gram@google.com
ba92707967
Review URL: https://chromiumcodereview.appspot.com//10897016 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@11648 260f80e4-7a28-3924-810f-c04153c831b5
103 lines
3.0 KiB
Dart
103 lines
3.0 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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/**
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* Read the contents of a file [fileName] into a [List] of [String]s.
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* If the file does not exist and [errorIfNoFile] is true, throw an
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* exception, else return an empty list.
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*/
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List<String> getFileContents(String filename, bool errorIfNoFile) {
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File f = new File(filename);
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if (!f.existsSync()) {
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if (errorIfNoFile) {
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throw new Exception('Config file $filename not found.');
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} else {
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return new List();
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}
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}
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return f.readAsLinesSync();
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}
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/** Copy a file with path [sourceName] to destination [destName]. */
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void copyFile(String sourceName, String destName) {
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var sourceFile = new File(sourceName);
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var destFile = new File(destName);
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var istream = sourceFile.openInputStream();
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var ostream = destFile.openOutputStream(FileMode.WRITE);
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istream.pipe(ostream);
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// TODO(gram) - make sure both streams are closed.
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// I think they are but the docs are not clear on this point.
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}
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/** Create a file [fileName] and populate it with [contents]. */
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void createFile(String fileName, String contents) {
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var file = new File(fileName);
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var ostream = file.openOutputStream(FileMode.WRITE);
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ostream.writeString(contents);
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ostream.close();
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}
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/**
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* Given a file path [path], make it absolute if it is relative,
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* and return the result.
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*/
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String makePathAbsolute(String path) {
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var p = new Path(path).canonicalize();
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if (p.isAbsolute) {
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return p.toString();
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} else {
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var cwd = new Path((new Directory.current()).path);
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return cwd.join(p).toString();
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}
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}
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/**
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* Create the list of all the files in a set of directories
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* ([dirs]) whose names match [filePat]. If [recurse] is true
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* look at subdirectories too. Once they have all been enumerated,
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* call [onComplete].
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*/
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void buildFileList(List dirs, RegExp filePat, bool recurse,
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Function onComplete) {
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var files = new List();
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var dirCount = 1;
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for (var i = 0; i < dirs.length; i++) {
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var path = dirs[i];
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// Is this a regular file?
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File f = new File(path);
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if (f.existsSync()) {
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if (filePat.hasMatch(path)) {
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files.add(path);
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}
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} else { // Try treat it as a directory.
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Directory d = new Directory(path);
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if (d.existsSync()) {
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++dirCount;
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var lister = d.list(recursive: recurse);
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lister.onFile = (file) {
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if (filePat.hasMatch(file)) {
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files.add(file);
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}
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};
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lister.onDone = (complete) {
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if (complete && --dirCount == 0) {
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onComplete(files);
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}
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};
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} else { // Does not exist.
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print('$path does not exist.');
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}
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}
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}
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if (--dirCount == 0) {
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onComplete(files);
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}
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}
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/** Delete a file. */
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void deleteFile(String fname) {
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var f = new File(fname);
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f.deleteSync();
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}
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