DiffChunk::rewind() - Code Metrics - Inspection of "Merge pull request #156 from matteosister/develop" - matteosister/GitElephant - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 7cb780...532294 )

unknown

created 2019-03-25 11:52 UTC

DiffChunk::rewind() A

↳ Parent: DiffChunk

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	3
cts	3
cp	1
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	0
crap	1

<?php
/**
 * GitElephant - An abstraction layer for git written in PHP
 * Copyright (C) 2013  Matteo Giachino
 *
 * This program 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 program 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 program.  If not, see [http://www.gnu.org/licenses/].
 */

namespace GitElephant\Objects\Diff;

/**
 * A single portion of a file changed in a diff
 *
 * @author Matteo Giachino <[email protected]>
 */
class DiffChunk implements \ArrayAccess, \Countable, \Iterator
{
    /**
     * the cursor position
     *
     * @var int
     */
    private $position;

    /**
     * diff start line from original file
     *
     * @var int
     */
    private $originStartLine;

    /**
     * diff end line from original file
     *
     * @var int
     */
    private $originEndLine;

    /**
     * diff start line from destination file
     *
     * @var int
     */
    private $destStartLine;

    /**
     * diff end line from destination file
     *
     * @var int
     */
    private $destEndLine;

    /**
     * hunk header line
     *
     * @var string
     */
    private $headerLine;

    /**
     * array of lines
     *
     * @var array
     */
    private $lines;

    /**
     * Class constructor
     *
     * @param array $lines output lines from git binary
     *
     * @throws \Exception
     */
    public function __construct(array $lines)
    {
        $this->position = 0;

        $this->getLinesNumbers($lines[0]);
        $this->parseLines(array_slice($lines, 1));
    }

    /**
     * Parse lines
     *
     * @param array $lines output lines
     *
     * @throws \Exception
     */
    private function parseLines(array $lines)
    {
        $originUnchanged = $this->originStartLine;
        $destUnchanged = $this->destStartLine;

        $deleted = $this->originStartLine;
        $new = $this->destStartLine;
        foreach ($lines as $line) {
            if (preg_match('/^\+(.*)/', $line)) {
                $this->lines[] = new DiffChunkLineAdded($new++, preg_replace('/\+(.*)/', ' $1', $line));
                $destUnchanged++;
            } else if (preg_match('/^-(.*)/', $line)) {
                $this->lines[] = new DiffChunkLineDeleted($deleted++, preg_replace('/-(.*)/', ' $1', $line));
                $originUnchanged++;
            } else if (preg_match('/^ (.*)/', $line) || $line == '') {
                $this->lines[] = new DiffChunkLineUnchanged($originUnchanged++, $destUnchanged++, $line);
                $deleted++;
                $new++;
            } else if (!preg_match('/\\ No newline at end of file/', $line)) {
                throw new \Exception(sprintf('GitElephant was unable to parse the line %s', $line));
            }
        }
    }

    /**
     * Get line numbers
     *
     * @param string $line a single line
     */
    private function getLinesNumbers(string $line)
    {
        $matches = [];
        preg_match('/@@ -(.*) \+(.*) @@?(.*)/', $line, $matches);
        if (!strpos($matches[1], ',')) {
            // one line
            $this->originStartLine = $matches[1];
$answer = 42;

$correct = false;

$correct = (bool) $answer;
            $this->originEndLine = $matches[1];
$answer = 42;

$correct = false;

$correct = (bool) $answer;
        } else {
            list($this->originStartLine, $this->originEndLine) = explode(',', $matches[1]);
        }

        if (!strpos($matches[2], ',')) {
            // one line
            $this->destStartLine = $matches[2];
$answer = 42;

$correct = false;

$correct = (bool) $answer;
            $this->destEndLine = $matches[2];
$answer = 42;

$correct = false;

$correct = (bool) $answer;
        } else {
            list($this->destStartLine, $this->destEndLine) = explode(',', $matches[2]);
        }
    }

    /**
     * destStartLine getter
     *
     * @return int
     */
    public function getDestStartLine()
    {
        return $this->destStartLine;
    }

    /**
     * destEndLine getter
     *
     * @return int
     */
    public function getDestEndLine()
    {
        return $this->destEndLine;
    }

    /**
     * originStartLine getter
     *
     * @return int
     */
    public function getOriginStartLine()
    {
        return $this->originStartLine;
    }

    /**
     * originEndLine getter
     *
     * @return int
     */
    public function getOriginEndLine()
    {
        return $this->originEndLine;
    }

    /**
     * Get hunk header line
     *
     * @return string
     */
    public function getHeaderLine()
    {
        if (null === $this->headerLine) {
            $line = '@@';
            $line .= ' -' . $this->getOriginStartLine() . ',' . $this->getOriginEndLine();
            $line .= ' +' . $this->getDestStartLine() . ',' . $this->getDestEndLine();
            $line .= ' @@';

            $this->headerLine = $line;
        }

        return $this->headerLine;
    }

    /**
     * Get Lines
     *
     * @return array
     */
    public function getLines()
    {
        return $this->lines;
    }

