intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 48 insertions, 0 deletions

diff --git a/build/scripts/preprocess.py b/build/scripts/preprocess.py
new file mode 100644
index 00000000000..4657bef732e
--- /dev/null
+++ b/build/scripts/preprocess.py
@@ -0,0 +1,48 @@
+import sys
+import os
+
+
+def load_file(p):
+    with open(p, 'r') as f:
+        return f.read()
+
+
+def step(base, data, hh):
+    def flt():
+        for l in data.split('\n'):
+            if l in hh:
+                pp = os.path.join(base, hh[l])
+
+                yield '\n\n' + load_file(pp) + '\n\n'
+
+                os.unlink(pp)
+            else:
+                yield l
+
+    return '\n'.join(flt())
+
+
+def subst_headers(path, headers):
+    hh = dict()
+
+    for h in headers:
+        hh['# include "' + h + '"'] = h
+
+    data = load_file(path)
+    prev = data
+
+    while True:
+        ret = step(os.path.dirname(path), prev, hh)
+
+        if ret == prev:
+            break
+
+        prev = ret
+
+    if data != prev:
+        with open(path, 'w') as f:
+            f.write(prev)
+
+
+if __name__ == '__main__':
+    subst_headers(sys.argv[1], ['stack.hh', 'position.hh', 'location.hh'])