Ensure android/avd/hw-config-defs.h is properly regenerated as needed.

This modifies the emulator's build system to ensure that the file at
android/avd/hw-config-defs.h is regenerated automatically each time that
android/avd/hardware-properties.ini is itself changed.

Tested with both the Android build system, and the standalone one.

1 files changed, 22 insertions, 11 deletions

diff --git a/android/tools/gen-hw-config.py b/android/tools/gen-hw-config.py
index 928ccc5..3822485 100755
--- a/android/tools/gen-hw-config.py
+++ b/android/tools/gen-hw-config.py
@@ -43,12 +43,17 @@ macroNames = typesToMacros.values()
 targetHeader = """\
 /* this file is automatically generated from 'hardware-properties.ini'
  * DO NOT EDIT IT. To re-generate it, use android/tools/gen-hw-config.py'
- */"""
+ */
+"""
 
 # locate source and target
 programDir = os.path.dirname(sys.argv[0])
-sourceFile = os.path.normpath(os.path.join(programDir,relativeSourcePath))
-targetFile = os.path.normpath(os.path.join(programDir,relativeTargetPath))
+if len(sys.argv) != 3:
+    print "Usage: %s source target\n" % os.path.basename(sys.argv[0])
+    sys.exit(1)
+
+sourceFile = sys.argv[1]
+targetFile = sys.argv[2]
 
 # parse the source file and record items
 # I would love to use Python's ConfigParser, but it doesn't
@@ -94,16 +99,21 @@ for line in open(sourceFile):
 if lastItem:
     items.append(lastItem)
 
+if targetFile == '--':
+    out = sys.stdout
+else:
+    out = open(targetFile,"wb")
 
-print  targetHeader
+out.write(targetHeader)
 
 # write guards to prevent bad compiles
 for m in macroNames:
-    print """\
+    out.write("""\
 #ifndef %(macro)s
 #error  %(macro)s not defined
-#endif""" % { 'macro':m }
-print ""
+#endif
+""" % { 'macro':m })
+out.write("\n")
 
 for item in items:
     if item.type == None:
@@ -131,11 +141,12 @@ for item in items:
         # quote default value for strings
         varDefault = quoteStringForC(varDefault)
 
-    print "%s(\n  %s,\n  %s,\n  %s,\n  %s,\n  %s)\n" % \
-            (varMacro,varName,varNameStr,varDefault,varAbstract,varDesc)
+    out.write("%s(\n  %s,\n  %s,\n  %s,\n  %s,\n  %s)\n\n" % \
+            (varMacro,varName,varNameStr,varDefault,varAbstract,varDesc))
 
 
 for m in macroNames:
-    print "#undef %s" % m
+    out.write("#undef %s\n" % m)
 
-print "/* end of auto-generated file */"
+out.write("/* end of auto-generated file */\n")
+out.close()