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Directly assign values for watchFile and watchDirectory in node System

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This commit is contained in:
Sheetal Nandi
2018-03-08 12:18:04 -08:00
parent ae8637c99f
commit 8378f692c7
1 changed files with 16 additions and 19 deletions
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35
src/compiler/sys.ts
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@@ -133,11 +133,7 @@ namespace ts {
}
/* @internal */
export function createDynamicPriorityPollingWatchFile(host: System): HostWatchFile {
if (!host.getModifiedTime || !host.setTimeout) {
throw notImplemented();
}
export function createDynamicPriorityPollingWatchFile(host: { getModifiedTime: System["getModifiedTime"]; setTimeout: System["setTimeout"]; }): HostWatchFile {
interface WatchedFile extends ts.WatchedFile {
isClosed?: boolean;
unchangedPolls: number;
@@ -555,6 +551,8 @@ namespace ts {
},
readFile,
writeFile,
watchFile: getWatchFile(),
watchDirectory: getWatchDirectory(),
resolvePath: path => _path.resolve(path),
fileExists,
directoryExists,
@@ -574,14 +572,7 @@ namespace ts {
return process.env[name] || "";
},
readDirectory,
getModifiedTime(path) {
try {
return _fs.statSync(path).mtime;
}
catch (e) {
return undefined;
}
},
getModifiedTime,
createHash: _crypto ? createMD5HashUsingNativeCrypto : generateDjb2Hash,
getMemoryUsage() {
if (global.gc) {
@@ -625,9 +616,6 @@ namespace ts {
process.stdout.write("\x1Bc");
}
};
nodeSystem.watchFile = getWatchFile();
nodeSystem.watchDirectory = getWatchDirectory();
return nodeSystem;
function isFileSystemCaseSensitive(): boolean {
@@ -654,13 +642,13 @@ namespace ts {
return fsWatchFile;
case "DynamicPriorityPolling":
// Use polling interval but change the interval depending on file changes and their default polling interval
return createDynamicPriorityPollingWatchFile(nodeSystem);
return createDynamicPriorityPollingWatchFile({ getModifiedTime, setTimeout });
case "UseFsEvents":
// Use notifications from FS to watch with falling back to fs.watchFile
return watchFileUsingFsWatch;
case "UseFsEventsWithFallbackDynamicPolling":
// Use notifications from FS to watch with falling back to dynamic watch file
dynamicPollingWatchFile = createDynamicPriorityPollingWatchFile(nodeSystem);
dynamicPollingWatchFile = createDynamicPriorityPollingWatchFile({ getModifiedTime, setTimeout });
return createWatchFileUsingDynamicWatchFile(dynamicPollingWatchFile);
case "UseFsEventsOnParentDirectory":
// Use notifications from FS to watch with falling back to fs.watchFile
@@ -683,7 +671,7 @@ namespace ts {
const watchDirectory = tscWatchDirectory === "RecursiveDirectoryUsingFsWatchFile" ?
createWatchDirectoryUsing(fsWatchFile) :
tscWatchDirectory === "RecursiveDirectoryUsingDynamicPriorityPolling" ?
createWatchDirectoryUsing(dynamicPollingWatchFile || createDynamicPriorityPollingWatchFile(nodeSystem)) :
createWatchDirectoryUsing(dynamicPollingWatchFile || createDynamicPriorityPollingWatchFile({ getModifiedTime, setTimeout })) :
watchDirectoryUsingFsWatch;
const watchDirectoryRecursively = createRecursiveDirectoryWatcher({
filePathComparer: useCaseSensitiveFileNames ? compareStringsCaseSensitive : compareStringsCaseInsensitive,
@@ -1027,6 +1015,15 @@ namespace ts {
return filter<string>(_fs.readdirSync(path), dir => fileSystemEntryExists(combinePaths(path, dir), FileSystemEntryKind.Directory));
}
function getModifiedTime(path: string) {
try {
return _fs.statSync(path).mtime;
}
catch (e) {
return undefined;
}
}
/**
* djb2 hashing algorithm
* http://www.cse.yorku.ca/~oz/hash.html