From 3663dc3470038d3f21b6908ce905394beeeceff2 Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Thu, 15 Mar 2018 19:53:05 +0200
Subject: [PATCH] Fix issue with useless project rebuilding for case
 insensitive file systems (Windows)

---
 HISTORY.rst                |  6 ++++++
 platformio/commands/lib.py |  7 ++++---
 platformio/commands/run.py | 11 ++++++++---
 3 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/HISTORY.rst b/HISTORY.rst
index b672ab6c..0e57f504 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -4,6 +4,12 @@ Release Notes
 PlatformIO 3.0
 --------------
 
+3.5.3 (2018-??-??)
+~~~~~~~~~~~~~~~~~~
+
+* Fixed issue with useless project rebuilding for case insensitive file
+  systems (Windows)
+
 3.5.2 (2018-03-13)
 ~~~~~~~~~~~~~~~~~~
 
diff --git a/platformio/commands/lib.py b/platformio/commands/lib.py
index ee2ec01d..81400684 100644
--- a/platformio/commands/lib.py
+++ b/platformio/commands/lib.py
@@ -255,9 +255,10 @@ def lib_search(query, json_output, page, noninteractive, **filters):
         elif not click.confirm("Show next libraries?"):
             break
         result = get_api_result(
-            "/v2/lib/search",
-            {"query": " ".join(query),
-             "page": int(result['page']) + 1},
+            "/v2/lib/search", {
+                "query": " ".join(query),
+                "page": int(result['page']) + 1
+            },
             cache_valid="1d")
 
 
diff --git a/platformio/commands/run.py b/platformio/commands/run.py
index c0aab27f..aa7c9176 100644
--- a/platformio/commands/run.py
+++ b/platformio/commands/run.py
@@ -411,7 +411,7 @@ def check_project_envs(config, environments=None):
 
 def calculate_project_hash():
     check_suffixes = (".c", ".cc", ".cpp", ".h", ".hpp", ".s", ".S")
-    structure = [__version__]
+    chunks = [__version__]
     for d in (util.get_projectsrc_dir(), util.get_projectlib_dir()):
         if not isdir(d):
             continue
@@ -419,5 +419,10 @@ def calculate_project_hash():
             for f in files:
                 path = join(root, f)
                 if path.endswith(check_suffixes):
-                    structure.append(path)
-    return sha1(",".join(sorted(structure))).hexdigest()
+                    chunks.append(path)
+    chunks_to_str = ",".join(sorted(chunks))
+    if "windows" in util.get_systype():
+        # Fix issue with useless project rebuilding for case insensitive FS.
+        # A case of disk drive can differ...
+        chunks_to_str = chunks_to_str.lower()
+    return sha1(chunks_to_str).hexdigest()