325 Commits
Author SHA1 Message Date
bbassieandClaude Opus 5.5 513d964a8b Remove scenario.lua when unpatching a save
Unpatching moves scenario.lua back to control.lua instead of copying it, so the save only keeps clusterio.json for the patch number. Patching such a save again copies control.lua back to scenario.lua.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-04 17:21:19 +00:00
bbassieandClaude Opus 5.5 ca3dbab49d Unpatch saves started with save patching disabled
Turning factorio.enable_save_patching off did nothing to a save that
was patched before. Its control.lua still loaded every module, so the
clusterio_api interface, player_sync's join handling and the other
module event handlers kept running with no plugin on the host side.

When patching is disabled the instance now restores the original
control.lua that patching kept as scenario.lua and removes the module
files, locale files included, as listed in clusterio.json. The patch
info stays with an empty module list so the patch number keeps
counting. Otherwise patching the save again would reuse the number
stored in the game and on_server_startup would not be raised. Data
the modules put in storage is left alone.

PatchInfo.fromSave dropped the version read from the save, so the
check against newer patch versions never fired. It now keeps it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-04 00:16:52 +00:00
024d7b427a Rename safeOutputFile to atomicOverwriteFile (#1167)
"safe" suggested the data being written survives a crash, it only
guarantees the old file is either kept or fully replaced. The new name
says what it does. No alias, plugin API breaks are allowed in minor
versions and the 2.1 migration guide lists the rename.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Cooldude2606 <25043174+Cooldude2606@users.noreply.github.com>
2026-11-01 23:14:31 +00:00
bbassieandClaude Opus 5.5 f8aafe9265 Address review on findVersion and the export graphics lookup
findVersion takes headless as a plain optional argument, the helper is
checkInstallType, the warning is checkMissingBuiltinIcons and the full
install lookup is inlined into exportData.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 22:44:43 +00:00
bbassieandClaude Opus 5.5 37d74ca2a6 Find a full install in host.factorio_directory instead of a setting
Per review, drop host.factorio_graphics_directory. findVersion takes a
headless option that filters installs by build, telling them apart by
data/base/graphics/icons. When the instance runs the headless build the
export looks for a full install of the same major.minor version in the
host's factorio directory. Server startup is unchanged.

If none is found the export still runs, and the reason is included in
the missing icons warning.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 20:53:05 +00:00
Danielv123 46c6153201 Export without the graphics directory when it has no matching install
If host.factorio_graphics_directory had no install matching the major and
minor version of the instance, or did not exist, findVersion threw and the
whole export failed. Without the setting the same instance exports everything
except the base game icons, so it now logs a warning that names the setting
and exports without it.
2026-11-01 18:33:10 +01:00
Danielv123 46fd7fcad4 Merge remote-tracking branch 'origin/master' into fix/headless-export-icons 2026-11-01 18:32:20 +01:00
Daniel 88855251e9 Merge pull request #1176 from clusterio/fix/export-skip-broken-icons
Skip icons that fail to export instead of failing the export
2026-11-01 18:24:58 +01:00
Danielv123 495831da29 Stop waiting for approval when the terminal closes
SIGHUP while waiting for approval released the config lock but left the
host polling, as only SIGINT and SIGTERM stopped the wait.
2026-11-01 12:07:34 +01:00
Danielv123 7ada2e8975 Skip icons that fail to export instead of failing the export
An icon that could not be read or decoded, such as a truncated PNG, a
JPEG or a layered icon with no layers, threw out of exportIcons and
failed the whole data export. Log a warning naming the prototype and
export it without an icon instead. Also warn when a mod's zip is
missing while exporting the locale, which was skipped silently.
2026-10-31 23:26:39 +01:00
Danielv123 49a0b27d29 Address review of host pairing
Revoking a host now unassigns its instances instead of being refused
while it has any, and removes its system metrics.

Approving and revoking no longer force a save. Hosts are saved by
autosave and on exit like everything else, which also removes the
approving state from pairing requests.

The approval code and link are logged as warnings so they show up in
the systemd service, which only prints warnings and above. The pairing
limits are now the controller.host_pairing_timeout and
controller.host_pairing_max_pending config values, 0 removes the limit.

