Completed
Push — master ( 0ba1b3...937b8a )
by Vladimir
02:47
created

Compiler::compileAll()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 7
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 4
CRAP Score 2

Importance

Changes 0
Metric Value
cc 2
eloc 3
nc 2
nop 0
dl 0
loc 7
ccs 4
cts 4
cp 1
crap 2
rs 9.4285
c 0
b 0
f 0
1
<?php
2
3
/**
4
 * @copyright 2017 Vladimir Jimenez
5
 * @license   https://github.com/allejo/stakx/blob/master/LICENSE.md MIT
6
 */
7
8
namespace allejo\stakx;
9
10
use allejo\stakx\Command\BuildableCommand;
11
use allejo\stakx\Document\ContentItem;
12
use allejo\stakx\Document\DynamicPageView;
13
use allejo\stakx\Document\PageView;
14
use allejo\stakx\Document\RepeaterPageView;
15
use allejo\stakx\Exception\FileAwareException;
16
use allejo\stakx\FrontMatter\ExpandedValue;
17
use allejo\stakx\Manager\BaseManager;
18
use allejo\stakx\Manager\ThemeManager;
19
use allejo\stakx\Manager\TwigManager;
20
use allejo\stakx\System\Folder;
21
use Twig_Environment;
22
use Twig_Error_Runtime;
23
use Twig_Error_Syntax;
24
use Twig_Source;
25
use Twig_Template;
26
27
/**
28
 * This class takes care of rendering the Twig body of PageViews with the respective information and it also takes care
29
 * of writing the rendered Twig to the filesystem.
30
 *
31
 * @internal
32
 *
33
 * @since 0.1.1
34
 */
35
class Compiler extends BaseManager
36
{
37
    /** @var string|false */
38
    private $redirectTemplate;
39
40
    /** @var Twig_Template[] */
41
    private $templateDependencies;
42
43
    /** @var PageView[] */
44
    private $pageViewsFlattened;
45
46
    /** @var string[] */
47
    private $templateMapping;
48
49
    /** @var PageView[][] */
50
    private $pageViews;
51
52
    /** @var Folder */
53
    private $folder;
54
55
    /** @var string */
56
    private $theme;
57
58
    /** @var Twig_Environment */
59
    private $twig;
60
61 14
    public function __construct()
62
    {
63 14
        parent::__construct();
64
65 14
        $this->twig = TwigManager::getInstance();
66 14
        $this->theme = '';
67 14
    }
68
69
    /**
70
     * @param string|false $template
71
     */
72
    public function setRedirectTemplate($template)
73
    {
74
        $this->redirectTemplate = $template;
75
    }
76
77
    /**
78
     * @param Folder $folder
79
     */
80 14
    public function setTargetFolder(Folder $folder)
81
    {
82 14
        $this->folder = $folder;
83 14
    }
84
85
    /**
86
     * @param PageView[][] $pageViews
87
     * @param PageView[]   $pageViewsFlattened
88
     */
89 14
    public function setPageViews(array &$pageViews, array &$pageViewsFlattened)
90
    {
91 14
        $this->pageViews = &$pageViews;
92 14
        $this->pageViewsFlattened = &$pageViewsFlattened;
93 14
    }
94
95
    /**
96
     * @param string $themeName
97
     */
98
    public function setThemeName($themeName)
99
    {
100
        $this->theme = $themeName;
101
    }
102
103
    ///
104
    // Twig parent templates
105
    ///
106
107
    /**
108
     * Check whether a given file path is used as a parent template by a PageView
109
     *
110
     * @param  string $filePath
111
     *
112
     * @return bool
113
     */
114
    public function isParentTemplate($filePath)
115
    {
116
        return isset($this->templateDependencies[$filePath]);
117
    }
118
119
    /**
120
     * Rebuild all of the PageViews that used a given template as a parent
121
     *
122
     * @param string $filePath The file path to the parent Twig template
123
     */
124
    public function refreshParent($filePath)
125
    {
126
        foreach ($this->templateDependencies[$filePath] as &$parentTemplate)
0 ignored issues
show
Bug introduced by
The expression $this->templateDependencies[$filePath] of type object<Twig_Template> is not traversable.
Loading history...
127
        {
128
            $this->compilePageView($parentTemplate);
129
        }
130
    }
131
132
    public function getTemplateMappings()
133
    {
134
        return $this->templateMapping;
135
    }
136
137
    ///
138
    // IO Functionality
139
    ///
140
141
    /**
142
     * Compile all of the PageViews registered with the compiler.
143
     *
144
     * @since 0.1.0
145
     */
146 14
    public function compileAll()
147
    {
148 14
        foreach ($this->pageViewsFlattened as &$pageView)
149
        {
150 14
            $this->compilePageView($pageView);
151
        }
152 14
    }
153
154
    public function compileSome($filter = array())
155
    {
156
        /** @var PageView $pageView */
157
        foreach ($this->pageViewsFlattened as &$pageView)
158
        {
159
            if ($pageView->hasTwigDependency($filter['namespace'], $filter['dependency']))
160
            {
161
                $this->compilePageView($pageView);
162
            }
163
        }
164
    }
165
166
    /**
167
     * Compile an individual PageView item.
168
     *
169
     * This function will take care of determining *how* to treat the PageView and write the compiled output to a the
170
     * respective target file.
171
     *
172
     * @param DynamicPageView|RepeaterPageView|PageView $pageView The PageView that needs to be compiled
173
     *
174
     * @since 0.1.1
175
     */
176 14
    public function compilePageView(&$pageView)
177
    {
178 14
        $this->twig->addGlobal('__currentTemplate', $pageView->getFilePath());
179 14
        $this->output->debug('Compiling {type} PageView: {pageview}', array(
180 14
            'pageview' => $pageView->getRelativeFilePath(),
181 14
            'type' => $pageView->getType()
182
        ));
183
184
        try
185
        {
186 14
            switch ($pageView->getType())
187
            {
188 14
                case PageView::STATIC_TYPE:
189 10
                    $this->compileStaticPageView($pageView);
190 10
                    $this->compileStandardRedirects($pageView);
191 10
                    break;
192
193 4
                case PageView::DYNAMIC_TYPE:
194 2
                    $this->compileDynamicPageViews($pageView);
1 ignored issue
show
Compatibility introduced by
$pageView of type object<allejo\stakx\Document\PageView> is not a sub-type of object<allejo\stakx\Document\DynamicPageView>. It seems like you assume a child class of the class allejo\stakx\Document\PageView to be always present.

