chg: upgrade client to use "setumask2" command No compatibility code is added to the client side, since it's unlikely for new client to communicate with the old server.

chgserver: add "setumask2" command which uses correct message frame The first 4 bytes should be a length field, not a value. Spotted while porting chg functions to the Rust one.

packaging: "make deb" no longer fails Release 4.7 rationalized the layout of the build scripts. Unfortunately, while "make docker-ubuntu-*" and "make docker-debian-*" worked as expected, "make deb" was broken. Before this change "make deb" was failing with the following error: You are not inside a Mercurial repository! Or, after the latest changes: You are inside <fullpath>, which is not the root of a Mercurial repository Moreover, when "make deb" failed, the cleanup routine deleted the wrong directory (contrib/packaging/debian instead of <reporoot>/debian) resulting in a corrupted working copy that needed to be hg revert-ed. After this change the docker targets continue to work, and the deb one is able to finish.

packaging: cleanup() did not read the value of $CLEANUP When the original author put CLEANUP in a conditional statement he was probably willing to use it to control the "if". This change tries to restore that behaviour: the "rm" clause is triggered if and only if CLEANUP is defined and not empty.

packaging: builddeb's cleanup needs to expand PWD, safely Single quotes would not expand the variable.

packaging: blindly factor out trap's cleanup function in builddeb This commit blindly extracts builddeb's trap routine in a dedicated function. While doing so, I think two bugs are exposed, which will be addressed in the next commits: - single quoting around '$CLEANUP' will always evaluate to the literal '$CLEANUP' regardless of the variable's value. The "if" will always be true. - the removal operation will not expand $PWD (and a variable expansion would need double quotes, anyways.

packaging: print full path to the packages when builddeb finishes successfully