6.23.3.3. Posix Implementation

     1: #line 75 "diff.ipk"
     2: import os
     3: import tempfile
     4: import string
     5: import re
     6: 
     7: def compare_files(o,m):
     8:   cmd = 'diff -q '+o+' '+m
     9:   f = os.popen(cmd,'r')
    10:   output = f.read()
    11:   result = f.close()
    12:   return len(output)==0
    13: 
    14: def compare_code_files(o,m,**kwds):
    15:   # slack implementation
    16:   return compare_files(o,m)
    17: 
    18: def diff_files(o,m,patch=None, context=10):
    19:   cmd = 'diff -C'+str(context)+' '+o+' '+m
    20:   f = os.popen(cmd,'r')
    21:   output = f.read()
    22:   result = f.close()
    23:   if patch:
    24:     f = open(patch,'w')
    25:     f.write(output)
    26:     f.close()
    27:   return output
    28: 
    29: def diff_strings(o,m,context=0):
    30:   foname = tempfile.mktemp()
    31:   fmname = tempfile.mktemp()
    32:   fo = open(foname,'w')
    33:   fm = open(fmname,'w')
    34:   fo.write(o)
    35:   fm.write(m)
    36:   fo.close()
    37:   fm.close()
    38:   result = diff_files(foname, fmname,context=context)
    39:   os.unlink(foname)
    40:   os.unlink(fmname)
    41:   return result
    42: 
    43: def diff_lines(o,m,context=0):
    44:   os = string.join(o,'\n')+'\n'
    45:   om = string.join(m,'\n')+'\n'
    46:   result = diff_strings(os,om,context=context)
    47:   del os
    48:   del om
    49:   data = string.split(result,'\n')[:-1]
    50:   if data == []: return []
    51:   cs = data[0][0]
    52:   cm = data[1][0]
    53:   sep = data[2]
    54:   lth = len(data)
    55:   sections = []
    56:   for i in range(2,lth):
    57:     if data[i] == sep:
    58:       sections.append([])
    59:     else:
    60:       sections[-1].append(data[i])
    61:   del data
    62:   del lth
    63:   del sep
    64: 
    65:   for i in range(len(sections)):
    66:     section = sections[i]
    67:     sections[i] = []
    68:     for j in range(len(section)):
    69:       line = section[j]
    70:       code = line[0]+line[1]
    71:       if code == cs*2 or code == cm*2:
    72:         k = 0
    73:         first = 0
    74:         count = 0
    75:         while line[k] not in '0123456789': k = k + 1
    76:         while line[k] in '0123456789':
    77:           first = first * 10 +ord(line[k])-ord('0')
    78:           k = k + 1
    79:         first = first - 1
    80:         sections[i].append([[first,0]])
    81:       else:
    82:         lineno = first + count
    83:         count = count + 1
    84:         sections[i][-1][0][1] = count
    85:         sections[i][-1].append(('%3d'%(lineno+1))+':'+line)
    86:   return sections
    87: 
    88: def patch_file(o,diff,m):
    89:   cmd = 'patch -s -c -o ' + m + ' ' + o + ' -'
    90:   print cmd
    91:   f = os.popen(cmd,'w')
    92:   f.write(diff)
    93:   result = f.close()
    94: 
    95: def posix_patch(o,diff,m):
    96:   patch_file(o,diff,m)
    97: