DiffChunk::next() - Code Metrics - Inspection of "Merge pull request #100 from Vivalldi/patch-1" - matteosister/GitElephant - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — develop ( 5f7df1...9cb564 )

by Matteo

created 2016-05-27 07:37 UTC

DiffChunk::next() A

↳ Parent: DiffChunk

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Metric	Value
dl	0
loc	4
ccs	3
cts	3
cp	1
rs	10
cc	1
eloc	2
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 $lines output lines from git binary
     *
     * @throws \Exception
     */
    public function __construct($lines)
    {
        $this->position = 0;

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

    /**
     * Parse lines
     *
     * @param array $lines output lines
     *
     * @throws \Exception
     */
    private function parseLines($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 $line a single line
     */
    private function getLinesNumbers($line)
    {
        $matches = array();
        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 $lines output lines from git binary
82		*
83		* @throws \Exception
84		*/
85	2	public function __construct($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 $lines output lines
97		*
98		* @throws \Exception
99		*/
100	2	private function parseLines($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 {
112	2	if (preg_match('/^-(.*)/', $line)) {
113	1	$this->lines[] = new DiffChunkLineDeleted($deleted++, preg_replace('/-(.*)/', ' $1', $line));
114	1	$originUnchanged++;
115	1	} else {
116	2	if (preg_match('/^ (.*)/', $line) \|\| $line == '') {
117	2	$this->lines[] = new DiffChunkLineUnchanged($originUnchanged++, $destUnchanged++, $line);
118	2	$deleted++;
119	2	$new++;
120	2	} else {
121	2	if (!preg_match('/\\ No newline at end of file/', $line)) {
122		throw new \Exception(sprintf('GitElephant was unable to parse the line %s', $line));
123		}
124		}
125		}
126		}
127	2	}
128	2	}
129
130		/**
131		* Get line numbers
132		*
133		* @param string $line a single line
134		*/
135	2	private function getLinesNumbers($line)
136		{
137	2	$matches = array();
138	2	preg_match('/@@ -(.) \+(.) @@?(.*)/', $line, $matches);
139	2	if (!strpos($matches[1], ',')) {
140		// one line
141		$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...
142		$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) $answer; Loading history...
143		} else {
144	2	list($this->originStartLine, $this->originEndLine) = explode(',', $matches[1]);
145		}
146	2	if (!strpos($matches[2], ',')) {
147		// one line
148	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...
149	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) $answer; Loading history...
150	1	} else {
151	1	list($this->destStartLine, $this->destEndLine) = explode(',', $matches[2]);
152		}
153	2	}
154
155		/**
156		* destStartLine getter
157		*
158		* @return int
159		*/
160		public function getDestStartLine()
161		{
162		return $this->destStartLine;
163		}
164
165		/**
166		* destEndLine getter
167		*
168		* @return int
169		*/
170		public function getDestEndLine()
171		{
172		return $this->destEndLine;
173		}
174
175		/**
176		* originStartLine getter
177		*
178		* @return int
179		*/
180		public function getOriginStartLine()
181		{
182		return $this->originStartLine;
183		}
184
185		/**
186		* originEndLine getter
187		*
188		* @return int
189		*/
190		public function getOriginEndLine()
191		{
192		return $this->originEndLine;
193		}
194
195		/**
196		* Get hunk header line
197		*
198		* @return string
199		*/
200		public function getHeaderLine()
201		{
202		if (null === $this->headerLine) {
203		$line = '@@';
204		$line .= ' -' . $this->getOriginStartLine() . ',' . $this->getOriginEndLine();
205		$line .= ' +' . $this->getDestStartLine() . ',' . $this->getDestEndLine();
206		$line .= ' @@';
207
208		$this->headerLine = $line;
209		}
210
211		return $this->headerLine;
212		}
213
214		/**
215		* Get Lines
216		*
217		* @return array
218		*/
219		public function getLines()
220		{
221		return $this->lines;
222		}
223
224		/**
225		* ArrayAccess interface
226		*
227		* @param int $offset offset
228		*
229		* @return bool
230		*/
231		public function offsetExists($offset)
232		{
233		return isset($this->lines[$offset]);
234		}
235
236		/**
237		* ArrayAccess interface
238		*
239		* @param int $offset offset
240		*
241		* @return null
242		*/
243		public function offsetGet($offset)
244		{
245		return isset($this->lines[$offset]) ? $this->lines[$offset] : null;
246		}
247
248		/**
249		* ArrayAccess interface
250		*
251		* @param int $offset offset
252		* @param mixed $value value
253		*/
254		public function offsetSet($offset, $value)
255		{
256		if (is_null($offset)) {
257		$this->lines[] = $value;
258		} else {
259		$this->lines[$offset] = $value;
260		}
261		}
262
263		/**
264		* ArrayAccess interface
265		*
266		* @param int $offset offset
267		*/
268		public function offsetUnset($offset)
269		{
270		unset($this->lines[$offset]);
271		}
272
273		/**
274		* Countable interface
275		*
276		* @return int\|void
277		*/
278	1	public function count()
279		{
280	1	return count($this->lines);
281		}
282
283		/**
284		* Iterator interface
285		*
286		* @return mixed
287		*/
288	1	public function current()
289		{
290	1	return $this->lines[$this->position];
291		}
292
293		/**
294		* Iterator interface
295		*/
296	1	public function next()
297		{
298	1	++$this->position;
299	1	}
300
301		/**
302		* Iterator interface
303		*
304		* @return int
305		*/
306		public function key()
307		{
308		return $this->position;
309		}
310
311		/**
312		* Iterator interface
313		*
314		* @return bool
315		*/
316	1	public function valid()
317		{
318	1	return isset($this->lines[$this->position]);
319		}
320
321		/**
322		* Iterator interface
323		*/
324	1	public function rewind()
325		{
326	1	$this->position = 0;
327	1	}
328		}
329

matteosister / GitElephant

Push — develop ( 5f7df1...9cb564 )

DiffChunk::next() A

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