GitWrapper\GitBranches

Complexity

Total Complexity

9

Size/Duplication

Total Lines	67
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

8 Methods

Rating	Name	Duplication	Size	Complexity
A	fetchBranches()	0	7	2
A	trimBranch()	0	4	1
A	getIterator()	0	5	1
A	all()	0	4	1
A	remote()	0	4	1
A	head()	0	4	1
A	__construct()	0	5	1
A	splitByNewline()	0	4	1

<?php

declare(strict_types=1);

namespace GitWrapper;

use ArrayIterator;
use IteratorAggregate;

/**
 * Class that parses and returnes an array of branches.
 */
final class GitBranches implements IteratorAggregate
{
    /**
     * @var GitWorkingCopy
     */
    private $gitWorkingCopy;

    public function __construct(GitWorkingCopy $gitWorkingCopy)
    {
        $this->gitWorkingCopy = clone $gitWorkingCopy;
        $gitWorkingCopy->branch(['a' => true]);
    }

    /**
     * Fetches the branches via the `git branch` command.
     *
     * @param bool $onlyRemote Whether to fetch only remote branches, defaults to false which returns all branches.
     * @return string[]
     */
    public function fetchBranches(bool $onlyRemote = false): array
    {
        $options = $onlyRemote ? ['r' => true] : ['a' => true];
        $output = $this->gitWorkingCopy->branch($options);
        $branches = $this->splitByNewline(rtrim($output));
        return array_map([$this, 'trimBranch'], $branches);
    }

    public function trimBranch(string $branch): string
    {
        return ltrim($branch, ' *');
    }

    public function getIterator(): ArrayIterator
    {
        $branches = $this->all();
        return new ArrayIterator($branches);
    }

    /**
     * @return string[]
     */
    public function all(): array
    {
        return $this->fetchBranches();
    }

    /**
     * @return string[]
     */
    public function remote(): array
    {
        return $this->fetchBranches(true);
    }

    /**
     * Returns currently active branch (HEAD) of the working copy.
     */
    public function head(): string
    {
        return trim($this->gitWorkingCopy->run('rev-parse', ['--abbrev-ref', 'HEAD']));
    }

    private function splitByNewline(string $string): array
    {
        return (array)preg_split('#\R#', $string, PREG_SPLIT_NO_EMPTY);
    }
}