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Merge #12630: Provide useful error message if datadir is not writable.

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8674e74 Provide relevant error message if datadir is not writable. (murrayn)

Pull request description:

  If the --datadir exists, but is not writable, the current error message on startup is 'Cannot obtain a lock on data directory foo. Bitcoin Core is probably already running.' This is misleading.

  I believe this PR addresses #11668, although the issue is not Windows-specific.

Tree-SHA512: 10cbbaea433072aee4fb3e8938a72073c7a5c841f7a7685c9e12549c322b2925c7d34bac254ac33021b23132bfc352c058712bc9542298cf86f8fd9757f528b2
This commit is contained in:
Wladimir J. van der Laan
2018-03-22 14:57:46 +01:00
parent a6926b065d 8674e74b47
commit c290508a5e
4 changed files with 33 additions and 0 deletions
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16
src/test/util_tests.cpp
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@@ -817,4 +817,20 @@ BOOST_AUTO_TEST_CASE(test_LockDirectory)
fs::remove_all(dirname);
}
BOOST_AUTO_TEST_CASE(test_DirIsWritable)
{
// Should be able to write to the system tmp dir.
fs::path tmpdirname = fs::temp_directory_path();
BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), true);
// Should not be able to write to a non-existent dir.
tmpdirname = fs::temp_directory_path() / fs::unique_path();
BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), false);
fs::create_directory(tmpdirname);
// Should be able to write to it now.
BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), true);
fs::remove(tmpdirname);
}
BOOST_AUTO_TEST_SUITE_END()