cli_test.v

1module tests23import net4import net.http5import os6import time78const root = @VMODROOT9const binary = os.join_path(root, 'build', 'koh3')1011struct Result {12mut:13	code int14	out  string15	err  string16}1718fn testsuite_begin() {19	os.mkdir_all(os.join_path(root, 'build')) or { panic(err) }20	build := os.execute('v -o ${q(binary)} ${q(os.join_path(root, 'src', 'koh3.v'))}')21	if build.exit_code != 0 {22		panic('could not build koh3: ${build.output}')23	}24}2526fn q(s string) string {27	return "'${s.replace("'", "'\\''")}'"28}2930fn temp_repo(name string) string {31	dir := os.join_path(os.temp_dir(), 'koh3-cli-${name}-${time.now().unix_nano()}')32	os.mkdir_all(dir) or { panic(err) }33	return dir34}3536fn run(repo string, args ...string) Result {37	home := temp_repo('home')38	defer { os.rmdir_all(home) or {} }39	return run_home(repo, home, ...args)40}4142fn run_home(repo string, home string, args ...string) Result {43	stamp := '${os.getpid()}-${time.now().unix_nano()}'44	base := os.join_path(os.temp_dir(), 'koh3-cli-${stamp}')45	out_path := '${base}.out'46	err_path := '${base}.err'47	code_path := '${base}.code'48	mut command := 'HOME=${q(home)} ${q(binary)}'49	for arg in args {50		command += ' ${q(arg)}'51	}52	shell := 'cd ${q(repo)} && ${command} </dev/null >${q(out_path)} 2>${q(err_path)}; printf "%s" \$? >${q(code_path)}'53	result := os.execute(shell)54	if result.exit_code != 0 {55		panic('could not run test command: ${result.output}')56	}57	code := os.read_file(code_path) or { panic(err) }58	out := os.read_file(out_path) or { '' }59	err := os.read_file(err_path) or { '' }60	os.rm(out_path) or {}61	os.rm(err_path) or {}62	os.rm(code_path) or {}63	return Result{64		code: code.int()65		out:  out66		err:  err67	}68}6970fn run_pty_home(repo string, home string, answers []string, args ...string) Result {71	stamp := '${os.getpid()}-${time.now().unix_nano()}'72	transcript := os.join_path(os.temp_dir(), 'koh3-pty-${stamp}.txt')73	script_path := os.join_path(os.temp_dir(), 'koh3-pty-${stamp}.exp')74	defer {75		os.rm(transcript) or {}76		os.rm(script_path) or {}77	}78	mut script := 'log_file -noappend {${transcript}}\nset timeout 20\nspawn -noecho env {HOME=${home}} NO_COLOR=1 {${binary}}'79	for arg in args {80		script += ' {${arg}}'81	}82	script += '\n'83	// Each answer waits for its prompt: typed ahead, it would be flushed when the pager takes the84	// terminal raw. `close` ends a run that is still asking, so `wait` can never hang the suite.85	for answer in answers {86		script += 'expect -re {› \$|message: \$|confirm: \$|\\[y/N\\] \$|q quit}\nsend -- "${answer}\\r"\n'87	}88	script += 'expect eof\ncatch close\nset status [wait]\nexit [lindex $status 3]\n'89	os.write_file(script_path, script) or { panic(err) }90	result := os.execute('cd ${q(repo)} && expect -f ${q(script_path)}')91	return Result{92		code: result.exit_code93		out:  os.read_file(transcript) or { '' }94		err:  result.output95	}96}9798fn init_repo(repo string) {99	r := run(repo, 'init')100	assert r.code == 0101	assert os.exists(os.join_path(repo, '.koh'))102	assert os.exists(os.join_path(repo, '.kohignore'))103}104105fn write(repo string, path string, text string) {106	full := os.join_path(repo, path)107	os.mkdir_all(os.dir(full)) or { panic(err) }108	os.write_file(full, text) or { panic(err) }109}110111fn read_json_has(text string, key string) {112	if !text.contains(key) {113		panic('missing JSON key ${key}: ${text}')114	}115}116117fn test_init_and_usage() {118	dir := temp_repo('init')119	defer { os.rmdir_all(dir) or {} }120	r := run(dir, 'init', '--json')121	assert r.code == 0122	read_json_has(r.out, 'repo')123	read_json_has(r.out, 'ignore_created')124	assert run(dir, 'init').code == 1125	assert run(dir, 'unknown-command').code == 2126	assert run(dir, 'unknown-command').err.contains('unknown command')127	// An agent asking for JSON gets JSON for a usage mistake too, exit 2.128	for args in [['unknown-command', '--json'], ['save', '--json'], ['save', 'x', '--nope', '--json']] {129		r2 := run(dir, ...args)130		assert r2.code == 2131		assert r2.out == ''132		assert r2.err.starts_with('{"error":'), r2.err133	}134}135136// The help screen is commands and plain words: every flag lives in `koh man`.137// this_platform is the platform name for the machine the tests run on, so a138// build test does not depend on which machine that is.139fn this_platform() string {140	machine := os.uname().machine141	arch := if machine in ['arm64', 'aarch64'] { 'aarch64' } else { 'x86_64' }142	return '${os.user_os()}-${arch}'143}144145// `koh build` builds with `koh.build`: the version and platform fill the output146// path, and each artifact is printed with its size.147fn test_build_builds_the_named_platforms() {148	dir := temp_repo('build_ok')149	defer { os.rmdir_all(dir) or {} }150	init_repo(dir)151	host := this_platform()152	write(dir, 'VERSION', '1.2.3\n')153	write(dir, 'koh.build', 'command = mkdir -p out && printf built > out/demo-1.2.3-${host}154output = out/demo-{version}-{platform}155platforms = ${host}156')157	one := run(dir, 'build')158	assert one.code == 0, one.err159	assert one.out.contains('version 1.2.3')160	assert one.out.contains('out/demo-1.2.3-${host}')161	assert os.exists(os.join_path(dir, 'out/demo-1.2.3-${host}'))162163	// --platform picks one, --all takes every platform the file names.164	write(dir, 'koh.build', 'command = mkdir -p out && printf m > out/demo-macos-aarch64 && printf l > out/demo-linux-aarch64165output = out/demo-{platform}166platforms = macos-aarch64, linux-aarch64167')168	all := run(dir, 'build', '--all', '--json')169	assert all.code == 0, all.err170	assert all.out.contains('"platform":"macos-aarch64"')171	assert all.out.contains('"platform":"linux-aarch64"')172	assert os.exists(os.join_path(dir, 'out/demo-linux-aarch64'))173	picked := run(dir, 'build', '--platform', 'linux-aarch64')174	assert picked.code == 0, picked.err175	assert picked.out.contains('out/demo-linux-aarch64')176	assert !picked.out.contains('out/demo-macos-aarch64')177}178179// The item's exit check, as a test: `koh build` builds Koh 3 itself with the180// real toolchain, in a copy, and the binary it produces runs.181// `koh update` refuses a command line that cannot be answered: JSON cannot carry182// the question, and a stray argument is a mistake. Both are settled before any183// source is read, so no network is needed here.184fn test_update_refuses_a_command_line_it_cannot_answer() {185	dir := temp_repo('update_args')186	defer { os.rmdir_all(dir) or {} }187	init_repo(dir)188	json_without_yes := run(dir, 'update', '--json')189	assert json_without_yes.code == 2190	assert json_without_yes.err.contains('needs --yes')191	assert run(dir, 'update', 'extra').code == 2192}193194fn test_build_builds_koh_itself() {195	dir := temp_repo('selfbuild')196	defer { os.rmdir_all(dir) or {} }197	// Only what a build reads: the copy needs no history and no archive.198	for item in ['src', 'vendor', 'docs', 'v.mod', 'VERSION'] {199		os.cp_all(os.join_path(root, item), os.join_path(dir, item), true) or { panic(err) }200	}201	write(dir, 'koh.build', 'command = mkdir -p zig-out/bin && v -o zig-out/bin/koh3 src/koh3.v202output = zig-out/bin/koh3203platforms = ${this_platform()}204')205	init_repo(dir)206	built := run(dir, 'build')207	assert built.code == 0, built.err208	assert built.out.contains('zig-out/bin/koh3')209	fresh := os.join_path(dir, 'zig-out/bin/koh3')210	assert os.exists(fresh)211	version := os.read_file(os.join_path(dir, 'VERSION'))!.trim_space()212	assert os.execute('${q(fresh)} --version').output.trim_space() == 'koh ${version}'213}214215fn test_build_refuses_what_it_cannot_do() {216	dir := temp_repo('build_bad')217	defer { os.rmdir_all(dir) or {} }218	init_repo(dir)219	missing := run(dir, 'build')220	assert missing.code == 1221	assert missing.err.contains('koh.build')222223	write(dir, 'koh.build', 'command = true224output = out/demo225platforms = macos-aarch64226')227	no_version := run(dir, 'build')228	assert no_version.code == 1229	assert no_version.err.contains('VERSION')230231	write(dir, 'VERSION', '1.2.3\n')232	not_listed := run(dir, 'build', '--platform', 'linux-aarch64')233	assert not_listed.code == 1234	assert not_listed.err.contains('does not build for')235236	unknown := run(dir, 'build', '--platform', 'amiga')237	assert unknown.code == 1238	assert unknown.err.contains('amiga')239240	both := run(dir, 'build', '--all', '--platform', 'macos-aarch64')241	assert both.code == 2242	assert both.err.contains('cannot be combined')243244	write(dir, 'koh.build', 'command = true245output = out/demo246platforms = macos-aarch64, amiga247')248	bad_platform := run(dir, 'build')249	assert bad_platform.code == 1250	assert bad_platform.err.contains('amiga')251252	write(dir, 'koh.build', 'command = sh -c \'echo "no toolchain" >&2; exit 1\'253output = out/demo254platforms = ${this_platform()}255')256	failed := run(dir, 'build')257	assert failed.code == 1258	assert failed.err.contains('no toolchain')259}260261fn