Add support for quiet mode

README.md

@@ -74,6 +74,7 @@ Actions can be repeated and applied in any order:
 ```none
 -h, --help                              Show this help and exit
 -v, --version                           Show version and exit
+-q, --quiet                             Suppress non-error output
 -w, --overwrite                         Overwrite output file if it exists
 -c, --cpu                               Use CPU for SOG spherical harmonic compression
 -i, --iterations       <n>              Iterations for SOG SH compression (more=better). Default: 10

eslint.config.mjs

@@ -27,6 +27,8 @@ export default [
             '@typescript-eslint/ban-ts-comment': 'off',
             '@typescript-eslint/no-explicit-any': 'off',
             '@typescript-eslint/no-unused-vars': 'off',
+            'jsdoc/require-param-type': 'off',
+            'jsdoc/require-returns-type': 'off',
             'lines-between-class-members': 'off',
             'no-await-in-loop': 'off',
             'require-atomic-updates': 'off'

src/gpu/gpu-device.ts

@@ -27,6 +27,8 @@ import {
 } from 'playcanvas';
 import { create, globals } from 'webgpu';
 
+import { logger } from '../logger';
+
 const initializeGlobals = () => {
     Object.assign(globalThis, globals);
 
@@ -132,7 +134,7 @@ const createDevice = async () => {
 
     // print gpu info
     const info = (graphicsDevice as any).gpuAdapter.info;
-    console.log(`Created gpu device="${info.device || '-'}" arch="${info.architecture || '-'}" descr="${info.description || '-'}"`);
+    logger.debug(`Created gpu device="${info.device || '-'}" arch="${info.architecture || '-'}" descr="${info.description || '-'}"`);
 
     // create the application
     const app = new Application(canvas, { graphicsDevice });

src/index.ts

@@ -8,6 +8,7 @@ import { Vec3 } from 'playcanvas';
 
 import { version } from '../package.json';
 import { Column, DataTable, TypedArray } from './data-table';
+import { logger } from './logger';
 import { ProcessAction, processDataTable } from './process';
 import { isCompressedPly, decompressPly } from './readers/decompress-ply';
 import { readKsplat } from './readers/read-ksplat';
@@ -87,7 +88,7 @@ const readFile = async (filename: string, options: Options, params: Param[]): Pr
     const inputFormat = getInputFormat(filename);
     let result: DataTable[];
 
-    console.log(`reading '${filename}'...`);
+    logger.info(`reading '${filename}'...`);
 
     if (inputFormat === 'mjs') {
         result = [await readMjs(filename, params)];
@@ -126,7 +127,7 @@ const writeFile = async (filename: string, dataTable: DataTable, options: Option
     // get the output format, throws on failure
     const outputFormat = getOutputFormat(filename);
 
-    console.log(`writing '${filename}'...`);
+    logger.info(`writing '${filename}'...`);
 
     // write to a temporary file and rename on success
     const tmpFilename = `.${basename(filename)}.${process.pid}.${Date.now()}.${randomBytes(6).toString('hex')}.tmp`;
@@ -259,6 +260,7 @@ const parseArguments = () => {
             overwrite: { type: 'boolean', short: 'w', default: false },
             help: { type: 'boolean', short: 'h', default: false },
             version: { type: 'boolean', short: 'v', default: false },
+            quiet: { type: 'boolean', short: 'q', default: false },
             cpu: { type: 'boolean', short: 'c', default: false },
             iterations: { type: 'string', short: 'i', default: '10' },
             'lod-select': { type: 'string', short: 'O', default: '' },
@@ -323,6 +325,7 @@ const parseArguments = () => {
         overwrite: v.overwrite,
         help: v.help,
         version: v.version,
+        quiet: v.quiet,
         cpu: v.cpu,
         iterations: parseInteger(v.iterations),
         lodSelect: v['lod-select'].split(',').filter(v => !!v).map(parseInteger),
@@ -486,6 +489,7 @@ ACTIONS (can be repeated, in any order)
 GLOBAL OPTIONS
     -h, --help                              Show this help and exit
