43 lines
1.1 KiB
TypeScript
43 lines
1.1 KiB
TypeScript
// accepts a multiline yaml string. if it starts with a key, the key will be removed, and the indent level will be reduced by one
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// example 1: "key: value" -> "value"
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// example 2:
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// """
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// key:
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// foo: bar
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// """
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// will be transformed into:
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// """
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// foo: bar
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// """
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export function cleanYaml(text: string, removeKey: string) {
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if (!removeKey) return text;
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const result: string[] = [];
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const prefix = removeKey + ":";
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const lines = text.split("\n");
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// remove first comment lines
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while (lines[0].startsWith("#")) lines.shift();
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const [firstLine, ...restLines] = lines;
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if (!firstLine.startsWith(prefix)) {
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// does not start with key, skip
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return text;
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} else {
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const first = firstLine.slice(prefix.length).trim();
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if (first) {
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result.push(first);
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}
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}
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if (restLines.length > 0) {
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const indentChars = restLines[0].match(/^(\s+)/)?.[0] || "";
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restLines
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.map((l) => (l.startsWith(indentChars) ? l.slice(indentChars.length) : l))
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.map((l) => l.trimEnd())
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.forEach((l) => result.push(l));
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}
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return result.join("\n");
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}
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