test_the_help_screen_lists_commands_and_no_flags() {262	dir := temp_repo('help')263	defer { os.rmdir_all(dir) or {} }264	help := run(dir, '--help')265	assert help.code == 0266	names := ['save', 'checkpoint', 'status', 'view', 'diff', 'undo', 'revert', 'load', 'offer',267		'steal']268	for name in names {269		assert help.out.contains('  ${name} '), name270	}271	assert help.out.contains('koh man <command>')272	// No flag text anywhere on the screen.273	assert !help.out.contains('--'), help.out274	lines := help.out.split_into_lines()275	for line in lines {276		assert line.runes().len <= 80, line277	}278	// Each command has its own paragraph, a blank line above it.279	for name in names {280		for i, line in lines {281			if line.starts_with('  ${name} ') {282				assert i > 0 && lines[i - 1] == '', line283			}284		}285	}286	// A bare `koh` keeps its stream and exit code; `-h` shows the same screen.287	bare := run(dir)288	assert bare.code == 2289	assert bare.out == ''290	assert bare.err.contains('koh man <command>')291	short := run(dir, '-h')292	assert short.code == 0293	assert short.out == help.out294}295296// Colour on the screen follows NO_COLOR, as it does everywhere else.297fn test_the_help_screen_has_no_colour_when_it_is_off() {298	dir := temp_repo('help_plain')299	defer { os.rmdir_all(dir) or {} }300	home := temp_repo('help_plain_home')301	defer { os.rmdir_all(home) or {} }302	out_path := os.join_path(os.temp_dir(), 'koh3-help-${os.getpid()}-${time.now().unix_nano()}')303	defer { os.rm(out_path) or {} }304	code := os.system('cd ${q(dir)} && HOME=${q(home)} NO_COLOR=1 ${q(binary)} --help > ${q(out_path)}')305	assert code == 0306	text := os.read_file(out_path) or { panic(err) }307	assert !text.contains('\x1b'), text308	assert text.contains('  save        snapshot your work')309}310311// The binary embeds VERSION while saves bump v.mod; they drifted once.312fn test_version_matches_the_manifest() {313	dir := temp_repo('version')314	defer { os.rmdir_all(dir) or {} }315	version := run(dir, '--version').out.trim_space().all_after('koh ')316	manifest := os.read_file(os.join_path(root, 'v.mod')) or { panic(err) }317	assert manifest.contains("version: '${version}'"), version318}319320fn test_save_checkpoint_and_status() {321	dir := temp_repo('save')322	defer { os.rmdir_all(dir) or {} }323	init_repo(dir)324	write(dir, 'tracked.txt', 'one\n')325	r := run(dir, 'save', 'first message', '--agent', 'agent-7', '--session', 'session-a', '--json')326	assert r.code == 0327	for key in ['id', 'parent', 'message', 'created_at', 'machine', 'is_checkpoint', 'agent', 'session',328		'files', 'size_bytes'] {329		read_json_has(r.out, key)330	}331	assert r.out.contains('"message":"first message"')332	assert r.out.contains('"agent":"agent-7"')333	assert r.out.contains('"session":"session-a"')334	assert r.out.contains('"is_checkpoint":false')335	assert run(dir, 'save', 'again').code == 1336	assert run(dir, 'save', 'again').err.contains('nothing has changed since the last save')337	assert run(dir, 'save').code == 2338	assert run(dir, 'save', 'x', '--bogus').code == 2339	cp := run(dir, 'checkpoint', 'still first', '--json')340	assert cp.code == 0341	assert cp.out.contains('"is_checkpoint":true')342	assert cp.out.contains('"parent":')343	clean := run(dir, 'status')344	assert clean.code == 0345	assert clean.out.contains('no changes')346	write(dir, 'tracked.txt', 'two\n')347	write(dir, 'new.txt', 'new\n')348	os.rm(os.join_path(dir, 'tracked.txt')) or { panic(err) }349	write(dir, '.kohignore', '*.log\n')350	status := run(dir, 'status')351	assert status.code == 0352	assert status.out.contains('+')353	assert status.out.contains('~') || status.out.contains('-')354	assert status.out.contains('added')355	js := run(dir, 'status', '--json')356	assert js.code == 0357	for key in ['head_id', 'head_msg', 'dirty', 'modified', 'added', 'deleted', 'ignore_changed',358		'saves', 'size_bytes', 'head_flagged'] {359		read_json_has(js.out, key)360	}361	assert js.out.contains('"ignore_changed":true')362	// What the shell prompt shows: saves on the line, the .koh size, the flag.363	assert js.out.contains('"saves":2')364	assert js.out.contains('"size_bytes":${os.file_size(os.join_path(dir, '.koh'))}')365	assert js.out.contains('"head_flagged":false')366	head := js.out.all_after('"head_id":"').all_before('"')367	assert run(dir, 'flag', head, '--reason', 'bad').code == 0368	assert run(dir, 'status', '--json').out.contains('"head_flagged":true')369}370371fn test_status_requires_repo_and_ignore_rules() {372	dir := temp_repo('status')373	defer { os.rmdir_all(dir) or {} }374	assert run(dir, 'status').code == 1375	init_repo(dir)376	write(dir, '.kohignore', '*.log\nbuild/\n')377	write(dir, 'keep.txt', 'keep\n')378	write(dir, 'ignored.log', 'ignore\n')379	write(dir, 'build/output.txt', 'ignore\n')380	assert run(dir, 'save', 'keep').code == 0381	assert run(dir, 'status').out.contains('no changes')382	assert !run(dir, 'status').out.contains('ignored.log')383	assert !run(dir, 'status').out.contains('build/output.txt')384	assert !run(dir, 'status').out.contains('LOG.md')385}386387fn test_status_and_save_report_unsafe_names_without_refusing_the_save() {388	dir := temp_repo('unsafe-names')389	defer { os.rmdir_all(dir) or {} }390	init_repo(dir)391	write(dir, 'safe.txt', 'safe\n')392	assert run(dir, 'save', 'safe').code == 0393	os.write_file('${dir}/bad\\name.txt', 'bad\n') or { panic(err) }394	os.write_file('${dir}/Icon\r', 'icon\n') or { panic(err) }395396	status := run(dir, 'status', '--json')397	assert status.code == 0398	assert status.out.contains('"unsafe_paths":["Icon\\\\x0d","bad\\\\\\\\name.txt"]'), status.out399	saved := run(dir, 'checkpoint', 'unsafe names', '--json')400	assert saved.code == 0401	assert saved.out.contains('"unsafe_paths":["Icon\\\\x0d","bad\\\\\\\\name.txt"]'), saved.out402}403404// LOG.md is a convenience written after the save lands. If it cannot be405// written, the save still happened, and an agent that retried on a failure406// would only be told nothing had changed.407fn test_a_save_succeeds_when_log_md_cannot_be_written() {408	dir := temp_repo('logmd')409	defer { os.rmdir_all(dir) or {} }410	init_repo(dir)411	os.mkdir_all(os.join_path(dir, 'LOG.md')) or { panic(err) }412	write(dir, 'a.txt', 'one\n')413	r := run(dir, 'save', 'first', '--json')414	assert r.code == 0415	assert r.out.starts_with('{')416	assert r.err.contains('LOG.md')417	assert run(dir, 'view', '--json').out.contains('"message":"first"')418}419420// A folder of ignored files can sit where a restored file should go. Koh421// never touches ignored files, so the restore must stop and say so, not drop422// the file inside the folder under a temporary name.423fn test_a_restore_refuses_a_folder_of_ignored_files_in_the_way() {424	dir := temp_repo('dir-in-way')425	defer { os.rmdir_all(dir) or {} }426	init_repo(dir)427	write(dir, 'out', 'a file\n')428	first := run(dir, 'save', 'out is a file', '--json').out.all_after('"id":"')[..12]429	os.rm(os.join_path(dir, 'out')) or { panic(err) }430	write(dir, 'out/build.log', 'ignored\n')431	assert run(dir, 'save', 'out is gone').code == 0432	r := run(dir, 'load', first, '--yes')433	assert r.code == 1434	assert r.err.contains('out')435	assert os.ls(os.join_path(dir, 'out'))! == ['build.log']436}437438// Koh never follows a symlink, so a folder replaced by a link to somewhere439// else is not the repo's to write into: restoring through it would overwrite440// files outside the repo. The refusal comes before anything is recorded.441fn test_a_restore_never_writes_through_a_symlinked_folder() {442	dir := temp_repo('link-in-way')443	outside := temp_repo('link-target')444	defer {445		os.rmdir_all(dir) or {}446		os.rmdir_all(outside) or {}447	}448	init_repo(dir)449	write(dir, 'docs/a.md', 'saved\n')450	first := run(dir, 'save', 'docs', '--json').out.all_after('"id":"')[..12]451	os.rmdir_all(os.join_path(dir, 'docs')) or { panic(err) }452	write(outside, 'a.md', 'precious\n')453	os.symlink(outside, os.join_path(dir, 'docs')) or { panic(err) }454	assert run(dir, 'save', 'docs is a link now').code == 0455	head := run(dir, 'status', '--json').out456	r := run(dir, 'load', first, '--yes')457	assert r.code == 1458	assert r.err.contains('docs')459	assert os.read_file(os.join_path(outside, 'a.md'))! == 'precious\n'460	assert run(dir, 'status', '--json').out == head461}462463// A restore records its save first, then writes files. When the writing stops464// part way, the half-written tree is not somebody's work: saving it would465// record (and offer) a tree that undoes changes nobody asked to undo. Every466// command that would build on it points at revert, which finishes the job.467fn test_a_restore_cut_short_points_at_revert() {468	dir := temp_repo('cut-short')469	defer {470		os.chmod(os.join_path(dir, 'zz'), 0o755) or {}471		os.rmdir_all(dir) or {}472	}473	init_repo(dir)474	write(dir, 'zero', '0\n')475	assert run(dir, 'save', 'zero').code == 0476	write(dir, 'a.txt', 'v1\n')477	write(dir, 'zz/f', 'v1\n')478	assert run(dir, 