Drop legacy PHP 5.3 and legacy HHVM support

.travis.yml

@@ -5,10 +5,6 @@ dist: trusty
 
 matrix:
   include:
-    - php: 5.3
-      dist: precise
-      script:
-        - vendor/bin/phpunit --coverage-text --verbose || [[ $? = 139 ]] # ignore SEGFAULT on legacy PHP 5.3 only
     - php: 5.4
     - php: 5.5
     - php: 5.6
@@ -24,10 +20,8 @@ matrix:
         - choco install php
         - choco install composer
         - export PATH="$(powershell -Command '("Process", "Machine" | % { [Environment]::GetEnvironmentVariable("PATH", $_) -Split ";" -Replace "\\$", "" } | Select -Unique | % { cygpath $_ }) -Join ":"')"
-    - php: hhvm-3.18
   allow_failures:
     - os: windows
-    - php: hhvm-3.18
 
 install:
   - composer install --no-interaction

README.md

@@ -225,13 +225,10 @@ See also [`Compressor`](#compressor) for more details.
 ### Inconsistencies
 
 The stream compression filters are not exactly the most commonly used features of PHP.
-As such, we've spotted several inconsistencies (or *bugs*) between different PHP versions and HHVM.
+As such, we've spotted some inconsistencies (or *bugs*) in different PHP versions.
 These inconsistencies exist in the underlying PHP engines and there's little we can do about this in this library.
 
-* All Zend PHP versions: Decompressing invalid data does not emit any data (and does not raise an error)
-* HHVM only: does not currently support the GZIP and ZLIB format at all (and does not raise an error)
-* HHVM only: The [`zlib.deflate` filter function](https://github.com/facebook/hhvm/blob/fee8ae39ce395c7b9b8910dfde6f22a7745aea83/hphp/system/php/stream/default-filters.php#L77) buffers the whole string. This means that compressing a stream of 100 MB actually stores the whole string in memory before invoking the underlying compression algorithm.
-* PHP 5.3 only: Tends to SEGFAULT occasionally on shutdown?
+* All PHP versions: Decompressing invalid data does not emit any data (and does not raise an error)
 
 Our test suite contains several test cases that exhibit these issues.
 If you feel some test case is missing or outdated, we're happy to accept PRs! :)
@@ -251,16 +248,18 @@ $ composer require clue/zlib-react:^0.2.2
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
 
 This project aims to run on any platform and thus does not require any PHP
-extensions and supports running on legacy PHP 5.3 through current PHP 7+ and
-HHVM.
+extensions and supports running on legacy PHP 5.4 through current PHP 7+.
 It's *highly recommended to use PHP 7+* for this project.
-Older PHP versions may suffer from a number of inconsistencies documented above.
 
 The `ext-zlib` extension is not required to install this library, however it
 is required to actually do anything meaningful with this library.
 Each of the above methods will throw an `Exception` if this extension is
 missing.
 
+We're committed to providing a smooth upgrade path for legacy setups.
+If you need to support legacy PHP 5.3 and legacy HHVM, you may want to check out
+the legacy `v0.2.x` release branch.
+
 ## Tests
 
 To run the test suite, you first need to clone this repo and then install all

composer.json

@@ -11,7 +11,7 @@
         }
     ],
     "require": {
-        "php": ">=5.3",
+        "php": ">=5.4",
         "clue/stream-filter": "~1.3",
         "react/stream": "^1.0 || ^0.7 || ^0.6"
     },

examples/91-benchmark-compress.php

@@ -23,7 +23,7 @@
 }
 
 if (!defined('ZLIB_ENCODING_GZIP')) {
-    fwrite(STDERR, 'Requires PHP 5.4+ with ext-zlib enabled' . PHP_EOL);
+    fwrite(STDERR, 'Requires PHP with ext-zlib enabled' . PHP_EOL);
     exit(1);
 }
 

examples/92-benchmark-decompress.php

@@ -27,7 +27,7 @@
 }
 
 if (!defined('ZLIB_ENCODING_GZIP')) {
-    fwrite(STDERR, 'Requires PHP 5.4+ with ext-zlib enabled' . PHP_EOL);
+    fwrite(STDERR, 'Requires PHP with ext-zlib enabled' . PHP_EOL);
     exit(1);
 }
 

