Add json generator script and makefile target

Makefile

@@ -110,6 +110,14 @@ dist: $(OBJS) README.html
 	VERSION=$(VERSION) scripts/makepkgs freedm $(FREEDM) $(DISTDOCS)
 	VERSION=$(VERSION) scripts/makepkgs freedoom $(FREEDOOM1) $(FREEDOOM2) $(DISTDOCS)
 
+json: $(OBJS)
+ifndef JSON
+	@echo "Define JSON as the file to output." >&2
+	@exit 1
+else
+	JSON=$(JSON) VERSION=$(VERSION) scripts/makejson
+endif
+
 clean:
 	rm -f	*.html deutex.log $(OBJS) \
 		./wadinfo.txt ./wadinfo_phase1.txt \

scripts/makejson

@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+# Copyright (c) 2014
+# Contributors to the Freedoom project.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of the freedoom project nor the names of its
+#    contributors may be used to endorse or promote products derived from
+#    this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+# OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import hashlib
+import json
+import os
+import sys
+
+# This script is pretty hard-coded to assuming the three IWADs and
+# URLs present as of the Freedoom 0.9 release.  Not much can be done
+# about that, but it will have to be changed whenever the project
+# expands or switches web host.
+
+iwads = {
+    "freedm.wad": {
+        "description": "Deathmatch IWAD",
+        "name": "FreeDM"},
+    "freedoom1.wad": {
+        "description": "Ultimate Doom compatible IWAD",
+        "name": "Freedoom: Phase 1"},
+    "freedoom2.wad": {
+        "description": "Doom II compatible IWAD",
+        "name": "Freedoom: Phase 2"}}
+
+# Find the version to generate JSON for:
+
+version = os.getenv("VERSION")
+
+# Find the file to append objects to:
+
+json_file = os.getenv("JSON")
+
+if version is None:
+    sys.stderr.write("Version is not specified for release\n")
+    sys.exit(1)
+if version[0] is 'v':
+    # Strip the leading 'v' from versioning
+    version = version[1:]
+
+if json_file is None:
+    sys.stderr.write("JSON file not specified!\n")
+    sys.exit(1)
+
+with open("wads/freedoom1.wad", "rb") as f:
+    iwads["freedoom1.wad"]["md5"] = hashlib.md5(f.read()).hexdigest()
+
+with open("wads/freedoom2.wad", "rb") as f:
+    iwads["freedoom2.wad"]["md5"] = hashlib.md5(f.read()).hexdigest()
+
+with open("wads/freedm.wad", "rb") as f:
+    iwads["freedm.wad"]["md5"] = hashlib.md5(f.read()).hexdigest()
+
+iwads["freedoom1.wad"]["url"] = "https://github.com/freedoom/freedoom/releases/downloads/v" + version + "/freedoom-" + version + ".zip"
+iwads["freedoom1.wad"]["version"] = version
+iwads["freedoom2.wad"]["url"] = "https://github.com/freedoom/freedoom/releases/downloads/v" + version + "/freedoom-" + version + ".zip"
+iwads["freedoom2.wad"]["version"] = version
+iwads["freedm.wad"]["url"] = "https://github.com/freedoom/freedoom/releases/downloads/v" + version + "/freedm-" + version + ".zip"
+iwads["freedm.wad"]["version"] = version
+
+with open(json_file, "w") as f:
+    json.dump(iwads, f, indent=2, sort_keys=True)