Add --progress and --dissociate to git submodule

index 24914963c..262547968 100755
@@ -465,7 +465,7 @@ cmd_update()
 			GIT_QUIET=1
 			;;
 		--progress)
-			progress="--progress"
+			progress=1
 			;;
 		-i|--init)
 			init=1

@@ -542,14 +542,14 @@ cmd_update()
 
 	{
 	git submodule--helper update-clone ${GIT_QUIET:+--quiet} \
-		${progress:+"$progress"} \
+		${progress:+"--progress"} \
 		${wt_prefix:+--prefix "$wt_prefix"} \
 		${prefix:+--recursive-prefix "$prefix"} \
 		${update:+--update "$update"} \
 		${reference:+"$reference"} \
 		${depth:+--depth "$depth"} \
-		${recommend_shallow:+"$recommend_shallow"} \
-		${jobs:+$jobs} \
+		$recommend_shallow \
+		$jobs \
 		"$@" || echo "#unmatched" $?
 	} | {
 	err=

index 71c5618e8..d1ebe32e8 100644
@@ -239,6 +239,13 @@ OPTIONS
 --quiet::
 	Only print error messages.
 
+--progress::
+	This option is only valid for add and update commands.
+	Progress status is reported on the standard error stream
+	by default when it is attached to a terminal, unless -q
+	is specified. This flag forces progress status even if the
+	standard error stream is not directed to a terminal.
+
 --all::
 	This option is only valid for the deinit command. Unregister all
 	submodules in the working tree.

index 262547968..39c241a1d 100755
@@ -117,6 +117,9 @@ cmd_add()
 		-q|--quiet)
 			GIT_QUIET=1
 			;;
+		--progress)
+			progress=1
+			;;
 		--reference)
 			case "$2" in '') usage ;; esac
 			reference_path=$2

@@ -255,7 +258,7 @@ or you are unsure what this means choose another name with the '--name' option."
 				eval_gettextln "Reactivating local git directory for submodule '\$sm_name'."
 			fi
 		fi
-		git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${depth:+"$depth"} || exit
+		git submodule--helper clone ${GIT_QUIET:+--quiet} ${progress:+"--progress"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${depth:+"$depth"} || exit
 		(
 			sanitize_submodule_env
 			cd "$sm_path" &&

index a39e69a3e..b5b4922ab 100755
@@ -126,6 +126,22 @@ test_expect_success 'submodule add' '
 	test_cmp empty untracked
 '
 
+test_create_repo parent &&
+test_commit -C parent one
+
+test_expect_success 'redirected submodule add does not show progress' '
+	git -C addtest submodule add "file://$submodurl/parent" submod-redirected \
+		2>err &&
+	! grep % err &&
+	test_i18ngrep ! "Checking connectivity" err
+'
+
+test_expect_success 'redirected submodule add --progress does show progress' '
+	git -C addtest submodule add --progress "file://$submodurl/parent" \
+		submod-redirected-progress 2>err && \
+	grep % err
+'
+
 test_expect_success 'submodule add to .gitignored path fails' '
 	(
 		cd addtest-ignore &&

index d1ebe32e8..a75b95043 100644
@@ -369,7 +369,15 @@ the submodule itself.
 	this option will be passed to the linkgit:git-clone[1] command.
 +
 *NOTE*: Do *not* use this option unless you have read the note
-for linkgit:git-clone[1]'s `--reference` and `--shared` options carefully.
+for linkgit:git-clone[1]'s `--reference`, `--shared`, and `--dissociate`
+options carefully.
+
+--dissociate::
+	This option is only valid for add and update commands.  These
+	commands sometimes need to clone a remote repository. In this case,
+	this option will be passed to the linkgit:git-clone[1] command.
++
+*NOTE*: see the NOTE for the `--reference` option.
 
 --recursive::
 	This option is only valid for foreach, update, status and sync commands.

index 39c241a1d..1fddc098f 100755
@@ -42,6 +42,7 @@ prefix=
 custom_name=
 depth=
 progress=
+dissociate=
 
 die_if_unmatched ()
 {

@@ -128,6 +129,9 @@ cmd_add()
 		--reference=*)
 			reference_path="${1#--reference=}"
 			;;
+		--dissociate)
+			dissociate=1
+			;;
 		--name)
 			case "$2" in '') usage ;; esac
 			custom_name=$2

@@ -258,7 +262,7 @@ or you are unsure what this means choose another name with the '--name' option."
 				eval_gettextln "Reactivating local git directory for submodule '\$sm_name'."
 			fi
 		fi
-		git submodule--helper clone ${GIT_QUIET:+--quiet} ${progress:+"--progress"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${depth:+"$depth"} || exit
+		git submodule--helper clone ${GIT_QUIET:+--quiet} ${progress:+"--progress"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${dissociate:+"--dissociate"} ${depth:+"$depth"} || exit
 		(
 			sanitize_submodule_env
 			cd "$sm_path" &&

@@ -493,6 +497,9 @@ cmd_update()
 		--reference=*)
 			reference="$1"
 			;;
+		--dissociate)
+			dissociate=1
+			;;
 		-m|--merge)
 			update="merge"
 			;;

@@ -550,6 +557,7 @@ cmd_update()
 		${prefix:+--recursive-prefix "$prefix"} \
 		${update:+--update "$update"} \
 		${reference:+"$reference"} \
+		${dissociate:+"--dissociate"} \
 		${depth:+--depth "$depth"} \
 		$recommend_shallow \
 		$jobs \

index e159fc503..82656747f 100755
@@ -59,6 +59,16 @@ test_expect_success 'submodule add --reference uses alternates' '
 	test_alternate_is_used super/.git/modules/sub/objects/info/alternates super/sub
 '
 
+test_expect_success 'submodule add --reference with --dissociate doesnt use alternates' '
+	(
+		cd super &&
+		git submodule add --reference ../B --dissociate "file://$base_dir/A" sub-dissociate &&
+		git commit -m B-super-added &&
+		git repack -ad
+	) &&
+	test_path_is_missing super/.git/modules/sub-dissociate/objects/info/alternates
+'
+
 test_expect_success 'that reference gets used with add' '
 	(
 		cd super/sub &&

@@ -82,6 +92,13 @@ test_expect_success 'updating superproject keeps alternates' '
 	test_alternate_is_used super-clone/.git/modules/sub/objects/info/alternates super-clone/sub
 '
 
+test_expect_success 'updating superproject with --dissociate doesnt keep alternates' '
+	test_when_finished "rm -rf super-clone" &&
+	git clone super super-clone &&
+	git -C super-clone submodule update --init --reference ../B --dissociate &&
+	test_path_is_missing super-clone/.git/modules/sub/objects/info/alternates
+'
+
 test_expect_success 'submodules use alternates when cloning a superproject' '
 	test_when_finished "rm -rf super-clone" &&
 	git clone --reference super --recursive super super-clone &&