Bug #77229 [Opn]: Phar::buildFromDirectory() generates tar archives in 'PAX' format

Edit report at https://bugs.php.net/bug.php?id=77229&edit=1 ID: 77229 User updated by: michae dot lee at zerustech dot com Reported by: michae dot lee at zerustech dot com Summary: Phar::buildFromDirectory() generates tar archives in 'PAX' format Status: Open Type: Bug Package: PHAR related Operating System: macOS High Sierra 10.13.6 PHP Version: Irrelevant Block user comment: N Private report: N New Comment: PHP version is 7.2.4 Previous Comments: ------------------------------------------------------------------------ [2018-12-03 02:54:23] michae dot lee at zerustech dot com Description: ------------ The Phar::buildFromDirectory() method generates tar archives in PAX format, so different tar archives that contain the same files may have different sha1 checksums. Test script: --------------- <?php // mkdir test && echo 'hello' > test/test.txt $phar = new \PharData('a.tar'); $phar->buildFromDirectory('test'); // sleep for 1 second to produce different atime. sleep(1); $phar = new \PharData('b.tar'); $phar->buildFromDirectory('test'); echo sha1_file('a.tar') . "\n"; echo sha1_file('b.tar') . "\n"; // a.tar and b.tar contain the same files, but have different checksums // Looks like the buildFromDirectory() method generates tar archives // with PAX headers. Calling "tar --format=ustar -cf ..." from command line // resolves this issue. Expected result: ---------------- The sha1 checksums for a.tar and b.tar should be the same. Actual result: -------------- The sha1 checksums for a.tar and b.tar are different. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77229&edit=1