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Side by Side Diff: dart/frog/file_system_node.dart

Issue 10164004: Remove frogsh. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge
Patch Set: Rebased Created 8 years, 8 months ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file.
4
5 #library('file_system_node');
6
7 #import('file_system.dart');
8 #import('lib/node/node.dart');
9
10 /** File system implementation using nodejs api's (for self-hosted compiler). */
11 class NodeFileSystem implements FileSystem {
12 void writeString(String outfile, String text) {
13 fs.writeFileSync(outfile, text);
14 }
15
16 String readAll(String filename) {
17 return fs.readFileSync(filename, 'utf8');
18 }
19
20 bool fileExists(String filename) {
21 return path.existsSync(filename);
22 }
23
24 void createDirectory(String path, [bool recursive = false]) {
25 if (!recursive) {
26 fs.mkdirSync(path);
27 return;
28 }
29
30 // See how much of the path already exists and how much we need to create.
31 final parts = path.split('/');
32 var existing = '.';
33 var part;
34 for (part = 0; part < parts.length; part++) {
35 final subpath = joinPaths(existing, parts[part]);
36
37 try {
38 final stat = fs.statSync(subpath);
39
40 if (stat.isDirectory()) {
41 existing = subpath;
42 } else {
43 throw 'Cannot create directory $path because $existing exists and ' +
44 'is not a directory.';
45 }
46 } catch (var e) {
47 // Ugly hack. We only want to catch ENOENT exceptions from fs.statSync
48 // which means the path we're trying doesn't exist. Since this is coming
49 // from node, we can't check the exception's type.
50 if (e.toString().indexOf('ENOENT') != -1) break;
51
52 // Re-throw any other exceptions.
53 throw e;
54 }
55 }
56
57 // Create the remaining directories.
58 for (; part < parts.length; part++) {
59 existing = joinPaths(existing, parts[part]);
60 fs.mkdirSync(existing);
61 }
62 }
63
64 void removeDirectory(String path, [bool recursive = false]) {
65 if (recursive) {
66 // Remove the contents first.
67 for (final file in fs.readdirSync(path)) {
68 final subpath = joinPaths(path, file);
69 final stat = fs.statSync(subpath);
70
71 if (stat.isDirectory()) {
72 // Recurse into subdirectories.
73 removeDirectory(subpath, recursive: true);
74 } else if (stat.isFile()) {
75 // Try to remove the file.
76 fs.unlinkSync(subpath);
77 }
78 }
79 }
80
81 fs.rmdirSync(path);
82 }
83 }
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