Fix command output truncated at first empty line

src/Logger/Logger.php

@@ -46,15 +46,15 @@ public function print(Host $host, string $buffer, bool $force = false): void
     {
         if ($this->output->isVerbose() || $force) {
             foreach (explode("\n", rtrim($buffer)) as $line) {
-                if (empty($line)) {
-                    return;
+                if ($line === '') {
+                    continue;
                 }
                 $this->output->writeln("[{$host->getTag()}] $line");
             }
         }
         foreach (explode("\n", rtrim($buffer)) as $line) {
-            if (empty($line)) {
-                return;
+            if ($line === '') {
+                continue;
             }
             $this->fileLog->writeln("[{$host->getAlias()}] $line");
         }

tests/src/Logger/LoggerTest.php

@@ -101,6 +101,50 @@ public function testPrintWritesToOutputWhenForced(): void
         $logger->print($this->host, "output line\n", true);
     }
 
+    public function testPrintSkipsEmptyLinesWithoutTruncatingOutput(): void
+    {
+        $output = $this->createMock(OutputInterface::class);
+        $output->method('isVerbose')->willReturn(true);
+        $writelnArgs = [];
+        $output->expects($this->exactly(4))
+            ->method('writeln')
+            ->willReturnCallback(function ($msg) use (&$writelnArgs) {
+                $writelnArgs[] = $msg;
+            });
+
+        $fileLog = $this->createStub(HandlerInterface::class);
+
+        $logger = new Logger($output, $fileLog);
+        $logger->print($this->host, "first\n\nsecond\n0\n\nthird\n");
+
+        $this->assertStringEndsWith('first', $writelnArgs[0]);
+        $this->assertStringEndsWith('second', $writelnArgs[1]);
+        $this->assertStringEndsWith('0', $writelnArgs[2]);
+        $this->assertStringEndsWith('third', $writelnArgs[3]);
+    }
+
+    public function testPrintWritesAllNonEmptyLinesToFileLog(): void
+    {
+        $output = $this->createStub(OutputInterface::class);
+        $output->method('isVerbose')->willReturn(false);
+
+        $fileLog = $this->createMock(HandlerInterface::class);
+        $writelnArgs = [];
+        $fileLog->expects($this->exactly(4))
+            ->method('writeln')
+            ->willReturnCallback(function ($msg) use (&$writelnArgs) {
+                $writelnArgs[] = $msg;
+            });
+
+        $logger = new Logger($output, $fileLog);
+        $logger->print($this->host, "first\n\nsecond\n0\n\nthird\n");
+
+        $this->assertSame('[test-host] first', $writelnArgs[0]);
+        $this->assertSame('[test-host] second', $writelnArgs[1]);
+        $this->assertSame('[test-host] 0', $writelnArgs[2]);
+        $this->assertSame('[test-host] third', $writelnArgs[3]);
+    }
+
     public function testStartTaskDefault(): void
     {
         $output = $this->createMock(OutputInterface::class);