", shQuote(library), shQuote(tarball))
output <- system2(r, args, stdout = TRUE, stderr = TRUE)
message("Done!")
# check for successful install
status <- attr(output, "status")
if (is.numeric(status) && !identical(status, 0L)) {
header <- "Error installing renv:"
lines <- paste(rep.int("=", nchar(header)), collapse = "")
text <- c(header, lines, output)
writeLines(text, con = stderr())
}
status
}
renv_bootstrap_platform_prefix <- function() {
# construct version prefix
version <- paste(R.version$major, R.version$minor, sep = ".")
prefix <- paste("R", numeric_version(version)[1, 1:2], sep = "-")
# include SVN revision for development versions of R
# (to avoid sharing platform-specific artefacts with released versions of R)
devel <-
identical(R.version[["status"]], "Under development (unstable)") ||
identical(R.version[["nickname"]], "Unsuffered Consequences")
if (devel)
prefix <- paste(prefix, R.version[["svn rev"]], sep = "-r")
# build list of path components
components <- c(prefix, R.version$platform)
# include prefix if provided by user
prefix <- renv_bootstrap_platform_prefix_impl()
if (!is.na(prefix) && nzchar(prefix))
components <- c(prefix, components)
# build prefix
paste(components, collapse = "/")
}
renv_bootstrap_platform_prefix_impl <- function() {
# if an explicit prefix has been supplied, use it
prefix <- Sys.getenv("RENV_PATHS_PREFIX", unset = NA)
if (!is.na(prefix))
return(prefix)
# if the user has requested an automatic prefix, generate it
auto <- Sys.getenv("RENV_PATHS_PREFIX_AUTO", unset = NA)
if (auto %in% c("TRUE", "True", "true", "1"))
return(renv_bootstrap_platform_prefix_auto())
# empty string on failure
""
}
renv_bootstrap_platform_prefix_auto <- function() {
prefix <- tryCatch(renv_bootstrap_platform_os(), error = identity)
if (inherits(prefix, "error") || prefix %in% "unknown") {
msg <- paste(
"failed to infer current operating system",
"please file a bug report at https://github.com/rstudio/renv/issues",
sep = "; "
)
warning(msg)
}
prefix
}
renv_bootstrap_platform_os <- function() {
sysinfo <- Sys.info()
sysname <- sysinfo[["sysname"]]
# handle Windows + macOS up front
if (sysname == "Windows")
return("windows")
else if (sysname == "Darwin")
return("macos")
# check for os-release files
for (file in c("/etc/os-release", "/usr/lib/os-release"))
if (file.exists(file))
return(renv_bootstrap_platform_os_via_os_release(file, sysinfo))
# check for redhat-release files
if (file.exists("/etc/redhat-release"))
return(renv_bootstrap_platform_os_via_redhat_release())
"unknown"
}
renv_bootstrap_platform_os_via_os_release <- function(file, sysinfo) {
# read /etc/os-release
release <- utils::read.table(
file = file,
sep = "=",
quote = c("\"", "'"),
col.names = c("Key", "Value"),
comment.char = "#",
stringsAsFactors = FALSE
)
vars <- as.list(release$Value)
names(vars) <- release$Key
# get os name
os <- tolower(sysinfo[["sysname"]])
# read id
id <- "unknown"
for (field in c("ID", "ID_LIKE")) {
if (field %in% names(vars) && nzchar(vars[[field]])) {
id <- vars[[field]]
break
}
}
# read version
version <- "unknown"
for (field in c("UBUNTU_CODENAME", "VERSION_CODENAME", "VERSION_ID", "BUILD_ID")) {
if (field %in% names(vars) && nzchar(vars[[field]])) {
version <- vars[[field]]
break
}
}
# join together
paste(c(os, id, version), collapse = "-")
}
renv_bootstrap_platform_os_via_redhat_release <- function() {
# read /etc/redhat-release
contents <- readLines("/etc/redhat-release", warn = FALSE)
# infer id
id <- if (grepl("centos", contents, ignore.case = TRUE))
"centos"
else if (grepl("redhat", contents, ignore.case = TRUE))
"redhat"
else
"unknown"
# try to find a version component (very hacky)
version <- "unknown"
parts <- strsplit(contents, "[[:space:]]")[[1L]]
for (part in parts) {
nv <- tryCatch(numeric_version(part), error = identity)
if (inherits(nv, "error"))
next
version <- nv[1, 1]
break
}
paste(c("linux", id, version), collapse = "-")
}
renv_bootstrap_library_root_name <- function(project) {
# use project name as-is if requested
asis <- Sys.getenv("RENV_PATHS_LIBRARY_ROOT_ASIS", unset = "FALSE")
if (asis)
return(basename(project))
# otherwise, disambiguate based on project's path
id <- substring(renv_bootstrap_hash_text(project), 1L, 8L)
