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// A readable tar stream creator
// Technically, this is a transform stream that you write paths into,
// and tar format comes out of.
// The `add()` method is like `write()` but returns this,
// and end() return `this` as well, so you can
// do `new Pack(opt).add('files').add('dir').end().pipe(output)
// You could also do something like:
// streamOfPaths().pipe(new Pack()).pipe(new fs.WriteStream('out.tar'))
import fs from 'fs';
import { WriteEntry, WriteEntrySync, WriteEntryTar, } from './write-entry.js';
export class PackJob {
    path;
    absolute;
    entry;
    stat;
    readdir;
    pending = false;
    ignore = false;
    piped = false;
    constructor(path, absolute) {
        this.path = path || './';
        this.absolute = absolute;
    }
}
import { Minipass } from 'minipass';
import * as zlib from 'minizlib';
import { Yallist } from 'yallist';
import { ReadEntry } from './read-entry.js';
import { warnMethod, } from './warn-method.js';
const EOF = Buffer.alloc(1024);
const ONSTAT = Symbol('onStat');
const ENDED = Symbol('ended');
const QUEUE = Symbol('queue');
const CURRENT = Symbol('current');
const PROCESS = Symbol('process');
const PROCESSING = Symbol('processing');
const PROCESSJOB = Symbol('processJob');
const JOBS = Symbol('jobs');
const JOBDONE = Symbol('jobDone');
const ADDFSENTRY = Symbol('addFSEntry');
const ADDTARENTRY = Symbol('addTarEntry');
const STAT = Symbol('stat');
const READDIR = Symbol('readdir');
const ONREADDIR = Symbol('onreaddir');
const PIPE = Symbol('pipe');
const ENTRY = Symbol('entry');
const ENTRYOPT = Symbol('entryOpt');
const WRITEENTRYCLASS = Symbol('writeEntryClass');
const WRITE = Symbol('write');
const ONDRAIN = Symbol('ondrain');
import path from 'path';
import { normalizeWindowsPath } from './normalize-windows-path.js';
export class Pack extends Minipass {
    opt;
    cwd;
    maxReadSize;
    preservePaths;
    strict;
    noPax;
    prefix;
    linkCache;
    statCache;
    file;
    portable;
    zip;
    readdirCache;
    noDirRecurse;
    follow;
    noMtime;
    mtime;
    filter;
    jobs;
    [WRITEENTRYCLASS];
    onWriteEntry;
    [QUEUE];
    [JOBS] = 0;
    [PROCESSING] = false;
    [ENDED] = false;
    constructor(opt = {}) {
        //@ts-ignore
        super();
        this.opt = opt;
        this.file = opt.file || '';
        this.cwd = opt.cwd || process.cwd();
        this.maxReadSize = opt.maxReadSize;
        this.preservePaths = !!opt.preservePaths;
        this.strict = !!opt.strict;
        this.noPax = !!opt.noPax;
        this.prefix = normalizeWindowsPath(opt.prefix || '');
        this.linkCache = opt.linkCache || new Map();
        this.statCache = opt.statCache || new Map();
        this.readdirCache = opt.readdirCache || new Map();
        this.onWriteEntry = opt.onWriteEntry;
        this[WRITEENTRYCLASS] = WriteEntry;
        if (typeof opt.onwarn === 'function') {
            this.on('warn', opt.onwarn);
        }
        this.portable = !!opt.portable;
        if (opt.gzip || opt.brotli) {
            if (opt.gzip && opt.brotli) {
                throw new TypeError('gzip and brotli are mutually exclusive');
            }
            if (opt.gzip) {
                if (typeof opt.gzip !== 'object') {
                    opt.gzip = {};
                }
                if (this.portable) {
                    opt.gzip.portable = true;
                }
                this.zip = new zlib.Gzip(opt.gzip);
            }
            if (opt.brotli) {
                if (typeof opt.brotli !== 'object') {
                    opt.brotli = {};
                }
                this.zip = new zlib.BrotliCompress(opt.brotli);
            }
            /* c8 ignore next */
            if (!this.zip)
                throw new Error('impossible');
            const zip = this.zip;
            zip.on('data', chunk => super.write(chunk));
            zip.on('end', () => super.end());
            zip.on('drain', () => this[ONDRAIN]());
            this.on('resume', () => zip.resume());
        }
        else {
            this.on('drain', this[ONDRAIN]);
        }
        this.noDirRecurse = !!opt.noDirRecurse;
        this.follow = !!opt.follow;
        this.noMtime = !!opt.noMtime;
        if (opt.mtime)
            this.mtime = opt.mtime;
        this.filter =
            typeof opt.filter === 'function' ? opt.filter : () => true;