'save', 'first').code == 0479	write(dir, 'a.txt', 'v2\n')480	write(dir, 'zz/f', 'v2\n')481	assert run(dir, 'save', 'second').code == 0482	// a.txt is written, then the read-only folder stops the restore: the483	// tree is genuinely half one save and half the other.484	os.chmod(os.join_path(dir, 'zz'), 0o555)!485	stopped := run(dir, 'undo', '--yes')486	assert stopped.code == 1487	assert stopped.err.contains('koh revert')488	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'v1\n'489	assert os.read_file(os.join_path(dir, 'zz/f'))! == 'v2\n'490	// Even a status that cannot read the tree says what happened.491	os.chmod(os.join_path(dir, 'zz'), 0o000)!492	assert run(dir, 'status').err.contains('koh revert')493	os.chmod(os.join_path(dir, 'zz'), 0o755)!494495	assert run(dir, 'status', '--json').out.contains('"restore_unfinished":true')496	for args in [['save', 'half'], ['checkpoint', 'half'], ['undo', '--yes']] {497		r := run(dir, ...args)498		assert r.code == 1499		assert r.err.contains('koh revert')500	}501	assert run(dir, 'revert', '--yes').code == 0502	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'v1\n'503	assert os.read_file(os.join_path(dir, 'zz/f'))! == 'v1\n'504	assert run(dir, 'status', '--json').out.contains('"restore_unfinished":false')505	write(dir, 'a.txt', 'v3\n')506	assert run(dir, 'save', 'carry on').code == 0507}508509// Doctor clears peek folders left from earlier days, never one somebody may510// be reading right now.511fn test_doctor_sweeps_only_old_peek_folders() {512	dir := temp_repo('peek-sweep')513	// V's temp_dir is /tmp on macOS whatever TMPDIR says, so these live in514	// the real temp directory under names no save could have.515	fresh := os.join_path(os.temp_dir(), 'koh-peek-fresh${os.getpid()}')516	old := os.join_path(os.temp_dir(), 'koh-peek-old${os.getpid()}')517	defer {518		os.rmdir_all(dir) or {}519		os.rmdir_all(fresh) or {}520		os.rmdir_all(old) or {}521	}522	init_repo(dir)523	write(dir, 'a.txt', 'one\n')524	assert run(dir, 'save', 'one').code == 0525	os.mkdir_all(fresh) or { panic(err) }526	os.mkdir_all(old) or { panic(err) }527	two_days_ago := time.now().unix() - 2 * 86400528	os.utime(old, two_days_ago, two_days_ago) or { panic(err) }529	assert run(dir, 'doctor', '--json').code == 0530	assert os.exists(fresh)531	assert !os.exists(old)532}533534// A file saved long ago and ignored since holds work no save has. Loading the535// old save must not write over it; the document says a restore never touches536// ignored files.537fn test_a_restore_never_overwrites_an_ignored_file() {538	dir := temp_repo('ignored-restore')539	defer { os.rmdir_all(dir) or {} }540	init_repo(dir)541	write(dir, '.env', 'KEY=saved long ago\n')542	first := run(dir, 'save', 'with env', '--json').out.all_after('"id":"')[..12]543	write(dir, '.kohignore', '.env\n')544	assert run(dir, 'save', 'ignore env').code == 0545	write(dir, '.env', 'KEY=never saved\n')546	assert run(dir, 'load', first, '--yes').code == 0547	assert os.read_file(os.join_path(dir, '.env'))! == 'KEY=never saved\n'548549	// Where the ignored file is missing, the restore still brings it back.550	other := temp_repo('ignored-restore-missing')551	defer { os.rmdir_all(other) or {} }552	init_repo(other)553	write(other, '.env', 'KEY=saved long ago\n')554	again := run(other, 'save', 'with env', '--json').out.all_after('"id":"')[..12]555	write(other, '.kohignore', '.env\n')556	assert run(other, 'save', 'ignore env').code == 0557	os.rm(os.join_path(other, '.env')) or { panic(err) }558	assert run(other, 'load', again, '--yes').code == 0559	assert os.read_file(os.join_path(other, '.env'))! == 'KEY=saved long ago\n'560}561562// A going-back preview lists paths only. Running diff(1) per file to draw it563// cost 27 s for 5,000 changed files, so it must not run diff at all.564fn test_a_going_back_preview_does_not_run_diff() {565	dir := temp_repo('preview-nodiff')566	home := temp_repo('preview-nodiff-home')567	defer {568		os.rmdir_all(dir) or {}569		os.rmdir_all(home) or {}570	}571	init_repo(dir)572	write(dir, 'a.txt', 'one\n')573	assert run_home(dir, home, 'save', 'one').code == 0574	write(dir, 'a.txt', 'two\n')575	assert run_home(dir, home, 'save', 'two').code == 0576	fake := os.join_path(home, 'bin')577	os.mkdir_all(fake) or { panic(err) }578	marker := os.join_path(home, 'diff-ran')579	os.write_file(os.join_path(fake, 'diff'), '#!/bin/sh\ntouch ${q(marker)}\nexit 2\n') or {580		panic(err)581	}582	os.chmod(os.join_path(fake, 'diff'), 0o755) or { panic(err) }583	assert run_home_with_path(dir, home, fake, 'undo', '--yes').code == 0584	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'one\n'585	assert !os.exists(marker)586}587588// A restore rewrites only what differs. Rewriting every file resets every589// mtime, so the next status has to hash the whole tree again.590fn test_a_restore_leaves_unchanged_files_alone() {591	dir := temp_repo('restore-skip')592	defer { os.rmdir_all(dir) or {} }593	init_repo(dir)594	write(dir, 'a.txt', 'one\n')595	write(dir, 'same.txt', 'never changes\n')596	assert run(dir, 'save', 'one').code == 0597	write(dir, 'a.txt', 'two\n')598	assert run(dir, 'save', 'two').code == 0599	long_ago := i64(1700000000)600	os.utime(os.join_path(dir, 'same.txt'), long_ago, long_ago) or { panic(err) }601	assert run(dir, 'undo', '--yes').code == 0602	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'one\n'603	assert os.file_last_mod_unix(os.join_path(dir, 'same.txt')) == long_ago604}605606// `save` records the executable bit, so `status` has to see it too, or a607// chmod would be invisible until it turned up in a save.608fn test_status_sees_an_executable_bit_change() {609	dir := temp_repo('chmod')610	defer { os.rmdir_all(dir) or {} }611	init_repo(dir)612	write(dir, 'run.sh', 'echo hi\n')613	assert run(dir, 'save', 'script').code == 0614	os.chmod(os.join_path(dir, 'run.sh'), 0o755) or { panic(err) }615	status := run(dir, 'status', '--json')616	assert status.out.contains('"dirty":true')617	assert status.out.contains('"modified":["run.sh"]')618}619620fn test_view_and_diff() {621	dir := temp_repo('history')622	defer { os.rmdir_all(dir) or {} }623	init_repo(dir)624	write(dir, 'a.txt', 'one\n')625	first := run(dir, 'save', 'one', '--session', 'alpha', '--json')626	id1 := first.out.all_after('"id":"')[..12]627	write(dir, 'a.txt', 'two\n')628	second := run(dir, 'save', 'two', '--session', 'beta', '--json')629	id2 := second.out.all_after('"id":"')[..12]630	cp := run(dir, 'checkpoint', 'checkpoint', '--json')631	assert cp.code == 0632	printed := run(dir, 'view')633	assert printed.code == 0634	assert printed.out.contains('▸')635	assert printed.out.contains('◐')636	lj := run(dir, 'view', '--json')637	assert lj.code == 0638	assert lj.out.contains('"head_id"')639	assert lj.out.contains('"saves"')640	assert run(dir, 'view', '--since', 'today').out.contains('two')641	session := run(dir, 'view', '--session', 'alpha')642	assert session.out.contains('one')643	assert !session.out.contains('two')644	assert run(dir, 'view', '--since', '9999-01-01').out.contains('no saves in that range')645	write(dir, 'a.txt', 'three\n')646	d := run(dir, 'diff')647	assert d.code == 0648	assert d.out.contains('--- a/')649	assert d.out.contains('+++ b/')650	assert run(dir, 'diff', id1).code == 0651	assert run(dir, 'diff', id1, id2).code == 0652	dj := run(dir, 'diff', '--json')653	assert dj.code == 0654	assert dj.out.contains('"from"')655	assert dj.out.contains('"to"')656	assert dj.out.contains('"files"')657	assert dj.out.contains('"change":"modified"')658	assert run(dir, 'diff', 'not-a-real-id').code == 1659	assert run(dir, 'diff', id1, id2, 'third').code == 1660	write(dir, 'blob.bin', '\x00\x01\x02')661	diff_binary := run(dir, 'diff', '--json')662	assert diff_binary.out.contains('"binary":true')663	assert diff_binary.out.contains('Binary files differ')664}665666fn test_undo_revert_and_load() {667	dir := temp_repo('restore')668	defer { os.rmdir_all(dir) or {} }669	init_repo(dir)670	write(dir, 'a.txt', 'one\n')671	one := run(dir, 'save', 'one', '--json').out672	id1 := one.all_after('"id":"')[..12]673	write(dir, 'a.txt', 'two\n')674	write(dir, 'gone.txt', 'gone\n')675	second := run(dir, 'save', 'two', '--json').out676	id2 := second.all_after('"id":"')[..12]677	write(dir, 'a.txt', 'three\n')678	third := run(dir, 'save', 'three', '--json').out679	id3 := third.all_after('"id":"')[..12]680	// Unsaved work — here a file never saved — blocks every going-back but681	// revert, as in Koh 2: a restore must never overwrite what only the disk has.682	write(dir, 'never.txt', 'keep me\n')683	view_before := run(dir, 'view').out684	for args in [['undo', '--yes'], ['load', id1, '--yes'], ['pluck', id2, '--yes']] {685		blocked := run(dir, ...args)686		assert blocked.code == 1687		assert blocked.err.contains('unsaved changes')688	}689	assert run(dir, 'view').out == view_before690	os.rm(os.join_path(dir, 'never.txt')) or { panic(err) }691	write(dir, 'a.txt', 'edited, never saved\n')692	assert run(dir, 'undo', '--yes').err.contains('unsaved