paste(basename(project), id, sep = "-")
}
renv_bootstrap_library_root <- function(project) {
path <- Sys.getenv("RENV_PATHS_LIBRARY", unset = NA)
if (!is.na(path))
return(path)
path <- Sys.getenv("RENV_PATHS_LIBRARY_ROOT", unset = NA)
if (!is.na(path)) {
name <- renv_bootstrap_library_root_name(project)
return(file.path(path, name))
}
prefix <- renv_bootstrap_profile_prefix()
paste(c(project, prefix, "renv/library"), collapse = "/")
}
renv_bootstrap_validate_version <- function(version) {
loadedversion <- utils::packageDescription("renv", fields = "Version")
if (version == loadedversion)
return(TRUE)
# assume four-component versions are from GitHub; three-component
# versions are from CRAN
components <- strsplit(loadedversion, "[.-]")[[1]]
remote <- if (length(components) == 4L)
paste("rstudio/renv", loadedversion, sep = "@")
else
paste("renv", loadedversion, sep = "@")
fmt <- paste(
"renv %1$s was loaded from project library, but this project is configured to use renv %2$s.",
"Use `renv::record(\"%3$s\")` to record renv %1$s in the lockfile.",
"Use `renv::restore(packages = \"renv\")` to install renv %2$s into the project library.",
sep = "\n"
)
msg <- sprintf(fmt, loadedversion, version, remote)
warning(msg, call. = FALSE)
FALSE
}
renv_bootstrap_hash_text <- function(text) {
hashfile <- tempfile("renv-hash-")
on.exit(unlink(hashfile), add = TRUE)
writeLines(text, con = hashfile)
tools::md5sum(hashfile)
}
renv_bootstrap_load <- function(project, libpath, version) {
# try to load renv from the project library
if (!requireNamespace("renv", lib.loc = libpath, quietly = TRUE))
return(FALSE)
# warn if the version of renv loaded does not match
renv_bootstrap_validate_version(version)
# load the project
renv::load(project)
TRUE
}
renv_bootstrap_profile_load <- function(project) {
# if RENV_PROFILE is already set, just use that
profile <- Sys.getenv("RENV_PROFILE", unset = NA)
if (!is.na(profile) && nzchar(profile))
return(profile)
# check for a profile file (nothing to do if it doesn't exist)
path <- file.path(project, "renv/local/profile")
if (!file.exists(path))
return(NULL)
# read the profile, and set it if it exists
contents <- readLines(path, warn = FALSE)
if (length(contents) == 0L)
return(NULL)
# set RENV_PROFILE
profile <- contents[[1L]]
if (nzchar(profile))
Sys.setenv(RENV_PROFILE = profile)
profile
}
renv_bootstrap_profile_prefix <- function() {
profile <- renv_bootstrap_profile_get()
if (!is.null(profile))
return(file.path("renv/profiles", profile))
}
renv_bootstrap_profile_get <- function() {
profile <- Sys.getenv("RENV_PROFILE", unset = "")
renv_bootstrap_profile_normalize(profile)
}
renv_bootstrap_profile_set <- function(profile) {
profile <- renv_bootstrap_profile_normalize(profile)
if (is.null(profile))
Sys.unsetenv("RENV_PROFILE")
else
Sys.setenv(RENV_PROFILE = profile)
}
renv_bootstrap_profile_normalize <- function(profile) {
if (is.null(profile) || profile %in% c("", "default"))
return(NULL)
profile
}
# load the renv profile, if any
renv_bootstrap_profile_load(project)
# construct path to library root
root <- renv_bootstrap_library_root(project)
# construct library prefix for platform
prefix <- renv_bootstrap_platform_prefix()
# construct full libpath
libpath <- file.path(root, prefix)
# attempt to load
if (renv_bootstrap_load(project, libpath, version))
return(TRUE)
# load failed; inform user we're about to bootstrap
prefix <- paste("# Bootstrapping renv", version)
postfix <- paste(rep.int("-", 77L - nchar(prefix)), collapse = "")
header <- paste(prefix, postfix)
message(header)
# perform bootstrap
bootstrap(version, libpath)
# exit early if we're just testing bootstrap
if (!is.na(Sys.getenv("RENV_BOOTSTRAP_INSTALL_ONLY", unset = NA)))
return(TRUE)
# try again to load
if (requireNamespace("renv", lib.loc = libpath, quietly = TRUE)) {
message("* Successfully installed and loaded renv ", version, ".")
return(renv::load())
}
# failed to download or load renv; warn the user
msg <- c(
"Failed to find an renv installation: the project will not be loaded.",
"Use `renv::activate()` to re-initialize the project."
)
warning(paste(msg, collapse = "\n"), call. = FALSE)
})
