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When running devtool deploy-target, we save a list of deployed files, and this list is used by devtool undeploy-target (or the next time deploy-target is run if the list is present, in case any files have been renamed or deleted since the first time). We were writing this file to the host, but it makes more sense to write the list to the target instead, so that if we for example swap in a different board, or switch hosts, things will work as expected. In order to do this properly we have to construct a shell script and ship it over to the target so we can run it. The manifest is written out to a hidden directory in the root (/.devtool). Fixes [YOCTO #7908]. (From OE-Core rev: a16a0c9334b785e2df896266c8911a2c7a1806b8) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
217 lines
9.7 KiB
Python
217 lines
9.7 KiB
Python
# Development tool - deploy/undeploy command plugin
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#
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# Copyright (C) 2014-2016 Intel Corporation
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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 version 2 as
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# published by the Free Software Foundation.
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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 along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""Devtool plugin containing the deploy subcommands"""
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import os
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import subprocess
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import logging
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import tempfile
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import shutil
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from devtool import exec_fakeroot, setup_tinfoil, check_workspace_recipe, DevtoolError
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logger = logging.getLogger('devtool')
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deploylist_path = '/.devtool'
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def _prepare_remote_script(deploy, verbose=False):
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"""
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Prepare a shell script for running on the target to
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deploy/undeploy files. We have to be careful what we put in this
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script - only commands that are likely to be available on the
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target are suitable (the target might be constrained, e.g. using
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busybox rather than bash with coreutils).
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"""
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lines = []
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lines.append('#!/bin/sh')
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lines.append('set -e')
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lines.append('manifest="%s/$1.list"' % deploylist_path)
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lines.append('if [ -f $manifest ] ; then')
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# Read manifest in reverse and delete files / remove empty dirs
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lines.append(' sed \'1!G;h;$!d\' $manifest | while read file')
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lines.append(' do')
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lines.append(' if [ -d $file ] ; then')
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lines.append(' rmdir $file > /dev/null 2>&1 || true')
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lines.append(' else')
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lines.append(' rm $file')
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lines.append(' fi')
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lines.append(' done')
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lines.append(' rm $manifest')
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if not deploy:
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# May as well remove all traces
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lines.append(' rmdir `dirname $manifest` > /dev/null 2>&1 || true')
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lines.append('fi')
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if deploy:
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lines.append('mkdir -p `dirname $manifest`')
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lines.append('mkdir -p $2')
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if verbose:
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lines.append(' tar xv -C $2 -f - | tee $manifest')
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else:
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lines.append(' tar xv -C $2 -f - > $manifest')
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lines.append('sed -i "s!^./!$2!" $manifest')
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# Delete the script itself
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lines.append('rm $0')
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lines.append('')
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return '\n'.join(lines)
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def deploy(args, config, basepath, workspace):
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"""Entry point for the devtool 'deploy' subcommand"""
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import re
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import oe.recipeutils
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check_workspace_recipe(workspace, args.recipename, checksrc=False)
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try:
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host, destdir = args.target.split(':')
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except ValueError:
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destdir = '/'
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else:
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args.target = host
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if not destdir.endswith('/'):
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destdir += '/'
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tinfoil = setup_tinfoil(basepath=basepath)
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try:
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rd = oe.recipeutils.parse_recipe_simple(tinfoil.cooker, args.recipename, tinfoil.config_data)
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except Exception as e:
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raise DevtoolError('Exception parsing recipe %s: %s' %
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(args.recipename, e))
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recipe_outdir = rd.getVar('D', True)
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if not os.path.exists(recipe_outdir) or not os.listdir(recipe_outdir):
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raise DevtoolError('No files to deploy - have you built the %s '
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'recipe? If so, the install step has not installed '
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'any files.' % args.recipename)
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if args.dry_run:
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print('Files to be deployed for %s on target %s:' % (args.recipename, args.target))
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for root, _, files in os.walk(recipe_outdir):
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for fn in files:
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print(' %s' % os.path.join(destdir, os.path.relpath(root, recipe_outdir), fn))
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return 0
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extraoptions = ''
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if args.no_host_check:
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extraoptions += '-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no'
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if not args.show_status:
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extraoptions += ' -q'
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# In order to delete previously deployed files and have the manifest file on
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# the target, we write out a shell script and then copy it to the target
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# so we can then run it (piping tar output to it).
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# (We cannot use scp here, because it doesn't preserve symlinks.)
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tmpdir = tempfile.mkdtemp(prefix='devtool')
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try:
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tmpscript = '/tmp/devtool_deploy.sh'
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shellscript = _prepare_remote_script(deploy=True, verbose=args.show_status)
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# Write out the script to a file
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with open(os.path.join(tmpdir, os.path.basename(tmpscript)), 'w') as f:
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f.write(shellscript)
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# Copy it to the target
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ret = subprocess.call("scp %s %s/* %s:%s" % (extraoptions, tmpdir, args.target, os.path.dirname(tmpscript)), shell=True)
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if ret != 0:
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raise DevtoolError('Failed to copy script to %s - rerun with -s to '
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'get a complete error message' % args.target)
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finally:
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shutil.rmtree(tmpdir)
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# Now run the script
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ret = exec_fakeroot(rd, 'tar cf - . | ssh %s %s \'sh %s %s %s\'' % (extraoptions, args.target, tmpscript, args.recipename, destdir), cwd=recipe_outdir, shell=True)
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if ret != 0:
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raise DevtoolError('Deploy failed - rerun with -s to get a complete '
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'error message')
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logger.info('Successfully deployed %s' % recipe_outdir)
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files_list = []
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for root, _, files in os.walk(recipe_outdir):
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for filename in files:
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filename = os.path.relpath(os.path.join(root, filename), recipe_outdir)
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files_list.append(os.path.join(destdir, filename))
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return 0
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def undeploy(args, config, basepath, workspace):
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"""Entry point for the devtool 'undeploy' subcommand"""
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extraoptions = ''
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if args.no_host_check:
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extraoptions += '-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no'
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if not args.show_status:
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extraoptions += ' -q'
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args.target = args.target.split(':')[0]
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if args.dry_run:
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listfile = os.path.join(deploylist_path, '%s.list' % args.recipename)
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print('Previously deployed files to be un-deployed for %s on target %s:' % (args.recipename, args.target))
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ret = subprocess.call('ssh %s %s \'[ -f %s ] && cat %s || true\'' % (extraoptions, args.target, listfile, listfile), shell=True)
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if ret != 0:
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raise DevtoolError('Undeploy failed - rerun with -s to get a complete '
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'error message')
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return 0
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tmpdir = tempfile.mkdtemp(prefix='devtool')
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try:
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tmpscript = '/tmp/devtool_undeploy.sh'
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shellscript = _prepare_remote_script(deploy=False)
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# Write out the script to a file
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with open(os.path.join(tmpdir, os.path.basename(tmpscript)), 'w') as f:
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f.write(shellscript)
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# Copy it to the target
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ret = subprocess.call("scp %s %s/* %s:%s" % (extraoptions, tmpdir, args.target, os.path.dirname(tmpscript)), shell=True)
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if ret != 0:
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raise DevtoolError('Failed to copy script to %s - rerun with -s to '
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'get a complete error message' % args.target)
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finally:
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shutil.rmtree(tmpdir)
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# Now run the script
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ret = subprocess.call('ssh %s %s \'sh %s %s\'' % (extraoptions, args.target, tmpscript, args.recipename), shell=True)
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if ret != 0:
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raise DevtoolError('Undeploy failed - rerun with -s to get a complete '
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'error message')
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logger.info('Successfully undeployed %s' % args.recipename)
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return 0
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def register_commands(subparsers, context):
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"""Register devtool subcommands from the deploy plugin"""
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parser_deploy = subparsers.add_parser('deploy-target',
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help='Deploy recipe output files to live target machine',
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description='Deploys a recipe\'s build output (i.e. the output of the do_install task) to a live target machine over ssh. Note: this only deploys the recipe itself and not any runtime dependencies, so it is assumed that those have been installed on the target beforehand.',
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group='testbuild')
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parser_deploy.add_argument('recipename', help='Recipe to deploy')
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parser_deploy.add_argument('target', help='Live target machine running an ssh server: user@hostname[:destdir]')
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parser_deploy.add_argument('-c', '--no-host-check', help='Disable ssh host key checking', action='store_true')
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parser_deploy.add_argument('-s', '--show-status', help='Show progress/status output', action='store_true')
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parser_deploy.add_argument('-n', '--dry-run', help='List files to be deployed only', action='store_true')
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parser_deploy.set_defaults(func=deploy)
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parser_undeploy = subparsers.add_parser('undeploy-target',
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help='Undeploy recipe output files in live target machine',
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description='Un-deploys recipe output files previously deployed to a live target machine by devtool deploy-target.',
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group='testbuild')
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parser_undeploy.add_argument('recipename', help='Recipe to undeploy')
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parser_undeploy.add_argument('target', help='Live target machine running an ssh server: user@hostname')
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parser_undeploy.add_argument('-c', '--no-host-check', help='Disable ssh host key checking', action='store_true')
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parser_undeploy.add_argument('-s', '--show-status', help='Show progress/status output', action='store_true')
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parser_undeploy.add_argument('-n', '--dry-run', help='List files to be undeployed only', action='store_true')
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parser_undeploy.set_defaults(func=undeploy)
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