local({ # the requested version of renv version <- "1.0.3" attr(version, "sha") <- "1.0.3" # the project directory project <- getwd() # use start-up diagnostics if enabled diagnostics <- Sys.getenv("RENV_STARTUP_DIAGNOSTICS", unset = "FALSE") if (diagnostics) { start <- Sys.time() profile <- tempfile("renv-startup-", fileext = ".Rprof") utils::Rprof(profile) on.exit({ utils::Rprof(NULL) elapsed <- signif(difftime(Sys.time(), start, units = "auto"), digits = 2L) writeLines(sprintf("- renv took %s to run the autoloader.", format(elapsed))) writeLines(sprintf("- Profile: %s", profile)) print(utils::summaryRprof(profile)) }, add = TRUE) } # figure out whether the autoloader is enabled enabled <- local({ # first, check config option override <- getOption("renv.config.autoloader.enabled") if (!is.null(override)) return(override) # next, check environment variables # TODO: prefer using the configuration one in the future envvars <- c( "RENV_CONFIG_AUTOLOADER_ENABLED", "RENV_AUTOLOADER_ENABLED", "RENV_ACTIVATE_PROJECT" ) for (envvar in envvars) { envval <- Sys.getenv(envvar, unset = NA) if (!is.na(envval)) return(tolower(envval) %in% c("true", "t", "1")) } # enable by default TRUE }) if (!enabled) return(FALSE) # avoid recursion if (identical(getOption("renv.autoloader.running"), TRUE)) { warning("ignoring recursive attempt to run renv autoloader") return(invisible(TRUE)) } # signal that we're loading renv during R startup options(renv.autoloader.running = TRUE) on.exit(options(renv.autoloader.running = NULL), 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) # unload renv if it's already been loaded if ("renv" %in% loadedNamespaces()) unloadNamespace("renv") # load bootstrap tools `%||%` <- function(x, y) { if (is.null(x)) y else x } catf <- function(fmt, ..., appendLF = TRUE) { quiet <- getOption("renv.bootstrap.quiet", default = FALSE) if (quiet) return(invisible()) msg <- sprintf(fmt, ...) cat(msg, file = stdout(), sep = if (appendLF) "\n" else "") invisible(msg) } header <- function(label, ..., prefix = "#", suffix = "-", n = min(getOption("width"), 78)) { label <- sprintf(label, ...) n <- max(n - nchar(label) - nchar(prefix) - 2L, 8L) if (n <= 0) return(paste(prefix, label)) tail <- paste(rep.int(suffix, n), collapse = "") paste0(prefix, " ", label, " ", tail) } startswith <- function(string, prefix) { substring(string, 1, nchar(prefix)) == prefix } bootstrap <- function(version, library) { friendly <- renv_bootstrap_version_friendly(version) section <- header(sprintf("Bootstrapping renv %s", friendly)) catf(section) # attempt to download renv catf("- Downloading renv ... ", appendLF = FALSE) withCallingHandlers( tarball <- renv_bootstrap_download(version), error = function(err) { catf("FAILED") stop("failed to download:\n", conditionMessage(err)) } ) catf("OK") on.exit(unlink(tarball), add = TRUE) # now attempt to install catf("- Installing renv ... ", appendLF = FALSE) withCallingHandlers( status <- renv_bootstrap_install(version, tarball, library), error = function(err) { catf("FAILED") stop("failed to install:\n", conditionMessage(err)) } ) catf("OK") # add empty line to break up bootstrapping from normal output catf("") return(invisible()) } renv_bootstrap_tests_running <- function() { getOption("renv.tests.running", default = FALSE) } renv_bootstrap_repos <- function() { # get CRAN repository cran <- getOption("renv.repos.cran", "https://cloud.r-project.org") # check for repos override repos <- Sys.getenv("RENV_CONFIG_REPOS_OVERRIDE", unset = NA) if (!is.na(repos)) { # check for RSPM; if set, use a fallback repository for renv rspm <- Sys.getenv("RSPM", unset = NA) if (identical(rspm, repos)) repos <- c(RSPM = rspm, CRAN = cran) return(repos) } # check for lockfile repositories repos <- tryCatch(renv_bootstrap_repos_lockfile(), error = identity) if (!inherits(repos, "error") && length(repos)) return(repos) # retrieve current repos repos <- getOption("repos") # ensure @CRAN@ entries are resolved repos[repos == "@CRAN@"] <- cran # 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_repos_lockfile <- function() { lockpath <- Sys.getenv("RENV_PATHS_LOCKFILE", unset = "renv.lock") if (!file.exists(lockpath)) return(NULL) lockfile <- tryCatch(renv_json_read(lockpath), error = identity) if (inherits(lockfile, "error")) { warning(lockfile) return(NULL) } repos <- lockfile$R$Repositories if (length(repos) == 0) return(NULL) keys <- vapply(repos, `[[`, "Name", FUN.VALUE = character(1)) vals <- vapply(repos, `[[`, "URL", FUN.VALUE = character(1)) names(vals) <- keys return(vals) } renv_bootstrap_download <- function(version) { sha <- attr(version, "sha", exact = TRUE) methods <- if (!is.null(sha)) { # attempting to bootstrap a development version of renv c( function() renv_bootstrap_download_tarball(sha), function() renv_bootstrap_download_github(sha) ) } else { # attempting to bootstrap a release version of renv c( function() renv_bootstrap_download_tarball(version), function() renv_bootstrap_download_cran_latest(version), function() renv_bootstrap_download_cran_archive(version) ) } for (method in methods) { path <- tryCatch(method(), error = identity) if (is.character(path) && file.exists(path)) return(path) } stop("All download methods failed") } 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" args <- list( url = url, destfile = destfile, mode = mode, quiet = TRUE ) if ("headers" %in% names(formals(utils::download.file))) args$headers <- renv_bootstrap_download_custom_headers(url) do.call(utils::download.file, args) } renv_bootstrap_download_custom_headers <- function(url) { headers <- getOption("renv.download.headers") if (is.null(headers)) return(character()) if (!is.function(headers)) stopf("'renv.download.headers' is not a function") headers <- headers(url) if (length(headers) == 0L) return(character()) if (is.list(headers)) headers <- unlist(headers, recursive = FALSE, use.names = TRUE) ok <- is.character(headers) && is.character(names(headers)) && all(nzchar(names(headers))) if (!ok) stop("invocation of 'renv.download.headers' did not return a named character vector") headers } renv_bootstrap_download_cran_latest <- function(version) { spec <- renv_bootstrap_download_cran_latest_find(version) type <- spec$type repos <- spec$repos baseurl <- utils::contrib.url(repos = repos, type = type) ext <- if (identical(type, "source")) ".tar.gz" else if (Sys.info()[["sysname"]] == "Windows") ".zip" else ".tgz" name <- sprintf("renv_%s%s", version, ext) url <- paste(baseurl, name, sep = "/") destfile <- file.path(tempdir(), name) status <- tryCatch( renv_bootstrap_download_impl(url, destfile), condition = identity ) if (inherits(status, "condition")) return(FALSE) # report success and return destfile } renv_bootstrap_download_cran_latest_find <- function(version) { # check whether binaries are supported on this system binary <- getOption("renv.bootstrap.binary", default = TRUE) && !identical(.Platform$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) for (url in urls) { status <- tryCatch( renv_bootstrap_download_impl(url, destfile), condition = identity ) if (identical(status, 0L)) return(destfile) } return(FALSE) } renv_bootstrap_download_tarball <- function(version) { # if the user has provided the path to a tarball via # an environment variable, then use it tarball <- Sys.getenv("RENV_BOOTSTRAP_TARBALL", unset = NA) if (is.na(tarball)) return() # allow directories if (dir.exists(tarball)) { name <- sprintf("renv_%s.tar.gz", version) tarball <- file.path(tarball, name) } # bail if it doesn't exist if (!file.exists(tarball)) { # let the user know we weren't able to honour their request fmt <- "- RENV_BOOTSTRAP_TARBALL is set (%s) but does not