Improved build process on Travis CI (#53)

* Setting up the PHP_CodeSniffer

* Fixed code style

* Improved build process on Travis CI

* Add PHP 5.6 to allow_failures block

Refs:
#46 (comment)

* Moved all tests to the its own namespace

* Add jaeger-idl to the ignore paths

* Amended docs

.gitignore

@@ -1,8 +1,15 @@
-.settings/
+.settings
 .buildpath
 .project
 .idea
+
+jaeger-idl
 vendor
+
 composer.lock
+composer.phar
+
 jaeger-client-php.iml
+
 phpunit.xml
+phpcs.xml

.travis.yml

@@ -1,12 +1,34 @@
+sudo: false
+dist: trusty
+
 language: php
+
 php:
+  - '5.6'
   - '7.0'
   - '7.1'
   - '7.2'
   - nightly
 
+git:
+  depth: 1
+
+matrix:
+  fast_finish: true
+  allow_failures:
+    - php: '5.6'
+    - php: nightly
+
 install:
-- composer install
+  - |
+    composer install \
+        --prefer-dist \
+        --no-interaction \
+        --no-ansi \
+        --no-progress \
+        --optimize-autoloader \
+        --no-suggest
 
 script:
-- vendor/bin/phpunit
+  - vendor/bin/phpcs
+  - vendor/bin/phpunit

composer.json

@@ -1,25 +1,28 @@
 {
     "name": "jonahgeorge/jaeger-client-php",
+    "description": "Jaeger Bindings for PHP OpenTracing API",
     "license": "MIT",
     "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
-        "php": ">=7.0",
+        "php": "^5.6||^7.0",
+        "ext-sockets": "*",
         "packaged/thrift": "0.10.0",
         "opentracing/opentracing" : "1.0.0-beta5",
         "phlib/base_convert": "^1.0",
-        "psr/log": "1.0.2",
-         "ext-sockets": "*"
+        "psr/log": "1.0.2"
     },
     "provide": {
         "opentracing/opentracing": "1.0.0-beta5"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.4"
+        "phpunit/phpunit": "~5.6||^6.4",
+        "squizlabs/php_codesniffer": "3.*"
     },
     "autoload": {
         "psr-4": {
-            "Jaeger\\": "src/Jaeger/"
+            "Jaeger\\": "src/Jaeger/",
+            "Jaeger\\Tests\\": "tests/Jaeger/"
         },
         "files": [
             "./src/Jaeger/Constants.php"

phpcs.xml.dist

@@ -0,0 +1,37 @@
+<?xml version="1.0"?>
+<ruleset name="Jaeger">
+
+    <!--
+        The name attribute of the ruleset tag is displayed
+        when running PHP_CodeSniffer with the -v command line
+        argument. The description tag below is not displayed anywhere
+        except in this file, so it can contain information for
+        developers who may change this file in the future.
+    -->
+    <description>The coding standard for Jaeger Client</description>
+
+    <!-- Show sniff codes in all reports -->
+    <arg value="s"/>
+
+    <!-- Use PSR-2 as a base -->
+    <rule ref="PSR2"/>
+
+    <!-- Uncomment to use colors in progress or report -->
+    <!-- arg name="colors" / -->
+
+    <!--
+        If no files or directories are specified on the command line
+        your custom standard can specify what files should be checked
+        instead.
+        Note that specifying any file or directory path
+        on the command line will ignore all file tags.
+    -->
+    <file>src</file>
+
+    <!--
+        You can hard-code ignore patterns directly into your
+        custom standard so you don't have to specify the
+        patterns on the command line.
+    -->
+    <exclude-pattern>src/Jaeger/Thrift/*</exclude-pattern>
+</ruleset>

src/Jaeger/Codec/BinaryCodec.php

@@ -7,16 +7,33 @@
 
 class BinaryCodec implements CodecInterface
 {
+    /**
+     * {@inheritdoc}
+     *
+     * @see \Jaeger\Tracer::inject
+     *
+     * @param SpanContext $spanContext
+     * @param mixed $carrier
+     *
+     * @return void
+     */
     public function inject(SpanContext $spanContext, &$carrier)
     {
         throw new UnsupportedFormat('Binary encoding not implemented');
     }
 
-    /** 
-     * @return SpanContext|null 
+    /**
+     * {@inheritdoc}
+     *
+     * @see \Jaeger\Tracer::extract
+     *
+     * @param mixed $carrier
+     * @return SpanContext|null
+     *
+     * @throws UnsupportedFormat
      */
     public function extract($carrier)
     {
         throw new UnsupportedFormat('Binary encoding not implemented');
     }
-}
+}

src/Jaeger/Codec/CodecInterface.php

@@ -6,10 +6,31 @@
 
 interface CodecInterface
 {
+    /**
+     * Handle the logic behind injecting propagation scheme specific information into the carrier
+     * (e.g. http request headers, amqp message headers, etc.).
+     *
+     * This method can modify the carrier.
+     *
+     * @see \Jaeger\Tracer::inject
+     *
+     * @param SpanContext $spanContext
+     * @param mixed $carrier
+     *
+     * @return void
+     */
     public function inject(SpanContext $spanContext, &$carrier);
 
-    /** 
-     * @return SpanContext|null 
+    /**
+     * Handle the logic behind extracting propagation-scheme specific information from carrier
+     * (e.g. http request headers, amqp message headers, etc.).
+     *
+     * This method must not modify the carrier.
+     *
+     * @see \Jaeger\Tracer::extract
+     *
+     * @param mixed $carrier
+     * @return SpanContext|null
      */
     public function extract($carrier);
-}
+}

src/Jaeger/Codec/TextCodec.php

@@ -30,15 +30,24 @@ public function __construct(
         string $traceIdHeader = TRACE_ID_HEADER,
         string $baggageHeaderPrefix = BAGGAGE_HEADER_PREFIX,
         string $debugIdHeader = DEBUG_ID_HEADER_KEY
-    )
-    {
+    ) {
         $this->urlEncoding = $urlEncoding;
         $this->traceIdHeader = str_replace('_', '-', strtolower($traceIdHeader));
         $this->baggagePrefix = str_replace('_', '-', strtolower($baggageHeaderPrefix));
         $this->debugIdHeader = str_replace('_', '-', strtolower($debugIdHeader));
         $this->prefixLength = strlen($baggageHeaderPrefix);
     }
 
+    /**
+     * {@inheritdoc}
+     *
+     * @see \Jaeger\Tracer::inject
+     *
+     * @param SpanContext $spanContext
+     * @param mixed $carrier
+     *
+     * @return void
+     */
     public function inject(SpanContext $spanContext, &$carrier)
     {
         $carrier[$this->traceIdHeader] = $this->spanContextToString(
@@ -65,9 +74,11 @@ public function inject(SpanContext $spanContext, &$carrier)
     }
 
     /**
-     * Extract a span context from a carrier.
+     * {@inheritdoc}
+     *
+     * @see \Jaeger\Tracer::extract
      *
-     * @param array|\Traversable $carrier
+     * @param mixed $carrier
      * @return SpanContext|null
      *
      * @throws Exception

src/Jaeger/Codec/ZipkinCodec.php

@@ -18,8 +18,14 @@ class ZipkinCodec implements CodecInterface
     const FLAGS_NAME = 'X-B3-Flags';
 
     /**
+     * {@inheritdoc}
+     *
+     * @see \Jaeger\Tracer::inject
+     *
      * @param SpanContext $spanContext
-     * @param array $carrier
+     * @param mixed $carrier
+     *
+     * @return void
      */
     public function inject(SpanContext $spanContext, &$carrier)
     {
@@ -32,7 +38,11 @@ public function inject(SpanContext $spanContext, &$carrier)
     }
 