        this[QUEUE] = new Yallist();
        this[JOBS] = 0;
        this.jobs = Number(opt.jobs) || 4;
        this[PROCESSING] = false;
        this[ENDED] = false;
    }
    [WRITE](chunk) {
        return super.write(chunk);
    }
    add(path) {
        this.write(path);
        return this;
    }
    end(path, encoding, cb) {
        /* c8 ignore start */
        if (typeof path === 'function') {
            cb = path;
            path = undefined;
        }
        if (typeof encoding === 'function') {
            cb = encoding;
            encoding = undefined;
        }
        /* c8 ignore stop */
        if (path) {
            this.add(path);
        }
        this[ENDED] = true;
        this[PROCESS]();
        /* c8 ignore next */
        if (cb)
            cb();
        return this;
    }
    write(path) {
        if (this[ENDED]) {
            throw new Error('write after end');
        }
        if (path instanceof ReadEntry) {
            this[ADDTARENTRY](path);
        }
        else {
            this[ADDFSENTRY](path);
        }
        return this.flowing;
    }
    [ADDTARENTRY](p) {
        const absolute = normalizeWindowsPath(path.resolve(this.cwd, p.path));
        // in this case, we don't have to wait for the stat
        if (!this.filter(p.path, p)) {
            p.resume();
        }
        else {
            const job = new PackJob(p.path, absolute);
            job.entry = new WriteEntryTar(p, this[ENTRYOPT](job));
            job.entry.on('end', () => this[JOBDONE](job));
            this[JOBS] += 1;
            this[QUEUE].push(job);
        }
        this[PROCESS]();
    }
    [ADDFSENTRY](p) {
        const absolute = normalizeWindowsPath(path.resolve(this.cwd, p));
        this[QUEUE].push(new PackJob(p, absolute));
        this[PROCESS]();
    }
    [STAT](job) {
        job.pending = true;
        this[JOBS] += 1;
        const stat = this.follow ? 'stat' : 'lstat';
        fs[stat](job.absolute, (er, stat) => {
            job.pending = false;
            this[JOBS] -= 1;
            if (er) {
                this.emit('error', er);
            }
            else {
                this[ONSTAT](job, stat);
            }
        });
    }
    [ONSTAT](job, stat) {
        this.statCache.set(job.absolute, stat);
        job.stat = stat;
        // now we have the stat, we can filter it.
        if (!this.filter(job.path, stat)) {
            job.ignore = true;
        }
        this[PROCESS]();
    }
    [READDIR](job) {
        job.pending = true;
        this[JOBS] += 1;
        fs.readdir(job.absolute, (er, entries) => {
            job.pending = false;
            this[JOBS] -= 1;
            if (er) {
                return this.emit('error', er);
            }
            this[ONREADDIR](job, entries);
        });
    }
    [ONREADDIR](job, entries) {
        this.readdirCache.set(job.absolute, entries);
        job.readdir = entries;
        this[PROCESS]();
    }
    [PROCESS]() {
        if (this[PROCESSING]) {
            return;
        }
        this[PROCESSING] = true;
        for (let w = this[QUEUE].head; !!w && this[JOBS] < this.jobs; w = w.next) {
            this[PROCESSJOB](w.value);
            if (w.value.ignore) {
                const p = w.next;
                this[QUEUE].removeNode(w);
                w.next = p;
            }
        }
        this[PROCESSING] = false;
        if (this[ENDED] && !this[QUEUE].length && this[JOBS] === 0) {
            if (this.zip) {
                this.zip.end(EOF);
            }
            else {
                super.write(EOF);
                super.end();
            }
        }
    }
    get [CURRENT]() {
        return this[QUEUE] && this[QUEUE].head && this[QUEUE].head.value;
    }
    [JOBDONE](_job) {
        this[QUEUE].shift();
        this[JOBS] -= 1;
        this[PROCESS]();
    }
    [PROCESSJOB](job) {
        if (job.pending) {
            return;
        }
        if (job.entry) {
            if (job === this[CURRENT] && !job.piped) {
                this[PIPE](job);
            }
            return;
        }
        if (!job.stat) {
            const sc = this.statCache.get(job.absolute);
            if (sc) {
                this[ONSTAT](job, sc);
            }
            else {
                this[STAT](job);
            }
        }
        if (!job.stat) {
            return;
        }
        // filtered out!
