115 lines
2.6 KiB
JavaScript
115 lines
2.6 KiB
JavaScript
var fstream = require('fstream');
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var fstreamIgnore = require('fstream-ignore');
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var fs = require('./fs');
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var Q = require('q');
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function copy(reader, writer) {
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var deferred;
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var ignore;
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// Filter symlinks because they are not 100% portable, specially
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// when linking between different drives
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// Following can't be enabled either because symlinks that reference
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// another symlinks will get filtered
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// See: https://github.com/bower/bower/issues/699
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reader.filter = filterSymlinks;
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reader.follow = false;
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if (reader.type === 'Directory' && reader.ignore) {
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ignore = reader.ignore;
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reader = fstreamIgnore(reader);
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reader.addIgnoreRules(ignore);
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} else {
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reader = fstream.Reader(reader);
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}
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deferred = Q.defer();
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reader
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.on('error', deferred.reject)
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// Pipe to writer
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.pipe(fstream.Writer(writer))
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.on('error', deferred.reject)
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.on('close', deferred.resolve);
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return deferred.promise;
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}
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function copyMode(src, dst) {
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return Q.nfcall(fs.stat, src)
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.then(function (stat) {
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return Q.nfcall(fs.chmod, dst, stat.mode);
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});
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}
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function filterSymlinks(entry) {
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return entry.type !== 'SymbolicLink';
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}
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function parseOptions(opts) {
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opts = opts || {};
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if (opts.mode != null) {
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opts.copyMode = false;
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} else if (opts.copyMode == null) {
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opts.copyMode = true;
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}
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return opts;
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}
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// ---------------------
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// Available options:
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// - mode: force final mode of dst (defaults to null)
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// - copyMode: copy mode of src to dst, only if mode is not specified (defaults to true)
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function copyFile(src, dst, opts) {
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var promise;
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opts = parseOptions(opts);
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promise = copy({
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path: src,
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type: 'File'
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}, {
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path: dst,
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mode: opts.mode,
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type: 'File'
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});
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if (opts.copyMode) {
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promise = promise.then(copyMode.bind(copyMode, src, dst));
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}
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return promise;
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}
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// Available options:
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// - ignore: array of patterns to be ignored (defaults to null)
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// - mode: force final mode of dst (defaults to null)
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// - copyMode: copy mode of src to dst, only if mode is not specified (defaults to true)
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function copyDir(src, dst, opts) {
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var promise;
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opts = parseOptions(opts);
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promise = copy({
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path: src,
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type: 'Directory',
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ignore: opts.ignore
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}, {
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path: dst,
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mode: opts.mode,
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type: 'Directory'
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});
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if (opts.copyMode) {
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promise = promise.then(copyMode.bind(copyMode, src, dst));
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}
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return promise;
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}
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module.exports.copyDir = copyDir;
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module.exports.copyFile = copyFile;
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