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Diffstat (limited to 'node_modules/tar/dist/commonjs/pax.js')
| -rw-r--r-- | node_modules/tar/dist/commonjs/pax.js | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/node_modules/tar/dist/commonjs/pax.js b/node_modules/tar/dist/commonjs/pax.js new file mode 100644 index 0000000..fce37f6 --- /dev/null +++ b/node_modules/tar/dist/commonjs/pax.js @@ -0,0 +1,182 @@ +"use strict"; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.Pax = void 0; +const node_path_1 = require("node:path"); +const header_js_1 = require("./header.js"); +class Pax { + atime; + mtime; + ctime; + charset; + comment; + gid; + uid; + gname; + uname; + linkpath; + dev; + ino; + nlink; + path; + size; + mode; + global; + constructor(obj, global = false) { + this.atime = obj.atime; + this.charset = obj.charset; + this.comment = obj.comment; + this.ctime = obj.ctime; + this.dev = obj.dev; + this.gid = obj.gid; + this.global = global; + this.gname = obj.gname; + this.ino = obj.ino; + this.linkpath = obj.linkpath; + this.mtime = obj.mtime; + this.nlink = obj.nlink; + this.path = obj.path; + this.size = obj.size; + this.uid = obj.uid; + this.uname = obj.uname; + } + encode() { + const body = this.encodeBody(); + if (body === '') { + return Buffer.allocUnsafe(0); + } + const bodyLen = Buffer.byteLength(body); + // round up to 512 bytes + // add 512 for header + const bufLen = 512 * Math.ceil(1 + bodyLen / 512); + const buf = Buffer.allocUnsafe(bufLen); + // 0-fill the header section, it might not hit every field + for (let i = 0; i < 512; i++) { + buf[i] = 0; + } + new header_js_1.Header({ + // XXX split the path + // then the path should be PaxHeader + basename, but less than 99, + // prepend with the dirname + /* c8 ignore start */ + path: ('PaxHeader/' + (0, node_path_1.basename)(this.path ?? '')).slice(0, 99), + /* c8 ignore stop */ + mode: this.mode || 0o644, + uid: this.uid, + gid: this.gid, + size: bodyLen, + mtime: this.mtime, + type: this.global ? 'GlobalExtendedHeader' : 'ExtendedHeader', + linkpath: '', + uname: this.uname || '', + gname: this.gname || '', + devmaj: 0, + devmin: 0, + atime: this.atime, + ctime: this.ctime, + }).encode(buf); + buf.write(body, 512, bodyLen, 'utf8'); + // null pad after the body + for (let i = bodyLen + 512; i < buf.length; i++) { + buf[i] = 0; + } + return buf; + } + encodeBody() { + return (this.encodeField('path') + + this.encodeField('ctime') + + this.encodeField('atime') + + this.encodeField('dev') + + this.encodeField('ino') + + this.encodeField('nlink') + + this.encodeField('charset') + + this.encodeField('comment') + + this.encodeField('gid') + + this.encodeField('gname') + + this.encodeField('linkpath') + + this.encodeField('mtime') + + this.encodeField('size') + + this.encodeField('uid') + + this.encodeField('uname')); + } + encodeField(field) { + if (this[field] === undefined) { + return ''; + } + const r = this[field]; + const v = r instanceof Date ? r.getTime() / 1000 : r; + const s = ' ' + + (field === 'dev' || field === 'ino' || field === 'nlink' ? + 'SCHILY.' + : '') + + field + + '=' + + v + + '\n'; + const byteLen = Buffer.byteLength(s); + // the digits includes the length of the digits in ascii base-10 + // so if it's 9 characters, then adding 1 for the 9 makes it 10 + // which makes it 11 chars. + let digits = Math.floor(Math.log(byteLen) / Math.log(10)) + 1; + if (byteLen + digits >= Math.pow(10, digits)) { + digits += 1; + } + const len = digits + byteLen; + return len + s; + } + static parse(str, ex, g = false) { + return new Pax(merge(parseKV(str), ex), g); + } +} +exports.Pax = Pax; +const merge = (a, b) => b ? Object.assign({}, b, a) : a; +const parseKV = (str) => str + .replace(/\n$/, '') + .split('\n') + .reduce(parseKVLine, Object.create(null)); +const parseKVLine = (set, line) => { + const n = parseInt(line, 10); + // XXX Values with \n in them will fail this. + // Refactor to not be a naive line-by-line parse. + if (n !== Buffer.byteLength(line) + 1) { + return set; + } + line = line.slice((n + ' ').length); + const kv = line.split('='); + const r = kv.shift(); + if (!r) { + return set; + } + const k = r.replace(/^SCHILY\.(dev|ino|nlink)/, '$1'); + const v = kv.join('=').replace(/\0.*/, ''); + switch (k) { + case 'path': + case 'linkpath': + case 'type': + case 'charset': + case 'comment': + case 'gname': + case 'uname': + set[k] = v; + break; + case 'ctime': + case 'atime': + case 'mtime': + set[k] = new Date(Number(v) * 1000); + break; + case 'size': + const s = +v; + if (s >= 0) + set[k] = s; + break; + case 'gid': + case 'uid': + case 'dev': + case 'ino': + case 'nlink': + case 'mode': + set[k] = +v; + break; + } + return set; +}; +//# sourceMappingURL=pax.js.map
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