* fix(studio-server): one process at a time keeps a project's history open
* fix(studio-server): taking over a dead history owner never removes a live owner's lock
Two processes that both found the owner dead could each take the lock,
the second removing the first's. Eviction now happens under its own lock
with a re-read, a close removes the lock only while it names the closer,
and a lock file holding no pid counts as dead.
* fix(studio-server): a history lock that cannot be read fails the open instead of spinning
* fix(studio): preview lookups find the element the timeline bound when an id repeats
* fix(studio): preview lookups prefer the element's own file, and a pasted element gets its own hf-id
* fix(studio): scrub audio, panel reads and gestures act on the bound element, one scan per pass
* refactor(studio): one owner for the selected node lookup, and scrub indexes only audio
* fix(studio): the panel's tween list matches class tweens against the selected element itself
* fix(studio): every project opens its preview at Fit, and a zoom says so
Preview zoom was one saved value for every project, so a single pinch
made each project open at 245%. It now lasts only while the project is
open. While the preview is not at Fit, a chip at the top says how far it
is zoomed with a Fit button, and a navigator shows the visible part.
* fix(studio): Fit keeps the selection, and the zoom chip and navigator follow review
A click on Fit no longer reaches the pane that clears the timeline
selection, focus returns to the preview, one rule decides at-Fit, and a
project switch resets the zoom before paint.
* chore(studio): the zoom change keeps each file's comment share at or under main's
* refactor(studio): the zoom chip and navigator live beside the preview, under the file size cap
* perf(player): let paused players check in once a second with low-power-idle
* refactor(player): trim low-power-idle comments and tidy its test
* fix(core): keep the fast paused heartbeat until a timeline is bound
* fix(core): wait for sub-compositions to bind before slowing the paused heartbeat
* fix(core): a seek during playback lands a playing video on the new time
* fix(core): the seek fix passes the comment ratchet without a new comment
* fix(core): keep why a pausing seek still lands, folded into the paragraph above
---------
Co-authored-by: Miguel Angel Simon Sierra <miguelangelsisi098@gmail.com>
* fix(studio): a timeline row binds to its own composition's element when an id repeats
* fix(studio): keep the scoped lookup's comments within the file's comment share
* fix(studio): a unique id stays bound through a healed host, and Layers re-finds in its own file
* fix(studio): try every lookup in the clip's composition before a lone match
* perf(studio): skip the id selector when the id is not in the document
* feat(studio-server): an undo taken from Studio is not mistaken for an outside edit
* feat(studio): undo and redo step through the project history, whoever made the change
* feat(studio): the dev server keeps each project history, in the same folder as preview
* fix(studio-server): an undo that deletes a file reads as Studio's, and dev histories close
* fix(studio-server): a claim keeps an agent's earlier write the agent's and takes back Studio's own
* chore: allow the removal of Studio's browser edit history files
* test(studio): mock the project history in the runtime smoke
* fix(studio): step past a jammed undo and say why a step fails
* fix(studio-server): an agent turn cut by a claim commits its part before the claim
* fix(studio-server): a claim's cut ends a held drag and takes only the cut files out of a turn
* fix(studio-server): a held drag ends when someone else changed a file it already holds
* ci(studio): bank the open-journey counts after #4401 and allow a reasoned raise
* fix(studio): render a missing preview poster whichever of the 404 and the live frame comes first
* fix(producer): give each parallel segmented-capture worker its own browser
Segmented capture with two or more workers failed at the first frame with
"Invalid JPEG input at frame 0: empty frame". Every worker opened its page in
one pooled Chrome, and beginFrame capture does not survive a shared browser:
a worker's first beginFrame returned no screenshot. Fresh worker sessions now
follow shouldDisableBrowserPoolForParallelWorker, the rule the parallel disk
path already uses.
The default session factory was also built once per worker, so with a probe
session every worker reused that same page. It is now built once per run, so
only the first worker takes the probe.
Workers are now created inside the try, so when a later worker fails to
launch, the finally still closes the browsers opened before it.
