Merge pull request #93 from xp-forge/feature/with-environment

Allow passing or removing environment variables

src/main/php/web/Environment.class.php

@@ -83,6 +83,23 @@ public function variable($name) {
     return false === ($env= getenv($name)) ? null : $env;
   }
 
+  /**
+   * Pass a given environment variable and value. Pass NULL in value to
+   * remove this environment variable.
+   *
+   * @param  string $name
+   * @param  ?string $value
+   * @return self
+   */
+  public function export($name, $value) {
+    if (null === $value) {
+      putenv($name);
+    } else {
+      putenv($name.'='.$value);
+    }
+    return $this;
+  }
+
   /**
    * Gets properties
    *

src/test/php/web/unittest/EnvironmentTest.class.php

@@ -49,6 +49,16 @@ public function variable() {
     Assert::equals('abc', (new Environment('dev', '.', 'static', []))->variable('XP_TEST'));
   }
 
+  #[Test, Values(['abc', ''])]
+  public function set_variable($value) {
+    Assert::equals($value, (new Environment('dev', '.', 'static', []))->export('test', $value)->variable('test'));
+  }
+
+  #[Test]
+  public function unset_variable() {
+    Assert::null((new Environment('dev', '.', 'static', []))->export('test', null)->variable('test'));
+  }
+
   #[Test]
   public function tempDir() {
     Assert::true(is_dir((new Environment('dev', '.', 'static', []))->tempDir()));