/brz/remove-bazaar

# Copyright (C) 2010 Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""bzr grep"""

from bzrlib.lazy_import import lazy_import

lazy_import(globals(), """

import os

import re

import cStringIO

from bzrlib import (

    errors,

    lazy_regex,

    osutils,

    textfile,

    trace,

    )

""")

def compile_pattern(pattern, flags=0):

    patternc = None

    try:

        # use python's re.compile as we need to catch re.error in case of bad pattern

        lazy_regex.reset_compile()

        patternc = re.compile(pattern, flags)

    except re.error, e:

        raise errors.BzrError("Invalid pattern: '%s'" % pattern)

    return patternc

def dir_grep(tree, path, relpath, recursive, line_number, compiled_pattern,

    from_root, eol_marker, revno, print_revno, outf, path_prefix):

        # setup relpath to open files relative to cwd

        rpath = relpath

        if relpath:

            rpath = osutils.pathjoin('..',relpath)

        tree.lock_read()

        try:

            from_dir = osutils.pathjoin(relpath, path)

            if from_root:

                # start searching recursively from root

                from_dir=None

                recursive=True

            for fp, fc, fkind, fid, entry in tree.list_files(include_root=False,

                from_dir=from_dir, recursive=recursive):

                if fc == 'V' and fkind == 'file':

                    file_grep(tree, fid, rpath, fp, compiled_pattern,

                        eol_marker, line_number, revno, print_revno, outf, path_prefix)

        finally:

            tree.unlock()

def file_grep(tree, id, relpath, path, patternc, eol_marker,

        line_number, revno, print_revno, outf, path_prefix = None):

    if relpath:

        # update path so to display it w.r.t cwd

        # handle windows slash separator

        path = osutils.normpath(osutils.pathjoin(relpath, path))

        path = path.replace('\\', '/')

        path = path.replace(relpath + '/', '', 1)

    if path_prefix and path_prefix != '.':

        # user has passed a dir arg, show that as result prefix

        path = osutils.pathjoin(path_prefix, path)

    revfmt = ''

    if print_revno:

        revfmt = "~%s"

    fmt_with_n = path + revfmt + ":%d:%s" + eol_marker

    fmt_without_n = path + revfmt + ":%s" + eol_marker

    # test and skip binary files

    str_file = cStringIO.StringIO(tree.get_file_text(id))

    try:

        iter_file = textfile.text_file(str_file)

    except errors.BinaryFile, e:

        trace.warning("Binary file '%s' skipped." % path)

        return

    index = 1

    for line in iter_file:

        res = patternc.search(line)

        if res:

            if line_number:

                if print_revno:

                    out = (revno, index, line.strip())

                else:

                    out = (index, line.strip())

                outf.write(fmt_with_n % out)

            else:

                if print_revno:

                    out = (revno, line.strip())

                else:

                    out = (line.strip(),)

                outf.write(fmt_without_n % out)

        index += 1