comparison mercurial/patch.py @ 12671:1b4e3152da13

patch: remove internal patcher fallback and NoHunk error

By now the internal patcher is probably more reliable than anything we might
find on the command line.

12670:d82d40ff9860

import base85, mdiff, util, diffhelpers, copies, encoding

gitre = re.compile('diff --git a/(.*) b/(.*)')

class PatchError(Exception):
    pass

class NoHunks(PatchError):
    pass

# helper functions

def copyfile(src, dst, basedir):

    lr = linereader(fp)
    # gitworkdone is True if a git operation (copy, rename, ...) was
    # performed already for the current file. Useful when the file
    # section may have no hunk.
    gitworkdone = False
    empty = None

    while True:
        newfile = newgitfile = False
        x = lr.readline()
        if not x:

        if current_hunk:
            if x.startswith('\ '):
                current_hunk.fix_newline()
            yield 'hunk', current_hunk
            current_hunk = None
            empty = False
        if ((sourcefile or state == BFILE) and ((not context and x[0] == '@') or
            ((context is not False) and x.startswith('***************')))):
            try:
                if context is None and x.startswith('***************'):
                    context = True

                continue
            hunknum += 1
            if emitfile:
                emitfile = False
                yield 'file', (afile, bfile, current_hunk)
                empty = False
        elif state == BFILE and x.startswith('GIT binary patch'):
            current_hunk = binhunk(changed[bfile])
            hunknum += 1
            if emitfile:
                emitfile = False
                yield 'file', ('a/' + afile, 'b/' + bfile, current_hunk)
                empty = False
            current_hunk.extract(lr)
        elif x.startswith('diff --git'):
            # check for git diff, scanning the whole patch file if needed
            m = gitre.match(x)
            gitworkdone = False

            context = True
            afile = parsefilename(x)
            bfile = parsefilename(l2)

        if newfile:
            if empty:
                raise NoHunks
            empty = not gitworkdone
            gitworkdone = False

        if newgitfile or newfile:
            emitfile = True
            state = BFILE
            hunknum = 0
    if current_hunk:
        if current_hunk.complete():
            yield 'hunk', current_hunk
            empty = False
        else:
            raise PatchError(_("malformed patch %s %s") % (afile,
                             current_hunk.desc))

    if (empty is None and not gitworkdone) or empty:
        raise NoHunks


def applydiff(ui, fp, changed, strip=1, sourcefile=None, eolmode='strict'):
    """Reads a patch from fp and tries to apply it.

    The dict 'changed' is filled in with all of the filenames changed

        files = {}
    try:
        if patcher:
            return externalpatch(patcher, args, patchname, ui, strip, cwd,
                                 files)
        else:
            try:
                return internalpatch(patchname, ui, strip, cwd, files, eolmode)
            except NoHunks:
                ui.warn(_('internal patcher failed\n'
                          'please report details to '
                          'http://mercurial.selenic.com/bts/\n'
                          'or [e-mail]\n'))
                patcher = (util.find_exe('gpatch') or util.find_exe('patch')
                           or 'patch')
                ui.debug('no valid hunks found; trying with %r instead\n' %
                         patcher)
                if util.needbinarypatch():
                    args.append('--binary')
                return externalpatch(patcher, args, patchname, ui, strip, cwd,
                                     files)
    except PatchError, err:
        s = str(err)
        if s:
            raise util.Abort(s)
        else:

12671:1b4e3152da13

import base85, mdiff, util, diffhelpers, copies, encoding

gitre = re.compile('diff --git a/(.*) b/(.*)')

class PatchError(Exception):
    pass

# helper functions

def copyfile(src, dst, basedir):

    lr = linereader(fp)
    # gitworkdone is True if a git operation (copy, rename, ...) was
    # performed already for the current file. Useful when the file
    # section may have no hunk.
    gitworkdone = False

    while True:
        newfile = newgitfile = False
        x = lr.readline()
        if not x:

        if current_hunk:
            if x.startswith('\ '):
                current_hunk.fix_newline()
            yield 'hunk', current_hunk
            current_hunk = None
        if ((sourcefile or state == BFILE) and ((not context and x[0] == '@') or
            ((context is not False) and x.startswith('***************')))):
            try:
                if context is None and x.startswith('***************'):
                    context = True

                continue
            hunknum += 1
            if emitfile:
                emitfile = False
                yield 'file', (afile, bfile, current_hunk)
        elif state == BFILE and x.startswith('GIT binary patch'):
            current_hunk = binhunk(changed[bfile])
            hunknum += 1
            if emitfile:
                emitfile = False
                yield 'file', ('a/' + afile, 'b/' + bfile, current_hunk)
            current_hunk.extract(lr)
        elif x.startswith('diff --git'):
            # check for git diff, scanning the whole patch file if needed
            m = gitre.match(x)
            gitworkdone = False

            context = True
            afile = parsefilename(x)
            bfile = parsefilename(l2)

        if newfile:
            gitworkdone = False

        if newgitfile or newfile:
            emitfile = True
            state = BFILE
            hunknum = 0
    if current_hunk:
        if current_hunk.complete():
            yield 'hunk', current_hunk
        else:
            raise PatchError(_("malformed patch %s %s") % (afile,
                             current_hunk.desc))

def applydiff(ui, fp, changed, strip=1, sourcefile=None, eolmode='strict'):
    """Reads a patch from fp and tries to apply it.

    The dict 'changed' is filled in with all of the filenames changed

        files = {}
    try:
        if patcher:
            return externalpatch(patcher, args, patchname, ui, strip, cwd,
                                 files)
        return internalpatch(patchname, ui, strip, cwd, files, eolmode)
    except PatchError, err:
        s = str(err)
        if s:
            raise util.Abort(s)
        else: