chore: update logging to new samples format (#1643)

Author: bshaffer

logging/README.md

@@ -8,9 +8,16 @@
 This directory contains samples for calling [Stackdriver Logging][logging]
 from PHP.
 
-`logging.php` is a simple command-line program to demonstrate writing to a log,
-listing its entries, deleting it, interacting with sinks to export logs to
-Google Cloud Storage.
+Execute the snippets in the [src/](src/) directory by running
+`php src/SNIPPET_NAME.php`. The usage will print for each if no arguments
+are provided:
+```sh
+$ php src/list_entries.php
+Usage: php src/list_entries.php PROJECT_ID LOGGER_NAME
+
+$ php src/list_entries.php your-project-id 'your-logger-name'
+[list of entries...]
+```
 
 To use logging sinks, you will also need a Google Cloud Storage Bucket.
 
@@ -27,11 +34,4 @@ Use the [Cloud SDK](https://cloud.google.com/sdk) to provide authentication:
 
     gcloud beta auth application-default login
 
-Run the samples:
-
-    ```
-    php logging.php list # For getting sub command list
-    php logging.php help write # For showing help for write sub command `write`
-    ```
-
 [logging]: https://cloud.google.com/logging/docs/reference/libraries

logging/composer.json

@@ -1,15 +1,6 @@
 {
     "require": {
         "google/cloud-logging": "^1.20.0",
-        "symfony/console": "^5.0",
         "monolog/monolog": "^2.0"
-    },
-    "autoload": {
-        "files": [
-            "src/log_entry_functions.php",
-            "src/write_with_psr_logger.php",
-            "src/write_with_monolog_logger.php",
-            "src/sink_functions.php"
-        ]
     }
 }

logging/logging.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Cloud\Samples\Logging;
+
+// [START logging_create_sink]
+use Google\Cloud\Logging\LoggingClient;
+
+/**
+ * Create a log sink.
+ *
+ * @param string $projectId The Google project ID.
+ * @param string $sinkName The name of the sink.
+ * @param string $destination The destination of the sink.
+ * @param string $filterString The filter for the sink.
+ */
+function create_sink($projectId, $sinkName, $destination, $filterString)
+{
+    $logging = new LoggingClient(['projectId' => $projectId]);
+    $logging->createSink(
+        $sinkName,
+        $destination,
+        ['filter' => $filterString]
+    );
+    printf("Created a sink '%s'." . PHP_EOL, $sinkName);
+}
+// [END logging_create_sink]
+
+// The following 2 lines are only needed to run the samples
+require_once __DIR__ . '/../../testing/sample_helpers.php';
+\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);

logging/src/create_sink.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Cloud\Samples\Logging;
+
+// [START logging_delete_log]
+use Google\Cloud\Logging\LoggingClient;
+
+/** Delete a logger and all its entries.
+ *
+ * @param string $projectId The Google project ID.
+ * @param string $loggerName The name of the logger.
+ */
+function delete_logger($projectId, $loggerName)
+{
+    $logging = new LoggingClient(['projectId' => $projectId]);
+    $logger = $logging->logger($loggerName);
+    $logger->delete();
+    printf("Deleted a logger '%s'." . PHP_EOL, $loggerName);
+}
+// [END logging_delete_log]
+
+// The following 2 lines are only needed to run the samples
+require_once __DIR__ . '/../../testing/sample_helpers.php';
+\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);