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small gleam coding and (not yet) persistent agent daemon with a detachable cli forked from okami.mom/albedo
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126<script lang="ts"> import { FileDiff, processFile, type SelectedLineRange } from '@pierre/diffs'; import { untrack } from 'svelte'; import { diffs } from '../anchors'; import { prefs } from '../prefs.svelte';
// One file's diff, highlighted by @pierre/diffs (Shiki underneath). Notes // about its lines live on the canvas, not in the file: the diff only says // which diff it is (`key`, for notes to find their lines) and asks // `oncomment` to start one when the margin's button picks lines. let { key, path, change, diff, oncomment, }: { key: string; path: string; change: number; diff: string; oncomment?: (range: SelectedLineRange) => void; } = $props();
let container = $state<HTMLElement>(); let view = $state.raw<FileDiff>(); // Pierre highlights a diff on the main thread as it mounts, so a review of // a hundred files would draw them all in one task. A diff mounts once it // comes near the view, holding its height in lines until then. let near = $state(false); const rows = $derived(diff.split('\n').length); const commenting = $derived(!!oncomment);
$effect(() => { if (!container || near) return; const observer = new IntersectionObserver(([seen]) => (near ||= seen.isIntersecting), { root: scroller(container), rootMargin: '1500px 0px' }); observer.observe(container); return () => observer.disconnect(); });
$effect(() => { diffs.set(key, { path, change, diff }); return () => diffs.delete(key); });
// A trace's diff may lack git's file headers; give it some so the // language is known from the name. const parsed = $derived(processFile(/^(---|diff )/m.test(diff) ? diff : `--- a/${path}\n+++ b/${path}\n${diff}`, { cacheKey: `${path}:${diff.length}:${hash(diff)}` }));
$effect(() => { if (!container || !near) return; const wrap = prefs.wrapCode; const created = new FileDiff({ theme: { dark: 'pierre-dark', light: 'pierre-light' }, themeType: untrack(() => prefs.resolved), diffStyle: 'unified', overflow: wrap ? 'wrap' : 'scroll', disableFileHeader: true, hunkSeparators: 'line-info', lineDiffType: 'word', enableGutterUtility: commenting, // A finished pick must not stay selected: the margin button keeps to a // standing selection, so the next comment would land on the old lines. onGutterUtilityClick: (range) => { oncomment?.(range); setTimeout(() => created.setSelectedLines(null)); }, // The canvas's own ground and diff colours, under Pierre's token colours. unsafeCSS: `:host { --diffs-light-bg: var(--well) !important; --diffs-dark-bg: var(--well) !important; --diffs-addition-color-override: var(--added); --diffs-deletion-color-override: var(--danger); --diffs-selection-color-override: var(--accent); --diffs-bg-addition-override: color-mix(in oklab, var(--added) 8%, var(--well)); --diffs-bg-addition-number-override: color-mix(in oklab, var(--added) 12%, var(--well)); --diffs-bg-addition-emphasis-override: color-mix(in oklab, var(--added) 20%, var(--well)); --diffs-bg-deletion-override: color-mix(in oklab, var(--danger) 8%, var(--well)); --diffs-bg-deletion-number-override: color-mix(in oklab, var(--danger) 12%, var(--well)); --diffs-bg-deletion-emphasis-override: color-mix(in oklab, var(--danger) 20%, var(--well)); --diffs-font-family: var(--mono); --diffs-font-size: calc(12px * var(--canvas-scale)); --diffs-line-height: 19px; }`, }); view = created; return () => { created.cleanUp(); view = undefined; }; });
$effect(() => { view?.setThemeType(prefs.resolved); });
$effect(() => { if (!view || !container || !parsed) return; view.render({ fileDiff: parsed, containerWrapper: container }); });
/** The nearest ancestor that scrolls, which the diff comes into view in. */ function scroller(element: HTMLElement): HTMLElement | null { for (let at = element.parentElement; at; at = at.parentElement) if (/auto|scroll/.test(getComputedStyle(at).overflowY)) return at; return null; }
function hash(text: string) { let h = 0; for (let i = 0; i < text.length; i++) h = (h * 31 + text.charCodeAt(i)) | 0; return h >>> 0; }</script>
<div class="diff" data-diff={key} data-waiting={near ? null : ''} style:height={near ? null : `${rows * 19}px`} bind:this={container}></div>
<style> .diff { overflow: hidden; border-radius: 10px; } .diff[data-waiting] { background: var(--well); }</style>