Remove PHP 7 compatibility (#229)

Author: maennchen

.github/workflows/part_test.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ["7.4", "8.0", "8.1"]
+        php: ["8.0", "8.1"]
         os: [ubuntu-latest]
         experimental: [false]
         include:

composer.json

@@ -22,7 +22,7 @@
     }
   ],
   "require": {
-    "php": "^7.4 || ^8.0",
+    "php": "^8.0",
     "symfony/polyfill-mbstring": "^1.0",
     "psr/http-message": "^1.0",
     "myclabs/php-enum": "^1.5"

src/DeflateStream.php

@@ -4,68 +4,24 @@
 
 namespace ZipStream;
 
+/**
+ * @deprecated
+ */
 class DeflateStream extends Stream
 {
-    protected $filter;
-
-    /**
-     * @var Option\File
-     */
-    protected $options;
-
-    /**
-     * Rewind stream
-     *
-     * @return void
-     */
-    public function rewind(): void
+    public function __construct($stream)
     {
-        // deflate filter needs to be removed before rewind
-        if ($this->filter) {
-            $this->removeDeflateFilter();
-            $this->seek(0);
-            $this->addDeflateFilter($this->options);
-        } else {
-            rewind($this->stream);
-        }
+        parent::__construct($stream);
+        trigger_error('Class ' . __CLASS__ . ' is deprecated, delation will be handled internally instead', E_USER_DEPRECATED);
     }
 
-    /**
-     * Remove the deflate filter
-     *
-     * @return void
-     */
     public function removeDeflateFilter(): void
     {
-        if (!$this->filter) {
-            return;
-        }
-        stream_filter_remove($this->filter);
-        $this->filter = null;
+        trigger_error('Method ' . __METHOD__ . ' is deprecated', E_USER_DEPRECATED);
     }
 
-    /**
-     * Add a deflate filter
-     *
-     * @param Option\File $options
-     * @return void
-     */
     public function addDeflateFilter(Option\File $options): void
     {
-        $this->options = $options;
-        // parameter 4 for stream_filter_append expects array
-        // so we convert the option object in an array
-        $optionsArr = [
-            'comment' => $options->getComment(),
-            'method' => $options->getMethod(),
-            'deflateLevel' => $options->getDeflateLevel(),
-            'time' => $options->getTime(),
-        ];
-        $this->filter = stream_filter_append(
-            $this->stream,
-            'zlib.deflate',
-            STREAM_FILTER_READ,
-            $optionsArr
-        );
+        trigger_error('Method ' . __METHOD__ . ' is deprecated', E_USER_DEPRECATED);
     }
 }

src/File.php

@@ -120,7 +120,7 @@ public function processPath(string $path): void
         } else {
             $this->method = $this->zip->opt->getLargeFileMethod();
 
-            $stream = new DeflateStream(fopen($path, 'rb'));
+            $stream = new Stream(fopen($path, 'rb'));
             $this->processStream($stream);
             $stream->close();
         }
@@ -463,19 +463,6 @@ protected function processStreamWithComputedHeader(StreamInterface $stream): voi
         $this->readStream($stream, self::COMPUTE);
         $stream->rewind();
 
-        // incremental compression with deflate_add
-        // makes this second read unnecessary
-        // but it is only available from PHP 7.0
-        if (!$this->deflate && $stream instanceof DeflateStream && $this->method->equals(Method::DEFLATE())) {
-            $stream->addDeflateFilter($this->opt);
-            $this->zlen = new Bigint();
-            while (!$stream->eof()) {
-                $data = $stream->read(self::CHUNKED_READ_BLOCK_SIZE);
-                $this->zlen = $this->zlen->add(Bigint::init(strlen($data)));
-            }
-            $stream->rewind();
-        }
-
         $this->addFileHeader();
         $this->readStream($stream, self::SEND);
         $this->addFileFooter();

src/ZipStream.php

@@ -299,7 +299,7 @@ public function addFileFromStream(string $name, $stream, ?FileOptions $options =
         $options->defaultTo($this->opt);
 
         $file = new File($this, $name, $options);
-        $file->processStream(new DeflateStream($stream));
+        $file->processStream(new Stream($stream));
     }
 
     /**