diff options
Diffstat (limited to 'pym/emergehelp.py')
| -rw-r--r-- | pym/emergehelp.py | 93 |
1 files changed, 62 insertions, 31 deletions
diff --git a/pym/emergehelp.py b/pym/emergehelp.py index a9acac607..cc2dc0bbb 100644 --- a/pym/emergehelp.py +++ b/pym/emergehelp.py @@ -1,4 +1,4 @@ -# Copyright 1999-2007 Gentoo Foundation +# Copyright 1999-2006 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Id$ @@ -7,7 +7,8 @@ import os,sys from output import bold, turquoise, green def shorthelp(): - print bold("emerge:")+" the other white meat (command-line interface to the Portage system)" + print + print print bold("Usage:") print " "+turquoise("emerge")+" [ "+green("options")+" ] [ "+green("action")+" ] [ "+turquoise("ebuildfile")+" | "+turquoise("tbz2file")+" | "+turquoise("dependency")+" ] [ ... ]" print " "+turquoise("emerge")+" [ "+green("options")+" ] [ "+green("action")+" ] < "+turquoise("system")+" | "+turquoise("world")+" >" @@ -16,15 +17,17 @@ def shorthelp(): print " "+turquoise("emerge")+" "+turquoise("--help")+" [ "+green("system")+" | "+green("world")+" | "+green("config")+" | "+green("--sync")+" ] " print bold("Options:")+" "+green("-")+"["+green("abBcCdDefgGhikKlnNoOpqPsStuvV")+"] ["+green("--oneshot")+"] ["+green("--newuse")+"] ["+green("--noconfmem")+"]" print " [ " + green("--color")+" < " + turquoise("y") + " | "+ turquoise("n")+" > ] [ "+green("--columns")+" ]" - print " [ "+green("--reinstall ")+turquoise("changed-use")+" ] ["+green("--nospinner")+"]" + print " ["+green("--nospinner")+"]" print " [ "+green("--deep")+" ] [" + green("--with-bdeps")+" < " + turquoise("y") + " | "+ turquoise("n")+" > ]" print bold("Actions:")+" [ "+green("--clean")+" | "+green("--depclean")+" | "+green("--prune")+" | "+green("--regen")+" | "+green("--search")+" | "+green("--unmerge")+" ]" + print def help(myaction,myopts,havecolor=1): - if not myaction and ("--verbose" not in myopts): + if not myaction and ("--help" not in myopts): shorthelp() print - print " For more help try 'emerge --help --verbose' or consult the man page." + print " For more help try 'emerge --help' or consult the man page." + print elif not myaction: shorthelp() print @@ -64,17 +67,10 @@ def help(myaction,myopts,havecolor=1): print " full dependency tree from the system list and the world file," print " then comparing it to installed packages. Packages installed, but" print " not associated with an explicit merge are listed as candidates" - print " for unmerging. Inexperienced users are advised to use --pretend" - print " with this option in order to see a preview of which packages will" - print " be uninstalled. "+turquoise(" WARNING: Removing some packages may cause") - print " "+turquoise("packages which link to the removed package to stop working and") - print " "+turquoise("complain about missing libraries. Rebuild the complaining package") - print " "+turquoise("to fix this issue.")+" Also see --with-bdeps for behavior with" - print " respect to build time dependencies that are not strictly" - print " required. Depclean serves as a dependency aware version of" - print " --unmerge. When given one or more atoms, it will unmerge matched" - print " packages that have no reverse dependencies. Use --depclean" - print " together with --verbose to show reverse dependencies." + print " for unmerging."+turquoise(" WARNING: This can seriously affect your system by") + print " "+turquoise("removing packages that may have been linked against, but due to") + print " "+turquoise("changes in USE flags may no longer be part of the dep tree. Use") + print " "+turquoise("caution when employing this feature.") print print " "+green("--info") print " Displays important portage variables that will be exported to" @@ -94,12 +90,11 @@ def help(myaction,myopts,havecolor=1): print print " "+green("--prune")+" ("+green("-P")+" short option)" print " "+turquoise("WARNING: This action can remove important packages!") - print " Removes all but the highest installed version of a package" + print " Removes all but the most recently installed version of a package" print " from your system. This action doesn't verify the possible binary" print " compatibility between versions and can thus remove essential" - print " dependencies from your system. Use --prune together