[RFC/PATCH v4 5/6] completion: calculate argument position properly

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Positions are currently hard-coded, which means completions in the form
of 'git --foo bar' fail, because positions have been shifted.

This fixes the issue that was spotted in the mailing list regarding
certain aliases[1].

[1] http://thread.gmane.org/gmane.comp.version-control.git/185184

Cc: SZEDER Gábor <szeder@xxxxxxxxxx>
Cc: Scott Bronson <bronson@xxxxxxxxxxx>
Cc: Nathan Broadbent <nathan.f77@xxxxxxxxx>
Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
---
 contrib/completion/git-completion.bash |   16 +++++++++-------
 t/t9902-completion.sh                  |   21 +++++++++++++++++++++
 2 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index e648d7c..049110e 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -724,7 +724,8 @@ __git_complete_revlist ()
 __git_complete_remote_or_refspec ()
 {
 	local cur_="$cur"
-	local i c=2 remote="" pfx="" lhs=1 no_complete_refspec=0
+	local i c=$cmd_pos remote="" pfx="" lhs=1 no_complete_refspec=0
+
 	if [ "$cmd" = "remote" ]; then
 		((c++))
 	fi
@@ -1144,12 +1145,11 @@ _git_bundle ()
 {
 	local subcommands='create list-heads verify unbundle'
 	local subcommand="$(__git_find_on_cmdline "$subcommands")"
-
-	case "$cword" in
-	2)
+	case $(( cword - cmd_pos )) in
+	0)
 		__gitcomp "$subcommands"
 		;;
-	3)
+	1)
 		# looking for a file
 		;;
 	*)
@@ -1449,7 +1449,7 @@ _git_grep ()
 	esac
 
 	case "$cword,$prev" in
-	2,*|*,-*)
+	$cmd_pos,*|*,-*)
 		if test -r tags; then
 			__gitcomp_nl "$(__git_match_ctag "$cur" tags)"
 			return
@@ -2603,7 +2603,7 @@ _git_whatchanged ()
 
 _git ()
 {
-	local i c=1 cmd __git_dir
+	local i c=1 cmd cmd_pos __git_dir
 
 	while [ $c -lt $cword ]; do
 		i="${words[c]}"
@@ -2642,6 +2642,8 @@ _git ()
 		return
 	fi
 
+	(( cmd_pos = c + 1 ))
+
 	local completion_func="_git_${cmd//-/_}"
 	declare -f $completion_func >/dev/null && $completion_func && return
 
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index bb66848..6904594 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -295,4 +295,25 @@ test_expect_success 'other' '
 	test_completion "git tag -d v" "v0.1 "
 '
 
+test_expect_success 'global options extra checks' '
+	test_completion "git --no-pager fetch o" "origin " &&
+	test_completion "git --no-pager fetch origin m" "master:master " &&
+	test_completion "git --no-pager pull o" "origin " &&
+	test_completion "git --no-pager pull origin m" "master " &&
+	test_completion "git --no-pager push o" "origin " &&
+	test_completion "git --no-pager push origin m" "master " &&
+	test_completion "git --no-pager bisect st" "start " &&
+	test_completion "git --no-pager add -- foo" "" &&
+	test_completion "git --no-pager config --file=foo --get c" "color.ui " &&
+	cat >expected <<-\EOF &&
+	origin/HEAD 
+	origin/master 
+	EOF
+	test_completion "git --no-pager branch -r o" &&
+	test_completion "git --no-pager bundle cr" "create " &&
+	test_completion "git --no-pager grep f" "foobar " &&
+	test_completion "git --no-pager notes --ref m" "master " &&
+	test_completion "git --no-pager tag -d v" "v0.1 "
+'
+
 test_done
-- 
1.7.10

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