changes')693	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'edited, never saved\n'694	write(dir, 'a.txt', 'three\n')695	os.rm(os.join_path(dir, 'gone.txt')) or { panic(err) }696	assert run(dir, 'load', id1, '--yes').err.contains('unsaved changes')697	write(dir, 'gone.txt', 'gone\n')698	undo := run(dir, 'undo', '--yes', '--json')699	assert undo.code == 0700	if !undo.out.contains(id2) {701		panic('undo JSON did not name ${id2}: ${undo.out}')702	}703	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'two\n'704	assert os.exists(os.join_path(dir, 'gone.txt'))705	assert run(dir, 'load', id3, '--yes').code == 0706	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'three\n'707	assert run(dir, 'undo', '2', '--yes').code == 0708	assert run(dir, 'load', id2, '--yes').code == 0709	assert run(dir, 'undo', '99', '--yes').err.contains('nothing before')710	write(dir, 'a.txt', 'dirty\n')711	before := run(dir, 'view')712	refuse := run(dir, 'revert')713	assert refuse.code == 1714	assert refuse.err.contains('needs --yes when not interactive')715	assert run(dir, 'view').out == before.out716	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'dirty\n'717	write(dir, 'untracked.txt', 'remove\n')718	rv := run(dir, 'revert', '--yes', '--json')719	assert rv.code == 0720	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'two\n'721	assert !os.exists(os.join_path(dir, 'untracked.txt'))722	// The way back to the discarded work is named, not left to be found.723	kept := rv.out.all_after('"checkpoint":"')[..12]724	assert run(dir, 'load', kept, '--yes').code == 0725	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'dirty\n'726	assert os.read_file(os.join_path(dir, 'untracked.txt'))! == 'remove\n'727	write(dir, 'a.txt', 'dirty again\n')728	assert run(dir, 'revert', '--yes').out.contains('koh load ')729	assert run(dir, 'revert', '--yes').out.contains('working tree already matches')730	assert run(dir, 'load', '--checkpoint', '--yes').code == 0731	assert run(dir, 'load', id2, '--json').code == 1732	assert run(dir, 'load', id2, '--json').err.contains('error')733	assert run(dir, 'load').code == 2734	assert run(dir, 'load', 'unknown-id', '--yes').code == 1735}736737fn test_flag_and_flagged_view() {738	dir := temp_repo('flag')739	defer { os.rmdir_all(dir) or {} }740	init_repo(dir)741	write(dir, 'flag.txt', 'one\n')742	saved := run(dir, 'save', 'flag me', '--json')743	id := saved.out.all_after('"id":"')[..12]744	flagged := run(dir, 'flag', id, '--reason', 'unsafe', '--json')745	assert flagged.code == 0746	assert flagged.out.contains('"flagged":true')747	assert flagged.out.contains('"reason":"unsafe"')748	list := run(dir, 'flag', '--json')749	assert list.code == 0750	assert list.out.contains(id)751	assert list.out.contains('unsafe')752	assert run(dir, 'view').out.contains('⚑')753	assert run(dir, 'flag', '--clear', id).code == 0754	assert run(dir, 'flag').out.contains('nothing is flagged')755	assert run(dir, 'flag', 'unknown-id').code == 1756	assert run(dir, 'flag').code == 0757}758759fn test_pluck_forward_reverse_dry_run_and_conflict() {760	dir := temp_repo('pluck')761	defer { os.rmdir_all(dir) or {} }762	init_repo(dir)763	write(dir, 'a.txt', 'one\n')764	first := run(dir, 'save', 'one', '--json').out765	id1 := first.all_after('"id":"')[..12]766	write(dir, 'a.txt', 'two\n')767	second := run(dir, 'save', 'two', '--json').out768	id2 := second.all_after('"id":"')[..12]769	assert run(dir, 'load', id1, '--yes').code == 0770	dry := run(dir, 'pluck', id2, '--dry-run')771	assert dry.code == 0772	assert dry.out.contains('a.txt')773	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'one\n'774	assert run(dir, 'pluck', id2, '--yes').code == 0775	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'two\n'776	assert run(dir, 'pluck', '--reverse', id2, '--yes').code == 0777	assert os.read_file(os.join_path(dir, 'a.txt'))! == 'one\n'778	write(dir, 'a.txt', 'different\n')779	assert run(dir, 'pluck', id2, '--dry-run').code == 1780	assert run(dir, 'save', 'different').code == 0781	conflict := run(dir, 'pluck', id2, '--yes')782	assert conflict.code == 1783	assert conflict.err.contains('a.txt')784	assert run(dir, 'pluck').code == 2785	assert run(dir, 'pluck', 'unknown-id').code == 1786}787788fn test_peek_and_doctor() {789	dir := temp_repo('peek-doctor')790	defer { os.rmdir_all(dir) or {} }791	init_repo(dir)792	write(dir, 'peek.txt', 'peek me\n')793	assert run(dir, 'save', 'peekable').code == 0794	id := run(dir, 'view', '--json').out.all_after('"id":"')[..12]795	before_view := run(dir, 'view', '--json').out796	peek := run(dir, 'peek', id, '--json')797	assert peek.code == 0798	peek_path := peek.out.all_after('"path":"').before('"')799	assert peek.out.contains('"id":"${id}"')800	assert os.read_file(os.join_path(peek_path, 'peek.txt'))! == 'peek me\n'801	assert run(dir, 'status').out.contains('no changes')802	assert run(dir, 'view', '--json').out == before_view803	assert run(dir, 'peek').code == 2804	assert run(dir, 'peek', 'unknown-id').code == 1805	backup := os.join_path(dir, 'doctor.backup')806	healthy := run(dir, 'doctor')807	assert healthy.code == 0808	assert healthy.out.contains('is sound')809	report := run(dir, 'doctor', '--json')810	assert report.code == 0811	for key in ['problems', 'objects', 'saves', 'checkpoints', 'cached_files', 'peek_folders_removed',812		'backup'] {813		read_json_has(report.out, key)814	}815	backed := run(dir, 'doctor', '--backup', backup)816	assert backed.code == 0817	assert os.exists(backup)818	assert backed.out.contains(backup)819	assert run(dir, 'doctor', '--backup', backup).code == 1820	assert run(dir, 'peek', id, '--json').code == 0821	// A peek made today is left for whoever is reading it.822	kept := run(dir, 'doctor', '--json')823	assert kept.code == 0824	assert os.exists(peek_path)825	os.rmdir_all(peek_path) or {}826}827828fn test_strip_refuses_without_terminal() {829	dir := temp_repo('strip')830	defer { os.rmdir_all(dir) or {} }831	init_repo(dir)832	write(dir, 'secret.txt', 'keep\n')833	assert run(dir, 'save', 'secret').code == 0834	before_view := run(dir, 'view', '--json').out835	refused := run(dir, 'strip', 'secret.txt')836	assert refused.code == 1837	assert refused.err.contains('needs a terminal')838	assert run(dir, 'view', '--json').out == before_view839	assert os.read_file(os.join_path(dir, 'secret.txt'))! == 'keep\n'840	assert run(dir, 'view', '--json').out.contains('secret')841}842843// A whole-history strip bans the path: `.kohignore` names it, once, and the file left on disk844// is never unsaved work or part of a save again.845fn test_strip_adds_the_path_to_kohignore_and_it_stays_out() {846	dir := temp_repo('strip-ignore')847	home := temp_repo('strip-ignore-home')848	defer { os.rmdir_all(dir) or {} }849	defer { os.rmdir_all(home) or {} }850	init_repo(dir)851	write(dir, 'secret.txt', 'leaked\n')852	write(dir, 'keep.txt', 'fine\n')853	assert run_home(dir, home, 'save', 'leak').code == 0854	stripped := run_pty_home(dir, home, ['y', 'secret.txt'], 'strip', 'secret.txt')855	assert stripped.code == 0, stripped.out856	assert stripped.out.contains('added /secret.txt to .kohignore')857	ignore_path := os.join_path(dir, '.kohignore')858	assert os.read_file(ignore_path)!.split_into_lines().filter(it == '/secret.txt').len == 1859	assert run_home(dir, home, 'save', 'ignore the stripped secret').code == 0860	write(dir, 'secret.txt', 'leaked again\n')861	assert run_home(dir, home, 'status', '--json').out.contains('"dirty":false')862	// Running the strip again (with no remote, it stays pending) adds no second line.863	again := run_pty_home(dir, home, [], 'strip', 'secret.txt')864	assert again.code == 0, again.out865	assert os.read_file(ignore_path)!.split_into_lines().filter(it == '/secret.txt').len == 1866}867868// `koh view` is the one way into the history: the whole line by default,869// checkpoints alone with the flag, and the two lists never overlap.870fn test_view_shows_the_line_and_checkpoints_apart() {871	dir := temp_repo('view')872	defer { os.rmdir_all(dir) or {} }873	init_repo(dir)874	write(dir, 'view.txt', 'one\n')875	assert run(dir, 'save', 'plain save').code == 0876	assert run(dir, 'checkpoint', 'checkpoint save').code == 0877	line := run(dir, 'view')878	assert line.code == 0879	assert line.out.contains('plain save')880	assert line.out.contains('checkpoint save')881	checkpoints := run(dir, 'view', '--checkpoints')882	assert checkpoints.code == 0883	assert checkpoints.out.contains('checkpoint save')884	assert !checkpoints.out.contains('plain save')885	json_line := run(dir, 'view', '--json')886	assert json_line.code == 0887	assert json_line.out.contains('"is_checkpoint":false')888	assert json_line.out.contains('"is_checkpoint":true')889	json_checkpoints := run(dir, 'view', '--checkpoints', '--json')890	assert json_checkpoints.code == 0891	assert json_checkpoints.out.contains('"is_checkpoint":true')892	assert !json_checkpoints.out.contains('"is_checkpoint":false')893	// `view` takes no arguments, so a stray one is a usage error, and the names894	