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| ;;; package-build-badges.el --- Create badges for packages -*- lexical-binding:t; coding:utf-8 -*- | ||
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| ;; Copyright (C) 2011-2023 Donald Ephraim Curtis | ||
| ;; Copyright (C) 2012-2023 Steve Purcell | ||
| ;; Copyright (C) 2018-2023 Jonas Bernoulli | ||
| ;; Copyright (C) 2021-2023 Free Software Foundation, Inc | ||
| ;; Copyright (C) 2009 Phil Hagelberg | ||
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| ;; Author: Donald Ephraim Curtis <[email protected]> | ||
| ;; Homepage: https://github.com/melpa/package-build | ||
| ;; Keywords: maint tools | ||
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| ;; SPDX-License-Identifier: GPL-3.0-or-later | ||
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| ;; This file is free software: you can redistribute it and/or modify | ||
| ;; it under the terms of the GNU General Public License as published | ||
| ;; by the Free Software Foundation, either version 3 of the License, | ||
| ;; or (at your option) any later version. | ||
| ;; | ||
| ;; This file is distributed in the hope that it will be useful, | ||
| ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| ;; GNU General Public License for more details. | ||
| ;; | ||
| ;; You should have received a copy of the GNU General Public License | ||
| ;; along with this file. If not, see <https://www.gnu.org/licenses/>. | ||
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| ;;; Commentary: | ||
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| ;; Create badges for packages. | ||
| ;; The code in this file was lifted from `elpa-admin'. | ||
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| ;;; Code: | ||
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| (defvar package-build-badge-data) | ||
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| (defun package-build--write-badge-image ( name version target-dir | ||
| &optional archive color) | ||
| "Make badge svg file. | ||
| This is essentially a copy of `elpaa--make-badge'." | ||
| (let* ((file (expand-file-name (concat name "-badge.svg") target-dir)) | ||
| (left (or archive (car package-build-badge-data) "myElpa")) | ||
| (right (url-hexify-string version)) | ||
| (color (or color (cadr package-build-badge-data) "#ff491b")) | ||
| (lw (package-build-badge--string-width left)) | ||
| (rw (package-build-badge--string-width right)) | ||
| (pad (package-build-badge--string-width "x")) | ||
| (width (/ (+ lw rw (* 4 pad)) 10)) | ||
| (offset -10) ;; Small alignment correction | ||
| (ctx `((offset . ,offset) | ||
| (left . ,left) | ||
| (right . ,right) | ||
| (lw . ,lw) | ||
| (rw . ,rw) | ||
| (width . ,width) | ||
| (color . ,color) | ||
| (pad . ,pad)))) | ||
| (with-temp-buffer | ||
| (insert | ||
| (replace-regexp-in-string | ||
| "{\\([^}]+\\)}" | ||
| (lambda (str) | ||
| (url-insert-entities-in-string | ||
| (format "%s" (eval (read (match-string 1 str)) ctx)))) | ||
| (eval-when-compile | ||
| (replace-regexp-in-string | ||
| "[ \t\n]+" " " | ||
| (replace-regexp-in-string | ||
| "'" "\"" | ||
| "<?xml version='1.0'?> | ||
| <svg xmlns='http://www.w3.org/2000/svg' | ||
| xmlns:xlink='http://www.w3.org/1999/xlink' | ||
| width='{width}' | ||
| height='20' | ||
| role='img' | ||
| aria-label='{left}: {right}'> | ||
| <title>{left}: {right}</title> | ||
| <linearGradient id='s' x2='0' y2='100%'> | ||
| <stop offset='0' stop-color='#bbb' stop-opacity='.1'/> | ||
| <stop offset='1' stop-opacity='.1'/> | ||
| </linearGradient> | ||
| <clipPath id='r'> | ||
| <rect width='{width}' height='20' rx='3' fill='#fff'/> | ||
| </clipPath> | ||
| <g clip-path='url(#r)'> | ||
| <rect width='{(/ (+ lw (* 2 pad)) 10)}' | ||
| height='20' fill='#555'/> | ||
| <rect x='{(1- (/ (+ lw (* 2 pad)) 10))}' | ||
| width='{width}' height='20' fill='{color}'/> | ||
| <rect width='{width}' height='20' fill='url(#s)'/> | ||
| </g> | ||
| <g fill='#fff' | ||
| text-anchor='middle' | ||
| font-family='Verdana,Geneva,DejaVu Sans,sans-serif' | ||
| font-size='110' | ||
| text-rendering='geometricPrecision'> | ||
| <text aria-hidden='true' | ||
| x='{(+ (/ lw 2) pad offset)}' | ||
| y='150' | ||
| fill='#010101' fill-opacity='.3' | ||
| transform='scale(.1)' textLength='{lw}'>{left}</text> | ||
| <text x='{(+ (/ lw 2) pad offset)}' | ||
| y='140' transform='scale(.1)' | ||
| fill='#fff' | ||
| textLength='{lw}'>{left}</text> | ||
| <text aria-hidden='true' | ||
| x='{(+ lw (/ rw 2) (* 3 pad) offset)}' | ||
| y='150' | ||
| fill='#010101' fill-opacity='.3' | ||
| transform='scale(.1)' textLength='{rw}'>{right}</text> | ||
| <text x='{(+ lw (/ rw 2) (* 3 pad) offset)}' | ||
| y='140' | ||
| transform='scale(.1)' | ||
| fill='#fff' textLength='{rw}'>{right}</text> | ||
| </g> | ||
| </svg>"))))) | ||
| (write-region (point-min) (point-max) file)))) | ||
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| (defun package-build-badge--string-width (str) | ||
| "Determine string width in pixels of STR." | ||
| (with-temp-buffer | ||
| ;; ImageMagick 7.1.0 or later requires using the "magick" driver, | ||
| ;; rather than "convert" directly, but Debian doesn't provide it | ||
| ;; yet (2021). | ||
| (let ((args `(,@(if (executable-find "magick") | ||
| '("magick" "convert") | ||
| '("convert")) | ||
| "-debug" "annotate" "xc:" "-font" "DejaVu-Sans" | ||
| "-pointsize" "110" "-annotate" "0" ,str "null:"))) | ||
| (apply #'call-process (car args) nil t nil (delq nil (cdr args))) | ||
| (goto-char (point-min)) | ||
| (if (not (re-search-forward "Metrics:.*?width: \\([0-9]+\\)")) | ||
| (error "Could not determine string width") | ||
| (let ((width (string-to-number (match-string 1)))) | ||
| ;; This test aims to catch the case where the font is missing, | ||
| ;; but it seems it only works in some cases :-( | ||
| (if (and (> (string-width str) 0) (not (> width 0))) | ||
| (progn (message "convert:\n%s" (buffer-string)) | ||
| (error "Could not determine string width")) | ||
| width)))))) | ||
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| (provide 'package-build-badges) | ||
| ;;; package-badges.el ends here |
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