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authorDan McGee <dan@archlinux.org>2011-07-16 10:07:25 -0500
committerDan McGee <dan@archlinux.org>2011-07-18 10:34:05 -0500
commit1c39e4fbade29d570858ca6eca4958ab72cfbdd0 (patch)
tree94778d2fed75db5d8bad3122779fdc1b95c18423 /HACKING
parent3a04267cdd0b1324c8153c813e9bc5726b005670 (diff)
downloadpacman-1c39e4fbade29d570858ca6eca4958ab72cfbdd0.tar.xz
Handle removal of empty directories properly
This addresses FS#25141. We shouldn't remove every empty directory we come across during the removal process unless it is truly not known to any other package. This will prevent removal of essential directories such as '/var/lock/'. This is accomplished by first checking the empty/non-empty status of a directory, which was previously done implicitly by calling rmdir() and ignoring errors. We do this to avoid the next (new) check in most cases, which is to look at all local packages to see if the to-be-removed directory is present in another packages' filelist. If we do not find it anywhere, then we remove it, else we keep the file around. The pactest has been updated to test more cases, as well as finding a flaw in the original expected to fail case- we need separate DIR and FILE based EXIST rules. Signed-off-by: Dan McGee <dan@archlinux.org>
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