Created attachment 443584 [details] Demo files Hi, sometimes when dispatch-conf merges config files the resulting file gets broken. I saw that first while working on bug 480018 where I implemented support for the config protection feature (i.e. instead of changing the real file I am creating a new "._cfgxxxx_filename" file which should be merge afterwards; see https://github.com/Whissi/lm-sensors/commit/769789e4eb2e6e61d60d598b7d501f12da5470dd#diff-5a2228f2da9369e14c66dcbacc8195c8R7252 for implementation details). While testing I noticed that sometimes "/etc/conf.d/modules" was destroyed after calling "dispatch-conf" after the file was already modified once, i.e. 1. You have a default "/etc/conf.d/modules" file 2. You run "sensors-detect" for the first time; The script will add something like > # BEGIN sys-apps/lm_sensors > # Generated by sensors-detect on Wed Aug 17 14:08:43 2016 > modules="$modules coretemp" > # END sys-apps/lm_sensors to your "/etc/conf.d/modules" file. 3. When you now re-run sensors-detect and tell the script to overwrite the previous modification i.e. replacing the previous added lines with > # BEGIN sys-apps/lm_sensors > # Generated by sensors-detect on Wed Aug 17 14:08:53 2016 > modules="$modules coretemp" > # END sys-apps/lm_sensors (because nothing changed on my system, only a new timestamp...) and call "dispatch-conf" the new "/etc/conf.d/modules" file will look like: > [...] > # You should consult your kernel documentation and configuration > # for a list of modules and their options. > > # BEGIN sys-apps/lm_sensors > n define a list modules for a specific kernel version, > # amodules="$modules coretemp" > # END sys-apps/lm_sensors I didn't reported this yet because I thought maybe this is related how Perl creates the file or something else. But now I hit the same problem after "emerge" modified "/etc/portage/package.use". See the attached archive which contains my original "/etc/portage/package.use" and "/etc/portage/._cfg0000_package.use" file with the changes emerge wants to apply. In tmp you can find a diff (which looks right) and a diff how "dispatch-conf" sees the merged file, which is already broken). My dispatch-conf.conf is also included.
I am not longer able to reproduce the problem with =sys-apps/diffutils-3.4-r1 (when I reported the issue I was using =sys-apps/diffutils-3.4). *** This bug has been marked as a duplicate of bug 591044 ***
