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* Wake reads waiting on /log, event and pty/data; one reader per consuming ↵Gabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | file; pty/ctl reads back A read parked on a queue was retried only when some unrelated write had to wait, so a follower of /log (and a reader of event or pty/data) slept until then. Pushing a record now marks the turn parked, and giving the turn up wakes them (measured: stuck past 3 s before, 0 s after). event and pty/data consume what they read, so a second open for reading is refused with rio's "file in use" (EBUSY through 9ns); writers still get in, and pty/data queues output only for an actual reader. pty/ctl reads back "winsize C R", in the words it takes. /log fixes from review: a record longer than a read comes in pieces (a shell read loop failed on long lines), every repeated message is logged, a record bigger than the ring is cut to fit instead of emptying it, the ring is reserved at boot so recording never allocates, and panes present at boot are recorded first. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* Record /log whether or not anyone reads it, with the editor's messages in itGabriel Schneider2 days
| | | | | | | | | | | | | | | /log is now one ring (64 KiB, 4 KiB on the board) that records new, del, rename and save, and a msg line for everything the editor says. An open freezes it, so cat log shows what happened lately and ends; writing follow to that same open makes reads past it wait for newer records, and a follower the ring outran reads lost N first. The message log keeps the pane's serial, not its reusable slot. A test now fails when the tree serves a file /README never mentions; it caught pty/status, now documented along with typing through pty/data. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* Replace a stillborn placeholder pane when a pane joins its column, and focus ↵Gabriel Schneider2 days
| | | | | | | | | | | | | the pane a directional Del grows A pane that joins a column whose only other pane is an untouched empty scratch (Newcol's, or the stand-in a closed column leaves) takes the column whole. Checked at the end of the step, since the pane that asked for the joiner is often the placeholder itself. Del k|j focuses the pane that took the rows. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* Ease a message into its row fast first, its colour ahead of it, and out slow ↵Gabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | first A message fell in on t*t, an ease-in: it hung near its start for the first frames and was still moving at its fastest when it hit the row, a sixth of a row in its last frame. It now decelerates into place with an ease-out cubic, slide = -(1-t)^3: a quarter of the way in the first frame, and the last frames only settle it. There is no overshoot. At a row's height and the dozen frames of the 180 ms fall, a follow-through is a pixel or two, which reads as a jitter rather than a bounce. MessageFall keeps its 180 ms: the ease-out puts the chip where it is going within about 100 ms. The colour leads the motion: alpha = 1 - (1 - min(1, 2t))^2, whole by half way, so what lands is already legible. The SDL shell used to show the chip solid while it slid and fade it only on the way out; it now fades it up with the same alpha, and the rule under a chip carries the chip's fade (a new TagLayer.fade) instead of standing solid while the chip comes or goes. The dissolve was an ease-out, (1-t)^2: it lost a tenth of its colour in the first frame and spent its last frames nearly invisible. An exit eases in instead, alpha = 1 - t^2 over the same 300 ms: it lets go gently and leaves faster and faster. t is now counted to the last frame, so that frame shows it gone rather than it blinking out from 0.3%. 1 - t^3 was the other candidate; in captures it held the chip nearly untouched for half the dissolve after the linger had already held it, then dropped a sixth of its colour a frame, which reads as a pop. It stays in place: the lines stacked around it do not move, and a drift would read as it leaving its row. The test pins the shapes: a fast first step into the row, never past it, solid by half way; a dissolve whose first drop is smaller than its last and which ends at exactly nothing. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
* Ask from the keyboard which neighbour a closed pane's rows go toGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | Del takes a side: `Del k` gives the closed pane's rows to the nearest expanded pane above it, `Del j` to the one below, each falling back to the other side when it has none. DelAbove and DelBelow are those two lines, with no path of their own under SPC. A bare Del started from a key -- SPC d, Enter on the tag word, a row run from an output buffer -- on a pane with expanded panes both above and below asks instead of guessing. The question is a prompt like Save's or a search's (Pane.Prompt.del_side), so it is painted on the pane's notice band by the same path, and the next key answers it before any mode sees it: k or Up, j or Down, anything else keeps the pane, as does a click. Only a key press sets Pardes.can_ask, so a click, a 9P ctl or event write, a startup line, a restore and a shell exiting all close the pane at once, the rows going where layout.absorbVWeight has always sent them. A collapsed pane is not asked about (it has only a tag row to give), and collapsed neighbours are passed over (layout.expandedNeighbor, which Collapse now uses too). removePane and absorbVWeight take the recipient; every other caller passes null. Three scripts that closed a middle pane with SPC d answer k, which is where the rows went before, and their goldens are unchanged. delask.snap covers the question, Esc, j, a clicked DelBelow and a clicked Del. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
