From 1ae23085d4f23316e1d7eeb69f71ae92749aaa7a Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Thu, 29 Jan 2015 12:49:46 +0200
Subject: [PATCH] Allow to ignore some libs from "Library Dependency Finder"

---
 HISTORY.rst                |  2 ++
 docs/projectconf.rst       | 13 +++++++++++++
 platformio/builder/main.py |  5 ++++-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/HISTORY.rst b/HISTORY.rst
index 52dcf346..079af8c7 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -9,6 +9,8 @@ Release History
   command which allows to return the output in `JSON <http://en.wikipedia.org/wiki/JSON>`_ format
   (`issue #42 <https://github.com/ivankravets/platformio/issues/42>`_)
 * Fixed an issue with the libraries that are git repositories (`issue #49 <https://github.com/ivankravets/platformio/issues/49>`_)
+* Allowed to ignore some libs from "Library Dependency Finder" via
+  `ignore_libs <http://docs.platformio.org/en/latest/projectconf.html#ignore-libs`_ option
 
 
 0.10.2 (2015-01-06)
diff --git a/docs/projectconf.rst b/docs/projectconf.rst
index e7c416c6..848bf6e3 100644
--- a/docs/projectconf.rst
+++ b/docs/projectconf.rst
@@ -245,6 +245,19 @@ For more detailed information about available flags/options go to:
 This is option ``srcbuild_flags`` has the same behaviour like ``build_flags``
 but will be applied only for project source code from ``src`` directory.
 
+``ignore_libs``
+^^^^^^^^^^^^^^^
+
+Specify libraries which should be ignored by ``Library Dependency Finder``
+
+Example:
+
+.. code-block::   ini
+
+    [env:ignore_some_libs]
+    ignore_libs = SPI,EngduinoV3_ID123
+
+
 .. _projectconf_examples:
 
 Examples
diff --git a/platformio/builder/main.py b/platformio/builder/main.py
index a69a31d0..24a98e23 100644
--- a/platformio/builder/main.py
+++ b/platformio/builder/main.py
@@ -16,7 +16,6 @@ from os.path import join
 from SCons.Script import (DefaultEnvironment, SConscript, SConscriptChdir,
                           Variables)
 
-
 # AllowSubstExceptions()
 
 # allow common variables from INI file
@@ -35,6 +34,7 @@ commonvars.AddVariables(
     ("FRAMEWORK",),
     ("BUILD_FLAGS",),
     ("SRCBUILD_FLAGS",),
+    ("IGNORE_LIBS",),
 
     # board options
     ("BOARD",),
@@ -85,6 +85,9 @@ if "BOARD" in env:
     if "UPLOAD_SPEED" not in env:
         env.Replace(UPLOAD_SPEED="${BOARD_OPTIONS['upload']['speed']}")
 
+if "IGNORE_LIBS" in env:
+    env['IGNORE_LIBS'] = [l.strip() for l in env['IGNORE_LIBS'].split(",")]
+
 env.PrependENVPath(
     "PATH",
     env.subst(join("$PIOPACKAGES_DIR", "$PIOPACKAGE_TOOLCHAIN", "bin"))