From: Michael Tremer <michael.tremer@ipfire.org>
Date: Thu, 8 Dec 2022 17:46:26 +0000 (+0000)
Subject: package: Add function to check whether a depenency matches
X-Git-Tag: 0.9.28~21
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f35eadaba923b6e0ba7dc5c0bfb25d22be443070;p=pakfire.git

package: Add function to check whether a depenency matches

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/include/pakfire/package.h b/src/libpakfire/include/pakfire/package.h
index eb6857b34..993bf9dd3 100644
--- a/src/libpakfire/include/pakfire/package.h
+++ b/src/libpakfire/include/pakfire/package.h
@@ -154,6 +154,8 @@ int pakfire_package_add_dep(struct pakfire_package* pkg,
 	const enum pakfire_package_key key, const char* dep);
 
 int pakfire_package_has_rich_deps(struct pakfire_package* pkg);
+int pakfire_package_matches_dep(struct pakfire_package* pkg,
+	const enum pakfire_package_key key, const char* dep);
 
 struct json_object* pakfire_package_to_json(struct pakfire_package* pkg);
 
diff --git a/src/libpakfire/package.c b/src/libpakfire/package.c
index d7d85bb11..f3ffa55ea 100644
--- a/src/libpakfire/package.c
+++ b/src/libpakfire/package.c
@@ -1090,6 +1090,30 @@ int pakfire_package_has_rich_deps(struct pakfire_package* pkg) {
 	return 0;
 }
 
+int pakfire_package_matches_dep(struct pakfire_package* pkg,
+		const enum pakfire_package_key key, const char* dep) {
+	int r;
+
+	Id id = ID_NULL;
+	int marker = 0;
+
+	// Translate the dependency type
+	r = pakfire_package_dep2id(key, &id, &marker);
+	if (r)
+		return r;
+
+	// Get the dependency
+	Id depid = pakfire_str2dep(pkg->pakfire, dep);
+	if (!depid)
+		return 0;
+
+	// Fetch the solvable
+	Solvable* s = get_solvable(pkg);
+
+	// Check whether this solvable matches the requested dependency
+	return solvable_matchesdep(s, id, depid, marker) == 0;
+}
+
 PAKFIRE_EXPORT struct pakfire_repo* pakfire_package_get_repo(struct pakfire_package* pkg) {
 	if (!pkg->repo) {
 		Solvable* s = get_solvable(pkg);
diff --git a/tests/libpakfire/dependencies.c b/tests/libpakfire/dependencies.c
index bd1cc534b..d46f27c2d 100644
--- a/tests/libpakfire/dependencies.c
+++ b/tests/libpakfire/dependencies.c
@@ -169,8 +169,47 @@ FAIL:
 	return EXIT_FAILURE;
 }
 
+static int test_dep_match(const struct test* t) {
+	struct pakfire_package* pkg = NULL;
+	int r = EXIT_FAILURE;
+
+	ASSERT_SUCCESS(pakfire_package_create(&pkg, t->pakfire, NULL,
+		"test", "1.0-1", "x86_64"));
+
+	// Check if the package matches itself
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "test") == 1);
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "test = 1.0-1") == 1);
+
+	// Add a couple of things this package provides
+	ASSERT_SUCCESS(pakfire_package_add_dep(pkg, PAKFIRE_PKG_PROVIDES, "a = 1"));
+	ASSERT_SUCCESS(pakfire_package_add_dep(pkg, PAKFIRE_PKG_PROVIDES, "b"));
+
+	// Check if the package matches those dependencies
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "a") == 1);
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "a = 1") == 1);
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "a >= 1") == 1);
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "a <= 1") == 1);
+
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "b") == 1);
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "b = 1") == 1);
+
+	// Check for something that doesn't exist
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "c") == 0);
+	ASSERT_SUCCESS(pakfire_package_matches_dep(pkg, PAKFIRE_PKG_PROVIDES, "c = 2") == 0);
+
+	// Everything passed
+	r = EXIT_SUCCESS;
+
+FAIL:
+	if (pkg)
+		pakfire_package_unref(pkg);
+
+	return r;
+}
+
 int main(int argc, const char* argv[]) {
 	testsuite_add_test(test_dependencies);
+	testsuite_add_test(test_dep_match);
 
 	return testsuite_run(argc, argv);
 }