| # Development tool - deploy/undeploy command plugin |
| # |
| # Copyright (C) 2014-2016 Intel Corporation |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License version 2 as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License along |
| # with this program; if not, write to the Free Software Foundation, Inc., |
| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| """Devtool plugin containing the deploy subcommands""" |
| |
| import os |
| import subprocess |
| import logging |
| import tempfile |
| import shutil |
| import argparse_oe |
| from devtool import exec_fakeroot, setup_tinfoil, check_workspace_recipe, DevtoolError |
| |
| logger = logging.getLogger('devtool') |
| |
| deploylist_path = '/.devtool' |
| |
| def _prepare_remote_script(deploy, verbose=False, dryrun=False, undeployall=False, nopreserve=False, nocheckspace=False): |
| """ |
| Prepare a shell script for running on the target to |
| deploy/undeploy files. We have to be careful what we put in this |
| script - only commands that are likely to be available on the |
| target are suitable (the target might be constrained, e.g. using |
| busybox rather than bash with coreutils). |
| """ |
| lines = [] |
| lines.append('#!/bin/sh') |
| lines.append('set -e') |
| if undeployall: |
| # Yes, I know this is crude - but it does work |
| lines.append('for entry in %s/*.list; do' % deploylist_path) |
| lines.append('[ ! -f $entry ] && exit') |
| lines.append('set `basename $entry | sed "s/.list//"`') |
| if dryrun: |
| if not deploy: |
| lines.append('echo "Previously deployed files for $1:"') |
| lines.append('manifest="%s/$1.list"' % deploylist_path) |
| lines.append('preservedir="%s/$1.preserve"' % deploylist_path) |
| lines.append('if [ -f $manifest ] ; then') |
| # Read manifest in reverse and delete files / remove empty dirs |
| lines.append(' sed \'1!G;h;$!d\' $manifest | while read file') |
| lines.append(' do') |
| if dryrun: |
| lines.append(' if [ ! -d $file ] ; then') |
| lines.append(' echo $file') |
| lines.append(' fi') |
| else: |
| lines.append(' if [ -d $file ] ; then') |
| # Avoid deleting a preserved directory in case it has special perms |
| lines.append(' if [ ! -d $preservedir/$file ] ; then') |
| lines.append(' rmdir $file > /dev/null 2>&1 || true') |
| lines.append(' fi') |
| lines.append(' else') |
| lines.append(' rm $file') |
| lines.append(' fi') |
| lines.append(' done') |
| if not dryrun: |
| lines.append(' rm $manifest') |
| if not deploy and not dryrun: |
| # May as well remove all traces |
| lines.append(' rmdir `dirname $manifest` > /dev/null 2>&1 || true') |
| lines.append('fi') |
| |
| if deploy: |
| if not nocheckspace: |
| # Check for available space |
| # FIXME This doesn't take into account files spread across multiple |
| # partitions, but doing that is non-trivial |
| # Find the part of the destination path that exists |
| lines.append('checkpath="$2"') |
| lines.append('while [ "$checkpath" != "/" ] && [ ! -e $checkpath ]') |
| lines.append('do') |
| lines.append(' checkpath=`dirname "$checkpath"`') |
| lines.append('done') |
| lines.append('freespace=`df -P $checkpath | sed "1d" | awk \'{ print $4 }\'`') |
| # First line of the file is the total space |
| lines.append('total=`head -n1 $3`') |
| lines.append('if [ $total -gt $freespace ] ; then') |
| lines.append(' echo "ERROR: insufficient space on target (available ${freespace}, needed ${total})"') |
| lines.append(' exit 1') |
| lines.append('fi') |
| if not nopreserve: |
| # Preserve any files that exist. Note that this will add to the |
| # preserved list with successive deployments if the list of files |
| # deployed changes, but because we've deleted any previously |
| # deployed files at this point it will never preserve anything |
| # that was deployed, only files that existed prior to any deploying |
| # (which makes the most sense) |
| lines.append('cat $3 | sed "1d" | while read file fsize') |
| lines.append('do') |
| lines.append(' if [ -e $file ] ; then') |
| lines.append(' dest="$preservedir/$file"') |
| lines.append(' mkdir -p `dirname $dest`') |
| lines.append(' mv $file $dest') |
| lines.append(' fi') |
| lines.append('done') |
| lines.append('rm $3') |
| lines.append('mkdir -p `dirname $manifest`') |
| lines.append('mkdir -p $2') |
| if verbose: |
