resolve build issue under windows with pre-build script

Author: rjwats

platformio.ini

@@ -12,6 +12,8 @@ platform = espressif8266
 board = esp12e
 board_build.f_cpu = 160000000L
 
+extra_scripts = pre:timelib_fix.py
+
 framework = arduino
 ;upload_flags = --port=8266 --auth=esp-react
 ;upload_port = 192.168.0.6

timelib_fix.py

@@ -0,0 +1,31 @@
+import os
+import sys
+import re
+Import("env")
+
+# Find files under 'root' of a given 'fileName' in directories matching 'subDirectoryPattern'
+# This will allow us to safely find the offending Time.h file for removal prior to building
+def findSubDirectoryFiles(root, subDirectoryPattern, fileName):
+    subDirectories = os.listdir(root)
+    subDirectories = filter(lambda d: re.match(subDirectoryPattern, d), subDirectories)  
+    result = []
+    for subDirectory in subDirectories:
+        candidateFile = os.path.join(root, subDirectory, fileName)
+        if os.path.isfile(candidateFile):
+            result.append(candidateFile)
+    return result
+
+# lib deps directory
+libDepsDir = os.path.join(env.subst('$PROJECT_DIR'), '.piolibdeps')
+timeHeaderFile = "Time.h"
+timeLibDirectoryPattern = "Time(_ID[0-9]+)?"
+
+# delete the file, as long as we only find one
+if os.path.isdir(libDepsDir) :
+    deletionCandidates = findSubDirectoryFiles(libDepsDir, timeLibDirectoryPattern, timeHeaderFile)
+    numDeletionCandidates = len(deletionCandidates)
+    if numDeletionCandidates == 1:
+        os.remove(deletionCandidates[0])
+    elif numDeletionCandidates > 1:        
+        os.write(2, 'Can\'t delete Time.h, more than one instance found:\n' + '\n'.join(deletionCandidates))
+        sys.exit(1)