* fix(producer): close a segmented worker session whose initialization fails
The default segmented session factory opened a fresh browser and then
initialized it with nothing owning it on failure, so a page-load or init
timeout leaked that Chrome. It now closes the session and rethrows, as the
streaming stage does.
* ci(studio): gate Studio open and timeline scroll on work counts that only go down
Beside the timeline viewport gate's ms budgets, count the work two Studio journeys do and hold
each count under a checked-in ceiling in perf-ceilings.json: thumbnail renders, page loads and
requests for opening a 12-scene film, and React commits, style recalcs and layouts per scroll
tick. Counts repeat exactly run to run, so a rise names the work that grew.
* ci(studio): hold style recalcs per scroll tick at the CI runner's count
* ci(studio): gate the median scroll run and list which thumbnails rendered
* ci(studio): set work-count ceilings from the CI runner's counts on main
* ci(studio): fail the open count loudly when Studio never starts
* ci(studio): fail a work-count gate that measured nothing
* ci(studio): a scroll counter missing from any measured run reads as not measured
* ci(studio): split the perf ratchet's CLI and page counters into small steps, and let its unit test count
* ci(studio): count scroll work in an untimed pass and commit the open fixture's scenes
* ci(studio): gate only the open journey's counts; scroll counts follow runner speed
* ci(studio): fail a dropped journey and an unreadable base in the work-count ratchet
* ci(studio): split the ratchet's checks into small functions
* feat(core): a composition's script can load its own files with __hyperframes.assetUrl
* test(core): a template composition inside a mounted file resolves assets from that file
* docs: assetUrl is for paths beside the composition, not project-root paths
* docs: say assetUrl misses a project-root path
* fix(core): a mounted composition's import map and module scripts run as such
* refactor(core): scope a mounted module script under the same condition as a classic one
* fix(core): a mounted module script loaded by src stays a module
* fix(core): a mounted import map keeps the trailing slash of a prefix address
* fix(registry): six blocks load their own files and variables when mounted
* fix(registry): keep frost's variable declarations on its html element
* fix(registry): cuboid-carousel plays from the start when mounted
* fix(registry): orbit-card uses its own variables; frost font and catalog maps follow
* chore(core): keep the module-script helpers' comment share at the base
* fix(catalog): frost's payload runs its driving script, not the asset-base one
* test(catalog): check import-map keys by membership, not a built regex
* fix(sdk): read a composition's variables from its root when its html has none
* fix(registry): three blocks declare their variables on their own root so they work mounted
* fix: composition metadata and lint also read variables declared on the root
* fix(sdk): keep root declarations on the root through undo and prefer them like the runtime
* fix(sdk): read variables from both <html> and the root, editing each where declared
* docs(cli): explain how catalog search works and which model it downloads
* docs(cli): name the model catalog search was chosen against
* docs(cli): keep only live rules in the word-search header comment
* docs(cli): correct the hosted vector size in the local vector build comment
* feat(core): a composition's script can load its own files with __hyperframes.assetUrl
* test(core): a template composition inside a mounted file resolves assets from that file
* docs: assetUrl is for paths beside the composition, not project-root paths
* docs: say assetUrl misses a project-root path
* fix(core): a mounted composition's import map and module scripts run as such
* refactor(core): scope a mounted module script under the same condition as a classic one
* fix(core): a mounted module script loaded by src stays a module
* fix(core): a mounted import map keeps the trailing slash of a prefix address
* fix(registry): six blocks load their own files and variables when mounted
* fix(registry): keep frost's variable declarations on its html element
* fix(registry): orbit-card uses its own variables; frost font and catalog maps follow
* chore(core): keep the module-script helpers' comment share at the base
* fix(catalog): frost's payload runs its driving script, not the asset-base one
* test(catalog): check import-map keys by membership, not a built regex
* perf(studio): keep lint off the preview open path
The bundler linted every build only to print a StaticGuard warning; a preview bundle now
skips it through a staticGuard option, since Studio lints on its own route. That route now
lints in the CLI child-process worker the render path already uses, so seconds of parsing
no longer stall the preview and every other Studio request on the server event loop.
* perf(parsers): parse identical GSAP source once
Studio re-requests the parsed animations of unchanged source on every open, and several lint
rules parse the same script in one run. A small memo keyed by the script text serves repeats;
each caller gets its own copy.
* perf(studio): build each preview document once per content version
The preview route rebuilt the document for every browser without a cached copy. It now serves
one build per ETag from memory, and the CLI keeps the last build on disk salted with its own
file, so a restarted server serves the previous document without stale code.
* perf(studio): build the opening film's preview while the browser starts
The preview server built the document only when the player asked for it, after
Studio had booted, so a first open waited about a second of idle server time.
The CLI now requests the opening project's preview right after listening, and
requests that arrive while a build runs share it instead of starting another.
* perf(studio): request the preview document at page load
Studio asked for the preview only once the player mounted, about 640 ms into a
first open. It now requests it the moment the page loads, and again when the
hash names another project, so the build or cache read overlaps Studio's boot.
* feat(studio): show the cached frame 0 while the live preview boots
Studio covers the live preview with frame 0 as the thumbnail route last rendered it, sized
from the image so the stage does not shift, and removes it when the live frame is ready to
show. The request is cache-only, so a miss never starts a render on the open path; the
missing poster is rendered after the live frame shows, for the next open.
* perf(cli): start Studio before the startup lint finishes
hyperframes preview linted the whole project before it listened, 4 to 6 s on a large film, and
did so in --json mode where the result is discarded. The lint now runs in the CLI worker while
Studio starts and prints its summary when done; --json skips it.
* perf(studio): render thumbnails from one loaded page, after the preview boots
Every thumbnail opened a page and loaded the whole composition to shoot one frame, and the
Compositions card asked for one while the live preview was still booting. The server now keeps
one loaded page per preview document and seeks it per frame, reloading only when the project
changes; card thumbnails wait for the project first ready preview.
* perf(studio): parse GSAP animations after the preview boots
Studio asked the server to parse the composition animations while the preview was opening; on
a fresh server that cold parse ran on the event loop ahead of the preview build. The request
now waits for the live preview to boot, or to fail loading, since only keyframes need it.
* perf(cli): find orphaned browsers with one process-table read
preview ran pgrep three times and then ps once per matching browser, all
synchronously before listening: about half a second on a machine running
other headless Chrome. One ps listing now finds every orphan in ~20 ms.
* perf(studio): keep lint off the boot
Opening a project started two lint processes while Studio booted: the
terminal's startup lint and Studio's background lint, ~4 s of CPU next to the
boot. Studio's background lint now waits until the live preview has booted,
and lint processes run at the lowest CPU priority so they only take idle CPU.
* perf(studio): open the editing session after the preview boots
Opening a project read the composition source and parsed it for the editing
session (linkedom plus hf-id assignment) on the main thread while the live
preview was booting on the same thread: ~300 ms on a large film. The session
now opens once the preview has booted; nothing the first frame shows needs it.
* perf(studio): park the editor overlays until the preview boots
The overlay frame loop polled preview geometry and off-canvas indicators from
the first frame, forcing layout on a preview document that was still loading,
on the thread its boot runs on: ~200 ms before the first frame on a large film.
The loop now skips its subscribers until the preview has booted, then wakes.
* perf(studio): treat the preview as booted once it can play
Work deferred until the boot (editing session, lint, overlays, GSAP parse,
card thumbnails) started at timeline-ready, which fires before the asset gate,
so the editing-session parse ran inside the wait for play. The Player now
latches the boot when the preview can show and play, or fails to load.
* fix(studio): keep a left project's deferred work out of the one now open
Deferred open-time work (source parse, background lint, editing session) waited on one global
boot flag, so leaving a project before its preview booted let the next project's boot run the
old project's work and write its results. The wait is now per project and resolves false once
another project opens. A preview stuck without an error stops deferring that work after 5 s.
