#!/usr/bin/env python """ Report about the differences in two metadata files. The script is incomplete at the moment: it doesn't look inside nested elements yet (function, class, informal_protocol). """ from PyObjCMetaData.et import * import objc import sys import os from scanframework import indentET, HEADER def find_node(root, type, name, nameAttr='name'): for node in root.findall(type): if node.get(nameAttr) == name: return node return None def filter64(value): result = {} for k in value: if k.endswith('64'): continue result[k] = value[k] # Make sure all irrelavant bits of the signature string get ignored if 'type' in value: result['type'] = ''.join(objc.splitSignature(value['type'])) return result def diffDict(first, second): first = filter64(first) second = filter64(second) result = [] for k in sorted(first): if k not in second: result.append('<%s'%(k,)) elif first[k] != second[k]: result.append('!%s[%s!=%s]'%(k, first[k], second[k])) for k in sorted(second): if k.endswith('64'): # Ignore 64-bit variants for now continue if k not in first: result.append('>%s'%(k,)) return ' '.join(result) def diffSimple(first, second, tag): for f in first.findall(tag): s = find_node(second, tag, f.get('name')) if s is None: print "< %s %s"%(tag, f.get('name')) elif filter64(f.attrib) != filter64(s.attrib): print "! %s %s"%(tag, f.get('name')) print " ", diffDict(f.attrib, s.attrib) for s in second.findall(tag): f = find_node(first, tag, s.get('name')) if f is None: print "> %s %s"%(tag, s.get('name')) def diffFunction(first, second, prefix='function', nameAttr='name'): if filter64(first.attrib) != filter64(second.attrib): print '! %s %s'%(prefix, first.get(nameAttr)) print ' ', diffDict(first.attrib, second.attrib) f_r = None f_a = [] s_r = None s_a = [] for n in first: if n.tag == 'retval': if f_r is not None: print '** < %s.retval duplicate for %s'%(prefix, first.get(nameAttr)) f_r = n elif n.tag == 'arg': f_a.append(n) else: print '** < %s.%s for %s: unknown tag'%(prefix, n.tag, first.get(nameAttr)) for n in second: if n.tag == 'retval': if s_r is not None: print '** > %s.retval duplicate for %s'%(prefix, second.get(nameAttr)) s_r = n elif n.tag == 'arg': s_a.append(n) else: print '** < %s.%s for %s: unknown tag'%(prefix, n.tag, first.get(nameAttr)) if f_r is None: if s_r is not None and (s_r.get('type') != objc._C_VOID or len(s_r.attrib) != 1): print '> %s.retval %s'%(prefix, first.get(nameAttr)) else: if s_r is None and (f_r.get('type') != objc._C_VOID or len(f_r.attrib) != 1): print '> %s.retval %s'%(prefix, first.get(nameAttr)) elif s_r is not None: if filter64(s_r.attrib) != filter64(f_r.attrib): print '! %s.retval %s'%(prefix, first.get(nameAttr)) print ' ', diffDict(f_r.attrib, s_r.attrib) for idx in range(max(len(f_a), len(s_a))): try: f = f_a[idx] except IndexError: f = None try: s = s_a[idx] except IndexError: s = None if s is None: print '< %s.argument[%d] %s'%(prefix, idx, first.get(nameAttr)) elif f is None: print '> %s.argument[%d] %s'%(prefix, idx, first.get(nameAttr)) else: if f.attrib != s.attrib: print '! %s.argument[%d] %s'%(prefix, idx, first.get(nameAttr)) print ' ', diffDict(f.attrib, s.attrib) def diffFunctionList(first, second, tag, nameAttr='name', prefix=None): if prefix is None: prefix = tag for f in first.findall(tag): s = find_node(second, tag, f.get(nameAttr), nameAttr=nameAttr) if s is None: print "< %s %s"%(prefix, f.get(nameAttr)) else: diffFunction(f, s, prefix, nameAttr) for s in second.findall(tag): f = find_node(first, tag, s.get(nameAttr), nameAttr=nameAttr) if f is None: print "> %s %s"%(prefix, s.get(nameAttr)) def diffClassList(first, second): for f in first.findall('class'): s = find_node(second, 'class', f.get('name')) if s is None: print "< %s %s"%('class', f.get('name')) else: diffFunctionList(f, s, 'method', nameAttr='selector', prefix='class[%s].method'%(f.get('name'))) for s in second.findall('class'): f = find_node(first, 'class', s.get('name')) if f is None: print "> %s %s"%('class', s.get('name')) def diffProtocolList(first, second): for f in first.findall('informal_protocol'): s = find_node(second, 'informal_protocol', f.get('name')) if s is None: print "< %s %s"%('informal_protocol', f.get('name')) else: diffFunctionList(f, s, 'method', nameAttr='selector', prefix='informal_protocol[%s].method'%(f.get('name'))) for s in second.findall('informal_protocol'): f = find_node(first, 'informal_protocol', s.get('name')) if f is None: print "> %s %s"%('informal_protocol', s.get('name')) def main(): if len(sys.argv) == 2: fwk = sys.argv[1] for dirpath, dirnames, filenames in os.walk(os.path.expanduser('~/Projects/pyobjc-leopard/BridgeSupport~dst')): if fwk + '.bridgesupport' in filenames: first = os.path.join(dirpath, fwk + '.bridgesupport') break else: raise RuntimeError("No Leopard data for %s"%(fwk,)) second = os.path.join(os.path.expanduser('~'), 'Projects', 'pyobjc-leopard', 'stable', 'pyobjc-framework-%s'%(fwk), 'Lib', fwk, 'PyObjC.bridgesupport') if not os.path.exists(second): test = os.path.join(os.path.expanduser('~'), 'Projects', 'pyobjc-leopard', 'stable', 'pyobjc-framework-Cocoa', 'Lib', fwk, 'PyObjC.bridgesupport') if not os.path.exists(test): test = os.path.join(os.path.expanduser('~'), 'Projects', 'pyobjc-leopard', 'stable', 'pyobjc-framework-Quartz', 'Lib', fwk, 'PyObjC.bridgesupport') if os.path.exists(test): second = test else: second = test elif len(sys.argv) == 3: first = sys.argv[1] second = sys.argv[2] else: print >>sys.stderr, "Usage: %s orig new" sys.exit(1) print "Comparing %s and %s"%(first, second) first = ET.parse(first).getroot() second = ET.parse(second).getroot() diffSimple(first, second, 'struct') diffSimple(first, second, 'cftype') diffSimple(first, second, 'opaque') diffSimple(first, second, 'constant') diffSimple(first, second, 'string_constant') diffSimple(first, second, 'enum') diffFunctionList(first, second, 'function') diffFunctionList(first, second, 'static_inline') diffClassList(first, second) diffProtocolList(first, second) if __name__ == "__main__": main()