* Paint a prompt on its notice band, not on the body gridGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | A builtin that asks for input (Save's path, a search, a pipe) shows its prompt as a notice chip, like Msg output and the leader chord. Messages and the chord went through a tag layer, which is what gives a chip the tagline's height, pitch and band offset; the prompt alone stayed on the grid so its caret could sit on a cell. A pixel shell therefore drew its tagline glyphs one to a BODY cell, spaced out like a banner, while the chips around it were set tight. The prompt is now a band like the others and carries its caret on the layer, at the same place in the text the grid pass puts it. The grid still paints it, for terminal clients. What a band says comes from one place, noticeText, which the grid pass and the layer pass both read, and what a prompt says from one place, Pane.promptText, which collectNotices, the painters and submitSearch share. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
* Light a held column grip, and rail its landing beside the rule where the GUI ↵Gabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | shows it The column grip worked in the GUI but showed nothing anyone could see. Driving the real SDL window with pixel mouse events, press, drag and release all reach the core and reorder or resize the column; the feedback is what failed. The grip kept its muted color while held, and a reorder's insertion rail was drawn in the gutter cell at the destination edge. The GUI paints that cell as the column's scroll rail, and at the window's left edge, the common case of moving the right column first, the dashes were lost in it. From the leftmost column, a drag short of a neighbour's middle shows no rail, rightly, since nothing would move, but nothing said the grip was even held. A held grip now lights in column_box, the accent its muted color is mixed from, and the rail takes that color. The rail runs in the seam cell left of where the column's rule will land, where a border drag's rail runs, for a reorder and a left-edge move alike; at the window's left edge, which has no seam, it runs just past the scroll rail, leaving column 0's grip and pane boxes whole. A carried column's pointer aims at a place, not a word, so the column tags no longer light the word under it, and a release snaps the layout as a border drag's does rather than animating it. The preview and the release both ask layout.columnDrop where the column goes, so the rail stands where the release puts the edge, and the drag no longer carries its unused column index. The GUI test feed takes ESC]777;mouse;<down|up|motion>;<button>;<x>;<y> in window pixels and dispatches it as an SDL event. test/column_grip.py uses it to drive the grip through the same pixel-to-cell and tag hit path as a hand on the mouse, and checks the grip, the rail and the result against GPU captures and the 9P grid. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
* Shape text with HarfBuzz, so a font's programming ligatures draw across ↵Gabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | their cells The SDL shell rasterized every cell by its own codepoint, so a font's `->`, `!=` or `<=` ligature never appeared. Text is now shaped with HarfBuzz 11.0.0, built from source like FreeType: a lazy build.zig.zon dependency (the tarball Ghostty pins) compiled only for the gui shell, its FreeType integration linked against the freetype package, so the binary carries no system HarfBuzz or FreeType and a tty build never compiles it. Shaping turns on only the font's ligature features (liga, calt, clig, rlig, rclt); composition, local forms and fractions stay off, so a cell draws either its nominal glyph, as it always did, or part of a ligature. A glyph no lookup of those features covers cannot change, so its cell is resolved alone, and that resolution is cached by codepoint: in a font without ligatures (Adwaita Mono) no cell is ever shaped, and the pipeline draws pixel for pixel as before. A cell whose glyph a ligature could replace is shaped with its word: the cells between spaces that share a decoration and a role. A word ends either side of the cursor, block or bar, so the cell being edited shows its own character (Ghostty's rule), and inside f|i, f|l and s|t, whose typographic ligatures do not belong on a grid (Ghostty again). Colours never end a word: a ligature spans a syntax colour change or a selection edge. A codepoint the primary font lacks shapes in the fallback face that has it. Taglines are not shaped: they are drawn at two pitches, and a strip would not line up in one. HarfBuzz only chooses glyphs; the grid places them. A substituted glyph whose ink reaches over neighbouring cells that draw nothing of their own (the spacer glyphs of Fira Code-style fonts such as Maple Mono, or the cells a merged ligature cluster swallowed) claims them: it is rasterized once as a strip that many cells wide, and each cell samples its own slice, so selection, the cursor and per-cell colours work unchanged. Anything the grid cannot place (several glyphs in one cell, a positioned mark) keeps its nominal glyphs. A frame must not pay for this. A shaped word's atlas slots are cached by its text (checked against the stored text, not just its hash), so a frame costs one lookup per word and a compare for the rest of the word being walked. The atlas is keyed by (face, glyph, role, decoration, lead, span), packed into 64 bits so a lookup hashes one word; ASCII glyph ids are a table, and a face's HarfBuzz state is made when it is first asked about a glyph. Measured with the latency trace, whose F line now also carries the submit time (CPU = submit - present entry), in 10 interleaved rounds against main with an A/A pair, at 160x50 cells: with Adwaita Mono every scenario (idle, scrolling, typing, terminal output) is as fast or 1-3% faster, and the first frame and time to first paint are unchanged. With Maple Mono, ligatures cost the first frame about 0.8 ms (HarfBuzz setup and shaping the screen) and scrolling new text about 1-2%. With it the codepoint raster path is gone: grips look up their glyph and stay centered, since a grip is not text. ui_font_scale_for_height, an identity kept as a "size token", is removed (px is the size everywhere), ui_font_has_glyph becomes ui_font_glyph, and the space slot is simply the first, cleared cell of the atlas rather than a rasterized space. CellStyle.ul gets an explicit u3 tag so a decoration fits in the packed keys. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
* Center tagline bands, frame anchors evenly, fill to the window edge, and ↵Gabriel Schneider2 days
| | | | | | | | | | | | | | | | | | resize columns from their grip Every tag band (workspace, column, pane) is centred in its row, so text sits at one baseline offset. Anchors are inset from the column rule by that same margin, so they are square and the band frames them on the left, top and bottom; the pane mark moves to stay centred. When the window is not a whole number of cells, the bands, rules, spines and scroll thumbs at the right and bottom edges run on through the leftover pixels. A column grip dropped short of another column's place now moves the column's left edge, with a dashed rail preview, sharing setColumnPairWidth with the border drag. A release still on the grip changes nothing, and a pair too narrow for two MINW columns is left alone. PARDES_TEST_PAD adds leftover pixels to a test-mode window and capture.
* Repaint PDF highlights by row, send rasters by shared memory, and animate ↵Gabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | messages PDF highlights (hover preview, search, selection) are baked into page rasters, and any change re-rendered the whole page with MuPDF; the TTY then re-sent it as base64 (4.7 MB a page), the GUI as a new texture. Worse, a pointer motion over a PDF invalidated the page even when no preview was shown, so every motion paid that. Now: - A raster whose baked highlight set equals the wanted one is left alone. - A highlighted page keeps its clean rows (before highlights and tint); a change repaints only the rows of quads that differ, running MuPDF's highlight pass (pardes_pdf_paint_highlights) over those clean rows and tinting them: the operations a full render performs, so the pixels are identical. MuPDF band renders are NOT bit-identical to a whole page (edge rows, resampled images), so they are never used to patch; the comment claiming otherwise is corrected. - ImagePlace.patch hands shells the changed rows; the GUI uploads just those rows into the texture it holds. - The TTY probes kitty shared memory (t=s) with an id vaxis never reaches and sends rasters as a /dev/shm name when the terminal reads it; direct base64 otherwise (ssh). - Shells that take row patches (GUI, TTY with shm) repaint a selection while it is dragged instead of only on release. Latency elsewhere: - TTY: an animating frame no longer sleeps 16 ms blind; a tick thread posts into the input queue, so input inside the frame is handled at once. - TTY and GUI: queued pointer motions coalesce to the last. - GUI: a skipped swapchain image re-arms the frame (3 retries); animations still tick while nothing presents. - Editing: the line index is carried across an edit instead of rebuilt from a scan of the whole file per keystroke. Messages fall into their row (ease-in; the GUI slides the band out from under the tagline, a terminal fades it), stay until the next input as before, linger MessageLinger ms (default 800), and dissolve (ease-out). MessageAnimation toggles it; both are settings, in Config and startup files. The snapshot harness pins the old behaviour. The detached server now ticks animations. A restored terminal comes back live: the old screen and scrollback (dumped as clean VT by ghostty's formatter, replayed at the new size; older dumps fall back to their rendered text), a dim "restored history" marker, then a new shell in the directory it was in. Right-click on a line number in a file pane looks at that line (a sticky context header's number included). Measured with an external pty driver (TTY), an in-process fence trace (GUI, PARDES_TEST_LATENCY), and test/pdf_pointer_bench.zig (pixel identity against the baseline and a whole-page oracle); balanced A/A/B rounds, paired per-round statistics. Messages stack: each event gets its own row and its own fall, linger and dissolve; a line keeps its row until it leaves and a new one fills the first free row. Announcements and statuses are replaced in place, not stacked. MessageFall, MessageDissolve and DumpDir are settings Config reports. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