* perf(cli): let the play page revalidate instead of refetching
hyperframes play served the composition, its assets, the player and the runtime with no
validator, so every reload refetched everything, the mp4 in full three times. They now carry
an ETag and stay no-cache, so unchanged bytes cost a 304 and an edit is still seen.
* fix(cli): serve an edited text asset even when its size and mtime match
The play page tagged every asset by mtime and size, so a same-size rewrite within one
filesystem tick kept the old tag and the browser kept stale bytes. Text assets now get a
content-hash tag; media keeps the mtime and size tag Studio already uses.
* fix(studio): close idle thumbnail pages so an idle Studio runs no composition
Kept-loaded thumbnail pages stayed open for the life of the server, each running a live composition,
so an idle Studio cost server CPU and memory that main does not. A page now closes after 10 s unused,
and a page is closed only after the frame still running on it finishes.
* fix(studio): stop a first open from reloading the preview once per scene file
Studio stamped hf-ids into a composition the first time that composition was served, so opening a
film of external scenes wrote to index.html and every scene file mid-session. Each write reached
Studio as an outside edit and reloaded the preview, which failed for a large film. The server now
stamps every composition once before it starts watching the project.
* fix(studio): ignore play until the preview can play, so it is never undone
Space (and any play() caller) could start playback before the preview frame finished loading. Its
load step then paused and rewound to the restore point, so the play was silently lost. play() now
waits for timelineReady, the same gate the Play button already uses.
* fix(studio): hold play on a composition switch until the new preview loads
Readiness was reset only when the project changed. Drilling into another composition kept the
old ready flag while the new preview loaded, so Play or Space could start a play that its load
step then undid.
* refactor(studio): split background lint and thumbnail page reuse into single-purpose steps
Keeps the boot wait in the background lint only, moves page lookup and idle close out of
withPage, and drops a suppression the startup worker no longer needs. Behaviour unchanged.
* chore(cli): declare the render-setup worker as a fallow entry
It is spawned by path from cancellableProcess.ts, so it has no import-graph referrer; the entry list
is where the repo records that, replacing the per-file ignore removed in the previous commit.
* fix(cli): close a thumbnail page whose load fails
The page never leaves the promise that loads it, so when the load throws (a WebGPU composition with
no adapter, or the navigation timeout on a big film) nothing could close it.
* fix(cli): match text assets by exact type and keep Range on them
The pattern anchored only its first alternative, and text assets skipped buildRangeResponse, so a
ranged request for a stylesheet or SVG got a full 200.
* test: open the next project as Studio does, and read the stamped file once
The absent-read guard test switched project without beginning its timeline session, so the
per-project boot wait held the read. The stamp test checked then read the same file.
* test(cli): rewrite the scene file without opening it first
Opening the file by path counted as a check before the later read of the same path.
* perf(cli): take a thumbnail's version from the cached project signature
Each thumbnail walked the project and hashed every text file for its page version; the adapter
already caches that signature and clears it from the watcher. An aborted request now also stops
before its screenshot.
* fix(studio): keep Play off until the preview's load step has run
Play could enable before the preview document's load event, from the runtime's timeline message
or from the blank page's load step settling on the preview's first message. The load step then
paused and rewound the preview, so a Play pressed in between did nothing; a film with large
images loads late enough for this to hit a cold open. Readiness now waits for the document's load
step, whichever path asks for it.
* refactor(studio): move the preview poster's state into usePreviewPoster
NLEPreview.tsx passed the 600-line limit once main grew it; the poster's state and callbacks belong
beside PreviewPoster. No behaviour change.
* fix(cli): take an earlier thumbnail on a fresh page
A composition need not draw the same frame when seeked back, so a kept page that had shown 20 s
drew a different 10 s thumbnail than a fresh load. A kept page now only seeks forward, as a render
does; an earlier time loads a fresh page.
* perf(cli): close a kept thumbnail page a second after its last frame
Held for 10 s, the page went on running its composition after the open's thumbnail
burst, about 5 % of a core in the thumbnail browser while Studio sat idle. A burst's
requests arrive back to back, so it still loads the page once.
