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<?php |
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/* |
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* Copyright (c) Arnaud Ligny <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Cecil\Step; |
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use Cecil\Collection\Page\Page; |
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use Cecil\Exception\Exception; |
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use Cecil\Renderer\Layout; |
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use Cecil\Renderer\Twig as Twig; |
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/** |
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* Pages rendering. |
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*/ |
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class PagesRender extends AbstractStep |
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{ |
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/** |
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* {@inheritdoc} |
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* |
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* @throws Exception |
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*/ |
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public function init($options) |
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{ |
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if (!is_dir($this->config->getLayoutsPath()) && !$this->config->hasTheme()) { |
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throw new Exception(sprintf( |
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"'%s' is not a valid layouts directory", |
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$this->config->getLayoutsPath() |
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)); |
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} |
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$this->process = true; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @throws Exception |
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*/ |
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public function process() |
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{ |
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// prepares renderer |
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$this->builder->setRenderer(new Twig($this->getAllLayoutsPaths(), $this->config)); |
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// add globals variables |
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$this->addGlobals(); |
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call_user_func_array($this->builder->getMessageCb(), ['RENDER', 'Rendering pages']); |
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// collect published pages |
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/* @var $page Page */ |
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$filteredPages = $this->builder->getPages()->filter(function (Page $page) { |
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return !empty($page->getVariable('published')); |
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}); |
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$max = count($filteredPages); |
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// render each page |
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$count = 0; |
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/* @var $page Page */ |
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foreach ($filteredPages as $page) { |
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$count++; |
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$formats = ['html']; |
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$rendered = null; |
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$alternates = []; |
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// get page's output formats |
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$formats = $this->getFormats($page); |
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$page->setVariable('output', $formats); |
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// get pages's alternates links |
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$alternates = $this->getAlternates($page, $formats); |
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$page->setVariable('alternates', $alternates); |
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// render each output format |
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foreach ($formats as $format) { |
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// escape redirect pages |
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if ($format != 'html' && $page->hasVariable('destination')) { |
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continue; |
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} |
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// search for the template |
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$layout = Layout::finder($page, $format, $this->config); |
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// render with Twig |
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$rendered[$format]['output'] = $this->builder->getRenderer()->render( |
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$layout, |
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['page' => $page] |
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); |
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$rendered[$format]['template'] = $layout; |
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} |
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$page->setVariable('rendered', $rendered); |
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$this->builder->getPages()->replace($page->getId(), $page); |
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$layouts = implode(', ', array_column($rendered, 'template')); |
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$message = sprintf('%s (%s)', ($page->getId() ?: 'index'), $layouts); |
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call_user_func_array($this->builder->getMessageCb(), ['RENDER_PROGRESS', $message, $count, $max]); |
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} |
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} |
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/** |
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* Return an array of layouts directories. |
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* |
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* @return array |
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*/ |
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protected function getAllLayoutsPaths(): array |
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{ |
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$paths = []; |
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// layouts/ |
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if (is_dir($this->config->getLayoutsPath())) { |
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$paths[] = $this->config->getLayoutsPath(); |
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} |
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// <theme>/layouts/ |
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if ($this->config->hasTheme()) { |
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$themes = $this->config->getTheme(); |
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foreach ($themes as $theme) { |
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$paths[] = $this->config->getThemeDirPath($theme); |
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} |
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} |
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// res/layouts/ |
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if (is_dir($this->config->getInternalLayoutsPath())) { |
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$paths[] = $this->config->getInternalLayoutsPath(); |
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} |
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return $paths; |
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} |
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/** |
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* Add globals variables. |
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*/ |
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protected function addGlobals() |
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{ |
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// adds global variables |
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$this->builder->getRenderer()->addGlobal('site', array_merge( |
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$this->config->get('site'), |
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['menus' => $this->builder->getMenus()], |
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['pages' => $this->builder->getPages()->filter(function (Page $page) { |
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return $page->getVariable('published'); |
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})], |
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['time' => time()] |
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)); |
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$this->builder->getRenderer()->addGlobal('cecil', [ |
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'url' => sprintf('https://cecil.app/#%s', $this->builder->getVersion()), |
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'version' => $this->builder->getVersion(), |
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'poweredby' => sprintf('Cecil v%s', $this->builder->getVersion()), |
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]); |
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} |
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/** |
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* Get available formats. |
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* |
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* @param Page $page |
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* |
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* @return array |
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*/ |
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protected function getFormats(Page $page): array |
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{ |
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$formats = []; |
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// Get page format(s). |
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// ie: "output: txt" |
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if ($page->getVariable('output')) { |
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$formats = $page->getVariable('output'); |
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if (!\is_array($formats)) { |
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$formats = [$formats]; |
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} |
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} else { |
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// get available formats for page type |
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// ie: "'page' => ['html', 'json']" |
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if (\is_array($this->config->get('site.output.pagetypeformats.'.$page->getType()))) { |
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$formats = $this->config->get('site.output.pagetypeformats.'.$page->getType()); |
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} |
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} |
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return $formats; |
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} |
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/** |
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* Get page's alternates. |
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* |
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* @param Page $page |
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* @param array $formats |
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* |
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* @return array |
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* |
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* @todo do it better! :-D |
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*/ |
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protected function getAlternates(Page $page, array $formats): array |
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{ |
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$alternates = []; |
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if (count($formats) > 1 && array_key_exists('html', $formats)) { |
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foreach ($formats as $format) { |
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if ($format == 'html') { |
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$alternates[] = [ |
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'rel' => 'canonical', |
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'type' => $this->config->get('site.output.formats.html.mediatype'), |
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'title' => 'HTML', |
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'href' => $page->getPathname(), // you should use use "url()" in template |
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]; |
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continue; |
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} |
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$alternates[] = [ |
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'rel' => 'alternate', |
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'type' => $this->config->get("site.output.formats.$format.mediatype"), |
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'title' => strtoupper($format), |
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'href' => $page->getPathname(), // should use "url()" in template |
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]; |
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} |
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} |
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return $alternates; |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.