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# Copyright (C) 2006-2011 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Lists of ignore files, etc."""
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from __future__ import absolute_import
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from io import BytesIO
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from .lazy_import import lazy_import
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lazy_import(globals(), """
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# ~/.config/breezy/ignore will be filled out using
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# this ignore list, if it does not exist
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# please keep these sorted (in C locale order) to aid merging
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def parse_ignore_file(f):
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"""Read in all of the lines in the file and turn it into an ignore list
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Continue in the case of utf8 decoding errors, and emit a warning when
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such and error is found. Optimise for the common case -- no decoding
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ignore_file = f.read()
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# Try and parse whole ignore file at once.
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unicode_lines = ignore_file.decode('utf8').split('\n')
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except UnicodeDecodeError:
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# Otherwise go though line by line and pick out the 'good'
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lines = ignore_file.split(b'\n')
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for line_number, line in enumerate(lines):
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unicode_lines.append(line.decode('utf-8'))
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except UnicodeDecodeError:
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# report error about line (idx+1)
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'.bzrignore: On Line #%d, malformed utf8 character. '
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'Ignoring line.' % (line_number + 1))
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# Append each line to ignore list if it's not a comment line
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for line in unicode_lines:
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line = line.rstrip('\r\n')
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if not line or line.startswith('#'):
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ignored.add(globbing.normalize_pattern(line))
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def get_user_ignores():
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"""Get the list of user ignored files, possibly creating it."""
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path = bedding.user_ignore_config_path()
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patterns = set(USER_DEFAULTS)
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except (IOError, OSError) as e:
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# open() shouldn't return an IOError without errno, but just in case
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err = getattr(e, 'errno', None)
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if err not in (errno.ENOENT,):
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# Create the ignore file, and just return the default
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# We want to ignore if we can't write to the file
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# since get_* should be a safe operation
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_set_user_ignores(USER_DEFAULTS)
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except EnvironmentError as e:
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if e.errno not in (errno.EPERM, errno.ENOENT):
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return parse_ignore_file(f)
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def _set_user_ignores(patterns):
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"""Fill out the user ignore file with the given patterns
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This may raise an error if it doesn't have permission to
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write to the user ignore file.
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This is mostly used for testing, since it would be
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bad form to rewrite a user's ignore list.
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breezy only writes this file if it does not exist.
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ignore_path = bedding.user_ignore_config_path()
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bedding.ensure_config_dir_exists()
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# Create an empty file
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with open(ignore_path, 'wb') as f:
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for pattern in patterns:
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f.write(pattern.encode('utf8') + b'\n')
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def add_unique_user_ignores(new_ignores):
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"""Add entries to the user's ignore list if not present.
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:param new_ignores: A list of ignore patterns
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:return: The list of ignores that were added
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ignored = get_user_ignores()
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for ignore in new_ignores:
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ignore = globbing.normalize_pattern(ignore)
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if ignore not in ignored:
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to_add.append(ignore)
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with open(bedding.user_ignore_config_path(), 'ab') as f:
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for pattern in to_add:
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f.write(pattern.encode('utf8') + b'\n')
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_runtime_ignores = set()
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def add_runtime_ignores(ignores):
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"""Add some ignore patterns that only exists in memory.
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This is used by some plugins that want bzr to ignore files,
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but don't want to change a users ignore list.
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(Such as a conversion script that needs to ignore temporary files,
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but does not want to modify the project's ignore list.)
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:param ignores: A list or generator of ignore patterns.
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global _runtime_ignores
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_runtime_ignores.update(set(ignores))
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def get_runtime_ignores():
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"""Get the current set of runtime ignores."""
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return _runtime_ignores
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def tree_ignores_add_patterns(tree, name_pattern_list):
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"""Add more ignore patterns to the ignore file in a tree.
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If ignore file does not exist then it will be created.
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The ignore file will be automatically added under version control.
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:param tree: Working tree to update the ignore list.
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:param name_pattern_list: List of ignore patterns.
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# read in the existing ignores set
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ifn = tree.abspath(tree._format.ignore_filename)
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if tree.has_filename(ifn):
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with open(ifn, 'rb') as f:
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file_contents = f.read()
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if file_contents.find(b'\r\n') != -1:
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newline = os.linesep.encode()
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with BytesIO(file_contents) as sio:
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ignores = parse_ignore_file(sio)
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# write out the updated ignores set
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with atomicfile.AtomicFile(ifn, 'wb') as f:
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# write the original contents, preserving original line endings
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f.write(file_contents)
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if len(file_contents) > 0 and not file_contents.endswith(b'\n'):
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for pattern in name_pattern_list:
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if pattern not in ignores:
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f.write(pattern.encode('utf-8'))
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if not tree.is_versioned(tree._format.ignore_filename):
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tree.add([tree._format.ignore_filename])