    /**
     * ArrayAccess interface
     *
     * @param int $offset offset
     *
     * @return bool
     */
    public function offsetExists($offset)
    {
        return isset($this->lines[$offset]);
    }

    /**
     * ArrayAccess interface
     *
     * @param int $offset offset
     *
     * @return null
     */
    public function offsetGet($offset)
    {
        return isset($this->lines[$offset]) ? $this->lines[$offset] : null;
    }

    /**
     * ArrayAccess interface
     *
     * @param int   $offset offset
     * @param mixed $value  value
     */
    public function offsetSet($offset, $value)
    {
        if (is_null($offset)) {
            $this->lines[] = $value;
        } else {
            $this->lines[$offset] = $value;
        }
    }

    /**
     * ArrayAccess interface
     *
     * @param int $offset offset
     */
    public function offsetUnset($offset)
    {
        unset($this->lines[$offset]);
    }

    /**
     * Countable interface
     *
     * @return int|void
     */
    public function count()
    {
        return count($this->lines);
    }

    /**
     * Iterator interface
     *
     * @return mixed
     */
    public function current()
    {
        return $this->lines[$this->position];
    }

    /**
     * Iterator interface
     */
    public function next()
    {
        ++$this->position;
    }

    /**
     * Iterator interface
     *
     * @return int
     */
    public function key()
    {
        return $this->position;
    }

    /**
     * Iterator interface
     *
     * @return bool
     */
    public function valid()
    {
        return isset($this->lines[$this->position]);
    }

    /**
     * Iterator interface
     */
    public function rewind()
    {
        $this->position = 0;
    }
}