     /**
-     * @param array $carrier
+     * {@inheritdoc}
+     *
+     * @see \Jaeger\Tracer::extract
+     *
+     * @param mixed $carrier
      * @return SpanContext|null
      */
     public function extract($carrier)
@@ -43,7 +53,9 @@ public function extract($carrier)
         $flags = 0;
 
         if (isset($carrier[strtolower(self::SAMPLED_NAME)])) {
-            if ($carrier[strtolower(self::SAMPLED_NAME)] === "1" || strtolower($carrier[strtolower(self::SAMPLED_NAME)] === "true")) {
+            if ($carrier[strtolower(self::SAMPLED_NAME)] === "1" ||
+                strtolower($carrier[strtolower(self::SAMPLED_NAME)] === "true")
+            ) {
                 $flags = $flags | SAMPLED_FLAG;
             }
         }

src/Jaeger/Config.php

@@ -157,7 +157,11 @@ private function getSampler(): SamplerInterface
      */
     private function getLocalAgentSender(): UdpSender
     {
-        $udp = new ThriftUdpTransport($this->getLocalAgentReportingHost(), $this->getLocalAgentReportingPort(), $this->logger);
+        $udp = new ThriftUdpTransport(
+            $this->getLocalAgentReportingHost(),
+            $this->getLocalAgentReportingPort(),
+            $this->logger
+        );
 
         $transport = new TBufferedTransport($udp, $this->getMaxBufferLength(), $this->getMaxBufferLength());
         try {

src/Jaeger/Constants.php

@@ -86,7 +86,7 @@
 
 const DEFAULT_SAMPLING_PORT = 5778;
 
-const LOCAL_AGENT_DEFAULT_ENABLED = True;
+const LOCAL_AGENT_DEFAULT_ENABLED = true;
 
 const ZIPKIN_SPAN_FORMAT = 'zipkin-span-format';
 

src/Jaeger/Sampler/ConstSampler.php

@@ -1,6 +1,7 @@
 <?php
 
 namespace Jaeger\Sampler;
+
 use const Jaeger\SAMPLER_PARAM_TAG_KEY;
 use const Jaeger\SAMPLER_TYPE_CONST;
 use const Jaeger\SAMPLER_TYPE_TAG_KEY;

src/Jaeger/Sender/UdpSender.php

@@ -167,7 +167,8 @@ private function addZipkinAnnotations(JaegerSpan $span, Endpoint $endpoint)
                 $host = $this->makeEndpoint(
                     $span->peer['ipv4'] ?? 0,
                     $span->peer['port'] ?? 0,
-                    $span->peer['service_name'] ?? '');
+                    $span->peer['service_name'] ?? ''
+                );
 
                 $key = ($isClient) ? self::SERVER_ADDR : self::CLIENT_ADDR;
 

src/Jaeger/Span.php

@@ -88,8 +88,7 @@ public function __construct(
         string $operationName,
         array $tags = [],
         $startTime = null
-    )
-    {
+    ) {
         $this->context = $context;
         $this->tracer = $tracer;
 
@@ -205,7 +204,7 @@ public function overwriteOperationName($newOperationName)
     /**
      * {@inheritdoc}
      *
-     * @param array|\Traversable $tags
+     * @param array $tags
      * @return void
      */
     public function setTags($tags)

src/Jaeger/SpanContext.php

@@ -67,7 +67,13 @@ public function getBaggageItem($key)
      */
     public function withBaggageItem($key, $value)
     {
-        return new self($this->traceId, $this->spanId, $this->parentId, $this->flags, [$key => $value] + $this->baggage);
+        return new self(
+            $this->traceId,
+            $this->spanId,
+            $this->parentId,
+            $this->flags,
+            [$key => $value] + $this->baggage
+        );
     }
 
     public function getTraceId()

src/Jaeger/ThriftUdpTransport.php

@@ -58,7 +58,7 @@ public function isOpen()
     public function open()
     {
         $ok = @socket_connect($this->socket, $this->host, $this->port);
-        if ($ok === FALSE) {
+        if ($ok === false) {
             throw new TTransportException('socket_connect failed');
         }
     }
@@ -75,9 +75,10 @@ public function close()
     /**
      * Read some data into the array.
      *
+     * @todo
+     *
      * @param int $len How much to read
      * @return string The data that has been read
-     * @throws TTransportException if cannot read any more data
      */
     public function read($len)
     {
@@ -96,7 +97,7 @@ public function write($buf)
         }
 
         $ok = @socket_write($this->socket, $buf);
-        if ($ok === FALSE) {
+        if ($ok === false) {
             throw new TTransportException('socket_write failed');
         }
     }