bundle-create: progress output control

Support the progress output options from pack-objects in git-bundle's
create subcommand. Most notably, this provides --quiet as requested on
the git mailing list per [1]

Reference: https://www.mail-archive.com/git@vger.kernel.org/msg182844.html <robbat2-20190806T191156-796782357Z@orbis-terrarum.net>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

4 files changed, 65 insertions, 10 deletions

diff --git a/Documentation/git-bundle.txt b/Documentation/git-bundle.txt
index 7d6c9dc..96bb94d 100644
--- a/Documentation/git-bundle.txt
+++ b/Documentation/git-bundle.txt
@@ -9,7 +9,7 @@ git-bundle - Move objects and refs by archive
 SYNOPSIS
 --------
 [verse]
-'git bundle' create <file> <git-rev-list-args>
+'git bundle' create [-q | --quiet | --progress | --all-progress] [--all-progress-implied] <file> <git-rev-list-args>
 'git bundle' verify <file>
 'git bundle' list-heads <file> [<refname>...]
 'git bundle' unbundle <file> [<refname>...]
@@ -33,9 +33,11 @@ destination repository.
 OPTIONS
 -------
 
-create <file>::
+create [options] <file> <git-rev-list-args>::
 	Used to create a bundle named 'file'.  This requires the
 	'git-rev-list-args' arguments to define the bundle contents.
+	'options' contains the options specific to the 'git bundle create'
+	subcommand.
 
 verify <file>::
 	Used to check that a bundle file is valid and will apply
@@ -75,6 +77,33 @@ unbundle <file>::
 	necessarily everything in the pack (in this case, 'git bundle' acts
 	like 'git fetch-pack').
 
+--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 standard error stream is not directed to a terminal.
+
+--all-progress::
+	When --stdout is specified then progress report is
+	displayed during the object count and compression phases
+	but inhibited during the write-out phase. The reason is
+	that in some cases the output stream is directly linked
+	to another command which may wish to display progress
+	status of its own as it processes incoming pack data.
+	This flag is like --progress except that it forces progress
+	report for the write-out phase as well even if --stdout is
+	used.
+
+--all-progress-implied::
+	This is used to imply --all-progress whenever progress display
+	is activated.  Unlike --all-progress this flag doesn't actually
+	force any progress display by itself.
+
+-q::
+--quiet::
+	This flag makes the command not to report its progress
+	on the standard error stream.
+
 SPECIFYING REFERENCES
 ---------------------
 
diff --git a/builtin/bundle.c b/builtin/bundle.c
index 09b989c..39b3e88 100644
--- a/builtin/bundle.c
+++ b/builtin/bundle.c
@@ -1,4 +1,5 @@
 #include "builtin.h"
+#include "argv-array.h"
 #include "parse-options.h"
 #include "cache.h"
 #include "bundle.h"
@@ -11,7 +12,7 @@
  */
 
 static const char * const builtin_bundle_usage[] = {
-  N_("git bundle create <file> <git-rev-list args>"),
+  N_("git bundle create [<options>] <file> <git-rev-list args>"),
   N_("git bundle verify <file>"),
   N_("git bundle list-heads <file> [<refname>...]"),
   N_("git bundle unbundle <file> [<refname>...]"),
@@ -19,7 +20,7 @@ static const char * const builtin_bundle_usage[] = {
 };
 
 static const char * const builtin_bundle_create_usage[] = {
-  N_("git bundle create <file> <git-rev-list args>"),
+  N_("git bundle create [<options>] <file> <git-rev-list args>"),
   NULL
 };
 