1		<?php
2		/**
3		* GitElephant - An abstraction layer for git written in PHP
4		* Copyright (C) 2013 Matteo Giachino
5		*
6		* This program is free software: you can redistribute it and/or modify
7		* it under the terms of the GNU General Public License as published by
8		* the Free Software Foundation, either version 3 of the License, or
9		* (at your option) any later version.
10		*
11		* This program is distributed in the hope that it will be useful,
12		* but WITHOUT ANY WARRANTY; without even the implied warranty of
13		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14		* GNU General Public License for more details.
15		*
16		* You should have received a copy of the GNU General Public License
17		* along with this program. If not, see [http://www.gnu.org/licenses/].
18		*/
19
20		namespace GitElephant\Objects\Diff;
21
22		/**
23		* A single portion of a file changed in a diff
24		*
25		* @author Matteo Giachino <[email protected]>
26		*/
27		class DiffChunk implements \ArrayAccess, \Countable, \Iterator
28		{
29		/**
30		* the cursor position
31		*
32		* @var int
33		*/
34		private $position;
35
36		/**
37		* diff start line from original file
38		*
39		* @var int
40		*/
41		private $originStartLine;
42
43		/**
44		* diff end line from original file
45		*
46		* @var int
47		*/
48		private $originEndLine;
49
50		/**
51		* diff start line from destination file
52		*
53		* @var int
54		*/
55		private $destStartLine;
56
57		/**
58		* diff end line from destination file
59		*
60		* @var int
61		*/
62		private $destEndLine;
63
64		/**
65		* hunk header line
66		*
67		* @var string
68		*/
69		private $headerLine;
70
71		/**
72		* array of lines
73		*
74		* @var array
75		*/
76		private $lines;
77
78		/**
79		* Class constructor
80		*
81		* @param array $lines output lines from git binary
82		*
83		* @throws \Exception
84		*/
85	2	public function __construct(array $lines)
86		{
87	2	$this->position = 0;
88
89	2	$this->getLinesNumbers($lines[0]);
90	2	$this->parseLines(array_slice($lines, 1));
91	2	}
92
93		/**
94		* Parse lines
95		*
96		* @param array $lines output lines
97		*
98		* @throws \Exception
99		*/
100	2	private function parseLines(array $lines)
101		{
102	2	$originUnchanged = $this->originStartLine;
103	2	$destUnchanged = $this->destStartLine;
104
105	2	$deleted = $this->originStartLine;
106	2	$new = $this->destStartLine;
107	2	foreach ($lines as $line) {
108	2	if (preg_match('/^\+(.*)/', $line)) {
109	2	$this->lines[] = new DiffChunkLineAdded($new++, preg_replace('/\+(.*)/', ' $1', $line));
110	2	$destUnchanged++;
111	2	} else if (preg_match('/^-(.*)/', $line)) {
112	1	$this->lines[] = new DiffChunkLineDeleted($deleted++, preg_replace('/-(.*)/', ' $1', $line));
113	1	$originUnchanged++;
114	2	} else if (preg_match('/^ (.*)/', $line) \|\| $line == '') {
115	2	$this->lines[] = new DiffChunkLineUnchanged($originUnchanged++, $destUnchanged++, $line);
116	2	$deleted++;
117	2	$new++;
118	2	} else if (!preg_match('/\\ No newline at end of file/', $line)) {
119		throw new \Exception(sprintf('GitElephant was unable to parse the line %s', $line));
120		}
121		}
122	2	}
123
124		/**
125		* Get line numbers
126		*
127		* @param string $line a single line
128		*/
129	2	private function getLinesNumbers(string $line)
130		{
131	2	$matches = [];
132	2	preg_match('/@@ -(.) \+(.) @@?(.*)/', $line, $matches);
133	2	if (!strpos($matches[1], ',')) {
134		// one line
135		$this->originStartLine = $matches[1];
		0 ignored issues – show Documentation Bug introduced 2015-12-20 10:24 UTC by Report Bug Copy Issue Report The property `$originStartLine` was declared of type `integer`, but `$matches[1]` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
136		$this->originEndLine = $matches[1];
		0 ignored issues – show Documentation Bug introduced 2015-12-20 10:24 UTC by Report Bug Copy Issue Report The property `$originEndLine` was declared of type `integer`, but `$matches[1]` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
137		} else {
138	2	list($this->originStartLine, $this->originEndLine) = explode(',', $matches[1]);
139		}
140
141	2	if (!strpos($matches[2], ',')) {
142		// one line
143	1	$this->destStartLine = $matches[2];
		0 ignored issues – show Documentation Bug introduced 2015-12-20 10:24 UTC by Report Bug Copy Issue Report The property `$destStartLine` was declared of type `integer`, but `$matches[2]` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
144	1	$this->destEndLine = $matches[2];
		0 ignored issues – show Documentation Bug introduced 2015-12-20 10:24 UTC by Report Bug Copy Issue Report The property `$destEndLine` was declared of type `integer`, but `$matches[2]` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
145		} else {
146	1	list($this->destStartLine, $this->destEndLine) = explode(',', $matches[2]);
147		}
148	2	}
149
150		/**
151		* destStartLine getter
152		*
153		* @return int
154		*/
155		public function getDestStartLine()
156		{
157		return $this->destStartLine;
158		}
159
160		/**
161		* destEndLine getter
162		*
163		* @return int
164		*/
165		public function getDestEndLine()
166		{
167		return $this->destEndLine;
168		}
169
170		/**
171		* originStartLine getter
172		*
173		* @return int
174		*/
175		public function getOriginStartLine()
176		{
177		return $this->originStartLine;
178		}
179
180		/**
181		* originEndLine getter
182		*
183		* @return int
184		*/
185		public function getOriginEndLine()
186		{
187		return $this->originEndLine;
188		}
189
190		/**
191		* Get hunk header line
192		*
193		* @return string
194		*/
195		public function getHeaderLine()
196		{
197		if (null === $this->headerLine) {
198		$line = '@@';
199		$line .= ' -' . $this->getOriginStartLine() . ',' . $this->getOriginEndLine();
200		$line .= ' +' . $this->getDestStartLine() . ',' . $this->getDestEndLine();
201		$line .= ' @@';
202
203		$this->headerLine = $line;
204		}
205
206		return $this->headerLine;
207		}
208
209		/**
210		* Get Lines
211		*
212		* @return array
213		*/
214		public function getLines()
215		{
216		return $this->lines;
217		}
218
219		/**
220		* ArrayAccess interface
221		*
222		* @param int $offset offset
223		*
224		* @return bool
225		*/
226		public function offsetExists($offset)
227		{
228		return isset($this->lines[$offset]);
229		}
230
231		/**
232		* ArrayAccess interface
233		*
234		* @param int $offset offset
235		*
236		* @return null
237		*/
238		public function offsetGet($offset)
239		{
240		return isset($this->lines[$offset]) ? $this->lines[$offset] : null;
241		}
242
243		/**
244		* ArrayAccess interface
245		*
246		* @param int $offset offset
247		* @param mixed $value value
248		*/
249		public function offsetSet($offset, $value)
250		{
251		if (is_null($offset)) {
252		$this->lines[] = $value;
253		} else {
254		$this->lines[$offset] = $value;
255		}
256		}
257
258		/**
259		* ArrayAccess interface
260		*
261		* @param int $offset offset
262		*/
263		public function offsetUnset($offset)
264		{
265		unset($this->lines[$offset]);
266		}
267
268		/**
269		* Countable interface
270		*
271		* @return int\|void
272		*/
273	1	public function count()
274		{
275	1	return count($this->lines);
276		}
277
278		/**
279		* Iterator interface
280		*
281		* @return mixed
282		*/
283	1	public function current()
284		{
285	1	return $this->lines[$this->position];
286		}
287
288		/**
289		* Iterator interface
290		*/
291	1	public function next()
292		{
293	1	++$this->position;
294	1	}
295
296		/**
297		* Iterator interface
298		*
299		* @return int
300		*/
301		public function key()
302		{
303		return $this->position;
304		}
305
306		/**
307		* Iterator interface
308		*
309		* @return bool
310		*/
311	1	public function valid()
312		{
313	1	return isset($this->lines[$this->position]);
314		}
315
316		/**
317		* Iterator interface
318		*/
319	1	public function rewind()
320		{
321	1	$this->position = 0;
322	1	}
323		}
324

matteosister / GitElephant

Push — master ( 7cb780...532294 )

DiffChunk::rewind() A

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