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Windows global installs expose codex as codex.cmd; spawning 'codex' without shell hits ENOENT. Enable shell to align with Claude's Windows behavior and resolve PATH lookup. Shell spawn makes cmd.exe strip TOML double quotes in -c arrays, so args become a string. Switch mcp args to TOML literal (single-quoted) arrays to preserve types; update tests.
77 lines
2.5 KiB
TypeScript
77 lines
2.5 KiB
TypeScript
/**
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* Utilities for building Codex CLI config arguments (-c) for MCP servers
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* and developer instructions.
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*
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* Codex CLI accepts -c / --config flags with TOML-formatted key=value pairs.
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* This module generates the appropriate arguments for passing MCP server
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* configuration and developer instructions at runtime.
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*/
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/**
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* Escape a string value for use in a TOML string literal.
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* Handles double quotes, backslashes, and newlines.
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*/
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function escapeTomlString(value: string): string {
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return value
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.replace(/\\/g, '\\\\')
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.replace(/"/g, '\\"')
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.replace(/\n/g, '\\n')
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.replace(/\r/g, '\\r')
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.replace(/\t/g, '\\t');
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}
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/**
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* Escape a string value for use in a TOML single-quoted literal string.
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* Only single quotes need escaping (by doubling them).
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*/
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function escapeTomlLiteralString(value: string): string {
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return value.replace(/'/g, "''");
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}
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function buildTomlLiteralArray(values: string[]): string {
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const items = values.map((value) => `'${escapeTomlLiteralString(value)}'`);
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return `[${items.join(',')}]`;
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}
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/**
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* Build -c arguments for MCP server configuration.
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*
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* Generates arguments like:
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* -c 'mcp_servers.hapi.command="hapi"'
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* -c 'mcp_servers.hapi.args=['mcp', '--url', 'http://...']'
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*
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* @param mcpServers - Map of server name to server config
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* @returns Array of CLI arguments to pass to codex
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*/
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export function buildMcpServerConfigArgs(
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mcpServers: Record<string, { command: string; args: string[] }>
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): string[] {
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const configArgs: string[] = [];
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for (const [name, server] of Object.entries(mcpServers)) {
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// -c 'mcp_servers.<name>.command="<command>"'
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configArgs.push('-c', `mcp_servers.${name}.command="${escapeTomlString(server.command)}"`);
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// -c 'mcp_servers.<name>.args=['arg1','arg2']'
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// Use TOML literal strings to avoid shell-quote mangling on Windows.
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const argsToml = buildTomlLiteralArray(server.args);
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configArgs.push('-c', `mcp_servers.${name}.args=${argsToml}`);
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}
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return configArgs;
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}
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/**
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* Build -c argument for developer instructions.
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*
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* Generates argument like:
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* -c 'developer_instructions="<escaped instructions>"'
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*
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* @param instructions - Developer instructions text
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* @returns Array of CLI arguments to pass to codex
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*/
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export function buildDeveloperInstructionsArg(instructions: string): string[] {
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const escaped = escapeTomlString(instructions);
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return ['-c', `developer_instructions="${escaped}"`];
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}
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