[PATCH v2 06/19] pull: pass verbosity, --progress flags to fetch and merge

[Paul Tan <pyokagan@gmail.com>]

7f87aff (Teach/Fix pull/fetch -q/-v options, 2008-11-15) taught git-pull
to accept the verbosity -v and -q options and pass them to git-fetch and
git-merge.

Re-implement support for the verbosity flags by adding it to the options
list and introducing argv_push_verbosity() to push the flags into the
argv array used to execute git-fetch and git-merge.

9839018 (fetch and pull: learn --progress, 2010-02-24) and bebd2fd
(pull: propagate --progress to merge, 2011-02-20) taught git-pull to
accept the --progress option and pass it to git-fetch and git-merge.

Re-implement support for this flag by introducing the option callback
handler parse_opt_passthru(). This callback is used to pass the
"--progress" or "--no-progress" command-line switch to git-fetch and
git-merge.

Signed-off-by: Paul Tan <pyokagan@gmail.com>
---

Notes:
    v2
    
    * Use parse_opt_pass_strbuf().

 builtin/pull.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/builtin/pull.c b/builtin/pull.c
index 0ca23a3..c9c2cc0 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -16,11 +16,35 @@ static const char * const pull_usage[] = {
 	NULL
 };
 
+/* Shared options */
+static int opt_verbosity;
+static struct strbuf opt_progress = STRBUF_INIT;
+
 static struct option pull_options[] = {
+	/* Shared options */
+	OPT__VERBOSITY(&opt_verbosity),
+	{ OPTION_CALLBACK, 0, "progress", &opt_progress, NULL,
+	  N_("force progress reporting"),
+	  PARSE_OPT_NOARG, parse_opt_pass_strbuf},
+
 	OPT_END()
 };
 
 /**
+ * Pushes "-q" or "-v" switches into arr to match the opt_verbosity level.
+ */
+static void argv_push_verbosity(struct argv_array *arr)
+{
+	int verbosity;
+
+	for (verbosity = opt_verbosity; verbosity > 0; verbosity--)
+		argv_array_push(arr, "-v");
+
+	for (verbosity = opt_verbosity; verbosity < 0; verbosity++)
+		argv_array_push(arr, "-q");
+}
+
+/**
  * Parses argv into [<repo> [<refspecs>...]], returning their values in `repo`
  * as a string and `refspecs` as a null-terminated array of strings. If `repo`
  * is not provided in argv, it is set to NULL.
@@ -46,6 +70,12 @@ static int run_fetch(const char *repo, const char **refspecs)
 	int ret;
 
 	argv_array_pushl(&args, "fetch", "--update-head-ok", NULL);
+
+	/* Shared options */
+	argv_push_verbosity(&args);
+	if (opt_progress.len)
+		argv_array_push(&args, opt_progress.buf);
+
 	if (repo)
 		argv_array_push(&args, repo);
 	while (*refspecs)
@@ -64,6 +94,12 @@ static int run_merge(void)
 	struct argv_array args = ARGV_ARRAY_INIT;
 
 	argv_array_pushl(&args, "merge", NULL);
+
+	/* Shared options */
+	argv_push_verbosity(&args);
+	if (opt_progress.len)
+		argv_array_push(&args, opt_progress.buf);
+
 	argv_array_push(&args, "FETCH_HEAD");
 	ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
 	argv_array_clear(&args);
-- 
2.1.4