Subscribers take an optional permitted function, used for the pairing
requests instead of overrides in a subclass.
2026-10-31 16:31:45 +01:00
Danielv123 95422e6d21 Merge remote-tracking branch 'origin/master' into host-pairing
# Conflicts:
#	packages/host/host.ts
2026-10-30 21:50:38 +01:00
Cooldude2606andClaude Opus 5.5 9b654b1ad8 Start the controller and host CLIs faster (#1159)
* Answer the disconnect prepare in the close old connections test

The test's first connector had no Link, so the controller's disconnect
prepare went unanswered and it waited the full 10 s timeout.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Start the controller and host CLIs faster

Like ctl, the controller and host now compile schema validators on first
use instead of at import, which cost about 120 ms per invocation. The
Controller and Host classes are only imported by the commands that
start them, so config, bootstrap and the other commands no longer load
express, ws and the rest of the servers. clusteriocontroller config set
goes from 413 ms to 231 ms and clusteriohost config set from 412 ms to
225 ms.

The integration tests run the bins, like npx does, instead of the
package directories.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-30 20:43:33 +00:00
Bastiaan e7c21fb907 Merge pull request #1150 from bbassie/fix/node-engine-range
Require Node.js 22.18 or 24.2 for import.meta.main
2026-10-30 20:41:37 +00:00
Danielv123 2cf7c66187 Merge remote-tracking branch 'origin/master' into host-pairing
# Conflicts:
#	test/integration/clusterio.js
2026-10-30 21:41:06 +01:00
Cooldude2606andClaude Opus 5.5 3707fc35fc Drop unused dependencies from web_ui and tests (#1163)
* Take FieldData from antd instead of rc-field-form

web_ui depended on rc-field-form 1.x for a single type import, while
antd 5 uses rc-field-form 2.x. Derive the type from antd's FormProps
and drop the dependency.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Move typescript to web_ui devDependencies

web_ui only needs typescript to build its own types. The runtime
dependency is a leftover from webpack's ts-loader, Vite doesn't use it,
and it pulls in a 30 MB native compiler for anyone installing web_ui.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Use native FormData in controller route tests

Node's FormData and Blob do what the form-data package did here, and
fetch sets the multipart Content-Type header itself.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Remove leftover typedoc.json files

TypeDoc was dropped in #1147, but these configs still ship in the
published packages.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-30 20:29:12 +00:00
BastiaanandClaude Opus 5.5 0f7c8be060 Use only the jimp modules the host export needs (#1162)
jimp pulls in every image format and plugin, about 60 packages and
26 MB that only export.ts uses. Build the Jimp class from @jimp/core
with the PNG format and the crop and resize plugins instead. The
generated spritesheet is byte-identical to the one from jimp.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-30 20:24:07 +00:00
Danielv123 13c75b9e35 Link to an approval dialog from the waiting host
A host waiting for approval logs a link to the Hosts page with the code
in it. Opening it shows a dialog with the code, the address of the host,
a name prefilled with the requested one and a large Approve button. A
code that is no longer waiting shows a message saying so.
2026-10-30 21:23:03 +01:00
Danielv123 4a49a198f0 Pair hosts when they start instead of in the installer
The installer only writes the controller URL and host name. Running the
host requests to join the cluster if it has not been approved yet, or if
the controller no longer accepts its token, and waits until an admin
approves it. Once approved it saves its id and token and starts as
normal. A rejected host exits with code 8.

clusteriohost run --user-token approves the host right away with the
token of a user allowed to approve hosts. The token is not saved.

This moves the pairing client into the host package, where it uses the
same certificate setup as the host's connection to the controller, and
removes --no-pair and the rerun handling from the installer.
2026-10-30 21:13:14 +01:00
bbassieandClaude Opus 5.5 8738c74d7f Remove leftover typedoc.json files
TypeDoc was dropped in #1147, but these configs still ship in the
published packages.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-30 18:44:54 +00:00
bbassieandClaude Opus 5.5 0312a3b099 Start the controller and host CLIs faster
Like ctl, the controller and host now compile schema validators on first
use instead of at import, which cost about 120 ms per invocation. The
Controller and Host classes are only imported by the commands that
start them, so config, bootstrap and the other commands no longer load
express, ws and the rest of the servers. clusteriocontroller config set
goes from 413 ms to 231 ms and clusteriohost config set from 412 ms to
225 ms.

