From ed8a690dbe738b3096f8d43bdbc627eb3f951523 Mon Sep 17 00:00:00 2001
From: Dominique Leuenberger <dimstar@opensuse.org>
Date: Tue, 6 Dec 2011 16:23:59 +0100
Subject: [PATCH] Bug 655672: g-ir-dep-scanner: Scan dependencies of a typelib
 and give  information.

This allows distributions to create automatic dependency tracking coming
from .typelib files.

The dependencies identified at this time are:
typelib - based dependencies
shared library - dependencies
---
 Makefile-tools.am     |   10 +++++-
 tools/g-ir-dep-tool.c |   78 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 87 insertions(+), 1 deletions(-)
 create mode 100644 tools/g-ir-dep-tool.c

diff --git a/Makefile-tools.am b/Makefile-tools.am
index f84de99..6bc4da4 100644
--- a/Makefile-tools.am
+++ b/Makefile-tools.am
@@ -1,5 +1,6 @@
 bin_PROGRAMS += g-ir-compiler g-ir-generate
 bin_SCRIPTS += g-ir-scanner g-ir-annotation-tool
+bin_PROGRAMS += g-ir-dep-tool
 
 if BUILD_DOCTOOL
 bin_SCRIPTS += g-ir-doc-tool
@@ -38,8 +39,15 @@ g_ir_generate_LDADD = \
 	libgirepository-1.0.la		\
 	$(GIREPO_LIBS)
 
+g_ir_dep_tool_SOURCES = tools/g-ir-dep-tool.c
+g_ir_dep_tool_CFLAGS = $(GIO_CFLAGS) -I$(top_srcdir)/girepository
+g_ir_dep_tool_LDADD = \
+        libgirepository-internals.la    \
+        libgirepository-1.0.la          \
+        $(GIREPO_LIBS)
+
 GCOVSOURCES =					\
 	$(g_ir_compiler_SOURCES)		\
 	$(g_ir_generate_SOURCES)
 
-CLEANFILES += g-ir-scanner g-ir-annotation-tool g-ir-doc-tool
+CLEANFILES += g-ir-scanner g-ir-annotation-tool g-ir-doc-tool g-ir-dep-tool
diff --git a/tools/g-ir-dep-tool.c b/tools/g-ir-dep-tool.c
new file mode 100644
index 0000000..800779b
--- /dev/null
+++ b/tools/g-ir-dep-tool.c
@@ -0,0 +1,78 @@
+
+/* -*- Mode: C; c-file-style: "gnu"; -*- */
+/* GObject introspection: typelib dependency scanner
+ *
+ * Copyright (C) 2011 Dominique Leuenberger
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <glib.h>
+#include <girepository.h>
+
+int main(int argc, char *argv[]) {
+	GError *err = NULL;
+	GITypelib *typelib;
+	gchar **deps;
+	const gchar *shlibs;
+	int i;
+	const char *namespace = argv[1];
+	const char *version = argv[2];
+
+	g_type_init();
+
+	if (argc < 2 || argc > 3) {
+		g_print ("Usage: %s <typelib> [<version>]\n\n", argv[0]);
+		g_print ("       typelib: The namespace of the typelib to inspect\n");
+		g_print ("       version: The version of the typelib to inspect\n");
+		return 1;
+	}
+
+	/* Try to load the typelib specified as parameter */
+	typelib = g_irepository_require (NULL, namespace, version, 0, &err);
+
+	if (!typelib) {
+		g_printerr ("ERROR: Failed to load typelib '%s'\n", namespace);
+		return 2;
+	}
+
+	/* Finding all the typelib based Requires */
+	deps = g_irepository_get_dependencies (NULL, namespace);
+	if (deps) {
+		for (i=0; deps[i]; i++) {
+			g_print ("typelib: %s\n", deps[i]);
+		}
+		g_strfreev (deps);
+	}
+
+	/* Finding the shared library we depend on (if any) */
+	shlibs = g_irepository_get_shared_library (NULL, namespace);
+
+	if (shlibs != NULL && shlibs[0] != '\0')
+	{
+		/* libs is a comma-separated list of libraries */
+		gchar **libs = g_strsplit (shlibs, ",", 0);
+
+		for (i = 0; libs[i]; i++)
+		{
+			g_print ("shlib: %s\n", libs[i]);
+		}
+	}
+
+	g_typelib_free (typelib);
+
+	return 0;
+}
-- 
1.7.7.3