Make git-clone to take long double-dashed origin option (--origin)

git-clone currently take option '-o' to specify origin.  this patch
makes git-clone to take double-dashed option '--origin' and other
abbreviations in addtion to the current single-dashed option.

[jc: with minor fixups]

Signed-off-by: Yasushi SHOJI <yashi@atmark-techno.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/git-clone.sh b/git-clone.sh
index 6887321..0e8a57d 100755 (executable)
--- a/git-clone.sh
+++ b/git-clone.sh
@@ -9,7 +9,7 @@
 unset CDPATH
 
 usage() {
-       echo >&2 "Usage: $0 [--use-separate-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [-o <name>] [-n] <repo> [<dir>]"
+       echo >&2 "Usage: $0 [--use-separate-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [-n] <repo> [<dir>]"
        exit 1
 }
 
@@ -121,14 +121,15 @@ while
        *,-q|*,--quiet) quiet=-q ;;
        *,--use-separate-remote)
                use_separate_remote=t ;;
-       1,-o) usage;;
        1,--reference) usage ;;
        *,--reference)
                shift; reference="$1" ;;
        *,--reference=*)
                reference=`expr "$1" : '--reference=\(.*\)'` ;;
-       *,-o)
+       *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin)
                case "$2" in
+               '')
+                   usage ;;
                */*)
                    echo >&2 "'$2' is not suitable for an origin name"
                    exit 1
@@ -138,7 +139,7 @@ while
                    exit 1
                }
                test -z "$origin_override" || {
-                   echo >&2 "Do not give more than one -o options."
+                   echo >&2 "Do not give more than one --origin options."
                    exit 1
                }
                origin_override=yes
@@ -160,7 +161,7 @@ if test yes = "$bare"
 then
        if test yes = "$origin_override"
        then
-               echo >&2 '--bare and -o $origin options are incompatible.'
+               echo >&2 '--bare and --origin $origin options are incompatible.'
                exit 1
        fi
        if test t = "$use_separate_remote"