"use strict";
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/**
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* Constants (defined in `stat.h`).
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*/
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const S_IFMT = 61440; /* 0170000 type of file */
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const S_IFIFO = 4096; /* 0010000 named pipe (fifo) */
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const S_IFCHR = 8192; /* 0020000 character special */
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const S_IFDIR = 16384; /* 0040000 directory */
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const S_IFBLK = 24576; /* 0060000 block special */
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const S_IFREG = 32768; /* 0100000 regular */
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const S_IFLNK = 40960; /* 0120000 symbolic link */
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const S_IFSOCK = 49152; /* 0140000 socket */
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const S_IFWHT = 57344; /* 0160000 whiteout */
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const S_ISUID = 2048; /* 0004000 set user id on execution */
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const S_ISGID = 1024; /* 0002000 set group id on execution */
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const S_ISVTX = 512; /* 0001000 save swapped text even after use */
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const S_IRUSR = 256; /* 0000400 read permission, owner */
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const S_IWUSR = 128; /* 0000200 write permission, owner */
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const S_IXUSR = 64; /* 0000100 execute/search permission, owner */
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const S_IRGRP = 32; /* 0000040 read permission, group */
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const S_IWGRP = 16; /* 0000020 write permission, group */
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const S_IXGRP = 8; /* 0000010 execute/search permission, group */
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const S_IROTH = 4; /* 0000004 read permission, others */
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const S_IWOTH = 2; /* 0000002 write permission, others */
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const S_IXOTH = 1; /* 0000001 execute/search permission, others */
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function createMode(stat) {
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return new createMode.Mode(stat);
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}
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(function (createMode) {
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function isStatsMode(v) {
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return v && typeof v.mode === 'number';
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}
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createMode.isStatsMode = isStatsMode;
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class RWX {
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constructor(stat) {
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this.stat = stat;
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}
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get read() {
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return Boolean(this.stat.mode & this.constructor.r);
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}
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set read(v) {
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if (v) {
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this.stat.mode |= this.constructor.r;
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}
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else {
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this.stat.mode &= ~this.constructor.r;
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}
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}
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get write() {
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return Boolean(this.stat.mode & this.constructor.w);
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}
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set write(v) {
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if (v) {
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this.stat.mode |= this.constructor.w;
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}
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else {
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this.stat.mode &= ~this.constructor.w;
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}
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}
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get execute() {
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return Boolean(this.stat.mode & this.constructor.x);
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}
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set execute(v) {
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if (v) {
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this.stat.mode |= this.constructor.x;
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}
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else {
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this.stat.mode &= ~this.constructor.x;
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}
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}
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}
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createMode.RWX = RWX;
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class Owner extends RWX {
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}
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Owner.r = S_IRUSR;
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Owner.w = S_IWUSR;
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Owner.x = S_IXUSR;
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createMode.Owner = Owner;
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class Group extends RWX {
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}
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Group.r = S_IRGRP;
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Group.w = S_IWGRP;
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Group.x = S_IXGRP;
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createMode.Group = Group;
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class Others extends RWX {
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}
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Others.r = S_IROTH;
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Others.w = S_IWOTH;
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Others.x = S_IXOTH;
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createMode.Others = Others;
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class Mode {
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constructor(stat) {
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if (typeof stat === 'number') {
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this.stat = { mode: stat };
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}
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else if (isStatsMode(stat)) {
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this.stat = stat;
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}
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else {
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this.stat = { mode: 0 };
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}
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this.owner = new Owner(this.stat);
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this.group = new Group(this.stat);
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this.others = new Others(this.stat);
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}
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checkModeProperty(property, set) {
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const { mode } = this.stat;
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if (set) {
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this.stat.mode = ((mode | S_IFMT) & property) | (mode & ~S_IFMT);
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}
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return (mode & S_IFMT) === property;
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}
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isDirectory(v) {
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return this.checkModeProperty(S_IFDIR, v);
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}
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isFile(v) {
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return this.checkModeProperty(S_IFREG, v);
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}
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isBlockDevice(v) {
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return this.checkModeProperty(S_IFBLK, v);
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}
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isCharacterDevice(v) {
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return this.checkModeProperty(S_IFCHR, v);
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}
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isSymbolicLink(v) {
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return this.checkModeProperty(S_IFLNK, v);
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}
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isFIFO(v) {
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return this.checkModeProperty(S_IFIFO, v);
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}
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isSocket(v) {
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return this.checkModeProperty(S_IFSOCK, v);
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}
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/**
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* Returns an octal representation of the `mode`, eg. "0754".
