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<?php |
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namespace Storeman\Index; |
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use Storeman\FilesystemUtility; |
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use Storeman\Hash\HashContainer; |
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/** |
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* An index object is the representation of one of this filesystem primitives contained in the index. |
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*/ |
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class IndexObject implements \ArrayAccess |
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{ |
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public const TYPE_DIR = 1; |
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public const TYPE_FILE = 2; |
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public const TYPE_LINK = 3; |
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public const CMP_IGNORE_BLOBID = 1; |
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public const CMP_IGNORE_INODE = 2; |
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public const CMP_IGNORE_CTIME = 4; |
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/** |
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* @var string |
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*/ |
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protected $relativePath; |
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/** |
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* @var int |
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*/ |
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protected $type; |
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/** |
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* @var float |
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*/ |
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protected $mtime; |
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/** |
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* @var float |
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*/ |
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protected $ctime; |
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/** |
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* mode & 0777 |
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* |
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* @var int |
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*/ |
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protected $permissions; |
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/** |
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* @var int |
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*/ |
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protected $size; |
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/** |
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* @var int |
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*/ |
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protected $inode; |
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/** |
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* @var string |
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*/ |
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protected $linkTarget; |
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/** |
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* Content hashes for file index objects. |
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* |
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* @var HashContainer |
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*/ |
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protected $hashes; |
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/** |
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* @var string |
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*/ |
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protected $blobId; |
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public function __construct(string $relativePath, int $type, float $mtime, ?float $ctime, int $permissions, ?int $size, ?int $inode, ?string $linkTarget, ?string $blobId, ?HashContainer $hashContainer) |
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{ |
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assert(($type === static::TYPE_FILE) ^ ($size === null)); |
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assert(($type === static::TYPE_FILE) || ($blobId === null)); |
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assert(($type === static::TYPE_FILE) ^ ($hashContainer === null)); |
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assert(($type === static::TYPE_LINK) ^ ($linkTarget === null)); |
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assert(!($permissions & ~0777)); |
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$this->relativePath = $relativePath; |
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$this->type = $type; |
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$this->mtime = $mtime; |
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$this->ctime = $ctime; |
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$this->permissions = $permissions; |
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$this->size = $size; |
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$this->inode = $inode; |
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$this->linkTarget = $linkTarget; |
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$this->blobId = $blobId; |
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$this->hashes = $hashContainer; |
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} |
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public function getRelativePath(): string |
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{ |
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return $this->relativePath; |
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} |
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public function getBasename(): string |
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{ |
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$pos = strrpos($this->relativePath, '/'); |
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return ($pos === false) ? $this->relativePath : substr($this->relativePath, $pos + 1); |
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} |
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public function getType(): int |
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{ |
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return $this->type; |
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} |
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public function getTypeName(): string |
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{ |
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return static::getTypeNameMap()[$this->type]; |
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} |
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public function isDirectory(): bool |
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{ |
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return $this->type === static::TYPE_DIR; |
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} |
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public function isFile(): bool |
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{ |
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return $this->type === static::TYPE_FILE; |
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} |
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public function isLink(): bool |
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{ |
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return $this->type === static::TYPE_LINK; |
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} |
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public function getMtime(): float |
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{ |
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return $this->mtime; |
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} |
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public function getCtime(): ?float |
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{ |
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return $this->ctime; |
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} |
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public function setCtime(float $ctime): IndexObject |
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{ |
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$this->ctime = $ctime; |
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return $this; |
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} |
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public function getPermissions(): int |
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{ |
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return $this->permissions; |
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} |
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public function getPermissionsString(): string |
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{ |
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return decoct($this->permissions); |
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} |
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public function getSize(): ?int |
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{ |
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return $this->size; |
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} |
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public function getInode(): ?int |
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{ |
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return $this->inode; |
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} |
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public function getLinkTarget(): ?string |
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{ |
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return $this->linkTarget; |
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} |
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public function getHashes(): ?HashContainer |
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{ |
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return $this->hashes; |
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} |
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public function getBlobId(): ?string |
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{ |
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return $this->blobId; |
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} |
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public function setBlobId(string $blobId): IndexObject |
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{ |
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assert($this->blobId === null); |
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$this->blobId = $blobId; |
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return $this; |
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} |
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/** |
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* Equality check with all attributes. |
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* |
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* @param IndexObject $other |
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* @param int $options |
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* @return bool |
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*/ |
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public function equals(?IndexObject $other, int $options = 0): bool |
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{ |
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if ($other === null) |
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{ |
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return false; |
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} |
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$equals = true; |
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$equals &= $this->relativePath === $other->relativePath; |
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$equals &= $this->type === $other->type; |
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$equals &= $this->mtime === $other->mtime; |
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$equals &= ($options & static::CMP_IGNORE_CTIME) || ($this->ctime === $other->ctime); |
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$equals &= $this->permissions === $other->permissions; |
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$equals &= $this->size === $other->size; |
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$equals &= ($options & static::CMP_IGNORE_INODE) || ($this->inode === $other->inode); |
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$equals &= $this->linkTarget === $other->linkTarget; |
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$equals &= ($options & static::CMP_IGNORE_BLOBID) || ($this->blobId === $other->blobId); |
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if ($this->hashes && $other->hashes) |
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{ |
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$equals &= $this->hashes->equals($other->hashes); |
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} |
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return $equals; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetExists($offset) |
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{ |
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return method_exists($this, 'get' . ucfirst($offset)); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetGet($offset) |
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{ |
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assert(method_exists($this, 'get' . ucfirst($offset))); |
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return call_user_func([$this, 'get' . ucfirst($offset)]); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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throw new \LogicException(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetUnset($offset) |
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{ |
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throw new \LogicException(); |
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} |
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public function __clone() |
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{ |
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if ($this->hashes !== null) |
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{ |
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$this->hashes = clone $this->hashes; |
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} |
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} |
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public function __toString(): string |
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{ |
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$parts = [ |
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$this->getTypeName(), |
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"mtime: " . ($this->mtime === null ? '-' : FilesystemUtility::buildTime($this->mtime)), |
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"ctime: " . ($this->ctime === null ? '-' : FilesystemUtility::buildTime($this->ctime)), |
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"permissions: 0{$this->getPermissionsString()}", |
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"inode: " . $this->inode ?: '-', |
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]; |
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if ($this->isFile()) |
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{ |
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$blobId = $this->blobId ?: '-'; |
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$parts = array_merge($parts, [ |
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"size: {$this->size} B", |
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"blobId: {$blobId}", |
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]); |
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} |
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elseif ($this->isLink()) |
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{ |
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$parts = array_merge($parts, [ |
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"target: {$this->linkTarget}", |
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]); |
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} |
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$attributesString = implode(', ', $parts); |
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return "{$this->relativePath} ({$attributesString})"; |
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} |
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public static function getTypeNameMap(): array |
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{ |
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return [ |
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static::TYPE_DIR => 'DIR', |
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static::TYPE_FILE => 'FILE', |
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static::TYPE_LINK => 'LINK', |
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]; |
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} |
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} |
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