patman: Add the concept of multiple projects

There are cases that we want to support different settings (or maybe
even different aliases) for different projects.  Add support for this
by:
* Adding detection for two big projects: U-Boot and Linux.
* Adding default settings for Linux (U-Boot is already good with the
  standard patman defaults).
* Extend the new "settings" feature in .patman to specify per-project
  settings.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/tools/patman/project.py b/tools/patman/project.py
new file mode 100644
index 0000000000..4f7b2b3ef9
--- /dev/null
+++ b/tools/patman/project.py
@@ -0,0 +1,43 @@
+# Copyright (c) 2012 The Chromium OS Authors.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+import os.path
+
+import gitutil
+
+def DetectProject():
+    """Autodetect the name of the current project.
+
+    This looks for signature files/directories that are unlikely to exist except
+    in the given project.
+
+    Returns:
+        The name of the project, like "linux" or "u-boot".  Returns "unknown"
+        if we can't detect the project.
+    """
+    top_level = gitutil.GetTopLevel()
+
+    if os.path.exists(os.path.join(top_level, "include", "u-boot")):
+        return "u-boot"
+    elif os.path.exists(os.path.join(top_level, "kernel")):
+        return "linux"
+
+    return "unknown"