t8001/t8002: blame: add tests of -L line numbers less than 1

diff --git a/git-submodule.sh b/git-submodule.sh
index c87515de10037a280dfed3b4751f8f60c4bcbea3..2979197087f2c6d97e2945008394d50c16a195a5 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -35,6 +35,7 @@ nofetch=
 update=
 prefix=
 custom_name=
+depth=
 
 # The function takes at most 2 arguments. The first argument is the
 # URL that navigates to the submodule origin repo. When relative, this URL
@@ -251,6 +252,7 @@ module_clone()
        name=$2
        url=$3
        reference="$4"
+       depth="$5"
        quiet=
        if test -n "$GIT_QUIET"
        then
@@ -273,7 +275,7 @@ module_clone()
                mkdir -p "$gitdir_base"
                (
                        clear_local_git_env
-                       git clone $quiet -n ${reference:+"$reference"} \
+                       git clone $quiet ${depth:+"$depth"} -n ${reference:+"$reference"} \
                                --separate-git-dir "$gitdir" "$url" "$sm_path"
                ) ||
                die "$(eval_gettext "Clone of '\$url' into submodule path '\$sm_path' failed")"
@@ -350,6 +352,14 @@ cmd_add()
                        custom_name=$2
                        shift
                        ;;
+               --depth)
+                       case "$2" in '') usage ;; esac
+                       depth="--depth=$2"
+                       shift
+                       ;;
+               --depth=*)
+                       depth=$1
+                       ;;
                --)
                        shift
                        break
@@ -459,7 +469,7 @@ Use -f if you really want to add it." >&2
                                echo "$(eval_gettext "Reactivating local git directory for submodule '\$sm_name'.")"
                        fi
                fi
-               module_clone "$sm_path" "$sm_name" "$realrepo" "$reference" || exit
+               module_clone "$sm_path" "$sm_name" "$realrepo" "$reference" "$depth" || exit
                (
                        clear_local_git_env
                        cd "$sm_path" &&
@@ -736,6 +746,14 @@ cmd_update()
                --checkout)
                        update="checkout"
                        ;;
+               --depth)
+                       case "$2" in '') usage ;; esac
+                       depth="--depth=$2"
+                       shift
+                       ;;
+               --depth=*)
+                       depth=$1
+                       ;;
                --)
                        shift
                        break
@@ -797,7 +815,7 @@ Maybe you want to use 'update --init'?")"
 
                if ! test -d "$sm_path"/.git -o -f "$sm_path"/.git
                then
-                       module_clone "$sm_path" "$name" "$url" "$reference" || exit
+                       module_clone "$sm_path" "$name" "$url" "$reference" "$depth" || exit
                        cloned_modules="$cloned_modules;$name"
                        subsha1=
                else