[PATCH v2 07/15] cli: use the arg parser .present feature to handle show --entire-thread

[Jani Nikula]

The --entire-thread default depends on other arguments, so we'll have
to figure out if it was explicitly set by the user or not. The arg
parser .present feature helps us clean up the code here.
---
 notmuch-show.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/notmuch-show.c b/notmuch-show.c
index 367536ff9532..d0e86f412e80 100644
--- a/notmuch-show.c
+++ b/notmuch-show.c
@@ -1086,10 +1086,7 @@ notmuch_show_command (notmuch_config_t *config, int argc, char *argv[])
     };
     int format = NOTMUCH_FORMAT_NOT_SPECIFIED;
     int exclude = TRUE;
-
-    /* This value corresponds to neither true nor false being passed
-     * on the command line */
-    int entire_thread = -1;
+    notmuch_bool_t entire_thread_set = FALSE;
     notmuch_bool_t single_message;
 
     notmuch_opt_desc_t options[] = {
@@ -1102,7 +1099,8 @@ notmuch_show_command (notmuch_config_t *config, int argc, char *argv[])
 				  { 0, 0 } } },
 	{ .opt_int = &notmuch_format_version, .name = "format-version" },
 	{ .opt_bool = &exclude, .name = "exclude" },
-	{ .opt_bool = &entire_thread, .name = "entire-thread" },
+	{ .opt_bool = &params.entire_thread, .name = "entire-thread",
+	  .present = &entire_thread_set },
 	{ .opt_int = &params.part, .name = "part" },
 	{ .opt_bool = &params.crypto.decrypt, .name = "decrypt" },
 	{ .opt_bool = &params.crypto.verify, .name = "verify" },
@@ -1147,14 +1145,9 @@ notmuch_show_command (notmuch_config_t *config, int argc, char *argv[])
 
     /* Default is entire-thread = FALSE except for format=json and
      * format=sexp. */
-    if (entire_thread != FALSE && entire_thread != TRUE) {
-	if (format == NOTMUCH_FORMAT_JSON || format == NOTMUCH_FORMAT_SEXP)
-	    params.entire_thread = TRUE;
-	else
-	    params.entire_thread = FALSE;
-    } else {
-	params.entire_thread = entire_thread;
-    }
+    if (! entire_thread_set &&
+	(format == NOTMUCH_FORMAT_JSON || format == NOTMUCH_FORMAT_SEXP))
+	params.entire_thread = TRUE;
 
     if (!params.output_body) {
 	if (params.part > 0) {
-- 
2.11.0