* fix(studio): count the preview as booted at its first frame
The boot waited for every video and audio in the preview to finish buffering, which on a
project with media took until the 5 s fallback. The thumbnails, editing session and lint
that wait for the boot then started seconds late and kept an idle Studio busy. They now
start once the first frame is up; media finishes buffering alongside.
* perf(studio): render one thumbnail per composition for its card and clip
A composition's sidebar card asked for its frame at 3.00 s and its timeline clip for the
clip's midpoint, so opening a project rendered every scene twice. The clip now asks for the
card's frame (the midpoint still, for compositions under 3 s), and the thumbnail cache
serves both from one render: 20 scene renders drop to 12 on a 12-scene project.
* chore: keep each changed file's comment share at or under main's
The comment ratchet counts the comment lines this branch added. Each is cut, or kept as one
line where it states an invariant (the GSAP parse cache returns copies; the boot starts waiting
work at the first frame). The orphan-cleanup docblock is condensed and now names the process-table
read it uses instead of the pgrep scan it replaced. No code line changed.
* fix(studio): keep a 3 s clip off its end frame and give card and clip one encoded URL
A composition exactly 3 s long asked for its thumbnail at 3.00 s, its end instant, which after a
fade-out is an empty frame; compositions of 3 s or less now use their midpoint. The card built its
thumbnail URL from the raw path while the clip encoded it, so names with & + [ or % asked for two
different URLs, and a % in the name made the card's request fail on the server; both now encode.
The readiness comment says the boot latches at the first frame, as it has since the boot moved.
* fix(studio): encode the card's live preview URL too, and document the bundler's static guard
The card's hover preview built its URL from the raw composition path, so a % in the file name made
the preview route fail to decode it. The card now builds its composition URL in one place, encoded,
for both its thumbnail and its hover preview. The static-guard bundle option keeps a one-line doc
(its default and what it warns about); a neighbouring docblock is rewrapped to keep the comment
share.
* test(cli): mock studio-server once so the signature spy and the history hook both apply
The main merge brought a second vi.mock of @hyperframes/studio-server into studioServer.test.ts;
the later one replaced the first, so createProjectSignature was no longer a spy and the cached
signature test read .mock of undefined. One mock now carries both overrides.
* fix(sdk): read a composition's variables from its root when its html has none
* fix: composition metadata and lint also read variables declared on the root
* fix(sdk): keep root declarations on the root through undo and prefer them like the runtime
* fix(sdk): read variables from both <html> and the root, editing each where declared
* feat(core): a composition's script can load its own files with __hyperframes.assetUrl
* test(core): a template composition inside a mounted file resolves assets from that file
* docs: assetUrl is for paths beside the composition, not project-root paths
* docs: say assetUrl misses a project-root path
* fix(core): a mounted composition's import map and module scripts run as such
* refactor(core): scope a mounted module script under the same condition as a classic one
* fix(core): a mounted module script loaded by src stays a module
* fix(core): a mounted import map keeps the trailing slash of a prefix address
* chore(core): keep the module-script helpers' comment share at the base
* fix(core): paint no timed clip until the runtime decides its visibility
Until its first visibility pass, a paused page showed every timed clip at once: an embed without
a loader flashed a later scene before the first, and a player's hidden iframe still decoded every
scene's images. The runtime now hides timed non-media clips from the moment its script runs,
and the first pass that decides them removes that rule, so each clip is shown only by the pass.
* refactor(core): name media with the realm-safe helper in the first-pass check
* fix(core): share the first-pass hide across runtime copies and shader captures
A second evaluation of the runtime (a sub-composition carrying its own runtime tag, or a page that
includes it twice) added a hide rule nothing removed, so the film stayed invisible. The rule and its
flag now live on the page: a copy that finds either, or finds the runtime already initialised, adds
none, and the first pass removes every copy. HyperShader's capture clone forces its scene visible
with !important, so a transition captured before the first pass still shows the scene's clips.
The runtime test now also pins evaluation-time hiding, inline visibility, media, and two copies.