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*
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* http://en.wikipedia.org/wiki/File_system_permissions#Numeric_notation
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*
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* @return {String}
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* @api public
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*/
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toOctal() {
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const octal = this.stat.mode & 4095 /* 07777 */;
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return `0000${octal.toString(8)}`.slice(-4);
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}
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/**
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* Returns a String representation of the `mode`.
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* The output resembles something similar to what `ls -l` would output.
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*
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* http://en.wikipedia.org/wiki/Unix_file_types
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*
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* @return {String}
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* @api public
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*/
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toString() {
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const str = [];
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// file type
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if (this.isDirectory()) {
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str.push('d');
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}
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else if (this.isFile()) {
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str.push('-');
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}
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else if (this.isBlockDevice()) {
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str.push('b');
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}
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else if (this.isCharacterDevice()) {
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str.push('c');
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}
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else if (this.isSymbolicLink()) {
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str.push('l');
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}
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else if (this.isFIFO()) {
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str.push('p');
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}
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else if (this.isSocket()) {
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str.push('s');
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}
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else {
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const mode = this.valueOf();
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const err = new TypeError(`Unexpected "file type": mode=${mode}`);
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//err.stat = this.stat;
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//err.mode = mode;
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throw err;
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}
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// owner read, write, execute
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str.push(this.owner.read ? 'r' : '-');
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str.push(this.owner.write ? 'w' : '-');
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if (this.setuid) {
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str.push(this.owner.execute ? 's' : 'S');
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}
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else {
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str.push(this.owner.execute ? 'x' : '-');
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}
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// group read, write, execute
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str.push(this.group.read ? 'r' : '-');
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str.push(this.group.write ? 'w' : '-');
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if (this.setgid) {
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str.push(this.group.execute ? 's' : 'S');
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}
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else {
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str.push(this.group.execute ? 'x' : '-');
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}
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// others read, write, execute
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str.push(this.others.read ? 'r' : '-');
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str.push(this.others.write ? 'w' : '-');
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if (this.sticky) {
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str.push(this.others.execute ? 't' : 'T');
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}
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else {
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str.push(this.others.execute ? 'x' : '-');
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}
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return str.join('');
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}
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valueOf() {
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return this.stat.mode;
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}
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get setuid() {
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return Boolean(this.stat.mode & S_ISUID);
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}
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set setuid(v) {
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if (v) {
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this.stat.mode |= S_ISUID;
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}
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else {
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this.stat.mode &= ~S_ISUID;
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}
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}
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get setgid() {
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return Boolean(this.stat.mode & S_ISGID);
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}
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set setgid(v) {
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if (v) {
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this.stat.mode |= S_ISGID;
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}
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else {
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this.stat.mode &= ~S_ISGID;
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}
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}
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get sticky() {
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return Boolean(this.stat.mode & S_ISVTX);
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}
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set sticky(v) {
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if (v) {
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this.stat.mode |= S_ISVTX;
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}
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else {
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this.stat.mode &= ~S_ISVTX;
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}
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}
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}
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createMode.Mode = Mode;
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// So that `instanceof` checks work as expected
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createMode.prototype = Mode.prototype;
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})(createMode || (createMode = {}));
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module.exports = createMode;
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//# sourceMappingURL=index.js.map
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