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daemon: Handle EXDEV when moving to trash directory. 

Fixes <https://bugs.gnu.org/41607>.
Reported by Stephen Scheck <singularsyntax@gmail.com>.

* nix/libstore/gc.cc (LocalStore::deletePathRecursive): When we try to
move a dead directory into the trashDir using rename(2) but it returns
an EXDEV error, just delete the directory instead.  This can happen in a
Docker container when the directory is not on the "top layer".
This commit is contained in:
Chris Marusich 2020-06-04 23:26:19 -07:00
parent c39693d760
commit d445c30ea6
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1 changed files with 4 additions and 1 deletions
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nix/libstore/gc.cc
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@ -455,7 +455,10 @@ void LocalStore::deletePathRecursive(GCState & state, const Path & path)
throw SysError(format("unable to rename `%1%' to `%2%'") % path % tmp);
state.bytesInvalidated += size;
} catch (SysError & e) {
if (e.errNo == ENOSPC) {
/* In a Docker container, rename(2) returns EXDEV when the source
and destination are not both on the "top layer". See:
https://bugs.gnu.org/41607 */
if (e.errNo == ENOSPC || e.errNo == EXDEV) {
printMsg(lvlInfo, format("note: can't create move `%1%': %2%") % path % e.msg());
deleteGarbage(state, path);
}