initial commit

node_modules/tailwindcss/lib/lib/setupTrackingContext.js

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+// @ts-check
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, // DISABLE_TOUCH = TRUE
+// Retrieve an existing context from cache if possible (since contexts are unique per
+// source path), or set up a new one (including setting up watchers and registering
+// plugins) then return it
+"default", {
+    enumerable: true,
+    get: function() {
+        return setupTrackingContext;
+    }
+});
+const _fs = /*#__PURE__*/ _interop_require_default(require("fs"));
+const _quicklru = /*#__PURE__*/ _interop_require_default(require("@alloc/quick-lru"));
+const _hashConfig = /*#__PURE__*/ _interop_require_default(require("../util/hashConfig"));
+const _resolveconfig = /*#__PURE__*/ _interop_require_default(require("../public/resolve-config"));
+const _resolveConfigPath = /*#__PURE__*/ _interop_require_default(require("../util/resolveConfigPath"));
+const _setupContextUtils = require("./setupContextUtils");
+const _parseDependency = /*#__PURE__*/ _interop_require_default(require("../util/parseDependency"));
+const _validateConfig = require("../util/validateConfig.js");
+const _content = require("./content.js");
+const _loadconfig = require("../lib/load-config");
+const _getModuleDependencies = /*#__PURE__*/ _interop_require_default(require("./getModuleDependencies"));
+function _interop_require_default(obj) {
+    return obj && obj.__esModule ? obj : {
+        default: obj
+    };
+}
+let configPathCache = new _quicklru.default({
+    maxSize: 100
+});
+let candidateFilesCache = new WeakMap();
+function getCandidateFiles(context, tailwindConfig) {
+    if (candidateFilesCache.has(context)) {
+        return candidateFilesCache.get(context);
+    }
+    let candidateFiles = (0, _content.parseCandidateFiles)(context, tailwindConfig);
+    return candidateFilesCache.set(context, candidateFiles).get(context);
+}
+// Get the config object based on a path
+function getTailwindConfig(configOrPath) {
+    let userConfigPath = (0, _resolveConfigPath.default)(configOrPath);
+    if (userConfigPath !== null) {
+        let [prevConfig, prevConfigHash, prevDeps, prevModified] = configPathCache.get(userConfigPath) || [];
+        let newDeps = (0, _getModuleDependencies.default)(userConfigPath);
+        let modified = false;
+        let newModified = new Map();
+        for (let file of newDeps){
+            let time = _fs.default.statSync(file).mtimeMs;
+            newModified.set(file, time);
+            if (!prevModified || !prevModified.has(file) || time > prevModified.get(file)) {
+                modified = true;
+            }
+        }
+        // It hasn't changed (based on timestamps)
+        if (!modified) {
+            return [
+                prevConfig,
+                userConfigPath,
+                prevConfigHash,
+                prevDeps
+            ];
+        }
+        // It has changed (based on timestamps), or first run
+        for (let file of newDeps){
+            delete require.cache[file];
+        }
+        let newConfig = (0, _validateConfig.validateConfig)((0, _resolveconfig.default)((0, _loadconfig.loadConfig)(userConfigPath)));
+        let newHash = (0, _hashConfig.default)(newConfig);
+        configPathCache.set(userConfigPath, [
+            newConfig,
+            newHash,
+            newDeps,
+            newModified
+        ]);
+        return [
+            newConfig,
+            userConfigPath,
+            newHash,
+            newDeps
+        ];
+    }
+    var _configOrPath_config, _ref;
+    // It's a plain object, not a path
+    let newConfig = (0, _resolveconfig.default)((_ref = (_configOrPath_config = configOrPath === null || configOrPath === void 0 ? void 0 : configOrPath.config) !== null && _configOrPath_config !== void 0 ? _configOrPath_config : configOrPath) !== null && _ref !== void 0 ? _ref : {});
+    newConfig = (0, _validateConfig.validateConfig)(newConfig);
+    return [
+        newConfig,
+        null,
+        (0, _hashConfig.default)(newConfig),
+        []
+    ];
+}
+function setupTrackingContext(configOrPath) {
+    return ({ tailwindDirectives , registerDependency  })=>{
+        return (root, result)=>{
+            let [tailwindConfig, userConfigPath, tailwindConfigHash, configDependencies] = getTailwindConfig(configOrPath);
+            let contextDependencies = new Set(configDependencies);
+            // If there are no @tailwind or @apply rules, we don't consider this CSS
+            // file or its dependencies to be dependencies of the context. Can reuse
+            // the context even if they change. We may want to think about `@layer`
+            // being part of this trigger too, but it's tough because it's impossible
+            // for a layer in one file to end up in the actual @tailwind rule in
+            // another file since independent sources are effectively isolated.
+            if (tailwindDirectives.size > 0) {
+                // Add current css file as a context dependencies.
+                contextDependencies.add(result.opts.from);
+                // Add all css @import dependencies as context dependencies.
+                for (let message of result.messages){
+                    if (message.type === "dependency") {
+                        contextDependencies.add(message.file);
+                    }
+                }
+            }
+            let [context, , mTimesToCommit] = (0, _setupContextUtils.getContext)(root, result, tailwindConfig, userConfigPath, tailwindConfigHash, contextDependencies);
+            let fileModifiedMap = (0, _setupContextUtils.getFileModifiedMap)(context);
+            let candidateFiles = getCandidateFiles(context, tailwindConfig);
+            // If there are no @tailwind or @apply rules, we don't consider this CSS file or it's
+            // dependencies to be dependencies of the context. Can reuse the context even if they change.
+            // We may want to think about `@layer` being part of this trigger too, but it's tough
+            // because it's impossible for a layer in one file to end up in the actual @tailwind rule
+            // in another file since independent sources are effectively isolated.
+            if (tailwindDirectives.size > 0) {
+                // Add template paths as postcss dependencies.
+                for (let contentPath of candidateFiles){
+                    for (let dependency of (0, _parseDependency.default)(contentPath)){
+                        registerDependency(dependency);
+                    }
+                }
+                let [changedContent, contentMTimesToCommit] = (0, _content.resolvedChangedContent)(context, candidateFiles, fileModifiedMap);
+                for (let content of changedContent){
+                    context.changedContent.push(content);
+                }
+                // Add the mtimes of the content files to the commit list
+                // We can overwrite the existing values because unconditionally
+                // This is because:
+                // 1. Most of the files here won't be in the map yet
+                // 2. If they are that means it's a context dependency
+                // and we're reading this after the context. This means
+                // that the mtime we just read is strictly >= the context
+                // mtime. Unless the user / os is doing something weird
+                // in which the mtime would be going backwards. If that
+                // happens there's already going to be problems.
+                for (let [path, mtime] of contentMTimesToCommit.entries()){
+                    mTimesToCommit.set(path, mtime);
+                }
+            }
+            for (let file of configDependencies){
+                registerDependency({
+                    type: "dependency",
+                    file
+                });
+            }
+            // "commit" the new modified time for all context deps
+            // We do this here because we want content tracking to
+            // read the "old" mtime even when it's a context dependency.
+            for (let [path, mtime] of mTimesToCommit.entries()){
+                fileModifiedMap.set(path, mtime);
+            }
+            return context;
+        };
+    };
+}