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# ---
# repo: r-lib/rlang
# file: standalone-linked-version.R
# last-updated: 2022-05-26
# license: https://unlicense.org
# imports: rlang (>= 1.0.0)
# ---
#
# nocov start
check_linked_version <- local({
# Keep in sync with standalone-downstream-deps.R
howto_reinstall_msg <- function(pkg) {
os <- tolower(Sys.info()[["sysname"]])
if (os == "windows") {
url <- "https://github.com/jennybc/what-they-forgot/issues/62"
c(
i = sprintf("Please update %s to the latest version.", pkg),
i = sprintf("Updating packages on Windows requires precautions:\n <%s>", url)
)
} else {
c(
i = sprintf("Please update %s with `install.packages(\"%s\")` and restart R.", pkg, pkg)
)
}
}
function(pkg, with_rlang = requireNamespace("rlang", quietly = TRUE)) {
ver <- utils::packageVersion(pkg)
ns <- asNamespace(pkg)
linked_ver_ptr <- ns[[paste0(pkg, "_linked_version")]]
if (is.null(linked_ver_ptr)) {
linked_ver <- ""
} else {
# Construct call to avoid NOTE when argument to `.Call()` is not
# statically analysable
linked_ver <- do.call(".Call", list(linked_ver_ptr))
}
if (nzchar(linked_ver) && ver == linked_ver) {
return(invisible(NULL))
}
header <- sprintf("The %s package is not properly installed.", pkg)
if (nzchar(linked_ver)) {
msg <- c(x = sprintf(
"The DLL version (%s) does not correspond to the package version (%s).",
linked_ver,
ver
))
} else {
# Package does not have a version pointer. This happens when DLL
# updating fails for the first version that includes the pointer.
msg <- c(x = "The DLL version does not correspond to the package version.")
}
msg <- c(msg, howto_reinstall_msg(pkg))
if (with_rlang) {
msg <- paste(header, rlang::format_error_bullets(msg), sep = "\n")
rlang::abort(msg)
} else {
msg <- paste(c(header, msg), collapse = "\n")
stop(msg, call. = FALSE)
}
}
})
# nocov end
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