git-commit: add a --interactive option

The --interactive option behaves like "git commit", except that
"git add --interactive" is executed before committing.  It is
incompatible with -a and -i.

Signed-off-by: Paolo Bonzini  <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git-commit.txt

@@ -8,8 +8,9 @@ git-commit - Record changes to the repository
 SYNOPSIS
 --------
 [verse]
-'git-commit' [-a] [-s] [-v] [(-c | -C) <commit> | -F <file> | -m <msg> |
+'git-commit' [-a | --interactive] [-s] [-v]
-	    --amend] [--no-verify] [-e] [--author <author>]
+	   [(-c | -C) <commit> | -F <file> | -m <msg> | --amend]
+	   [--no-verify] [-e] [--author <author>]
 	   [--] [[-i | -o ]<file>...]
 
 DESCRIPTION
@@ -35,6 +36,10 @@ methods:
    before, and to automatically "rm" files that have been
    removed from the working tree, and perform the actual commit.
 
+5. by using the --interactive switch with the 'commit' command to decide one
+   by one which files should be part of the commit, before finalizing the
+   operation.  Currently, this is done by invoking `git-add --interactive`.
+
 The gitlink:git-status[1] command can be used to obtain a
 summary of what is included by any of the above for the next
 commit by giving the same set of parameters you would give to

git-commit.sh

@@ -3,7 +3,7 @@
 # Copyright (c) 2005 Linus Torvalds
 # Copyright (c) 2006 Junio C Hamano
 
-USAGE='[-a] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit> | --amend] [-u] [-e] [--author <author>] [[-i | -o] <path>...]'
+USAGE='[-a | --interactive] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit> | --amend] [-u] [-e] [--author <author>] [[-i | -o] <path>...]'
 SUBDIRECTORY_OK=Yes
 . git-sh-setup
 require_work_tree
@@ -71,6 +71,7 @@ trap '
 
 all=
 also=
+interactive=
 only=
 logfile=
 use_commit=
@@ -131,6 +132,11 @@ do
 		also=t
 		shift
 		;;
+	--int|--inte|--inter|--intera|--interac|--interact|--interacti|\
+	--interactiv|--interactive)
+		interactive=t
+		shift
+		;;
 	-o|--o|--on|--onl|--only)
 		only=t
 		shift
@@ -304,12 +310,14 @@ case "$#,$also,$only,$amend" in
 	;;
 esac
 unset only
-case "$all,$also,$#" in
+case "$all,$interactive,$also,$#" in
-t,t,*)
+*t,*t,*)
-	die "Cannot use -a and -i at the same time." ;;
+	die "Cannot use -a, --interactive or -i at the same time." ;;
 t,,[1-9]*)
 	die "Paths with -a does not make sense." ;;
-,t,0)
+,t,[1-9]*)
+	die "Paths with --interactive does not make sense." ;;
+,,t,0)
 	die "No paths with -i does not make sense." ;;
 esac
 
@@ -344,6 +352,9 @@ t,)
 	) || exit
 	;;
 ,)
+	if test "$interactive" = t; then
+		git add --interactive || exit
+	fi
 	case "$#" in
 	0)
 		;; # commit as-is