Files
stack/packages/mosaic/src/template/engine.ts
Jason Woltje b57fc317b8
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feat(mosaic): migrate install wizard from v0 to v1
Complete port of the ~2000 LOC mosaic install wizard from v0. Migrates
all 27 source files across the prompter, config, platform, template,
runtime, skills, and stages subsystems to v1 ESM/NodeNext conventions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-14 19:54:09 -05:00

24 lines
613 B
TypeScript

export interface TemplateVars {
[key: string]: string;
}
/**
* Replaces {{PLACEHOLDER}} tokens with provided values.
* Does NOT expand ${ENV_VAR} syntax — those pass through for shell resolution.
*/
export function renderTemplate(
template: string,
vars: TemplateVars,
options: { strict?: boolean } = {},
): string {
return template.replace(/\{\{([A-Z_][A-Z0-9_]*)\}\}/g, (match, varName: string) => {
if (varName in vars) {
return vars[varName] ?? '';
}
if (options.strict) {
throw new Error(`Template variable not provided: {{${varName}}}`);
}
return '';
});
}