[PATCH 2/4] Teach bash about git-commit's options.

["Shawn O. Pearce" <spearce@spearce.org>]

Not only can we complete the long options for git-commit, but now we
can also complete author strings by looking up all prior author names
in all branches and offering them up as possible completions.  This
is similiar to the support used by the --author= option to git-log.

Unfortunately this changes names which use ' within their string.
It seems to be bash's fault here, the ' is being passed out by sed
but is getting removed during the completion generation.  Fortunately
' appears in only one name in git.git so the damage is likely to be
rather low.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 contrib/completion/git-completion.bash |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index e53f040..d4eb138 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -332,6 +332,32 @@ _git_cherry_pick ()
 	esac
 }
 
+_git_commit ()
+{
+	local cur="${COMP_WORDS[COMP_CWORD]}"
+	case "$cur" in
+	--author=*)
+		local IFS=$'\n'
+		cur="${cur##--author=}"
+		COMPREPLY=($(compgen -P \' -S \' \
+			-W "$(git log --pretty=raw --all \
+			| sed -n -e "/^author /{
+				s/^author //
+				s/>.*/>/
+				p
+			}")" -- "${cur##\'}"))
+		return
+		;;
+	--*)
+		COMPREPLY=($(compgen -W "
+			--all --author=\' --signoff --verify --no-verify
+			--edit --amend --include --only
+			" -- "$cur"))
+		return
+	esac
+	COMPREPLY=()
+}
+
 _git_diff ()
 {
 	__git_complete_file
@@ -720,6 +746,7 @@ _git ()
 	cat-file)    _git_cat_file ;;
 	checkout)    _git_checkout ;;
 	cherry-pick) _git_cherry_pick ;;
+	commit)      _git_commit ;;
 	diff)        _git_diff ;;
 	diff-tree)   _git_diff_tree ;;
 	fetch)       _git_fetch ;;
@@ -754,6 +781,7 @@ complete -o default            -F _git_branch git-branch
 complete -o default -o nospace -F _git_cat_file git-cat-file
 complete -o default            -F _git_checkout git-checkout
 complete -o default            -F _git_cherry_pick git-cherry-pick
+complete -o default            -F _git_commit git-commit
 complete -o default -o nospace -F _git_diff git-diff
 complete -o default            -F _git_diff_tree git-diff-tree
 complete -o default -o nospace -F _git_fetch git-fetch
-- 
1.4.4.1.ge3fb