fs-write-stream-atomic

Like fs.createWriteStream(...), but atomic.

Writes to a tmp file and does an atomic fs.rename to move it into place when it's done.

First rule of debugging: It's always a race condition.

varfsWriteStreamAtomic=require('fs-write-stream-atomic')// options are optional.varwrite=fsWriteStreamAtomic('output.txt',options)varread=fs.createReadStream('input.txt')read.pipe(write)// When the write stream emits a 'finish' or 'close' event,// you can be sure that it is moved into place, and contains// all the bytes that were written to it, even if something else// was writing to `output.txt` at the same time.

• filename {String} The file we want to write to
• options {Object}
  • chown {Object} User and group to set ownership after write
    • uid {Number}
    • gid {Number}
  • encoding {String} default = 'utf8'
  • mode {Number} default = 0666
  • flags {String} default = 'w'