Function getBashSingleQuotedArgsCodemod

pkg/cli/codemod_bash_single_quoted_args.go:18–92

getBashSingleQuotedArgsCodemod rewrites tools.bash entries that contain single-quoted shell arguments into equivalent double-quoted forms so Copilot shell allow-tool generation does not truncate them to a prefix.

()

// single-quoted shell arguments into equivalent double-quoted forms so Copilot
// shell allow-tool generation does not truncate them to a prefix.
func getBashSingleQuotedArgsCodemod() Codemod {
	return Codemod{
		ID:           "bash-single-quoted-args-rewrite",
		Name:         "Rewrite single-quoted bash tool args",
		Description:  "Rewrites tools.bash entries like grep -n 'foo' to grep -n \"foo\" when safe, reducing Copilot shell() truncation warnings.",
		IntroducedIn: "0.39.0",
		Apply: func(content string, frontmatter map[string]any) (string, bool, error) {
			toolsValue, hasTools := frontmatter["tools"]
			if !hasTools {
				return content, false, nil
			}

			toolsMap, ok := toolsValue.(map[string]any)
			if !ok {
				return content, false, nil
			}

			bashValue, hasBash := toolsMap["bash"]
			if !hasBash {
				return content, false, nil
			}

			bashCommands, ok := bashValue.([]any)
			if !ok {
				return content, false, nil
			}

			updated := make([]any, len(bashCommands))
			copy(updated, bashCommands)

			changed := false
			var unsafeCommands []string
			for i, cmd := range bashCommands {
				cmdStr, ok := cmd.(string)
				if !ok {
					continue
				}

				rewritten, safe, rewrittenChanged := rewriteSingleQuotedBashArgs(cmdStr)
				if !safe {
					unsafeCommands = append(unsafeCommands, cmdStr)
					continue
				}
				if rewrittenChanged {
					updated[i] = rewritten
					changed = true
				}
			}

			for _, cmd := range unsafeCommands {
				fmt.Fprintln(os.Stderr, console.FormatWarningMessage(
					fmt.Sprintf("tools.bash entry %q contains an unclosed single-quoted segment and could not be safely rewritten; left unchanged", cmd)))
			}

			if !changed {
				return content, false, nil
			}