[gnome-builder] allow build system to alter project file path

[Christian Hergert <chergert src gnome org>]

commit 93fcdc21b7b1a0548d443aa022713743fa2b83b7
Author: Christian Hergert <christian hergert me>
Date:   Fri Mar 20 03:00:29 2015 -0700

    allow build system to alter project file path

 libide/autotools/ide-autotools-build-system.c |    3 +++
 libide/autotools/ide-autotools-build-task.c   |    3 ++-
 libide/ide-build-system.c                     |   25 ++++++++++++++-----------
 libide/ide-build-system.h                     |    1 +
 libide/ide-context.c                          |   14 ++++++++------
 libide/ide-internal.h                         |    2 ++
 6 files changed, 30 insertions(+), 18 deletions(-)
---
diff --git a/libide/autotools/ide-autotools-build-system.c b/libide/autotools/ide-autotools-build-system.c
index 2643120..1625eb3 100644
--- a/libide/autotools/ide-autotools-build-system.c
+++ b/libide/autotools/ide-autotools-build-system.c
@@ -25,6 +25,7 @@
 #include "ide-device.h"
 #include "ide-device-manager.h"
 #include "ide-file.h"
+#include "ide-internal.h"
 #include "ide-makecache.h"
 
 typedef struct
@@ -651,6 +652,8 @@ discover_file_cb (GObject      *object,
       return;
     }
 
+  _ide_build_system_set_project_file (IDE_BUILD_SYSTEM (self), file);
+
   ide_autotools_build_system_parse_async (self,
                                           file,
                                           g_task_get_cancellable (task),
diff --git a/libide/autotools/ide-autotools-build-task.c b/libide/autotools/ide-autotools-build-task.c
index 0d722a3..21862ba 100644
--- a/libide/autotools/ide-autotools-build-task.c
+++ b/libide/autotools/ide-autotools-build-task.c
@@ -769,7 +769,8 @@ step_autogen (GTask                 *task,
       g_task_return_new_error (task,
                                G_IO_ERROR,
                                G_IO_ERROR_FAILED,
-                               _("autogen.sh is missing from project directory."));
+                               _("autogen.sh is missing from project directory (%s)."),
+                               state->project_path);
       return FALSE;
     }
 
diff --git a/libide/ide-build-system.c b/libide/ide-build-system.c
index ef70def..4aae341 100644
--- a/libide/ide-build-system.c
+++ b/libide/ide-build-system.c
@@ -87,6 +87,14 @@ ide_build_system_get_build_flags_finish (IdeBuildSystem  *self,
   return g_new0 (gchar*, 1);
 }
 
+/**
+ * ide_build_system_get_project_file:
+ * @self: (in): A #IdeBuildSystem.
+ *
+ * Gets the #IdeBuildSystem:project-file property.
+ *
+ * Returns: (transfer none): A #GFile.
+ */
 GFile *
 ide_build_system_get_project_file (IdeBuildSystem *system)
 {
@@ -97,22 +105,17 @@ ide_build_system_get_project_file (IdeBuildSystem *system)
   return priv->project_file;
 }
 
-static void
-ide_build_system_set_project_file (IdeBuildSystem *system,
-                                   GFile          *project_file)
+void
+_ide_build_system_set_project_file (IdeBuildSystem *system,
+                                    GFile          *project_file)
 {
   IdeBuildSystemPrivate *priv = ide_build_system_get_instance_private (system);
 
   g_return_if_fail (IDE_IS_BUILD_SYSTEM (system));
   g_return_if_fail (G_IS_FILE (project_file));
 
-  if (project_file != priv->project_file)
-    {
-      g_clear_object (&priv->project_file);
-      priv->project_file = g_object_ref (project_file);
-      g_object_notify_by_pspec (G_OBJECT (system),
-                                gParamSpecs [PROP_PROJECT_FILE]);
-    }
+  if (g_set_object (&priv->project_file, project_file))
+    g_object_notify_by_pspec (G_OBJECT (system), gParamSpecs [PROP_PROJECT_FILE]);
 }
 
 static void
@@ -156,7 +159,7 @@ ide_build_system_set_property (GObject      *object,
   switch (prop_id)
     {
     case PROP_PROJECT_FILE:
-      ide_build_system_set_project_file (self, g_value_get_object (value));
+      _ide_build_system_set_project_file (self, g_value_get_object (value));
       break;
 
     default:
diff --git a/libide/ide-build-system.h b/libide/ide-build-system.h
index 6b9ee58..3c2e47c 100644
--- a/libide/ide-build-system.h
+++ b/libide/ide-build-system.h
@@ -48,6 +48,7 @@ struct _IdeBuildSystemClass
                                          GError              **error);
 };
 
+GFile          *ide_build_system_get_project_file       (IdeBuildSystem       *self);
 void            ide_build_system_get_build_flags_async  (IdeBuildSystem       *self,
                                                          IdeFile              *file,
                                                          GCancellable         *cancellable,
diff --git a/libide/ide-context.c b/libide/ide-context.c
index f7f9692..38d4a95 100644
--- a/libide/ide-context.c
+++ b/libide/ide-context.c
@@ -338,12 +338,8 @@ ide_context_set_project_file (IdeContext *self,
 {
   g_return_if_fail (IDE_IS_CONTEXT (self));
 
-  if (project_file != self->project_file)
-    {
-      if (g_set_object (&self->project_file, project_file))
-        g_object_notify_by_pspec (G_OBJECT (self),
-                                  gParamSpecs [PROP_PROJECT_FILE]);
-    }
+  if (g_set_object (&self->project_file, project_file))
+    g_object_notify_by_pspec (G_OBJECT (self), gParamSpecs [PROP_PROJECT_FILE]);
 }
 
 /**
@@ -883,6 +879,7 @@ ide_context_init_build_system_cb (GObject      *object,
   g_autoptr(GTask) task = user_data;
   IdeContext *self;
   GError *error = NULL;
+  GFile *project_file;
 
   self = g_task_get_source_object (task);
 
@@ -894,6 +891,11 @@ ide_context_init_build_system_cb (GObject      *object,
 
   self->build_system = g_object_ref (build_system);
 
+  /* allow the build system to override the project file */
+  project_file = ide_build_system_get_project_file (self->build_system);
+  if (project_file != NULL)
+    ide_context_set_project_file (self, project_file);
+
   g_task_return_boolean (task, TRUE);
 }
 
diff --git a/libide/ide-internal.h b/libide/ide-internal.h
index 2c36419..404201e 100644
--- a/libide/ide-internal.h
+++ b/libide/ide-internal.h
@@ -53,6 +53,8 @@ IdeBackForwardItem *_ide_back_forward_list_find        (IdeBackForwardList    *s
 gboolean            _ide_buffer_get_loading            (IdeBuffer             *self);
 void                _ide_buffer_set_loading            (IdeBuffer             *self,
                                                         gboolean               loading);
+void                _ide_build_system_set_project_file (IdeBuildSystem        *self,
+                                                        GFile                 *project_file);
 void                _ide_diagnostic_add_range          (IdeDiagnostic         *self,
                                                         IdeSourceRange        *range);
 IdeDiagnostic      *_ide_diagnostic_new                (IdeDiagnosticSeverity  severity,