ccanlint: print error information even if we pass.

This means we can see messages even if we don't fail; ie. for compiler warnings
once they are no longer fatal.

This means that various tests have to be more careful in not setting
score->error.

tools/ccanlint/ccanlint.c

@@ -149,7 +149,7 @@ static bool run_test(struct ccanlint *i,
 		printf("\n");
 	}
 
-	if (!quiet && !score->pass) {
+	if ((!quiet && !score->pass) || verbose) {
 		struct file_error *f;
 
 		if (score->error)
@@ -165,7 +165,7 @@ static bool run_test(struct ccanlint *i,
 			else
 				printf("%s\n", f->error);
 		}
-		if (i->handle)
+		if (!quiet && !score->pass && i->handle)
 			i->handle(m, score);
 	}
 

tools/ccanlint/ccanlint.h

@@ -192,7 +192,6 @@ char *get_symbol_token(void *ctx, const char **line);
 /* Similarly for ->doc_sections */
 struct list_head *get_ccan_file_docs(struct ccan_file *f);
 
-
 /* Add an error about this file (and line, if non-zero) to the score struct */
 void score_file_error(struct score *, struct ccan_file *f, unsigned line,
 		      const char *error);

tools/ccanlint/tests/has_examples.c

@@ -61,7 +61,7 @@ static void extract_examples(struct manifest *m,
 			     unsigned int *timeleft,
 			     struct score *score)
 {
-	struct ccan_file *f;
+	struct ccan_file *f, *mainh = NULL; /* gcc complains uninitialized */
 	struct doc_section *d;
 	bool have_info_example = false, have_header_example = false;
 
@@ -81,6 +81,7 @@ static void extract_examples(struct manifest *m,
 		    || strlen(f->name) != strlen(m->basename) + 2)
 			continue;
 
+		mainh = f;
 		list_for_each(get_ccan_file_docs(f), d, list) {
 			if (streq(d->type, "example")) {
 				score->error = add_example(m, f, keep, d);
@@ -91,23 +92,21 @@ static void extract_examples(struct manifest *m,
 		}
 	}
 
-	if (!have_info_example && !have_header_example) {
-		score->error = "You don't have any Example: sections";
-		score->score = 0;
-	} else if (!have_info_example) {
-		score->error = "You don't have an Example: section in _info";
-		score->score = 1;
-		score->pass = true;
-	} else if (!have_header_example) {
-		score->error = talloc_asprintf(score,
-			       "You don't have an Example: section in %s.h",
-			       m->basename);
-		score->score = 1;
-		score->pass = true;
-	} else {
+	if (have_info_example && have_header_example) {
 		score->score = score->total;
 		score->pass = true;
+		return;
 	}
+
+	score->error = "Expect examples in header and _info";
+	if (!have_info_example)
+		score_file_error(score, m->info_file, 0, "No Example: section");
+	if (!have_header_example)
+		score_file_error(score, mainh, 0, "No Example: section");
+
+	score->score = have_info_example + have_header_example;
+	/* We pass if we find any example. */
+	score->pass = score->score != 0;
 }
 
 struct ccanlint has_examples = {

tools/ccanlint/tests/idempotent.c

@@ -90,7 +90,6 @@ static bool check_idem(struct ccan_file *f, struct score *score)
 		/* FIXME: We assume small headers probably uninteresting. */
 		return true;
 
-	score->error = "Headers are not idempotent";
 	for (i = 0; i < f->num_lines; i++) {
 		if (line_info[i].type == DOC_LINE
 		    || line_info[i].type == COMMENT_LINE)
@@ -184,8 +183,10 @@ static void check_idempotent(struct manifest *m,
 	struct ccan_file *f;
 
 	list_for_each(&m->h_files, f, list) {
-		if (!check_idem(f, score))
+		if (!check_idem(f, score)) {
+			score->error = "Headers are not idempotent";
 			return;
+		}
 	}
 	score->pass = true;
 	score->score = score->total;