development/git
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Cache the list of merge strategies and available commands during load.

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Since the user's git installation is not likely to grow a new command
or merge strategy in the lifespan of the current shell process we can
save time during completion operations by caching these lists during
sourcing of the completion support.

If the git executable is not available or we run into errors while
caching at load time then we defer these to runtime and generate
the list on the fly.  This might happen if the user doesn't put git
into their PATH until after the completion script gets sourced.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Shawn O. Pearce 2006-11-27 15:11:52 -05:00 committed by Junio C Hamano
parent ce1e39d29e
commit b51ec6bddb
1 changed files with 19 additions and 1 deletions
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20
contrib/completion/git-completion.bash
View file

@ -18,7 +18,13 @@
# 2) Added the following line to your .bashrc:
# source ~/.git-completion.sh
#
# 3) Consider changing your PS1 to also show the current branch:
# 3) You may want to make sure the git executable is available
# in your PATH before this script is sourced, as some caching
# is performed while the script loads. If git isn't found
# at source time then all lookups will be done on demand,
# which may be slightly slower.
#
# 4) Consider changing your PS1 to also show the current branch:
# PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
#
# The argument to __git_ps1 will be displayed only if you
@ -150,6 +156,10 @@ __git_remotes ()
__git_merge_strategies ()
{
if [ -n "$__git_merge_strategylist" ]; then
echo "$__git_merge_strategylist"
return
fi
sed -n "/^all_strategies='/{
s/^all_strategies='//
s/'//
@ -157,6 +167,8 @@ __git_merge_strategies ()
q
}" "$(git --exec-path)/git-merge"
}
__git_merge_strategylist=
__git_merge_strategylist="$(__git_merge_strategies 2>/dev/null)"
__git_complete_file ()
{
@ -214,6 +226,10 @@ __git_complete_revlist ()
__git_commands ()
{
if [ -n "$__git_commandlist" ]; then
echo "$__git_commandlist"
return
fi
local i IFS=" "$'\n'
for i in $(git help -a|egrep '^ ')
do
@ -263,6 +279,8 @@ __git_commands ()
esac
done
}
__git_commandlist=
__git_commandlist="$(__git_commands 2>/dev/null)"
__git_aliases ()
{