464 lines
16 KiB
Python
464 lines
16 KiB
Python
from __future__ import print_function
|
|
from functools import reduce
|
|
from collections import namedtuple
|
|
import getopt
|
|
import gettext
|
|
import operator
|
|
import os
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
import pprint
|
|
try:
|
|
import configparser
|
|
except ImportError as e:
|
|
import ConfigParser as configparser
|
|
|
|
_ = gettext.gettext
|
|
|
|
|
|
# ___ __ _ ___ _
|
|
# / __|___ _ _ / _(_)__ _ | _ \___ __ _ __| |___ _ _
|
|
# | (__/ _ \ ' \| _| / _` | | / -_) _` / _` / -_) '_|
|
|
# \___\___/_||_|_| |_\__, | |_|_\___\__,_\__,_\___|_|
|
|
# |___/
|
|
|
|
|
|
def find_config_file(options, base):
|
|
""" Returns the configuration file from a prioritized list of locations.
|
|
|
|
Locations are prioritized as:
|
|
1. From the command line. Fail if specified but not found
|
|
2. The repository's root directory, as the file .git-lint
|
|
3. The repository's root directory, as the file .git-lint/config
|
|
4. The user's home directory, as file .git-lint
|
|
5. The user's home directory, as the file .git-lint/config
|
|
|
|
If no configuration file is found, this is an error.
|
|
"""
|
|
|
|
if 'config' in options:
|
|
config = options['config']
|
|
configpath = os.path.abspath(config)
|
|
if not os.path.isfile(configpath):
|
|
sys.exit(_('Configuration file not found: {}\n').format(config))
|
|
return configpath
|
|
|
|
home = os.path.join(os.environ.get('HOME'))
|
|
possibles = (os.path.join(base, '.git-lint'),
|
|
os.path.join(base, '.git-lint/config'),
|
|
os.path.join(home, '.git-lint'),
|
|
os.path.join(home, '.git-lint/config'))
|
|
|
|
matches = [p for p in possibles if os.path.isfile(p)]
|
|
if len(matches) == 0:
|
|
sys.exit(_('No configuration file found'))
|
|
|
|
return matches[0]
|
|
|
|
|
|
# (commandLineDictionary, repositoryLocation) -> (configurationDictionary | exit)
|
|
def load_config(options, base):
|
|
"""Loads the git-lint configuration file.
|
|
|
|
Returns the configuration file as a dictionary of dictionaries.
|
|
Performs substitutions as specified in the SafeConfigParser
|
|
specification; the only one performed currently is the 'repodir'
|
|
will be replaced with the base directory of the repository.
|
|
Combined with the option to specify the .git-lint configuration as
|
|
a directory, this allows users to keep per-project configuration
|
|
files for specific linters.
|
|
"""
|
|
|
|
Linter = namedtuple('Linter', ['name', 'linter'])
|
|
path = find_config_file(options, base)
|
|
configloader = configparser.SafeConfigParser()
|
|
configloader.read(path)
|
|
configloader.set('DEFAULT', 'repodir', base)
|
|
return [Linter(section, {k: v for (k, v) in configloader.items(section)})
|
|
for section in configloader.sections()]
|
|
|
|
|
|
# ___ _ _
|
|
# / __(_) |_
|
|
# | (_ | | _|
|
|
# \___|_|\__|
|
|
#
|
|
|
|
def get_git_response_raw(cmd):
|
|
fullcmd = (['git'] + cmd)
|
|
process = subprocess.Popen(fullcmd,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
universal_newlines=True)
|
|
(out, err) = process.communicate()
|
|
return (out, err, process.returncode)
|
|
|
|
|
|
def get_git_response(cmd):
|
|
(out, error, returncode) = get_git_response_raw(cmd)
|
|
return out
|
|
|
|
|
|
def split_git_response(cmd):
|
|
(out, error, returncode) = get_git_response_raw(cmd)
|
|
return out.splitlines()
|
|
|
|
|
|
def run_git_command(cmd):
|
|
fullcmd = (['git'] + cmd)
|
|
return subprocess.call(fullcmd,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
universal_newlines=True)
|
|
|
|
|
|
def get_shell_response(fullcmd):
|
|
process = subprocess.Popen(fullcmd,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
shell=True,
|
|
universal_newlines=True)
|
|
(out, err) = process.communicate()
|
|
return (out, err, process.returncode)
