[PATCH 2/3] notmuch-dump: convert to notmuch-opts option-parsing.

[David Bremner]

This is actually a bit of a tricky case because of the treating of the
first non-option as a filename. On the other hand, we don't do any
"normal" argument parsing yet.
---
 notmuch-dump.c |   46 +++++++++++++++++++++++++++++++---------------
 1 files changed, 31 insertions(+), 15 deletions(-)

diff --git a/notmuch-dump.c b/notmuch-dump.c
index 0475eb9..8a8d6ec 100644
--- a/notmuch-dump.c
+++ b/notmuch-dump.c
@@ -19,6 +19,7 @@
  */
 
 #include "notmuch-client.h"
+#include "notmuch-opts.h"
 
 int
 notmuch_dump_command (unused (void *ctx), int argc, char *argv[])
@@ -41,27 +42,42 @@ notmuch_dump_command (unused (void *ctx), int argc, char *argv[])
     if (notmuch == NULL)
 	return 1;
 
-    argc--; argv++; /* skip subcommand argument */
+    notmuch_opt_desc_t options[] = {
+	{ 0, 0, 0, 0 }
+    };
 
-    if (argc && strcmp (argv[0], "--") != 0) {
-	fprintf (stderr, "Warning: the output file argument of dump is deprecated.\n");
-	output = fopen (argv[0], "w");
-	if (output == NULL) {
-	    fprintf (stderr, "Error opening %s for writing: %s\n",
-		     argv[0], strerror (errno));
+    notmuch_opt_t result;
+    int opt_index;
+    notmuch_bool_t more_args=TRUE;
+
+    for (opt_index = 1; more_args && opt_index < argc; opt_index++) {
+
+	more_args=parse_argument (argv[0], argv[opt_index], options, &result);
+
+	switch (result.arg_id) {
+	case '?':
 	    return 1;
+	    break;
+	case '*':
+	    fprintf (stderr, "Warning: the output file argument of dump is deprecated.\n");
+	    output = fopen (result.string, "w");
+	    if (output == NULL) {
+		fprintf (stderr, "Error opening %s for writing: %s\n",
+			 result.string, strerror (errno));
+		return 1;
+	    }
+	case '-':
+	    /* fall through */
+	    more_args=FALSE;
+	    break;
 	}
-	argc--;
-	argv++;
     }
 
-    if (argc && strcmp (argv[0], "--") == 0){
-	argc--;
-	argv++;
-    }
+    if (opt_index < argc && strcmp(argv[opt_index],"--") == 0)
+	opt_index++;
 
-    if (argc) {
-	query_str = query_string_from_args (notmuch, argc, argv);
+    if (opt_index < argc) {
+	query_str = query_string_from_args (notmuch, argc-opt_index, argv+opt_index);
 	if (query_str == NULL) {
 	    fprintf (stderr, "Out of memory.\n");
 	    return 1;
-- 
1.7.5.4