63 lines
2.4 KiB
Plaintext
63 lines
2.4 KiB
Plaintext
import path from "path";
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const IS_NATIVE_WIN32_PATH = /^[a-z]:[/\\]|^\\\\/i;
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const ABSOLUTE_SCHEME = /^[a-z0-9+\-.]+:/i;
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function getURLType(source) {
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if (source[0] === "/") {
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if (source[1] === "/") {
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return "scheme-relative";
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}
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return "path-absolute";
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}
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if (IS_NATIVE_WIN32_PATH.test(source)) {
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return "path-absolute";
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}
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return ABSOLUTE_SCHEME.test(source) ? "absolute" : "path-relative";
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}
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function normalizeSourceMap(map, resourceContext) {
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let newMap = map;
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// Some loader emit source map as string
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// Strip any JSON XSSI avoidance prefix from the string (as documented in the source maps specification), and then parse the string as JSON.
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if (typeof newMap === "string") {
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newMap = JSON.parse(newMap);
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}
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delete newMap.file;
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const { sourceRoot } = newMap;
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delete newMap.sourceRoot;
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if (newMap.sources) {
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newMap.sources = newMap.sources.map((source)=>{
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const sourceType = getURLType(source);
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// Do no touch `scheme-relative` and `absolute` URLs
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if (sourceType === "path-relative" || sourceType === "path-absolute") {
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const absoluteSource = sourceType === "path-relative" && sourceRoot ? path.resolve(sourceRoot, path.normalize(source)) : path.normalize(source);
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return path.relative(resourceContext, absoluteSource);
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}
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return source;
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});
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}
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return newMap;
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}
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function normalizeSourceMapAfterPostcss(map, resourceContext) {
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const newMap = map;
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// result.map.file is an optional property that provides the output filename.
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// Since we don't know the final filename in the webpack build chain yet, it makes no sense to have it.
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// eslint-disable-next-line no-param-reassign
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delete newMap.file;
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// eslint-disable-next-line no-param-reassign
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newMap.sourceRoot = "";
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// eslint-disable-next-line no-param-reassign
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newMap.sources = newMap.sources.map((source)=>{
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if (source.indexOf("<") === 0) {
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return source;
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}
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const sourceType = getURLType(source);
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// Do no touch `scheme-relative`, `path-absolute` and `absolute` types
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if (sourceType === "path-relative") {
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return path.resolve(resourceContext, source);
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}
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return source;
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});
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return newMap;
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}
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export { normalizeSourceMap, normalizeSourceMapAfterPostcss };
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//# sourceMappingURL=utils.js.map |