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Fix false read-only detection of sessions on Windows with OneDrive

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see https://discourse.ardour.org/t/ardour-8-4-on-win11-amd64-always-opens-session-in-read-only-mode/110063/38?u=x42
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Robin Gareus 2025-05-14 20:21:27 +02:00
parent 9494ecf6e9
commit 6c8a2ec05b
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3
libs/pbd/file_utils.cc
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@ -526,11 +526,14 @@ exists_and_writable (const std::string & p)
/* doesn't exist - not writable */
return false;
} else {
#ifndef PLATFORM_WINDOWS
/* Folders on Windows fail this test if they're on OneDrive */
DEBUG_TRACE (DEBUG::FileUtils, string_compose("exists_and_writable stat '%1': %2 \n", p, statbuf.st_mode));
if (!(statbuf.st_mode & S_IWUSR)) {
/* exists and is not writable */
return false;
}
#endif
/* filesystem may be mounted read-only, so even though file
* permissions permit access, the mount status does not.
* access(2) seems like the best test for this.