diff --git a/src/Symfony/Component/Filesystem/Filesystem.php b/src/Symfony/Component/Filesystem/Filesystem.php
index 98725e914993..23192bc74c23 100644
--- a/src/Symfony/Component/Filesystem/Filesystem.php
+++ b/src/Symfony/Component/Filesystem/Filesystem.php
@@ -669,6 +669,12 @@ public function dumpFile(string $filename, $content)
$dir = \dirname($filename);
+ if (is_link($filename) && $linkTarget = $this->readlink($filename)) {
+ $this->dumpFile(Path::makeAbsolute($linkTarget, $dir), $content);
+
+ return;
+ }
+
if (!is_dir($dir)) {
$this->mkdir($dir);
}
diff --git a/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php b/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
index 768b9db6f97b..252635bc95e8 100644
--- a/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
+++ b/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
@@ -1091,14 +1091,16 @@ public function testReadBrokenLink()
{
$this->markAsSkippedIfSymlinkIsMissing();
- if ('\\' === \DIRECTORY_SEPARATOR) {
- $this->markTestSkipped('Windows does not support creating "broken" symlinks');
+ if ('\\' === \DIRECTORY_SEPARATOR && \PHP_VERSION_ID < 70400) {
+ $this->markTestSkipped('Windows does not support reading "broken" symlinks in PHP < 7.4.0');
}
$file = $this->workspace.'/file';
$link = $this->workspace.'/link';
+ touch($file);
$this->filesystem->symlink($file, $link);
+ $this->filesystem->remove($file);
$this->assertEquals($file, $this->filesystem->readlink($link));
$this->assertNull($this->filesystem->readlink($link, true));
@@ -1605,6 +1607,38 @@ public function testDumpFileOverwritesAnExistingFile()
$this->assertStringEqualsFile($filename, 'bar');
}
+ public function testDumpFileFollowsSymlink()
+ {
+ $filename = $this->workspace.\DIRECTORY_SEPARATOR.'foo.txt';
+ file_put_contents($filename, 'FOO BAR');
+ $linknameA = $this->workspace.\DIRECTORY_SEPARATOR.'bar.txt';
+ $linknameB = $this->workspace.\DIRECTORY_SEPARATOR.'baz.txt';
+ $this->filesystem->symlink($filename, $linknameA);
+ $this->filesystem->symlink($linknameA, $linknameB);
+
+ $this->filesystem->dumpFile($linknameB, 'bar');
+
+ $this->assertFileExists($filename);
+ $this->assertFileExists($linknameA);
+ $this->assertFileExists($linknameB);
+ $this->assertStringEqualsFile($filename, 'bar');
+ $this->assertStringEqualsFile($linknameA, 'bar');
+ $this->assertStringEqualsFile($linknameB, 'bar');
+
+ // Windows does not support reading "broken" symlinks in PHP < 7.4.0
+ if ('\\' === \DIRECTORY_SEPARATOR && \PHP_VERSION_ID < 70400) {
+ return;
+ }
+
+ $this->filesystem->remove($filename);
+ $this->filesystem->dumpFile($linknameB, 'baz');
+
+ $this->assertFileExists($filename);
+ $this->assertStringEqualsFile($filename, 'baz');
+ $this->assertStringEqualsFile($linknameA, 'baz');
+ $this->assertStringEqualsFile($linknameB, 'baz');
+ }
+
public function testDumpFileWithFileScheme()
{
$scheme = 'file://';
@@ -1678,6 +1712,35 @@ public function testAppendToFileWithResource()
}
}
+ public function testAppendToFileFollowsSymlink()
+ {
+ $filename = $this->workspace.\DIRECTORY_SEPARATOR.'foo.txt';
+ file_put_contents($filename, 'foo');
+ $linknameA = $this->workspace.\DIRECTORY_SEPARATOR.'bar.txt';
+ $linknameB = $this->workspace.\DIRECTORY_SEPARATOR.'baz.txt';
+ $this->filesystem->symlink($filename, $linknameA);
+ $this->filesystem->symlink($linknameA, $linknameB);
+
+ $this->filesystem->appendToFile($linknameA, 'bar');
+ $this->filesystem->appendToFile($linknameB, 'baz');
+
+ $this->assertFileExists($filename);
+ $this->assertFileExists($linknameA);
+ $this->assertFileExists($linknameB);
+ $this->assertStringEqualsFile($filename, 'foobarbaz');
+ $this->assertStringEqualsFile($linknameA, 'foobarbaz');
+ $this->assertStringEqualsFile($linknameB, 'foobarbaz');
+
+ $this->filesystem->remove($filename);
+ $this->filesystem->appendToFile($linknameB, 'foo');
+ $this->filesystem->appendToFile($linknameA, 'bar');
+
+ $this->assertFileExists($filename);
+ $this->assertStringEqualsFile($filename, 'foobar');
+ $this->assertStringEqualsFile($linknameA, 'foobar');
+ $this->assertStringEqualsFile($linknameB, 'foobar');
+ }
+
public function testAppendToFileWithScheme()
{
$scheme = 'file://';
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