d2542c9a62
Squash the current repository state back into one baseline commit while preserving the README reframing and repository contents. Constraint: User explicitly requested a single squashed commit with subject "asdf" Confidence: high Scope-risk: broad Reversibility: clean Directive: This commit intentionally rewrites published history; coordinate before future force-pushes Tested: git status clean; local history rewritten to one commit; force-pushed main to origin and instructkr Not-tested: Fresh clone verification after push
39 lines
1.0 KiB
TypeScript
39 lines
1.0 KiB
TypeScript
/**
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* Shared utilities for expanding environment variables in MCP server configurations
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*/
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/**
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* Expand environment variables in a string value
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* Handles ${VAR} and ${VAR:-default} syntax
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* @returns Object with expanded string and list of missing variables
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*/
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export function expandEnvVarsInString(value: string): {
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expanded: string
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missingVars: string[]
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} {
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const missingVars: string[] = []
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const expanded = value.replace(/\$\{([^}]+)\}/g, (match, varContent) => {
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// Split on :- to support default values (limit to 2 parts to preserve :- in defaults)
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const [varName, defaultValue] = varContent.split(':-', 2)
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const envValue = process.env[varName]
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if (envValue !== undefined) {
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return envValue
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}
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if (defaultValue !== undefined) {
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return defaultValue
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}
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// Track missing variable for error reporting
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missingVars.push(varName)
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// Return original if not found (allows debugging but will be reported as error)
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return match
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})
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return {
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expanded,
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missingVars,
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}
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}
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