86 lines
2.0 KiB
R
86 lines
2.0 KiB
R
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#! /usr/bin/env Rscript
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setup_app <- function() {
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theme <- list(
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"url" = list(color = "blue"),
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".pkg" = list(color = "orange"))
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start_app(theme = theme, output = "stdout")
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}
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load_packages <- function() {
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tryCatch({
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library(cliapp)
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library(pkgsearch)
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library(docopt)
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library(prettyunits)
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error = function(e) {
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cli_alert_danger(
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"The {.pkg pkgsearch}, {.pkg prettyunits} and {.pkg docopt} packages are needed!")
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q(save = "no", status = 1)
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}
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})
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}
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search <- function(terms, from = 1, size = 5) {
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load_packages()
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setup_app()
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term <- paste(encodeString(quote = '"', terms), collapse = " ")
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result <- do_query(term, from = from, size = size)
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format_result(result, from = from, size = size)
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invisible()
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}
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`%||%` <- function(l, r) if (is.null(l)) r else l
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do_query <- function(query, from, size) {
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cli_alert_info("Searching...")
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pkg_search(query, from = from, size = size)
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}
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format_result <- function(obj, from, size) {
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meta <- attr(obj, "metadata")
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if (!meta$total) {
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cli_alert_danger("No results :(")
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return()
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}
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cli_alert_success("Found {meta$total} packages in {pretty_ms(meta$took)}")
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cli_text()
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cli_div(theme = list(ul = list("list-style-type" = "")))
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cli_ol()
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lapply(seq_len(nrow(obj)), function(i) format_hit(obj[i,]))
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}
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format_hit <- function(hit) {
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ago <- vague_dt(Sys.time() - hit$date)
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cli_li()
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cli_text("{.pkg {hit$package}} {hit$version} --
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{.emph {hit$title}}")
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cli_par()
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cli_text(hit$description)
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cli_text("{.emph {ago} by {hit$maintainer_name}}")
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}
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parse_arguments <- function() {
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"Usage:
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cransearch.R [-h | --help] [ -f from ] [ -n size ] <term>...
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Options:
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-h --help Print this help message
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-f first First hit to include
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-n size Number of hits to include
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Seach for CRAN packages on r-pkg.org
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" -> doc
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docopt(doc)
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}
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if (is.null(sys.calls())) {
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load_packages()
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opts <- parse_arguments()
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search(opts$term,
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from = as.numeric(opts$f %||% 1),
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size = as.numeric(opts$n %||% 5))
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}
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