From: Alexander Kanavin <a...@linutronix.de> For the rationale and design guidelines please see this message: https://lists.openembedded.org/g/openembedded-architecture/message/1913
Left out for now but will be done later: - tighten the terminology: 'build' and 'configuration' are each used to refer to several distinct things, and should be replaced by specific, unambigous terms - tests - documentation - official configuration repository 1. If you don't know where to start, list available configurations, and pick one: === alex@Zen2:/srv/work/alex/bitbake$ bin/bitbake-setup list Default parameter values are in /home/alex/.bitbake-setup/config - adjust as needed. Fetching configuration repository git://github.com/kanavin/bitbake-setup-configurations.git;protocol=https;branch=main;rev=main into /home/alex/.bitbake-setup/configurations Available configurations: poky-alex Poky reference distribution, with alex fixes poky-kirkstone Poky reference distribution, kirkstone long term support release (supported until April 2026) poky-ng Poky-ng configuration: like poky but built from individual repositories === 2. Then build is initialized this way: === alex@Zen2:/srv/work/alex/bitbake$ bin/bitbake-setup init poky-ng Default parameter values are in /home/alex/.bitbake-setup/config - adjust as needed. Initializing a poky-ng build in /home/alex/builds/poky-ng Fetching configuration repository git://github.com/kanavin/bitbake-setup-configurations.git;protocol=https;branch=main;rev=main into /home/alex/.bitbake-setup/configurations Fetching layer/tool repository bitbake into /home/alex/builds/poky-ng/layers/bitbake Fetching layer/tool repository openembedded-core into /home/alex/builds/poky-ng/layers/openembedded-core Fetching layer/tool repository meta-yocto into /home/alex/builds/poky-ng/layers/meta-yocto Fetching layer/tool repository yocto-docs into /home/alex/builds/poky-ng/layers/yocto-docs Setting up configuration in /home/alex/builds/poky-ng/build-default Configuration summary: This is the default build configuration for the openembedded-core layer. Additional information is in /home/alex/builds/poky-ng/build-default/conf/conf-notes.txt Run /home/alex/builds/poky-ng/build-default/build.sh to execute the default build targets for this configuration. Source the environment using '. /home/alex/builds/poky-ng/build-default/init-build-env' to run builds from the command line. The bitbake build configuration (local.conf, bblayers.conf and more) can be found in /home/alex/builds/poky-ng/build-default/conf === Note: 'init' sub-command can also take a path or a URL with a configuration file directly. You can see how those files look like here: https://github.com/kanavin/bitbake-setup-configurations 3. The above message refers to a one-liner shell script that would build the targets specified in the chosen configuration: === alex@Zen2:/srv/work/alex/bitbake$ cat /home/alex/builds/poky-alex/build-gadget/build.sh . /home/alex/builds/poky-alex/build-gadget/init-build-env && bitbake core-image-minimal === 4. You should also source the environment, and then subsequent status/update commands will not require a parameter telling bitbake-setup where the initialized build is. 5. To check if the build configuration needs to be updated, run: === Default parameter values are in /home/alex/.bitbake-setup/config - adjust as needed. Fetching configuration repository git://github.com/kanavin/bitbake-setup-configurations.git;protocol=https;branch=main;rev=main into /home/alex/.bitbake-setup/configurations Configuration in /home/alex/builds/poky-ng/ has not changed. === If the configuration has changed, you will see the difference: === alex@Zen2:/srv/work/alex/bitbake$ bin/bitbake-setup status ... Top level configuration in /home/alex/builds/poky-alex has changed: --- /home/alex/builds/poky-alex/config/poky-alex.conf.json 2024-12-16 11:43:24.077446096 +0100 +++ /home/alex/builds/poky-alex/config-tmp-asoubw5u/poky-alex.conf.json 2024-12-16 11:47:43.237104405 +0100 @@ -7,7 +7,7 @@ "uri": "git://git.yoctoproject.org/poky-contrib" } }, - "rev": "akanavin/sstate-for-all" + "rev": "akanavin/bitbake-setup-testing" }, "path": "poky" } === If the configuration has not changed, but layer revisions referred to it have (for example if the configuration specifies a tip of a branch), you will see that too: === alex@Zen2:/srv/work/alex/bitbake$ bin/bitbake-setup status ... Layer repository git://git.yoctoproject.org/poky-contrib checked out into /home/alex/builds/poky-alex/layers/poky updated revision akanavin/sstate-for-all from 6b842ba55f996b27c900e3de78ceac8cb3b1c492 to aeb73e29379fe6007a8adc8d94c1ac18a93e68de === 6. If the configuration has changed, you can bring it in sync with: === alex@Zen2:/srv/work/alex/bitbake$ bin/bitbake-setup update ~/builds/poky-alex/ Default parameter values are in /home/alex/.bitbake-setup/config - adjust as needed. Fetching configuration repository git://github.com/kanavin/bitbake-setup-configurations.git;protocol=https;branch=main;rev=main into /home/alex/.bitbake-setup/configurations Layer repository git://git.yoctoproject.org/poky-contrib checked out into /home/alex/builds/poky-alex/layers/poky updated revision akanavin/bitbake-setup-testing from d174acad934f8ad1fe303abc5705733e15542859 to a3d2ee10045f8c1151d680ad97994c5d6cf51ece Fetching layer/tool repository poky into /home/alex/builds/poky-alex/layers/poky Setting up configuration in /home/alex/builds/poky-alex/build-gadget Existing bitbake congfiguration directory renamed to /home/alex/builds/poky-alex/build-gadget/conf-backup.20241216115007 The bitbake configuration has changed: diff -uNr /home/alex/builds/poky-alex/build-gadget/conf-backup.20241216115007/local.conf /home/alex/builds/poky-alex/build-gadget/conf/local.conf --- /home/alex/builds/poky-alex/build-gadget/conf-backup.20241216115007/local.conf 2024-12-16 11:47:51.865043102 +0100 +++ /home/alex/builds/poky-alex/build-gadget/conf/local.conf 2024-12-16 11:50:07.811942847 +0100 @@ -287,5 +287,3 @@ # track the version of this file when it was generated. This can safely be ignored if # this doesn't mean anything to you. CONF_VERSION = "2" - -TCLIBC = "musl" Configuration summary: This is the default build configuration for the Poky reference distribution. Additional information is in /home/alex/builds/poky-alex/build-gadget/conf/conf-notes.txt Run /home/alex/builds/poky-alex/build-gadget/build.sh to execute the default build targets for this configuration. Source the environment using '. /home/alex/builds/poky-alex/build-gadget/init-build-env' to run builds from the command line. The bitbake build configuration (local.conf, bblayers.conf and more) can be found in /home/alex/builds/poky-alex/build-gadget/conf === Note that it will also rename/preserve the existing build/conf directory, and print changes in bitbake configuration (diff of content of build/conf/) if that has changed. I can't at the moment think of anything more clever that is also not much more brittle or complex to implement, but open to suggestions. 7. To make it easier to review the code, please also review the data it's operating on: === alex@Zen2:/srv/work/alex/bitbake$ ls ~/.bitbake-setup/ cache configurations downloads alex@Zen2:/srv/work/alex/bitbake$ ls ~/builds/poky-alex/ build config config-upstream.json layers === This commit includes a fix by Ryan Eatmon <reat...@ti.com>: https://github.com/kanavin/bitbake/pull/1 Signed-off-by: Alexander Kanavin <a...@linutronix.de> --- bin/bitbake-setup | 404 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 404 insertions(+) create mode 100755 bin/bitbake-setup diff --git a/bin/bitbake-setup b/bin/bitbake-setup new file mode 100755 index 000000000..80a965660 --- /dev/null +++ b/bin/bitbake-setup @@ -0,0 +1,404 @@ +#!