From b83e7a311580e9c0ed7bd58637b01c10d4b4f8a3 Mon Sep 17 00:00:00 2001
From: Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
Date: Fri, 1 Apr 2016 16:23:27 +0200
Subject: cli: pass -p/--property assignment to constructor

---
 bin/tools/common.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 53 insertions(+), 1 deletion(-)

(limited to 'bin/tools/common.c')

diff --git a/bin/tools/common.c b/bin/tools/common.c
index 3721ff0..8de5e87 100644
--- a/bin/tools/common.c
+++ b/bin/tools/common.c
@@ -17,6 +17,7 @@
 
 #include "common.h"
 
+static gchar **uca_prop_assignment_array = NULL;
 
 static gchar *
 get_camera_list (UcaPluginManager *manager)
@@ -48,14 +49,65 @@ get_camera_list (UcaPluginManager *manager)
 }
 
 GOptionContext *
-uca_option_context_new (UcaPluginManager *manager)
+uca_common_context_new (UcaPluginManager *manager)
 {
     GOptionContext *context;
+    GOptionGroup *common;
     gchar *camera_list;
 
+    static GOptionEntry entries[] = {
+        { "prop", 'p', 0, G_OPTION_ARG_STRING_ARRAY, &uca_prop_assignment_array, "Property assignment via `name=value'", NULL },
+        { NULL }
+    };
+
     camera_list = get_camera_list (manager);
     context = g_option_context_new (camera_list);
     g_free (camera_list);
 
+    common = g_option_group_new ("properties", "Property options", "Show help for property assignment", NULL, NULL);
+    g_option_group_add_entries (common, entries);
+    g_option_context_add_group (context, common);
+
     return context;
 }
+
+UcaCamera *
+uca_common_get_camera (UcaPluginManager *manager, const gchar *name, GError **error)
+{
+    UcaCamera *camera;
+    GParameter *params;
+    guint n_props;
+
+    n_props = g_strv_length (uca_prop_assignment_array);
+    params = g_new0 (GParameter, n_props);
+
+    for (guint i = 0; i < n_props; i++) {
+        gchar **split;
+
+        split = g_strsplit (uca_prop_assignment_array[i], "=", 2);
+
+        if (g_strv_length (split) < 2)
+            goto cleanup;
+
+        params[i].name = g_strdup (split[0]);
+
+        /* We cannot check the type before instantiation, classic chicken-egg
+         * situation ... so, let's try string. */
+        g_value_init (&params[i].value, G_TYPE_STRING);
+        g_value_set_string (&params[i].value, split[1]);
+
+cleanup:
+        g_strfreev (split);
+    }
+
+    camera = uca_plugin_manager_get_camerav (manager, name, n_props, params, error);
+
+    for (guint i = 0; i < n_props; i++) {
+        /* cast is legit, because we created the string */
+        g_free ((gchar *) params[i].name);
+    }
+
+    g_free (params);
+
+    return camera;
+}
-- 
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