     -v, --version                           Show version and exit
+    -q, --quiet                             Suppress non-error output
     -w, --overwrite                         Overwrite output file if it exists
     -c, --cpu                               Use CPU for SOG spherical harmonic compression
     -i, --iterations       <n>              Iterations for SOG SH compression (more=better). Default: 10
@@ -512,21 +516,24 @@ EXAMPLES
 `;
 
 const main = async () => {
-    console.log(`splat-transform v${version}`);
-
     const startTime = hrtime();
 
     // read args
     const { files, options } = parseArguments();
 
+    // configure logger
+    logger.setQuiet(options.quiet);
+
+    logger.info(`splat-transform v${version}`);
+
     // show version and exit
     if (options.version) {
         exit(0);
     }
 
     // invalid args or show help
     if (files.length < 2 || options.help) {
-        console.error(usage);
+        logger.error(usage);
         exit(1);
     }
 
@@ -541,7 +548,7 @@ const main = async () => {
     } else {
         // check overwrite before doing any work
         if (await fileExists(outputFilename)) {
-            console.error(`File '${outputFilename}' already exists. Use -w option to overwrite.`);
+            logger.error(`File '${outputFilename}' already exists. Use -w option to overwrite.`);
             exit(1);
         }
     }
@@ -580,19 +587,19 @@ const main = async () => {
             throw new Error('No splats to write');
         }
 
-        console.log(`Loaded ${dataTable.numRows} gaussians`);
+        logger.info(`Loaded ${dataTable.numRows} gaussians`);
 
         // write file
         await writeFile(outputFilename, dataTable, options);
     } catch (err) {
         // handle errors
-        console.error(err);
+        logger.error(err);
         exit(1);
     }
 
     const endTime = hrtime(startTime);
 
-    console.log(`done in ${endTime[0] + endTime[1] / 1e9}s`);
+    logger.info(`done in ${endTime[0] + endTime[1] / 1e9}s`);
 
     // something in webgpu seems to keep the process alive after returning
     // from main so force exit

src/logger.ts

@@ -0,0 +1,77 @@
+type LogLevel = 'silent' | 'normal';
+
+/**
+ * Simple logger utility. Currently supports quiet mode. Designed to be extended for multiple log
+ * levels in the future.
+ */
+class Logger {
+    private level: LogLevel = 'normal';
+
+    setLevel(level: LogLevel) {
+        this.level = level;
+    }
+
+    setQuiet(quiet: boolean) {
+        this.level = quiet ? 'silent' : 'normal';
+    }
+
+    /**
+     * Log informational messages (file operations, progress, etc.). Suppressed in quiet mode.
+     * @param {...any} args - The arguments to log.
+     */
+    info(...args: any[]) {
+        if (this.level !== 'silent') {
+            console.log(...args);
+        }
+    }
+
+    /**
+     * Log warning messages. Suppressed in quiet mode.
+     * @param {...any} args - The arguments to log.
+     */
+    warn(...args: any[]) {
+        if (this.level !== 'silent') {
+            console.warn(...args);
+        }
+    }
+
+    /**
+     * Log error messages. Always shown, even in quiet mode.
+     * @param {...any} args - The arguments to log.
+     */
+    error(...args: any[]) {
+        console.error(...args);
+    }
+
+    /**
+     * Log debug/verbose messages. Currently treated the same as info, but can be filtered
+     * separately in the future.
+     * @param {...any} args - The arguments to log.
+     */
+    debug(...args: any[]) {
+        if (this.level !== 'silent') {
+            console.log(...args);
+        }
+    }
+
+    /**
+     * Write progress indicators directly to stdout (without newline). Suppressed in quiet mode.
+     * @param text - The text to write.
+     */
+    progress(text: string) {
+        if (this.level !== 'silent') {
+            process.stdout.write(text);
+        }
+    }
+
+    /**
+     * Check if logger is in quiet/silent mode.
+     * @returns True if the logger is in quiet/silent mode, false otherwise.