This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.

Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.

Loading history...
195 2
                    $this->compileStandardRedirects($pageView);
196 2
                    break;
197
198 2
                case PageView::REPEATER_TYPE:
199 2
                    $this->compileRepeaterPageViews($pageView);
1 ignored issue
show
Compatibility introduced by
$pageView of type object<allejo\stakx\Document\PageView> is not a sub-type of object<allejo\stakx\Document\RepeaterPageView>. It seems like you assume a child class of the class allejo\stakx\Document\PageView to be always present.

This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.

Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.

Loading history...
200 2
                    $this->compileExpandedRedirects($pageView);
201 14
                    break;
202
            }
203
        }
204
        catch (Twig_Error_Runtime $e)
205
        {
206
            throw new FileAwareException(
207
                $e->getRawMessage(),
208
                $e->getCode(),
209
                $e,
210
                $pageView->getRelativeFilePath(),
211
                $e->getTemplateLine() + $pageView->getLineOffset()
212
            );
213
        }
214 14
    }
215
216
    /**
217
     * Write the compiled output for a static PageView.
218
     *
219
     * @param PageView $pageView
220
     *
221
     * @since 0.1.1
222
     */
223 10
    private function compileStaticPageView(&$pageView)
224
    {
225 10
        $targetFile = $pageView->getTargetFile();
226 10
        $output = $this->renderStaticPageView($pageView);
227
228 10
        $this->output->notice('Writing file: {file}', array('file' => $targetFile));
229 10
        $this->folder->writeFile($targetFile, $output);
230 10
    }
231
232
    /**
233
     * Write the compiled output for a dynamic PageView.
234
     *
235
     * @param DynamicPageView $pageView
236
     *
237
     * @since 0.1.1
238
     */
239 2
    private function compileDynamicPageViews(&$pageView)
240
    {
241 2
        $contentItems = $pageView->getRepeatableItems();
242 2
        $template = $this->createTwigTemplate($pageView);
243
244 2
        foreach ($contentItems as &$contentItem)
245
        {
246 2
            if ($contentItem->isDraft() && !Service::getParameter(BuildableCommand::USE_DRAFTS))
247
            {
248 1
                $this->output->debug('{file}: marked as a draft', array(
249 1
                    'file' => $contentItem->getRelativeFilePath()
250
                ));
251
252 1
                continue;
253
            }
254
255 2
            $targetFile = $contentItem->getTargetFile();
256 2
            $output = $this->renderDynamicPageView($template, $contentItem);
257
258 2
            $this->output->notice('Writing file: {file}', array('file' => $targetFile));
259 2
            $this->folder->writeFile($targetFile, $output);
260
        }
261 2
    }
262
263
    /**
264
     * Write the compiled output for a repeater PageView.
265
     *
266
     * @param RepeaterPageView $pageView
267
     *
268
     * @since 0.1.1
269
     */
270 2
    private function compileRepeaterPageViews(&$pageView)
271
    {
272 2
        $pageView->rewindPermalink();
273
274 2
        $template = $this->createTwigTemplate($pageView);
275 2
        $permalinks = $pageView->getRepeaterPermalinks();
0 ignored issues
show
Bug introduced by
It seems like you code against a specific sub-type and not the parent class allejo\stakx\Document\PageView as the method getRepeaterPermalinks() does only exist in the following sub-classes of allejo\stakx\Document\PageView: allejo\stakx\Document\RepeaterPageView. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
Loading history...
276
277 2
        foreach ($permalinks as $permalink)
278
        {
279 2
            $pageView->bumpPermalink();
0 ignored issues
show
Bug introduced by
It seems like you code against a specific sub-type and not the parent class allejo\stakx\Document\PageView as the method bumpPermalink() does only exist in the following sub-classes of allejo\stakx\Document\PageView: allejo\stakx\Document\RepeaterPageView. Maybe you want to instanceof check for one of these explicitly?

