MapUpdater::loadMapFromFreedesktopFile() - Code Metrics - Inspection of "Bump minimum PHP to 7.3, PHPStan level 7 (#58)" - FileEye/MimeMap - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 04dc1c...221271 )

by mon

created 2022-05-03 09:54 UTC

MapUpdater::loadMapFromFreedesktopFile() F

↳ Parent: MapUpdater

Complexity

Conditions	16
Paths	306

Size

Total Lines	71
Code Lines	39

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	35
CRAP Score	16.2764

Importance

Changes

Metric	Value
cc	16
eloc	39
c	0
b	0
f	0
nc	306
nop	1
dl	0
loc	71
rs	3.4083
ccs	35
cts	39
cp	0.8974
crap	16.2764

How to fix Long Method Complexity

<?php

namespace FileEye\MimeMap;

use FileEye\MimeMap\Map\EmptyMap;
use FileEye\MimeMap\Map\MimeMapInterface;

/**
 * Compiles the MIME type to file extension map.
 */
class MapUpdater
{
    /**
     * The default, empty, base map to use for update.
     */
    const DEFAULT_BASE_MAP_CLASS = EmptyMap::class;

    /**
     * The map object to update.
     *
     * @var MimeMapInterface
     */
    protected $map;

    /**
     * Returns the default file with override commands to be executed.
     *
     * The YAML file provides an array of calls to MapHandler methods to be
     * executed sequentially. Each entry indicates the method to be invoked and
     * the arguments to be passed in.
     *
     * @return string
     */
    public static function getDefaultMapBuildFile(): string
    {
        return __DIR__ . '/../resources/default_map_build.yml';
    }

    /**
     * Returns the map object being updated.
     *
     * @return MimeMapInterface
     */
    public function getMap(): MimeMapInterface
    {
        return $this->map;
    }

    /**
     * Sets the map object to update.
     *
     * @param string $map_class
     *   The FQCN of the map to be updated.
     *
     * @return $this
     */
    public function selectBaseMap(string $map_class): MapUpdater
    {
        $this->map = MapHandler::map($map_class);
        $this->map->backup();
        return $this;
    }

    /**
     * Loads a new type-to-extension map reading from a file in Apache format.
     *
     * @param string $source_file
     *   The source file. The file must conform to the format in the Apache
     *   source code repository file where MIME types and file extensions are
     *   associated.
     *
     * @return string[]
     *   An array of error messages.
     *
     * @throws \RuntimeException
     *   If it was not possible to access the file.
     */
    public function loadMapFromApacheFile(string $source_file): array
    {
        $errors = [];

        $lines = @file($source_file);
        if ($lines === false) {
            throw new \RuntimeException("Failed accessing {$source_file}");
        }
        foreach ($lines as $line) {
            if ($line[0] == '#') {
                continue;
            }
            $line = preg_replace("#\\s+#", ' ', trim($line));
            $parts = explode(' ', $line);
            $type = array_shift($parts);
            foreach ($parts as $extension) {
                $this->map->addTypeExtensionMapping($type, $extension);
            }
        }
        $this->map->sort();

        return $errors;
    }

    /**
     * Loads a new type-to-extension map reading from a Freedesktop.org file.
     *
     * @param string $source_file
     *   The source file. The file must conform to the format in the
     *   Freedesktop.org database.
     *
     * @return string[]
     *   An array of error messages.
     */
    public function loadMapFromFreedesktopFile(string $source_file): array
    {
        $errors = [];

        $contents = file_get_contents($source_file);
        if ($contents === false) {
            $errors[] = 'Failed loading file ' . $source_file;
            return $errors;
        }

        $xml = simplexml_load_string($contents);
        if ($xml === false) {
            $errors[] = 'Malformed XML in file ' . $source_file;
            return $errors;
        }

        $aliases = [];

        foreach ($xml as $node) {
            $exts = [];
            foreach ($node->glob as $glob) {
                $pattern = (string) $glob['pattern'];
                if ('*' != $pattern[0] || '.' != $pattern[1]) {
                    continue;
                }
                $exts[] = substr($pattern, 2);
            }
            if (empty($exts)) {
                continue;
            }

            $type = (string) $node['type'];

            // Add description.
            if (isset($node->comment)) {
                $this->map->addTypeDescription($type, (string) $node->comment[0]);
            }
            if (isset($node->acronym)) {
                $acronym = (string) $node->acronym;
                if (isset($node->{'expanded-acronym'})) {
                    $acronym .= ': ' . (string) $node->{'expanded-acronym'};
                }
                $this->map->addTypeDescription($type, $acronym);
            }