// it replaced are gone rather than hidden: the diagnostic says which.895	assert run(dir, 'view', 'extra').code == 2896	for gone in ['log', 'saves', 'checkpoints'] {897		refused := run(dir, gone)898		assert refused.code == 2899		assert refused.err.contains('unknown command "${gone}"')900	}901	// Every save is on the whole line exactly once, as the JSON says.902	assert line.out.split_into_lines().len == json_line.out.count('"id":"')903}904905fn test_remote_configuration_is_isolated_and_atomic() {906	dir := temp_repo('remote')907	home := temp_repo('remote-home')908	defer {909		os.rmdir_all(dir) or {}910		os.rmdir_all(home) or {}911	}912	empty := run_home(dir, home, 'remote', '--json')913	assert empty.code == 0914	assert empty.out.contains('"configured":false')915	target := os.join_path(home, 'remote-store')916	set := run_home(dir, home, 'remote', 'folder', target)917	assert set.code == 0918	assert os.is_dir(target)919	state := run_home(dir, home, 'remote', '--json')920	assert state.code == 0921	assert state.out.contains('"kind":"folder"')922	assert state.out.contains(target)923	assert run_home(dir, home, 'remote', 's3', 'http://127.0.0.1:1', 'bucket', 'region').code == 1924	assert run_home(dir, home, 'remote', '--json').out.contains(target)925	assert run_home(dir, home, 'remote', 's3', 'http://127.0.0.1:1', 'bucket', 'region').err.contains('KOH_ACCESS_KEY')926	assert run_home(dir, home, 'remote', '--forget').code == 0927	assert run_home(dir, home, 'remote', '--json').out.contains('"configured":false')928}929930// The files under ~/.config/koh can be written by hand instead of by931// `koh remote`, and are then read the same way.932fn test_remote_written_by_hand() {933	dir := temp_repo('remote-by-hand')934	home := temp_repo('remote-by-hand-home')935	defer {936		os.rmdir_all(dir) or {}937		os.rmdir_all(home) or {}938	}939	config := os.join_path(home, '.config', 'koh')940	os.mkdir_all(config) or { panic(err) }941	target := os.join_path(home, 'remote-store')942	os.mkdir_all(target) or { panic(err) }943	os.write_file(os.join_path(config, 'remote'), 'kind = folder\npath = ${target}\n') or {944		panic(err)945	}946	assert run_home(dir, home, 'init').code == 0947	os.write_file(os.join_path(dir, 'a.txt'), 'a\n') or { panic(err) }948	assert run_home(dir, home, 'save', 'first').code == 0949	offered := run_home(dir, home, 'offer', '--json')950	assert offered.code == 0951	assert offered.out.contains('"head"')952953	// Keys anyone else can read are refused before they are ever sent.954	os.write_file(os.join_path(config, 'remote'), 'kind=s3\nendpoint=http://127.0.0.1:1\nbucket=b\nregion=r\n') or {955		panic(err)956	}957	credentials := os.join_path(config, 'credentials')958	os.write_file(credentials, 'access_key=AK\nsecret_key=SK\n') or { panic(err) }959	os.chmod(credentials, 0o644) or { panic(err) }960	loose := run_home(dir, home, 'offer')961	assert loose.code == 1962	assert loose.err.contains('chmod 600')963964	// A setting koh cannot read is replaced by setting the remote again.965	os.write_file(os.join_path(config, 'remote'), 'kind=ftp\n') or { panic(err) }966	unreadable := run_home(dir, home, 'offer')967	assert unreadable.code == 1968	assert unreadable.err.contains('not readable')969	assert run_home(dir, home, 'remote', 'folder', target).code == 0970	assert run_home(dir, home, 'offer').code == 0971}972973// A stolen repo belongs to the repo it was stolen from, whatever its folder is974// called later: renaming it must not start a second repo on the remote.975fn test_a_renamed_stolen_repo_keeps_offering_to_its_repo() {976	syncroot := temp_repo('rename-steal')977	home := temp_repo('rename-steal-home')978	defer {979		os.rmdir_all(syncroot) or {}980		os.rmdir_all(home) or {}981	}982	remote := os.join_path(syncroot, 'remote')983	a := os.join_path(syncroot, 'A', 'proj')984	b_parent := os.join_path(syncroot, 'B')985	os.mkdir_all(a) or { panic(err) }986	os.mkdir_all(b_parent) or { panic(err) }987	init_repo(a)988	write(a, 'a.txt', 'from A\n')989	assert run_home(a, home, 'remote', 'folder', remote).code == 0990	assert run_home(a, home, 'save', 'A first').code == 0991	assert run_home(b_parent, home, 'steal', 'proj').code == 0992	renamed := os.join_path(b_parent, 'renamed')993	os.mv(os.join_path(b_parent, 'proj'), renamed) or { panic(err) }994	write(renamed, 'b.txt', 'from B\n')995	assert run_home(renamed, home, 'save', 'B first').code == 0996	assert !os.exists(os.join_path(remote, 'renamed'))997	assert run_home(a, home, 'steal').code == 0998	assert os.read_file(os.join_path(a, 'b.txt'))! == 'from B\n'999}10001001// A damaged object on the remote stops a steal, names the object, and leaves1002// no half-made folder that would make the retry refuse.1003fn test_steal_of_a_damaged_remote_leaves_nothing() {1004	syncroot := temp_repo('damaged')1005	home := temp_repo('damaged-home')1006	defer {1007		os.rmdir_all(syncroot) or {}1008		os.rmdir_all(home) or {}1009	}1010	remote := os.join_path(syncroot, 'remote')1011	a := os.join_path(syncroot, 'A', 'proj')1012	b_parent := os.join_path(syncroot, 'B')1013	os.mkdir_all(a) or { panic(err) }1014	os.mkdir_all(b_parent) or { panic(err) }1015	init_repo(a)1016	write(a, 'a.txt', 'from A\n')1017	assert run_home(a, home, 'remote', 'folder', remote).code == 01018	assert run_home(a, home, 'save', 'A first').code == 01019	objects := os.join_path(remote, 'proj', 'objects')1020	for name in os.ls(objects) or { panic(err) } {1021		os.chmod(os.join_path(objects, name), 0o644) or {}1022		os.write_file(os.join_path(objects, name), 'junk') or { panic(err) }1023	}1024	stolen := run_home(b_parent, home, 'steal', 'proj')1025	assert stolen.code == 11026	assert stolen.err.contains('is damaged')1027	assert !os.exists(os.join_path(b_parent, 'proj'))1028}10291030fn test_steal_drops_crafted_unsafe_paths_and_lands_the_rest() {1031	syncroot := temp_repo('unsafe-remote')1032	home := temp_repo('unsafe-remote-home')1033	defer {1034		os.rmdir_all(syncroot) or {}1035		os.rmdir_all(home) or {}1036	}1037	remote := os.join_path(syncroot, 'remote')1038	a := os.join_path(syncroot, 'A', 'proj')1039	b_parent := os.join_path(syncroot, 'B')1040	os.mkdir_all(a) or { panic(err) }1041	os.mkdir_all(b_parent) or { panic(err) }1042	init_repo(a)1043	write(a, 'safe.txt', 'safe\n')1044	assert run_home(a, home, 'remote', 'folder', remote).code == 01045	id := run_home(a, home, 'save', 'crafted', '--json').out.all_after('"id":"')[..12]1046	assert run_home(a, home, 'offer').code == 01047	record_path := os.join_path(remote, 'proj', 'saves', id)1048	record := os.read_file(record_path) or { panic(err) }1049	path_at := record.index('"path":"safe.txt"') or { panic('safe path missing from ${record}') }1050	file_start := record[..path_at].last_index('{') or { panic('safe file start missing') }1051	file_end := path_at + (record[path_at..].index('}') or { panic('safe file end missing') }) + 11052	file := record[file_start..file_end]1053	mut files := [file]1054	for path in ['../outside.txt', '/etc/koh-test', 'a/../../outside.txt', 'bad\\\\name',1055		'control\\rname'] {1056		files << file.replace('safe.txt', path)1057	}1058	os.write_file(record_path, record[..file_start] + files.join(',') + record[file_end..]) or {1059		panic(err)1060	}10611062	stolen := run_home(b_parent, home, 'steal', 'proj')1063	assert stolen.code == 0, stolen.err1064	for dropped in ['../outside.txt', 'bad\\\\name', 'control\\x0dname'] {1065		assert (stolen.out + stolen.err).contains('dropped unsafe path ${dropped}'), stolen.out + stolen.err1066	}1067	assert os.read_file(os.join_path(b_parent, 'proj', 'safe.txt'))! == 'safe\n'1068	assert !os.exists(os.join_path(b_parent, 'outside.txt'))1069	assert !os.exists(os.join_path(b_parent, 'proj', 'bad', 'name'))1070	assert !os.exists('${b_parent}/proj/control\rname')1071}10721073fn test_offer_steal_folder_remote() {1074	syncroot := temp_repo('sync')1075	home := temp_repo('sync-home')1076	defer {1077		os.rmdir_all(syncroot) or {}1078		os.rmdir_all(home) or {}1079	}1080	remote := os.join_path(syncroot, 'remote')1081	a := os.join_path(syncroot, 'A', 'proj')1082	b_parent := os.join_path(syncroot, 'B')1083	os.mkdir_all(a) or { panic(err) }1084	os.mkdir_all(b_parent) or { panic(err) }1085	init_repo(a)1086	write(a, 'a.txt', 'from A\n')1087	assert run_home(a, home, 'remote', 'folder', remote).code == 01088	assert run_home(a, home, 'save', 'A first').code == 01089	stolen := run_home(b_parent, home, 'steal', 'proj')1090	assert stolen.code == 01091	b := os.join_path(b_parent, 'proj')1092	assert os.read_file(os.join_path(b, 'a.txt'))! == 'from A\n'1093	write(b, 'b.txt', 'from B\n')1094	assert run_home(b, home, 'save', 'B first').code == 01095	write(a, 'a2.txt', 'second\n')1096	assert run_home(a, home, 'save', 'A second').code == 01097	assert run_home(a, home, 'steal').code == 01098	assert os.exists(os.join_path(a, 'b.txt'))1099	assert run_home(b_parent, home, 'steal', '--list').out.contains('proj')1100	write(a, 'clash.txt', 'base\n')1101	assert run_home(a, home, 'save', 'clash base').code == 01102	assert