Read WebP/JPEG comps through a sibling PNG cache instead of forcing PNG

comp-spec, comp-diff, build-phase, font-match, and generate-image now decode any comp raster via loadRaster(), converting non-PNG input to <file>.png next to the source. Sessions used to hit 'not a PNG' and rewrite the .webp in place with PNG bytes, which broke transcript replay (a later step rewrites the comp beyond the cut) and left a mislabeled file.

AI-assisted (Claude Code).
This commit is contained in:
Paul Bakaus
2026-08-28 06:13:59 +05:00
committed by Abdul Wahab
parent 95294e464a
commit 48350ffb14
7 changed files with 63 additions and 15 deletions
+2 -2
View File
@@ -207,7 +207,7 @@ const plateId = arg('plate');
let plateCtx = null;
if (plateId) {
const { loadSpec, platePrompt, plateReference, SPEC_PATH } = await import('./comp-spec.mjs');
const { decodePng, encodePng } = await import('./lib/png.mjs');
const { decodePng, encodePng, loadRaster } = await import('./lib/png.mjs');
const { crop, resize } = await import('./lib/raster.mjs');
const specPath = arg('spec', SPEC_PATH);
const spec = loadSpec(specPath);
@@ -216,7 +216,7 @@ if (plateId) {
if (!region) { console.error(`generate-image: no region ${plateId} in ${specPath}; ids: ${spec.regions.map((r) => r.id).join(', ')}`); process.exit(1); }
if (region.medium !== 'raster') { console.error(`generate-image: region ${plateId} is ${region.medium}, not a plate; set its kind to plate|image|texture in the regions file`); process.exit(1); }
let comp;
try { comp = decodePng(fs.readFileSync(spec.comp)); } catch (e) { console.error(`generate-image: cannot read comp ${spec.comp}: ${e.message}`); process.exit(1); }
try { comp = loadRaster(spec.comp).image; } catch (e) { console.error(`generate-image: cannot read comp ${spec.comp}: ${e.message}`); process.exit(1); }
const ref = plateReference(comp, spec, region);
const refPath = path.join(path.dirname(specPath), 'crops', `${region.id}.png`);
fs.mkdirSync(path.dirname(refPath), { recursive: true });