exist." msg <- sprintf(fmt, tarball) warning(msg) # bail return() } catf("- Using local tarball '%s'.", tarball) tarball } 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) } 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)) return(FALSE) renv_bootstrap_download_augment(destfile) return(destfile) } # Add Sha to DESCRIPTION. This is stop gap until #890, after which we # can use renv::install() to fully capture metadata. renv_bootstrap_download_augment <- function(destfile) { sha <- renv_bootstrap_git_extract_sha1_tar(destfile) if (is.null(sha)) { return() } # Untar tempdir <- tempfile("renv-github-") on.exit(unlink(tempdir, recursive = TRUE), add = TRUE) untar(destfile, exdir = tempdir) pkgdir <- dir(tempdir, full.names = TRUE)[[1]] # Modify description desc_path <- file.path(pkgdir, "DESCRIPTION") desc_lines <- readLines(desc_path) remotes_fields <- c( "RemoteType: github", "RemoteHost: api.github.com", "RemoteRepo: renv", "RemoteUsername: rstudio", "RemotePkgRef: rstudio/renv", paste("RemoteRef: ", sha), paste("RemoteSha: ", sha) ) writeLines(c(desc_lines[desc_lines != ""], remotes_fields), con = desc_path) # Re-tar local({ old <- setwd(tempdir) on.exit(setwd(old), add = TRUE) tar(destfile, compression = "gzip") }) invisible() } # Extract the commit hash from a git archive. Git archives include the SHA1 # hash as the comment field of the tarball pax extended header # (see https://www.kernel.org/pub/software/scm/git/docs/git-archive.html) # For GitHub archives this should be the first header after the default one # (512 byte) header. renv_bootstrap_git_extract_sha1_tar <- function(bundle) { # open the bundle for reading # We use gzcon for everything because (from ?gzcon) # > Reading from a connection which does not supply a 'gzip' magic # > header is equivalent to reading from the original connection conn <- gzcon(file(bundle, open = "rb", raw = TRUE)) on.exit(close(conn)) # The default pax header is 512 bytes long and the first pax extended header # with the comment should be 51 bytes long # `52 comment=` (11 chars) + 40 byte SHA1 hash len <- 0x200 + 0x33 res <- rawToChar(readBin(conn, "raw", n = len)[0x201:len]) if (grepl("^52 comment=", res)) { sub("52 comment=", "", res) } else { NULL } } renv_bootstrap_install <- function(version, tarball, library) { # attempt to install it into project library dir.create(library, showWarnings = FALSE, recursive = TRUE) output <- renv_bootstrap_install_impl(library, tarball) # check for successful install status <- attr(output, "status") if (is.null(status) || identical(status, 0L)) return(status) # an error occurred; report it header <- "installation of renv failed" lines <- paste(rep.int("=", nchar(header)), collapse = "") text <- paste(c(header, lines, output), collapse = "\n") stop(text) } renv_bootstrap_install_impl <- function(library, tarball) { # 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", "--no-multiarch", "-l", shQuote(path.expand(library)), shQuote(path.expand(tarball)) ) system2(R, args, stdout = TRUE, stderr = TRUE) } 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) { prefix <- renv_bootstrap_profile_prefix() path <- Sys.getenv("RENV_PATHS_LIBRARY", unset = NA) if (!is.na(path)) return(paste(c(path, prefix), collapse = "/")) path <- renv_bootstrap_library_root_impl(project) if (!is.null(path)) { name <- renv_bootstrap_library_root_name(project) return(paste(c(path, prefix, name), collapse = "/")) } renv_bootstrap_paths_renv("library", project = project) } renv_bootstrap_library_root_impl <- function(project) { root <- Sys.getenv("RENV_PATHS_LIBRARY_ROOT", unset = NA) if (!is.na(root)) return(root) type <- renv_bootstrap_project_type(project) if (identical(type, "package")) { userdir <- renv_bootstrap_user_dir() return(file.path(userdir, "library")) } } renv_bootstrap_validate_version <- function(version, description = NULL) { # resolve description file # # avoid passing lib.loc to `packageDescription()` below, since R will # use the loaded version of the package by default anyhow. note that # this function should only be called after 'renv' is loaded # https://github.com/rstudio/renv/issues/1625 description <- description %||% packageDescription("renv") # check whether requested version 'version' matches loaded version of renv sha <- attr(version, "sha", exact = TRUE) valid <- if (!is.null(sha)) renv_bootstrap_validate_version_dev(sha, description) else renv_bootstrap_validate_version_release(version, description) if (valid) return(TRUE) # the loaded version of renv doesn't match the requested version; # give the user instructions on how to proceed remote <- if (!is.null(description[["RemoteSha"]])) { paste("rstudio/renv", description[["RemoteSha"]], sep = "@") } else { paste("renv", description[["Version"]], sep = "@") } # display both loaded version + sha if available friendly <- renv_bootstrap_version_friendly( version = description[["Version"]], sha = description[["RemoteSha"]] ) 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" ) catf(fmt, friendly, renv_bootstrap_version_friendly(version), remote) FALSE } renv_bootstrap_validate_version_dev <- function(version, description) { expected <- description[["RemoteSha"]] is.character(expected) && startswith(expected, version) } renv_bootstrap_validate_version_release <- function(version, description) { expected <- description[["Version"]] is.character(expected) && identical(expected, version) } 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) # execute renv load hooks, if any hooks <- getHook("renv::autoload") for (hook in hooks) if (is.function(hook)) tryCatch(hook(), error = warnify) # 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 <- renv_bootstrap_paths_renv("profile", profile = FALSE, project = project) 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 (!profile %in% c("", "default")) Sys.setenv(RENV_PROFILE = profile) profile } renv_bootstrap_profile_prefix <- function() { profile <- renv_bootstrap_profile_get() if (!is.null(profile)) return(file.path("profiles", profile, "renv")) } 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 } renv_bootstrap_path_absolute <- function(path) { substr(path, 1L, 1L) %in% c("~", "/", "\\") || ( substr(path, 1L, 1L) %in% c(letters, LETTERS) && substr(path, 2L, 3L) %in% c(":/", ":\\") ) } renv_bootstrap_paths_renv <- function(..., profile = TRUE, project = NULL) { renv <- Sys.getenv("RENV_PATHS_RENV", unset = "renv") root <- if (renv_bootstrap_path_absolute(renv)) NULL else project prefix <- if (profile) renv_bootstrap_profile_prefix() components <- c(root, renv, prefix, ...) paste(components, collapse = "/") } renv_bootstrap_project_type <- function(path) { descpath <- file.path(path, "DESCRIPTION") if (!file.exists(descpath)) return("unknown") desc <- tryCatch( read.dcf(descpath, all = TRUE), error = identity ) if (inherits(desc, "error")) return("unknown") type <- desc$Type if (!is.null(type)) return(tolower(type)) package <- desc$Package if (!is.null(package)) return("package") "unknown" } renv_bootstrap_user_dir <- function() { dir <- renv_bootstrap_user_dir_impl() path.expand(chartr("\\", "/", dir)) } renv_bootstrap_user_dir_impl <- function() { # use local override if set override <- getOption("renv.userdir.override") if (!is.null(override)) return(override) # use R_user_dir if available tools <- asNamespace("tools") if (is.function(tools$R_user_dir)) return(tools$R_user_dir("renv", "cache")) # try using our own backfill for older versions of R envvars <- c("R_USER_CACHE_DIR", "XDG_CACHE_HOME") for (envvar in envvars) { root <- Sys.getenv(envvar, unset = NA) if (!is.na(root)) return(file.path(root, "R/renv")) } # use platform-specific default fallbacks if (Sys.info()[["sysname"]] == "Windows") file.path(Sys.getenv("LOCALAPPDATA"), "R/cache/R/renv") else if (Sys.info()[["sysname"]] == "Darwin") "~/Library/Caches/org.R-project.R/R/renv" else "~/.cache/R/renv" } renv_bootstrap_version_friendly <- function(version, shafmt = NULL, sha = NULL) { sha <- sha %||% attr(version, "sha", exact = TRUE) parts <- c(version, sprintf(shafmt %||% " [sha: %s]", substring(sha, 1L, 7L))) paste(parts, collapse = "") } renv_bootstrap_exec <- function(project, libpath, version) { if (!renv_bootstrap_load(project, libpath, version)) renv_bootstrap_run(version, libpath) } renv_bootstrap_run <- function(version, libpath) { # 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)) { return(renv::load(project = getwd())) } # 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) } renv_json_read <- function(file = NULL, text = NULL) { jlerr <- NULL # if jsonlite is loaded, use that instead if ("jsonlite" %in% loadedNamespaces()) { json <- catch(renv_json_read_jsonlite(file, text)) if (!inherits(json, "error")) return(json) jlerr <- json } # otherwise, fall back to the default JSON reader json <- catch(renv_json_read_default(file, text)) if (!inherits(json, "error")) return(json) # report an error if (!is.null(jlerr)) stop(jlerr) else stop(json) } renv_json_read_jsonlite <- function(file = NULL, text = NULL) { text <- paste(text %||% read(file), collapse = "\n") jsonlite::fromJSON(txt = text, simplifyVector = FALSE) } renv_json_read_default <- function(file = NULL, text = NULL) { # find strings in the JSON text <- paste(text %||% read(file), collapse = "\n") pattern <- '["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]' locs <- gregexpr(pattern, text, perl = TRUE)[[1]] # if any are found, replace them with placeholders replaced <- text strings <- character() replacements <- character() if (!identical(c(locs), -1L)) { # get the string values starts <- locs ends <- locs + attr(locs, "match.length") - 1L strings <- substring(text, starts, ends) # only keep those requiring escaping strings <- grep("[[\\]{}:]", strings, perl = TRUE, value = TRUE) # compute replacements replacements <- sprintf('"\032%i\032"', seq_along(strings)) # replace the strings mapply(function(string, replacement) { replaced <<- sub(string, replacement, replaced, fixed = TRUE) }, strings, replacements) } # transform the JSON into something the R parser understands transformed <- replaced transformed <- gsub("{}", "`names<-`(list(), character())", transformed, fixed = TRUE) transformed <- gsub("[[{]", "list(", transformed, perl = TRUE) transformed <- gsub("[]}]", ")", transformed, perl = TRUE) transformed <- gsub(":", "=", transformed, fixed = TRUE) text <- paste(transformed, collapse = "\n") # parse it json <- parse(text = text, keep.source = FALSE, srcfile = NULL)[[1L]] # construct map between source strings, replaced strings map <- as.character(parse(text = strings)) names(map) <- as.character(parse(text = replacements)) # convert to list map <- as.list(map) # remap strings in object remapped <- renv_json_remap(json, map) # evaluate eval(remapped, envir = baseenv()) } renv_json_remap <- function(json, map) { # fix names if (!is.null(names(json))) { lhs <- match(names(json), names(map), nomatch = 0L) rhs <- match(names(map), names(json), nomatch = 0L) names(json)[rhs] <- map[lhs] } # fix values if (is.character(json)) return(map[[json]] %||% json) # handle true, false, null if (is.name(json)) { text <- as.character(json) if (text == "true") return(TRUE) else if (text == "false") return(FALSE) else if (text == "null") return(NULL) } # recurse if (is.recursive(json)) { for (i in seq_along(json)) { json[i] <- list(renv_json_remap(json[[i]], map)) } } json } # 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) # run bootstrap code renv_bootstrap_exec(project, libpath, version) invisible() })