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bs3_sass_files <- function(x) {
bs_sass_files(x, version = 3)
}
bs4_sass_files <- function(x) {
bs_sass_files(x, version = 4)
}
bs5_sass_files <- function(x) {
bs_sass_files(x, version = 5)
}
bs_sass_files <- function(files, version) {
lapply(files, bs_sass_file, version = version)
}
# Search for one file at a time so we can throw informative errors
bs_sass_file <- function(file, version) {
if (length(file) != 1) stop("file should be of length 1")
file <- file.path(
dirname(file),
paste0("_", basename(file), ".scss")
)
f <- switch_version(
version,
five = path_lib("bs5", "scss", file),
four = path_lib("bs4", "scss", file),
three = path_lib("bs3", "assets", "stylesheets", "bootstrap", file)
)
if (f == "")
stop("The bootstrap stylesheet '", file, "' doesn't exist.", call. = FALSE)
sass_file(f)
}
bootswatch_sass_file <- function(theme, file, version = version_default()) {
if (length(file) > 1) stop("file should be of length 1")
theme <- match.arg(theme, bootswatch_themes(version))
file <- paste0("_", file, ".scss")
f <- file.path(bootswatch_dist(version), theme, file)
if (file.exists(f)) return(sass_file(f))
stop(
"Bootswatch file '",
file,
"' doesn't exist for theme '",
theme,
"'.",
call. = FALSE
)
}
# Given a vector of sass_file()s, create a list of sass_bundles(),
# so each rule may be removed layer (by it's files basename)
rule_bundles <- function(files) {
files <- lapply(files, as_sass_file)
paths <- vapply(files, get_sass_file_path, character(1))
nms <- tools::file_path_sans_ext(basename(paths))
Map(
nms,
files,
f = function(nm, f) {
sass_bundle(!!nm := sass_layer(rules = f))
}
)
}
get_sass_file_path <- function(x) {
path <- attr(x, "sass_file_path")
if (length(path)) return(path)
stop("Couldn't find file path")
}
as_sass_file <- function(x) {
if (inherits(x, "sass_file")) x else sass_file(x)
}
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