The integration tests run the bins, like npx does, instead of the
package directories.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-30 17:29:42 +00:00
Danielv123 87d4f5c64e Replace host tokens with host pairing
Hosts join the cluster by running the installer, which shows a code and
waits until the request is approved under Hosts > Add host in the web
interface or with clusterioctl host approve. An admin can pass their
user token to the installer to approve the host right away. The token
is only used for that and is not saved.

The controller only accepts hosts that have a record, and only
approving a host creates one. Revoking a host deletes its record, so
its token can no longer be used to reconnect. Hosts that have connected
before keep working.

Removes host generate-token, revoke-token and create-config from
clusterioctl, bootstrap generate-host-token, the host token messages and
the core.host.generate_token, revoke_token and create_config
permissions, which are also stripped from stored roles. Adds
clusterioctl host pending, approve, reject and revoke, and the
core.host.approve and core.host.revoke permissions.

Standalone installs add the host to the controller database directly,
since the controller is not running during the install.
2026-10-30 06:11:32 +01:00
bbassieandClaude Opus 5.5 5238a0fbb3 Report missing base game icons when exporting from headless Factorio
The headless build has no graphics, so export-data found none of the
base game's icon files. Plain icons were skipped silently and layered
icons were drawn blank and counted as exported.

Skip a layered icon when any of its layers is missing, and log one
warning with the number of base game icon files that were not found.
Add host.factorio_graphics_directory to read builtin mod graphics from
a full install when the instance runs the headless build.

Fixes #1068

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-30 00:02:52 +00:00
bbassieandClaude Opus 5.5 eb1e2e2a5e Wait for a start in progress before stopping an instance
A stop request sent while the instance was starting ran alongside the
start. During save preparation it did nothing and the instance came up
running anyway. Once Factorio was launched it put the server into the
stopping state, the start then failed with "Expected state running but
state is stopping" and its cleanup killed the server mid shutdown.

Stop and restart requests now wait for any start, stop or save in
progress to finish first, then stop the instance if it is running.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-29 22:52:09 +00:00
bbassieandClaude Opus 5.5 11e067a933 Keep auto paused instances paused
Every RCON command makes an auto paused Factorio server run one tick, so
subspace_storage's 1 s inventory update and 5 s ping, plus a
statistics_exporter gather on every Prometheus scrape, kept a server with
nobody online running at about 1.3 ticks per second.

The instance now records the auto_pause server setting it was started
with and exposes autoPaused, true while that setting is on and no players
are online, along with an autoPauseChanged hook. subspace_storage skips
its timers while paused and sends a ping and inventory as soon as a player
joins. statistics_exporter gathers once after the game pauses and keeps
serving those values until it resumes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-28 23:40:30 +00:00
bbassieandClaude Opus 5.5 54e9340e61 Add UnavailableError and keep the PermissionError name
Host not connected, host shutting down and instance not running are
now UnavailableError (503) instead of ConflictError. The request error
migration notes move to a new 2.1 guide, since this ships in 2.1.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-27 22:03:13 +00:00
bbassieandClaude Opus 5.5 1c7c00b033 Keep error classes across links
Error responses now carry the registered name of the thrown error's
class, and the requester rejects with an instance of that class instead
of a generic RequestError. Error classes are registered like message
classes, and plugins list their own in `errors`.

RequestError is replaced by a hierarchy following the HTTP status codes:
ClientError (ValidationError, ForbiddenError, NotFoundError,
TimeoutError, ConflictError) and ServerError (InternalServerError).
PermissionError is PermissionDeniedError and the config errors
InvalidValue, InvalidField and InvalidAccess gain an Error suffix.