Let’s take a look at an example:

abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the parent class:

    abstract class User
    {
        /** @return string */
        abstract public function getPassword();
    
        /** @return string */
        abstract public function getDisplayName();
    }
    
Loading history...
280 2
            $targetFile = $pageView->getTargetFile();
281 2
            $output = $this->renderRepeaterPageView($template, $pageView, $permalink);
282
283 2
            $this->output->notice('Writing repeater file: {file}', array('file' => $targetFile));
284 2
            $this->folder->writeFile($targetFile, $output);
285
        }
286 2
    }
287
288
    /**
289
     * @deprecated
290
     *
291
     * @todo This function needs to be rewritten or removed. Something
292
     *
293
     * @param ContentItem $contentItem
294
     */
295
    public function compileContentItem(&$contentItem)
296
    {
297
        $pageView = &$contentItem->getPageView();
298
        $template = $this->createTwigTemplate($pageView);
299
300
        $this->twig->addGlobal('__currentTemplate', $pageView->getFilePath());
301
        $contentItem->evaluateFrontMatter($pageView->getFrontMatter(false));
302
303
        $targetFile = $contentItem->getTargetFile();
304
        $output = $this->renderDynamicPageView($template, $contentItem);
305
306
        $this->output->notice('Writing file: {file}', array('file' => $targetFile));
307
        $this->folder->writeFile($targetFile, $output);
308
    }
309
310
    ///
311
    // Redirect handling
312
    ///
313
314
    /**
315
     * Write redirects for standard redirects.
316
     *
317
     * @param PageView $pageView
318
     *
319
     * @since 0.1.1
320
     */
321 12
    private function compileStandardRedirects(&$pageView)
322
    {
323 12
        $redirects = $pageView->getRedirects();
324
325 12
        foreach ($redirects as $redirect)
0 ignored issues
show
Bug introduced by
The expression $redirects of type null|array is not guaranteed to be traversable. How about adding an additional type check?

There are different options of fixing this problem.

  1. If you want to be on the safe side, you can add an additional type-check:

    $collection = json_decode($data, true);
    if ( ! is_array($collection)) {
        throw new \RuntimeException('$collection must be an array.');
    }
    
    foreach ($collection as $item) { /** ... */ }
    
  2. If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:

    /** @var array $collection */
    $collection = json_decode($data, true);
    
    foreach ($collection as $item) { /** .. */ }
    
  3. Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.

