dchest / Safefile
Licence: bsd-2-clause
Go package safefile implements safe "atomic" saving of files.
Stars: ✭ 77
Programming Languages
go
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safefile
Go package safefile implements safe "atomic" saving of files.
Instead of truncating and overwriting the destination file, it creates a temporary file in the same directory, writes to it, and then renames the temporary file to the original name when calling Commit.
Installation
$ go get github.com/dchest/safefile
Documentation
https://godoc.org/github.com/dchest/safefile
Example
f, err := safefile.Create("/home/ken/report.txt", 0644)
if err != nil {
// ...
}
// Created temporary file /home/ken/sf-ppcyksu5hyw2mfec.tmp
defer f.Close()
_, err = io.WriteString(f, "Hello world")
if err != nil {
// ...
}
// Wrote "Hello world" to /home/ken/sf-ppcyksu5hyw2mfec.tmp
err = f.Commit()
if err != nil {
// ...
}
// Renamed /home/ken/sf-ppcyksu5hyw2mfec.tmp to /home/ken/report.txt
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