Esempio n. 1
0
 def findforward(self):
     # search for the new text of the hunk already in the file.
     # the file should already be hashed
     hlines = self.hunk.newctrl()
     orig_start = self.hunk.startb
     if len(hlines) < 6:
         # only guess about applied hunks when there is some context.
         return False
     for fuzzlen in xrange(3):
         lines = self.hunk.fuzzit(hlines, fuzzlen, False)
         cand = self.file.findlines(lines[0][1:], orig_start)
         for l in cand:
             if diffhelpers.testhunk(lines, self.file.lines, l) == 0:
                 self.file.ui.warn(
                          _("hunk %d already applied at line %d (fuzz %d)\n"
                          % (self.hunk.number, l+1, fuzzlen)))
                 return True
     return False
Esempio n. 2
0
    def apply(self, h, reverse):
        if not h.complete():
            raise PatchError(_("bad hunk #%d %s (%d %d %d %d)") %
                            (h.number, h.desc, len(h.a), h.lena, len(h.b),
                            h.lenb))

        self.hunks += 1
        if reverse:
            h.reverse()

        if self.exists and h.createfile():
            self.ui.warn(_("file %s already exists\n") % self.fname)
            self.rej.append(h)
            return -1

        if isinstance(h, binhunk):
            if h.rmfile():
                os.unlink(self.fname)
            else:
                self.lines[:] = h.new()
                self.offset += len(h.new())
                self.dirty = 1
            return 0

        # fast case first, no offsets, no fuzz
        old = h.old()
        # patch starts counting at 1 unless we are adding the file
        if h.starta == 0:
            start = 0
        else:
            start = h.starta + self.offset - 1
        orig_start = start
        if diffhelpers.testhunk(old, self.lines, start) == 0:
            if h.rmfile():
                os.unlink(self.fname)
            else:
                self.lines[start : start + h.lena] = h.new()
                self.offset += h.lenb - h.lena
                self.dirty = 1
            return 0

        # ok, we couldn't match the hunk.  Lets look for offsets and fuzz it
        self.hashlines()
        if h.hunk[-1][0] != ' ':
            # if the hunk tried to put something at the bottom of the file
            # override the start line and use eof here
            search_start = len(self.lines)
        else:
            search_start = orig_start

        for fuzzlen in xrange(3):
            for toponly in [ True, False ]:
                old = h.old(fuzzlen, toponly)

                cand = self.findlines(old[0][1:], search_start)
                for l in cand:
                    if diffhelpers.testhunk(old, self.lines, l) == 0:
                        newlines = h.new(fuzzlen, toponly)
                        self.lines[l : l + len(old)] = newlines
                        self.offset += len(newlines) - len(old)
                        self.dirty = 1
                        offset = l - orig_start - fuzzlen
                        if fuzzlen:
                            msg = _("Hunk #%d succeeded at %d "
                                    "with fuzz %d "
                                    "(offset %d lines).\n")
                            self.printfile(True)
                            self.ui.warn(msg %
                                (h.number, l + 1, fuzzlen, offset))
                        else:
                            msg = _("Hunk #%d succeeded at %d "
                                    "(offset %d lines).\n")
                            self.ui.note(msg % (h.number, l + 1, offset))
                        return fuzzlen
        self.printfile(True)
        self.ui.warn(_("Hunk #%d FAILED at %d\n") % (h.number, orig_start))
        self.rej.append(h)
        return -1