| lines.append(' tar xv -C $2 -f - | tee $manifest') |
| else: |
| lines.append(' tar xv -C $2 -f - > $manifest') |
| lines.append('sed -i "s!^./!$2!" $manifest') |
| elif not dryrun: |
| # Put any preserved files back |
| lines.append('if [ -d $preservedir ] ; then') |
| lines.append(' cd $preservedir') |
| lines.append(' find . -type f -exec mv {} /{} \;') |
| lines.append(' cd /') |
| lines.append(' rm -rf $preservedir') |
| lines.append('fi') |
| |
| if undeployall: |
| if not dryrun: |
| lines.append('echo "NOTE: Successfully undeployed $1"') |
| lines.append('done') |
| |
| # Delete the script itself |
| lines.append('rm $0') |
| lines.append('') |
| |
| return '\n'.join(lines) |
| |
| |
| def deploy(args, config, basepath, workspace): |
| """Entry point for the devtool 'deploy' subcommand""" |
| import re |
| import math |
| import oe.recipeutils |
| |
| check_workspace_recipe(workspace, args.recipename, checksrc=False) |
| |
| try: |
| host, destdir = args.target.split(':') |
| except ValueError: |
| destdir = '/' |
| else: |
| args.target = host |
| if not destdir.endswith('/'): |
| destdir += '/' |
| |
| tinfoil = setup_tinfoil(basepath=basepath) |
| try: |
| rd = oe.recipeutils.parse_recipe_simple(tinfoil.cooker, args.recipename, tinfoil.config_data) |
| except Exception as e: |
| raise DevtoolError('Exception parsing recipe %s: %s' % |
| (args.recipename, e)) |
| recipe_outdir = rd.getVar('D', True) |
| if not os.path.exists(recipe_outdir) or not os.listdir(recipe_outdir): |
| raise DevtoolError('No files to deploy - have you built the %s ' |
| 'recipe? If so, the install step has not installed ' |
| 'any files.' % args.recipename) |
| |
| filelist = [] |
| ftotalsize = 0 |
| for root, _, files in os.walk(recipe_outdir): |
| for fn in files: |
| # Get the size in kiB (since we'll be comparing it to the output of du -k) |
| # MUST use lstat() here not stat() or getfilesize() since we don't want to |
| # dereference symlinks |
| fsize = int(math.ceil(float(os.lstat(os.path.join(root, fn)).st_size)/1024)) |
| ftotalsize += fsize |
| # The path as it would appear on the target |
| fpath = os.path.join(destdir, os.path.relpath(root, recipe_outdir), fn) |
| filelist.append((fpath, fsize)) |
| |
| if args.dry_run: |
| print('Files to be deployed for %s on target %s:' % (args.recipename, args.target)) |
| for item, _ in filelist: |
| print(' %s' % item) |
| return 0 |
| |
| |
| extraoptions = '' |
| if args.no_host_check: |
| extraoptions += '-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' |
| if not args.show_status: |
| extraoptions += ' -q' |
| |
| # In order to delete previously deployed files and have the manifest file on |
| # the target, we write out a shell script and then copy it to the target |
| # so we can then run it (piping tar output to it). |
| # (We cannot use scp here, because it doesn't preserve symlinks.) |
| tmpdir = tempfile.mkdtemp(prefix='devtool') |
| try: |
| tmpscript = '/tmp/devtool_deploy.sh' |
| tmpfilelist = os.path.join(os.path.dirname(tmpscript), 'devtool_deploy.list') |
| shellscript = _prepare_remote_script(deploy=True, |
| verbose=args.show_status, |
| nopreserve=args.no_preserve, |
| nocheckspace=args.no_check_space) |
| # Write out the script to a file |
| with open(os.path.join(tmpdir, os.path.basename(tmpscript)), 'w') as f: |
| f.write(shellscript) |
| # Write out the file list |
| with open(os.path.join(tmpdir, os.path.basename(tmpfilelist)), 'w') as f: |
| f.write('%d\n' % ftotalsize) |
| for fpath, fsize in filelist: |
| f.write('%s %d\n' % (fpath, fsize)) |
| # Copy them to the target |
| ret = subprocess.call("scp %s %s/* %s:%s" % (extraoptions, tmpdir, args.target, os.path.dirname(tmpscript)), shell=True) |
| if ret != 0: |
| raise DevtoolError('Failed to copy script to %s - rerun with -s to ' |
| 'get a complete error message' % args.target) |
| finally: |
| shutil.rmtree(tmpdir) |
| |
| # Now run the script |
| ret = exec_fakeroot(rd, 'tar cf - . | ssh %s %s \'sh %s %s %s %s\'' % (extraoptions, args.target, tmpscript, args.recipename, destdir, tmpfilelist), cwd=recipe_outdir, shell=True) |
| if ret != 0: |
| raise DevtoolError('Deploy failed - rerun with -s to get a complete ' |
| 'error message') |
| |
| logger.info('Successfully deployed %s' % recipe_outdir) |
| |
| files_list = [] |