Link logs only errors whose class is not registered. These arrive on the
other side as InternalServerError with the original message and stack,
so an error forwarded through the controller is logged once, where it
was thrown.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-27 22:03:13 +00:00
Bastiaan ffe82f81d8 Merge pull request #1010 from bbassie/feature/plugin-browser
Plugin management through web interface
2026-10-27 21:32:51 +00:00
Cooldude2606 e36a76acc5 Merge pull request #1129 from bbassie/refactor/async-factory
Replace bootstrap methods with async factories
2026-10-27 21:31:49 +00:00
Cooldude2606 bda5c5a8c0 Merge pull request #1128 from bbassie/remove-find-unused-name
Remove lib.findUnusedName
2026-10-27 21:31:21 +00:00
Cooldude2606 7fa511873b Prepare 2.0.3 2026-10-25 20:15:27 +00:00
bbassieandClaude Opus 5.5 abb04f3258 Create FactorioServer and Instance through async factories
FactorioServer.fromOptions finds the Factorio install and generates the
RCON password before constructing, so _version and _dataDir are never
null and setTargetVersion and init are gone. checkForUpdates is now a
module function called before fromOptions.

Instance.fromConfig resolves the version, downloads Factorio if needed
and builds the server, then constructs the instance with it. It runs
before the instance is connected, so the starting and stopped statuses
and the version requests go through the host link. FactorioVersionsRequest
and LatestReleasesRequest now accept host as a source, and the host
tracks starting instances so a second start during a download is
rejected. Plugin loading stays a separate loadPlugins step after the
instance is connected.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 00:11:22 +00:00
bbassieandClaude Opus 5.5 3a81cfd94b Order fromConfig arguments config first
Controller.fromConfig and Host.fromConfig now take the config, then the
plugin infos, then the logger or connector.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 00:05:32 +00:00
bbassieandClaude Opus 5.5 d7fc3aaec4 Replace bootstrap methods with async factories
Controller.bootstrap and Host.bootstrap returned constructor arguments
that the caller had to spread into new Controller/Host, and
DatastoreProvider.bootstrap did the same for datastores. They are
replaced by Controller.fromConfig, Host.fromConfig and
KeyValueDatastore/SubscribableDatastore.fromProvider, which load the
data and return the finished instance.

Closes #1126

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-23 23:51:22 +00:00
bbassieandClaude Opus 5.5 5355a0170a Use the exclusive move for save rename and widen its copy fallback
Fall back to copying on any link error except EEXIST, since filesystems
without hard links report it with several codes (EISDIR on exFAT under
Windows, ENOSYS on some FUSE mounts). Rename now goes through the same
move so it also gets the fallback and the rollback. Only report a
missing source save on transfer when the source is actually missing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 00:22:17 +01:00
bbassieandClaude Opus 5.5 e16d0bc410 Address review of save transfer and instance dir naming
Instance dir and save names are tried without a retry cap, as on master
and in downloadFile, so an 11th instance named "New Instance" still gets
a folder.

Moves fall back to an exclusive copy when hard links are unavailable
(EXDEV, EPERM, ENOTSUP), and remove the new target if the source can't
be unlinked, so a failed move leaves no duplicate.

Local transfers keep appending .zip to the target name, as
findUnusedName did.

The copy auto-rename test now checks that the existing target save is
left untouched.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 00:22:17 +01:00
a6d2d48e48 Remove lib.findUnusedName
The name it returns may already be taken by a concurrently running process
by the time the caller uses it. Callers now try the name and retry with a
-2, -3, ... suffix on EEXIST instead.

Save transfers previously renamed with fs.rename, which silently overwrites
a save that appears at the target, and copied without COPYFILE_EXCL. Moves
now use link + unlink like save rename does, and copies pass COPYFILE_EXCL,
so both fail with EEXIST rather than overwrite.

Supersedes #880.

Co-authored-by: Hornwitser <code@hornwitser.no>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 00:22:17 +01:00
BastiaanandClaude Opus 5.5 43243eab86 Bump dependency versions (#1113)
Raise the catalog and package.json floors to the latest release within
each major, and move typebox to 0.34, react-router-dom to 7,
winston-daily-rotate-file to 5, webpack-dev-middleware to 8 and
webpack-manifest-plugin to 6. None of these need code changes.