* fix(core): grade media inside a clip once the first pass shows it
Color grading registers only media it can see. Media with no timing of its own inside a timed clip
inherited the first-pass hide, so grading skipped it, and lifting the rule is not a body mutation,
so nothing registered it again: the image or video stayed ungraded. The pass now refreshes grading
when it lifts the rule. The second-copy test now asserts on a paused page, before any seek.
* chore(core): keep the comment share of the first-pass hide files at or under their base
The comment ratchet counts one added comment line each in entry.ts, init.ts and capture.ts, and a
new file above its package's share. The three lines are gone, and the one note that has to stay
(why the hide runs at script evaluation) now lives in the new module's shorter header.
* fix(studio): a playhead scrolled off to the left no longer draws over the track names
The playhead layer (z 100) drew over the sticky track headers when the timeline was scrolled past it. Once a scroll settles, its layer is clipped at the header edge, less the glow's half-width so 00:00 looks as before. The settle-time scroll subscription moves out of the ruler into useSettledScrollLeft, now shared by both.
* test(studio): find the timeline playhead through its layer, not its z-index
* feat(core): a composition's script can load its own files with __hyperframes.assetUrl
* test(core): a template composition inside a mounted file resolves assets from that file
* docs: assetUrl is for paths beside the composition, not project-root paths
* docs: say assetUrl misses a project-root path
* feat(studio-server): preview keeps a project history and names the next undo and redo
The history engine now reaches `hyperframes preview`, and its routes tell
Studio what Cmd+Z and Cmd+Shift+Z would revert next.
- The CLI preview server gives the shared API a project history, opened
on first use under ~/.cache/hyperframes/history (overridable with
historyRoot), and its file watcher feeds every change it sees to it.
Shutdown closes it, so open windows are committed, within the same
bounded wait as renders, so a history still opening cannot hold exit.
- GET /projects/:id/history also returns `back` and `forward`: the entry
each step would revert, with its label, for the Undo and Redo buttons.
- POST /projects/:id/history/window takes an optional idleMs, so a drag's
burst of writes can share one window that ends by itself (capped at
10 minutes, below where a timer overflows).
Nothing in Studio calls these yet.
* feat(studio-server): a writer that records after writing can claim its writes
Studio records an edit after writing it, and many of its writes are
server mutations deep in its save paths, so opening a window before each
write would restructure them. claim() fits that order instead.
- ProjectHistory.claim(who, label, paths, { coalesceKey?, idleMs? })
sweeps now and moves the not yet committed outside changes to `paths`
into one entry of who's, under the edit's label. Other outside writes
stay outside.
- Claims with one coalesceKey merge into one entry (a drag's burst) until
a claim with another key, idleMs (default quietMs) without one, or any
operation; Cmd+Z right after a drag undoes all of it.
- The ceiling is named where it lives: another writer's write to a
claimed file between Studio's write and its claim folds into Studio's
entry, and a write filed to another writer's open window stays there.
- Route: POST /projects/:id/history/claim { label, paths, coalesceKey?,
idleMs? } -> { claimed: { id } | null }.
* fix(studio-server): a drag back to its start claims nothing, and next steps name their files
Deleting a sub-composition clip left it drawn on the timeline indefinitely. The preview still held the removed host until its reload landed, composition enrichment re-read it from there and put it back, and the merge then kept it on every shorter scan. The delete now takes its clips out of the live preview at once, and updates the timeline right after its write instead of after the ripple finishes saving; a ripple that fails to save puts the gap back.
The catalog already loads every item's manifest, preview included, but the
--json rows dropped it, so an app listing the catalog had no way to show an
item before add downloads it. Rows now carry preview when the item has one.
An edit that reloads the preview used to stop playback: the reload saved the
time, paused the live frame and marked the player paused, and the promoted
document started paused. Now forward playback runs on in the live frame while
the new document loads. At promotion the new document takes the live frame's
time, so playback, a stop at the end or a seek made during the load carries
over, and it keeps playing if the live frame was, unless the edit cut the film short of that time. A paused film, a reverse
shuttle and a dropped reload behave as before.
Miguel Ángel