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Add some logging to the sys.watchFile and sys.watchDirectory

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This commit is contained in:
Sheetal Nandi 2019-08-01 14:01:57 -07:00
parent e293232f6a
commit 8cf8eb1720
2 changed files with 8 additions and 0 deletions
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5
src/compiler/sys.ts
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@ -379,6 +379,9 @@ namespace ts {
/*@internal*/
export const ignoredPaths = ["/node_modules/.", "/.git", "/.#"];
/*@internal*/
export let sysLog: (s: string) => void = noop;
/*@internal*/
export interface RecursiveDirectoryWatcherHost {
watchDirectory: HostWatchDirectory;
@ -1053,6 +1056,7 @@ namespace ts {
* @param createWatcher
*/
function invokeCallbackAndUpdateWatcher(createWatcher: () => FileWatcher) {
sysLog(`sysLog:: ${fileOrDirectory}:: Changing watcher to ${createWatcher === watchPresentFileSystemEntry ? "Present" : "Missing"}FileSystemEntryWatcher`);
// Call the callback for current directory
callback("rename", "");
@ -1115,6 +1119,7 @@ namespace ts {
* Eg. on linux the number of watches are limited and one could easily exhaust watches and the exception ENOSPC is thrown when creating watcher at that point
*/
function watchPresentFileSystemEntryWithFsWatchFile(): FileWatcher {
sysLog(`sysLog:: ${fileOrDirectory}:: Changing to fsWatchFile`);
return fallbackPollingWatchFile(fileOrDirectory, createFileWatcherCallback(callback), pollingInterval);
}

3
src/compiler/watchUtilities.ts
View File

@ -370,6 +370,9 @@ namespace ts {
const createFileWatcher: CreateFileWatcher<WatchFileHost, PollingInterval, FileWatcherEventKind, never, X, Y> = getCreateFileWatcher(watchLogLevel, watchFile);
const createFilePathWatcher: CreateFileWatcher<WatchFileHost, PollingInterval, FileWatcherEventKind, Path, X, Y> = watchLogLevel === WatchLogLevel.None ? watchFilePath : createFileWatcher;
const createDirectoryWatcher: CreateFileWatcher<WatchDirectoryHost, WatchDirectoryFlags, undefined, never, X, Y> = getCreateFileWatcher(watchLogLevel, watchDirectory);
if (watchLogLevel === WatchLogLevel.Verbose && sysLog === noop) {
sysLog = s => log(s);
}
return {
watchFile: (host, file, callback, pollingInterval, detailInfo1, detailInfo2) =>
createFileWatcher(host, file, callback, pollingInterval, /*passThrough*/ undefined, detailInfo1, detailInfo2, watchFile, log, "FileWatcher", getDetailWatchInfo),