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94059b0aaf
* feat(maps): add regional map downloads via go-pmtiles extract * address Copilot review feedback on PR #780 - auto-refresh preflight on selection/maxzoom change with 400ms debounce and requestId stale-safety so the confirm button no longer requires a two-step "Estimate Size" -> "Start Download" dance - safeUpdateProgress helper replaces fire-and-forget updateProgress().catch() pattern so cancelled-job errors (code -1) can't surface as unhandled rejections - gate world basemap source on worldBasemapReady - when ensureWorldBasemap() fails we already delete world.pmtiles, so emitting the source was producing 404s on every tile request - verify go-pmtiles binary SHA256 at image build time; upstream doesn't ship a checksums file so per-arch hashes are pinned as build args with a regenerate note when bumping PMTILES_VERSION
33 lines
1.3 KiB
TypeScript
33 lines
1.3 KiB
TypeScript
export const PMTILES_BINARY_PATH = '/usr/local/bin/pmtiles'
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// Clamp these so a user can't ask for nonsense that never extracts
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export const EXTRACT_MIN_ZOOM = 0
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export const EXTRACT_MAX_ZOOM = 15
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export const EXTRACT_DEFAULT_MAX_ZOOM = 15
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// Low-zoom global fallback extracted once during base-asset setup (~15 MB). Layered
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// underneath regional extracts so the map isn't grey outside a region's polygon.
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export const WORLD_BASEMAP_FILENAME = 'world.pmtiles'
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export const WORLD_BASEMAP_MAX_ZOOM = 5
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export const WORLD_BASEMAP_SOURCE_NAME = 'world'
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export interface PmtilesExtractArgOptions {
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sourceUrl: string
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outputFilepath: string
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regionFilepath?: string
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maxzoom?: number
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dryRun?: boolean
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downloadThreads?: number
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overfetch?: number
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}
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export function buildPmtilesExtractArgs(opts: PmtilesExtractArgOptions): string[] {
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const args = ['extract', opts.sourceUrl, opts.outputFilepath]
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if (opts.regionFilepath) args.push(`--region=${opts.regionFilepath}`)
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if (typeof opts.maxzoom === 'number') args.push(`--maxzoom=${opts.maxzoom}`)
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if (opts.dryRun) args.push('--dry-run')
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if (typeof opts.downloadThreads === 'number') args.push(`--download-threads=${opts.downloadThreads}`)
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if (typeof opts.overfetch === 'number') args.push(`--overfetch=${opts.overfetch}`)
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return args
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}
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