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"""Wrapper around git command-line tools."""
from __future__ import absolute_import, print_function
from lib.util import (
CommonConfig,
SubprocessError,
run_command,
)
class Git(object):
"""Wrapper around git command-line tools."""
def __init__(self, args):
"""
:type args: CommonConfig
"""
self.args = args
self.git = 'git'
def get_diff(self, args):
"""
:type args: list[str]
:rtype: list[str]
"""
cmd = ['diff'] + args
return self.run_git_split(cmd, '\n')
def get_diff_names(self, args):
"""
:type args: list[str]
:rtype: list[str]
"""
cmd = ['diff', '--name-only', '--no-renames', '-z'] + args
return self.run_git_split(cmd, '\0')
def get_file_names(self, args):
"""
:type args: list[str]
:rtype: list[str]
"""
cmd = ['ls-files', '-z'] + args
return self.run_git_split(cmd, '\0')
def get_branches(self):
"""
:rtype: list[str]
"""
cmd = ['for-each-ref', 'refs/heads/', '--format', '%(refname:strip=2)']
return self.run_git_split(cmd)
def get_branch(self):
"""
:rtype: str
"""
cmd = ['symbolic-ref', '--short', 'HEAD']
return self.run_git(cmd).strip()
def get_branch_fork_point(self, branch):
"""
:type branch: str
:rtype: str
"""
cmd = ['merge-base', '--fork-point', branch]
return self.run_git(cmd).strip()
def is_valid_ref(self, ref):
"""
:type ref: str
:rtype: bool
"""
cmd = ['show', ref]
try:
self.run_git(cmd)
return True
except SubprocessError:
return False
def run_git_split(self, cmd, separator=None):
"""
:type cmd: list[str]
:param separator: str | None
:rtype: list[str]
"""
output = self.run_git(cmd).strip(separator)
if not output:
return []
return output.split(separator)
def run_git(self, cmd):
"""
:type cmd: list[str]
:rtype: str
"""
return run_command(self.args, [self.git] + cmd, capture=True, always=True)[0]
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