/usr/bin/env python3 + +# +# SPDX-License-Identifier: GPL-2.0-only +# + +import logging +import os +import sys +import argparse +import warnings +import json +import shutil +import time +import stat +import tempfile +import configparser +import datetime + +bindir = os.path.abspath(os.path.dirname(__file__)) +topdir = os.path.dirname(bindir) +sys.path[0:0] = [os.path.join(topdir, 'lib')] + +import bb.msg +import bb.process + +logger = bb.msg.logger_create('bitbake-setup', sys.stdout) + +def init_bb_cache(args): + dldir = os.path.join(args.cache_dir, 'downloads') + bb_cachedir = os.path.join(args.cache_dir, 'cache') + + d = bb.data.init() + d.setVar("DL_DIR", dldir) + d.setVar("BB_CACHEDIR", bb_cachedir) + d.setVar("__BBSRCREV_SEEN", "1") + if args.no_network: + d.setVar("BB_SRCREV_POLICY", "cache") + bb.fetch.fetcher_init(d) + return d + +def get_config_name(config): + return os.path.basename(config).split('.')[0] + +def copy_and_commit_config(config_path, dest_config_dir): + shutil.copy(config_path, dest_config_dir) + + bb.process.run("git -C {} add .".format(dest_config_dir)) + bb.process.run("git -C {} commit -a -m 'Configuration at {}'".format(dest_config_dir, time.asctime())) + +def _write_layer_list(dest, repodirs): + layers = [] + for r in repodirs: + for root, dirs, files in os.walk(os.path.join(dest,r)): + if os.path.basename(root) == 'conf' and 'layer.conf' in files: + layers.append(os.path.relpath(os.path.dirname(root), dest)) + layers_f = os.path.join(dest, ".oe-layers.json") + with open(layers_f, 'w') as f: + json.dump({"version":"1.0","layers":layers}, f, sort_keys=True, indent=4) + +def checkout_layers(layers, layerdir, d): + repodirs = [] + oesetupbuild = None + for r_name in layers: + r_data = layers[r_name] + repodir = r_data["path"] + repodirs.append(repodir) + + r_remote = r_data['git-remote'] + rev = r_remote['rev'] + remotes = r_remote['remotes'] + + for remote in remotes: + type,host,path,user,pswd,params = bb.fetch.decodeurl(remotes[remote]["uri"]) + fetchuri = bb.fetch.encodeurl(('git',host,path,user,pswd,params)) + print("Fetching layer/tool repository {} into {}".format(r_name, os.path.join(layerdir,repodir))) + fetcher = bb.fetch.Fetch(["{};protocol={};rev={};nobranch=1;destsuffix={}".format(fetchuri,type,rev,repodir)], d) + do_fetch(fetcher, layerdir) + + if os.path.exists(os.path.join(layerdir, repodir, 'scripts/oe-setup-build')): + oesetupbuild = os.path.join(layerdir, repodir, 'scripts/oe-setup-build') + + _write_layer_list(layerdir, repodirs) + + if oesetupbuild: + oesetupbuild_symlink = os.path.join(layerdir, 'setup-build') + if os.path.exists(oesetupbuild_symlink): + os.remove(oesetupbuild_symlink) + os.symlink(os.path.relpath(oesetupbuild,layerdir),oesetupbuild_symlink) + +def setup_build(name, config, layerdir, topbuilddir): + builddir = os.path.join(topbuilddir, "build-{}".format(name)) + print("==============================") + print("Setting up configuration {} in {}".format(name, builddir)) + + template = config.get("oe-template") + if not template: + print("Configuration does not contain a reference to a build template; please use oe-init-build-env manually.") + return + oesetupbuild = os.path.join(layerdir, 'setup-build') + if not os.path.exists(oesetupbuild): + print("Cannot complete setting up a build directory as oe-setup-build was not found in any layers; please use oe-init-build-env manually.") + return + + confdir = os.path.join(builddir, 'conf') + backup_confdir = confdir + "-backup.{}".format(time.strftime("%Y%m%d%H%M%S")) + if os.path.exists(confdir): + os.rename(confdir, backup_confdir) + bb.process.run("{} setup -c {} -b {} --no-shell".format(oesetupbuild, template, builddir)) + + build_script = os.path.join(builddir, "build.sh") + init_script = os.path.join(builddir, "init-build-env") + targets = " && ".join(config["targets"]) + shell = os.path.basename(os.environ.get("SHELL","bash")) + with open(build_script,'w') as f: + f.write("#!