|
|
|
|
|
|
def get_git_base():
|
|
(out, error, returncode) = get_git_response_raw(
|
|
['rev-parse', '--show-toplevel'])
|
|
return (returncode == 0 and out.rstrip()) or None
|
|
|
|
|
|
def get_git_head():
|
|
empty_repository_hash = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'
|
|
(out, err, returncode) = get_git_response_raw(
|
|
['rev-parse', '--verify HEAD'])
|
|
return ((err and empty_repository_hash) or 'HEAD')
|
|
|
|
|
|
git_base = get_git_base()
|
|
git_head = get_git_head()
|
|
|
|
|
|
# _ _ _ _ _ _ _ _
|
|
# | | | | |_(_) (_) |_(_)___ ___
|
|
# | |_| | _| | | | _| / -_|_-<
|
|
# \___/ \__|_|_|_|\__|_\___/__/
|
|
#
|
|
|
|
def base_file_cleaner(files):
|
|
return [file.replace(git_base + '/', '', 1) for file in files]
|
|
|
|
|
|
class MatchFilter:
|
|
|
|
def __init__(self, config):
|
|
self.matcher = self.make_match_filter_matcher([v.linter.get('match', '') for v in config])
|
|
|
|
def __call__(self, path):
|
|
return self.matcher.search(path)
|
|
|
|
@staticmethod
|
|
def make_match_filter_matcher(extensions):
|
|
trimmed = [s.strip() for s in reduce(operator.add,
|
|
[ex.split(',') for ex in extensions], [])]
|
|
cleaned = [re.sub(r'^\.', '', s) for s in trimmed]
|
|
return re.compile(r'\.' + '|'.join(cleaned) + r'$')
|
|
|
|
|
|
# ___ _ _ _ _ _
|
|
# / __| |_ ___ __| |__ | (_)_ _| |_ ___ _ _ ___
|
|
# | (__| ' \/ -_) _| / / | | | ' \ _/ -_) '_(_-<
|
|
# \___|_||_\___\__|_\_\ |_|_|_||_\__\___|_| /__/
|
|
#
|
|
|
|
def executable_exists(script, label):
|
|
if not len(script):
|
|
sys.exit(
|
|
_('Syntax error in command configuration for {} ').format(label))
|
|
|
|
scriptname = script.split(' ').pop(0)
|
|
if not len(scriptname):
|
|
sys.exit(
|
|
_('Syntax error in command configuration for {} ').format(label))
|
|
|
|
def is_executable(path):
|
|
return os.path.exists(path) and os.access(path, os.X_OK)
|
|
|
|
if scriptname.startswith('/'):
|
|
return (is_executable(scriptname) and scriptname) or None
|
|
|
|
possibles = [path for path in
|
|
[os.path.join(path, scriptname)
|
|
for path in os.environ.get('PATH').split(':')]
|
|
if is_executable(path)]
|
|
return (len(possibles) and possibles.pop(0)) or False
|
|
|
|
|
|
def get_working_linter_names(config):
|
|
return [i.name for i in config
|
|
if executable_exists(i.linter['command'], i.name)]
|
|
|
|
|
|
def get_linter_status(config):
|
|
working_linter_names = get_working_linter_names(config)
|
|
broken_linter_names = (set([i.name for i in config]) - set(working_linter_names))
|
|
return working_linter_names, broken_linter_names
|
|
|
|
|
|
# ___ _ _ _ _ __ __ _ _
|
|
# / __|___| |_ | (_)__| |_ ___ / _| / _(_) |___ ___
|
|
# | (_ / -_) _| | | (_-< _| / _ \ _| | _| | / -_|_-<
|
|
# \___\___|\__| |_|_/__/\__| \___/_| |_| |_|_\___/__/
|
|
#
|
|
|
|
def get_filelist(options, extras):
|
|
""" Returns the list of files against which we'll run the linters. """
|
|
|
|
def base_file_filter(files):
|
|
""" Return the full path for all files """
|
|
return [os.path.join(git_base, file) for file in files]
|
|
|
|
def cwd_file_filter(filenames):
|
|
""" Return the full path for only those files in the cwd and down """
|
|
if os.path.samefile(os.getcwd(), git_base):
|
|
return base_file_filter(filenames)
|
|
gitcwd = os.path.join(os.path.relpath(os.getcwd(), git_base), '')
|
|
return base_file_filter([file for file in files
|
|
if file.startswith(gitcwd)])
|
|
|
|
def check_for_conflicts(filesets):
|
|
""" Scan list of porcelain files for merge conflic state. """
|
|
MERGE_CONFLICT_PAIRS = set(['DD', 'DU', 'AU', 'AA', 'UD', 'UA', 'UU'])
|
|
status_pairs = set(['' + f[0] + f[1] for f in filesets])
|
|
if len(status_pairs & MERGE_CONFLICT_PAIRS):
|
|
sys.exit(
|
|
_('Current repository contains merge conflicts. Linters will not be run.'))
