Enable compare_yaml_hashmaps.php

README.md

@@ -53,4 +53,12 @@ find_binary
 ```bash
 php find_binary.php <integer>
 ```
-Decompose an integer into powers of two
+Decompose an integer into powers of two
+
+compare_hashmaps
+----------------
+
+```bash
+php compare_yaml_hashmaps.php file1 file2
+```
+Compare 2 YAML hashmap files (such as symfony parameters.yml files)

Util/TextColorWriter.php

@@ -42,7 +42,7 @@ public static function textColor($string, $colorID)
      *
      * @return array
      */
-    private function getKnownColors()
+    private static function getKnownColors()
     {
         $colors = array(
             static::BASH_PROMPT_BLACK,

compare_yaml_hashmaps.php

@@ -0,0 +1,88 @@
+<?php
+
+require_once __DIR__.'/vendor/autoload.php';
+
+use Symfony\Component\Yaml\Yaml;
+
+/**
+ * Validate console input
+ *
+ * Die if input is not valid
+ *
+ * @param  array $argv user inputs
+ */
+function validateInput($argv)
+{
+    if (count($argv) !== 4) {
+        echo 'php compare_hashmaps <file1> <file2> <root_node>' . PHP_EOL;
+        die(1);
+    }
+
+    if (!file_exists($argv[1])) {
+        echo "Error: " . $argv[1] . " is not a valid file" . PHP_EOL;
+        die(1);
+    }
+    if (!file_exists($argv[2])) {
+        echo "Error: " . $argv[2] . " is not a valid file" . PHP_EOL;
+        die(1);
+    }
+}
+
+/**
+ * @param string $filepath
+ * @param string $rootNode
+ *
+ * @return array
+ * @throws Exception
+ */
+function extractArrayFromFile($filepath, $rootNode)
+{
+    $value = Yaml::parse(file_get_contents($filepath));
+
+    if (!array_key_exists($rootNode, $value)) {
+        $showKeys = implode(', ', array_keys($value));
+        throw new \RuntimeException("Expects root node '$rootNode'' in file $filepath, got: $showKeys");
+    }
+
+    return $value[$rootNode];
+}
+
+validateInput($argv);
+
+require 'Util/TextColorWriter.php';
+
+$filepath1 = $argv[1];
+$filepath2 = $argv[2];
+$rootNode = $argv[3];
+
+$list1 = extractArrayFromFile(realpath($filepath1), $rootNode);
+$list2 = extractArrayFromFile(realpath($filepath2), $rootNode);
+
+$inFile1ButNotInFile2 = [];
+$inFile2ButNotInFile1 = [];
+
+foreach ($list1 as $key => $value) {
+    if (!array_key_exists($key, $list2)) {
+        $inFile1ButNotInFile2[$key] = $value;
+    }
+}
+foreach ($list2 as $key => $value) {
+    if (!array_key_exists($key, $list1)) {
+        $inFile2ButNotInFile1[$key] = $value;
+    }
+}
+
+
+// echo result
+echo TextColorWriter::textColor('Done', TextColorWriter::BASH_PROMPT_GREEN) . PHP_EOL;
+echo TextColorWriter::textColor('Found in file 1 but not in file 2:', TextColorWriter::BASH_PROMPT_GREEN) . PHP_EOL;
+
+foreach ($inFile1ButNotInFile2 as $key => $value) {
+    echo '   - ' . $key . PHP_EOL;
+}
+
+echo TextColorWriter::textColor('Found in file 2 but not in file 1:', TextColorWriter::BASH_PROMPT_GREEN) . PHP_EOL;
+
+foreach ($inFile2ButNotInFile1 as $key => $value) {
+    echo '   - ' . $key . PHP_EOL;
+}

composer.json

@@ -0,0 +1,9 @@
+{
+    "name": "matks/php_scripts",
+    "description": "Useful php scripts",
+    "type": "library",
+    "require": {
+        "symfony/yaml": "^3.2"
+    },
+    "license": "MIT"
+}