On 18.04.2010, at 14:10, Sascha Silbe wrote: > > On Sat, Apr 17, 2010 at 09:26:23PM -0400, George Hunt wrote: > >> I am using an ipython console application which writes a history file to the >> home directory (I changed the HOME environment to SUGAR_ROOT/data). > Have you considered saving the history as part of the data store entry > instead? That way your activity wouldn't mix histories from separate sessions > (i.e. when debugging several different programs). > >> Rainbow changes UID for every invocation [...] > Yes, that's the default behaviour. Rainbow can be instructed to use a > constant UID (Browse does); according to the OLPC wiki [1] you'd need to add > a file activity/permissions.info, containing "constant-uid" on a single line. > This is the least preferable solution, though. > >> Apparently the create mask rainbow uses is 755 and group members do not have >> write access. > It's not Rainbow that decides this.
But arguably Rainbow could set a better default, no? Making files group-writable? Have to admit I forgot how the sticky bits on the data dir affects this though. > Permissions of newly created file system entries (i.e. files and directories) > are determined by the umask (see e.g. "man 2 umask"). You can either widen > the permissions after creation using chmod() (see "pydoc os.chmod") or tweak > the umask (see "pydoc os.umask"); since the latter affects _all_ created > files I would recommend the chmod() (you could save+restore the umask, but > it's prone to race conditions). When running in Rainbow, setting "umask 0002" shouldn't hurt in general. Hmm, how do I test if Rainbow is enabled, in a shell script, again? - Bert - > > [1] http://wiki.laptop.org/go/Activity_bundles#activity.2Fpermissions.info > > CU Sascha > > -- > http://sascha.silbe.org/ > http://www.infra-silbe.de/_______________________________________________ > Devel mailing list > Devel@lists.laptop.org > http://lists.laptop.org/listinfo/devel _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
