cmd_offer.v

1//! `koh offer` — send the local saves to this machine's remote, and, with2//! `--builds`, publish a release built from them.34module cli56import json27import os8import src.build9import src.exchange10import src.fmt11import src.history12import src.machine13import src.release14import src.remote15import src.storage1617pub fn cmd_offer(raw []string) int {18	args := parse('offer', raw, Options{19		values: ['notes']20		flags:  ['json', 'builds']21	}) or { return usage_error(err.msg()) }22	// `--notes ""` is still `--notes`, so the flag's presence decides, not its23	// value; and offer takes no arguments at all.24	if args.positional.len > 0 {25		return usage_error('offer takes no arguments, not "${args.positional_at(0)}"')26	}27	if args.value_or_none('notes') != none && !args.flag('builds') {28		return usage_error('--notes belongs to --builds')29	}30	store := open_store() or { return refuse(args.json(), err.msg()) }31	defer {32		store.close()33	}34	source := exchange.source_of(store)35	if source != '' {36		host := exchange.source_host(source)37		if !exchange.signed_in_to(host) {38			return refuse(args.json(), 'this repo came from ${source}, which is read-only. Sign in with "koh remote ${host}" if it\'s yours.')39		}40		// Signed in since it was stolen: the bucket's saves come in first, by the steal a person41		// would run, so a clash is asked about on a terminal and refused without one.42		mut bucket := this_machine_backend() or { return refuse(args.json(), err.msg()) }43		mut options := exchange.StealOptions{}44		if on_terminal(args.json()) {45			options.guide = guide_steal46		}47		report := exchange.steal(store, mut bucket, options) or {48			if err is exchange.ClashError {49				return refuse(args.json(), '${err.paths.join(', ')} changed on both machines — run "koh steal" to choose, then offer')50			}51			return refuse(args.json(), err.msg())52		}53		exchange.forget_source(store) or { return refuse(args.json(), err.msg()) }54		if !args.json() {55			ok('signed in to ${host}: this repo now syncs with your bucket')56			if report.previous_head != '' {57				note('to undo the combine: koh load ${report.previous_head}')58			}59			note_kept_versions(report)60			warn_flagged(report.flagged)61		}62	}63	mut backend := this_machine_backend() or { return refuse(args.json(), err.msg()) }64	if args.flag('builds') {65		return offer_builds(args, store, mut backend)66	}67	report := exchange.offer(store, mut backend) or { return refuse(args.json(), err.msg()) }68	if args.json() {69		emit_json(json2.encode(OfferedJson{70			repo:    report.repo71			saves:   report.saves72			objects: report.objects73			events:  report.events74			head:    report.head75		}))76		return 077	}78	if report.saves + report.objects + report.events == 0 {79		ok('the remote already has everything from [${report.head}]')80		return 081	}82	ok('offered ${report.saves} saves · ${report.objects} objects · ${report.events} events to "${report.repo}"')83	note('remote head is now [${report.head}]')84	return 085}8687// offer_builds is `koh offer --builds`: the history goes up first, then a88// release built from the working tree. Unsaved changes are refused, so the89// published files always belong to a save that is on the remote.90fn offer_builds(args Args, store &storage.Store, mut backend remote.Backend) int {91	head := history.head(store) or { return refuse(args.json(), exchange.no_saves) }92	if exchange.dirty(store, head) or { true } {93		return refuse(args.json(), 'save or checkpoint first — a release is built from a save')94	}95	report := exchange.offer(store, mut backend) or { return refuse(args.json(), err.msg()) }96	config := build.read_config(store.root) or { return refuse(args.json(), err.msg()) }97	// Not `version`: that is the koh binary's own version, in this module.98	release_version := build.project_version(store.root) or {99		return refuse(args.json(), err.msg())100	}101	notes := args.value('notes')102	release.check_notes(notes) or { return refuse(args.json(), err.msg()) }103	published := release.publish(store, mut backend, report.repo, config, release_version, notes) or {104		return refuse(args.json(), err.msg())105	}106	if args.json() {107		emit_json(json2.encode(PublishedJson{108			repo:    report.repo109			version: published.version110			files:   published.files.map(PublishedFileJson{111				platform: it.platform112				name:     it.name113				size:     it.size114				blake3:   it.blake3115			})116		}))117		return 0118	}119	for file in published.files {120		ok('${file.platform}  ${file.name}  (${fmt.human_bytes(file.size)})')121	}122	ok('published ${published.version} of "${report.repo}" from [${report.head}]')123	return 0124}125126// this_machine_backend builds the backend from the machine's saved remote.127pub fn this_machine_backend() !remote.Backend {128	settings := machine.load_remote()!129	if settings.kind == machine.kind_folder {130		// Only `koh remote` creates the folder. Missing later, it is usually a131		// disk or share that is not mounted, and a stand-in folder would take132		// saves the other machine never sees.133		if !os.is_dir(settings.path) {134			return error('the remote folder ${settings.path} is not there — is its disk mounted? ("koh remote" changes it)')135		}136		return remote.new_folder(settings.path)!137	}138	credentials := machine.load_credentials()!139	return remote.new_s3(settings.endpoint, settings.bucket, settings.region,140		credentials.access_key, credentials.secret_key)!141}142143// auto_offer runs after every save and checkpoint. A remote that is not set up,144// or not reachable, must never fail the save: it prints one line and stops.145// `quiet` is for `--json`, where that line would land inside the document.146pub fn auto_offer(store &storage.Store, quiet bool) {147	if !machine.has_remote() {148		return149	}150	// A stolen repo rides its source: a save in it is local work and nothing else. The upgrade is151	// the explicit `steal` or `offer`, which bring the bucket in *before* the source is dropped.152	if exchange.source_of(store) != '' {153		return154	}155	mut backend := this_machine_backend() or {156		if !quiet {157			note('not offered: ${err.msg()}')158		}159		return160	}161	report := exchange.offer(store, mut backend) or {162		if !quiet {163			note('not offered: ${err.msg()}')164		}165		return166	}167	if !quiet && report.saves + report.objects + report.events > 0 {168		note('offered to "${report.repo}" — ${report.saves} saves · ${report.objects} objects')169	}170}171172struct OfferedJson {173	repo    string174	saves   int175	objects int176	events  int177	head    string178}179180struct PublishedFileJson {181	platform string182	name     string183	size     i64184	blake3   string185}186187struct PublishedJson {188	repo    string189	version string190	files   []PublishedFileJson191}