            // Add extensions.
            foreach ($exts as $ext) {
                $this->map->addTypeExtensionMapping($type, $ext);
            }

            // All aliases are accumulated and processed at the end of the
            // cycle to allow proper consistency checking on the completely
            // developed list of types.
            foreach ($node->alias as $alias) {
                $aliases[$type][] = (string) $alias['type'];
            }
        }

        // Add all the aliases, provide logging of errors.
        foreach ($aliases as $type => $a) {
            foreach ($a as $alias) {
                try {
                    $this->map->addTypeAlias($type, $alias);
                } catch (MappingException $e) {
                    $errors[] = $e->getMessage();
                }
            }
        }
        $this->map->sort();

        return $errors;
    }

    /**
     * Applies to the map an array of overrides.
     *
     * @param array<int,array{0: string, 1: array<string>}> $overrides
     *   The overrides to be applied.
     *
     * @return string[]
     *   An array of error messages.
     */
    public function applyOverrides(array $overrides): array
    {
        $errors = [];

        foreach ($overrides as $command) {
            try {
                $callable = [$this->map, $command[0]];
                assert(is_callable($callable));
                call_user_func_array($callable, $command[1]);
            } catch (MappingException $e) {
                $errors[] = $e->getMessage();
            }
        }
        $this->map->sort();

        return $errors;
    }

    /**
     * Updates the map at a destination PHP file.
     *
     * @return $this
     */
    public function writeMapToPhpClassFile(string $file): MapUpdater
    {
        $content = file_get_contents($file);
        if ($content === false) {
            throw new \RuntimeException('Failed loading file ' . $file);
        }

        $newContent = preg_replace(
            '#protected static \$map = (.+?);#s',
            "protected static \$map = " . preg_replace('/\s+$/m', '', var_export($this->map->getMapArray(), true)) . ";",
            $content
        );
        file_put_contents($file, $newContent);
        