with" - print " --verbose to show reverse dependencies or with --nodeps to" - print " ignore all dependencies." + print " dependencies from your system." + print " The argument format is the same as for the "+bold("--clean")+" action." print print " "+green("--regen") print " Causes portage to check and update the dependency cache of all" @@ -145,11 +140,9 @@ def help(myaction,myopts,havecolor=1): print print " "+green("--unmerge")+" ("+green("-C")+" short option)" print " "+turquoise("WARNING: This action can remove important packages!") - print " Removes all matching packages. This does no checking of" - print " dependencies, so it may remove packages necessary for the proper" - print " operation of your system. Its arguments can be atoms or" - print " ebuilds. For a dependency aware version of --unmerge, use" - print " --depclean or --prune." + print " Removes all matching packages "+bold("completely")+" from" + print " your system. Specify arguments using the dependency specification" + print " format described in the "+bold("--clean")+" action above." print print " "+green("--update")+" ("+green("-u")+" short option)" print " Updates packages to the best version available, which may not" @@ -303,12 +296,6 @@ def help(myaction,myopts,havecolor=1): print " Effects vary, but the general outcome is a reduced or condensed" print " output from portage's displays." print - print " "+green("--reinstall ") + turquoise("changed-use") - print " Tells emerge to include installed packages where USE flags have" - print " changed since installation. Unlike --newuse, this option does" - print " not trigger reinstallation when flags that the user has not" - print " enabled are added or removed." - print print " "+green("--skipfirst") print " This option is only valid in a resume situation. It removes the" print " first package in the resume list so that a merge may continue in" @@ -391,4 +378,48 @@ def help(myaction,myopts,havecolor=1): print " versions or newer ebuilds have become available since you last did a" print " sync and update." print + elif myaction=="config": + outstuff=green("Config file management support (preliminary)")+""" + +Portage has a special feature called "config file protection". The purpose of +this feature is to prevent new package installs from clobbering existing +configuration files. By default, config file protection is turned on for /etc +and the KDE configuration dirs; more may be added in the future. + +When Portage installs a file into a protected directory tree like /etc, any +existing files will not be overwritten. If a file of the same name already +exists, Portage will change the name of the to-be-installed file from 'foo' to +'._cfg0000_foo'. If '._cfg0000_foo' already exists, this name becomes +'._cfg0001_foo', etc. In this way, existing files are not overwritten, +allowing the administrator to manually merge the new config files and avoid any +unexpected changes. + +In addition to protecting overwritten files, Portage will not delete any files +from a protected directory when a package is unmerged. While this may be a +little bit untidy, it does prevent potentially valuable config files from being +deleted, which is of paramount importance. + +Protected directories are set using the CONFIG_PROTECT variable, normally +defined in /etc/make.globals. Directory exceptions to the CONFIG_PROTECTed +directories can be specified using the CONFIG_PROTECT_MASK variable. To find +files that need to be updated in /etc, type: + +# find /etc -iname '._cfg????_*' + +You can disable this feature by setting CONFIG_PROTECT="-*" in /etc/make.conf. +Then, Portage will mercilessly auto-update your config files. Alternatively, +you can leave Config File Protection on but tell Portage that it can overwrite +files in certain specific /etc subdirectories. For example, if you wanted +Portage to automatically update your rc scripts and your wget configuration, +but didn't want any other changes made without your explicit approval, you'd +add this to /etc/make.conf: + +CONFIG_PROTECT_MASK="/etc/wget /etc/rc.d" + +Tools such as dispatch-conf, cfg-update, and etc-update are also available to +aid in the merging of these files. They provide interactive merging and can +auto-merge trivial changes. + +""" + print outstuff |