Bobby L. Craig

graceful-fs

# graceful-fs graceful-fs functions as a drop-in replacement for the fs module, making various improvements. The improvements are meant to normalize behavior across different platforms and environments, and to make filesystem access more resilient to errors. ## Improvements over fs module graceful-fs: * keeps track of how many file descriptors are open, and by default limits this to 1024. Any further requests to open a file are put in a queue until new slots become available. If 1024 turns out to be too much, it decreases the limit further. * fixes `lchmod` for Node versions prior to 0.6.2. * implements `fs.lutimes` if possible. Otherwise it becomes a noop. * ignores `EINVAL` and `EPERM` errors in `chown`, `fchown` or `lchown` if the user isn't root. * makes `lchmod` and `lchown` become noops, if not available. * retries reading a file if `read` results in EAGAIN error. On Windows, it retries renaming a file for up to one second if `EACCESS` or `EPERM` error occurs, likely because antivirus software has locked the directory. ## Configuration The maximum number of open file descriptors that graceful-fs manages may be adjusted by setting `fs.MAX_OPEN` to a different number. The default is 1024.