run_home(b, home, 'steal').code == 01103	write(a, 'clash.txt', 'A version\n')1104	assert run_home(a, home, 'save', 'A clash').code == 01105	write(b, 'clash.txt', 'B version\n')1106	assert run_home(b, home, 'save', 'B clash').code == 01107	refused := run_home(b, home, 'steal')1108	assert refused.code == 11109	assert refused.err.contains('--mine') || refused.err.contains('--theirs')1110	b_head := run_home(b, home, 'status', '--json').out.all_after('"head_id":"')[..12]1111	theirs := run_home(b, home, 'steal', '--theirs', '--json')1112	assert theirs.code == 01113	// The pre-combine tree is off the line now; the way back must be named,1114	// or an agent without the history view cannot find it.1115	assert theirs.out.contains('"previous_head":"${b_head}"')1116	assert theirs.out.contains('"kept_versions":["clash.txt:${b_head}"]')1117	assert os.read_file(os.join_path(b, 'clash.txt'))! == 'A version\n'1118	assert run_home(b, home, 'load', b_head, '--yes').code == 01119	assert os.read_file(os.join_path(b, 'clash.txt'))! == 'B version\n'1120	assert run_home(b, home, 'load', theirs.out.all_after('"head":"')[..12], '--yes').code == 01121	assert os.read_file(os.join_path(b, 'clash.txt'))! == 'A version\n'1122	write(a, 'clash.txt', 'A second\n')1123	assert run_home(a, home, 'save', 'A second clash').code == 01124	write(b, 'clash.txt', 'B second\n')1125	assert run_home(b, home, 'save', 'B second clash').code == 01126	assert run_home(b, home, 'steal', '--mine').code == 01127	assert os.read_file(os.join_path(b, 'clash.txt'))! == 'B second\n'1128	assert run_home(b, home, 'view').out.contains('combine: kept mine for')1129}11301131fn test_guided_steal_walks_the_terminal_and_can_cancel() {1132	syncroot := temp_repo('guided-steal')1133	home := temp_repo('guided-steal-home')1134	defer {1135		os.rmdir_all(syncroot) or {}1136		os.rmdir_all(home) or {}1137	}1138	remote := os.join_path(syncroot, 'remote')1139	a := os.join_path(syncroot, 'A', 'proj')1140	b_parent := os.join_path(syncroot, 'B')1141	os.mkdir_all(a) or { panic(err) }1142	os.mkdir_all(b_parent) or { panic(err) }1143	init_repo(a)1144	write(a, 'clash.txt', 'base\n')1145	write(a, 'other.txt', 'base\n')1146	write(a, 'same.txt', 'base\n')1147	write(a, 'remote-only.txt', 'base\n')1148	write(a, 'local-only.txt', 'base\n')1149	assert run_home(a, home, 'remote', 'folder', remote).code == 01150	assert run_home(a, home, 'save', 'base').code == 01151	assert run_home(b_parent, home, 'steal', 'proj').code == 01152	b := os.join_path(b_parent, 'proj')11531154	write(b, 'dirty.txt', 'mine\n')1155	before := run_home(b, home, 'status', '--json').out1156	quit := run_pty_home(b, home, ['q'], 'steal')1157	assert quit.out.contains('steal proj')1158	assert quit.out.contains('you have 1 unsaved file')1159	assert quit.out.contains('dirty.txt')1160	assert run_home(b, home, 'status', '--json').out == before1161	// A save needs a message; an empty one stops, says so, and saves nothing.1162	unsaid := run_pty_home(b, home, ['s', ''], 'steal')1163	assert unsaid.code == 11164	assert unsaid.out.contains('no message — nothing was saved')1165	assert run_home(b, home, 'status', '--json').out == before1166	checkpoint := run_pty_home(b, home, ['c'], 'steal')1167	assert checkpoint.code == 0, checkpoint.err1168	assert run_home(b, home, 'view', '--checkpoints').out.contains('before steal')11691170	assert run_home(a, home, 'steal').code == 01171	write(a, 'forward.txt', 'new\n')1172	assert run_home(a, home, 'save', 'fast forward').code == 01173	forward := run_pty_home(b, home, []string{}, 'steal')1174	assert forward.out.contains('proj is up to date · 1 new save')1175	assert forward.out.split_into_lines().filter(it.trim_space() != '').len == 11176	write(a, 'clash.txt', 'remote\n')1177	write(a, 'other.txt', 'remote\n')1178	write(a, 'same.txt', 'identical\n')1179	write(a, 'remote-only.txt', 'remote\n')1180	assert run_home(a, home, 'save', 'remote change').code == 01181	write(b, 'clash.txt', 'mine\n')1182	write(b, 'other.txt', 'mine\n')1183	write(b, 'same.txt', 'identical\n')1184	write(b, 'local-only.txt', 'mine\n')1185	assert run_home(b, home, 'save', 'local change').code == 01186	local_head := run_home(b, home, 'status', '--json').out.all_after('"head_id":"')[..12]1187	// `d` opens both changes in the pager, which Enter leaves; `?` explains the two sides.1188	cancel := run_pty_home(b, home, ['d', '', '?', 'm', 'b', 't', 't', 'n'], 'steal')1189	assert cancel.out.contains('your changes')1190	assert cancel.out.contains('remote changes')1191	assert cancel.out.contains('Nothing is lost either way')1192	// The shared save's age, relative: seconds old here, so `now` unless the machine is slow.1193	since := cancel.out.split_into_lines().filter(it.contains('both moved since'))1194	assert since.len == 11195	assert since[0].trim_space().ends_with(' · now') || since[0].trim_space().ends_with(' ago'), since[0]1196	assert cancel.out.contains('5 files changed')1197	assert cancel.out.contains('2 combine by themselves')1198	assert cancel.out.contains('1 changed the same way')1199	assert cancel.out.contains('2 need you')1200	assert cancel.out.contains('ready to combine')1201	assert run_home(b, home, 'status', '--json').out.contains('"head_id":"${local_head}"')1202	assert os.read_file(os.join_path(b, 'clash.txt'))! == 'mine\n'12031204	done := run_pty_home(b, home, ['y'], 'steal', '--theirs')1205	assert done.out.contains('combined · offered to proj')1206	assert done.out.contains('took theirs: clash.txt · other.txt')1207	assert !done.out.contains('kept mine')1208	assert done.out.contains('to undo all of it: koh load ${local_head}')1209	assert done.out.contains('your clash.txt is in ${local_head}')1210	assert !done.out.contains('\x1b')1211	for line in done.out.split_into_lines() {1212		assert line.runes().len <= 80, line1213	}1214}12151216// A steal brings in the whole history, flags included; both output forms must1217// say which saves came in flagged, and why.1218fn test_a_steal_reports_flagged_saves() {1219	syncroot := temp_repo('steal-flags')1220	home := temp_repo('steal-flags-home')1221	defer {1222		os.rmdir_all(syncroot) or {}1223		os.rmdir_all(home) or {}1224	}1225	a := os.join_path(syncroot, 'A', 'proj')1226	os.mkdir_all(a) or { panic(err) }1227	init_repo(a)1228	assert run_home(a, home, 'remote', 'folder', os.join_path(syncroot, 'remote')).code == 01229	write(a, 'a.txt', 'one\n')1230	id := run_home(a, home, 'save', 'risky', '--json').out.all_after('"id":"')[..12]1231	assert run_home(a, home, 'flag', id, '--reason', 'broke the build').code == 01232	assert run_home(a, home, 'offer').code == 01233	for name in ['B', 'C'] {1234		os.mkdir_all(os.join_path(syncroot, name)) or { panic(err) }1235	}1236	json_stolen := run_home(os.join_path(syncroot, 'B'), home, 'steal', 'proj', '--json')1237	assert json_stolen.code == 01238	assert json_stolen.out.contains('"flagged":["${id}"]')1239	text_stolen := run_home(os.join_path(syncroot, 'C'), home, 'steal', 'proj')1240	assert text_stolen.code == 01241	assert text_stolen.out.contains('[${id}] came in flagged — broke the build')1242}12431244// A folder remote on a disk or share that is not mounted is simply not there.1245// Creating it would put the saves in a stand-in folder the other machine never1246// sees; the offer must say what is wrong instead.1247fn test_an_unmounted_folder_remote_is_not_recreated() {1248	syncroot := temp_repo('unmounted')1249	home := temp_repo('unmounted-home')1250	defer {1251		os.rmdir_all(syncroot) or {}1252		os.rmdir_all(home) or {}1253	}1254	mount := os.join_path(syncroot, 'nas')1255	remote := os.join_path(mount, 'koh')1256	a := os.join_path(syncroot, 'proj')1257	os.mkdir_all(a) or { panic(err) }1258	init_repo(a)1259	assert run_home(a, home, 'remote', 'folder', remote).code == 01260	write(a, 'a.txt', 'one\n')1261	assert run_home(a, home, 'save', 'first').code == 01262	os.rename(mount, os.join_path(syncroot, 'nas-unplugged')) or { panic(err) }1263	os.mkdir(mount) or { panic(err) }1264	offered := run_home(a, home, 'offer')1265	assert offered.code == 11266	assert offered.err.contains('mounted')1267	assert !os.exists(remote)1268	write(a, 'a.txt', 'two\n')1269	saved := run_home(a, home, 'save', 'second')1270	assert saved.code == 01271	assert saved.out.contains('mounted')1272	assert !os.exists(remote)1273}12741275fn test_man_and_koh2_handoff() {1276	dir := temp_repo('man')1277	home := temp_repo('man-home')1278	defer {1279		os.rmdir_all(dir) or {}1280		os.rmdir_all(home) or {}1281	}1282	whole := run_home(dir, home, 'man')1283	assert whole.code == 01284	assert whole.out.contains('NAME')1285	assert whole.out.contains('COMMANDS')1286	assert whole.out.contains('STRICT KOH DISCIPLINE')1287	assert !whole.out.contains('\x1b') && !whole.out.contains('◆')1288	strip := run_home(dir, home, 'man', 'strip')1289	assert strip.code == 01290	assert strip.out.contains('strip')1291	assert !strip.out.contains('koh save ')1292	steal := run_home(dir, home, 'man', 'steal').out1293	assert steal.starts_with('    koh steal') && steal.contains('koh steal my-project')1294	assert run_home(dir, home, 'man', 'init').out.trim_space() == "koh init\n        Create `.koh` here, and a starter `.kohignore` if there isn't one."1295	assert run_home(dir, home, 'man', 'nonsense').code == 21296	legacy := temp_repo('legacy')1297	defer { os.rmdir_all(legacy) or {} }1298	os.mkdir_all(os.join_path(legacy, '.koh')) or { panic(err) }1299	fake := os.join_path(home, 'bin')1300	os.mkdir_all(fake) or { panic(err) }1301	fake_koh := os.join_path(fake, 'koh2')1302	os.write_file(fake_koh, '#!