Re: _git: Update __git_merge_strategies to work with new git.

[Clint Adams <clint@zsh.org>]

On Sun, Aug 24, 2008 at 09:16:13PM +0200, Mikael Magnusson wrote:
> The git-bundled bash completion doesn't exclude it at any rate.

The other issue is that the git merge -s '' trick doesn't work outside
of git directories.

So maybe this is the way to go.

Index: Completion/Unix/Command/_git
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Command/_git,v
retrieving revision 1.88
diff -u -r1.88 _git
--- Completion/Unix/Command/_git	21 Aug 2008 12:25:26 -0000	1.88
+++ Completion/Unix/Command/_git	24 Aug 2008 19:40:39 -0000
@@ -4039,12 +4039,14 @@
 
 (( $+functions[__git_merge_strategies] )) ||
 __git_merge_strategies () {
-  declare -a merge_strategies_cache
+  local expl
+  local -a merge_strategies
 
-  merge_strategies_cache=(${${=${${(M)${(f)"$(<$(git --exec-path)/git-merge)"}:#all_strategies*}##all_strategies=\'}%%\'}:#recur})
+  if ! merge_strategies=(${=${${(M)${(f)"$(_call_program strategies git merge -s '' 2>&1)"}:#[Aa]vailable (custom )#strategies are: *}#[Aa]vailable (custom )#strategies are: }%.}); then
+    merge_strategies=(${=${${(M)${(f)"$(<$(git --exec-path)/git-merge)"}:#all_strategies*}##all_strategies=\'}%%\'})
+  fi
 
-  local expl
-  _wanted merge-strategies expl 'merge strategy' compadd - $merge_strategies_cache
+  _wanted merge-strategies expl 'merge strategy' compadd -a merge_strategies "$@"
 }
 
 # TODO: Use this in more places.