/usr/lib/python2.7/dist-packages/bzrlib/plugins/grep/cmds.py is in python-bzrlib 2.7.0-2ubuntu3.1.
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#
# 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
"""Print lines matching PATTERN for specified files and revisions."""
from __future__ import absolute_import
from bzrlib import errors
from bzrlib.commands import Command, display_command
from bzrlib.option import Option, ListOption
from bzrlib.config import GlobalConfig
# FIXME: _parse_levels should be shared with bzrlib.builtins. this is a copy
# to avoid the error
# "IllegalUseOfScopeReplacer: ScopeReplacer object '_parse_levels' was used
# incorrectly: Object already cleaned up, did you assign it to another
# variable?: _factory
# with lazy import
def _parse_levels(s):
try:
return int(s)
except ValueError:
msg = "The levels argument must be an integer."
raise errors.BzrCommandError(msg)
class GrepOptions(object):
"""Container to pass around grep options.
This class is used as a container to pass around user option and
some other params (like outf) to processing functions. This makes
it easier to add more options as grep evolves.
"""
verbose = False
ignore_case = False
no_recursive = False
from_root = False
null = False
levels = None
line_number = False
path_list = None
revision = None
pattern = None
include = None
exclude = None
fixed_string = False
files_with_matches = False
files_without_match = False
color = None
diff = False
# derived options
recursive = None
eol_marker = None
patternc = None
sub_patternc = None
print_revno = None
fixed_string = None
outf = None
show_color = False
class cmd_grep(Command):
"""Print lines matching PATTERN for specified files and revisions.
This command searches the specified files and revisions for a given
pattern. The pattern is specified as a Python regular expressions[1].
If the file name is not specified, the revisions starting with the
current directory are searched recursively. If the revision number is
not specified, the working copy is searched. To search the last committed
revision, use the '-r -1' or '-r last:1' option.
Unversioned files are not searched unless explicitly specified on the
command line. Unversioned directores are not searched.
When searching a pattern, the output is shown in the 'filepath:string'
format. If a revision is explicitly searched, the output is shown as
'filepath~N:string', where N is the revision number.
--include and --exclude options can be used to search only (or exclude
from search) files with base name matches the specified Unix style GLOB
pattern. The GLOB pattern an use *, ?, and [...] as wildcards, and \\
to quote wildcard or backslash character literally. Note that the glob
pattern is not a regular expression.
[1] http://docs.python.org/library/re.html#regular-expression-syntax
"""
encoding_type = 'replace'
takes_args = ['pattern', 'path*']
takes_options = [
'verbose',
'revision',
Option('color', type=str, argname='when',
help='Show match in color. WHEN is never, always or auto.'),
Option('diff', short_name='p',
help='Grep for pattern in changeset for each revision.'),
ListOption('exclude', type=str, argname='glob', short_name='X',
help="Skip files whose base name matches GLOB."),
ListOption('include', type=str, argname='glob', short_name='I',
help="Search only files whose base name matches GLOB."),
Option('files-with-matches', short_name='l',
help='Print only the name of each input file in '
'which PATTERN is found.'),
Option('files-without-match', short_name='L',
help='Print only the name of each input file in '
'which PATTERN is not found.'),
Option('fixed-string', short_name='F',
help='Interpret PATTERN is a single fixed string (not regex).'),
Option('from-root',
help='Search for pattern starting from the root of the branch. '
'(implies --recursive)'),
Option('ignore-case', short_name='i',
help='ignore case distinctions while matching.'),
Option('levels',
help='Number of levels to display - 0 for all, 1 for collapsed '
'(1 is default).',
argname='N',
type=_parse_levels),
Option('line-number', short_name='n',
help='show 1-based line number.'),
Option('no-recursive',
help="Don't recurse into subdirectories. (default is --recursive)"),
Option('null', short_name='Z',
help='Write an ASCII NUL (\\0) separator '
'between output lines rather than a newline.'),
]
@display_command
def run(self, verbose=False, ignore_case=False, no_recursive=False,
from_root=False, null=False, levels=None, line_number=False,
path_list=None, revision=None, pattern=None, include=None,
exclude=None, fixed_string=False, files_with_matches=False,
files_without_match=False, color=None, diff=False):
from bzrlib import _termcolor
from bzrlib.plugins.grep import (
grep,
)
import re
if path_list is None:
path_list = ['.']
else:
if from_root:
raise errors.BzrCommandError('cannot specify both --from-root and PATH.')
if files_with_matches and files_without_match:
raise errors.BzrCommandError('cannot specify both '
'-l/--files-with-matches and -L/--files-without-matches.')
global_config = GlobalConfig()
if color is None:
color = global_config.get_user_option('grep_color')
if color is None:
color = 'never'
if color not in ['always', 'never', 'auto']:
raise errors.BzrCommandError('Valid values for --color are '
'"always", "never" or "auto".')
if levels==None:
levels=1
print_revno = False
if revision != None or levels == 0:
# print revision numbers as we may be showing multiple revisions
print_revno = True
eol_marker = '\n'
if null:
eol_marker = '\0'
if not ignore_case and grep.is_fixed_string(pattern):
# if the pattern isalnum, implicitly use to -F for faster grep
fixed_string = True
elif ignore_case and fixed_string:
# GZ 2010-06-02: Fall back to regexp rather than lowercasing
# pattern and text which will cause pain later
fixed_string = False
pattern = re.escape(pattern)
patternc = None
re_flags = re.MULTILINE
if ignore_case:
re_flags |= re.IGNORECASE
if not fixed_string:
patternc = grep.compile_pattern(pattern, re_flags)
if color == 'always':
show_color = True
elif color == 'never':
show_color = False
elif color == 'auto':
show_color = _termcolor.allow_color()
GrepOptions.verbose = verbose
GrepOptions.ignore_case = ignore_case
GrepOptions.no_recursive = no_recursive
GrepOptions.from_root = from_root
GrepOptions.null = null
GrepOptions.levels = levels
GrepOptions.line_number = line_number
GrepOptions.path_list = path_list
GrepOptions.revision = revision
GrepOptions.pattern = pattern
GrepOptions.include = include
GrepOptions.exclude = exclude
GrepOptions.fixed_string = fixed_string
GrepOptions.files_with_matches = files_with_matches
GrepOptions.files_without_match = files_without_match
GrepOptions.color = color
GrepOptions.diff = False
GrepOptions.eol_marker = eol_marker
GrepOptions.print_revno = print_revno
GrepOptions.patternc = patternc
GrepOptions.recursive = not no_recursive
GrepOptions.fixed_string = fixed_string
GrepOptions.outf = self.outf
GrepOptions.show_color = show_color
if diff:
# options not used:
# files_with_matches, files_without_match
# levels(?), line_number, from_root
# include, exclude
# These are silently ignored.
grep.grep_diff(GrepOptions)
elif revision is None:
grep.workingtree_grep(GrepOptions)
else:
grep.versioned_grep(GrepOptions)
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