/bin/sh\nprintf "handoff:%s\\n" "$*"\nexit 7\n') or { panic(err) }1303	os.chmod(fake_koh, 0o755) or { panic(err) }1304	handoff := run_home_with_path(legacy, home, fake, 'status', '--json')1305	assert handoff.code == 71306	assert handoff.out.contains('handoff:status --json')1307	// One notice line, on stderr, so koh2's own output stays as it was.1308	assert handoff.err.contains('Koh 2 repo')1309	assert handoff.err.trim_space().split_into_lines().len == 11310	assert handoff.out.trim_space() == 'handoff:status --json'1311}13121313fn run_home_with_path(repo string, home string, bin_dir string, args ...string) Result {1314	stamp := '${os.getpid()}-${time.now().unix_nano()}'1315	base := os.join_path(os.temp_dir(), 'koh3-cli-${stamp}')1316	out_path := '${base}.out'1317	err_path := '${base}.err'1318	code_path := '${base}.code'1319	mut command := 'HOME=${q(home)} PATH=${q(bin_dir + ':' + os.getenv('PATH'))} ${q(binary)}'1320	for arg in args {1321		command += ' ${q(arg)}'1322	}1323	shell := 'cd ${q(repo)} && ${command} </dev/null >${q(out_path)} 2>${q(err_path)}; printf "%s" \$? >${q(code_path)}'1324	result := os.execute(shell)1325	if result.exit_code != 0 {1326		panic('could not run test command: ${result.output}')1327	}1328	code := os.read_file(code_path) or { panic(err) }1329	out := os.read_file(out_path) or { '' }1330	err := os.read_file(err_path) or { '' }1331	os.rm(out_path) or {}1332	os.rm(err_path) or {}1333	os.rm(code_path) or {}1334	return Result{1335		code: code.int()1336		out:  out1337		err:  err1338	}1339}13401341// --- migration -------------------------------------------------------------13421343fn koh2_binary() string {1344	return os.find_abs_path_of_executable('koh') or { '' }1345}13461347// run_koh2 runs the Koh 2 binary in a fixture; its own output is not under1348// test here.1349fn run_koh2(dir string, command string) {1350	os.execute('cd ${q(dir)} && ${command} >/dev/null 2>&1')1351}13521353fn save_ids(dir string) []string {1354	mut ids := []string{}1355	for name in os.ls(os.join_path(dir, '.koh', 'snapshots')) or { []string{} } {1356		if name.ends_with('.json') {1357			ids << name.trim_right('.json')1358		}1359	}1360	ids.sort()1361	return ids1362}13631364fn test_migrate_converts_a_koh2_repo_and_keeps_every_save() {1365	koh2 := koh2_binary()1366	if koh2 == '' {1367		println('skipping the migration tests: koh (Koh 2) is not on PATH')1368		return1369	}1370	dir := temp_repo('migrate')1371	defer { os.rmdir_all(dir) or {} }1372	home := temp_repo('migrate-home')1373	defer { os.rmdir_all(home) or {} }1374	run_koh2(dir, '${q(koh2)} init')1375	// One file large enough to be an object, one small enough to be inlined.1376	write(dir, 'code.txt', 'x'.repeat(700))1377	write(dir, 'tiny.txt', 'tiny\n')1378	run_koh2(dir, '${q(koh2)} save "first save"')1379	run_koh2(dir, '${q(koh2)} checkpoint "before something"')1380	write(dir, 'code.txt', 'y'.repeat(700))1381	run_koh2(dir, '${q(koh2)} save "second save"')1382	original := save_ids(dir)1383	assert original.len == 313841385	report := run_home(dir, home, 'migrate')1386	assert report.code == 01387	assert report.out.contains('migrated 3 saves')1388	// The swap: `.koh` is a file, the old data is archived, nothing is left in the draft.1389	assert os.is_file(os.join_path(dir, '.koh'))1390	assert os.is_dir(os.join_path(dir, '.koh-v2'))1391	assert os.is_file(os.join_path(dir, '.kohignore'))1392	assert !os.exists(os.join_path(dir, '.koh-migrate'))13931394	// Every save kept its original ID, and the new repo is sound.1395	listed := run_home(dir, home, 'view', '--json')1396	assert listed.code == 01397	for id in original {1398		assert listed.out.contains(id)1399	}1400	assert run_home(dir, home, 'doctor').code == 01401	assert run_home(dir, home, 'status').code == 014021403	// Migrating again has nothing to convert.1404	assert run_home(dir, home, 'migrate').code == 11405}14061407fn test_migrate_refuses_a_tree_that_does_not_match_the_last_save() {1408	koh2 := koh2_binary()1409	if koh2 == '' {1410		return1411	}1412	dir := temp_repo('migrate-dirty')1413	defer { os.rmdir_all(dir) or {} }1414	home := temp_repo('migrate-dirty-home')1415	defer { os.rmdir_all(home) or {} }1416	run_koh2(dir, '${q(koh2)} init')1417	write(dir, 'code.txt', 'x'.repeat(700))1418	run_koh2(dir, '${q(koh2)} save "only save"')1419	write(dir, 'code.txt', 'unsaved change\n')14201421	refused := run_home(dir, home, 'migrate')1422	assert refused.code == 11423	assert refused.err.contains('save with koh2 first')1424	// Nothing moved: still Koh 2, no archive, no draft file.1425	assert os.is_dir(os.join_path(dir, '.koh'))1426	assert !os.exists(os.join_path(dir, '.koh-v2'))1427	assert !os.exists(os.join_path(dir, '.koh-migrate'))1428}14291430// Koh 2 never saved a root `.kohconfig`, root `.kohignore.<remote>` rules or1431// `*.bundle` files, so a clean Koh 2 repo may hold them. Most real repos have1432// a `.kohconfig`; migrate must not call them unsaved work.1433fn test_migrate_passes_over_the_files_koh2_never_saved() {1434	koh2 := koh2_binary()1435	if koh2 == '' {1436		return1437	}1438	dir := temp_repo('migrate-koh2-ignores')1439	defer { os.rmdir_all(dir) or {} }1440	home := temp_repo('migrate-koh2-ignores-home')1441	defer { os.rmdir_all(home) or {} }1442	run_koh2(dir, '${q(koh2)} init')1443	write(dir, 'code.txt', 'x'.repeat(700))1444	run_koh2(dir, '${q(koh2)} save "only save"')1445	write(dir, '.kohconfig', 'stable_days = 14\n')1446	write(dir, '.kohignore.public', 'private/\n')1447	write(dir, 'lib/app.bundle', 'bundle\n')1448	write(dir, 'ios/Settings.bundle/Root.plist', 'settings\n')1449	// Koh 2 keeps saving a file under a folder pattern added later, where1450	// Koh 3 reads the same rule as covering the folder: the saved file is on1451	// disk and matches, so the tree is clean.1452	write(dir, 'native/t.dSYM/Info.plist', 'plist\n')1453	run_koh2(dir, '${q(koh2)} save --agent test --session test "add the dsym"')1454	// Koh 2 skips *.bundle even when its rules no longer list it.1455	ignore_path := os.join_path(dir, '.koh', 'ignore')1456	rules := os.read_file(ignore_path)!.split_into_lines().filter(it != '*.bundle')1457	os.write_file(ignore_path, rules.join('\n') + '\nnative/*.dSYM\n')!1458	// A saved file the walk skips still has to match what was saved.1459	write(dir, 'native/t.dSYM/Info.plist', 'changed\n')1460	changed := run_home(dir, home, 'migrate')1461	assert changed.code == 11462	assert changed.err.contains('native/t.dSYM/Info.plist does not match')1463	write(dir, 'native/t.dSYM/Info.plist', 'plist\n')1464	assert os.execute('cd ${q(dir)} && ${q(koh2)} status --json').output.contains('"dirty":false')14651466	migrated := run_home(dir, home, 'migrate')1467	assert migrated.code == 0, migrated.err1468	// They stay where they were, for the user to keep or delete.1469	assert os.read_file(os.join_path(dir, '.kohconfig'))! == 'stable_days = 14\n'1470}14711472struct FakeKepr {1473	no_access bool1474	// One reply the redemption must cope with: '500', 'garbage' or 'incomplete'.1475	fail string1476	// When set, /api/connect answers 307 here instead of a code reply.1477	redirect_to string1478mut:1479	objects map[string][]u81480	// What the client asked for. A map, because the server holds its own copy of this struct.1481	seen map[string]string1482}14831484fn (mut h FakeKepr) handle(req http.Request) http.Response {1485	if req.method == .post && req.url == '/api/connect' {1486		h.seen['code'] = req.data1487		if h.redirect_to != '' {1488			return http.Response{1489				status_code: 3071490				status_msg:  'Temporary Redirect'1491				header:      http.new_header(1492					key:   .location1493					value: h.redirect_to1494				)1495			}1496		}1497		if h.fail == '500' {1498			return http.Response{ status_code: 500, status_msg: 'Internal Server Error' }1499		}1500		if h.fail == 'garbage' {1501			return http.Response{ status_code: 200, status_msg: 'OK', body: 'not json at all' }1502		}1503		if h.fail == 'incomplete' {1504			return http.Response{ status_code: 200, status_msg: 'OK', body: '{"endpoint":"http://x","bucket":"","region":"","access_key_id":"","secret_access_key":""}' }1505		}1506		if req.data == 'code=good' && !h.no_access {1507			return http.Response{ status_code: 200, status_msg: 'OK', body: '{"endpoint":"http://${req.header.get_custom('Host', http.HeaderQueryConfig{}) or { '' }}","bucket":"bucket","region":"test","access_key_id":"access","secret_access_key":"secret"}' }1508		}1509		return http.Response{ status_code: 404, status_msg: 'Not Found', body: '{"error":"no_code","message":"no code"}' }1510	}1511	if req.method == .get && req.url.starts_with('/connect') {1512		h.seen['connect'] = req.url1513		return http.Response{ status_code: if h.no_access { 404 } else { 302 }, status_msg: 'Found' }1514	}1515	key := req.url1516	if key.starts_with('/bucket/') {1517		match req.method {1518			.put {1519				if req.header.get_custom('If-None-Match', http.HeaderQueryConfig{}) or { '' } == '*' && key in h.objects {1520					return http.Response{ status_code: 412, status_msg: 'Precondition Failed' }1521				}1522				h.objects[key] = req.data.bytes()1523				return http.Response{ status_code: 200, status_msg: 'OK' }1524			}1525			.get {1526				if body := h.objects[key] {1527					return http.Response{1528						status_code: 2001529						status_msg:  'OK'1530						body:        body.bytestr()1531						header:      http.new_header(1532							key:   .etag1533							value: '"tag"'1534						)1535					}1536				}1537				return http.Response{ status_code: 404, status_msg: 'Not Found' }1538			}1539			.delete {1540				h.objects.delete(key)1541				return http.Response{ status_code: 204, status_msg: 'No Content' }1542			}1543			else {}1544		}1545	}1546	return http.Response{ status_code: 404, status_msg: 'Not Found' }1547}15481549fn start_fake_kepr(no_access bool, fail string, redirect_to string) !