refactor(log): prefer util.format vs string interpolation

src/cli.ts

@@ -119,6 +119,7 @@ export function parseAdaptiveIconBackgroundOptions(resourcesDirectory: string, a
 
 export function parseSimpleResourceOptions(platform: Platform, type: ResourceType.ICON | ResourceType.SPLASH, resourcesDirectory: string, args: readonly string[]): SimpleResourceOptions {
   const source = parseSourceFromArgs(type, args);
+
   return { sources: source ? [source] : getDefaultSources(platform, type, resourcesDirectory) };
 }
 

src/cordova/config.ts

@@ -2,6 +2,7 @@ import { ensureDir, readFile, writeFile } from '@ionic/utils-fs';
 import Debug from 'debug';
 import et from 'elementtree';
 import pathlib from 'path';
+import util from 'util';
 
 import { BadInputError } from '../error';
 import { GeneratedResource, Platform } from '../platform';
@@ -78,7 +79,7 @@ export function runConfig(configPath: string, doc: et.ElementTree, resources: re
   const orientation = orientationPreference || 'default';
 
   if (orientation !== 'default' && errstream) {
-    errstream.write(`WARN: Orientation preference set to '${orientation}'. Only configuring ${orientation} resources.\n`);
+    errstream.write(util.format(`WARN: Orientation preference set to '%s'. Only configuring %s resources.`, orientation, orientation) + '\n');
   }
 
   const platforms = groupImages(resources);

src/image.ts

@@ -53,8 +53,7 @@ export function debugSourceImage(src: string, error: NodeJS.ErrnoException, errs
     debug('Source file missing: %s', src);
   } else {
     if (errstream) {
-      const message = util.format('WARN: Error with source file %s: %s', src, error);
-      errstream.write(`${message}\n`);
+      errstream.write(util.format('WARN: Error with source file %s: %s', src, error) + '\n');
     } else {
       debug('Error with source file %s: %O', src, error);
     }
@@ -78,7 +77,7 @@ export async function generateImage(image: ImageSchema, src: Sharp, metadata: Me
 
   if (errstream) {
     if (metadata.format !== image.format) {
-      errstream.write(`WARN: Must perform conversion from ${metadata.format} to png.\n`);
+      errstream.write(util.format(`WARN: Must perform conversion from %s to png.`, metadata.format) + '\n');
     }
   }
 

src/index.ts

@@ -2,12 +2,13 @@ import { pathWritable } from '@ionic/utils-fs';
 import Debug from 'debug';
 import et from 'elementtree';
 import path from 'path';
+import util from 'util';
 
 import { getDirectory, parseOptions, resolveOptions } from './cli';
 import { getConfigPath, read as readConfig, run as runConfig, write as writeConfig } from './cordova/config';
 import { BaseError } from './error';
 import { NativeProjectConfig, copyToNativeProject } from './native';
-import { GeneratedResource, PLATFORMS, Platform, RunPlatformOptions, run as runPlatform } from './platform';
+import { GeneratedResource, PLATFORMS, Platform, RunPlatformOptions, prettyPlatform, run as runPlatform } from './platform';
 import { Density, Orientation, ResolvedSource, SourceType } from './resources';
 import { tryFn } from './utils/fn';
 
@@ -74,7 +75,7 @@ async function CordovaRes(options: CordovaRes.Options = {}): Promise<Result> {
     if (platformOptions) {
       const platformResult = await runPlatform(platform, resourcesDirectory, platformOptions, errstream);
 
-      logstream.write(`Generated ${platformResult.resources.length} resources for ${platform}\n`);
+      logstream.write(util.format(`Generated %s resources for %s`, platformResult.resources.length, prettyPlatform(platform)) + '\n');
 
       resources.push(...platformResult.resources);
       sources.push(...platformResult.sources);

src/native.ts

@@ -1,8 +1,9 @@
 import { copy } from '@ionic/utils-fs';
 import Debug from 'debug';
 import path from 'path';
+import util from 'util';
 
-import { Platform } from './platform';
+import { Platform, prettyPlatform } from './platform';
 
 export interface NativeProjectConfig {
   directory: string;
@@ -184,15 +185,15 @@ export async function copyToNativeProject(platform: Platform, nativeProject: Nat
     const iosProjectDirectory = nativeProject.directory || 'ios';
     await copyImages(SOURCE_IOS_ICON, path.join(iosProjectDirectory, TARGET_IOS_ICON), IOS_ICONS);
     await copyImages(SOURCE_IOS_SPLASH, path.join(iosProjectDirectory, TARGET_IOS_SPLASH), IOS_SPLASHES);
-    logstream.write(`Copied ${IOS_ICONS.length + IOS_SPLASHES.length} resource items to ${platform}\n`);
+    logstream.write(util.format(`Copied %s resource items to %s`, IOS_ICONS.length + IOS_SPLASHES.length, prettyPlatform(platform)) + '\n');
   } else if (platform === Platform.ANDROID) {
     const androidProjectDirectory = nativeProject.directory || 'android';
     await copyImages(SOURCE_ANDROID_ICON, path.join(androidProjectDirectory, TARGET_ANDROID_ICON), ANDROID_ICONS);
     await copyImages(SOURCE_ANDROID_SPLASH, path.join(androidProjectDirectory, TARGET_ANDROID_SPLASH), ANDROID_SPLASHES);
-    logstream.write(`Copied ${ANDROID_ICONS.length + ANDROID_SPLASHES.length} resource items to ${platform}\n`);
+    logstream.write(util.format(`Copied %s resource items to %s`, ANDROID_ICONS.length + ANDROID_SPLASHES.length, prettyPlatform(platform)) + '\n');
   } else {
     if (errstream) {
-      errstream.write(`WARN: Copying to native projects is not supported for ${platform}\n`);
+      errstream.write(util.format('WARN: Copying to native projects is not supported for %s', prettyPlatform(platform)) + '\n');
     }
   }
 }

src/platform.ts

@@ -352,3 +352,14 @@ export function filterSupportedPlatforms(platforms: readonly string[]): Platform
 export function isSupportedPlatform(platform: any): platform is Platform {
   return PLATFORMS.includes(platform);
 }
+
+export function prettyPlatform(platform: Platform): string {
+  switch (platform) {
+    case Platform.IOS:
+      return 'iOS';
+    case Platform.ANDROID:
+      return 'Android';
+    case Platform.WINDOWS:
+      return 'Windows';
+  }
+}