/usr/bin/env {}\n. {} && {}\n".format(shell, init_script, targets)) + st = os.stat(build_script) + os.chmod(build_script, st.st_mode | stat.S_IEXEC) + + fragments = config.get("oe-fragments") + if fragments: + for f in fragments: + bb.process.run("{} -c '. {} && bitbake-config-build enable-fragment {}'".format(shell, init_script, f)) + + if os.path.exists(backup_confdir): + config_diff = get_diff(backup_confdir, confdir) + if config_diff: + print("Existing bitbake configuration directory renamed to {}".format(backup_confdir)) + print("The bitbake configuration has changed:") + print(config_diff) + else: + shutil.rmtree(backup_confdir) + + with open(os.path.join(builddir,'conf/conf-summary.txt')) as f: + print("Configuration summary:\n{}\nAdditional information is in {}\n".format(f.read(), os.path.join(builddir,'conf/conf-notes.txt'))) + print("Run {} to execute the default build targets for this configuration.".format(build_script)) + print("Source the environment using '. {}' to run builds from the command line.".format(init_script)) + print("The bitbake build configuration (local.conf, bblayers.conf and more) can be found in {}/conf".format(builddir)) + +def get_registry_config(registry_path, id, dest_dir): + for root, dirs, files in os.walk(registry_path): + for f in files: + if f.endswith('.conf.json') and id == get_config_name(f): + shutil.copy(os.path.join(root, f), dest_dir) + return f + raise Exception("Unable to find {} in available configurations; use 'list' sub-command to see what is available".format(id)) + +def obtain_config(upstream_config, dest_dir, args, d): + if upstream_config["type"] == 'local': + shutil.copy(upstream_config['path'], dest_dir) + basename = os.path.basename(upstream_config['path']) + elif upstream_config["type"] == 'network': + bb.process.run("wget {}".format(upstream_config["uri"]), cwd=dest_dir) + basename = os.path.basename(upstream_config['uri']) + elif upstream_config["type"] == 'registry': + registry_path = update_registry(upstream_config["registry"], args.cache_dir, d) + basename = get_registry_config(registry_path, upstream_config["id"], dest_dir) + else: + raise Exception("Unknown configuration type: {}".format(upstream_config["type"])) + return os.path.join(dest_dir, basename) + +def update_build_config(config_path, confdir, topbuilddir, layerdir, d, update_layers_only=False): + build_configs = json.load(open(config_path))["configuration"]["bitbake-setup"] + layer_config = json.load(open(config_path))["sources"] + if not update_layers_only: + copy_and_commit_config(config_path, confdir) + checkout_layers(layer_config, layerdir, d) + for build_name, build_config in build_configs.items(): + setup_build(build_name, build_config, layerdir, topbuilddir) + +def init_config(args, d): + stdout = sys.stdout + def handle_task_progress(event, d): + rate = event.rate if event.rate else '' + progress = event.progress if event.progress > 0 else 0 + print("{}% {} ".format(progress, rate), file=stdout, end='\r') + + config_name = get_config_name(args.config) + topbuilddir = os.path.join(os.path.abspath(args.build_dir_prefix), config_name) + if os.path.exists(topbuilddir): + print("Build already initialized in {}\nUse 'bitbake-setup status' to check if it needs to be updated or 'bitbake-setup update' to perform the update.".format(topbuilddir)) + return + + print("Initializing a {} build in {}".format(config_name, topbuilddir)) + + if os.path.exists(args.config): + upstream_config = {'type':'local','path':os.path.abspath(args.config)} + elif args.config.startswith("http://";) or args.config.startswith("https://";): + upstream_config = {'type':'network','uri':args.config} + else: + upstream_config = {'type':'registry','registry':args.registry,'id':args.config} + + os.makedirs(topbuilddir) + + with open(os.path.join(topbuilddir, "config-upstream.json"),'w') as s: + json.dump(upstream_config, s, sort_keys=True, indent=4) + + confdir = os.path.join(topbuilddir, "config") + layerdir = os.path.join(topbuilddir, "layers") + + os.makedirs(confdir) + os.makedirs(layerdir) + + bb.process.run("git -C {} init -b main".format(confdir)) + bb.process.run("git -C {} commit --allow-empty -m 'Initial commit'".format(confdir)) + + bb.event.register("bb.build.TaskProgress", handle_task_progress, data=d) + + with tempfile.TemporaryDirectory(dir=topbuilddir, prefix='config-tmp-') as tmpdirname: + config_path = obtain_config(upstream_config, tmpdirname, args, d) + update_build_config(config_path, confdir, topbuilddir, layerdir, d) + + bb.event.remove("bb.build.TaskProgress", None) + +def get_diff(file1, file2): + try: + bb.process.run('diff -uNr {} {}'.format(file1, file2)) + except bb.process.ExecutionError as e: + if e.exitcode == 1: + return e.stdout + else: + raise e + return None + +def are_layers_changed(layers, layerdir, d): + changed = False + for r_name in layers: + r_data = layers[r_name] + repodir = r_data["path"] + + r_remote = r_data['git-remote'] + rev = r_remote['rev'] + remotes = r_remote['remotes'] + + for remote in remotes: + type,host,path,user,pswd,params = bb.fetch.decodeurl(remotes[remote]["uri"]) + fetchuri = bb.fetch.encodeurl(('git',host,path,user,pswd,params)) + fetcher = bb.fetch.FetchData("{};protocol={};rev={};nobranch=1;destsuffix={}".format(fetchuri,type,rev,repodir), d) + upstream_revision = fetcher.method.latest_revision(fetcher, d, 'default') + rev_parse_result = bb.process.run('git -C {} rev-parse HEAD'.format(os.path.join(layerdir, repodir))) + local_revision = rev_parse_result[0].strip() + if upstream_revision != local_revision: + changed = True + print('Layer repository {} checked out into {} updated revision {} from {} to {}'.format(remotes[remote]["uri"], os.path.join(layerdir, repodir), rev, local_revision, upstream_revision)) + + return changed + +def build_status(args, d, update=False): + topbuilddir = args.build_dir + + confdir = os.path.join(topbuilddir, "config") + layerdir = os.path.join(topbuilddir, "layers") + + upstream_config = json.load(open(os.path.join(topbuilddir, "config-upstream.json"))) + + with tempfile.TemporaryDirectory(dir=topbuilddir, prefix='config-tmp-') as tmpdirname: + current_config_path = obtain_config(upstream_config, tmpdirname, args, d) + + build_config_path = os.path.join(confdir, os.path.basename(current_config_path)) + config_diff = get_diff(build_config_path, current_config_path) + if config_diff: + print('Top level configuration in {} has changed:\n{}'.format(topbuilddir, config_diff)) + if update: + update_build_config(current_config_path, confdir, topbuilddir, layerdir, d) + return + + if are_layers_changed(json.load(open(build_config_path))["sources"], layerdir, d): + if update: + update_build_config(build_config_path, confdir, topbuilddir, layerdir, d, update_layers_only=True) + return + + print("Configuration in {} has not changed.".format(topbuilddir)) + +def build_update(args, d): + build_status(args, d, update=True) + +def do_fetch(fetcher, dir): + # git fetcher simply dumps git output to stdout; in bitbake context that is redirected to temp/log.do_fetch + # and we need to set up smth similar here + fetchlogdir = os.path.join(dir, 'logs') + os.makedirs(fetchlogdir, exist_ok=True) + fetchlog = os.path.join(fetchlogdir, 'fetch_log.{}'.format(datetime.datetime.now().strftime("%Y%m%d%H%M%S"))) + with open(fetchlog, 'a') as f: + oldstdout = sys.stdout + sys.stdout = f + fetcher.download() + fetcher.unpack(dir) + sys.stdout = oldstdout + +def update_registry(registry, cachedir, d): + registrydir = 'configurations' + full_registrydir = os.path.join(cachedir, registrydir) + print("Fetching configuration repository {} into {}".format(registry, full_registrydir)) + fetcher = bb.fetch.Fetch(["{};destsuffix={}".format(registry, registrydir)], d) + do_fetch(fetcher, cachedir) + return full_registrydir + +def list_registry(registry_path): + print("\nAvailable configurations:") + for root, dirs, files in os.walk(registry_path): + for f in files: + if f.endswith('.conf.json'): + config_name = get_config_name(f) + config_desc = json.load(open(os.path.join(root, f)))["description"] + print("{}\t{}".format(config_name, config_desc)) + +def list_configs(args, d): + registry_path = update_registry(args.registry, args.cache_dir, d) + list_registry(registry_path) + +def default_tool_config_path(): + return os.environ.get('BITBAKE_SETUP_CONFIG') or os.path.join(os.path.expanduser('~'), '.bitbake-setup', 'config') + +def write_tool_config(force_overwrite): + config_path = default_tool_config_path() + if not os.path.exists(config_path) or force_overwrite: + config = configparser.ConfigParser() + config['default'] = {'registry':'git://github.com/kanavin/bitbake-setup-configurations.git;protocol=https;branch=main;rev=main', + 'cache-dir':os.path.join(os.path.expanduser('~'), '.bitbake-setup'), + 'build-dir-prefix':os.path.join(os.path.expanduser('~'), 'builds')} + os.makedirs(os.path.dirname(config_path), exist_ok=True) + with open(config_path, 'w') as configfile: + config.write(configfile) + +def load_tool_config(): + # This creates a new config file if it does not yet exist + write_tool_config(force_overwrite=False) + + config_path = default_tool_config_path() + config = configparser.ConfigParser() + print('Default parameter values are in {} - adjust as needed.