Export compile commands

cmake/cmake_options_script.py

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+# Based on @berenm's pull request https://github.com/quarnster/SublimeClang/pull/135
+# Create the database with cmake with for example: cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON ..
+# or you could have set(CMAKE_EXPORT_COMPILE_COMMANDS ON) in your CMakeLists.txt
+# Usage within SublimeClang:
+#   "sublimeclang_options_script": "python ${home}/code/cmake_options_script.py ${project_path:build}/compile_commands.json",
+
+
+import re
+import os
+import os.path
+import pickle
+import sys
+import json
+
+compilation_database_pattern = re.compile('(?<=\s)-[DIOUWfgs][^=\s]+(?:=\\"[^"]+\\"|=[^"]\S+)?')
+
+def load_db(filename):
+    compilation_database = {}
+    with open(filename) as compilation_database_file:
+        compilation_database_entries = json.load(compilation_database_file)
+
+    total = len(compilation_database_entries)
+    entry = 0
+    for compilation_entry in compilation_database_entries:
+        entry = entry + 1
+        compilation_database[compilation_entry["file"]] = [ p.strip() for p in compilation_database_pattern.findall(compilation_entry["command"]) ]
+    return compilation_database
+
+scriptpath = os.path.dirname(os.path.abspath(sys.argv[1]))
+cache_file = "%s/cached_options.txt" % (scriptpath)
+
+db = None
+if os.access(cache_file, os.R_OK) == 0:
+    db = load_db(sys.argv[1])
+    f = open(cache_file, "wb")
+    pickle.dump(db, f)
+    f.close()
+else:
+    f = open(cache_file)
+    db = pickle.load(f)
+    f.close()
+
+if db and sys.argv[2] in db:
+    for option in db[sys.argv[2]]:
+        print option