Merge branch 'rr/completion-branch-config'

Two-level configuration variable names in "branch.*" and "remote.*"
hierarchies whose variables are predominantly three-level where not
completed by hitting a <TAB> in bash and zsh completions.

* rr/completion-branch-config:
  completion: fix remote.pushdefault
  completion: fix branch.autosetup(merge|rebase)
  completion: introduce __gitcomp_nl_append ()
  zsh completion: find matching custom bash completion

Author: gitster

contrib/completion/git-completion.bash

@@ -178,16 +178,22 @@ _get_comp_words_by_ref ()
 }
 fi
 
-__gitcompadd ()
+__gitcompappend ()
 {
-	local i=0
+	local i=${#COMPREPLY[@]}
 	for x in $1; do
 		if [[ "$x" == "$3"* ]]; then
 			COMPREPLY[i++]="$2$x$4"
 		fi
 	done
 }
 
+__gitcompadd ()
+{
+	COMPREPLY=()
+	__gitcompappend "$@"
+}
+
 # Generates completion reply, appending a space to possible completion words,
 # if necessary.
 # It accepts 1 to 4 arguments:
@@ -218,6 +224,14 @@ __gitcomp ()
 	esac
 }
 
+# Variation of __gitcomp_nl () that appends to the existing list of
+# completion candidates, COMPREPLY.
+__gitcomp_nl_append ()
+{
+	local IFS=$'\n'
+	__gitcompappend "$1" "${2-}" "${3-$cur}" "${4- }"
+}
+
 # Generates completion reply from newline-separated possible completion words
 # by appending a space to all of them.
 # It accepts 1 to 4 arguments:
@@ -229,8 +243,8 @@ __gitcomp ()
 #    appended.
 __gitcomp_nl ()
 {
-	local IFS=$'\n'
-	__gitcompadd "$1" "${2-}" "${3-$cur}" "${4- }"
+	COMPREPLY=()
+	__gitcomp_nl_append "$@"
 }
 
 # Generates completion reply with compgen from newline-separated possible
@@ -1827,6 +1841,7 @@ _git_config ()
 	branch.*)
 		local pfx="${cur%.*}." cur_="${cur#*.}"
 		__gitcomp_nl "$(__git_heads)" "$pfx" "$cur_" "."
+		__gitcomp_nl_append $'autosetupmerge\nautosetuprebase\n' "$pfx" "$cur_"
 		return
 		;;
 	guitool.*.*)
@@ -1869,6 +1884,7 @@ _git_config ()
 	remote.*)
 		local pfx="${cur%.*}." cur_="${cur#*.}"
 		__gitcomp_nl "$(__git_remotes)" "$pfx" "$cur_" "."
+		__gitcomp_nl_append "pushdefault" "$pfx" "$cur_"
 		return
 		;;
 	url.*.*)

contrib/completion/git-completion.zsh

@@ -30,10 +30,10 @@ if [ -z "$script" ]; then
 	local -a locations
 	local e
 	locations=(
+		$(dirname ${funcsourcetrace[1]%:*})/git-completion.bash
 		'/etc/bash_completion.d/git' # fedora, old debian
 		'/usr/share/bash-completion/completions/git' # arch, ubuntu, new debian
 		'/usr/share/bash-completion/git' # gentoo
-		$(dirname ${funcsourcetrace[1]%:*})/git-completion.bash
 		)
 	for e in $locations; do
 		test -f $e && script="$e" && break
@@ -76,6 +76,14 @@ __gitcomp_nl ()
 	compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
 }
 
+__gitcomp_nl_append ()
+{
+	emulate -L zsh
+
+	local IFS=$'\n'
+	compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
+}
+
 __gitcomp_file ()
 {
 	emulate -L zsh