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Escape special chars in shell scripts

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Sander Declerck 2025-10-06 16:25:12 +02:00
parent 04cb001006
commit 486a4b8f68
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2 changed files with 18 additions and 3 deletions
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packages/safe-chain/src/utils/safeSpawn.js
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@ -1,9 +1,15 @@
import { spawnSync, spawn } from "child_process";
function escapeArg(arg) {
// If argument contains spaces or quotes, wrap in double quotes and escape double quotes
if (arg.includes(" ") || arg.includes('"') || arg.includes("'")) {
return '"' + arg.replaceAll('"', '\\"') + '"';
// Shell metacharacters that need escaping
// These characters have special meaning in shells and need to be quoted
const shellMetaChars = /[ "&'|;<>()$`\\!*?[\]{}~#]/;
// If argument contains shell metacharacters, wrap in double quotes
// and escape characters that are special even inside double quotes
if (shellMetaChars.test(arg)) {
// Inside double quotes, we need to escape: " $ ` \
return '"' + arg.replace(/(["`$\\])/g, '\\$1') + '"';
}
return arg;
}