| for root, _, files in os.walk(recipe_outdir): |
| for filename in files: |
| filename = os.path.relpath(os.path.join(root, filename), recipe_outdir) |
| files_list.append(os.path.join(destdir, filename)) |
| |
| return 0 |
| |
| def undeploy(args, config, basepath, workspace): |
| """Entry point for the devtool 'undeploy' subcommand""" |
| if args.all and args.recipename: |
| raise argparse_oe.ArgumentUsageError('Cannot specify -a/--all with a recipe name', 'undeploy-target') |
| elif not args.recipename and not args.all: |
| raise argparse_oe.ArgumentUsageError('If you don\'t specify a recipe, you must specify -a/--all', 'undeploy-target') |
| |
| extraoptions = '' |
| if args.no_host_check: |
| extraoptions += '-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' |
| if not args.show_status: |
| extraoptions += ' -q' |
| |
| args.target = args.target.split(':')[0] |
| |
| tmpdir = tempfile.mkdtemp(prefix='devtool') |
| try: |
| tmpscript = '/tmp/devtool_undeploy.sh' |
| shellscript = _prepare_remote_script(deploy=False, dryrun=args.dry_run, undeployall=args.all) |
| # Write out the script to a file |
| with open(os.path.join(tmpdir, os.path.basename(tmpscript)), 'w') as f: |
| f.write(shellscript) |
| # Copy it to the target |
| ret = subprocess.call("scp %s %s/* %s:%s" % (extraoptions, tmpdir, args.target, os.path.dirname(tmpscript)), shell=True) |
| if ret != 0: |
| raise DevtoolError('Failed to copy script to %s - rerun with -s to ' |
| 'get a complete error message' % args.target) |
| finally: |
| shutil.rmtree(tmpdir) |
| |
| # Now run the script |
| ret = subprocess.call('ssh %s %s \'sh %s %s\'' % (extraoptions, args.target, tmpscript, args.recipename), shell=True) |
| if ret != 0: |
| raise DevtoolError('Undeploy failed - rerun with -s to get a complete ' |
| 'error message') |
| |
| if not args.all and not args.dry_run: |
| logger.info('Successfully undeployed %s' % args.recipename) |
| return 0 |
| |
| |
| def register_commands(subparsers, context): |
| """Register devtool subcommands from the deploy plugin""" |
| parser_deploy = subparsers.add_parser('deploy-target', |
| help='Deploy recipe output files to live target machine', |
| description='Deploys a recipe\'s build output (i.e. the output of the do_install task) to a live target machine over ssh. By default, any existing files will be preserved instead of being overwritten and will be restored if you run devtool undeploy-target. 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.', |
| group='testbuild') |
| parser_deploy.add_argument('recipename', help='Recipe to deploy') |
| parser_deploy.add_argument('target', help='Live target machine running an ssh server: user@hostname[:destdir]') |
| parser_deploy.add_argument('-c', '--no-host-check', help='Disable ssh host key checking', action='store_true') |
| parser_deploy.add_argument('-s', '--show-status', help='Show progress/status output', action='store_true') |
| parser_deploy.add_argument('-n', '--dry-run', help='List files to be deployed only', action='store_true') |
| parser_deploy.add_argument('-p', '--no-preserve', help='Do not preserve existing files', action='store_true') |
| parser_deploy.add_argument('--no-check-space', help='Do not check for available space before deploying', action='store_true') |
| parser_deploy.set_defaults(func=deploy) |
| |
| parser_undeploy = subparsers.add_parser('undeploy-target', |
| help='Undeploy recipe output files in live target machine', |
| description='Un-deploys recipe output files previously deployed to a live target machine by devtool deploy-target.', |
| group='testbuild') |
| parser_undeploy.add_argument('recipename', help='Recipe to undeploy (if not using -a/--all)', nargs='?') |
| parser_undeploy.add_argument('target', help='Live target machine running an ssh server: user@hostname') |
| parser_undeploy.add_argument('-c', '--no-host-check', help='Disable ssh host key checking', action='store_true') |
| parser_undeploy.add_argument('-s', '--show-status', help='Show progress/status output', action='store_true') |
| parser_undeploy.add_argument('-a', '--all', help='Undeploy all recipes deployed on the target', action='store_true') |
| parser_undeploy.add_argument('-n', '--dry-run', help='List files to be undeployed only', action='store_true') |
| parser_undeploy.set_defaults(func=undeploy) |