45 lines
1.1 KiB
Markdown
45 lines
1.1 KiB
Markdown
# safefile
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[](https://travis-ci.org/dchest/safefile) [](https://ci.appveyor.com/project/dchest/safefile)
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Go package safefile implements safe "atomic" saving of files.
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Instead of truncating and overwriting the destination file, it creates a
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temporary file in the same directory, writes to it, and then renames the
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temporary file to the original name when calling Commit.
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### Installation
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```
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$ go get github.com/dchest/safefile
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```
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### Documentation
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<https://godoc.org/github.com/dchest/safefile>
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### Example
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```go
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f, err := safefile.Create("/home/ken/report.txt", 0644)
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if err != nil {
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// ...
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}
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// Created temporary file /home/ken/sf-ppcyksu5hyw2mfec.tmp
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defer f.Close()
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_, err = io.WriteString(f, "Hello world")
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if err != nil {
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// ...
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}
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// Wrote "Hello world" to /home/ken/sf-ppcyksu5hyw2mfec.tmp
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err = f.Commit()
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if err != nil {
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// ...
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}
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// Renamed /home/ken/sf-ppcyksu5hyw2mfec.tmp to /home/ken/report.txt
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```
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