* Answer 9P on the connection's task, so a session can open its own treeGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The editor's loop was the only thing that could answer a 9P request, which made the editor's own syscalls through a mount of its own tree -- a Look at /mnt/9p/pardes/<me>/anything under a `9ns --mntgen` view, a Save into it -- requests only the blocked loop could serve. The name-based refusal that followed (ownMountSuffix) and the in-process routing of a mount of oneself (Client.sameSession) were patches over that, and both are gone, with the mailbox that shipped every request to the editor's thread. One rule replaces them, `pardes.turn`: the core is single-threaded, the editor's thread has the turn by default and gives it up in two kinds of gap -- while it waits for input and while a step of it is out in a host syscall -- and a cloud9 connection task takes it in those gaps to answer. `out` counts the steps that are out, from any thread: while one is, the core reads consistently but that step still holds pointers into it, so a request that would change a pane (a write, a truncation, an rmdir) is parked in the engine and retried when the turn is next given up with nothing out, and the editor's own wake waits for the count to reach zero. It is never a write of its own that a step waits on out there -- writes come from a shell performing a save between steps -- so a parked request is never the syscall's own, and making a pane or rendering a screen need not park: every yield sits before its step's mutation, so the layout and the surface are whole under it. A changing request that queued effects is answered once the editor has performed them (`echo Save > exec` returns with the file written, as acme's `put` does), and it settles the way a step does, because without that a /log reader waited for the user's next keystroke. Every host syscall on a user path has to give the turn up, not fs.zig's alone: the first end-to-end run hung in `inotify_add_watch` performing the new pane's watch effect. PDFs and images are read whole at open, so no draw goes out into the host. The core's allocator takes its fixed buffer through the lock-free interface, since a connection task allocates while the editor's thread is out in a syscall that allocates too. A Restore puts the replacement in first and releases every task waiting on the old core. cloud9 (pinned at eb1a104) parks an open, a truncating wstat, a clunk and a remove on `again`, not only reads and writes, and answers a parked job whose fid was clunked without asking the backend. Verified: test/selfmount.py runs the editor under `9ns --mntgen` and Looks at, reads and Saves its own tree through the mount; a unit test pins that a change parks while the editor is out mid-step and lands when it rests, while a read is answered in the window. 9P over the Unix socket against a tty session, same machine, Debug builds: a read of /index 278us -> 61us, a truncating body write 1184us -> 609us, exec Save 718us -> 583us; the gesture benchmark is unchanged (geometric mean 0.997 over 53 cells). Also from the reviews: a notice chip over an image or PDF pane was painted out by the picture drawn after the cells, so pictures give up the rows; in the GUI a tree-sitter context band painted over the chip, so body layers are emitted first; a message is one row of printable text, its 256-byte cut never leaves half a glyph, and one wider than its pane keeps its tail (the file name, the reason) rather than its head. Co-Authored-By: Claude Fable 5.1 <[email protected]>
* Notices become chips that float over the body, not rows taken from itGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | A notice is an overlay now, which is the one place it is NOT like the tree-sitter context: it takes no row from the body and moves no text. Each one is a chip as wide as its own message plus a blank cell either side, anchored to the pane right edge on the body top rows. The rest of each of those rows is ordinary body text that still reads and still answers a click -- Notices.left records where each chip starts, and the hit test refuses only the cells it covers rather than the whole row. The width is counted in GRID columns rather than scaled into the tagline face the chip is drawn in, because the canonical grid is what a terminal client draws and a chip narrower than its own text there would clip it; the narrower tagline face simply leaves a little more room inside the chip. The tag layer takes the geometry the grid pass already chose, so the two cannot disagree and the GUI skipping the cells a tag layer covers leaves no stub behind. Pane.body_offset is gone with the reservation it existed for, and bodyTop takes only a rect. The body layer keeps every row it had, the scrollbar runs the full body again, and the GUI smooth-scroll extents go back to the pane. