134 lines
4.2 KiB
Common Lisp
134 lines
4.2 KiB
Common Lisp
;;;; -*- mode: lisp; coding: utf-8; tab-width: 4; fill-column: 100; indent-tabs-mode: nil; -*-
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;;;; main.lisp
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;;;; Provide general functions.
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(defpackage dev.metalisp.sbt
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(:use :cl)
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(:export
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:*l10n*
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:find-l10n
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:*use-cdn*
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:*cdn-css-url*
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:*cdn-js-url*
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:*local-css-url*
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:*local-js-url*
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:*bs-version*
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:*color-theme*
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:download-bs-css
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:download-bs-js
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:write-html-to-file
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:with-page))
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(in-package :dev.metalisp.sbt)
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(defparameter spinneret:*fill-column* 120)
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(defparameter *bs-version* "5.3.2")
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(defparameter *use-cdn* t)
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(defparameter *cdn-css-url*
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(concatenate 'string
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"https://cdn.jsdelivr.net/npm/bootstrap@"
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*bs-version*
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"/dist/css/bootstrap.min.css"))
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(defparameter *cdn-js-url*
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(concatenate 'string
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"https://cdn.jsdelivr.net/npm/bootstrap@"
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*bs-version*
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"/dist/js/bootstrap.bundle.min.js"))
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(defparameter *bs-path*
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(concatenate 'string
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"public/"
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*bs-version*
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"/"))
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(defparameter *local-css-url*
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(concatenate 'string
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*bs-path*
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"bootstrap.min.css"))
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(defparameter *local-js-url*
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(concatenate 'string
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*bs-path*
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"bootstrap.bundle.min.js"))
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(defparameter *color-theme* "dark")
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(defun bs-css-url ()
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(if *use-cdn*
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*cdn-css-url*
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*local-css-url*))
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(defun bs-js-url ()
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(if *use-cdn*
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*cdn-js-url*
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*local-js-url*))
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(defun download-file (url directory)
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"Downloads a file from a given URL and saves it to the specified directory."
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(let* ((filename (car (last (uiop:split-string url :separator "/"))))
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(filepath (merge-pathnames filename directory)))
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(ensure-directories-exist directory)
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(let ((content (dex:get url)))
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(with-open-file (stream filepath
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:direction :output
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:if-exists :supersede
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:if-does-not-exist :create)
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(write-string content stream)))
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filepath))
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(defmacro define-download-function (name url directory)
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`(defun ,name (&optional (directory ,directory))
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(download-file ,url directory)))
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(define-download-function download-bs-css *cdn-css-url* *bs-path*)
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(define-download-function download-bs-js *cdn-js-url* *bs-path*)
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(defun write-html-str-to-file (filename string &key (lang "en") (style :tree) (fc 120))
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(let ((spinneret:*html-lang* lang)
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(spinneret:*html-style* style)
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(spinneret:*fill-column* fc))
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(with-open-file (stream filename :direction :output :if-exists :supersede)
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(write-string string stream))))
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(defmacro with-page ((&key meta (title "Web page") main-con add-css-urls add-js-urls) &body body)
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"This macro simplifies the process of creating an HTML web page.
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META: The meta-information for the web page.
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TITLE: Specifies the title of the web page. Defaults to 'Web page'.
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MAIN-CON: If t add css class `container` to <main>.
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ADD-CSS-URLS: An optional parameter for additional CSS file URLs.
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ADD-JS-URLS: An optional parameter for additional JavaScript file URLs.
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BODY: Denotes the markup for the body of the web page.
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Example usage:
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(with-page (:meta (:author \"John Doe\") :title \"My Page\" :main-con t) \"foo\")"
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`(spinneret:with-html
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(:doctype)
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(:html :data-bs-theme ,*color-theme*
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(:head (:meta :charset "utf-8")
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(:meta :name "viewport" :content "width=device-width, initial-scale=1")
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,@(loop for (key value) on meta by #'cddr
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collect `(:meta :name
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,(string-downcase (symbol-name key))
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:content ,(getf meta key)))
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(:title ,title)
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(:link :type "text/css" :rel "stylesheet" :href ,(bs-css-url))
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,@(loop for url in add-css-urls
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collect `(:link :type "text/css" :rel "stylesheet" :href ,url)))
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(:body (:h1 :class "visually-hidden" ,title)
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(:main ,@(when main-con (list :class "container")) ,@body)
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(:script :src ,(bs-js-url))
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,@(loop for url in add-js-urls
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collect `(:script :src ,url))))))
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