has_citation <- function(path = ".") {
file_exists(path(path, 'inst/CITATION'))
}
create_citation_meta <- function(path) {
path <- path(path, "DESCRIPTION")
dcf <- read.dcf(path)
meta <- as.list(dcf[1, ])
if (!is.null(meta$Encoding)) {
meta <- lapply(meta, iconv, from = meta$Encoding, to = "UTF-8")
} else {
meta$Encoding <- "UTF-8"
}
meta
}
read_citation <- function(path = ".") {
if (!has_citation(path)) {
return(character())
}
meta <- create_citation_meta(path)
cit_path <- path(path, 'inst/CITATION')
utils::readCitationFile(cit_path, meta = meta)
}
data_home_sidebar_citation <- function(pkg = ".") {
pkg <- as_pkgdown(pkg)
if (!has_citation(pkg$src_path)) {
return(character())
}
citation <- paste0("<a href='authors.html'>Citing ", pkg$package, "</li>")
sidebar_section("Citation", citation)
}
data_citations <- function(pkg = ".") {
pkg <- as_pkgdown(pkg)
cit <- read_citation(pkg$src_path)
text_version <- format(cit, style = "textVersion")
if (identical(text_version, "")) {
cit <- list(
html = format(cit, style = "html"),
bibtex = format(cit, style = "bibtex")
)
} else {
cit <- list(
html = paste0("<p>",text_version, "</p>"),
bibtex = format(cit, style = "bibtex")
)
}
purrr::transpose(cit)
}
build_citation_authors <- function(pkg = ".") {
pkg <- as_pkgdown(pkg)
source <- repo_source(pkg, "inst/CITATION")
data <- list(
pagetitle = "Citation and Authors",
citations = data_citations(pkg),
authors = unname(data_authors(pkg)$all),
source = source
)
render_page(pkg, "citation-authors", data, "authors.html")
}
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