[Patch v2 4/4] cli: add standard option processing to config and setup

[David Bremner]

In particular this fixes a recently encountered bug where the
"--config" argument to "notmuch setup" is silently ignored, which the
unpleasant consequence of overwriting the users config file.
---
 notmuch-config.c     | 16 +++++++++++++++-
 notmuch-setup.c      | 12 ++++++++++++
 test/random-corpus.c |  9 +++++++++
 3 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/notmuch-config.c b/notmuch-config.c
index 2d5c297..f2cd6a8 100644
--- a/notmuch-config.c
+++ b/notmuch-config.c
@@ -872,8 +872,22 @@ int
 notmuch_config_command (notmuch_config_t *config, int argc, char *argv[])
 {
     int ret;
+    int opt_index;
 
-    argc--; argv++; /* skip subcommand argument */
+    notmuch_opt_desc_t options[] = {
+	{ NOTMUCH_OPT_INHERIT, (void *) &notmuch_shared_options, NULL, 0, 0 },
+	{ 0, 0, 0, 0, 0 }
+    };
+
+    opt_index = parse_arguments (argc, argv, options, 1);
+    if (opt_index < 0)
+	return EXIT_FAILURE;
+
+    notmuch_process_shared_options (argv[0]);
+
+    /* skip at least subcommand argument */
+    argc-= opt_index;
+    argv+= opt_index;
 
     if (argc < 1) {
 	fprintf (stderr, "Error: notmuch config requires at least one argument.\n");
diff --git a/notmuch-setup.c b/notmuch-setup.c
index 36a6171..6a020dc 100644
--- a/notmuch-setup.c
+++ b/notmuch-setup.c
@@ -133,6 +133,7 @@ notmuch_setup_command (notmuch_config_t *config,
     size_t new_tags_len;
     const char **search_exclude_tags;
     size_t search_exclude_tags_len;
+    int opt_index;
 
 #define prompt(format, ...)					\
     do {							\
@@ -145,6 +146,17 @@ notmuch_setup_command (notmuch_config_t *config,
 	chomp_newline (response);				\
     } while (0)
 
+    notmuch_opt_desc_t options[] = {
+	{ NOTMUCH_OPT_INHERIT, (void *) &notmuch_shared_options, NULL, 0, 0 },
+	{ 0, 0, 0, 0, 0 }
+    };
+
+    opt_index = parse_arguments (argc, argv, options, 1);
+    if (opt_index < 0)
+	return EXIT_FAILURE;
+
+    notmuch_process_shared_options ("setup");
+
     if (notmuch_config_is_new (config))
 	welcome_message_pre_setup ();
 
diff --git a/test/random-corpus.c b/test/random-corpus.c
index 790193d..6c467bb 100644
--- a/test/random-corpus.c
+++ b/test/random-corpus.c
@@ -114,6 +114,15 @@ random_utf8_string (void *ctx, size_t char_count)
     return buf;
 }
 
+/* stubs since we cannot link with notmuch.o */
+const notmuch_opt_desc_t notmuch_shared_options[] = {
+	{ 0, 0, 0, 0, 0 }
+};
+
+void
+notmuch_process_shared_options (unused (const char *dummy))
+{
+}
 
 int
 main (int argc, char **argv)
-- 
2.1.4