examples/gunzip.php

@@ -8,7 +8,7 @@
 }
 
 if (!defined('ZLIB_ENCODING_GZIP')) {
-    fwrite(STDERR, 'Requires PHP 5.4+ with ext-zlib enabled' . PHP_EOL);
+    fwrite(STDERR, 'Requires PHP with ext-zlib enabled' . PHP_EOL);
     exit(1);
 }
 

examples/gzip.php

@@ -8,7 +8,7 @@
 }
 
 if (!defined('ZLIB_ENCODING_GZIP')) {
-    fwrite(STDERR, 'Requires PHP 5.4+ with ext-zlib enabled' . PHP_EOL);
+    fwrite(STDERR, 'Requires PHP with ext-zlib enabled' . PHP_EOL);
     exit(1);
 }
 

tests/FunctionalExamplesTest.php

@@ -7,9 +7,6 @@ public function setUp()
         if (DIRECTORY_SEPARATOR === '\\') {
             $this->markTestSkipped('Non-blocking console I/O not supported on Windows');
         }
-        if (defined('HHVM_VERSION')) {
-            $this->markTestSkipped('Not supported on HHVM (ignores window size / encoding format)');
-        }
     }
     public function testChain()
     {

tests/ZlibFilterDeflateDecompressorTest.php

@@ -33,8 +33,6 @@ public function testInflateHelloWorld()
 
     public function testInflateBig()
     {
-        if (defined('HHVM_VERSION')) $this->markTestSkipped('Not supported on HHVM (final chunk will not be emitted)');
-
         $this->decompressor->on('data', function ($data) use (&$buffered) {
             $buffered .= $data;
         });
@@ -52,7 +50,7 @@ public function testInflateBig()
 
     public function testInflateInvalid()
     {
-        if (!defined('HHVM_VERSION')) $this->markTestSkipped('Only supported on HHVM (other engines do not reject invalid data)');
+        $this->markTestSkipped('Not supported by any PHP version (neither does reject invalid data)');
 
         $this->decompressor->on('data', $this->expectCallableNever());
         $this->decompressor->on('error', $this->expectCallableOnce());

tests/ZlibFilterGzipCompressorTest.php

@@ -8,8 +8,6 @@ class ZlibFilterGzipCompressorTest extends TestCase
 
     public function setUp()
     {
-        if (defined('HHVM_VERSION')) $this->markTestSkipped('Not supported on HHVM (ignores window size / encoding format)');
-
         $this->compressor = ZlibFilterStream::createGzipCompressor();
     }
 

tests/ZlibFilterGzipDecompressorTest.php

@@ -8,8 +8,6 @@ class ZlibFilterGzipDecompressorTest extends TestCase
 
     public function setUp()
     {
-        if (defined('HHVM_VERSION')) $this->markTestSkipped('Not supported on HHVM (ignores window size / encoding format)');
-
         $this->decompressor = ZlibFilterStream::createGzipDecompressor();
     }
 
@@ -52,7 +50,7 @@ public function testDecompressBig()
 
     public function testDecompressInvalid()
     {
-        $this->markTestSkipped('Not supported by any PHP engine (neither does reject invalid data)');
+        $this->markTestSkipped('Not supported by any PHP version (neither does reject invalid data)');
 
         $this->decompressor->on('data', $this->expectCallableNever());
         $this->decompressor->on('error', $this->expectCallableOnce());

tests/ZlibFilterZlibCompressorTest.php

@@ -8,8 +8,6 @@ class ZlibFilterZlibCompressorTest extends TestCase
 
     public function setUp()
     {
-        if (defined('HHVM_VERSION')) $this->markTestSkipped('Not supported on HHVM (ignores window size / encoding format)');
-
         $this->compressor = ZlibFilterStream::createZlibCompressor();
     }
 

tests/ZlibFilterZlibDecompressorTest.php

@@ -8,8 +8,6 @@ class ZlibFilterZlibDecompressorTest extends TestCase
 
     public function setUp()
     {
-        if (defined('HHVM_VERSION')) $this->markTestSkipped('Not supported on HHVM (ignores window size / encoding format)');
-
         $this->decompressor = ZlibFilterStream::createZlibDecompressor();
     }
 
@@ -52,7 +50,7 @@ public function testDecompressBig()
 
     public function testDecompressInvalid()
     {
-        $this->markTestSkipped('Not supported by any PHP engine (neither does reject invalid data)');
+        $this->markTestSkipped('Not supported by any PHP version (neither does reject invalid data)');
 
         $this->decompressor->on('data', $this->expectCallableNever());
         $this->decompressor->on('error', $this->expectCallableOnce());