internal-globber.js

"use strict";
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var __asyncGenerator = (this && this.__asyncGenerator) || function (thisArg, _arguments, generator) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.DefaultGlobber = void 0;
const core = __importStar(require("@actions/core"));
const fs = __importStar(require("fs"));
const globOptionsHelper = __importStar(require("./internal-glob-options-helper"));
const path = __importStar(require("path"));
const patternHelper = __importStar(require("./internal-pattern-helper"));
const internal_match_kind_1 = require("./internal-match-kind");
const internal_pattern_1 = require("./internal-pattern");
const internal_search_state_1 = require("./internal-search-state");
const IS_WINDOWS = process.platform === 'win32';
class DefaultGlobber {
    constructor(options) {
        this.patterns = [];
        this.searchPaths = [];
        this.options = globOptionsHelper.getOptions(options);
    }
    getSearchPaths() {
        // Return a copy
        return this.searchPaths.slice();
    }
    glob() {
        var e_1, _a;
        return __awaiter(this, void 0, void 0, function* () {
            const result = [];
            try {
                for (var _b = __asyncValues(this.globGenerator()), _c; _c = yield _b.next(), !_c.done;) {
                    const itemPath = _c.value;
                    result.push(itemPath);
                }
            }
            catch (e_1_1) { e_1 = { error: e_1_1 }; }
            finally {
                try {
                    if (_c && !_c.done && (_a = _b.return)) yield _a.call(_b);
                }
                finally { if (e_1) throw e_1.error; }
            }
            return result;
        });
    }
    globGenerator() {
        return __asyncGenerator(this, arguments, function* globGenerator_1() {
            // Fill in defaults options
            const options = globOptionsHelper.getOptions(this.options);
            // Implicit descendants?
            const patterns = [];
            for (const pattern of this.patterns) {
                patterns.push(pattern);
                if (options.implicitDescendants &&
                    (pattern.trailingSeparator ||
                        pattern.segments[pattern.segments.length - 1] !== '**')) {
                    patterns.push(new internal_pattern_1.Pattern(pattern.negate, true, pattern.segments.concat('**')));
                }
            }
            // Push the search paths
            const stack = [];
            for (const searchPath of patternHelper.getSearchPaths(patterns)) {
                core.debug(`Search path '${searchPath}'`);
                // Exists?
                try {
                    // Intentionally using lstat. Detection for broken symlink
                    // will be performed later (if following symlinks).
                    yield __await(fs.promises.lstat(searchPath));
                }
                catch (err) {
                    if (err.code === 'ENOENT') {
                        continue;
                    }
                    throw err;
                }
                stack.unshift(new internal_search_state_1.SearchState(searchPath, 1));
            }
            // Search
            const traversalChain = []; // used to detect cycles
            while (stack.length) {
                // Pop
                const item = stack.pop();
                // Match?
                const match = patternHelper.match(patterns, item.path);
                const partialMatch = !!match || patternHelper.partialMatch(patterns, item.path);
                if (!match && !partialMatch) {
                    continue;
                }
                // Stat
                const stats = yield __await(DefaultGlobber.stat(item, options, traversalChain)
                // Broken symlink, or symlink cycle detected, or no longer exists
                );
                // Broken symlink, or symlink cycle detected, or no longer exists
                if (!stats) {
                    continue;
                }
                // Directory
                if (stats.isDirectory()) {
                    // Matched
                    if (match & internal_match_kind_1.MatchKind.Directory) {
                        yield yield __await(item.path);
                    }
                    // Descend?
                    else if (!partialMatch) {
                        continue;
                    }
                    // Push the child items in reverse
                    const childLevel = item.level + 1;
                    const childItems = (yield __await(fs.promises.readdir(item.path))).map(x => new internal_search_state_1.SearchState(path.join(item.path, x), childLevel));
                    stack.push(...childItems.reverse());
                }
                // File
                else if (match & internal_match_kind_1.MatchKind.File) {
                    yield yield __await(item.path);
                }
            }
        });
    }
    /**
     * Constructs a DefaultGlobber
     */
    static create(patterns, options) {
        return __awaiter(this, void 0, void 0, function* () {
            const result = new DefaultGlobber(options);
            if (IS_WINDOWS) {
                patterns = patterns.replace(/\r\n/g, '\n');
                patterns = patterns.replace(/\r/g, '\n');
            }
            const lines = patterns.split('\n').map(x => x.trim());
            for (const line of lines) {
                // Empty or comment
                if (!line || line.startsWith('#')) {
                    continue;
                }
                // Pattern
                else {
                    result.patterns.push(new internal_pattern_1.Pattern(line));
                }
            }
            result.searchPaths.push(...patternHelper.getSearchPaths(result.patterns));
            return result;
        });
    }
    static stat(item, options, traversalChain) {
        return __awaiter(this, void 0, void 0, function* () {
            // Note:
            // `stat` returns info about the target of a symlink (or symlink chain)
            // `lstat` returns info about a symlink itself
            let stats;
            if (options.followSymbolicLinks) {
                try {
                    // Use `stat` (following symlinks)
                    stats = yield fs.promises.stat(item.path);
                }
                catch (err) {
                    if (err.code === 'ENOENT') {
                        if (options.omitBrokenSymbolicLinks) {
                            core.debug(`Broken symlink '${item.path}'`);
                            return undefined;
                        }
                        throw new Error(`No information found for the path '${item.path}'. This may indicate a broken symbolic link.`);
                    }
                    throw err;
                }
            }
            else {
                // Use `lstat` (not following symlinks)
                stats = yield fs.promises.lstat(item.path);
            }
            // Note, isDirectory() returns false for the lstat of a symlink
            if (stats.isDirectory() && options.followSymbolicLinks) {
                // Get the realpath
                const realPath = yield fs.promises.realpath(item.path);
                // Fixup the traversal chain to match the item level
                while (traversalChain.length >= item.level) {
                    traversalChain.pop();
                }
                // Test for a cycle
                if (traversalChain.some((x) => x === realPath)) {
                    core.debug(`Symlink cycle detected for path '${item.path}' and realpath '${realPath}'`);
                    return undefined;
                }
                // Update the traversal chain
                traversalChain.push(realPath);
            }
            return stats;
        });
    }
}
exports.DefaultGlobber = DefaultGlobber;
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