#
# RTEMS Tools Project (http://www.rtems.org/)
# Copyright 2010-2016 Chris Johns (chrisj@rtems.org)
# All rights reserved.
#
# This file is part of the RTEMS Tools package in 'rtems-tools'.
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
# Provide some basic access to the git command.
#
from __future__ import print_function
import os
import error
import execute
import log
import options
import path
class repo:
"""An object to manage a git repo."""
def _git_exit_code(self, ec):
if ec:
raise error.general('git command failed (%s): %d' % (self.git, ec))
def _run(self, args, check = False):
e = execute.capture_execution()
if path.exists(self.path):
cwd = self.path
else:
cwd = None
cmd = [self.git] + args
log.trace('cmd: (%s) %s' % (str(cwd), ' '.join(cmd)))
exit_code, proc, output = e.spawn(cmd, cwd = path.host(cwd))
log.trace(output)
if check:
self._git_exit_code(exit_code)
return exit_code, output
def __init__(self, _path, opts = None, macros = None):
self.path = _path
self.opts = opts
if macros is None and opts is not None:
self.macros = opts.defaults
else:
self.macros = macros
if self.macros is None:
self.git = 'git'
else:
self.git = self.macros.expand('%{__git}')
def git_version(self):
ec, output = self._run(['--version'], True)
gvs = output.split()
if len(gvs) < 3:
raise error.general('invalid version string from git: %s' % (output))
vs = gvs[2].split('.')
if len(vs) != 4:
raise error.general('invalid version number from git: %s' % (gvs[2]))
return (int(vs[0]), int(vs[1]), int(vs[2]), int(vs[3]))
def clone(self, url, _path):
ec, output = self._run(['clone', url, path.host(_path)], check = True)
def fetch(self):
ec, output = self._run(['fetch'], check = True)
def merge(self):
ec, output = self._run(['merge'], check = True)
def pull(self):
ec, output = self._run(['pull'], check = True)
def reset(self, args):
if type(args) == str:
args = [args]
ec, output = self._run(['reset'] + args, check = True)
def branch(self):
ec, output = self._run(['branch'])
if ec == 0:
for b in output.split('\n'):
if b[0] == '*':
return b[2:]
return None
def checkout(self, branch = 'master'):
ec, output = self._run(['checkout', branch], check = True)
def submodule(self, module):
ec, output = self._run(['submodule', 'update', '--init', module], check = True)
def clean(self, args = []):
if type(args) == str:
args = [args]
ec, output = self._run(['clean'] + args, check = True)
def status(self):
_status = {}
if path.exists(self.path):
ec, output = self._run(['status'])
if ec == 0:
state = 'none'
for l in output.split('\n'):
if l.startswith('# '):
l = l[2:]
if l.startswith('On branch '):
_status['branch'] = l[len('On branch '):]
elif l.startswith('Changes to be committed:'):
state = 'staged'
elif l.startswith('Changes not staged for commit:'):
state = 'unstaged'
elif l.startswith('Untracked files:'):
state = 'untracked'
elif l.startswith('HEAD detached'):
state = 'detached'
elif state != 'none' and len(l.strip()) != 0:
if l[0].isspace():
l = l.strip()
if l[0] != '(':
if state not in _status:
_status[state] = []
l = l[1:]
if ':' in l:
l = l.split(':')[1]
_status[state] += [l.strip()]
return _status
def dirty(self):
_status = self.status()
return not (len(_status) == 1 and 'branch' in _status)
def valid(self):
if path.exists(self.path):
ec, output = self._run(['status'])
return ec == 0
return False
def remotes(self):
_remotes = {}
ec, output = self._run(['config', '--list'])
if ec == 0:
for l in output.split('\n'):
if l.startswith('remote'):
ls = l.split('=')
if len(ls) >= 2:
rs = ls[0].split('.')
if len(rs) == 3:
r_name = rs[1]
r_type = rs[2]
if r_name not in _remotes:
_remotes[r_name] = {}
if r_type not in _remotes[r_name]:
_remotes[r_name][r_type] = []
_remotes[r_name][r_type] = '='.join(ls[1:])
return _remotes
def email(self):
_email = None
_name = None
ec, output = self._run(['config', '--list'])
if ec == 0:
for l in output.split('\n'):
if l.startswith('user.email'):
ls = l.split('=')
if len(ls) >= 2:
_email = ls[1]
elif l.startswith('user.name'):
ls = l.split('=')
if len(ls) >= 2:
_name = ls[1]
if _email is not None:
if _name is not None:
_email = '%s <%s>' % (_name, _email)
return _email
return None
def head(self):
hash = ''
ec, output = self._run(['log', '-n', '1'])
if ec == 0:
l1 = output.split('\n')[0]
if l1.startswith('commit '):
hash = l1[len('commit '):]
return hash
if __name__ == '__main__':
import sys
opts = options.load(sys.argv)
g = repo('.', opts)
print(g.git_version())
print(g.valid())
print(g.status())
print(g.clean())
print(g.remotes())
print(g.email())
print(g.head())
