X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Fccanlint%2Ftests%2Fdepends_accurate.c;h=a0fe6f32a36976886ae80ef90f48bf80dfb9a887;hp=e13eb1168bcb28568ee6e0aea349d49e021885df;hb=c9d946d07ae9a270042bcfef2bccfa09de6bddd9;hpb=678cd10db6d6b81d97f3b98ea0a54657141632ad

diff --git a/tools/ccanlint/tests/depends_accurate.c b/tools/ccanlint/tests/depends_accurate.c
index e13eb116..a0fe6f32 100644
--- a/tools/ccanlint/tests/depends_accurate.c
+++ b/tools/ccanlint/tests/depends_accurate.c
@@ -1,8 +1,7 @@
 #include <tools/ccanlint/ccanlint.h>
 #include <tools/tools.h>
-#include <ccan/talloc/talloc.h>
 #include <ccan/str/str.h>
-#include <ccan/str_talloc/str_talloc.h>
+#include <ccan/take/take.h>
 #include <ccan/foreach/foreach.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -16,65 +15,129 @@
 #include <string.h>
 #include <ctype.h>
 
-static bool has_dep(struct manifest *m, const char *depname)
+static bool has_dep(struct manifest *m, char **deps, bool *used,
+		    const char *depname)
 {
-	struct manifest *i;
+	unsigned int i;
 
 	/* We can include ourselves, of course. */
-	if (streq(depname, m->basename))
+	if (streq(depname + strlen("ccan/"), m->modname))
 		return true;
 
-	list_for_each(&m->deps, i, list) {
-		if (streq(i->basename, depname))
+	for (i = 0; deps[i]; i++) {
+		if (streq(deps[i], depname)) {
+			used[i] = true;
 			return true;
+		}
 	}
 	return false;
 }
 
+static bool check_dep_includes(struct manifest *m,
+			       char **deps, bool *used,
+			       struct score *score,
+			       struct ccan_file *f)
+{
+	unsigned int i;
+	char **lines = get_ccan_file_lines(f);
+	struct line_info *li = get_ccan_line_info(f);
+	bool ok = true;
+
+	for (i = 0; lines[i]; i++) {
+		char *mod;
+		if (!tal_strreg(f, lines[i],
+				"^[ \t]*#[ \t]*include[ \t]*[<\"]"
+				"(ccan/+.+)/+[^/]+\\.h", &mod))
+			continue;
+
+		if (has_dep(m, deps, used, mod))
+			continue;
+
+		/* FIXME: we can't be sure about conditional includes,
+		 * so don't complain (handle common case of idempotent wrap) */
+		if (!li[i].cond || li[i].cond == f->idempotent_cond) {
+			score_file_error(score, f, i+1,
+					 "%s not listed in _info", mod);
+			ok = false;
+		}
+	}
+	return ok;
+}
+
 static void check_depends_accurate(struct manifest *m,
-				   bool keep,
 				   unsigned int *timeleft, struct score *score)
 {
 	struct list_head *list;
+	unsigned int i, core_deps, test_deps;
+	char **deps, **tdeps;
+	bool *used;
+	bool ok = true;
+
+	/* Get the *direct* dependencies. */
+	if (safe_mode) {
+		deps = get_safe_ccan_deps(m, m->dir, "depends", false);
+		tdeps = get_safe_ccan_deps(m, m->dir, "testdepends", false);
+	} else {
+		deps = get_deps(m, m->dir, "depends", false,
+				get_or_compile_info);
+		tdeps = get_deps(m, m->dir, "testdepends", false,
+				 get_or_compile_info);
+	}
+
+	core_deps = tal_count(deps) - 1;
+	test_deps = tal_count(tdeps) - 1;
 
-	/* FIXME: This isn't reliable enough with #ifdefs, so we don't fail. */
-	score->pass = true;
+	used = tal_arrz(m, bool, core_deps + test_deps + 1);
 
-	foreach_ptr(list, &m->c_files, &m->h_files,
-		    &m->run_tests, &m->api_tests,
+	foreach_ptr(list, &m->c_files, &m->h_files) {
+		struct ccan_file *f;
+
+		list_for_each(list, f, list)
+			ok &= check_dep_includes(m, deps, used, score, f);
+	}
+
+	for (i = 0; i < core_deps; i++) {
+		if (!used[i] && strstarts(deps[i], "ccan/"))
+			score_file_error(score, m->info_file, 0,
+					 "%s is an unused dependency",
+					 deps[i]);
+	}
+
+	/* Now remove NUL and append test dependencies to deps. */
+	deps = tal_dup(m, char *, take(deps), core_deps, test_deps + 2);
+	memcpy(deps + core_deps, tdeps, sizeof(tdeps[0]) * test_deps);
+	/* ccan/tap is given a free pass. */
+	deps[core_deps + test_deps] = (char *)"ccan/tap";
+	deps[core_deps + test_deps + 1] = NULL;
+
+	foreach_ptr(list, &m->run_tests, &m->api_tests,
 		    &m->compile_ok_tests, &m->compile_fail_tests,
 		    &m->other_test_c_files) {
 		struct ccan_file *f;
 
-		list_for_each(list, f, list) {
-			unsigned int i;
-			char **lines = get_ccan_file_lines(f);
-
-			for (i = 0; lines[i]; i++) {
-				char *mod;
-				if (!strreg(f, lines[i],
-					    "^[ \t]*#[ \t]*include[ \t]*[<\"]"
-					    "ccan/+([^/]+)/", &mod))
-					continue;
-				if (has_dep(m, mod))
-					continue;
-				score_file_error(score, f, i+1,
-						 "%s not listed in _info",
-						 mod);
-			}
-		}
+		list_for_each(list, f, list)
+			ok &= check_dep_includes(m, deps, used, score, f);
 	}
 
-	if (!score->error) {
-		score->score = score->total;
+	for (i = core_deps; i < test_deps; i++) {
+		if (!used[i])
+			score_file_error(score, m->info_file, 0,
+					 "%s is an unused test dependency",
+					 deps[i]);
 	}
+
+	if (!score->error)
+		score->score = score->total;
+
+	/* We don't count unused dependencies as an error (yet!) */
+	score->pass = ok;
 }
 
 struct ccanlint depends_accurate = {
 	.key = "depends_accurate",
 	.name = "Module's CCAN dependencies are the only CCAN files #included",
 	.check = check_depends_accurate,
-	.needs = "depends_exist"
+	.needs = "depends_exist test_depends_exist headers_idempotent"
 };
 
 REGISTER_TEST(depends_accurate);