new initial commit (history rewritten)

utils/bash/shellPrefix.ts

@@ -0,0 +1,28 @@
+import { quote } from './shellQuote.js'
+
+/**
+ * Parses a shell prefix that may contain an executable path and arguments.
+ *
+ * Examples:
+ * - "bash" -> quotes as 'bash'
+ * - "/usr/bin/bash -c" -> quotes as '/usr/bin/bash' -c
+ * - "C:\Program Files\Git\bin\bash.exe -c" -> quotes as 'C:\Program Files\Git\bin\bash.exe' -c
+ *
+ * @param prefix The shell prefix string containing executable and optional arguments
+ * @param command The command to be executed
+ * @returns The properly formatted command string with quoted components
+ */
+export function formatShellPrefixCommand(
+  prefix: string,
+  command: string,
+): string {
+  // Split on the last space before a dash to separate executable from arguments
+  const spaceBeforeDash = prefix.lastIndexOf(' -')
+  if (spaceBeforeDash > 0) {
+    const execPath = prefix.substring(0, spaceBeforeDash)
+    const args = prefix.substring(spaceBeforeDash + 1)
+    return `${quote([execPath])} ${args} ${quote([command])}`
+  } else {
+    return `${quote([prefix])} ${quote([command])}`
+  }
+}