W dniu pią, 10.11.2017 o godzinie 19∶21 -0500, użytkownik Michael Orlitzky napisał: > On 11/10/2017 04:36 PM, Damo Brisbane wrote: > > > > Re for...keepdir, I found removing it then the /var/log/fabio folders > > were not getting created, so keeping it in there. > > You need to tell the ebuild to create that directory one way or another. > The "dodir" function will create the directory, but without the ".keep" > file inside of it. However that may be "illegal" in this case; see below. > > > > http://www.calculate-linux.org/main/en/using_ebuild, says this of *keepdir*: > > > > *Creates (if necessary) a |.keep| file in the given directory so that it > > isn't auto-cleaned. Never create a |.keep| file yourself. If Portage > > changes how |keepdir| works, then creating the file yourself will break > > the package.* > > To my knowledge, no package manager will remove a non-empty directory, > nor will it remove anything that the package manager did not itself > create. To me that raises a question: why would I ever want to keep > around an (otherwise empty) directory that was created by the package > manager? > > I found this, > > https://dev.gentoo.org/~ulm/pms/head/pms.html#x1-15100013.2.2 > > which states > > Behaviour upon encountering an empty directory is undefined. Ebuilds > must not attempt to install an empty directory. > > Certainly "keepdir" will make the directory non-empty, but with the > additional (unwanted) side-effect that the directory won't be removed > when the package is uninstalled. Thus "keepdir" doesn't seem like it was > intended to address that technicality. So, I have two questions now...
Wrong. It creates a dotfile inside it, and removes it along with it. > > a) When would you want to use keepdir? Because it works. > > b) What's the right way to prevent a directory from being empty? Touch > a dummy file? Use keepdir. > > and a meta-question, > > c) Seriously, empty directories are undefined behavior? ...and how could they be defined if a directory can be installed by multiple packages and has no explicit ownership? -- Best regards, Michał Górny