+     */
+    isQuiet(): boolean {
+        return this.level === 'silent';
+    }
+}
+
+// Export singleton instance
+export const logger = new Logger();

src/ordering.ts

@@ -1,4 +1,5 @@
 import { DataTable } from './data-table.js';
+import { logger } from './logger';
 
 // sort the compressed indices into morton order
 const generateOrdering = (dataTable: DataTable, indices: Uint32Array) => {
@@ -51,7 +52,7 @@ const generateOrdering = (dataTable: DataTable, indices: Uint32Array) => {
         const zlen = Mz - mz;
 
         if (!isFinite(xlen) || !isFinite(ylen) || !isFinite(zlen)) {
-            console.log('invalid extents', xlen, ylen, zlen);
+            logger.debug('invalid extents', xlen, ylen, zlen);
             return;
         }
 
@@ -96,7 +97,7 @@ const generateOrdering = (dataTable: DataTable, indices: Uint32Array) => {
             }
 
             if (end - start > 256) {
-                // console.log('sorting', end - start);
+                // logger.debug('sorting', end - start);
                 generate(indices.subarray(start, end));
             }
 

src/types.ts

@@ -2,6 +2,7 @@ type Options = {
     overwrite: boolean;
     help: boolean;
     version: boolean;
+    quiet: boolean;
     cpu: boolean;
     iterations: number;
 

src/utils/k-means.ts

@@ -1,6 +1,5 @@
-import { stdout } from 'node:process';
-
 import { Column, DataTable } from '../data-table';
+import { logger } from '../logger';
 import { KdTree } from './kd-tree';
 import { GpuClustering } from '../gpu/gpu-clustering';
 import { GpuDevice } from '../gpu/gpu-device';
@@ -159,7 +158,7 @@ const kmeans = async (points: DataTable, k: number, iterations: number, device?:
     let converged = false;
     let steps = 0;
 
-    console.log(`Running k-means clustering: dims=${points.numColumns} points=${points.numRows} clusters=${k} iterations=${iterations}...`);
+    logger.debug(`Running k-means clustering: dims=${points.numColumns} points=${points.numRows} clusters=${k} iterations=${iterations}...`);
 
     while (!converged) {
         if (gpuClustering) {
@@ -188,14 +187,14 @@ const kmeans = async (points: DataTable, k: number, iterations: number, device?:
             converged = true;
         }
 
-        stdout.write('#');
+        logger.progress('#');
     }
 
     if (gpuClustering) {
         gpuClustering.destroy();
     }
 
-    console.log(' done 🎉');
+    logger.debug(' done 🎉');
 
     return { centroids, labels };
 };

src/writers/write-lod.ts

@@ -4,6 +4,7 @@ import { dirname, resolve } from 'node:path';
 import { BoundingBox, Mat4, Quat, Vec3 } from 'playcanvas';
 
 import { TypedArray, DataTable } from '../data-table';
+import { logger } from '../logger';
 import { generateOrdering } from '../ordering';
 import { writeSog } from './write-sog.js';
 import { Options } from '../types';
@@ -87,7 +88,7 @@ const calcBound = (dataTable: DataTable, indices: number[]): Aabb => {
         const M = b.getMax();
 
         if (!isFinite(m.x) || !isFinite(m.y) || !isFinite(m.z) || !isFinite(M.x) || !isFinite(M.y) || !isFinite(M.z)) {
-            console.warn('Skipping invalid bounding box:', { m, M, index });
+            logger.warn('Skipping invalid bounding box:', { m, M, index });
             continue;
         }
 
@@ -264,7 +265,7 @@ const writeLod = async (fileHandle: FileHandle, dataTable: DataTable, outputFile
             // write file unit to sog
             const outputFile = await open(pathname, 'w');
 
-            console.log(`writing ${pathname}...`);
+            logger.info(`writing ${pathname}...`);
 
             await writeSog(outputFile, unitDataTable, pathname, options, indices);
 

src/writers/write-sog.ts

@@ -3,6 +3,7 @@ import { dirname, resolve } from 'node:path';
 
 import { Column, DataTable } from '../data-table';
 import { createDevice, GpuDevice } from '../gpu/gpu-device';
+import { logger } from '../logger';
 import { generateOrdering } from '../ordering';
 import { FileWriter } from '../serialize/writer';
 import { ZipWriter } from '../serialize/zip-writer';
@@ -125,7 +126,7 @@ const writeSog = async (fileHandle: FileHandle, dataTable: DataTable, outputFile
 
     const write = async (filename: string, data: Uint8Array, w = width, h = height) => {
         const pathname = resolve(dirname(outputFilename), filename);
-        console.log(`writing '${pathname}'...`);
+        logger.info(`writing '${pathname}'...`);
 
         // construct the encoder on first use
         if (!webPCodec) {