apt-conf-sisyphus-5.0-alt2 I suggest to manage the on/off status of mirrors in /etc/apt/sources.list.d/ with symlinks, as it is done in apache2-common-2.2.5-alt1: $ l /etc/httpd2/conf/mods-enabled/ total 1 drwxr-xr-x 2 root root 448 Ноя 29 22:04 ./ lrwxrwxrwx 1 root root 26 Ноя 29 22:04 cgi.load -> ../mods-available/cgi.load drwxr-xr-x 16 root root 592 Ноя 29 20:55 ../ lrwxrwxrwx 1 root root 31 Авг 23 2007 setenvif.conf -> ../mods-available/setenvif.conf lrwxrwxrwx 1 root root 31 Авг 23 2007 setenvif.load -> ../mods-available/setenvif.load lrwxrwxrwx 1 root root 28 Июл 14 2007 alias.load -> ../mods-available/alias.load lrwxrwxrwx 1 root root 33 Июл 14 2007 authz_host.load -> ../mods-available/authz_host.load lrwxrwxrwx 1 root root 32 Июл 14 2007 autoindex.load -> ../mods-available/autoindex.load lrwxrwxrwx 1 root root 26 Июл 14 2007 dir.load -> ../mods-available/dir.load lrwxrwxrwx 1 root root 30 Июл 14 2007 include.load -> ../mods-available/include.load lrwxrwxrwx 1 root root 33 Июл 14 2007 log_config.load -> ../mods-available/log_config.load lrwxrwxrwx 1 root root 28 Июл 14 2007 logio.load -> ../mods-available/logio.load lrwxrwxrwx 1 root root 27 Июл 14 2007 mime.conf -> ../mods-available/mime.conf lrwxrwxrwx 1 root root 27 Июл 14 2007 mime.load -> ../mods-available/mime.load lrwxrwxrwx 1 root root 34 Июл 14 2007 negotiation.load -> ../mods-available/negotiation.load $ l /etc/httpd2/conf/mods-available/ | head total 271 drwxr-xr-x 16 root root 592 Ноя 29 20:55 ../ drwxr-xr-x 2 root root 2200 Авг 23 2007 ./ -rw-r--r-- 1 root root 66 Авг 19 2007 actions.load -rw-r--r-- 1 root root 62 Авг 19 2007 alias.load -rw-r--r-- 1 root root 60 Авг 19 2007 asis.load -rw-r--r-- 1 root root 72 Авг 19 2007 auth_basic.load -rw-r--r-- 1 root root 74 Авг 19 2007 auth_digest.load -rw-r--r-- 1 root root 72 Авг 19 2007 authn_anon.load -rw-r--r-- 1 root root 70 Авг 19 2007 authn_dbd.load $ W.r.t. apt, that would mean that there is a /etc/apt/available-sources.list.d/ , which contains all the possible mirrors (uncommented), and the one that is actually used is pointed to by a symlink like: /etc/apt/sources.list.d/alt_ftp.list -> /etc/apt/available-sources.list.d/alt_ftp.list Doing symlinks is less distressing than commenting/uncommenting. Also, the symlink-approach can be extended to switch between branches independently of mirror sites. E.g., /etc/apt/sources.list.d/alt_ftp.list -> /etc/apt/available-sources.list.d/selected-branch/alt_ftp.list where /etc/apt/available-sources.list.d/selected-branch -> /etc/apt/available-sources.list.d/Sisyphus/
Even if the second part of the suggestion is not implemented (/etc/apt/available-sources.list.d/selected-branch -> /etc/apt/available-sources.list.d/Sisyphus/), then the suggested approach still gives an advantage of easy switching between branches: apt-conf-whatever contains all the possible URLs for the selected branch in /etc/apt/available-sources.list.d/* . You choose some of the sites by putting a symlink to /etc/apt/sources.list.d/ , say: /etc/apt/sources.list.d/alt_ftp.list -> /etc/apt/available-sources.list.d/alt_ftp.list . Then switching to another branch is as easy as installing another apt-conf-aBranch package: it will replace the contents of /etc/apt/available-sources.list.d/*, but your symlink /etc/apt/sources.list.d/alt_ftp.list will still be valid and working. (Compare this one action to the current process for switching to another branch: 1) install another apt-conf-aBranch; 2) merge the new files with your old uncommented ones (inconvenient!).)
I'd even prefer this second way of making the switching of branches easier, because it's simpler and clearer, than the initial suggestion of stacked symlinks. (In reply to comment #1) > . Then switching to another branch is as easy as installing another apt-conf-aBranch package: it will replace the contents of > /etc/apt/available-sources.list.d/*, but your symlink /etc/apt/sources.list.d/alt_ftp.list will still be valid and working.