Re: [libvirt] [PATCH] maint: ignore unsaved emacs files

Eric Blake wrote: If you write ChangeLog entries in advance, vc-dwim may do precisely what you want: http://www.gnu.org/s/vc-dwim/ in that it cross-checks that what you say you're going add, change, or remove via ChangeLog with what the VC diffs say you're actually doing. It also checks for editor temporaries, which usually indicate your editor knows about a modified version that you have not yet "saved". Yep, that's how we install coreutils' custom log-checking local commit hook script. It sounds like you want a combination of that and the piece of vc-dwim that looks for editor temporaries. It uses the names of files that it's diffing or about to commit, and searches for the each corresponding editor temporary file name (emacs and vi*). If it finds a matching temporary file name, it complains. Here's the Perl function from vc-dwim.pl: # For emacs, the temporary is a symlink named "$dir/.#$base", # with useful information in the link name part. # For Vim, the temporary is a regular file named "$dir/.$base.swp". # Vim temporaries can also be named .$base.swo, .$base.swn, .$base.swm, etc. # so test for a few of those, in the unusual event that one of those # exists, but the .swp file does not. sub exists_editor_backup ($) { my ($f) = @_; # If $f is a symlink, use its referent. -l $f and $f = readlink $f; my $d = dirname $f; $f = basename $f; my @candidate_tmp = ( "$d/.#$f", "$d/#$f#", # Emacs map { "$d/.$f.sw$_" } qw (p o n m l k), # Vim ); foreach my $c (@candidate_tmp) { -l $c or -f _ and return $c; # Vim } return undef; }