\n'.format(config_path)) + config.read([config_path]) + return config + +def get_build_dir(): + bbpath = os.environ.get('BBPATH') + if bbpath: + build_dir = os.path.dirname(bbpath.split(':')[0]) + if os.path.exists(os.path.join(build_dir,'config-upstream.json')): + return build_dir + return None + +def main(): + config = load_tool_config() + + parser = argparse.ArgumentParser( + description="BitBake setup utility", + epilog="Use %(prog)s <subcommand> --help to get help on a specific command" + ) + parser.add_argument('-d', '--debug', help='Enable debug output', action='store_true') + parser.add_argument('-q', '--quiet', help='Print only errors', action='store_true') + parser.add_argument('--color', choices=['auto', 'always', 'never'], default='auto', help='Colorize output (where %(metavar)s is %(choices)s)', metavar='COLOR') + parser.add_argument('--registry', default=config['default']['registry'], help='Git repository with configuration files (in bitbake SRC_URI format), default is %(default)s') + parser.add_argument('--cache-dir', default=config['default']['cache-dir'], help='Directory where downloaded configurations and layers are cached for reproducibility and offline builds, default is %(default)s') + parser.add_argument('--no-network', action='store_true', help='Do not check whether configuration repositories and layer repositories have been updated; use only the local cache.') + + subparsers = parser.add_subparsers() + + parser_init = subparsers.add_parser('init', help='Initialize a build from a configuration') + parser_init.add_argument('config', help="path/URL/id to a configuration file, use 'list' command to get available ids") + parser_init.add_argument('--build-dir-prefix', help="Directory prefix under which the build directory should be created and initialized, default is %(default)s", default=config['default']['build-dir-prefix']) + parser_init.set_defaults(func=init_config) + + build_dir = get_build_dir() + + parser_status = subparsers.add_parser('status', help='Check if the build needs to be synchronized with configuration') + if build_dir: + parser_status.add_argument('--build-dir', default=build_dir, help="Path to the build, default is %(default)s via BBPATH") + else: + parser_status.add_argument('--build-dir', required=True, help="Path to the build") + parser_status.set_defaults(func=build_status) + + parser_update = subparsers.add_parser('update', help='Update a build to be in sync with configuration') + if build_dir: + parser_update.add_argument('--build-dir', default=build_dir, help="Path to the build, default is %(default)s via BBPATH") + else: + parser_update.add_argument('--build-dir', required=True, help="Path to the build") + parser_update.set_defaults(func=build_update) + + parser_list = subparsers.add_parser('list', help='List available configurations') + parser_list.set_defaults(func=list_configs) + + args = parser.parse_args() + + logging.basicConfig(stream=sys.stdout) + if args.debug: + logger.setLevel(logging.DEBUG) + elif args.quiet: + logger.setLevel(logging.ERROR) + + # Need to re-run logger_create with color argument + # (will be the same logger since it has the same name) + bb.msg.logger_create('bitbake-setup', output=sys.stdout, + color=args.color, + level=logger.getEffectiveLevel()) + + d = init_bb_cache(args) + if 'func' in args: + args.func(args, d) + else: + from argparse import Namespace + parser.print_help() + +main() -- 2.39.5
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