        return $this;
    }
}


1		<?php
2
3		namespace FileEye\MimeMap;
4
5		use FileEye\MimeMap\Map\EmptyMap;
6		use FileEye\MimeMap\Map\MimeMapInterface;
7
8		/**
9		* Compiles the MIME type to file extension map.
10		*/
11		class MapUpdater
12		{
13		/**
14		* The default, empty, base map to use for update.
15		*/
16		const DEFAULT_BASE_MAP_CLASS = EmptyMap::class;
17
18		/**
19		* The map object to update.
20		*
21		* @var MimeMapInterface
22		*/
23		protected $map;
24
25		/**
26		* Returns the default file with override commands to be executed.
27		*
28		* The YAML file provides an array of calls to MapHandler methods to be
29		* executed sequentially. Each entry indicates the method to be invoked and
30		* the arguments to be passed in.
31		*
32		* @return string
33		*/
34	1	public static function getDefaultMapBuildFile(): string
35		{
36	1	return __DIR__ . '/../resources/default_map_build.yml';
37		}
38
39		/**
40		* Returns the map object being updated.
41		*
42		* @return MimeMapInterface
43		*/
44	8	public function getMap(): MimeMapInterface
45		{
46	8	return $this->map;
47		}
48
49		/**
50		* Sets the map object to update.
51		*
52		* @param string $map_class
53		* The FQCN of the map to be updated.
54		*
55		* @return $this
56		*/
57	8	public function selectBaseMap(string $map_class): MapUpdater
58		{
59	8	$this->map = MapHandler::map($map_class);
60	8	$this->map->backup();
61	8	return $this;
62		}
63
64		/**
65		* Loads a new type-to-extension map reading from a file in Apache format.
66		*
67		* @param string $source_file
68		* The source file. The file must conform to the format in the Apache
69		* source code repository file where MIME types and file extensions are
70		* associated.
71		*
72		* @return string[]
73		* An array of error messages.
74		*
75		* @throws \RuntimeException
76		* If it was not possible to access the file.
77		*/
78	3	public function loadMapFromApacheFile(string $source_file): array
79		{
80	3	$errors = [];
81
82	3	$lines = @file($source_file);
83	3	if ($lines === false) {
84		throw new \RuntimeException("Failed accessing {$source_file}");
85		}
86	3	foreach ($lines as $line) {
87	2	if ($line[0] == '#') {
88	2	continue;
89		}
90	2	$line = preg_replace("#\\s+#", ' ', trim($line));
91	2	$parts = explode(' ', $line);
92	2	$type = array_shift($parts);
93	2	foreach ($parts as $extension) {
94	2	$this->map->addTypeExtensionMapping($type, $extension);
95		}
96		}
97	3	$this->map->sort();
98
99	3	return $errors;
100		}
101
102		/**
103		* Loads a new type-to-extension map reading from a Freedesktop.org file.
104		*
105		* @param string $source_file
106		* The source file. The file must conform to the format in the
107		* Freedesktop.org database.
108		*
109		* @return string[]
110		* An array of error messages.
111		*/
112	3	public function loadMapFromFreedesktopFile(string $source_file): array
113		{
114	3	$errors = [];
115
116	3	$contents = file_get_contents($source_file);
117	3	if ($contents === false) {
118		$errors[] = 'Failed loading file ' . $source_file;
119		return $errors;
120		}
121
122	3	$xml = simplexml_load_string($contents);
123	3	if ($xml === false) {
124		$errors[] = 'Malformed XML in file ' . $source_file;
125		return $errors;
126		}
127
128	3	$aliases = [];
129
130	3	foreach ($xml as $node) {
131	2	$exts = [];
132	2	foreach ($node->glob as $glob) {
133	2	$pattern = (string) $glob['pattern'];
134	2	if ('*' != $pattern[0] \|\| '.' != $pattern[1]) {
135	2	continue;
136		}
137	2	$exts[] = substr($pattern, 2);
138		}
139	2	if (empty($exts)) {
140	2	continue;
141		}
142
143	2	$type = (string) $node['type'];
144
145		// Add description.
146	2	if (isset($node->comment)) {
147	2	$this->map->addTypeDescription($type, (string) $node->comment[0]);
148		}
149	2	if (isset($node->acronym)) {
150	2	$acronym = (string) $node->acronym;
151	2	if (isset($node->{'expanded-acronym'})) {
152	2	$acronym .= ': ' . (string) $node->{'expanded-acronym'};
153		}
154	2	$this->map->addTypeDescription($type, $acronym);
155		}
156
157		// Add extensions.
158	2	foreach ($exts as $ext) {
159	2	$this->map->addTypeExtensionMapping($type, $ext);
160		}
161
162		// All aliases are accumulated and processed at the end of the
163		// cycle to allow proper consistency checking on the completely
164		// developed list of types.
165	2	foreach ($node->alias as $alias) {
166	2	$aliases[$type][] = (string) $alias['type'];
167		}
168		}
169
170		// Add all the aliases, provide logging of errors.
171	3	foreach ($aliases as $type => $a) {
172	2	foreach ($a as $alias) {
173		try {
174	2	$this->map->addTypeAlias($type, $alias);
175	1	} catch (MappingException $e) {
176	1	$errors[] = $e->getMessage();
177		}
178		}
179		}
180	3	$this->map->sort();
181
182	3	return $errors;
183		}
184
185		/**
186		* Applies to the map an array of overrides.
187		*
188		* @param array<int,array{0: string, 1: array<string>}> $overrides
189		* The overrides to be applied.
190		*
191		* @return string[]
192		* An array of error messages.
193		*/
194	3	public function applyOverrides(array $overrides): array
195		{
196	3	$errors = [];
197
198	3	foreach ($overrides as $command) {
199		try {
200	3	$callable = [$this->map, $command[0]];
201	3	assert(is_callable($callable));
202	3	call_user_func_array($callable, $command[1]);
203	1	} catch (MappingException $e) {
204	1	$errors[] = $e->getMessage();
205		}
206		}
207	3	$this->map->sort();
208
209	3	return $errors;
210		}
211
212		/**
213		* Updates the map at a destination PHP file.
214		*
215		* @return $this
216		*/
217	1	public function writeMapToPhpClassFile(string $file): MapUpdater
218		{
219	1	$content = file_get_contents($file);
220	1	if ($content === false) {
221		throw new \RuntimeException('Failed loading file ' . $file);
222		}
223
224	1	$newContent = preg_replace(
225		'#protected static \$map = (.+?);#s',
226	1	"protected static \$map = " . preg_replace('/\s+$/m', '', var_export($this->map->getMapArray(), true)) . ";",
227		$content
228		);
229	1	file_put_contents($file, $newContent);
230
231	1	return $this;
232		}
233		}
234

FileEye / MimeMap

Push — master ( 04dc1c...221271 )

MapUpdater::loadMapFromFreedesktopFile() F

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Long Method Complexity

Long Method

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