express 5.3.0 requires proxy-addr ^2.0.8 and qs ^6.16.0, which puts a
floor under the critical proxy-addr and high qs advisories for anyone
installing the published packages. webpack-dev-middleware 8 fixes a
high advisory in the controller's dev mode, and react-router 7 fixes two
moderate ones.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17 20:48:08 +01:00
Cooldude2606 ba800e853d Merge pull request #996 from bbassie/feature/instance-udp
Add UDP communication support for instances
2026-10-17 20:47:54 +01:00
Cooldude2606 5e2ecdd143 Merge pull request #1061 from bbassie/feature/inventory-sync-components
Allow inventory sync components to be turned off per instance
2026-10-17 19:45:19 +01:00
BastiaanandClaude Opus 5.5 c28e617b22 Replace jszip with yauzl and yazl (#1011)
* Replace jszip with yauzl and yazl

jszip loads a whole archive into memory to read it and buffers the
output when writing.  Saves and mods can be several hundred megabytes,
so read zips with yauzl, which only reads the central directory and
streams entries on demand, and write them with yazl, which streams the
output.

lib gains a ZipArchive wrapper around yauzl with the lookup helpers the
callers need, findRoot() now takes it instead of a JSZip.  Saves are
patched by streaming every kept entry into a new zip, mod info.json is
read straight from the file, exports are streamed to the controller and
Factorio zip downloads go through a temp file instead of a buffer.

Patching now inflates and deflates each entry again where jszip reused
the compressed data, on a 336 MB synthetic save that is 7 s instead of
0.7 s, with peak memory going from 416 MB to 151 MB.

Closes #1002

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* Copy save entries without recompressing them

yazl inflates and deflates every entry it is given, so patching a save
took ten times longer than with jszip, which reused the compressed
data.  Add a ZipWriter to lib that streams entries out as they are
added and copies entries from a ZipArchive byte for byte, with ZIP64
structures when sizes or offsets need them, and use it in patch().

On a 336 MB synthetic save patching now takes 0.4 s at 143 MB peak RSS
against 0.75 s at 417 MB with jszip.  Factorio loads the result.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* Handle save write errors before the patch loop awaits them

A write error on the temporary save, such as a full disk, rejected the
pipeline promise while addEntry() or addBuffer() was still pending. Nothing
was listening yet, so the host's unhandledRejection handler exited the
process instead of failing the instance start.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Keep the export zip cache local to each export

The cache was module level, so when two instances on one host exported at
once, the first to finish closed archives the other was still reading.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Start writing zips before adding files from disk

yazl reads files passed to addFile() as soon as they are added. An
unreadable file emitted an error while the directory traversal was still
running, before the output pipeline existed, and the process exited on the
uncaught error. build_mod and zipDirectory now start the pipeline first and
reject instead. build_mod also removes the partial zip on failure.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-17 21:44:19 +03:00
bbassieandClaude Opus 5.5 a1a57b8c97 Place synced items from a list of stacks instead of script inventories
place_items no longer creates script inventories for what does not fit. Each serialized inventory is split at the size of its destination: the slots that fit are restored slot for slot and the rest become serialized stacks, which are inserted into the free space of the same inventory and then main, guns, ammo and armor. What is still left over is returned as a list and spill_items puts it into a corpse sized to hold it. This keeps 1.0 out of reach of game.create_inventory.

The armor-first fill order is gone, as the bonus slots from armor equipment only apply on the next tick anyway (#1106). Filters are no longer stripped for destinations, they are the same inventory type the data came from.

deserialize_inventory concatenated the filter table in its error print on 2.0, which errored out the whole restore when an inventory did not support filters.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17 15:36:22 +00:00
bbassieandClaude Opus 5.5 0a6f614074 Fix Lua UDP before startup and without script commands
send_udp and get_host_udp_port indexed script data that is only created
on the first tick after patching, so calling them from on_init stopped
the server. They now return nothing until then.

Received packets were only polled once the host port was known, which
needs script commands. Poll whenever recv_udp exists instead, it does
nothing when the server runs without --enable-lua-udp.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17 10:29:35 +00:00
bbassieandClaude Opus 5.5 25c3c9991e Log synchronous throws from handleUdp handlers
The listener runs from the socket callback, so a non-async handler that
threw before returning a promise reached the unhandled error handler and
took down the host.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17 10:29:21 +00:00
e3a684ff3b Download each Factorio version only once at a time (#1107)
* Download each Factorio version only once at a time

Instances starting together each downloaded the new version into the same
.tmp file and extracted into the same version directory, corrupting the
install. Keep the downloads in progress in a map by target directory and
let later callers wait on the existing download.