Loading history...
326
        {
327 4
            $redirectPageView = PageView::createRedirect(
328
                $redirect,
329 4
                $pageView->getPermalink(),
330 4
                $this->redirectTemplate
331
            );
332
333 4
            $this->compileStaticPageView($redirectPageView);
334
        }
335 12
    }
336
337
    /**
338
     * Write redirects for expanded redirects.
339
     *
340
     * @param RepeaterPageView $pageView
341
     *
342
     * @since 0.1.1
343
     */
344 2
    private function compileExpandedRedirects(&$pageView)
345
    {
346 2
        $permalinks = $pageView->getRepeaterPermalinks();
347
348
        /** @var ExpandedValue[] $repeaterRedirect */
349 2
        foreach ($pageView->getRepeaterRedirects() as $repeaterRedirect)
350
        {
351
            /**
352
             * @var int           $index
353
             * @var ExpandedValue $redirect
354
             */
355
            foreach ($repeaterRedirect as $index => $redirect)
356
            {
357
                $redirectPageView = PageView::createRedirect(
358
                    $redirect->getEvaluated(),
359
                    $permalinks[$index]->getEvaluated(),
360
                    $this->redirectTemplate
361
                );
362
                $this->compilePageView($redirectPageView);
363
            }
364
        }
365 2
    }
366
367
    ///
368
    // Twig Functionality
369
    ///
370
371
    /**
372
     * Get the compiled HTML for a specific iteration of a repeater PageView.
373
     *
374
     * @param Twig_Template $template
375
     * @param PageView      $pageView
376
     * @param ExpandedValue $expandedValue
377
     *
378
     * @since  0.1.1
379
     *
380
     * @return string
381
     */
382 2
    private function renderRepeaterPageView(&$template, &$pageView, &$expandedValue)
383
    {
384 2
        $pageView->setFrontMatter(array(
385 2
            'permalink' => $expandedValue->getEvaluated(),
386 2
            'iterators' => $expandedValue->getIterators(),
387
        ));
388
389
        return $template
390 2
            ->render(array(
391 2
                'this' => $pageView->createJail(),
392
            ));
393
    }
394
395
    /**
396
     * Get the compiled HTML for a specific ContentItem.
397
     *
398
     * @param Twig_Template $template
399
     * @param ContentItem   $contentItem
400
     *
401
     * @since  0.1.1
402
     *
403
     * @return string
404
     */
405 2
    private function renderDynamicPageView(&$template, &$contentItem)
406
    {
407
        return $template
408 2
            ->render(array(
409 2
                'this' => $contentItem->createJail(),
410
            ));
411
    }
412
413
    /**
414
     * Get the compiled HTML for a static PageView.
415
     *
416
     * @param PageView $pageView
417
     *
418
     * @since  0.1.1
419
     *
420
     * @throws \Exception
421
     * @throws \Throwable
422
     * @throws Twig_Error_Syntax
423
     *
424
     * @return string
425
     */
426 10
    private function renderStaticPageView(&$pageView)
427
    {
428
        return $this
429 10
            ->createTwigTemplate($pageView)
430 10
            ->render(array(
431 10
                'this' => $pageView->createJail(),
432
            ));
433
    }
434
435
    /**
436
     * Create a Twig template that just needs an array to render.
437
     *
438
     * @param PageView $pageView The PageView whose body will be used for Twig compilation
439
     *
440
     * @since  0.1.1
441
     *
442
     * @throws \Exception
443
     * @throws \Throwable
444
     * @throws Twig_Error_Syntax
445
     *
446
     * @return Twig_Template
447
     */
448 14
    private function createTwigTemplate(&$pageView)
449
    {
450
        try
451
        {
452 14
            $template = $this->twig->createTemplate($pageView->getContent());
453
454 14
            $this->templateMapping[$template->getTemplateName()] = $pageView->getRelativeFilePath();
455
456 14
            if (Service::getParameter(BuildableCommand::WATCHING))
457
            {
458
                $parent = $template->getParent(array());
459
460
                while (false !== $parent)
461
                {
462
                    $path = str_replace('@theme', $this->fs->appendPath(ThemeManager::THEME_FOLDER, $this->theme), $parent->getTemplateName());
463
                    $this->templateDependencies[$path][$pageView->getName()] = &$pageView;
464
465
                    $parent = $parent->getParent(array());
466
                }
467
            }
468
469 14
            return $template;
470
        }
471
        catch (Twig_Error_Syntax $e)
472
        {
473
            $e->setTemplateLine($e->getTemplateLine() + $pageView->getLineOffset());
474
            $e->setSourceContext(new Twig_Source(
475
                $pageView->getContent(),
476
                $pageView->getName(),
477
                $pageView->getRelativeFilePath()
478
            ));
479
480
            throw $e;
481
        }
482
    }
483
}
484