(int, &http.Server, &FakeKepr) {1550	for port in 19401 .. 19411 {1551		listener := net.listen_tcp(.ip, '127.0.0.1:${port}') or { continue }1552		fake := &FakeKepr{1553			no_access:   no_access1554			fail:        fail1555			redirect_to: redirect_to1556			seen:        map[string]string{}1557		}1558		mut server := &http.Server{1559			listener:             listener1560			handler:              fake1561			show_startup_message: false1562		}1563		spawn server.listen_and_serve()1564		server.wait_till_running()!1565		return port, server, fake1566	}1567	return error('no free fake Kepr port')1568}15691570// A slash makes an argument an address, so half an address is an error and never a repo name.1571fn test_steal_refuses_an_address_that_is_not_one() {1572	outside := temp_repo('steal-address')1573	home := temp_repo('steal-address-home')1574	defer { os.rmdir_all(outside) or {} }1575	defer { os.rmdir_all(home) or {} }1576	// The repo half becomes a URL path segment and a folder here, so it is a name Kepr serves.1577	for bad in ['kepr.uk/', '/shipped', 'kepr.uk/..', 'kepr.uk/.', 'kepr.uk/a b', 'kepr.uk/nina?x',1578		'kepr.uk/nina#x', 'kepr.uk/nína'] {1579		refused := run_home(outside, home, 'steal', bad)1580		assert refused.code == 1, bad1581		assert refused.err.contains('is not <host>/<repo>'), '${bad}: ${refused.err}'1582	}1583	assert run_home(outside, home, 'steal', 'one', 'two').code == 21584	assert run_home(outside, home, 'steal', '--list', 'extra').code == 21585}15861587fn test_remote_kepr_saves_and_refuses_without_changes() {1588	repo := temp_repo('kepr')1589	home := temp_repo('kepr-home')1590	defer { os.rmdir_all(repo) or {} }1591	defer { os.rmdir_all(home) or {} }1592	init_repo(repo)1593	port, mut server, fake := start_fake_kepr(false, '', '')!1594	defer { server.stop() }1595	host := 'http://127.0.0.1:${port}'1596	// A trailing slash is the same host, and the saved line keeps the normalised form.1597	good := run_home(repo, home, 'remote', '${host}/', '--code', 'good')1598	assert good.code == 0, good.err1599	remote_path := os.join_path(home, '.config', 'koh', 'remote')1600	credentials_path := os.join_path(home, '.config', 'koh', 'credentials')1601	assert os.read_file(remote_path)! == '# written by koh remote — the remote for every repo on this machine\nkind=s3\nendpoint=${host}\nbucket=bucket\nregion=test\nkepr=${host}\n'1602	assert os.read_file(credentials_path)! == '# written by koh remote — keep this file private\naccess_key=access\nsecret_key=secret\n'1603	// The code went as a form field, and the connect page was never asked for: there was a code.1604	assert (fake.seen['code'] or { '' }) == 'code=good'1605	assert (fake.seen['connect'] or { '' }) == ''1606	// A refused code, a missing terminal and a wrong reply all leave both files as they were.1607	before := os.read_file(remote_path)!1608	before_keys := os.read_file(credentials_path)!1609	bad := run_home(repo, home, 'remote', host, '--code', 'bad')1610	assert bad.code == 11611	assert bad.err.contains('wrong or has expired')1612	// The 404 could also mean a Kepr that hands out nothing, so the connect page is asked for1613	// with this machine's name. (This machine's name holds no character needing an escape, so1614	// that part of the query cannot be exercised here.)1615	// `machine.name()` is `os.hostname() or { 'unknown' }`, so the query carries the same text.1616	assert (fake.seen['connect'] or { '' }).contains('machine=${os.hostname() or { 'unknown' }}')1617	no_terminal := run_home(repo, home, 'remote', host)1618	assert no_terminal.code == 11619	assert no_terminal.err.contains('needs a terminal')1620	assert os.read_file(remote_path)! == before1621	assert os.read_file(credentials_path)! == before_keys1622}16231624fn test_remote_kepr_refuses_hosts_that_are_not_hosts() {1625	repo := temp_repo('kepr-host')1626	home := temp_repo('kepr-host-home')1627	defer { os.rmdir_all(repo) or {} }1628	defer { os.rmdir_all(home) or {} }1629	init_repo(repo)1630	for host in ['kepr.uk/foo', 'https://kepr.uk?x=1', 'kepr.uk#frag', '[email protected]', 'kepr uk',1631		'http://127.0.0.1:1/foo', 'https://'] {1632		refused := run_home(repo, home, 'remote', host, '--code', 'good')1633		assert refused.code == 1, host1634		assert refused.err.contains('is not a Kepr address'), '${host}: ${refused.err}'1635	}1636	// The reply carries the bucket's secret key, so plain http is only for this machine's own Kepr.1637	for host in ['http://kepr.uk', 'http://10.0.0.2:3000', 'http://KEPR.uk:80'] {1638		refused := run_home(repo, home, 'remote', host, '--code', 'good')1639		assert refused.code == 1, host1640		assert refused.err.contains('needs https'), '${host}: ${refused.err}'1641		stolen := run_home(home, home, 'steal', '${host}/nina')1642		assert stolen.code == 1, host1643		assert stolen.err.contains('needs https'), '${host}: ${stolen.err}'1644	}1645	// --code belongs to the host form alone.1646	assert run_home(repo, home, 'remote', 's3', 'https://x', 'b', 'r', '--code', 'good').code == 21647	assert run_home(repo, home, 'remote', 'folder', '/tmp', '--code', 'good').code == 21648	assert run_home(repo, home, 'remote', '--code', 'good').code == 21649	assert !os.exists(os.join_path(home, '.config', 'koh', 'remote'))1650}16511652fn test_remote_kepr_refuses_what_is_not_a_code_reply() {1653	repo := temp_repo('kepr-reply')1654	home := temp_repo('kepr-reply-home')1655	defer { os.rmdir_all(repo) or {} }1656	defer { os.rmdir_all(home) or {} }1657	init_repo(repo)1658	remote_path := os.join_path(home, '.config', 'koh', 'remote')1659	for mode in ['500', 'garbage', 'incomplete'] {1660		port, mut server, _ := start_fake_kepr(false, mode, '')!1661		refused := run_home(repo, home, 'remote', 'http://127.0.0.1:${port}', '--code', 'good')1662		server.stop()1663		assert refused.code == 1, mode1664		assert refused.err.contains('nothing was changed'), '${mode}: ${refused.err}'1665		assert !os.exists(remote_path)1666	}1667	// A redirect would hand the code to wherever it points, so it is refused and never followed.1668	target_port, mut target, target_fake := start_fake_kepr(false, '', '')!1669	port, mut server, _ := start_fake_kepr(false, '', 'http://127.0.0.1:${target_port}/api/connect')!1670	redirected := run_home(repo, home, 'remote', 'http://127.0.0.1:${port}', '--code', 'good')1671	server.stop()1672	target.stop()1673	assert redirected.code == 11674	assert redirected.err.contains('refused the code')1675	assert target_fake.seen.len == 0, 'the code was forwarded: ${target_fake.seen}'1676	assert !os.exists(remote_path)1677}16781679// An unreachable Kepr is a refusal too, and the settings are still untouched.1680fn test_remote_kepr_that_cannot_be_reached_changes_nothing() {1681	repo := temp_repo('kepr-down')1682	home := temp_repo('kepr-down-home')1683	defer { os.rmdir_all(repo) or {} }1684	defer { os.rmdir_all(home) or {} }1685	init_repo(repo)1686	refused := run_home(repo, home, 'remote', 'http://127.0.0.1:1', '--code', 'good')1687	assert refused.code == 11688	assert refused.err.contains('could not reach Kepr')1689	assert !os.exists(os.join_path(home, '.config', 'koh', 'remote'))1690}16911692fn test_remote_kepr_without_bucket_access_is_explained() {1693	repo := temp_repo('kepr-no-access')1694	home := temp_repo('kepr-no-access-home')1695	defer { os.rmdir_all(repo) or {} }1696	defer { os.rmdir_all(home) or {} }1697	init_repo(repo)1698	port, mut server, _ := start_fake_kepr(true, '', '')!1699	defer { server.stop() }1700	r := run_home(repo, home, 'remote', 'http://127.0.0.1:${port}', '--code', 'bad')1701	assert r.code == 11702	assert r.err.contains("doesn't hand out bucket access")1703	assert !os.exists(os.join_path(home, '.config', 'koh', 'remote'))1704}