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- Committer: Tim Marston
- Date: 2014-02-12 21:51:08 UTC
- Revision ID: tim@ed.am-20140212215108-stk5z0nlvgpi4oa8
added bzr as a vcs backend; finished init command; implemented deployment
- files added:
- lib/stdhome/util.py
- lib/stdhome/vcs
- files modified:
- lib/stdhome/Makefile.am
added
removed
lib/stdhome/vcs/bzr.py
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# bzr.py
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#
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# Copyright (C) 2014 Tim Marston <tim@edm.am>
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#
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# This file is part of stdhome (hereafter referred to as "this program").
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# See http://ed.am/dev/stdhome for more information.
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#
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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 3 of the License, or
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# (at your option) any later version.
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#
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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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#
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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, see <http://www.gnu.org/licenses/>.
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import subprocess, os, re, shutil
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from subprocess import Popen
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import stdhome.the as the
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import StringIO
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class VcsBzr:
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def __init__( self, dir ):
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"""Init class
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@param dir the fully-qualified directory to work in.
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"""
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self.dir = dir
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def init( self ):
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"""Create a new, empty branch
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"""
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# the directory shouldn't exist
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os.mkdir( self.dir )
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# bzr init
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p = Popen( [ 'bzr', 'init', '.' ], cwd = self.dir,
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stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
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output = p.communicate()[ 0 ]
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if p.returncode > 0:
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# attempt to clean-up dir
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try:
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shutil.rmtree( self.dir )
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except OSError:
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pass
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raise the.program.FatalError( 'bzr init failed', output )
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def checkout( self, url ):
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"""Checkout a new copy of a remote branch.
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@param url the remote repository URL
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"""
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# the directory shouldn't exist
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os.mkdir( self.dir )
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# bzr co
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p = Popen( [ 'bzr', 'co', url, '.' ], cwd = self.dir,
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stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
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output = p.communicate()[ 0 ]
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if p.returncode > 0:
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# attempt to clean-up dir
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try:
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shutil.rmtree( self.dir )
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except OSError:
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pass
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raise the.program.FatalError( 'bzr checkout failed', output )
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def revert( self ):
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"""Revert the branch so that there are no outstanding changes or unknown files.
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"""
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# bzr revert
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p = Popen( [ 'bzr', 'revert', '--no-backup' ], cwd = self.dir,
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stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
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output = p.communicate()[ 0 ]
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if p.returncode > 0:
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raise the.program.FatalError( 'bzr revert failed', output )
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# bzr st
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p = Popen( [ 'bzr', 'st' ], cwd = self.dir,
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stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
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output = p.communicate()[ 0 ]
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if p.returncode > 0:
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raise the.program.FatalError( 'bzr status failed', output )
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files = self.parse_file_blocks( output )
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# remove unknown files
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if 'unknown' in files:
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for file in files[ 'unknown' ]:
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full_file = os.path.join( self.dir, file )
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if os.path.isfile( full_file ):
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os.unlink( full_file )
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elif os.full_file.isdir( full_file ):
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shutil.rmtree( full_file )
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else:
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raise RuntimeError( 'exotic file in repo: %s' % file )
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def update( self ):
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"""Update the branch, pulling down any upstream changes and merging them.
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"""
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# bzr update
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p = Popen( [ 'bzr', 'update' ], cwd = self.dir,
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stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
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output = p.communicate()[ 0 ]
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if p.returncode > 0:
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raise the.program.FatalError( 'bzr update failed', output )
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def has_changes( self ):
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"""Check if the branch has any local modifications.
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"""
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# bzr status
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p = Popen( [ 'bzr', 'status', '--no-pending' ], cwd = self.dir,
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stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
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output = p.communicate()[ 0 ]
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if p.returncode > 0:
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raise the.program.FatalError( 'bzr status failed', output )
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files = self.parse_file_blocks( output )
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return True if len( files ) else False
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def get_conflicts( self ):
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"""Return a list of files that have conflicts.
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"""
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# bzr status
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p = Popen( [ 'bzr', 'status', '--no-pending' ], cwd = self.dir,
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stdout = subprocess.PIPE, stderr = subprocess.STDOUT )
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output = p.communicate()[ 0 ]
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if p.returncode > 0:
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raise the.program.FatalError( 'bzr status failed', output )
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files = self.parse_file_blocks( output )
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return files['conflicts'] if 'conflicts' in files else None
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def parse_file_blocks( self, output ):
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res = dict()
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current = None
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buf = StringIO.StringIO( output )
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for line in buf:
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matches = re.search( '^([a-z ]+):$', line, re.I )
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if matches:
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current = matches.group( 1 )
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continue
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if current:
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matches = re.search( '^ ([^ ].*)$', line )
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if matches:
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if not current in res:
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res[ current ] = list()
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res[ current ].append( matches.group( 1 ) )
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continue
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if re.search( '^[0-9]+ shelf exists', line ): continue
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if re.search( '^working tree is out of date', line ): continue
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raise self.ParseError( "unrecognised line: %s" % line )
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return res
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class ParseError( Exception ):
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pass
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