[PATCH v3 5/7] add-interactive.c: implement show-help command

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From: Slavica Djukic <slawica92@xxxxxxxxxxx>

Implement show-help command in add-interactive.c and use it in
builtin add--helper.c.

Use command name "show-help" instead of "help": add--helper is
builtin, hence add--helper --help would be intercepted by
handle_builtin and re-routed to the help command, without ever
calling cmd_add__helper().

Signed-off-by: Slavica Djukic <slawica92@xxxxxxxxxxx>
---
 add-interactive.c     | 17 +++++++++++++++++
 add-interactive.h     |  4 +++-
 builtin/add--helper.c |  7 ++++++-
 3 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/add-interactive.c b/add-interactive.c
index c55d934186..d239037bc1 100644
--- a/add-interactive.c
+++ b/add-interactive.c
@@ -244,3 +244,20 @@ void add_i_print_modified(void)
 	free(files);
 	hashmap_free(&s.file_map, 1);
 }
+
+void add_i_show_help(void)
+{
+	const char *help_color = get_color(COLOR_HELP);
+	color_fprintf_ln(stdout, help_color, "status        - %s",
+			_("show paths with changes"));
+	color_fprintf_ln(stdout, help_color, "update        - %s",
+			_("add working tree state to the staged set of changes"));
+	color_fprintf_ln(stdout, help_color, "revert        - %s",
+			_("revert staged set of changes back to the HEAD version"));
+	color_fprintf_ln(stdout, help_color, "patch         - %s",
+			_("pick hunks and update selectively"));
+	color_fprintf_ln(stdout, help_color, "diff          - %s",
+			_("view diff between HEAD and index"));
+	color_fprintf_ln(stdout, help_color, "add untracked - %s",
+			_("add contents of untracked files to the staged set of changes"));
+}
diff --git a/add-interactive.h b/add-interactive.h
index 1f4747553c..46e17c5c71 100644
--- a/add-interactive.h
+++ b/add-interactive.h
@@ -5,4 +5,6 @@ int add_i_config(const char *var, const char *value, void *cbdata);
 
 void add_i_print_modified(void);
 
-#endif
\ No newline at end of file
+void add_i_show_help(void);
+
+#endif
diff --git a/builtin/add--helper.c b/builtin/add--helper.c
index 43545d9af5..a3b3a68b68 100644
--- a/builtin/add--helper.c
+++ b/builtin/add--helper.c
@@ -10,7 +10,8 @@ static const char * const builtin_add_helper_usage[] = {
 
 enum cmd_mode {
 	DEFAULT = 0,
-	STATUS
+	STATUS,
+	HELP
 };
 
 int cmd_add__helper(int argc, const char **argv, const char *prefix)
@@ -20,6 +21,8 @@ int cmd_add__helper(int argc, const char **argv, const char *prefix)
 	struct option options[] = {
 		OPT_CMDMODE(0, "status", &mode,
 			 N_("print status information with diffstat"), STATUS),
+		OPT_CMDMODE(0, "show-help", &mode,
+			 N_("show help"), HELP),
 		OPT_END()
 	};
 
@@ -30,6 +33,8 @@ int cmd_add__helper(int argc, const char **argv, const char *prefix)
 
 	if (mode == STATUS)
 		add_i_print_modified();
+	else if (mode == HELP)
+		add_i_show_help();
 	else
 		usage_with_options(builtin_add_helper_usage,
 				   options);
-- 
gitgitgadget




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