python dependency generation

bin/parse.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+import re
+import json
+import string
+import itertools
+
+def handle(fn):
+    with open(fn) as f:
+        scad_text = f.read()
+
+    poly_reqs = re.findall(r'<(.+\.gen\.scad)>', scad_text)
+
+    modules = re.findall(r"module\s+([^\s\(]+)\s*\("
+                         r".+"
+                         r"outlines_k\s*=\s*(\[[^\]]+\])"
+                         r".+"
+                         r"wardings_k\s*=\s*(\[[^\]]+\])"
+                         , scad_text, flags=re.S)
+
+    modules_parsed = [(n, json.loads(o), json.loads(w)) for (n, o, w) in modules]
+
+    def sanitize(s):
+        return "".join([c for c in s.lower() if c in string.ascii_lowercase + string.digits])
+
+    all_keys = [(n, o, w) for (n, os, ws) in modules_parsed for o in os for w in ws]
+
+    def stl_filename(n, o, w):
+        return "$(STL_DIR)/{n}_{o_s}_{w_s}.stl".format(n=n, o=o, w=w, o_s=sanitize(o), w_s=sanitize(w))
+
+    all_keys_makefile = ["{stl_fn}: {scad_fn} {deps}\n\t$(SCAD) $(SCADFLAGS) -D 'outline=\"{o}\"' -D 'warding=\"{w}\"' {scad_fn} -o $@"
+        .format(n=n, o=o, w=w,
+        scad_fn=fn, stl_fn=stl_filename(n, o, w), deps=" ".join(["$(POLY_DIR)/{}".format(r) for r in poly_reqs]))
+        for (n, o, w) in all_keys]
+    all_stl = [stl_filename(n, o, w) for (n, o, w) in all_keys]
+    all_keys_makefile.append("all_stl: {}".format(" \\\n ".join(all_stl)))
+
+    return all_keys, all_keys_makefile
+
+all_keys, all_keys_makefile = (list(itertools.chain.from_iterable(e)) for e in zip(*[handle(fn) for fn in sys.argv[1:]]))
+
+d = os.environ.get("BUILD_DIR", "")
+
+with open(os.path.join(d, "key_blanks.d"), "w") as f:
+    print("\n".join(all_keys_makefile), file=f)
+with open(os.path.join(d, "key_blanks.json"), "w") as f:
+    print(json.dumps(all_keys), file=f)