1 files changed, 127 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/util/identifier.js b/node_modules/webpack/lib/util/identifier.js
new file mode 100644
index 0000000..0c573e8
--- /dev/null
+++ b/node_modules/webpack/lib/util/identifier.js
@@ -0,0 +1,127 @@
+"use strict";
+const path = require("path");
+
+/**
+ * @param {string} context context for relative path
+ * @param {string} relativePath path
+ * @returns {string} absolute path
+ */
+const requestToAbsolute = (context, relativePath) => {
+	if (relativePath.startsWith("./") || relativePath.startsWith("../"))
+		return path.join(context, relativePath);
+	return relativePath;
+};
+
+/**
+ * @typedef {Object} MakeRelativePathsCache
+ * @property {Map<string, Map<string, string>>=} relativePaths
+ */
+
+/**
+ *
+ * @param {string} maybeAbsolutePath path to check
+ * @returns {boolean} returns true if path is "Absolute Path"-like
+ */
+const looksLikeAbsolutePath = maybeAbsolutePath => {
+	if (/^\/.*\/$/.test(maybeAbsolutePath)) {
+		// this 'path' is actually a regexp generated by dynamic requires.
+		// Don't treat it as an absolute path.
+		return false;
+	}
+	return /^(?:[a-z]:\\|\/)/i.test(maybeAbsolutePath);
+};
+
+/**
+ *
+ * @param {string} p path to normalize
+ * @returns {string} normalized version of path
+ */
+const normalizePathSeparator = p => p.replace(/\\/g, "/");
+
+/**
+ *
+ * @param {string} context context for relative path
+ * @param {string} identifier identifier for path
+ * @returns {string} a converted relative path
+ */
+const _makePathsRelative = (context, identifier) => {
+	return identifier
+		.split(/([|! ])/)
+		.map(str =>
+			looksLikeAbsolutePath(str)
+				? normalizePathSeparator(path.relative(context, str))
+				: str
+		)
+		.join("");
+};
+
+/**
+ *
+ * @param {string} context context used to create relative path
+ * @param {string} identifier identifier used to create relative path
+ * @param {MakeRelativePathsCache=} cache the cache object being set
+ * @returns {string} the returned relative path
+ */
+exports.makePathsRelative = (context, identifier, cache) => {
+	if (!cache) return _makePathsRelative(context, identifier);
+
+	const relativePaths =
+		cache.relativePaths || (cache.relativePaths = new Map());
+
+	let cachedResult;
+	let contextCache = relativePaths.get(context);
+	if (contextCache === undefined) {
+		relativePaths.set(context, (contextCache = new Map()));
+	} else {
+		cachedResult = contextCache.get(identifier);
+	}
+
+	if (cachedResult !== undefined) {
+		return cachedResult;
+	} else {
+		const relativePath = _makePathsRelative(context, identifier);
+		contextCache.set(identifier, relativePath);
+		return relativePath;
+	}
+};
+
+/**
+ * @param {string} context absolute context path
+ * @param {string} request any request string may containing absolute paths, query string, etc.
+ * @returns {string} a new request string avoiding absolute paths when possible
+ */
+exports.contextify = (context, request) => {
+	return request
+		.split("!")
+		.map(r => {
+			const splitPath = r.split("?", 2);
+			if (/^[a-zA-Z]:\\/.test(splitPath[0])) {
+				splitPath[0] = path.win32.relative(context, splitPath[0]);
+				if (!/^[a-zA-Z]:\\/.test(splitPath[0])) {
+					splitPath[0] = splitPath[0].replace(/\\/g, "/");
+				}
+			}
+			if (/^\//.test(splitPath[0])) {
+				splitPath[0] = path.posix.relative(context, splitPath[0]);
+			}
+			if (!/^(\.\.\/|\/|[a-zA-Z]:\\)/.test(splitPath[0])) {
+				splitPath[0] = "./" + splitPath[0];
+			}
+			return splitPath.join("?");
+		})
+		.join("!");
+};
+
+/**
+ * @param {string} context absolute context path
+ * @param {string} request any request string
+ * @returns {string} a new request string using absolute paths when possible
+ */
+const _absolutify = (context, request) => {
+	return request
+		.split("!")
+		.map(r => requestToAbsolute(context, r))
+		.join("!");
+};
+
+exports.absolutify = _absolutify;