        if (job.ignore) {
            return;
        }
        if (!this.noDirRecurse &&
            job.stat.isDirectory() &&
            !job.readdir) {
            const rc = this.readdirCache.get(job.absolute);
            if (rc) {
                this[ONREADDIR](job, rc);
            }
            else {
                this[READDIR](job);
            }
            if (!job.readdir) {
                return;
            }
        }
        // we know it doesn't have an entry, because that got checked above
        job.entry = this[ENTRY](job);
        if (!job.entry) {
            job.ignore = true;
            return;
        }
        if (job === this[CURRENT] && !job.piped) {
            this[PIPE](job);
        }
    }
    [ENTRYOPT](job) {
        return {
            onwarn: (code, msg, data) => this.warn(code, msg, data),
            noPax: this.noPax,
            cwd: this.cwd,
            absolute: job.absolute,
            preservePaths: this.preservePaths,
            maxReadSize: this.maxReadSize,
            strict: this.strict,
            portable: this.portable,
            linkCache: this.linkCache,
            statCache: this.statCache,
            noMtime: this.noMtime,
            mtime: this.mtime,
            prefix: this.prefix,
            onWriteEntry: this.onWriteEntry,
        };
    }
    [ENTRY](job) {
        this[JOBS] += 1;
        try {
            const e = new this[WRITEENTRYCLASS](job.path, this[ENTRYOPT](job));
            return e
                .on('end', () => this[JOBDONE](job))
                .on('error', er => this.emit('error', er));
        }
        catch (er) {
            this.emit('error', er);
        }
    }
    [ONDRAIN]() {
        if (this[CURRENT] && this[CURRENT].entry) {
            this[CURRENT].entry.resume();
        }
    }
    // like .pipe() but using super, because our write() is special
    [PIPE](job) {
        job.piped = true;
        if (job.readdir) {
            job.readdir.forEach(entry => {
                const p = job.path;
                const base = p === './' ? '' : p.replace(/\/*$/, '/');
                this[ADDFSENTRY](base + entry);
            });
        }
        const source = job.entry;
        const zip = this.zip;
        /* c8 ignore start */
        if (!source)
            throw new Error('cannot pipe without source');
        /* c8 ignore stop */
        if (zip) {
            source.on('data', chunk => {
                if (!zip.write(chunk)) {
                    source.pause();
                }
            });
        }
        else {
            source.on('data', chunk => {
                if (!super.write(chunk)) {
                    source.pause();
                }
            });
        }
    }
    pause() {
        if (this.zip) {
            this.zip.pause();
        }
        return super.pause();
    }
    warn(code, message, data = {}) {
        warnMethod(this, code, message, data);
    }
}
export class PackSync extends Pack {
    sync = true;
    constructor(opt) {
        super(opt);
        this[WRITEENTRYCLASS] = WriteEntrySync;
    }
    // pause/resume are no-ops in sync streams.
    pause() { }
    resume() { }
    [STAT](job) {
        const stat = this.follow ? 'statSync' : 'lstatSync';
        this[ONSTAT](job, fs[stat](job.absolute));
    }
    [READDIR](job) {
        this[ONREADDIR](job, fs.readdirSync(job.absolute));
    }
    // gotta get it all in this tick
    [PIPE](job) {
        const source = job.entry;
        const zip = this.zip;
        if (job.readdir) {
            job.readdir.forEach(entry => {
                const p = job.path;
                const base = p === './' ? '' : p.replace(/\/*$/, '/');
                this[ADDFSENTRY](base + entry);
            });
        }
        /* c8 ignore start */
        if (!source)
            throw new Error('Cannot pipe without source');
        /* c8 ignore stop */
        if (zip) {
            source.on('data', chunk => {
                zip.write(chunk);
            });
        }
        else {
            source.on('data', chunk => {
                super[WRITE](chunk);
            });
        }
    }
}
//# sourceMappingURL=pack.js.map

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