Added a dep generating tool that should be multi-platform

Making thins easier in windows.

2 files changed, 69 insertions, 1 deletions

diff --git a/game/Makefile b/game/Makefile
index da7d699..325247f 100644
--- a/game/Makefile
+++ b/game/Makefile
@@ -1,7 +1,7 @@
 all:
 	mkdir -p ./generated ./bin ./build
 	make -C data
-	cd src && rm -f Makefile.deps && touch Makefile.deps && find . -name "*.c" | xargs -n1 sdcc -I../generated -I../../include -MM | sed -r 's/([^:]+):/..\/build\/\1:/' >> Makefile.deps
+	cd src && ../../tools/mkdeps.py -b ../build -I ../generated:../../include ./ Makefile.deps2
 	make -C src
 
 .PHONY: all clean
diff --git a/tools/mkdeps.py b/tools/mkdeps.py
new file mode 100755
index 0000000..241d22d
--- /dev/null
+++ b/tools/mkdeps.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+
+import subprocess
+import glob
+import os
+import sys
+import re
+from argparse import ArgumentParser
+
+__version__ = "0.1"
+
+
+def main():
+
+    FIX_RE = r"([^:]+:)"
+
+    parser = ArgumentParser(description="mkdeps for SDCC",
+                            epilog="Copyright (C) 2021 Juan J Martinez <jjm@usebox.net>",
+                            )
+
+    parser.add_argument(
+        "--version", action="version", version="%(prog)s " + __version__)
+
+    parser.add_argument("-b", "--build-dir", dest="build", default=None, type=str,
+                        help="Directory to build")
+    parser.add_argument("-I", "--include", dest="include", default=None, type=str,
+                        help="Include directory")
+    parser.add_argument("-v", "--verbose", dest="verbose", action="store_true",
+                        help="Enable verbose output")
+
+    parser.add_argument("dir", help="Directory to scan")
+    parser.add_argument("deps", help="Dependencies makefile")
+
+    args = parser.parse_args()
+
+    fix_path = args.dir if args.build is None else args.build
+    fix_path = r"%s\1" % (fix_path.rstrip(os.sep) + os.sep)
+    inc = ["-I%s" % d for d in args.include.split(":")]
+    cmd = ["sdcc", "-MM"] + inc
+    result = []
+    for d in glob.glob(os.path.join(args.dir, "*.c")):
+        if args.verbose:
+            print("running %r" % ' '.join(cmd + [d]))
+        out = subprocess.run(cmd + [d], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        if out.returncode:
+            sys.exit("Error: %s" % out.stderr)
+
+        result.append(re.sub(FIX_RE, fix_path, out.stdout.decode('utf-8')))
+
+    try:
+        old = open(args.deps, "rt").read()
+    except Exception:
+        if args.verbose:
+            print("%r not found, will generate" % args.deps)
+        old = None
+
+    new = ''.join(result)
+
+    if new != old:
+        with open(args.deps, "wt") as fd:
+            fd.write(new)
+    else:
+        print("%r didn't change, skipping" % args.deps)
+
+
+if __name__ == "__main__":
+    main()