Add size and diskusage

README.md

@@ -38,6 +38,8 @@ Methods:
 | isDir     | X    | X    | X   | custom native       |
 | isFile    | X    | X    | X   | custom native       |
 | isSymlink | X    | X    | X   | custom native       |
+| size      | X    | X    | X   | custom native       |
+| diskusage | X    | X    | X   | custom native       |
 
 ### Io
 

deno.json

@@ -11,8 +11,8 @@
     "@cross/dir": "jsr:@cross/dir@^1.1.0",
     "@cross/runtime": "jsr:@cross/runtime@^1.0.0",
     "@cross/test": "jsr:@cross/test@^0.0.9",
-    "@std/assert": "jsr:@std/assert@^0.220.1",
-    "@std/path": "jsr:@std/path@^0.220.1"
+    "@std/assert": "jsr:@std/assert@^0.221.0",
+    "@std/path": "jsr:@std/path@^0.221.0"
   },
   "publish": {
     "exclude": [".github", "*.test.ts"]

src/stat/mod.ts

@@ -174,3 +174,4 @@ export { statWrap as stat };
 export { lstat } from "node:fs/promises";
 export * from "./is.ts";
 export * from "./exists.ts";
+export * from "./size.ts";

src/stat/size.ts

@@ -0,0 +1,52 @@
+import { readdir, stat } from "node:fs/promises";
+import { join } from "@std/path";
+
+export async function diskusage(
+  inPath: string,
+  recursive?: boolean,
+): Promise<number> {
+  const statSelf = await stat(inPath);
+  const blockSize = statSelf.blksize;
+  const actualSize = Math.max(blockSize, statSelf.size);
+  if (statSelf.isFile()) {
+    return actualSize;
+  }
+  if (statSelf.isDirectory()) {
+    const files = await readdir(inPath, { withFileTypes: true });
+    const paths: Promise<number>[] = files.map((file) => {
+      const path = join(inPath, file.name);
+      return size(path, recursive);
+    });
+    const results = await Promise.allSettled(paths);
+    const sizes = results
+      .map((result) => result.status === "fulfilled" ? result.value : 0)
+      .flat(Infinity)
+      .reduce((i, size) => i + size, 0);
+    return sizes + actualSize;
+  }
+  return actualSize;
+}
+
+export async function size(
+  inPath: string,
+  recursive?: boolean,
+): Promise<number> {
+  const statSelf = await stat(inPath);
+  if (statSelf.isFile()) {
+    return statSelf.size;
+  }
+  if (statSelf.isDirectory()) {
+    const files = await readdir(inPath, { withFileTypes: true });
+    const paths: Promise<number>[] = files.map((file) => {
+      const path = join(inPath, file.name);
+      return size(path, recursive);
+    });
+    const results = await Promise.allSettled(paths);
+    const sizes = results
+      .map((result) => result.status === "fulfilled" ? result.value : 0)
+      .flat(Infinity)
+      .reduce((i, size) => i + size, 0);
+    return sizes + statSelf.size;
+  }
+  return statSelf.size;
+}