4 files changed, 58 insertions, 3 deletions
diff --git a/src/util/cli.js b/src/util/cli.js
index 4b2d349..0bbf3af 100644
--- a/src/util/cli.js
+++ b/src/util/cli.js
@@ -17,6 +17,7 @@ const C = n => (ENABLE_COLOR
 export const color = {
     bright: C('1'),
     dim: C('2'),
+    normal: C('22'),
     black: C('30'),
     red: C('31'),
     green: C('32'),
diff --git a/src/util/find.js b/src/util/find.js
index dd39bad..7cedb3d 100644
--- a/src/util/find.js
+++ b/src/util/find.js
@@ -124,3 +124,32 @@ const find = {
 };
 
 export default find;
+
+// Handy utility function for binding the find.thing() functions to a complete
+// wikiData object, optionally taking default options to provide to the find
+// function. Note that this caches the arrays read from wikiData right when it's
+// called, so if their values change, you'll have to continue with a fresh call
+// to bindFind.
+export function bindFind(wikiData, opts1) {
+    return Object.fromEntries(Object.entries({
+        album: 'albumData',
+        artist: 'artistData',
+        artTag: 'artTagData',
+        flash: 'flashData',
+        group: 'groupData',
+        listing: 'listingSpec',
+        newsEntry: 'newsData',
+        staticPage: 'staticPageData',
+        track: 'trackData',
+    }).map(([ key, value ]) => {
+        const findFn = find[key];
+        const thingData = wikiData[value];
+        return [key, (opts1
+            ? (ref, opts2) => (opts2
+                ? findFn(ref, thingData, {...opts1, ...opts2})
+                : findFn(ref, thingData, opts1))
+            : (ref, opts2) => (opts2
+                ? findFn(ref, thingData, opts2)
+                : findFn(ref, thingData)))];
+    }));
+}
diff --git a/src/util/io.js b/src/util/io.js
new file mode 100644
index 0000000..1d74399
--- /dev/null
+++ b/src/util/io.js
@@ -0,0 +1,14 @@
+// Utility functions for interacting with files and other external data
+// interfacey constructs.
+
+import { readdir } from 'fs/promises';
+import * as path from 'path';
+
+export async function findFiles(dataPath, {
+    filter = f => true,
+    joinParentDirectory = true,
+} = {}) {
+    return (await readdir(dataPath))
+        .filter(file => filter(file))
+        .map(file => joinParentDirectory ? path.join(dataPath, file) : file);
+}
diff --git a/src/util/sugar.js b/src/util/sugar.js
index 7a13227..f425989 100644
--- a/src/util/sugar.js
+++ b/src/util/sugar.js
@@ -215,7 +215,7 @@ export function mapAggregate(array, fn, aggregateOpts) {
 }
 
 export function mapAggregateAsync(array, fn, {
-    promiseAll = Promise.all,
+    promiseAll = Promise.all.bind(Promise),
     ...aggregateOpts
 } = {}) {
     return _mapAggregate('async', promiseAll, array, fn, aggregateOpts);
@@ -255,7 +255,7 @@ export function filterAggregate(array, fn, aggregateOpts) {
 }
 
 export async function filterAggregateAsync(array, fn, {
-    promiseAll = Promise.all,
+    promiseAll = Promise.all.bind(Promise),
     ...aggregateOpts
 } = {}) {
     return _filterAggregate('async', promiseAll, array, fn, aggregateOpts);
@@ -370,7 +370,7 @@ export function showAggregate(topError, {
             const stackLine = stackLines?.find(line =>
                 line.trim().startsWith('at')
                 && !line.includes('sugar')
-                && !line.includes('node:internal')
+                && !line.includes('node:')
                 && !line.includes('<anonymous>'));
             const tracePart = (stackLine
                 ? '- ' + stackLine.trim().replace(/file:\/\/(.*\.js)/, (match, pathname) => pathToFile(pathname))
@@ -399,3 +399,14 @@ export function showAggregate(topError, {
 
     console.error(recursive(topError, {level: 0}));
 }
+
+export function decorateErrorWithIndex(fn) {
+    return (x, index, array) => {
+        try {
+            return fn(x, index, array);
+        } catch (error) {
+            error.message = `(${color.yellow(`#${index + 1}`)}) ${error.message}`;
+            throw error;
+        }
+    }
+}