update in code and install glob to expand *.txt

Author: sheetalkharab

implement-shell-tools/cat/cat.js

@@ -1,53 +1,56 @@
 import { program } from "commander";
 import process from "node:process";
 import { promises as fs } from "node:fs";
+import glob from "glob";
 
 program
-    .name("cat")
-    .description("print the content of file")
-    .option("-n, --line-numbers","Number the output lines, starting at 1")
-    .option("-b, --number-nonblank", "Number non-empty output lines, overrides -n")
-    .argument("<paths...>", "The file path(s) to process"); // to support multiple file
+  .name("cat")
+  .description("print the content of file")
+  .option("-n, --line-numbers", "Number the output lines, starting at 1")
+  .option(
+    "-b, --number-nonblank",
+    "Number non-empty output lines, overrides -n"
+  )
+  .argument("<paths...>", "The file path(s) to process"); // to support multiple file
 program.parse();
 
-const argv = program.args;
+const argv = program.args.flatMap((path) => glob.sync(path));
+
 const options = program.opts();
 if (argv.length === 0) {
-    console.error(`No file paths provided`);// to support more files 
-    process.exit(1);
+  console.error(`No file paths provided`); // to support more files
+  process.exit(1);
 }
 
 let lineCounter = 1;
-
-for (const path of argv) {
-    try {
-const content = await fs.readFile(path, "utf-8");
-const lines= content.split(/\r?\n/);
-if (lines.length && lines[lines.length - 1] === '') {//// Remove trailing empty line if it's just from the final newline
-    lines.pop();
+function printLine(line, number = false) {
+  if (number && line.trim() !== "") {
+    const lineNumber = String(lineCounter++).padStart(6, " ");
+    console.log(`${lineNumber}\t${line}`);
+  } else {
+    console.log(line);
+  }
 }
-
-if (options.numberNonblank) {
-            lines.forEach((line) => {
-                if (line.trim() === "") {
-                    console.log(""); // Blank line, no number
-                } else {
-                    const lineNumber = String(lineCounter++).padStart(6, " ");
-                    console.log(`${lineNumber}\t${line}`);
-                }
-            });
-        
-}else if (options.lineNumbers) {
-    lines.forEach((line) => {
-        const lineNumber = String(lineCounter++).padStart(6, ' ');
-        console.log(`${lineNumber}\t${line}`)
-    });
-   
-} else {
-    process.stdout.write(content);
-    if (!content.endsWith('\n')) process.stdout.write('\n');
-        }
-    } catch (err) {
-        console.error(`cat: ${path}: ${err.message}`);
+// Helper function to print totals for multiple files
+function printTotal(total, label = "total") {
+  console.log(`${total} ${label}`);
+}
+for (const path of argv) {
+  try {
+    const content = await fs.readFile(path, "utf-8");
+    const lines = content.split(/\r?\n/);
+    if (lines.length && lines[lines.length - 1] === "") {
+      // Remove trailing empty line if it's just from the final newline
+      lines.pop();
     }
+    // Determine if we need to number lines
+    const numberLines = options.numberNonblank || options.lineNumbers;
+
+    lines.forEach((line) => printLine(line, numberLines));
+
+    // Add a newline if the file didn't end with one
+    if (!content.endsWith("\n")) process.stdout.write("\n");
+  } catch (err) {
+    console.error(`cat: ${path}: ${err.message}`);
+  }
 }

implement-shell-tools/package-lock.json

@@ -1,6 +1,7 @@
 {
   "type": "module",
   "dependencies": {
-    "commander": "^14.0.0"
+    "commander": "^14.0.0",
+    "glob": "^8.1.0"
   }
 }