Add new --needed option for -S.

During a pacman operation such as a group install, pacman can ask several
questions such as "local version is up to date. Upgrade anyway?". They are
usually all answered either by yes or by no:
* yes when you want to reinstall all the targets.
* no when you only want to install the missing ones (either because you are
installing a group, or because you are copying a pacman -S line from wiki or
whatever).

So instead of asking this question for each target, it is now now configured
with a flag.  Yes will be the default -S behavior, No will be achieved with
the --needed flag.

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/contrib/bash_completion b/contrib/bash_completion
index 844396d3..a96780dd 100644
--- a/contrib/bash_completion
+++ b/contrib/bash_completion
@@ -270,6 +270,7 @@ _pacman ()
           -u --sysupgrade \
           -w --downloadonly \
           -y --refresh \
+          --needed \
           --ignore \
           --config \
           --logfile \