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Notices become tagline bands at the top of the bodyGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A message, a leader chord and a prompt used to share one row of body text at the bottom of a pane, wearing the tagline font and nothing else about a tagline. Now each one is a TagLayer of its own, emitted through the same renderHeaderLayer the pane and column tags go through, so it gets the tagline height, the small-font metrics, the band offset and the border for free -- none of which a body-grid row can have by changing its font role. The text is right aligned. The prompt stays on the canonical grid because it owns a cursor, and a cursor has to sit on a real cell. The body starts BELOW the bands rather than under them, the way tree-sitter context rows already worked. Pane.body_offset is how many rows they took and Pardes.bodyTop(pane, rect) is the one place that answers "where does the body begin" -- replacing fifteen copies of `if (tag_bottom) r.y else r.y + BOX_H` spread across the paint, hit-test, scroll, PDF and image paths, which is what let the bands and the text under them come adrift. Every notice is painted on the grid as well, because the grid is what a terminal client draws and a band it cannot see is a message it never gets; the GUI skips grid cells a tag layer covers, so nothing is drawn twice. Three bugs the bands exposed, fixed here: - a prompt band flush with the right edge put its caret one column past the pane, which the detached wire refuses -- so every frame was dropped for as long as the prompt was open. The band now reserves that column. - a click on a band mapped to Sel row 0, which is the TAG row: clicking chrome expanded a word out of the tagline and ran it as a builtin. - a watched file reloading under the editor changed the core without going through update, so needs_frame was never set and the reload was never drawn. Pardes.invalidate() is the name for that, and the file and theme reloads call it. A session can now drive its own 9P namespace instead of being refused one: ownMountSuffix answers what a path names inside this editors own tree and resolve, readLimit and write serve it from memory rather than making the syscall that never returns. The match is anchored to whole components under the registrys 9p/pardes/<name>, because a bare /pardes/<name> anywhere in a string would claim ~/src/pardes/<name>/README -- and, before write learned the same trick, write the trees bytes over the real file. readFileLimit and writeFile refuse instead, having no core to answer from. A toggle setting SETS when given `on` or `off` and only flips when it is bare, so the report LocationsConfig prints can be fed back as configuration and mean what it says. Snapshots: 97/98, from 0/98. The goldens were several commits stale and 17 scripts had stopped running; `config <line>` is a new script command that appends to the per-script startup config, so a script that clicks body coordinates pins `Verbose off` instead of counting the rows an announcement moves. nested-optout is left failing on purpose: two levels of nesting prepend vaxis F3 codepoints to typed lines, which is a real bug and is written down in docs/divergences.md with a repro. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Refuse a session's own mount, and paint notices as a tagline bandGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Opening a path inside this editor's own 9P tree hung the session outright, and it is easy to do by accident: a file manager whose $EDITOR is pardes, or a Look at anything under /mnt/9p/pardes/<me>/. The realpath, the stat and the read all leave through the mount and come back as 9P requests only this editor's loop can answer, while that loop is blocked making them. The filesystem then stops answering anybody, which is what made it look frozen rather than slow. The answer has to come from the NAME, before any syscall, because the syscall is the thing that never returns: the listener notes the name it is posted under and `resolveOs` refuses a path containing `/pardes/<that name>/`, with `readLimit` refusing it too for anything that gets past resolution. Another session's mount stays perfectly usable, and `/n/self/...` is the way to reach your own tree -- the editor serves it from memory without leaving the process. Reproduced before and after: the 9P write that never returned now returns, the editor stays responsive, and it spends four CPU ticks doing it. The transient lines also now look like what they were modelled on. They carried the context band's bookkeeping -- one list, rows reserved the way sticky headers reserve them -- but still painted as ordinary body text, so a message read as a stray line at the bottom of the pane rather than as part of its chrome. They take the tagline font and the tagline's own colours now, verified on a running editor: the announcement lands with font_role=tagline. Two tests the features never had: a builtin announcing itself, reaching the notice list, being overridden by Msg's own text and silenced by Verbose; and the own-mount guard, including that a session with no listener refuses nothing. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Fixes from three adversarial reviews, and a destructive one among themGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The registry sweep could delete a live socket, anywhere on the filesystem. A reviewer reproduced it: a socket that is bound but has not reached listen(2) answers ECONNREFUSED exactly like a dead one -- that window is every server's startup -- and the sweep then followed the entry's symlink and unlinked whatever absolute path it named. It now follows a target only into the directory our own sockets live in and only to a `pardes-9p-*.sock` name, it re-probes immediately before deleting rather than trusting a probe that is by then several syscalls old, and a readlink that exactly filled its buffer is treated as the truncation it is. The test grew a case for an entry whose target is not ours: the entry goes, the file does not. Ctrl-V in raw tty mode was a black hole when the yank register was empty -- neither typed nor forwarded -- so vim's visual block, readline's quoted-insert and every other program's Ctrl-V simply vanished. With nothing to paste the chord belongs to the program again. The lone-ESC flush added earlier was dead code. vaxis already returns Escape for a one-byte 0x1b (`Parser.parseGround` asserts `input.len == 1`), so the carried byte it waited for can never exist; a reviewer showed a 3 ms gap and a 60 ms gap behaving identically. Removed rather than left to imply a guarantee it never provided. A shell whose editor is gone can start one again. Naming a live but unreachable session made `pardes <file>` exit 1, which let a stale environment variable lock someone out of their own editor; it falls through to an ordinary session, as it did before the variable existed. Also: the macOS ABI check for `pardes_topbar_pane_border_px` had been replaced by a duplicate of the line above it; `--startup` now fails on a leak the way every other measurement in that file does, and stops calling its maximum a p95 below twenty samples; the served README and the skill no longer tell you to write to `data` with `>`, which truncates the whole body before the write lands; `docs/v9fs.md` described the allocate-on-walk design that was rejected; and `test/fs.py` keys nesting off `PARDES_PID`, so its forwarding case stops passing only when the runner happens to be inside a live pardes. fs-test now reaches its one documented pre-existing failure instead of dying early. Suite 778/783 with the two known crashes. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Draw a frame only when there is one worth drawingGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A 9P round trip on a local Unix socket cost 9.7 ms against the SDL shell and 0.758 ms against the terminal one. The server was not slow and the wake was not broken: instrumenting the path showed every request waking the loop early (wakes=210, woke_early=212, timed_out=38 over 250 ticks) and being answered on that same pass. The cost was that `pump` answers 9P at one point in a loop that then renders and presents unconditionally, so a client's next request landed while the main thread was blocked on the display, and each round trip therefore cost a whole frame. The frame rate was governing something that has nothing to do with drawing. `Pardes.needs_frame` starts true, is set by every event except a tick with nothing animating and a filesystem request that only reads, and is cleared once a frame is presented. `pump` returns before render and present when it is false and nothing is animating. An idle editor answering reads now draws nothing at all. 9P read_fid, one RPC: gui 9.7 ms -> 0.056 ms (173x) tty 0.758 ms -> 0.062 ms (12x) Verified the shells still paint rather than going quiet: the rendered screen carries the opened file, a write through 9P redraws within the frame, and `fs-discovery-test` passes over the real wire. Suite unchanged at 778/783 with the two pre-existing crashes. Also from the adversarial review of the previous commits: `pardes --tty FILE` silently discarded the file, and `--tty MISSING` silently discarded the error pane. main.zig named the boot layout before the positional was resolved, and naming one short-circuits `Boot.of`. The choice now happens after the argument is known, and only when there is no file and no missing word. macos.zig names the same layout, so the app no longer boots a different one from the terminal and SDL shells. `pre_close_last_pane_tail` was transcribed from the NEW default rather than the old one, so the upgrade path it was added for did not exist: a workspace dumped before the tagline reorder came back with the old default welded on as a custom tail. It is now the string it claims to be. A pane two rows tall lost its message and, worse, its prompt and the cursor with it. The notice cap keeps the LAST notices now, because the prompt is last and a prompt you cannot see is one you type into blind. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Stack a pane's transient lines instead of letting the last one win the rowGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | A pane's message, its pending leader chord and a prompt waiting for input all wanted the same row above the tagline. The prompt won it, the leader drew over whatever was there on the right, and renderBodyLayer recomputed "is anything down there" inline to reserve a single row. Three claimants, one row, and two places deciding. Pane.Notices is that decision in one place: a short ordered list of the lines a pane is showing, rebuilt every frame by collectNotices from the state that owns each one. The body layer reserves exactly notices.len rows, the way it already reserves rows for sticky context headers, and the paint pass walks the list and gives each line a row of its own, stacked upward from the tagline. Nothing stores a second copy of the truth, so a line that goes away is simply not added next frame and the rest close the gap. One notice lands on exactly the row the message always had, and the prompt stays nearest the tagline so it keeps its cursor. Last also learned what to do when the jumplist is empty. It used to walk the jumps and, finding nothing, do nothing at all -- which is the ordinary case for a pane that opened beside this one and was never focused, such as the text pane the bare tty layout puts under the shell. It now falls back to neighbourPane: the next pane down the column, wrapping, and any other live pane failing that. Alternating with the neighbour is what Last is for. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Merge the macOS first-class-host workGabriel Schneider2 days
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| * Make the macOS shell a first-class hostGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pty children are exec'd with their own TERM/COLORTERM/TERM_PROGRAM instead of inheriting a .app launch's empty environment, and ttyTaken finally answers on darwin — libproc walks the tty's foreground process group — so Escape reaches the child and Exec stops believing every pane sits at its prompt. The occupancy suite runs on both platforms now. The workspace tag row moves into the native menu bar as a Builtins menu. -Dworkspace-tag (default off for -Dplatform=macos, on everywhere else) drives it, and Pardes.topBarHeight replaces the TOPBAR_H constant so the core stops reserving the row. The view pins every variable-font axis to the file's own default (Maple Mono came up Thin otherwise), shapes ligatures, carries per-shape pointer cursors, and draws the look-hover affordance as refracted glass. Tag rows fill edge to edge, with the anchor box painted back on top of that fill and its mode glyph centred on the same square. Theme accents re-saturated across the set. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* | Plan 9 idiom for the control filesystem, and the regressions a624a56 leftGabriel Schneider2 days
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 9P tree stops being a command language wearing a filesystem. /new created a pane as a side effect of a *read*; it is now Tcreate in /pane, with Tremove to close, which cloud9's engine has always supported and the editor never declared: tree.zig now says `features = .{ .create = true, .remove = true }`. Eleven pane ctl verbs become files that can be read as well as written -- dot, limit, dirty, mark, scroll, look, exec -- leaving ctl with `get`, the one verb no file would say better. Root /ctl splits into a read-only /status and the /look and /exec files whose write IS the click. stat carries real sizes where it used to answer 0, and qid versions track a pane's revision, so a client can poll for change without re-reading the body. Commit a624a56 moved raw-tty keys to an early-return branch that knew only Ctrl-B and bare Escape, and in the same edit deleted the paste branch below it. That cost Shift-Escape (the unconditional way out of tty mode) and both paste chords: Ctrl-V and Ctrl-Shift-V reached the child as keystrokes, so an agent CLI running in a pane took Ctrl-V for its image-paste binding and answered "No image found in clipboard". Both are restored, with tests. Nested detection was not subtly broken but deleted: 60367d8 removed nested.zig's process-ancestry walk and left "am I inside pardes" derived from PARDES_FORWARD_LOOK, which read "0" both for --nested and for "the listener did not come up". PARDES_PID now answers that question on its own, checked with kill(pid, 0); PARDES_9P and PARDES_PANE answer how to reach it; the flag is gone. The posted-9P registry also self-heals now -- a session that aborts cannot unlink its own socket, so posting sweeps entries whose target refuses a connection, symlinks only and on a definite ECONNREFUSED only. Elsewhere: tty scrolling is sticky-bottom, following new output only from the last row, with typing and entering raw mode snapping back to live; the boot layouts are a Boot enum instead of a chain of ifs, and the bare tty startup (Boot.tty, which main.zig names) opens an empty text pane under the shell while tests keep Boot.tty_shell; builtins announce themselves on the message row under a Verbose setting that is on by default; Config prints each setting the way you would type it back, so WindowOpacity 70 rather than "WindowOpacity: 70%"; LocationsConfig opens its window only when called bare; every tagline puts the word that closes the thing last, and a column now outlives its panes -- closing the last one leaves an empty pane, and only Delcol, newly on the column tagline, takes the column away. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Use cloud9's file-server engine instead of the private copyGabriel Schneider2 days
| | | | | | | | | | | src/9p.zig shrinks to an 88-line alias: the engine and the backend contract (Req, Reply/ReplyWith, Op, Status, Attr, E, error strings) now come from cloud9.fs. The editor's limits become cloud9.fs.Options values; the ESP32-P4 board backend drops its own copies of the contract types. No behaviour change; fs-bench still allocates nothing per request. cloud9 re-pinned to the commit that carries the engine. Co-Authored-By: Claude Fable 5.1 <[email protected]>
* Flatten the 9P control tree and move it out of fs.zigGabriel Schneider2 days
| | | | | | | | | | | | | | | The served tree loses the self/ level: /index /ctl /new /log /screen /listeners /pane/<n>/... /os, with /src only in -Dembed-sources=true builds (default off, on for esp32p4). ctl speaks the editor's own language with two lowercase verbs, look TEXT and exec TEXT, plus acme's addr verbs; the new/ factory directory becomes one clone file; cons is gone (exec Msg); name and sel are files; stats report real lengths, modes and mtimes; /log streams pane new/del/rename/save events. The tree code lives in src/ninep/ (tree, pane, ctl, addr, pty, events, screen, sources); fs.zig keeps host access, mounts, resolution and find/grep. Same engine and transports. README (fs-help.txt) and docs rewritten; tests updated and extended. Co-Authored-By: Claude Fable 5.1 <[email protected]>
* Add macOS backdrop blur and preserve PDF ink opacityGabriel Schneider2 days
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* Follow the tag gap in the Look hover preview testGabriel Schneider2 days
| | | | | | | | | | The tag's first character moved to TAG_TEXT_INSET when the grip's hit area was separated from the text by a gap; the assertion kept reading GUTTER, which is now the gap itself and carries the plain tag background. The test's own point — that a preview on the tag's first character is paintable at tag column zero, PREFIX_W being a body concern — is unchanged; only where column zero is moved. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Give macOS scrolling momentumGabriel Schneider2 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | A swipe that was still moving when the fingers lifted stopped dead. The dial next to it has thrown properly since pardes_rotate_end, and this is that same curve on the scroll accumulator: velocity sampled between events off the monotonic clock, weighted toward the newest sample because a flick is decided by how the hand was moving when it left, and a fling that ramps up from zero at the floor rather than switching on at it. A coast stops at the end of a document rather than spinning its remaining velocity against the edge, which is why spendScroll now reports whether the pane moved and why paneAt is public. Only a step that delivered a press can report an edge — the many steps between two rows cross nothing. Nothing suppresses AppKit's own momentum, and nothing needs to: its momentum events are ordinary pardes_scroll calls, every one of which cancels the coast before spending its travel, so on a real trackpad the system takes the gesture over about a frame after the lift and the tail it ends on is below the floor. This is the path for devices AppKit does not fling for — and the only one a script can reach, since NSEvent phases have no public constructor. momentum.snap asserts both halves, which is why it needs the long scrollback: a flick with no document left proves nothing. A slow swipe is byte-identical after the release; a hard one coasts twenty-four rows further on its own, and a finger back on the pad stops it there. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
* Clear selections when navigating Back and ForwardGabriel Schneider2 days
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* Keep unavailable numeric Look targets harmless when clearing selectionGabriel Schneider2 days
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* Clear previous selections before resolving Look destinationsGabriel Schneider2 days
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* Reuse bounded source analysis and speed up result context traversalGabriel Schneider2 days
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* Default location results to stacked addresses and source previewsGabriel Schneider2 days
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* Separate pane and column grip hit areas from tagline text with a small gapGabriel Schneider2026-09-15
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* Keep column grips blank and muted in every focus stateGabriel Schneider2026-09-15
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* Cycle pane input modes with Mode and retain terminal tag accessGabriel Schneider2026-09-15
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* Reorder columns using aligned and distinctly colored tag gripsGabriel Schneider2026-09-15
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* Make location highlighting an explicit output producer choiceGabriel Schneider2026-09-15
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* Separate tag text geometry from physical pane gripsGabriel Schneider2026-09-15
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* Use result metadata when walking output locations with n and NGabriel Schneider2026-09-15
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* Separate discontinuous pinned source context with thin bordersGabriel Schneider2026-09-15
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* Align search and LSP context locations flush leftGabriel Schneider2026-09-15
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* Match filename tint lightness in every canonical theme and focus stateGabriel Schneider2026-09-15
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* Add optional compact tagline styling for source contextGabriel Schneider2026-09-15
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* Lead terminal tags with a tinted Tty commandGabriel Schneider2026-09-15
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* Expose LocationsConfig in location result pane tagsGabriel Schneider2026-09-15
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* Follow embedded PDF links through LookGabriel Schneider2026-09-15
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* Remember tag cursors and reserve uppercase pane navigationGabriel Schneider2026-09-15
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* Tint pane tag filenames with an optional theme colorGabriel Schneider2026-09-15
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* Align location results and configure source contextGabriel Schneider2026-09-15
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* Add optional tree-sitter declaration contextGabriel Schneider2026-09-15
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* Mirror raw terminal mouse selections for text transferGabriel Schneider2026-09-15
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* Align file clicks and insertion cursorsGabriel Schneider2026-09-15
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