@@ -56,7 +57,20 @@ static int parse_options_cmd_bundle(int argc,
 }
 
 static int cmd_bundle_create(int argc, const char **argv, const char *prefix) {
+	int all_progress_implied = 0;
+	int progress = isatty(STDERR_FILENO);
+	struct argv_array pack_opts;
+
 	struct option options[] = {
+		OPT_SET_INT('q', "quiet", &progress,
+			    N_("do not show progress meter"), 0),
+		OPT_SET_INT(0, "progress", &progress,
+			    N_("show progress meter"), 1),
+		OPT_SET_INT(0, "all-progress", &progress,
+			    N_("show progress meter during object writing phase"), 2),
+		OPT_BOOL(0, "all-progress-implied",
+			 &all_progress_implied,
+			 N_("similar to --all-progress when progress meter is shown")),
 		OPT_END()
 	};
 	const char* bundle_file;
@@ -65,9 +79,19 @@ static int cmd_bundle_create(int argc, const char **argv, const char *prefix) {
 			builtin_bundle_create_usage, options, &bundle_file);
 	/* bundle internals use argv[1] as further parameters */
 
+	argv_array_init(&pack_opts);
+	if (progress == 0)
+		argv_array_push(&pack_opts, "--quiet");
+	else if (progress == 1)
+		argv_array_push(&pack_opts, "--progress");
+	else if (progress == 2)
+		argv_array_push(&pack_opts, "--all-progress");
+	if (progress && all_progress_implied)
+		argv_array_push(&pack_opts, "--all-progress-implied");
+
 	if (!startup_info->have_repository)
 		die(_("Need a repository to create a bundle."));
-	return !!create_bundle(the_repository, bundle_file, argc, argv);
+	return !!create_bundle(the_repository, bundle_file, argc, argv, &pack_opts);
 }
 
 static int cmd_bundle_verify(int argc, const char **argv, const char *prefix) {
diff --git a/bundle.c b/bundle.c
index a85ed3f..99439e0 100644
--- a/bundle.c
+++ b/bundle.c
@@ -249,15 +249,16 @@ out:
 
 
 /* Write the pack data to bundle_fd */
-static int write_pack_data(int bundle_fd, struct rev_info *revs)
+static int write_pack_data(int bundle_fd, struct rev_info *revs, struct argv_array *pack_options)
 {
 	struct child_process pack_objects = CHILD_PROCESS_INIT;
 	int i;
 
 	argv_array_pushl(&pack_objects.args,
-			 "pack-objects", "--all-progress-implied",
+			 "pack-objects",
 			 "--stdout", "--thin", "--delta-base-offset",
 			 NULL);
+	argv_array_pushv(&pack_objects.args, pack_options->argv);
 	pack_objects.in = -1;
 	pack_objects.out = bundle_fd;
 	pack_objects.git_cmd = 1;
@@ -428,7 +429,7 @@ static int write_bundle_refs(int bundle_fd, struct rev_info *revs)
 }
 
 int create_bundle(struct repository *r, const char *path,
-		  int argc, const char **argv)
+		  int argc, const char **argv, struct argv_array *pack_options)
 {
 	struct lock_file lock = LOCK_INIT;
 	int bundle_fd = -1;
@@ -470,7 +471,7 @@ int create_bundle(struct repository *r, const char *path,
 		goto err;
 
 	/* write pack */
-	if (write_pack_data(bundle_fd, &revs))
+	if (write_pack_data(bundle_fd, &revs, pack_options))
 		goto err;
 
 	if (!bundle_to_stdout) {
diff --git a/bundle.h b/bundle.h
index 37c37d7..ceab0c7 100644
--- a/bundle.h
+++ b/bundle.h
@@ -1,6 +1,7 @@
 #ifndef BUNDLE_H
 #define BUNDLE_H
 
+#include "argv-array.h"
 #include "cache.h"
 
 struct ref_list {
@@ -19,7 +20,7 @@ struct bundle_header {
 int is_bundle(const char *path, int quiet);
 int read_bundle_header(const char *path, struct bundle_header *header);
 int create_bundle(struct repository *r, const char *path,
-		  int argc, const char **argv);
+		  int argc, const char **argv, struct argv_array *pack_options);
 int verify_bundle(struct repository *r, struct bundle_header *header, int verbose);
 #define BUNDLE_VERBOSE 1
 int unbundle(struct repository *r, struct bundle_header *header,