Fixes #1105

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RhMv1AxB8EZdyZoSJhyNmY

* Wait for a download in progress whose version looks installed

The changelog is extracted partway through the archive, so a server
checking during the extraction saw the version as installed and could
start the half-extracted install. Treat a version with a download in
progress as not installed, so the server waits on that download.

Hold the mocked download open in the concurrency tests and wait for the
second server to reach the waiting path instead of relying on a delay.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RhMv1AxB8EZdyZoSJhyNmY

---------

Co-authored-by: ILLISIS <jayson.harris01@gmail.com>
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-16 20:38:07 +03:00
30b00b4715 Keep spoil percent when serializing item stacks (#1096)
serialize_item_stack did not store the spoil percent and
deserialize_item_stack did not pass it to set_stack, so spoilable items
arrived fresh after a transfer. Store it when above 0 and restore it. The
percent is used instead of spoil_tick since tick counts differ between servers.

Co-authored-by: ILLISIS <jayson.harris01@gmail.com>
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-16 14:33:10 +03:00
bbassieandClaude Fable 5.1 8bfc42c44c Lower the Lua UDP floor to Factorio 2.1.10
Danielv123 pointed out the recv_udp crash was fixed in 2.1.10, not
2.1.12: recv_udp used an input action for synchronisation which the
headless server could not send without a player index.  Verified on
downloaded headless builds, 2.1.9 crashes and 2.1.10 works.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-15 16:38:34 +00:00
bbassieandClaude Fable 5.1 1f37905be0 Require Factorio 2.1.12 for Lua UDP
Factorio 2.0.59 through 2.1.11 crash with "Trying to add invalid input
action to the closure" when helpers.recv_udp dispatches a received
packet, whether polled from on_tick or called from a command and
whether or not the server is paused.  Reproduced on headless 2.0.77 and
2.1.8, works from 2.1.12 on.  FactorioServer now refuses to start with
Lua UDP enabled on older versions, the docs say 2.1.12, and the
integration tests only enable it on 2.1.12 or later.

The to-game integration test polls recv_udp from on_tick like the
clusterio module does and sends commands to make the empty server tick.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-15 16:38:34 +00:00
bbassieandClaude Fable 5.1 7a64706c82 Send raw payloads over UDP and emit them as udp events
Review feedback from Cooldude2606: UDP is most useful for arbitrary
blobs, so send_udp now takes any string and the packet is just
"channel?payload".  Plugins get it as a udp-<channel> event with the
payload as a Buffer, or through handleUdp which logs handler errors
like handle does for ipc events.

The host socket is now opened when the RCON client is started and
closed where the RCON client is ended, matching how the RCON client is
handled, instead of being bound in start() and closed by _resetState.

The integration round trip moved to the FactorioServer tests, where it
sends a packet each way through a real server without the module.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-15 16:38:34 +00:00
bbassieandClaude Fable 5.1 788ae17657 Add UDP communication support for instances
Add opt-in UDP messaging between the host and the Factorio server using
the --enable-lua-udp option of Factorio 2.0.59+.  When
factorio.enable_lua_udp is set the instance binds a localhost UDP socket,
starts Factorio with --enable-lua-udp on factorio.lua_udp_port (random
if null, like the RCON port) and tells the clusterio module the host port
via clusterio_private.update_instance.

Data from Factorio is sent with clusterio_api.send_udp(channel, data) in
the same IPC format as send_json, so plugins receive it through the
existing ipc-<channel> events.  Packets not sent from the Lua UDP port
are ignored, as that is the only unauthenticated way into the IPC
handler.  Data to Factorio is sent with the new sendUdp method on
instances and instance plugins, and is dispatched in-game as
on_udp_packet_received events by polling helpers.recv_udp every tick
from the clusterio module.

Plugins requiring UDP declare the new LuaUdp feature flag, which like
SavePatching and ScriptCommands refuses to load the plugin on instances
without the option enabled.

Verified against a headless 2.1.17 server: send_udp and recv_udp are
silent no-ops when the option is off, so a stale port in a save that is
moved to an instance without UDP does no harm.  The integration test
matrix now starts the instance with UDP enabled on Factorio 2.0.59+ and
round trips a player event over it.

Closes #969

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-15 16:38:28 +00:00