From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sat, 4 Jan 2025 13:56:19 +0000 (+0000)
Subject: build: Implement symlink dependencies
X-Git-Tag: 0.9.30~542
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1f9f8a543b3af12245171493026a11dd117940b;p=pakfire.git

build: Implement symlink dependencies

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

diff --git a/src/pakfire/build.c b/src/pakfire/build.c
index 798149aef..8a3c659b6 100644
--- a/src/pakfire/build.c
+++ b/src/pakfire/build.c
@@ -710,6 +710,36 @@ static int pakfire_build_find_python_abi_requires(
 		PAKFIRE_PKG_REQUIRES, "python-abi = %s", basename + strlen("python"));
 }
 
+static int pakfire_build_find_symlink_destinations(
+		struct pakfire_ctx* ctx, struct pakfire_file* file, struct pakfire_find_deps_ctx* deps) {
+	const char* symlink = NULL;
+	const char* path = NULL;
+	char buffer[PATH_MAX];
+	int r;
+
+	// Fetch the path
+	path = pakfire_file_get_path(file);
+	if (!path)
+		return -EINVAL;
+
+	// Fetch the destination
+	symlink = pakfire_file_get_symlink(file);
+	if (!symlink)
+		return -EINVAL;
+
+	// Resolve the symlink
+	r = pakfire_path_merge(buffer, path, symlink);
+	if (r < 0)
+		return r;
+
+	// Ignore if the destination is also part of this package
+	if (pakfire_filelist_contains(deps->filelist, buffer))
+		return 0;
+
+	// Otherwise add it as dependency
+	return pakfire_package_add_dep(deps->pkg, PAKFIRE_PKG_REQUIRES, "%s", buffer);
+}
+
 static int pakfire_build_find_provides(
 		struct pakfire_ctx* ctx, struct pakfire_file* file, void* data) {
 	struct pakfire_find_deps_ctx* deps = data;
@@ -776,7 +806,13 @@ static int pakfire_build_find_requires(
 				if (r < 0)
 					return r;
 			}
+			break;
 
+		// Symlinks
+		case S_IFLNK:
+			r = pakfire_build_find_symlink_destinations(ctx, file, deps);
+			if (r < 0)
+				return r;
 			break;
 	}
 
@@ -834,8 +870,9 @@ static int pakfire_build_find_dependencies(struct pakfire_build* build,
 	int r;
 
 	struct pakfire_find_deps_ctx deps = {
-		.build = build,
-		.pkg   = pkg,
+		.build    = build,
+		.pkg      = pkg,
+		.filelist = filelist,
 	};
 
 	// Fetch the provides filter