From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 9 Nov 2021 18:38:20 +0000 (+0000)
Subject: packager: Add virtual requirement if using rich dependencies
X-Git-Tag: 0.9.28~880
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=555b6dd2bf05579d4e008307218ca6b697d852eb;p=pakfire.git

packager: Add virtual requirement if using rich dependencies

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 58857324d..6279e921d 100644
--- a/src/libpakfire/include/pakfire/package.h
+++ b/src/libpakfire/include/pakfire/package.h
@@ -147,6 +147,7 @@ void pakfire_package_add_recommends(struct pakfire_package* pkg, const char* dep
 void pakfire_package_add_suggests(struct pakfire_package* pkg, const char* dep);
 void pakfire_package_add_supplements(struct pakfire_package* pkg, const char* dep);
 void pakfire_package_add_enhances(struct pakfire_package* pkg, const char* dep);
+int pakfire_package_has_rich_deps(struct pakfire_package* pkg);
 
 #endif
 
diff --git a/src/libpakfire/package.c b/src/libpakfire/package.c
index 39554d3f4..738e98867 100644
--- a/src/libpakfire/package.c
+++ b/src/libpakfire/package.c
@@ -889,6 +889,62 @@ ERROR:
 	return r;
 }
 
+static int pakfire_package_has_rich_deps_in_deparray(
+		struct pakfire_package* pkg, Id type) {
+	int r = 0;
+
+	Solvable* s = get_solvable(pkg);
+
+	Queue q;
+	queue_init(&q);
+
+	// Fetch all deps
+	solvable_lookup_deparray(s, type, &q, 0);
+
+	// Nothing to do if the array was empty
+	if (!q.count)
+		goto ERROR;
+
+	for (int i = 0; i < q.count; i++) {
+		const char* dep = pakfire_dep2str(pkg->pakfire, q.elements[i]);
+
+		// Is this a rich dependency?
+		if (dep && *dep == '(') {
+			r = 1;
+			break;
+		}
+	}
+
+ERROR:
+	queue_free(&q);
+
+	return r;
+}
+
+int pakfire_package_has_rich_deps(struct pakfire_package* pkg) {
+	static const Id types[] = {
+		// Requires (includes pre-requires)
+		SOLVABLE_REQUIRES,
+		SOLVABLE_PROVIDES,
+		SOLVABLE_CONFLICTS,
+		SOLVABLE_OBSOLETES,
+		SOLVABLE_RECOMMENDS,
+		SOLVABLE_SUGGESTS,
+		SOLVABLE_SUPPLEMENTS,
+		SOLVABLE_ENHANCES,
+		0,
+	};
+
+	for (const Id* type = types; *type; type++) {
+		int r = pakfire_package_has_rich_deps_in_deparray(pkg, *type);
+		if (r)
+			return r;
+	}
+
+	// No match
+	return 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/src/libpakfire/packager.c b/src/libpakfire/packager.c
index 42657e796..4dbda9ecf 100644
--- a/src/libpakfire/packager.c
+++ b/src/libpakfire/packager.c
@@ -781,6 +781,10 @@ int pakfire_packager_finish(struct pakfire_packager* packager, FILE* f) {
 	FILE* fmtree = NULL;
 	int r = 1;
 
+	// Add requires feature markers
+	if (pakfire_package_has_rich_deps(packager->pkg))
+		pakfire_package_add_requires(packager->pkg, "pakfire(RichDependencies)");
+
 	// Store total install size
 	pakfire_package_set_installsize(packager->pkg, packager->installsize);
 
diff --git a/src/libpakfire/pakfire.c b/src/libpakfire/pakfire.c
index 5b0aebb68..49906a676 100644
--- a/src/libpakfire/pakfire.c
+++ b/src/libpakfire/pakfire.c
@@ -119,6 +119,8 @@ struct pakfire {
 static const struct pakfire_feature {
 	const char* name;
 } features[] = {
+	{ "RichDependencies" },
+
 	// Package Formats
 	{ "PackageFormat-6" },
 	{ "PackageFormat-5" },