diff options
| author | Florian Dold <florian.dold@gmail.com> | 2016-11-03 01:33:53 +0100 |
|---|---|---|
| committer | Florian Dold <florian.dold@gmail.com> | 2016-11-03 01:33:53 +0100 |
| commit | d1291f67551c58168af43698a359cb5ddfd266b0 (patch) | |
| tree | 55a13ed29fe1915e3f42f1b1b7038dafa2e975a7 /node_modules/adm-zip/util/utils.js | |
| parent | d0a0695fb5d34996850723f7d4b1b59c3df909c2 (diff) | |
node_modules
Diffstat (limited to 'node_modules/adm-zip/util/utils.js')
| -rw-r--r-- | node_modules/adm-zip/util/utils.js | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/node_modules/adm-zip/util/utils.js b/node_modules/adm-zip/util/utils.js new file mode 100644 index 000000000..b14db8c1c --- /dev/null +++ b/node_modules/adm-zip/util/utils.js @@ -0,0 +1,145 @@ +var fs = require("fs"),
+ pth = require('path');
+
+fs.existsSync = fs.existsSync || pth.existsSync;
+
+module.exports = (function() {
+
+ var crcTable = [],
+ Constants = require('./constants'),
+ Errors = require('./errors'),
+
+ PATH_SEPARATOR = pth.normalize("/");
+
+
+ function mkdirSync(/*String*/path) {
+ var resolvedPath = path.split(PATH_SEPARATOR)[0];
+ path.split(PATH_SEPARATOR).forEach(function(name) {
+ if (!name || name.substr(-1,1) == ":") return;
+ resolvedPath += PATH_SEPARATOR + name;
+ var stat;
+ try {
+ stat = fs.statSync(resolvedPath);
+ } catch (e) {
+ fs.mkdirSync(resolvedPath);
+ }
+ if (stat && stat.isFile())
+ throw Errors.FILE_IN_THE_WAY.replace("%s", resolvedPath);
+ });
+ }
+
+ function findSync(/*String*/root, /*RegExp*/pattern, /*Boolean*/recoursive) {
+ if (typeof pattern === 'boolean') {
+ recoursive = pattern;
+ pattern = undefined;
+ }
+ var files = [];
+ fs.readdirSync(root).forEach(function(file) {
+ var path = pth.join(root, file);
+
+ if (fs.statSync(path).isDirectory() && recoursive)
+ files = files.concat(findSync(path, pattern, recoursive));
+
+ if (!pattern || pattern.test(path)) {
+ files.push(pth.normalize(path) + (fs.statSync(path).isDirectory() ? PATH_SEPARATOR : ""));
+ }
+
+ });
+ return files;
+ }
+
+ return {
+ makeDir : function(/*String*/path) {
+ mkdirSync(path);
+ },
+
+ crc32 : function(buf) {
+ var b = new Buffer(4);
+ if (!crcTable.length) {
+ for (var n = 0; n < 256; n++) {
+ var c = n;
+ for (var k = 8; --k >= 0;) //
+ if ((c & 1) != 0) { c = 0xedb88320 ^ (c >>> 1); } else { c = c >>> 1; }
+ if (c < 0) {
+ b.writeInt32LE(c, 0);
+ c = b.readUInt32LE(0);
+ }
+ crcTable[n] = c;
+ }
+ }
+ var crc = 0, off = 0, len = buf.length, c1 = ~crc;
+ while(--len >= 0) c1 = crcTable[(c1 ^ buf[off++]) & 0xff] ^ (c1 >>> 8);
+ crc = ~c1;
+ b.writeInt32LE(crc & 0xffffffff, 0);
+ return b.readUInt32LE(0);
+ },
+
+ methodToString : function(/*Number*/method) {
+ switch (method) {
+ case Constants.STORED:
+ return 'STORED (' + method + ')';
+ case Constants.DEFLATED:
+ return 'DEFLATED (' + method + ')';
+ default:
+ return 'UNSUPPORTED (' + method + ')'
+ }
+
+ },
+
+ writeFileTo : function(/*String*/path, /*Buffer*/content, /*Boolean*/overwrite, /*Number*/attr) {
+ if (fs.existsSync(path)) {
+ if (!overwrite)
+ return false; // cannot overwite
+
+ var stat = fs.statSync(path);
+ if (stat.isDirectory()) {
+ return false;
+ }
+ }
+ var folder = pth.dirname(path);
+ if (!fs.existsSync(folder)) {
+ mkdirSync(folder);
+ }
+
+ var fd;
+ try {
+ fd = fs.openSync(path, 'w', 438); // 0666
+ } catch(e) {
+ fs.chmodSync(path, 438);
+ fd = fs.openSync(path, 'w', 438);
+ }
+ if (fd) {
+ fs.writeSync(fd, content, 0, content.length, 0);
+ fs.closeSync(fd);
+ }
+ fs.chmodSync(path, attr || 438);
+ return true;
+ },
+
+ findFiles : function(/*String*/path) {
+ return findSync(path, true);
+ },
+
+ getAttributes : function(/*String*/path) {
+
+ },
+
+ setAttributes : function(/*String*/path) {
+
+ },
+
+ toBuffer : function(input) {
+ if (Buffer.isBuffer(input)) {
+ return input;
+ } else {
+ if (input.length == 0) {
+ return new Buffer(0)
+ }
+ return new Buffer(input, 'utf8');
+ }
+ },
+
+ Constants : Constants,
+ Errors : Errors
+ }
+})();
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