|
|
return filesets
|
|
|
|
def remove_submodules(files):
|
|
""" Remove all submodules from the list of files git-lint cares about. """
|
|
|
|
fixer_re = re.compile('^(\\.\\.\\/)+')
|
|
submodules = split_git_response(['submodule', 'status'])
|
|
submodule_names = [fixer_re.sub('', submodule.split(' ')[2])
|
|
for submodule in submodules]
|
|
return [file for file in files if (file not in submodule_names)]
|
|
|
|
def get_porcelain_status():
|
|
""" Return the status of all files in the system. """
|
|
cmd = ['status', '-z', '--porcelain',
|
|
'--untracked-files=all', '--ignore-submodules=all']
|
|
stream = [entry for entry in get_git_response(cmd).split(u'\x00')
|
|
if len(entry) > 0]
|
|
|
|
def parse_stream(acc, stream):
|
|
"""Parse the list of files. T
|
|
|
|
The list is null-terminated, but is not columnar. If
|
|
there's an 'R' in the index state, it means the file was
|
|
renamed and the old name is added as a column, so it's a
|
|
special case as we accumulate the list of files.
|
|
"""
|
|
|
|
if len(stream) == 0:
|
|
return acc
|
|
entry = stream.pop(0)
|
|
(index, workspace, filename) = (entry[0], entry[1], entry[3:])
|
|
if index == 'R':
|
|
stream.pop(0)
|
|
return parse_stream(acc + [(index, workspace, filename)], stream)
|
|
|
|
return check_for_conflicts(parse_stream([], stream))
|
|
|
|
def staging_list():
|
|
""" Return the list of files added or modified to the stage """
|
|
|
|
return [filename for (index, workspace, filename) in get_porcelain_status()
|
|
if index in ['A', 'M']]
|
|
|
|
def working_list():
|
|
""" Return the list of files that have been modified in the workspace.
|
|
|
|
Includes the '?' to include files that git is not currently tracking.
|
|
"""
|
|
return [filename for (index, workspace, filename) in get_porcelain_status()
|
|
if workspace in ['A', 'M', '?']]
|
|
|
|
def all_list():
|
|
""" Return all the files git is currently tracking for this repository. """
|
|
cmd = ['ls-tree', '--name-only', '--full-tree', '-r', '-z', git_head]
|
|
return [file for file in get_git_response(cmd).split(u'\x00')
|
|
if len(file) > 0]
|
|
|
|
if len(extras):
|
|
cwd = os.path.abspath(os.getcwd())
|
|
extras_fullpathed = set([os.path.abspath(os.path.join(cwd, f)) for f in extras])
|
|
not_found = set([f for f in extras_fullpathed if not os.path.isfile(f)])
|
|
return ([os.path.relpath(f, cwd) for f in (extras_fullpathed - not_found)], not_found)
|
|
|
|
working_directory_trans = cwd_file_filter
|
|
if 'base' in options or 'every' in options:
|
|
working_directory_trans = base_file_filter
|
|
|
|
file_list_generator = working_list
|
|
if 'all' in options:
|
|
file_list_generator = all_list
|
|
if 'staging' in options:
|
|
file_list_generator = staging_list
|
|
|
|
return (working_directory_trans(remove_submodules(file_list_generator())), [])
|
|
|
|
|
|
# ___ _ _
|
|
# / __| |_ __ _ __ _(_)_ _ __ _ __ __ ___ _ __ _ _ __ _ __ ___ _ _
|
|
# \__ \ _/ _` / _` | | ' \/ _` | \ V V / '_/ _` | '_ \ '_ \/ -_) '_|
|
|
# |___/\__\__,_\__, |_|_||_\__, | \_/\_/|_| \__,_| .__/ .__/\___|_|
|
|
# |___/ |___/ |_| |_|
|
|
|
|
|
|
class Runner:
|
|
def __init__(self, options):
|
|
self.runner = ('staging' in options and Runner.staging_wrapper) or Runner.workspace_wrapper
|
|
|
|
def __call__(self, run_linters, filenames):
|
|
return self.runner(run_linters, filenames)
|
|
|
|
@staticmethod
|
|
def staging_wrapper(run_linters, filenames):
|
|
def time_gather(f):
|
|
stats = os.stat(f)
|
|
return (f, (stats.st_atime, stats.st_mtime))
|
|
|
|
times = [time_gather(file) for file in filenames]
|
|
run_git_command(['stash', '--keep-index'])
|
|
|
|
results = run_linters()
|
|
run_git_command(['reset', '--hard'])
|
|
run_git_command(['stash', 'pop', '--quiet', '--index'])
|
|
|
|
for (filename, timepair) in times:
|
|
os.utime(filename, timepair)
|
|
return results
|
|
|
|
@staticmethod
|
|
def workspace_wrapper(run_linters, filenames):
|
|
return run_linters()
|
|
|
|
|
|
# ___ _ _ _
|
|
# | _ \_ _ _ _ | (_)_ _| |_ _ __ __ _ ______
|
|
# | / || | ' \ | | | ' \ _| | '_ \/ _` (_-<_-<
|
|
# |_|_\\_,_|_||_| |_|_|_||_\__| | .__/\__,_/__/__/
|
|
# |_|
|
|
|
|
class Linters:
|
|
def __init__(self, linters, filenames):
|
|
self.linters = linters
|
|
self.filenames = filenames
|
|
|
|
@staticmethod
|
|
def encode_shell_messages(prefix, messages):
|
|
return ['{}{}'.format(prefix, line)
|
|
for line in messages.splitlines()]
|
|
|
|
@staticmethod
|
|
def run_external_linter(filename, linter, linter_name):
|
|
"""Run one linter against one file.
