Facepalm

Author: schmengler

.travis/before_script.sh

@@ -29,7 +29,7 @@ composer config repositories.travis_to_test git https://github.com/$TRAVIS_REPO_
 composer require ${COMPOSER_PACKAGE_NAME}:dev-${TRAVIS_BRANCH}\#{$TRAVIS_COMMIT}
 
 # Install dev dependencies of module
-php ../.travis/merge-dev.php `pwd`/vendor/$COMPOSER_PACKAGE_NAME/composer.json `pwd`/composer.json | tee composer.json
+php ../.travis/merge-dev.php vendor/$COMPOSER_PACKAGE_NAME/composer.json composer.json
 composer update
 
 # prepare for test suite

.travis/merge-dev.php

@@ -5,7 +5,6 @@
  * This is used to install the module within a Magento 2 installation, but with its dev dependencies
  */
 declare(strict_types=1);
-ob_start();
 
 $sourceFile = $argv[1];
 $targetFile = $argv[2];
@@ -28,6 +27,4 @@
 $targetJson['require-dev'] = array_replace_recursive($targetJson['require-dev'] ?? [], $sourceJson['require-dev']);
 $targetJson['autoload-dev'] = array_merge_recursive($targetJson['autoload-dev'] ?? [], $sourceJson['autoload-dev']);
 
-fwrite(STDERR, ob_get_clean());
-
-echo json_encode($targetJson, JSON_PRETTY_PRINT);
+file_put_contents($targetFile, json_encode($targetJson, JSON_PRETTY_PRINT));