clone: use --progress to force progress reporting

Follow the argument convention of git-pack-objects, such that a
separate option (--preogress) is used to force progress reporting
instead of -v/--verbose.

-v/--verbose now does not force progress reporting. Make git-clone.txt
say so.

This should cover all the bases in 21188b1e (Implement git clone -v),
which implemented the option to force progress reporting.
Signed-off-by: NTay Ray Chuan <rctay89@gmail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Documentation/git-clone.txt

@@ -102,6 +102,9 @@ objects from the source repository into a pack in the cloned repository.
 
 --verbose::
 -v::
+	Run verbosely.
+
+--progress::
 	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

builtin-clone.c

@@ -44,10 +44,13 @@ static char *option_origin = NULL;
 static char *option_branch = NULL;
 static char *option_upload_pack = "git-upload-pack";
 static int option_verbose;
+static int option_progress;
 
 static struct option builtin_clone_options[] = {
 	OPT__QUIET(&option_quiet),
 	OPT__VERBOSE(&option_verbose),
+	OPT_BOOLEAN(0, "progress", &option_progress,
+			"force progress reporting"),
 	OPT_BOOLEAN('n', "no-checkout", &option_no_checkout,
 		    "don't create a checkout"),
 	OPT_BOOLEAN(0, "bare", &option_bare, "create a bare repository"),
@@ -524,10 +527,11 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
 		if (option_quiet)
 			transport->verbose = -1;
-		else if (option_verbose) {
+		else if (option_verbose)
 			transport->verbose = 1;
+
+		if (option_progress)
 			transport->progress = 1;
-		}
 
 		if (option_upload_pack)
 			transport_set_option(transport, TRANS_OPT_UPLOADPACK,

t/t5702-clone-options.sh

@@ -27,7 +27,8 @@ test_expect_success 'redirected clone' '
 '
 test_expect_success 'redirected clone -v' '
 
-	git clone -v "file://$(pwd)/parent" clone-redirected-v >out 2>err &&
+	git clone --progress "file://$(pwd)/parent" clone-redirected-progress \
+		>out 2>err &&
 	test -s err
 
 '