|
|
|
|
If the result matches the error condition specified in the configuration file,
|
|
return the error code and messages, either return nothing.
|
|
"""
|
|
|
|
cmd = linter['command'] + ' "' + filename + '"'
|
|
(out, err, returncode) = get_shell_response(cmd)
|
|
failed = ((out and (linter.get('condition', 'error') == 'output')) or err or (not (returncode == 0)))
|
|
trimmed_filename = filename.replace(git_base + '/', '', 1)
|
|
if not failed:
|
|
return (trimmed_filename, linter_name, 0, [])
|
|
|
|
prefix = (((linter.get('print', 'false').strip().lower() != 'true') and ' ')
|
|
or ' {}: '.format(trimmed_filename))
|
|
output = (Linters.encode_shell_messages(prefix, out) +
|
|
((err and Linters.encode_shell_messages(prefix, err)) or []))
|
|
return (trimmed_filename, linter_name, (returncode or 1), output)
|
|
|
|
|
|
@staticmethod
|
|
def run_one_linter(linter, filenames):
|
|
""" Runs one linter against a set of files
|
|
|
|
Creates a match filter for the linter, extract the files to be
|
|
linted, and runs the linter against each file, returning the
|
|
result as a list of successes and failures. Failures have a
|
|
return code and the output of the lint process.
|
|
"""
|
|
match_filter = MatchFilter([linter])
|
|
files = set([filename for filename in filenames if match_filter(filename)])
|
|
return [Linters.run_external_linter(filename, linter.linter, linter.name) for filename in files]
|
|
|
|
|
|
def __call__(self):
|
|
""" Returns a function to run a set of linters against a set of filenames
|
|
|
|
This returns a function because it's going to be wrapped in a
|
|
runner to better handle stashing and restoring a staged commit.
|
|
"""
|
|
return reduce(operator.add,
|
|
[Linters.run_one_linter(linter, self.filenames) for linter in self.linters], [])
|
|
|
|
|
|
def dryrun(self):
|
|
|
|
def dryrunonefile(filename, linter):
|
|
trimmed_filename = filename.replace(git_base + '/', '', 1)
|
|
return (trimmed_filename, linter.name, 0, [' {}'.format(trimmed_filename)])
|
|
|
|
def dryrunonce(linter, filenames):
|
|
match_filter = MatchFilter([linter])
|
|
files_to_check = [filename for filename in filenames if match_filter(filename)]
|
|
return [dryrunonefile(filename, linter) for filename in files_to_check]
|
|
|
|
return reduce(operator.add, [dryrunonce(linter, self.filenames) for linter in self.linters], [])
|
|
|
|
|
|
|
|
def run_linters(options, config, extras):
|
|
|
|
def build_config_subset(keys):
|
|
""" Returns a subset of the configuration, with only those linters mentioned in keys """
|
|
return [item for item in config if item.name in keys]
|
|
|
|
""" Runs the requested linters """
|
|
all_filenames, unfindable_filenames = get_filelist(options, extras)
|
|
|
|
is_lintable = MatchFilter(config)
|
|
|
|
lintable_filenames = set([filename for filename in all_filenames
|
|
if is_lintable(filename)])
|
|
|
|
unlintable_filenames = set(all_filenames) - lintable_filenames
|
|
|
|
working_linter_names, broken_linter_names = get_linter_status(config)
|
|
|
|
cant_lint_filter = MatchFilter(build_config_subset(
|
|
broken_linter_names))
|
|
|
|
cant_lint_filenames = [filename for filename in lintable_filenames
|
|
if cant_lint_filter(filename)]
|
|
|
|
runner = Runner(options)
|
|
|
|
linters = Linters(build_config_subset(working_linter_names),
|
|
sorted(lintable_filenames))
|
|
|
|
if 'dryrun' in options:
|
|
dryrun_results = linters.dryrun()
|
|
return (dryrun_results, unlintable_filenames, cant_lint_filenames,
|
|
broken_linter_names, unfindable_filenames)
|
|
|
|
results = runner(linters, lintable_filenames)
|
|
|
|
return (results, unlintable_filenames, cant_lint_filenames,
|
|
broken_linter_names, unfindable_filenames)
|